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// CodeMirror, copyright (c) by Marijn Haverbeke and others |
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// Distributed under an MIT license: https://codemirror.net/LICENSE |
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|
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// This is CodeMirror (https://codemirror.net), a code editor |
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// implemented in JavaScript on top of the browser's DOM. |
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// |
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// You can find some technical background for some of the code below |
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// at http://marijnhaverbeke.nl/blog/#cm-internals . |
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|
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(function (global, factory) { |
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typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : |
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typeof define === 'function' && define.amd ? define(factory) : |
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(global.CodeMirror = factory()); |
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}(this, (function () { 'use strict'; |
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|
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// Kludges for bugs and behavior differences that can't be feature |
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// detected are enabled based on userAgent etc sniffing. |
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var userAgent = navigator.userAgent; |
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var platform = navigator.platform; |
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|
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var gecko = /gecko\/\d/i.test(userAgent); |
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var ie_upto10 = /MSIE \d/.test(userAgent); |
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var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent); |
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var edge = /Edge\/(\d+)/.exec(userAgent); |
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var ie = ie_upto10 || ie_11up || edge; |
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var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]); |
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var webkit = !edge && /WebKit\//.test(userAgent); |
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var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent); |
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var chrome = !edge && /Chrome\//.test(userAgent); |
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var presto = /Opera\//.test(userAgent); |
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var safari = /Apple Computer/.test(navigator.vendor); |
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var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent); |
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var phantom = /PhantomJS/.test(userAgent); |
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|
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var ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent); |
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var android = /Android/.test(userAgent); |
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// This is woefully incomplete. Suggestions for alternative methods welcome. |
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var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent); |
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var mac = ios || /Mac/.test(platform); |
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var chromeOS = /\bCrOS\b/.test(userAgent); |
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var windows = /win/i.test(platform); |
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|
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var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/); |
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if (presto_version) { presto_version = Number(presto_version[1]); } |
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if (presto_version && presto_version >= 15) { presto = false; webkit = true; } |
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// Some browsers use the wrong event properties to signal cmd/ctrl on OS X |
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var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11)); |
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var captureRightClick = gecko || (ie && ie_version >= 9); |
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|
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function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") } |
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|
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var rmClass = function(node, cls) { |
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var current = node.className; |
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var match = classTest(cls).exec(current); |
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if (match) { |
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var after = current.slice(match.index + match[0].length); |
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node.className = current.slice(0, match.index) + (after ? match[1] + after : ""); |
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} |
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}; |
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|
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function removeChildren(e) { |
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for (var count = e.childNodes.length; count > 0; --count) |
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{ e.removeChild(e.firstChild); } |
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return e |
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} |
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|
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function removeChildrenAndAdd(parent, e) { |
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return removeChildren(parent).appendChild(e) |
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} |
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|
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function elt(tag, content, className, style) { |
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var e = document.createElement(tag); |
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if (className) { e.className = className; } |
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if (style) { e.style.cssText = style; } |
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if (typeof content == "string") { e.appendChild(document.createTextNode(content)); } |
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else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } } |
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return e |
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} |
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// wrapper for elt, which removes the elt from the accessibility tree |
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function eltP(tag, content, className, style) { |
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var e = elt(tag, content, className, style); |
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e.setAttribute("role", "presentation"); |
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return e |
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} |
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|
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var range; |
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if (document.createRange) { range = function(node, start, end, endNode) { |
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var r = document.createRange(); |
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r.setEnd(endNode || node, end); |
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r.setStart(node, start); |
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return r |
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}; } |
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else { range = function(node, start, end) { |
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var r = document.body.createTextRange(); |
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try { r.moveToElementText(node.parentNode); } |
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catch(e) { return r } |
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r.collapse(true); |
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r.moveEnd("character", end); |
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r.moveStart("character", start); |
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return r |
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}; } |
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|
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function contains(parent, child) { |
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if (child.nodeType == 3) // Android browser always returns false when child is a textnode |
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{ child = child.parentNode; } |
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if (parent.contains) |
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{ return parent.contains(child) } |
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do { |
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if (child.nodeType == 11) { child = child.host; } |
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if (child == parent) { return true } |
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} while (child = child.parentNode) |
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} |
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|
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function activeElt() { |
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// IE and Edge may throw an "Unspecified Error" when accessing document.activeElement. |
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// IE < 10 will throw when accessed while the page is loading or in an iframe. |
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// IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable. |
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var activeElement; |
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try { |
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activeElement = document.activeElement; |
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} catch(e) { |
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activeElement = document.body || null; |
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} |
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while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement) |
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{ activeElement = activeElement.shadowRoot.activeElement; } |
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return activeElement |
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} |
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|
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function addClass(node, cls) { |
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var current = node.className; |
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if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls; } |
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} |
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function joinClasses(a, b) { |
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var as = a.split(" "); |
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for (var i = 0; i < as.length; i++) |
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{ if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i]; } } |
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return b |
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} |
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|
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var selectInput = function(node) { node.select(); }; |
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if (ios) // Mobile Safari apparently has a bug where select() is broken. |
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{ selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; } |
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else if (ie) // Suppress mysterious IE10 errors |
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{ selectInput = function(node) { try { node.select(); } catch(_e) {} }; } |
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|
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function bind(f) { |
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var args = Array.prototype.slice.call(arguments, 1); |
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return function(){return f.apply(null, args)} |
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} |
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|
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function copyObj(obj, target, overwrite) { |
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if (!target) { target = {}; } |
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for (var prop in obj) |
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{ if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop))) |
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{ target[prop] = obj[prop]; } } |
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return target |
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} |
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|
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// Counts the column offset in a string, taking tabs into account. |
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// Used mostly to find indentation. |
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function countColumn(string, end, tabSize, startIndex, startValue) { |
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if (end == null) { |
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end = string.search(/[^\s\u00a0]/); |
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if (end == -1) { end = string.length; } |
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} |
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for (var i = startIndex || 0, n = startValue || 0;;) { |
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var nextTab = string.indexOf("\t", i); |
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if (nextTab < 0 || nextTab >= end) |
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{ return n + (end - i) } |
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n += nextTab - i; |
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n += tabSize - (n % tabSize); |
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i = nextTab + 1; |
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} |
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} |
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|
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var Delayed = function() {this.id = null;}; |
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Delayed.prototype.set = function (ms, f) { |
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clearTimeout(this.id); |
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this.id = setTimeout(f, ms); |
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}; |
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|
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function indexOf(array, elt) { |
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for (var i = 0; i < array.length; ++i) |
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{ if (array[i] == elt) { return i } } |
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return -1 |
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} |
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|
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// Number of pixels added to scroller and sizer to hide scrollbar |
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var scrollerGap = 30; |
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|
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// Returned or thrown by various protocols to signal 'I'm not |
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// handling this'. |
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var Pass = {toString: function(){return "CodeMirror.Pass"}}; |
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|
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// Reused option objects for setSelection & friends |
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var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"}; |
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|
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// The inverse of countColumn -- find the offset that corresponds to |
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// a particular column. |
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function findColumn(string, goal, tabSize) { |
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for (var pos = 0, col = 0;;) { |
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var nextTab = string.indexOf("\t", pos); |
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if (nextTab == -1) { nextTab = string.length; } |
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var skipped = nextTab - pos; |
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if (nextTab == string.length || col + skipped >= goal) |
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{ return pos + Math.min(skipped, goal - col) } |
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col += nextTab - pos; |
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col += tabSize - (col % tabSize); |
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pos = nextTab + 1; |
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if (col >= goal) { return pos } |
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} |
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} |
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|
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var spaceStrs = [""]; |
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function spaceStr(n) { |
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while (spaceStrs.length <= n) |
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{ spaceStrs.push(lst(spaceStrs) + " "); } |
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return spaceStrs[n] |
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} |
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|
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function lst(arr) { return arr[arr.length-1] } |
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|
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function map(array, f) { |
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var out = []; |
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for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); } |
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return out |
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} |
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|
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function insertSorted(array, value, score) { |
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var pos = 0, priority = score(value); |
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while (pos < array.length && score(array[pos]) <= priority) { pos++; } |
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array.splice(pos, 0, value); |
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} |
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|
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function nothing() {} |
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|
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function createObj(base, props) { |
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var inst; |
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if (Object.create) { |
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inst = Object.create(base); |
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} else { |
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nothing.prototype = base; |
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inst = new nothing(); |
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} |
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if (props) { copyObj(props, inst); } |
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return inst |
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} |
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|
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var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/; |
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function isWordCharBasic(ch) { |
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return /\w/.test(ch) || ch > "\x80" && |
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(ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch)) |
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} |
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function isWordChar(ch, helper) { |
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if (!helper) { return isWordCharBasic(ch) } |
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if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true } |
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return helper.test(ch) |
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} |
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|
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function isEmpty(obj) { |
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for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } } |
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return true |
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} |
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|
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// Extending unicode characters. A series of a non-extending char + |
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// any number of extending chars is treated as a single unit as far |
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// as editing and measuring is concerned. This is not fully correct, |
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// since some scripts/fonts/browsers also treat other configurations |
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// of code points as a group. |
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var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/; |
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function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) } |
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|
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// Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range. |
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function skipExtendingChars(str, pos, dir) { |
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while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; } |
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return pos |
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} |
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|
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// Returns the value from the range [`from`; `to`] that satisfies |
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// `pred` and is closest to `from`. Assumes that at least `to` |
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// satisfies `pred`. Supports `from` being greater than `to`. |
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function findFirst(pred, from, to) { |
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// At any point we are certain `to` satisfies `pred`, don't know |
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// whether `from` does. |
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var dir = from > to ? -1 : 1; |
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for (;;) { |
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if (from == to) { return from } |
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var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF); |
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if (mid == from) { return pred(mid) ? from : to } |
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if (pred(mid)) { to = mid; } |
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else { from = mid + dir; } |
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} |
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} |
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|
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// The display handles the DOM integration, both for input reading |
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// and content drawing. It holds references to DOM nodes and |
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// display-related state. |
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|
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function Display(place, doc, input) { |
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var d = this; |
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this.input = input; |
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|
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// Covers bottom-right square when both scrollbars are present. |
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d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler"); |
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d.scrollbarFiller.setAttribute("cm-not-content", "true"); |
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// Covers bottom of gutter when coverGutterNextToScrollbar is on |
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// and h scrollbar is present. |
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d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler"); |
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d.gutterFiller.setAttribute("cm-not-content", "true"); |
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// Will contain the actual code, positioned to cover the viewport. |
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d.lineDiv = eltP("div", null, "CodeMirror-code"); |
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// Elements are added to these to represent selection and cursors. |
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d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1"); |
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d.cursorDiv = elt("div", null, "CodeMirror-cursors"); |
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// A visibility: hidden element used to find the size of things. |
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d.measure = elt("div", null, "CodeMirror-measure"); |
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// When lines outside of the viewport are measured, they are drawn in this. |
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d.lineMeasure = elt("div", null, "CodeMirror-measure"); |
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// Wraps everything that needs to exist inside the vertically-padded coordinate system |
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d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv], |
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null, "position: relative; outline: none"); |
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var lines = eltP("div", [d.lineSpace], "CodeMirror-lines"); |
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// Moved around its parent to cover visible view. |
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d.mover = elt("div", [lines], null, "position: relative"); |
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// Set to the height of the document, allowing scrolling. |
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d.sizer = elt("div", [d.mover], "CodeMirror-sizer"); |
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d.sizerWidth = null; |
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// Behavior of elts with overflow: auto and padding is |
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// inconsistent across browsers. This is used to ensure the |
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// scrollable area is big enough. |
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d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;"); |
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// Will contain the gutters, if any. |
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d.gutters = elt("div", null, "CodeMirror-gutters"); |
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d.lineGutter = null; |
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// Actual scrollable element. |
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d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll"); |
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d.scroller.setAttribute("tabIndex", "-1"); |
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// The element in which the editor lives. |
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d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror"); |
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|
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// Work around IE7 z-index bug (not perfect, hence IE7 not really being supported) |
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if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; } |
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if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; } |
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|
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if (place) { |
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if (place.appendChild) { place.appendChild(d.wrapper); } |
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else { place(d.wrapper); } |
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} |
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|
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// Current rendered range (may be bigger than the view window). |
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d.viewFrom = d.viewTo = doc.first; |
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d.reportedViewFrom = d.reportedViewTo = doc.first; |
| 353 |
// Information about the rendered lines. |
| 354 |
d.view = []; |
| 355 |
d.renderedView = null; |
| 356 |
// Holds info about a single rendered line when it was rendered |
| 357 |
// for measurement, while not in view. |
| 358 |
d.externalMeasured = null; |
| 359 |
// Empty space (in pixels) above the view |
| 360 |
d.viewOffset = 0; |
| 361 |
d.lastWrapHeight = d.lastWrapWidth = 0; |
| 362 |
d.updateLineNumbers = null; |
| 363 |
|
| 364 |
d.nativeBarWidth = d.barHeight = d.barWidth = 0; |
| 365 |
d.scrollbarsClipped = false; |
| 366 |
|
| 367 |
// Used to only resize the line number gutter when necessary (when |
| 368 |
// the amount of lines crosses a boundary that makes its width change) |
| 369 |
d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null; |
| 370 |
// Set to true when a non-horizontal-scrolling line widget is |
| 371 |
// added. As an optimization, line widget aligning is skipped when |
| 372 |
// this is false. |
| 373 |
d.alignWidgets = false; |
| 374 |
|
| 375 |
d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; |
| 376 |
|
| 377 |
// Tracks the maximum line length so that the horizontal scrollbar |
| 378 |
// can be kept static when scrolling. |
| 379 |
d.maxLine = null; |
| 380 |
d.maxLineLength = 0; |
| 381 |
d.maxLineChanged = false; |
| 382 |
|
| 383 |
// Used for measuring wheel scrolling granularity |
| 384 |
d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null; |
| 385 |
|
| 386 |
// True when shift is held down. |
| 387 |
d.shift = false; |
| 388 |
|
| 389 |
// Used to track whether anything happened since the context menu |
| 390 |
// was opened. |
| 391 |
d.selForContextMenu = null; |
| 392 |
|
| 393 |
d.activeTouch = null; |
| 394 |
|
| 395 |
input.init(d); |
| 396 |
} |
| 397 |
|
| 398 |
// Find the line object corresponding to the given line number. |
| 399 |
function getLine(doc, n) { |
| 400 |
n -= doc.first; |
| 401 |
if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") } |
| 402 |
var chunk = doc; |
| 403 |
while (!chunk.lines) { |
| 404 |
for (var i = 0;; ++i) { |
| 405 |
var child = chunk.children[i], sz = child.chunkSize(); |
| 406 |
if (n < sz) { chunk = child; break } |
| 407 |
n -= sz; |
| 408 |
} |
| 409 |
} |
| 410 |
return chunk.lines[n] |
| 411 |
} |
| 412 |
|
| 413 |
// Get the part of a document between two positions, as an array of |
| 414 |
// strings. |
| 415 |
function getBetween(doc, start, end) { |
| 416 |
var out = [], n = start.line; |
| 417 |
doc.iter(start.line, end.line + 1, function (line) { |
| 418 |
var text = line.text; |
| 419 |
if (n == end.line) { text = text.slice(0, end.ch); } |
| 420 |
if (n == start.line) { text = text.slice(start.ch); } |
| 421 |
out.push(text); |
| 422 |
++n; |
| 423 |
}); |
| 424 |
return out |
| 425 |
} |
| 426 |
// Get the lines between from and to, as array of strings. |
| 427 |
function getLines(doc, from, to) { |
| 428 |
var out = []; |
| 429 |
doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value |
| 430 |
return out |
| 431 |
} |
| 432 |
|
| 433 |
// Update the height of a line, propagating the height change |
| 434 |
// upwards to parent nodes. |
| 435 |
function updateLineHeight(line, height) { |
| 436 |
var diff = height - line.height; |
| 437 |
if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } } |
| 438 |
} |
| 439 |
|
| 440 |
// Given a line object, find its line number by walking up through |
| 441 |
// its parent links. |
| 442 |
function lineNo(line) { |
| 443 |
if (line.parent == null) { return null } |
| 444 |
var cur = line.parent, no = indexOf(cur.lines, line); |
| 445 |
for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) { |
| 446 |
for (var i = 0;; ++i) { |
| 447 |
if (chunk.children[i] == cur) { break } |
| 448 |
no += chunk.children[i].chunkSize(); |
| 449 |
} |
| 450 |
} |
| 451 |
return no + cur.first |
| 452 |
} |
| 453 |
|
| 454 |
// Find the line at the given vertical position, using the height |
| 455 |
// information in the document tree. |
| 456 |
function lineAtHeight(chunk, h) { |
| 457 |
var n = chunk.first; |
| 458 |
outer: do { |
| 459 |
for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) { |
| 460 |
var child = chunk.children[i$1], ch = child.height; |
| 461 |
if (h < ch) { chunk = child; continue outer } |
| 462 |
h -= ch; |
| 463 |
n += child.chunkSize(); |
| 464 |
} |
| 465 |
return n |
| 466 |
} while (!chunk.lines) |
| 467 |
var i = 0; |
| 468 |
for (; i < chunk.lines.length; ++i) { |
| 469 |
var line = chunk.lines[i], lh = line.height; |
| 470 |
if (h < lh) { break } |
| 471 |
h -= lh; |
| 472 |
} |
| 473 |
return n + i |
| 474 |
} |
| 475 |
|
| 476 |
function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size} |
| 477 |
|
| 478 |
function lineNumberFor(options, i) { |
| 479 |
return String(options.lineNumberFormatter(i + options.firstLineNumber)) |
| 480 |
} |
| 481 |
|
| 482 |
// A Pos instance represents a position within the text. |
| 483 |
function Pos(line, ch, sticky) { |
| 484 |
if ( sticky === void 0 ) sticky = null; |
| 485 |
|
| 486 |
if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) } |
| 487 |
this.line = line; |
| 488 |
this.ch = ch; |
| 489 |
this.sticky = sticky; |
| 490 |
} |
| 491 |
|
| 492 |
// Compare two positions, return 0 if they are the same, a negative |
| 493 |
// number when a is less, and a positive number otherwise. |
| 494 |
function cmp(a, b) { return a.line - b.line || a.ch - b.ch } |
| 495 |
|
| 496 |
function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 } |
| 497 |
|
| 498 |
function copyPos(x) {return Pos(x.line, x.ch)} |
| 499 |
function maxPos(a, b) { return cmp(a, b) < 0 ? b : a } |
| 500 |
function minPos(a, b) { return cmp(a, b) < 0 ? a : b } |
| 501 |
|
| 502 |
// Most of the external API clips given positions to make sure they |
| 503 |
// actually exist within the document. |
| 504 |
function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))} |
| 505 |
function clipPos(doc, pos) { |
| 506 |
if (pos.line < doc.first) { return Pos(doc.first, 0) } |
| 507 |
var last = doc.first + doc.size - 1; |
| 508 |
if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) } |
| 509 |
return clipToLen(pos, getLine(doc, pos.line).text.length) |
| 510 |
} |
| 511 |
function clipToLen(pos, linelen) { |
| 512 |
var ch = pos.ch; |
| 513 |
if (ch == null || ch > linelen) { return Pos(pos.line, linelen) } |
| 514 |
else if (ch < 0) { return Pos(pos.line, 0) } |
| 515 |
else { return pos } |
| 516 |
} |
| 517 |
function clipPosArray(doc, array) { |
| 518 |
var out = []; |
| 519 |
for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); } |
| 520 |
return out |
| 521 |
} |
| 522 |
|
| 523 |
// Optimize some code when these features are not used. |
| 524 |
var sawReadOnlySpans = false, sawCollapsedSpans = false; |
| 525 |
|
| 526 |
function seeReadOnlySpans() { |
| 527 |
sawReadOnlySpans = true; |
| 528 |
} |
| 529 |
|
| 530 |
function seeCollapsedSpans() { |
| 531 |
sawCollapsedSpans = true; |
| 532 |
} |
| 533 |
|
| 534 |
// TEXTMARKER SPANS |
| 535 |
|
| 536 |
function MarkedSpan(marker, from, to) { |
| 537 |
this.marker = marker; |
| 538 |
this.from = from; this.to = to; |
| 539 |
} |
| 540 |
|
| 541 |
// Search an array of spans for a span matching the given marker. |
| 542 |
function getMarkedSpanFor(spans, marker) { |
| 543 |
if (spans) { for (var i = 0; i < spans.length; ++i) { |
| 544 |
var span = spans[i]; |
| 545 |
if (span.marker == marker) { return span } |
| 546 |
} } |
| 547 |
} |
| 548 |
// Remove a span from an array, returning undefined if no spans are |
| 549 |
// left (we don't store arrays for lines without spans). |
| 550 |
function removeMarkedSpan(spans, span) { |
| 551 |
var r; |
| 552 |
for (var i = 0; i < spans.length; ++i) |
| 553 |
{ if (spans[i] != span) { (r || (r = [])).push(spans[i]); } } |
| 554 |
return r |
| 555 |
} |
| 556 |
// Add a span to a line. |
| 557 |
function addMarkedSpan(line, span) { |
| 558 |
line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]; |
| 559 |
span.marker.attachLine(line); |
| 560 |
} |
| 561 |
|
| 562 |
// Used for the algorithm that adjusts markers for a change in the |
| 563 |
// document. These functions cut an array of spans at a given |
| 564 |
// character position, returning an array of remaining chunks (or |
| 565 |
// undefined if nothing remains). |
| 566 |
function markedSpansBefore(old, startCh, isInsert) { |
| 567 |
var nw; |
| 568 |
if (old) { for (var i = 0; i < old.length; ++i) { |
| 569 |
var span = old[i], marker = span.marker; |
| 570 |
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh); |
| 571 |
if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) { |
| 572 |
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh) |
| 573 |
;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to)); |
| 574 |
} |
| 575 |
} } |
| 576 |
return nw |
| 577 |
} |
| 578 |
function markedSpansAfter(old, endCh, isInsert) { |
| 579 |
var nw; |
| 580 |
if (old) { for (var i = 0; i < old.length; ++i) { |
| 581 |
var span = old[i], marker = span.marker; |
| 582 |
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh); |
| 583 |
if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) { |
| 584 |
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh) |
| 585 |
;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh, |
| 586 |
span.to == null ? null : span.to - endCh)); |
| 587 |
} |
| 588 |
} } |
| 589 |
return nw |
| 590 |
} |
| 591 |
|
| 592 |
// Given a change object, compute the new set of marker spans that |
| 593 |
// cover the line in which the change took place. Removes spans |
| 594 |
// entirely within the change, reconnects spans belonging to the |
| 595 |
// same marker that appear on both sides of the change, and cuts off |
| 596 |
// spans partially within the change. Returns an array of span |
| 597 |
// arrays with one element for each line in (after) the change. |
| 598 |
function stretchSpansOverChange(doc, change) { |
| 599 |
if (change.full) { return null } |
| 600 |
var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans; |
| 601 |
var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans; |
| 602 |
if (!oldFirst && !oldLast) { return null } |
| 603 |
|
| 604 |
var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0; |
| 605 |
// Get the spans that 'stick out' on both sides |
| 606 |
var first = markedSpansBefore(oldFirst, startCh, isInsert); |
| 607 |
var last = markedSpansAfter(oldLast, endCh, isInsert); |
| 608 |
|
| 609 |
// Next, merge those two ends |
| 610 |
var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0); |
| 611 |
if (first) { |
| 612 |
// Fix up .to properties of first |
| 613 |
for (var i = 0; i < first.length; ++i) { |
| 614 |
var span = first[i]; |
| 615 |
if (span.to == null) { |
| 616 |
var found = getMarkedSpanFor(last, span.marker); |
| 617 |
if (!found) { span.to = startCh; } |
| 618 |
else if (sameLine) { span.to = found.to == null ? null : found.to + offset; } |
| 619 |
} |
| 620 |
} |
| 621 |
} |
| 622 |
if (last) { |
| 623 |
// Fix up .from in last (or move them into first in case of sameLine) |
| 624 |
for (var i$1 = 0; i$1 < last.length; ++i$1) { |
| 625 |
var span$1 = last[i$1]; |
| 626 |
if (span$1.to != null) { span$1.to += offset; } |
| 627 |
if (span$1.from == null) { |
| 628 |
var found$1 = getMarkedSpanFor(first, span$1.marker); |
| 629 |
if (!found$1) { |
| 630 |
span$1.from = offset; |
| 631 |
if (sameLine) { (first || (first = [])).push(span$1); } |
| 632 |
} |
| 633 |
} else { |
| 634 |
span$1.from += offset; |
| 635 |
if (sameLine) { (first || (first = [])).push(span$1); } |
| 636 |
} |
| 637 |
} |
| 638 |
} |
| 639 |
// Make sure we didn't create any zero-length spans |
| 640 |
if (first) { first = clearEmptySpans(first); } |
| 641 |
if (last && last != first) { last = clearEmptySpans(last); } |
| 642 |
|
| 643 |
var newMarkers = [first]; |
| 644 |
if (!sameLine) { |
| 645 |
// Fill gap with whole-line-spans |
| 646 |
var gap = change.text.length - 2, gapMarkers; |
| 647 |
if (gap > 0 && first) |
| 648 |
{ for (var i$2 = 0; i$2 < first.length; ++i$2) |
| 649 |
{ if (first[i$2].to == null) |
| 650 |
{ (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } } |
| 651 |
for (var i$3 = 0; i$3 < gap; ++i$3) |
| 652 |
{ newMarkers.push(gapMarkers); } |
| 653 |
newMarkers.push(last); |
| 654 |
} |
| 655 |
return newMarkers |
| 656 |
} |
| 657 |
|
| 658 |
// Remove spans that are empty and don't have a clearWhenEmpty |
| 659 |
// option of false. |
| 660 |
function clearEmptySpans(spans) { |
| 661 |
for (var i = 0; i < spans.length; ++i) { |
| 662 |
var span = spans[i]; |
| 663 |
if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false) |
| 664 |
{ spans.splice(i--, 1); } |
| 665 |
} |
| 666 |
if (!spans.length) { return null } |
| 667 |
return spans |
| 668 |
} |
| 669 |
|
| 670 |
// Used to 'clip' out readOnly ranges when making a change. |
| 671 |
function removeReadOnlyRanges(doc, from, to) { |
| 672 |
var markers = null; |
| 673 |
doc.iter(from.line, to.line + 1, function (line) { |
| 674 |
if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) { |
| 675 |
var mark = line.markedSpans[i].marker; |
| 676 |
if (mark.readOnly && (!markers || indexOf(markers, mark) == -1)) |
| 677 |
{ (markers || (markers = [])).push(mark); } |
| 678 |
} } |
| 679 |
}); |
| 680 |
if (!markers) { return null } |
| 681 |
var parts = [{from: from, to: to}]; |
| 682 |
for (var i = 0; i < markers.length; ++i) { |
| 683 |
var mk = markers[i], m = mk.find(0); |
| 684 |
for (var j = 0; j < parts.length; ++j) { |
| 685 |
var p = parts[j]; |
| 686 |
if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue } |
| 687 |
var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to); |
| 688 |
if (dfrom < 0 || !mk.inclusiveLeft && !dfrom) |
| 689 |
{ newParts.push({from: p.from, to: m.from}); } |
| 690 |
if (dto > 0 || !mk.inclusiveRight && !dto) |
| 691 |
{ newParts.push({from: m.to, to: p.to}); } |
| 692 |
parts.splice.apply(parts, newParts); |
| 693 |
j += newParts.length - 3; |
| 694 |
} |
| 695 |
} |
| 696 |
return parts |
| 697 |
} |
| 698 |
|
| 699 |
// Connect or disconnect spans from a line. |
| 700 |
function detachMarkedSpans(line) { |
| 701 |
var spans = line.markedSpans; |
| 702 |
if (!spans) { return } |
| 703 |
for (var i = 0; i < spans.length; ++i) |
| 704 |
{ spans[i].marker.detachLine(line); } |
| 705 |
line.markedSpans = null; |
| 706 |
} |
| 707 |
function attachMarkedSpans(line, spans) { |
| 708 |
if (!spans) { return } |
| 709 |
for (var i = 0; i < spans.length; ++i) |
| 710 |
{ spans[i].marker.attachLine(line); } |
| 711 |
line.markedSpans = spans; |
| 712 |
} |
| 713 |
|
| 714 |
// Helpers used when computing which overlapping collapsed span |
| 715 |
// counts as the larger one. |
| 716 |
function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 } |
| 717 |
function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 } |
| 718 |
|
| 719 |
// Returns a number indicating which of two overlapping collapsed |
| 720 |
// spans is larger (and thus includes the other). Falls back to |
| 721 |
// comparing ids when the spans cover exactly the same range. |
| 722 |
function compareCollapsedMarkers(a, b) { |
| 723 |
var lenDiff = a.lines.length - b.lines.length; |
| 724 |
if (lenDiff != 0) { return lenDiff } |
| 725 |
var aPos = a.find(), bPos = b.find(); |
| 726 |
var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b); |
| 727 |
if (fromCmp) { return -fromCmp } |
| 728 |
var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b); |
| 729 |
if (toCmp) { return toCmp } |
| 730 |
return b.id - a.id |
| 731 |
} |
| 732 |
|
| 733 |
// Find out whether a line ends or starts in a collapsed span. If |
| 734 |
// so, return the marker for that span. |
| 735 |
function collapsedSpanAtSide(line, start) { |
| 736 |
var sps = sawCollapsedSpans && line.markedSpans, found; |
| 737 |
if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) { |
| 738 |
sp = sps[i]; |
| 739 |
if (sp.marker.collapsed && (start ? sp.from : sp.to) == null && |
| 740 |
(!found || compareCollapsedMarkers(found, sp.marker) < 0)) |
| 741 |
{ found = sp.marker; } |
| 742 |
} } |
| 743 |
return found |
| 744 |
} |
| 745 |
function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) } |
| 746 |
function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) } |
| 747 |
|
| 748 |
function collapsedSpanAround(line, ch) { |
| 749 |
var sps = sawCollapsedSpans && line.markedSpans, found; |
| 750 |
if (sps) { for (var i = 0; i < sps.length; ++i) { |
| 751 |
var sp = sps[i]; |
| 752 |
if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) && |
| 753 |
(!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker; } |
| 754 |
} } |
| 755 |
return found |
| 756 |
} |
| 757 |
|
| 758 |
// Test whether there exists a collapsed span that partially |
| 759 |
// overlaps (covers the start or end, but not both) of a new span. |
| 760 |
// Such overlap is not allowed. |
| 761 |
function conflictingCollapsedRange(doc, lineNo$$1, from, to, marker) { |
| 762 |
var line = getLine(doc, lineNo$$1); |
| 763 |
var sps = sawCollapsedSpans && line.markedSpans; |
| 764 |
if (sps) { for (var i = 0; i < sps.length; ++i) { |
| 765 |
var sp = sps[i]; |
| 766 |
if (!sp.marker.collapsed) { continue } |
| 767 |
var found = sp.marker.find(0); |
| 768 |
var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker); |
| 769 |
var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker); |
| 770 |
if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue } |
| 771 |
if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) || |
| 772 |
fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0)) |
| 773 |
{ return true } |
| 774 |
} } |
| 775 |
} |
| 776 |
|
| 777 |
// A visual line is a line as drawn on the screen. Folding, for |
| 778 |
// example, can cause multiple logical lines to appear on the same |
| 779 |
// visual line. This finds the start of the visual line that the |
| 780 |
// given line is part of (usually that is the line itself). |
| 781 |
function visualLine(line) { |
| 782 |
var merged; |
| 783 |
while (merged = collapsedSpanAtStart(line)) |
| 784 |
{ line = merged.find(-1, true).line; } |
| 785 |
return line |
| 786 |
} |
| 787 |
|
| 788 |
function visualLineEnd(line) { |
| 789 |
var merged; |
| 790 |
while (merged = collapsedSpanAtEnd(line)) |
| 791 |
{ line = merged.find(1, true).line; } |
| 792 |
return line |
| 793 |
} |
| 794 |
|
| 795 |
// Returns an array of logical lines that continue the visual line |
| 796 |
// started by the argument, or undefined if there are no such lines. |
| 797 |
function visualLineContinued(line) { |
| 798 |
var merged, lines; |
| 799 |
while (merged = collapsedSpanAtEnd(line)) { |
| 800 |
line = merged.find(1, true).line |
| 801 |
;(lines || (lines = [])).push(line); |
| 802 |
} |
| 803 |
return lines |
| 804 |
} |
| 805 |
|
| 806 |
// Get the line number of the start of the visual line that the |
| 807 |
// given line number is part of. |
| 808 |
function visualLineNo(doc, lineN) { |
| 809 |
var line = getLine(doc, lineN), vis = visualLine(line); |
| 810 |
if (line == vis) { return lineN } |
| 811 |
return lineNo(vis) |
| 812 |
} |
| 813 |
|
| 814 |
// Get the line number of the start of the next visual line after |
| 815 |
// the given line. |
| 816 |
function visualLineEndNo(doc, lineN) { |
| 817 |
if (lineN > doc.lastLine()) { return lineN } |
| 818 |
var line = getLine(doc, lineN), merged; |
| 819 |
if (!lineIsHidden(doc, line)) { return lineN } |
| 820 |
while (merged = collapsedSpanAtEnd(line)) |
| 821 |
{ line = merged.find(1, true).line; } |
| 822 |
return lineNo(line) + 1 |
| 823 |
} |
| 824 |
|
| 825 |
// Compute whether a line is hidden. Lines count as hidden when they |
| 826 |
// are part of a visual line that starts with another line, or when |
| 827 |
// they are entirely covered by collapsed, non-widget span. |
| 828 |
function lineIsHidden(doc, line) { |
| 829 |
var sps = sawCollapsedSpans && line.markedSpans; |
| 830 |
if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) { |
| 831 |
sp = sps[i]; |
| 832 |
if (!sp.marker.collapsed) { continue } |
| 833 |
if (sp.from == null) { return true } |
| 834 |
if (sp.marker.widgetNode) { continue } |
| 835 |
if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp)) |
| 836 |
{ return true } |
| 837 |
} } |
| 838 |
} |
| 839 |
function lineIsHiddenInner(doc, line, span) { |
| 840 |
if (span.to == null) { |
| 841 |
var end = span.marker.find(1, true); |
| 842 |
return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker)) |
| 843 |
} |
| 844 |
if (span.marker.inclusiveRight && span.to == line.text.length) |
| 845 |
{ return true } |
| 846 |
for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) { |
| 847 |
sp = line.markedSpans[i]; |
| 848 |
if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to && |
| 849 |
(sp.to == null || sp.to != span.from) && |
| 850 |
(sp.marker.inclusiveLeft || span.marker.inclusiveRight) && |
| 851 |
lineIsHiddenInner(doc, line, sp)) { return true } |
| 852 |
} |
| 853 |
} |
| 854 |
|
| 855 |
// Find the height above the given line. |
| 856 |
function heightAtLine(lineObj) { |
| 857 |
lineObj = visualLine(lineObj); |
| 858 |
|
| 859 |
var h = 0, chunk = lineObj.parent; |
| 860 |
for (var i = 0; i < chunk.lines.length; ++i) { |
| 861 |
var line = chunk.lines[i]; |
| 862 |
if (line == lineObj) { break } |
| 863 |
else { h += line.height; } |
| 864 |
} |
| 865 |
for (var p = chunk.parent; p; chunk = p, p = chunk.parent) { |
| 866 |
for (var i$1 = 0; i$1 < p.children.length; ++i$1) { |
| 867 |
var cur = p.children[i$1]; |
| 868 |
if (cur == chunk) { break } |
| 869 |
else { h += cur.height; } |
| 870 |
} |
| 871 |
} |
| 872 |
return h |
| 873 |
} |
| 874 |
|
| 875 |
// Compute the character length of a line, taking into account |
| 876 |
// collapsed ranges (see markText) that might hide parts, and join |
| 877 |
// other lines onto it. |
| 878 |
function lineLength(line) { |
| 879 |
if (line.height == 0) { return 0 } |
| 880 |
var len = line.text.length, merged, cur = line; |
| 881 |
while (merged = collapsedSpanAtStart(cur)) { |
| 882 |
var found = merged.find(0, true); |
| 883 |
cur = found.from.line; |
| 884 |
len += found.from.ch - found.to.ch; |
| 885 |
} |
| 886 |
cur = line; |
| 887 |
while (merged = collapsedSpanAtEnd(cur)) { |
| 888 |
var found$1 = merged.find(0, true); |
| 889 |
len -= cur.text.length - found$1.from.ch; |
| 890 |
cur = found$1.to.line; |
| 891 |
len += cur.text.length - found$1.to.ch; |
| 892 |
} |
| 893 |
return len |
| 894 |
} |
| 895 |
|
| 896 |
// Find the longest line in the document. |
| 897 |
function findMaxLine(cm) { |
| 898 |
var d = cm.display, doc = cm.doc; |
| 899 |
d.maxLine = getLine(doc, doc.first); |
| 900 |
d.maxLineLength = lineLength(d.maxLine); |
| 901 |
d.maxLineChanged = true; |
| 902 |
doc.iter(function (line) { |
| 903 |
var len = lineLength(line); |
| 904 |
if (len > d.maxLineLength) { |
| 905 |
d.maxLineLength = len; |
| 906 |
d.maxLine = line; |
| 907 |
} |
| 908 |
}); |
| 909 |
} |
| 910 |
|
| 911 |
// BIDI HELPERS |
| 912 |
|
| 913 |
function iterateBidiSections(order, from, to, f) { |
| 914 |
if (!order) { return f(from, to, "ltr", 0) } |
| 915 |
var found = false; |
| 916 |
for (var i = 0; i < order.length; ++i) { |
| 917 |
var part = order[i]; |
| 918 |
if (part.from < to && part.to > from || from == to && part.to == from) { |
| 919 |
f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr", i); |
| 920 |
found = true; |
| 921 |
} |
| 922 |
} |
| 923 |
if (!found) { f(from, to, "ltr"); } |
| 924 |
} |
| 925 |
|
| 926 |
var bidiOther = null; |
| 927 |
function getBidiPartAt(order, ch, sticky) { |
| 928 |
var found; |
| 929 |
bidiOther = null; |
| 930 |
for (var i = 0; i < order.length; ++i) { |
| 931 |
var cur = order[i]; |
| 932 |
if (cur.from < ch && cur.to > ch) { return i } |
| 933 |
if (cur.to == ch) { |
| 934 |
if (cur.from != cur.to && sticky == "before") { found = i; } |
| 935 |
else { bidiOther = i; } |
| 936 |
} |
| 937 |
if (cur.from == ch) { |
| 938 |
if (cur.from != cur.to && sticky != "before") { found = i; } |
| 939 |
else { bidiOther = i; } |
| 940 |
} |
| 941 |
} |
| 942 |
return found != null ? found : bidiOther |
| 943 |
} |
| 944 |
|
| 945 |
// Bidirectional ordering algorithm |
| 946 |
// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm |
| 947 |
// that this (partially) implements. |
| 948 |
|
| 949 |
// One-char codes used for character types: |
| 950 |
// L (L): Left-to-Right |
| 951 |
// R (R): Right-to-Left |
| 952 |
// r (AL): Right-to-Left Arabic |
| 953 |
// 1 (EN): European Number |
| 954 |
// + (ES): European Number Separator |
| 955 |
// % (ET): European Number Terminator |
| 956 |
// n (AN): Arabic Number |
| 957 |
// , (CS): Common Number Separator |
| 958 |
// m (NSM): Non-Spacing Mark |
| 959 |
// b (BN): Boundary Neutral |
| 960 |
// s (B): Paragraph Separator |
| 961 |
// t (S): Segment Separator |
| 962 |
// w (WS): Whitespace |
| 963 |
// N (ON): Other Neutrals |
| 964 |
|
| 965 |
// Returns null if characters are ordered as they appear |
| 966 |
// (left-to-right), or an array of sections ({from, to, level} |
| 967 |
// objects) in the order in which they occur visually. |
| 968 |
var bidiOrdering = (function() { |
| 969 |
// Character types for codepoints 0 to 0xff |
| 970 |
var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"; |
| 971 |
// Character types for codepoints 0x600 to 0x6f9 |
| 972 |
var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111"; |
| 973 |
function charType(code) { |
| 974 |
if (code <= 0xf7) { return lowTypes.charAt(code) } |
| 975 |
else if (0x590 <= code && code <= 0x5f4) { return "R" } |
| 976 |
else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) } |
| 977 |
else if (0x6ee <= code && code <= 0x8ac) { return "r" } |
| 978 |
else if (0x2000 <= code && code <= 0x200b) { return "w" } |
| 979 |
else if (code == 0x200c) { return "b" } |
| 980 |
else { return "L" } |
| 981 |
} |
| 982 |
|
| 983 |
var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/; |
| 984 |
var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/; |
| 985 |
|
| 986 |
function BidiSpan(level, from, to) { |
| 987 |
this.level = level; |
| 988 |
this.from = from; this.to = to; |
| 989 |
} |
| 990 |
|
| 991 |
return function(str, direction) { |
| 992 |
var outerType = direction == "ltr" ? "L" : "R"; |
| 993 |
|
| 994 |
if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false } |
| 995 |
var len = str.length, types = []; |
| 996 |
for (var i = 0; i < len; ++i) |
| 997 |
{ types.push(charType(str.charCodeAt(i))); } |
| 998 |
|
| 999 |
// W1. Examine each non-spacing mark (NSM) in the level run, and |
| 1000 |
// change the type of the NSM to the type of the previous |
| 1001 |
// character. If the NSM is at the start of the level run, it will |
| 1002 |
// get the type of sor. |
| 1003 |
for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) { |
| 1004 |
var type = types[i$1]; |
| 1005 |
if (type == "m") { types[i$1] = prev; } |
| 1006 |
else { prev = type; } |
| 1007 |
} |
| 1008 |
|
| 1009 |
// W2. Search backwards from each instance of a European number |
| 1010 |
// until the first strong type (R, L, AL, or sor) is found. If an |
| 1011 |
// AL is found, change the type of the European number to Arabic |
| 1012 |
// number. |
| 1013 |
// W3. Change all ALs to R. |
| 1014 |
for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) { |
| 1015 |
var type$1 = types[i$2]; |
| 1016 |
if (type$1 == "1" && cur == "r") { types[i$2] = "n"; } |
| 1017 |
else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R"; } } |
| 1018 |
} |
| 1019 |
|
| 1020 |
// W4. A single European separator between two European numbers |
| 1021 |
// changes to a European number. A single common separator between |
| 1022 |
// two numbers of the same type changes to that type. |
| 1023 |
for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) { |
| 1024 |
var type$2 = types[i$3]; |
| 1025 |
if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1"; } |
| 1026 |
else if (type$2 == "," && prev$1 == types[i$3+1] && |
| 1027 |
(prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1; } |
| 1028 |
prev$1 = type$2; |
| 1029 |
} |
| 1030 |
|
| 1031 |
// W5. A sequence of European terminators adjacent to European |
| 1032 |
// numbers changes to all European numbers. |
| 1033 |
// W6. Otherwise, separators and terminators change to Other |
| 1034 |
// Neutral. |
| 1035 |
for (var i$4 = 0; i$4 < len; ++i$4) { |
| 1036 |
var type$3 = types[i$4]; |
| 1037 |
if (type$3 == ",") { types[i$4] = "N"; } |
| 1038 |
else if (type$3 == "%") { |
| 1039 |
var end = (void 0); |
| 1040 |
for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {} |
| 1041 |
var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N"; |
| 1042 |
for (var j = i$4; j < end; ++j) { types[j] = replace; } |
| 1043 |
i$4 = end - 1; |
| 1044 |
} |
| 1045 |
} |
| 1046 |
|
| 1047 |
// W7. Search backwards from each instance of a European number |
| 1048 |
// until the first strong type (R, L, or sor) is found. If an L is |
| 1049 |
// found, then change the type of the European number to L. |
| 1050 |
for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) { |
| 1051 |
var type$4 = types[i$5]; |
| 1052 |
if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L"; } |
| 1053 |
else if (isStrong.test(type$4)) { cur$1 = type$4; } |
| 1054 |
} |
| 1055 |
|
| 1056 |
// N1. A sequence of neutrals takes the direction of the |
| 1057 |
// surrounding strong text if the text on both sides has the same |
| 1058 |
// direction. European and Arabic numbers act as if they were R in |
| 1059 |
// terms of their influence on neutrals. Start-of-level-run (sor) |
| 1060 |
// and end-of-level-run (eor) are used at level run boundaries. |
| 1061 |
// N2. Any remaining neutrals take the embedding direction. |
| 1062 |
for (var i$6 = 0; i$6 < len; ++i$6) { |
| 1063 |
if (isNeutral.test(types[i$6])) { |
| 1064 |
var end$1 = (void 0); |
| 1065 |
for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {} |
| 1066 |
var before = (i$6 ? types[i$6-1] : outerType) == "L"; |
| 1067 |
var after = (end$1 < len ? types[end$1] : outerType) == "L"; |
| 1068 |
var replace$1 = before == after ? (before ? "L" : "R") : outerType; |
| 1069 |
for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; } |
| 1070 |
i$6 = end$1 - 1; |
| 1071 |
} |
| 1072 |
} |
| 1073 |
|
| 1074 |
// Here we depart from the documented algorithm, in order to avoid |
| 1075 |
// building up an actual levels array. Since there are only three |
| 1076 |
// levels (0, 1, 2) in an implementation that doesn't take |
| 1077 |
// explicit embedding into account, we can build up the order on |
| 1078 |
// the fly, without following the level-based algorithm. |
| 1079 |
var order = [], m; |
| 1080 |
for (var i$7 = 0; i$7 < len;) { |
| 1081 |
if (countsAsLeft.test(types[i$7])) { |
| 1082 |
var start = i$7; |
| 1083 |
for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {} |
| 1084 |
order.push(new BidiSpan(0, start, i$7)); |
| 1085 |
} else { |
| 1086 |
var pos = i$7, at = order.length; |
| 1087 |
for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {} |
| 1088 |
for (var j$2 = pos; j$2 < i$7;) { |
| 1089 |
if (countsAsNum.test(types[j$2])) { |
| 1090 |
if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); } |
| 1091 |
var nstart = j$2; |
| 1092 |
for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {} |
| 1093 |
order.splice(at, 0, new BidiSpan(2, nstart, j$2)); |
| 1094 |
pos = j$2; |
| 1095 |
} else { ++j$2; } |
| 1096 |
} |
| 1097 |
if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); } |
| 1098 |
} |
| 1099 |
} |
| 1100 |
if (direction == "ltr") { |
| 1101 |
if (order[0].level == 1 && (m = str.match(/^\s+/))) { |
| 1102 |
order[0].from = m[0].length; |
| 1103 |
order.unshift(new BidiSpan(0, 0, m[0].length)); |
| 1104 |
} |
| 1105 |
if (lst(order).level == 1 && (m = str.match(/\s+$/))) { |
| 1106 |
lst(order).to -= m[0].length; |
| 1107 |
order.push(new BidiSpan(0, len - m[0].length, len)); |
| 1108 |
} |
| 1109 |
} |
| 1110 |
|
| 1111 |
return direction == "rtl" ? order.reverse() : order |
| 1112 |
} |
| 1113 |
})(); |
| 1114 |
|
| 1115 |
// Get the bidi ordering for the given line (and cache it). Returns |
| 1116 |
// false for lines that are fully left-to-right, and an array of |
| 1117 |
// BidiSpan objects otherwise. |
| 1118 |
function getOrder(line, direction) { |
| 1119 |
var order = line.order; |
| 1120 |
if (order == null) { order = line.order = bidiOrdering(line.text, direction); } |
| 1121 |
return order |
| 1122 |
} |
| 1123 |
|
| 1124 |
// EVENT HANDLING |
| 1125 |
|
| 1126 |
// Lightweight event framework. on/off also work on DOM nodes, |
| 1127 |
// registering native DOM handlers. |
| 1128 |
|
| 1129 |
var noHandlers = []; |
| 1130 |
|
| 1131 |
var on = function(emitter, type, f) { |
| 1132 |
if (emitter.addEventListener) { |
| 1133 |
emitter.addEventListener(type, f, false); |
| 1134 |
} else if (emitter.attachEvent) { |
| 1135 |
emitter.attachEvent("on" + type, f); |
| 1136 |
} else { |
| 1137 |
var map$$1 = emitter._handlers || (emitter._handlers = {}); |
| 1138 |
map$$1[type] = (map$$1[type] || noHandlers).concat(f); |
| 1139 |
} |
| 1140 |
}; |
| 1141 |
|
| 1142 |
function getHandlers(emitter, type) { |
| 1143 |
return emitter._handlers && emitter._handlers[type] || noHandlers |
| 1144 |
} |
| 1145 |
|
| 1146 |
function off(emitter, type, f) { |
| 1147 |
if (emitter.removeEventListener) { |
| 1148 |
emitter.removeEventListener(type, f, false); |
| 1149 |
} else if (emitter.detachEvent) { |
| 1150 |
emitter.detachEvent("on" + type, f); |
| 1151 |
} else { |
| 1152 |
var map$$1 = emitter._handlers, arr = map$$1 && map$$1[type]; |
| 1153 |
if (arr) { |
| 1154 |
var index = indexOf(arr, f); |
| 1155 |
if (index > -1) |
| 1156 |
{ map$$1[type] = arr.slice(0, index).concat(arr.slice(index + 1)); } |
| 1157 |
} |
| 1158 |
} |
| 1159 |
} |
| 1160 |
|
| 1161 |
function signal(emitter, type /*, values...*/) { |
| 1162 |
var handlers = getHandlers(emitter, type); |
| 1163 |
if (!handlers.length) { return } |
| 1164 |
var args = Array.prototype.slice.call(arguments, 2); |
| 1165 |
for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); } |
| 1166 |
} |
| 1167 |
|
| 1168 |
// The DOM events that CodeMirror handles can be overridden by |
| 1169 |
// registering a (non-DOM) handler on the editor for the event name, |
| 1170 |
// and preventDefault-ing the event in that handler. |
| 1171 |
function signalDOMEvent(cm, e, override) { |
| 1172 |
if (typeof e == "string") |
| 1173 |
{ e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; } |
| 1174 |
signal(cm, override || e.type, cm, e); |
| 1175 |
return e_defaultPrevented(e) || e.codemirrorIgnore |
| 1176 |
} |
| 1177 |
|
| 1178 |
function signalCursorActivity(cm) { |
| 1179 |
var arr = cm._handlers && cm._handlers.cursorActivity; |
| 1180 |
if (!arr) { return } |
| 1181 |
var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []); |
| 1182 |
for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1) |
| 1183 |
{ set.push(arr[i]); } } |
| 1184 |
} |
| 1185 |
|
| 1186 |
function hasHandler(emitter, type) { |
| 1187 |
return getHandlers(emitter, type).length > 0 |
| 1188 |
} |
| 1189 |
|
| 1190 |
// Add on and off methods to a constructor's prototype, to make |
| 1191 |
// registering events on such objects more convenient. |
| 1192 |
function eventMixin(ctor) { |
| 1193 |
ctor.prototype.on = function(type, f) {on(this, type, f);}; |
| 1194 |
ctor.prototype.off = function(type, f) {off(this, type, f);}; |
| 1195 |
} |
| 1196 |
|
| 1197 |
// Due to the fact that we still support jurassic IE versions, some |
| 1198 |
// compatibility wrappers are needed. |
| 1199 |
|
| 1200 |
function e_preventDefault(e) { |
| 1201 |
if (e.preventDefault) { e.preventDefault(); } |
| 1202 |
else { e.returnValue = false; } |
| 1203 |
} |
| 1204 |
function e_stopPropagation(e) { |
| 1205 |
if (e.stopPropagation) { e.stopPropagation(); } |
| 1206 |
else { e.cancelBubble = true; } |
| 1207 |
} |
| 1208 |
function e_defaultPrevented(e) { |
| 1209 |
return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false |
| 1210 |
} |
| 1211 |
function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);} |
| 1212 |
|
| 1213 |
function e_target(e) {return e.target || e.srcElement} |
| 1214 |
function e_button(e) { |
| 1215 |
var b = e.which; |
| 1216 |
if (b == null) { |
| 1217 |
if (e.button & 1) { b = 1; } |
| 1218 |
else if (e.button & 2) { b = 3; } |
| 1219 |
else if (e.button & 4) { b = 2; } |
| 1220 |
} |
| 1221 |
if (mac && e.ctrlKey && b == 1) { b = 3; } |
| 1222 |
return b |
| 1223 |
} |
| 1224 |
|
| 1225 |
// Detect drag-and-drop |
| 1226 |
var dragAndDrop = function() { |
| 1227 |
// There is *some* kind of drag-and-drop support in IE6-8, but I |
| 1228 |
// couldn't get it to work yet. |
| 1229 |
if (ie && ie_version < 9) { return false } |
| 1230 |
var div = elt('div'); |
| 1231 |
return "draggable" in div || "dragDrop" in div |
| 1232 |
}(); |
| 1233 |
|
| 1234 |
var zwspSupported; |
| 1235 |
function zeroWidthElement(measure) { |
| 1236 |
if (zwspSupported == null) { |
| 1237 |
var test = elt("span", "\u200b"); |
| 1238 |
removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")])); |
| 1239 |
if (measure.firstChild.offsetHeight != 0) |
| 1240 |
{ zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); } |
| 1241 |
} |
| 1242 |
var node = zwspSupported ? elt("span", "\u200b") : |
| 1243 |
elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px"); |
| 1244 |
node.setAttribute("cm-text", ""); |
| 1245 |
return node |
| 1246 |
} |
| 1247 |
|
| 1248 |
// Feature-detect IE's crummy client rect reporting for bidi text |
| 1249 |
var badBidiRects; |
| 1250 |
function hasBadBidiRects(measure) { |
| 1251 |
if (badBidiRects != null) { return badBidiRects } |
| 1252 |
var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA")); |
| 1253 |
var r0 = range(txt, 0, 1).getBoundingClientRect(); |
| 1254 |
var r1 = range(txt, 1, 2).getBoundingClientRect(); |
| 1255 |
removeChildren(measure); |
| 1256 |
if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780) |
| 1257 |
return badBidiRects = (r1.right - r0.right < 3) |
| 1258 |
} |
| 1259 |
|
| 1260 |
// See if "".split is the broken IE version, if so, provide an |
| 1261 |
// alternative way to split lines. |
| 1262 |
var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) { |
| 1263 |
var pos = 0, result = [], l = string.length; |
| 1264 |
while (pos <= l) { |
| 1265 |
var nl = string.indexOf("\n", pos); |
| 1266 |
if (nl == -1) { nl = string.length; } |
| 1267 |
var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl); |
| 1268 |
var rt = line.indexOf("\r"); |
| 1269 |
if (rt != -1) { |
| 1270 |
result.push(line.slice(0, rt)); |
| 1271 |
pos += rt + 1; |
| 1272 |
} else { |
| 1273 |
result.push(line); |
| 1274 |
pos = nl + 1; |
| 1275 |
} |
| 1276 |
} |
| 1277 |
return result |
| 1278 |
} : function (string) { return string.split(/\r\n?|\n/); }; |
| 1279 |
|
| 1280 |
var hasSelection = window.getSelection ? function (te) { |
| 1281 |
try { return te.selectionStart != te.selectionEnd } |
| 1282 |
catch(e) { return false } |
| 1283 |
} : function (te) { |
| 1284 |
var range$$1; |
| 1285 |
try {range$$1 = te.ownerDocument.selection.createRange();} |
| 1286 |
catch(e) {} |
| 1287 |
if (!range$$1 || range$$1.parentElement() != te) { return false } |
| 1288 |
return range$$1.compareEndPoints("StartToEnd", range$$1) != 0 |
| 1289 |
}; |
| 1290 |
|
| 1291 |
var hasCopyEvent = (function () { |
| 1292 |
var e = elt("div"); |
| 1293 |
if ("oncopy" in e) { return true } |
| 1294 |
e.setAttribute("oncopy", "return;"); |
| 1295 |
return typeof e.oncopy == "function" |
| 1296 |
})(); |
| 1297 |
|
| 1298 |
var badZoomedRects = null; |
| 1299 |
function hasBadZoomedRects(measure) { |
| 1300 |
if (badZoomedRects != null) { return badZoomedRects } |
| 1301 |
var node = removeChildrenAndAdd(measure, elt("span", "x")); |
| 1302 |
var normal = node.getBoundingClientRect(); |
| 1303 |
var fromRange = range(node, 0, 1).getBoundingClientRect(); |
| 1304 |
return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1 |
| 1305 |
} |
| 1306 |
|
| 1307 |
// Known modes, by name and by MIME |
| 1308 |
var modes = {}, mimeModes = {}; |
| 1309 |
|
| 1310 |
// Extra arguments are stored as the mode's dependencies, which is |
| 1311 |
// used by (legacy) mechanisms like loadmode.js to automatically |
| 1312 |
// load a mode. (Preferred mechanism is the require/define calls.) |
| 1313 |
function defineMode(name, mode) { |
| 1314 |
if (arguments.length > 2) |
| 1315 |
{ mode.dependencies = Array.prototype.slice.call(arguments, 2); } |
| 1316 |
modes[name] = mode; |
| 1317 |
} |
| 1318 |
|
| 1319 |
function defineMIME(mime, spec) { |
| 1320 |
mimeModes[mime] = spec; |
| 1321 |
} |
| 1322 |
|
| 1323 |
// Given a MIME type, a {name, ...options} config object, or a name |
| 1324 |
// string, return a mode config object. |
| 1325 |
function resolveMode(spec) { |
| 1326 |
if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) { |
| 1327 |
spec = mimeModes[spec]; |
| 1328 |
} else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) { |
| 1329 |
var found = mimeModes[spec.name]; |
| 1330 |
if (typeof found == "string") { found = {name: found}; } |
| 1331 |
spec = createObj(found, spec); |
| 1332 |
spec.name = found.name; |
| 1333 |
} else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) { |
| 1334 |
return resolveMode("application/xml") |
| 1335 |
} else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) { |
| 1336 |
return resolveMode("application/json") |
| 1337 |
} |
| 1338 |
if (typeof spec == "string") { return {name: spec} } |
| 1339 |
else { return spec || {name: "null"} } |
| 1340 |
} |
| 1341 |
|
| 1342 |
// Given a mode spec (anything that resolveMode accepts), find and |
| 1343 |
// initialize an actual mode object. |
| 1344 |
function getMode(options, spec) { |
| 1345 |
spec = resolveMode(spec); |
| 1346 |
var mfactory = modes[spec.name]; |
| 1347 |
if (!mfactory) { return getMode(options, "text/plain") } |
| 1348 |
var modeObj = mfactory(options, spec); |
| 1349 |
if (modeExtensions.hasOwnProperty(spec.name)) { |
| 1350 |
var exts = modeExtensions[spec.name]; |
| 1351 |
for (var prop in exts) { |
| 1352 |
if (!exts.hasOwnProperty(prop)) { continue } |
| 1353 |
if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; } |
| 1354 |
modeObj[prop] = exts[prop]; |
| 1355 |
} |
| 1356 |
} |
| 1357 |
modeObj.name = spec.name; |
| 1358 |
if (spec.helperType) { modeObj.helperType = spec.helperType; } |
| 1359 |
if (spec.modeProps) { for (var prop$1 in spec.modeProps) |
| 1360 |
{ modeObj[prop$1] = spec.modeProps[prop$1]; } } |
| 1361 |
|
| 1362 |
return modeObj |
| 1363 |
} |
| 1364 |
|
| 1365 |
// This can be used to attach properties to mode objects from |
| 1366 |
// outside the actual mode definition. |
| 1367 |
var modeExtensions = {}; |
| 1368 |
function extendMode(mode, properties) { |
| 1369 |
var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {}); |
| 1370 |
copyObj(properties, exts); |
| 1371 |
} |
| 1372 |
|
| 1373 |
function copyState(mode, state) { |
| 1374 |
if (state === true) { return state } |
| 1375 |
if (mode.copyState) { return mode.copyState(state) } |
| 1376 |
var nstate = {}; |
| 1377 |
for (var n in state) { |
| 1378 |
var val = state[n]; |
| 1379 |
if (val instanceof Array) { val = val.concat([]); } |
| 1380 |
nstate[n] = val; |
| 1381 |
} |
| 1382 |
return nstate |
| 1383 |
} |
| 1384 |
|
| 1385 |
// Given a mode and a state (for that mode), find the inner mode and |
| 1386 |
// state at the position that the state refers to. |
| 1387 |
function innerMode(mode, state) { |
| 1388 |
var info; |
| 1389 |
while (mode.innerMode) { |
| 1390 |
info = mode.innerMode(state); |
| 1391 |
if (!info || info.mode == mode) { break } |
| 1392 |
state = info.state; |
| 1393 |
mode = info.mode; |
| 1394 |
} |
| 1395 |
return info || {mode: mode, state: state} |
| 1396 |
} |
| 1397 |
|
| 1398 |
function startState(mode, a1, a2) { |
| 1399 |
return mode.startState ? mode.startState(a1, a2) : true |
| 1400 |
} |
| 1401 |
|
| 1402 |
// STRING STREAM |
| 1403 |
|
| 1404 |
// Fed to the mode parsers, provides helper functions to make |
| 1405 |
// parsers more succinct. |
| 1406 |
|
| 1407 |
var StringStream = function(string, tabSize, lineOracle) { |
| 1408 |
this.pos = this.start = 0; |
| 1409 |
this.string = string; |
| 1410 |
this.tabSize = tabSize || 8; |
| 1411 |
this.lastColumnPos = this.lastColumnValue = 0; |
| 1412 |
this.lineStart = 0; |
| 1413 |
this.lineOracle = lineOracle; |
| 1414 |
}; |
| 1415 |
|
| 1416 |
StringStream.prototype.eol = function () {return this.pos >= this.string.length}; |
| 1417 |
StringStream.prototype.sol = function () {return this.pos == this.lineStart}; |
| 1418 |
StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined}; |
| 1419 |
StringStream.prototype.next = function () { |
| 1420 |
if (this.pos < this.string.length) |
| 1421 |
{ return this.string.charAt(this.pos++) } |
| 1422 |
}; |
| 1423 |
StringStream.prototype.eat = function (match) { |
| 1424 |
var ch = this.string.charAt(this.pos); |
| 1425 |
var ok; |
| 1426 |
if (typeof match == "string") { ok = ch == match; } |
| 1427 |
else { ok = ch && (match.test ? match.test(ch) : match(ch)); } |
| 1428 |
if (ok) {++this.pos; return ch} |
| 1429 |
}; |
| 1430 |
StringStream.prototype.eatWhile = function (match) { |
| 1431 |
var start = this.pos; |
| 1432 |
while (this.eat(match)){} |
| 1433 |
return this.pos > start |
| 1434 |
}; |
| 1435 |
StringStream.prototype.eatSpace = function () { |
| 1436 |
var this$1 = this; |
| 1437 |
|
| 1438 |
var start = this.pos; |
| 1439 |
while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this$1.pos; } |
| 1440 |
return this.pos > start |
| 1441 |
}; |
| 1442 |
StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;}; |
| 1443 |
StringStream.prototype.skipTo = function (ch) { |
| 1444 |
var found = this.string.indexOf(ch, this.pos); |
| 1445 |
if (found > -1) {this.pos = found; return true} |
| 1446 |
}; |
| 1447 |
StringStream.prototype.backUp = function (n) {this.pos -= n;}; |
| 1448 |
StringStream.prototype.column = function () { |
| 1449 |
if (this.lastColumnPos < this.start) { |
| 1450 |
this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue); |
| 1451 |
this.lastColumnPos = this.start; |
| 1452 |
} |
| 1453 |
return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0) |
| 1454 |
}; |
| 1455 |
StringStream.prototype.indentation = function () { |
| 1456 |
return countColumn(this.string, null, this.tabSize) - |
| 1457 |
(this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0) |
| 1458 |
}; |
| 1459 |
StringStream.prototype.match = function (pattern, consume, caseInsensitive) { |
| 1460 |
if (typeof pattern == "string") { |
| 1461 |
var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; }; |
| 1462 |
var substr = this.string.substr(this.pos, pattern.length); |
| 1463 |
if (cased(substr) == cased(pattern)) { |
| 1464 |
if (consume !== false) { this.pos += pattern.length; } |
| 1465 |
return true |
| 1466 |
} |
| 1467 |
} else { |
| 1468 |
var match = this.string.slice(this.pos).match(pattern); |
| 1469 |
if (match && match.index > 0) { return null } |
| 1470 |
if (match && consume !== false) { this.pos += match[0].length; } |
| 1471 |
return match |
| 1472 |
} |
| 1473 |
}; |
| 1474 |
StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)}; |
| 1475 |
StringStream.prototype.hideFirstChars = function (n, inner) { |
| 1476 |
this.lineStart += n; |
| 1477 |
try { return inner() } |
| 1478 |
finally { this.lineStart -= n; } |
| 1479 |
}; |
| 1480 |
StringStream.prototype.lookAhead = function (n) { |
| 1481 |
var oracle = this.lineOracle; |
| 1482 |
return oracle && oracle.lookAhead(n) |
| 1483 |
}; |
| 1484 |
StringStream.prototype.baseToken = function () { |
| 1485 |
var oracle = this.lineOracle; |
| 1486 |
return oracle && oracle.baseToken(this.pos) |
| 1487 |
}; |
| 1488 |
|
| 1489 |
var SavedContext = function(state, lookAhead) { |
| 1490 |
this.state = state; |
| 1491 |
this.lookAhead = lookAhead; |
| 1492 |
}; |
| 1493 |
|
| 1494 |
var Context = function(doc, state, line, lookAhead) { |
| 1495 |
this.state = state; |
| 1496 |
this.doc = doc; |
| 1497 |
this.line = line; |
| 1498 |
this.maxLookAhead = lookAhead || 0; |
| 1499 |
this.baseTokens = null; |
| 1500 |
this.baseTokenPos = 1; |
| 1501 |
}; |
| 1502 |
|
| 1503 |
Context.prototype.lookAhead = function (n) { |
| 1504 |
var line = this.doc.getLine(this.line + n); |
| 1505 |
if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; } |
| 1506 |
return line |
| 1507 |
}; |
| 1508 |
|
| 1509 |
Context.prototype.baseToken = function (n) { |
| 1510 |
var this$1 = this; |
| 1511 |
|
| 1512 |
if (!this.baseTokens) { return null } |
| 1513 |
while (this.baseTokens[this.baseTokenPos] <= n) |
| 1514 |
{ this$1.baseTokenPos += 2; } |
| 1515 |
var type = this.baseTokens[this.baseTokenPos + 1]; |
| 1516 |
return {type: type && type.replace(/( |^)overlay .*/, ""), |
| 1517 |
size: this.baseTokens[this.baseTokenPos] - n} |
| 1518 |
}; |
| 1519 |
|
| 1520 |
Context.prototype.nextLine = function () { |
| 1521 |
this.line++; |
| 1522 |
if (this.maxLookAhead > 0) { this.maxLookAhead--; } |
| 1523 |
}; |
| 1524 |
|
| 1525 |
Context.fromSaved = function (doc, saved, line) { |
| 1526 |
if (saved instanceof SavedContext) |
| 1527 |
{ return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) } |
| 1528 |
else |
| 1529 |
{ return new Context(doc, copyState(doc.mode, saved), line) } |
| 1530 |
}; |
| 1531 |
|
| 1532 |
Context.prototype.save = function (copy) { |
| 1533 |
var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state; |
| 1534 |
return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state |
| 1535 |
}; |
| 1536 |
|
| 1537 |
|
| 1538 |
// Compute a style array (an array starting with a mode generation |
| 1539 |
// -- for invalidation -- followed by pairs of end positions and |
| 1540 |
// style strings), which is used to highlight the tokens on the |
| 1541 |
// line. |
| 1542 |
function highlightLine(cm, line, context, forceToEnd) { |
| 1543 |
// A styles array always starts with a number identifying the |
| 1544 |
// mode/overlays that it is based on (for easy invalidation). |
| 1545 |
var st = [cm.state.modeGen], lineClasses = {}; |
| 1546 |
// Compute the base array of styles |
| 1547 |
runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); }, |
| 1548 |
lineClasses, forceToEnd); |
| 1549 |
var state = context.state; |
| 1550 |
|
| 1551 |
// Run overlays, adjust style array. |
| 1552 |
var loop = function ( o ) { |
| 1553 |
context.baseTokens = st; |
| 1554 |
var overlay = cm.state.overlays[o], i = 1, at = 0; |
| 1555 |
context.state = true; |
| 1556 |
runMode(cm, line.text, overlay.mode, context, function (end, style) { |
| 1557 |
var start = i; |
| 1558 |
// Ensure there's a token end at the current position, and that i points at it |
| 1559 |
while (at < end) { |
| 1560 |
var i_end = st[i]; |
| 1561 |
if (i_end > end) |
| 1562 |
{ st.splice(i, 1, end, st[i+1], i_end); } |
| 1563 |
i += 2; |
| 1564 |
at = Math.min(end, i_end); |
| 1565 |
} |
| 1566 |
if (!style) { return } |
| 1567 |
if (overlay.opaque) { |
| 1568 |
st.splice(start, i - start, end, "overlay " + style); |
| 1569 |
i = start + 2; |
| 1570 |
} else { |
| 1571 |
for (; start < i; start += 2) { |
| 1572 |
var cur = st[start+1]; |
| 1573 |
st[start+1] = (cur ? cur + " " : "") + "overlay " + style; |
| 1574 |
} |
| 1575 |
} |
| 1576 |
}, lineClasses); |
| 1577 |
context.state = state; |
| 1578 |
context.baseTokens = null; |
| 1579 |
context.baseTokenPos = 1; |
| 1580 |
}; |
| 1581 |
|
| 1582 |
for (var o = 0; o < cm.state.overlays.length; ++o) loop( o ); |
| 1583 |
|
| 1584 |
return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null} |
| 1585 |
} |
| 1586 |
|
| 1587 |
function getLineStyles(cm, line, updateFrontier) { |
| 1588 |
if (!line.styles || line.styles[0] != cm.state.modeGen) { |
| 1589 |
var context = getContextBefore(cm, lineNo(line)); |
| 1590 |
var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state); |
| 1591 |
var result = highlightLine(cm, line, context); |
| 1592 |
if (resetState) { context.state = resetState; } |
| 1593 |
line.stateAfter = context.save(!resetState); |
| 1594 |
line.styles = result.styles; |
| 1595 |
if (result.classes) { line.styleClasses = result.classes; } |
| 1596 |
else if (line.styleClasses) { line.styleClasses = null; } |
| 1597 |
if (updateFrontier === cm.doc.highlightFrontier) |
| 1598 |
{ cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); } |
| 1599 |
} |
| 1600 |
return line.styles |
| 1601 |
} |
| 1602 |
|
| 1603 |
function getContextBefore(cm, n, precise) { |
| 1604 |
var doc = cm.doc, display = cm.display; |
| 1605 |
if (!doc.mode.startState) { return new Context(doc, true, n) } |
| 1606 |
var start = findStartLine(cm, n, precise); |
| 1607 |
var saved = start > doc.first && getLine(doc, start - 1).stateAfter; |
| 1608 |
var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start); |
| 1609 |
|
| 1610 |
doc.iter(start, n, function (line) { |
| 1611 |
processLine(cm, line.text, context); |
| 1612 |
var pos = context.line; |
| 1613 |
line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null; |
| 1614 |
context.nextLine(); |
| 1615 |
}); |
| 1616 |
if (precise) { doc.modeFrontier = context.line; } |
| 1617 |
return context |
| 1618 |
} |
| 1619 |
|
| 1620 |
// Lightweight form of highlight -- proceed over this line and |
| 1621 |
// update state, but don't save a style array. Used for lines that |
| 1622 |
// aren't currently visible. |
| 1623 |
function processLine(cm, text, context, startAt) { |
| 1624 |
var mode = cm.doc.mode; |
| 1625 |
var stream = new StringStream(text, cm.options.tabSize, context); |
| 1626 |
stream.start = stream.pos = startAt || 0; |
| 1627 |
if (text == "") { callBlankLine(mode, context.state); } |
| 1628 |
while (!stream.eol()) { |
| 1629 |
readToken(mode, stream, context.state); |
| 1630 |
stream.start = stream.pos; |
| 1631 |
} |
| 1632 |
} |
| 1633 |
|
| 1634 |
function callBlankLine(mode, state) { |
| 1635 |
if (mode.blankLine) { return mode.blankLine(state) } |
| 1636 |
if (!mode.innerMode) { return } |
| 1637 |
var inner = innerMode(mode, state); |
| 1638 |
if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) } |
| 1639 |
} |
| 1640 |
|
| 1641 |
function readToken(mode, stream, state, inner) { |
| 1642 |
for (var i = 0; i < 10; i++) { |
| 1643 |
if (inner) { inner[0] = innerMode(mode, state).mode; } |
| 1644 |
var style = mode.token(stream, state); |
| 1645 |
if (stream.pos > stream.start) { return style } |
| 1646 |
} |
| 1647 |
throw new Error("Mode " + mode.name + " failed to advance stream.") |
| 1648 |
} |
| 1649 |
|
| 1650 |
var Token = function(stream, type, state) { |
| 1651 |
this.start = stream.start; this.end = stream.pos; |
| 1652 |
this.string = stream.current(); |
| 1653 |
this.type = type || null; |
| 1654 |
this.state = state; |
| 1655 |
}; |
| 1656 |
|
| 1657 |
// Utility for getTokenAt and getLineTokens |
| 1658 |
function takeToken(cm, pos, precise, asArray) { |
| 1659 |
var doc = cm.doc, mode = doc.mode, style; |
| 1660 |
pos = clipPos(doc, pos); |
| 1661 |
var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise); |
| 1662 |
var stream = new StringStream(line.text, cm.options.tabSize, context), tokens; |
| 1663 |
if (asArray) { tokens = []; } |
| 1664 |
while ((asArray || stream.pos < pos.ch) && !stream.eol()) { |
| 1665 |
stream.start = stream.pos; |
| 1666 |
style = readToken(mode, stream, context.state); |
| 1667 |
if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); } |
| 1668 |
} |
| 1669 |
return asArray ? tokens : new Token(stream, style, context.state) |
| 1670 |
} |
| 1671 |
|
| 1672 |
function extractLineClasses(type, output) { |
| 1673 |
if (type) { for (;;) { |
| 1674 |
var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/); |
| 1675 |
if (!lineClass) { break } |
| 1676 |
type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length); |
| 1677 |
var prop = lineClass[1] ? "bgClass" : "textClass"; |
| 1678 |
if (output[prop] == null) |
| 1679 |
{ output[prop] = lineClass[2]; } |
| 1680 |
else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop])) |
| 1681 |
{ output[prop] += " " + lineClass[2]; } |
| 1682 |
} } |
| 1683 |
return type |
| 1684 |
} |
| 1685 |
|
| 1686 |
// Run the given mode's parser over a line, calling f for each token. |
| 1687 |
function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) { |
| 1688 |
var flattenSpans = mode.flattenSpans; |
| 1689 |
if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; } |
| 1690 |
var curStart = 0, curStyle = null; |
| 1691 |
var stream = new StringStream(text, cm.options.tabSize, context), style; |
| 1692 |
var inner = cm.options.addModeClass && [null]; |
| 1693 |
if (text == "") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); } |
| 1694 |
while (!stream.eol()) { |
| 1695 |
if (stream.pos > cm.options.maxHighlightLength) { |
| 1696 |
flattenSpans = false; |
| 1697 |
if (forceToEnd) { processLine(cm, text, context, stream.pos); } |
| 1698 |
stream.pos = text.length; |
| 1699 |
style = null; |
| 1700 |
} else { |
| 1701 |
style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses); |
| 1702 |
} |
| 1703 |
if (inner) { |
| 1704 |
var mName = inner[0].name; |
| 1705 |
if (mName) { style = "m-" + (style ? mName + " " + style : mName); } |
| 1706 |
} |
| 1707 |
if (!flattenSpans || curStyle != style) { |
| 1708 |
while (curStart < stream.start) { |
| 1709 |
curStart = Math.min(stream.start, curStart + 5000); |
| 1710 |
f(curStart, curStyle); |
| 1711 |
} |
| 1712 |
curStyle = style; |
| 1713 |
} |
| 1714 |
stream.start = stream.pos; |
| 1715 |
} |
| 1716 |
while (curStart < stream.pos) { |
| 1717 |
// Webkit seems to refuse to render text nodes longer than 57444 |
| 1718 |
// characters, and returns inaccurate measurements in nodes |
| 1719 |
// starting around 5000 chars. |
| 1720 |
var pos = Math.min(stream.pos, curStart + 5000); |
| 1721 |
f(pos, curStyle); |
| 1722 |
curStart = pos; |
| 1723 |
} |
| 1724 |
} |
| 1725 |
|
| 1726 |
// Finds the line to start with when starting a parse. Tries to |
| 1727 |
// find a line with a stateAfter, so that it can start with a |
| 1728 |
// valid state. If that fails, it returns the line with the |
| 1729 |
// smallest indentation, which tends to need the least context to |
| 1730 |
// parse correctly. |
| 1731 |
function findStartLine(cm, n, precise) { |
| 1732 |
var minindent, minline, doc = cm.doc; |
| 1733 |
var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100); |
| 1734 |
for (var search = n; search > lim; --search) { |
| 1735 |
if (search <= doc.first) { return doc.first } |
| 1736 |
var line = getLine(doc, search - 1), after = line.stateAfter; |
| 1737 |
if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier)) |
| 1738 |
{ return search } |
| 1739 |
var indented = countColumn(line.text, null, cm.options.tabSize); |
| 1740 |
if (minline == null || minindent > indented) { |
| 1741 |
minline = search - 1; |
| 1742 |
minindent = indented; |
| 1743 |
} |
| 1744 |
} |
| 1745 |
return minline |
| 1746 |
} |
| 1747 |
|
| 1748 |
function retreatFrontier(doc, n) { |
| 1749 |
doc.modeFrontier = Math.min(doc.modeFrontier, n); |
| 1750 |
if (doc.highlightFrontier < n - 10) { return } |
| 1751 |
var start = doc.first; |
| 1752 |
for (var line = n - 1; line > start; line--) { |
| 1753 |
var saved = getLine(doc, line).stateAfter; |
| 1754 |
// change is on 3 |
| 1755 |
// state on line 1 looked ahead 2 -- so saw 3 |
| 1756 |
// test 1 + 2 < 3 should cover this |
| 1757 |
if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) { |
| 1758 |
start = line + 1; |
| 1759 |
break |
| 1760 |
} |
| 1761 |
} |
| 1762 |
doc.highlightFrontier = Math.min(doc.highlightFrontier, start); |
| 1763 |
} |
| 1764 |
|
| 1765 |
// LINE DATA STRUCTURE |
| 1766 |
|
| 1767 |
// Line objects. These hold state related to a line, including |
| 1768 |
// highlighting info (the styles array). |
| 1769 |
var Line = function(text, markedSpans, estimateHeight) { |
| 1770 |
this.text = text; |
| 1771 |
attachMarkedSpans(this, markedSpans); |
| 1772 |
this.height = estimateHeight ? estimateHeight(this) : 1; |
| 1773 |
}; |
| 1774 |
|
| 1775 |
Line.prototype.lineNo = function () { return lineNo(this) }; |
| 1776 |
eventMixin(Line); |
| 1777 |
|
| 1778 |
// Change the content (text, markers) of a line. Automatically |
| 1779 |
// invalidates cached information and tries to re-estimate the |
| 1780 |
// line's height. |
| 1781 |
function updateLine(line, text, markedSpans, estimateHeight) { |
| 1782 |
line.text = text; |
| 1783 |
if (line.stateAfter) { line.stateAfter = null; } |
| 1784 |
if (line.styles) { line.styles = null; } |
| 1785 |
if (line.order != null) { line.order = null; } |
| 1786 |
detachMarkedSpans(line); |
| 1787 |
attachMarkedSpans(line, markedSpans); |
| 1788 |
var estHeight = estimateHeight ? estimateHeight(line) : 1; |
| 1789 |
if (estHeight != line.height) { updateLineHeight(line, estHeight); } |
| 1790 |
} |
| 1791 |
|
| 1792 |
// Detach a line from the document tree and its markers. |
| 1793 |
function cleanUpLine(line) { |
| 1794 |
line.parent = null; |
| 1795 |
detachMarkedSpans(line); |
| 1796 |
} |
| 1797 |
|
| 1798 |
// Convert a style as returned by a mode (either null, or a string |
| 1799 |
// containing one or more styles) to a CSS style. This is cached, |
| 1800 |
// and also looks for line-wide styles. |
| 1801 |
var styleToClassCache = {}, styleToClassCacheWithMode = {}; |
| 1802 |
function interpretTokenStyle(style, options) { |
| 1803 |
if (!style || /^\s*$/.test(style)) { return null } |
| 1804 |
var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache; |
| 1805 |
return cache[style] || |
| 1806 |
(cache[style] = style.replace(/\S+/g, "cm-$&")) |
| 1807 |
} |
| 1808 |
|
| 1809 |
// Render the DOM representation of the text of a line. Also builds |
| 1810 |
// up a 'line map', which points at the DOM nodes that represent |
| 1811 |
// specific stretches of text, and is used by the measuring code. |
| 1812 |
// The returned object contains the DOM node, this map, and |
| 1813 |
// information about line-wide styles that were set by the mode. |
| 1814 |
function buildLineContent(cm, lineView) { |
| 1815 |
// The padding-right forces the element to have a 'border', which |
| 1816 |
// is needed on Webkit to be able to get line-level bounding |
| 1817 |
// rectangles for it (in measureChar). |
| 1818 |
var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null); |
| 1819 |
var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content, |
| 1820 |
col: 0, pos: 0, cm: cm, |
| 1821 |
trailingSpace: false, |
| 1822 |
splitSpaces: cm.getOption("lineWrapping")}; |
| 1823 |
lineView.measure = {}; |
| 1824 |
|
| 1825 |
// Iterate over the logical lines that make up this visual line. |
| 1826 |
for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) { |
| 1827 |
var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0); |
| 1828 |
builder.pos = 0; |
| 1829 |
builder.addToken = buildToken; |
| 1830 |
// Optionally wire in some hacks into the token-rendering |
| 1831 |
// algorithm, to deal with browser quirks. |
| 1832 |
if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction))) |
| 1833 |
{ builder.addToken = buildTokenBadBidi(builder.addToken, order); } |
| 1834 |
builder.map = []; |
| 1835 |
var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line); |
| 1836 |
insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate)); |
| 1837 |
if (line.styleClasses) { |
| 1838 |
if (line.styleClasses.bgClass) |
| 1839 |
{ builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); } |
| 1840 |
if (line.styleClasses.textClass) |
| 1841 |
{ builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); } |
| 1842 |
} |
| 1843 |
|
| 1844 |
// Ensure at least a single node is present, for measuring. |
| 1845 |
if (builder.map.length == 0) |
| 1846 |
{ builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); } |
| 1847 |
|
| 1848 |
// Store the map and a cache object for the current logical line |
| 1849 |
if (i == 0) { |
| 1850 |
lineView.measure.map = builder.map; |
| 1851 |
lineView.measure.cache = {}; |
| 1852 |
} else { |
| 1853 |
(lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map) |
| 1854 |
;(lineView.measure.caches || (lineView.measure.caches = [])).push({}); |
| 1855 |
} |
| 1856 |
} |
| 1857 |
|
| 1858 |
// See issue #2901 |
| 1859 |
if (webkit) { |
| 1860 |
var last = builder.content.lastChild; |
| 1861 |
if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab"))) |
| 1862 |
{ builder.content.className = "cm-tab-wrap-hack"; } |
| 1863 |
} |
| 1864 |
|
| 1865 |
signal(cm, "renderLine", cm, lineView.line, builder.pre); |
| 1866 |
if (builder.pre.className) |
| 1867 |
{ builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); } |
| 1868 |
|
| 1869 |
return builder |
| 1870 |
} |
| 1871 |
|
| 1872 |
function defaultSpecialCharPlaceholder(ch) { |
| 1873 |
var token = elt("span", "\u2022", "cm-invalidchar"); |
| 1874 |
token.title = "\\u" + ch.charCodeAt(0).toString(16); |
| 1875 |
token.setAttribute("aria-label", token.title); |
| 1876 |
return token |
| 1877 |
} |
| 1878 |
|
| 1879 |
// Build up the DOM representation for a single token, and add it to |
| 1880 |
// the line map. Takes care to render special characters separately. |
| 1881 |
function buildToken(builder, text, style, startStyle, endStyle, css, attributes) { |
| 1882 |
if (!text) { return } |
| 1883 |
var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text; |
| 1884 |
var special = builder.cm.state.specialChars, mustWrap = false; |
| 1885 |
var content; |
| 1886 |
if (!special.test(text)) { |
| 1887 |
builder.col += text.length; |
| 1888 |
content = document.createTextNode(displayText); |
| 1889 |
builder.map.push(builder.pos, builder.pos + text.length, content); |
| 1890 |
if (ie && ie_version < 9) { mustWrap = true; } |
| 1891 |
builder.pos += text.length; |
| 1892 |
} else { |
| 1893 |
content = document.createDocumentFragment(); |
| 1894 |
var pos = 0; |
| 1895 |
while (true) { |
| 1896 |
special.lastIndex = pos; |
| 1897 |
var m = special.exec(text); |
| 1898 |
var skipped = m ? m.index - pos : text.length - pos; |
| 1899 |
if (skipped) { |
| 1900 |
var txt = document.createTextNode(displayText.slice(pos, pos + skipped)); |
| 1901 |
if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])); } |
| 1902 |
else { content.appendChild(txt); } |
| 1903 |
builder.map.push(builder.pos, builder.pos + skipped, txt); |
| 1904 |
builder.col += skipped; |
| 1905 |
builder.pos += skipped; |
| 1906 |
} |
| 1907 |
if (!m) { break } |
| 1908 |
pos += skipped + 1; |
| 1909 |
var txt$1 = (void 0); |
| 1910 |
if (m[0] == "\t") { |
| 1911 |
var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize; |
| 1912 |
txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab")); |
| 1913 |
txt$1.setAttribute("role", "presentation"); |
| 1914 |
txt$1.setAttribute("cm-text", "\t"); |
| 1915 |
builder.col += tabWidth; |
| 1916 |
} else if (m[0] == "\r" || m[0] == "\n") { |
| 1917 |
txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar")); |
| 1918 |
txt$1.setAttribute("cm-text", m[0]); |
| 1919 |
builder.col += 1; |
| 1920 |
} else { |
| 1921 |
txt$1 = builder.cm.options.specialCharPlaceholder(m[0]); |
| 1922 |
txt$1.setAttribute("cm-text", m[0]); |
| 1923 |
if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])); } |
| 1924 |
else { content.appendChild(txt$1); } |
| 1925 |
builder.col += 1; |
| 1926 |
} |
| 1927 |
builder.map.push(builder.pos, builder.pos + 1, txt$1); |
| 1928 |
builder.pos++; |
| 1929 |
} |
| 1930 |
} |
| 1931 |
builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32; |
| 1932 |
if (style || startStyle || endStyle || mustWrap || css) { |
| 1933 |
var fullStyle = style || ""; |
| 1934 |
if (startStyle) { fullStyle += startStyle; } |
| 1935 |
if (endStyle) { fullStyle += endStyle; } |
| 1936 |
var token = elt("span", [content], fullStyle, css); |
| 1937 |
if (attributes) { |
| 1938 |
for (var attr in attributes) { if (attributes.hasOwnProperty(attr) && attr != "style" && attr != "class") |
| 1939 |
{ token.setAttribute(attr, attributes[attr]); } } |
| 1940 |
} |
| 1941 |
return builder.content.appendChild(token) |
| 1942 |
} |
| 1943 |
builder.content.appendChild(content); |
| 1944 |
} |
| 1945 |
|
| 1946 |
// Change some spaces to NBSP to prevent the browser from collapsing |
| 1947 |
// trailing spaces at the end of a line when rendering text (issue #1362). |
| 1948 |
function splitSpaces(text, trailingBefore) { |
| 1949 |
if (text.length > 1 && !/ /.test(text)) { return text } |
| 1950 |
var spaceBefore = trailingBefore, result = ""; |
| 1951 |
for (var i = 0; i < text.length; i++) { |
| 1952 |
var ch = text.charAt(i); |
| 1953 |
if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32)) |
| 1954 |
{ ch = "\u00a0"; } |
| 1955 |
result += ch; |
| 1956 |
spaceBefore = ch == " "; |
| 1957 |
} |
| 1958 |
return result |
| 1959 |
} |
| 1960 |
|
| 1961 |
// Work around nonsense dimensions being reported for stretches of |
| 1962 |
// right-to-left text. |
| 1963 |
function buildTokenBadBidi(inner, order) { |
| 1964 |
return function (builder, text, style, startStyle, endStyle, css, attributes) { |
| 1965 |
style = style ? style + " cm-force-border" : "cm-force-border"; |
| 1966 |
var start = builder.pos, end = start + text.length; |
| 1967 |
for (;;) { |
| 1968 |
// Find the part that overlaps with the start of this text |
| 1969 |
var part = (void 0); |
| 1970 |
for (var i = 0; i < order.length; i++) { |
| 1971 |
part = order[i]; |
| 1972 |
if (part.to > start && part.from <= start) { break } |
| 1973 |
} |
| 1974 |
if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, css, attributes) } |
| 1975 |
inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes); |
| 1976 |
startStyle = null; |
| 1977 |
text = text.slice(part.to - start); |
| 1978 |
start = part.to; |
| 1979 |
} |
| 1980 |
} |
| 1981 |
} |
| 1982 |
|
| 1983 |
function buildCollapsedSpan(builder, size, marker, ignoreWidget) { |
| 1984 |
var widget = !ignoreWidget && marker.widgetNode; |
| 1985 |
if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); } |
| 1986 |
if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) { |
| 1987 |
if (!widget) |
| 1988 |
{ widget = builder.content.appendChild(document.createElement("span")); } |
| 1989 |
widget.setAttribute("cm-marker", marker.id); |
| 1990 |
} |
| 1991 |
if (widget) { |
| 1992 |
builder.cm.display.input.setUneditable(widget); |
| 1993 |
builder.content.appendChild(widget); |
| 1994 |
} |
| 1995 |
builder.pos += size; |
| 1996 |
builder.trailingSpace = false; |
| 1997 |
} |
| 1998 |
|
| 1999 |
// Outputs a number of spans to make up a line, taking highlighting |
| 2000 |
// and marked text into account. |
| 2001 |
function insertLineContent(line, builder, styles) { |
| 2002 |
var spans = line.markedSpans, allText = line.text, at = 0; |
| 2003 |
if (!spans) { |
| 2004 |
for (var i$1 = 1; i$1 < styles.length; i$1+=2) |
| 2005 |
{ builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); } |
| 2006 |
return |
| 2007 |
} |
| 2008 |
|
| 2009 |
var len = allText.length, pos = 0, i = 1, text = "", style, css; |
| 2010 |
var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed, attributes; |
| 2011 |
for (;;) { |
| 2012 |
if (nextChange == pos) { // Update current marker set |
| 2013 |
spanStyle = spanEndStyle = spanStartStyle = css = ""; |
| 2014 |
attributes = null; |
| 2015 |
collapsed = null; nextChange = Infinity; |
| 2016 |
var foundBookmarks = [], endStyles = (void 0); |
| 2017 |
for (var j = 0; j < spans.length; ++j) { |
| 2018 |
var sp = spans[j], m = sp.marker; |
| 2019 |
if (m.type == "bookmark" && sp.from == pos && m.widgetNode) { |
| 2020 |
foundBookmarks.push(m); |
| 2021 |
} else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) { |
| 2022 |
if (sp.to != null && sp.to != pos && nextChange > sp.to) { |
| 2023 |
nextChange = sp.to; |
| 2024 |
spanEndStyle = ""; |
| 2025 |
} |
| 2026 |
if (m.className) { spanStyle += " " + m.className; } |
| 2027 |
if (m.css) { css = (css ? css + ";" : "") + m.css; } |
| 2028 |
if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle; } |
| 2029 |
if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); } |
| 2030 |
// support for the old title property |
| 2031 |
// https://github.com/codemirror/CodeMirror/pull/5673 |
| 2032 |
if (m.title) { (attributes || (attributes = {})).title = m.title; } |
| 2033 |
if (m.attributes) { |
| 2034 |
for (var attr in m.attributes) |
| 2035 |
{ (attributes || (attributes = {}))[attr] = m.attributes[attr]; } |
| 2036 |
} |
| 2037 |
if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0)) |
| 2038 |
{ collapsed = sp; } |
| 2039 |
} else if (sp.from > pos && nextChange > sp.from) { |
| 2040 |
nextChange = sp.from; |
| 2041 |
} |
| 2042 |
} |
| 2043 |
if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2) |
| 2044 |
{ if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1]; } } } |
| 2045 |
|
| 2046 |
if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2) |
| 2047 |
{ buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } } |
| 2048 |
if (collapsed && (collapsed.from || 0) == pos) { |
| 2049 |
buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos, |
| 2050 |
collapsed.marker, collapsed.from == null); |
| 2051 |
if (collapsed.to == null) { return } |
| 2052 |
if (collapsed.to == pos) { collapsed = false; } |
| 2053 |
} |
| 2054 |
} |
| 2055 |
if (pos >= len) { break } |
| 2056 |
|
| 2057 |
var upto = Math.min(len, nextChange); |
| 2058 |
while (true) { |
| 2059 |
if (text) { |
| 2060 |
var end = pos + text.length; |
| 2061 |
if (!collapsed) { |
| 2062 |
var tokenText = end > upto ? text.slice(0, upto - pos) : text; |
| 2063 |
builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle, |
| 2064 |
spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", css, attributes); |
| 2065 |
} |
| 2066 |
if (end >= upto) {text = text.slice(upto - pos); pos = upto; break} |
| 2067 |
pos = end; |
| 2068 |
spanStartStyle = ""; |
| 2069 |
} |
| 2070 |
text = allText.slice(at, at = styles[i++]); |
| 2071 |
style = interpretTokenStyle(styles[i++], builder.cm.options); |
| 2072 |
} |
| 2073 |
} |
| 2074 |
} |
| 2075 |
|
| 2076 |
|
| 2077 |
// These objects are used to represent the visible (currently drawn) |
| 2078 |
// part of the document. A LineView may correspond to multiple |
| 2079 |
// logical lines, if those are connected by collapsed ranges. |
| 2080 |
function LineView(doc, line, lineN) { |
| 2081 |
// The starting line |
| 2082 |
this.line = line; |
| 2083 |
// Continuing lines, if any |
| 2084 |
this.rest = visualLineContinued(line); |
| 2085 |
// Number of logical lines in this visual line |
| 2086 |
this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1; |
| 2087 |
this.node = this.text = null; |
| 2088 |
this.hidden = lineIsHidden(doc, line); |
| 2089 |
} |
| 2090 |
|
| 2091 |
// Create a range of LineView objects for the given lines. |
| 2092 |
function buildViewArray(cm, from, to) { |
| 2093 |
var array = [], nextPos; |
| 2094 |
for (var pos = from; pos < to; pos = nextPos) { |
| 2095 |
var view = new LineView(cm.doc, getLine(cm.doc, pos), pos); |
| 2096 |
nextPos = pos + view.size; |
| 2097 |
array.push(view); |
| 2098 |
} |
| 2099 |
return array |
| 2100 |
} |
| 2101 |
|
| 2102 |
var operationGroup = null; |
| 2103 |
|
| 2104 |
function pushOperation(op) { |
| 2105 |
if (operationGroup) { |
| 2106 |
operationGroup.ops.push(op); |
| 2107 |
} else { |
| 2108 |
op.ownsGroup = operationGroup = { |
| 2109 |
ops: [op], |
| 2110 |
delayedCallbacks: [] |
| 2111 |
}; |
| 2112 |
} |
| 2113 |
} |
| 2114 |
|
| 2115 |
function fireCallbacksForOps(group) { |
| 2116 |
// Calls delayed callbacks and cursorActivity handlers until no |
| 2117 |
// new ones appear |
| 2118 |
var callbacks = group.delayedCallbacks, i = 0; |
| 2119 |
do { |
| 2120 |
for (; i < callbacks.length; i++) |
| 2121 |
{ callbacks[i].call(null); } |
| 2122 |
for (var j = 0; j < group.ops.length; j++) { |
| 2123 |
var op = group.ops[j]; |
| 2124 |
if (op.cursorActivityHandlers) |
| 2125 |
{ while (op.cursorActivityCalled < op.cursorActivityHandlers.length) |
| 2126 |
{ op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } } |
| 2127 |
} |
| 2128 |
} while (i < callbacks.length) |
| 2129 |
} |
| 2130 |
|
| 2131 |
function finishOperation(op, endCb) { |
| 2132 |
var group = op.ownsGroup; |
| 2133 |
if (!group) { return } |
| 2134 |
|
| 2135 |
try { fireCallbacksForOps(group); } |
| 2136 |
finally { |
| 2137 |
operationGroup = null; |
| 2138 |
endCb(group); |
| 2139 |
} |
| 2140 |
} |
| 2141 |
|
| 2142 |
var orphanDelayedCallbacks = null; |
| 2143 |
|
| 2144 |
// Often, we want to signal events at a point where we are in the |
| 2145 |
// middle of some work, but don't want the handler to start calling |
| 2146 |
// other methods on the editor, which might be in an inconsistent |
| 2147 |
// state or simply not expect any other events to happen. |
| 2148 |
// signalLater looks whether there are any handlers, and schedules |
| 2149 |
// them to be executed when the last operation ends, or, if no |
| 2150 |
// operation is active, when a timeout fires. |
| 2151 |
function signalLater(emitter, type /*, values...*/) { |
| 2152 |
var arr = getHandlers(emitter, type); |
| 2153 |
if (!arr.length) { return } |
| 2154 |
var args = Array.prototype.slice.call(arguments, 2), list; |
| 2155 |
if (operationGroup) { |
| 2156 |
list = operationGroup.delayedCallbacks; |
| 2157 |
} else if (orphanDelayedCallbacks) { |
| 2158 |
list = orphanDelayedCallbacks; |
| 2159 |
} else { |
| 2160 |
list = orphanDelayedCallbacks = []; |
| 2161 |
setTimeout(fireOrphanDelayed, 0); |
| 2162 |
} |
| 2163 |
var loop = function ( i ) { |
| 2164 |
list.push(function () { return arr[i].apply(null, args); }); |
| 2165 |
}; |
| 2166 |
|
| 2167 |
for (var i = 0; i < arr.length; ++i) |
| 2168 |
loop( i ); |
| 2169 |
} |
| 2170 |
|
| 2171 |
function fireOrphanDelayed() { |
| 2172 |
var delayed = orphanDelayedCallbacks; |
| 2173 |
orphanDelayedCallbacks = null; |
| 2174 |
for (var i = 0; i < delayed.length; ++i) { delayed[i](); } |
| 2175 |
} |
| 2176 |
|
| 2177 |
// When an aspect of a line changes, a string is added to |
| 2178 |
// lineView.changes. This updates the relevant part of the line's |
| 2179 |
// DOM structure. |
| 2180 |
function updateLineForChanges(cm, lineView, lineN, dims) { |
| 2181 |
for (var j = 0; j < lineView.changes.length; j++) { |
| 2182 |
var type = lineView.changes[j]; |
| 2183 |
if (type == "text") { updateLineText(cm, lineView); } |
| 2184 |
else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims); } |
| 2185 |
else if (type == "class") { updateLineClasses(cm, lineView); } |
| 2186 |
else if (type == "widget") { updateLineWidgets(cm, lineView, dims); } |
| 2187 |
} |
| 2188 |
lineView.changes = null; |
| 2189 |
} |
| 2190 |
|
| 2191 |
// Lines with gutter elements, widgets or a background class need to |
| 2192 |
// be wrapped, and have the extra elements added to the wrapper div |
| 2193 |
function ensureLineWrapped(lineView) { |
| 2194 |
if (lineView.node == lineView.text) { |
| 2195 |
lineView.node = elt("div", null, null, "position: relative"); |
| 2196 |
if (lineView.text.parentNode) |
| 2197 |
{ lineView.text.parentNode.replaceChild(lineView.node, lineView.text); } |
| 2198 |
lineView.node.appendChild(lineView.text); |
| 2199 |
if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; } |
| 2200 |
} |
| 2201 |
return lineView.node |
| 2202 |
} |
| 2203 |
|
| 2204 |
function updateLineBackground(cm, lineView) { |
| 2205 |
var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass; |
| 2206 |
if (cls) { cls += " CodeMirror-linebackground"; } |
| 2207 |
if (lineView.background) { |
| 2208 |
if (cls) { lineView.background.className = cls; } |
| 2209 |
else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; } |
| 2210 |
} else if (cls) { |
| 2211 |
var wrap = ensureLineWrapped(lineView); |
| 2212 |
lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild); |
| 2213 |
cm.display.input.setUneditable(lineView.background); |
| 2214 |
} |
| 2215 |
} |
| 2216 |
|
| 2217 |
// Wrapper around buildLineContent which will reuse the structure |
| 2218 |
// in display.externalMeasured when possible. |
| 2219 |
function getLineContent(cm, lineView) { |
| 2220 |
var ext = cm.display.externalMeasured; |
| 2221 |
if (ext && ext.line == lineView.line) { |
| 2222 |
cm.display.externalMeasured = null; |
| 2223 |
lineView.measure = ext.measure; |
| 2224 |
return ext.built |
| 2225 |
} |
| 2226 |
return buildLineContent(cm, lineView) |
| 2227 |
} |
| 2228 |
|
| 2229 |
// Redraw the line's text. Interacts with the background and text |
| 2230 |
// classes because the mode may output tokens that influence these |
| 2231 |
// classes. |
| 2232 |
function updateLineText(cm, lineView) { |
| 2233 |
var cls = lineView.text.className; |
| 2234 |
var built = getLineContent(cm, lineView); |
| 2235 |
if (lineView.text == lineView.node) { lineView.node = built.pre; } |
| 2236 |
lineView.text.parentNode.replaceChild(built.pre, lineView.text); |
| 2237 |
lineView.text = built.pre; |
| 2238 |
if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) { |
| 2239 |
lineView.bgClass = built.bgClass; |
| 2240 |
lineView.textClass = built.textClass; |
| 2241 |
updateLineClasses(cm, lineView); |
| 2242 |
} else if (cls) { |
| 2243 |
lineView.text.className = cls; |
| 2244 |
} |
| 2245 |
} |
| 2246 |
|
| 2247 |
function updateLineClasses(cm, lineView) { |
| 2248 |
updateLineBackground(cm, lineView); |
| 2249 |
if (lineView.line.wrapClass) |
| 2250 |
{ ensureLineWrapped(lineView).className = lineView.line.wrapClass; } |
| 2251 |
else if (lineView.node != lineView.text) |
| 2252 |
{ lineView.node.className = ""; } |
| 2253 |
var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass; |
| 2254 |
lineView.text.className = textClass || ""; |
| 2255 |
} |
| 2256 |
|
| 2257 |
function updateLineGutter(cm, lineView, lineN, dims) { |
| 2258 |
if (lineView.gutter) { |
| 2259 |
lineView.node.removeChild(lineView.gutter); |
| 2260 |
lineView.gutter = null; |
| 2261 |
} |
| 2262 |
if (lineView.gutterBackground) { |
| 2263 |
lineView.node.removeChild(lineView.gutterBackground); |
| 2264 |
lineView.gutterBackground = null; |
| 2265 |
} |
| 2266 |
if (lineView.line.gutterClass) { |
| 2267 |
var wrap = ensureLineWrapped(lineView); |
| 2268 |
lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass, |
| 2269 |
("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px")); |
| 2270 |
cm.display.input.setUneditable(lineView.gutterBackground); |
| 2271 |
wrap.insertBefore(lineView.gutterBackground, lineView.text); |
| 2272 |
} |
| 2273 |
var markers = lineView.line.gutterMarkers; |
| 2274 |
if (cm.options.lineNumbers || markers) { |
| 2275 |
var wrap$1 = ensureLineWrapped(lineView); |
| 2276 |
var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px")); |
| 2277 |
cm.display.input.setUneditable(gutterWrap); |
| 2278 |
wrap$1.insertBefore(gutterWrap, lineView.text); |
| 2279 |
if (lineView.line.gutterClass) |
| 2280 |
{ gutterWrap.className += " " + lineView.line.gutterClass; } |
| 2281 |
if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"])) |
| 2282 |
{ lineView.lineNumber = gutterWrap.appendChild( |
| 2283 |
elt("div", lineNumberFor(cm.options, lineN), |
| 2284 |
"CodeMirror-linenumber CodeMirror-gutter-elt", |
| 2285 |
("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))); } |
| 2286 |
if (markers) { for (var k = 0; k < cm.options.gutters.length; ++k) { |
| 2287 |
var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]; |
| 2288 |
if (found) |
| 2289 |
{ gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", |
| 2290 |
("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))); } |
| 2291 |
} } |
| 2292 |
} |
| 2293 |
} |
| 2294 |
|
| 2295 |
function updateLineWidgets(cm, lineView, dims) { |
| 2296 |
if (lineView.alignable) { lineView.alignable = null; } |
| 2297 |
for (var node = lineView.node.firstChild, next = (void 0); node; node = next) { |
| 2298 |
next = node.nextSibling; |
| 2299 |
if (node.className == "CodeMirror-linewidget") |
| 2300 |
{ lineView.node.removeChild(node); } |
| 2301 |
} |
| 2302 |
insertLineWidgets(cm, lineView, dims); |
| 2303 |
} |
| 2304 |
|
| 2305 |
// Build a line's DOM representation from scratch |
| 2306 |
function buildLineElement(cm, lineView, lineN, dims) { |
| 2307 |
var built = getLineContent(cm, lineView); |
| 2308 |
lineView.text = lineView.node = built.pre; |
| 2309 |
if (built.bgClass) { lineView.bgClass = built.bgClass; } |
| 2310 |
if (built.textClass) { lineView.textClass = built.textClass; } |
| 2311 |
|
| 2312 |
updateLineClasses(cm, lineView); |
| 2313 |
updateLineGutter(cm, lineView, lineN, dims); |
| 2314 |
insertLineWidgets(cm, lineView, dims); |
| 2315 |
return lineView.node |
| 2316 |
} |
| 2317 |
|
| 2318 |
// A lineView may contain multiple logical lines (when merged by |
| 2319 |
// collapsed spans). The widgets for all of them need to be drawn. |
| 2320 |
function insertLineWidgets(cm, lineView, dims) { |
| 2321 |
insertLineWidgetsFor(cm, lineView.line, lineView, dims, true); |
| 2322 |
if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++) |
| 2323 |
{ insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } } |
| 2324 |
} |
| 2325 |
|
| 2326 |
function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) { |
| 2327 |
if (!line.widgets) { return } |
| 2328 |
var wrap = ensureLineWrapped(lineView); |
| 2329 |
for (var i = 0, ws = line.widgets; i < ws.length; ++i) { |
| 2330 |
var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget"); |
| 2331 |
if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true"); } |
| 2332 |
positionLineWidget(widget, node, lineView, dims); |
| 2333 |
cm.display.input.setUneditable(node); |
| 2334 |
if (allowAbove && widget.above) |
| 2335 |
{ wrap.insertBefore(node, lineView.gutter || lineView.text); } |
| 2336 |
else |
| 2337 |
{ wrap.appendChild(node); } |
| 2338 |
signalLater(widget, "redraw"); |
| 2339 |
} |
| 2340 |
} |
| 2341 |
|
| 2342 |
function positionLineWidget(widget, node, lineView, dims) { |
| 2343 |
if (widget.noHScroll) { |
| 2344 |
(lineView.alignable || (lineView.alignable = [])).push(node); |
| 2345 |
var width = dims.wrapperWidth; |
| 2346 |
node.style.left = dims.fixedPos + "px"; |
| 2347 |
if (!widget.coverGutter) { |
| 2348 |
width -= dims.gutterTotalWidth; |
| 2349 |
node.style.paddingLeft = dims.gutterTotalWidth + "px"; |
| 2350 |
} |
| 2351 |
node.style.width = width + "px"; |
| 2352 |
} |
| 2353 |
if (widget.coverGutter) { |
| 2354 |
node.style.zIndex = 5; |
| 2355 |
node.style.position = "relative"; |
| 2356 |
if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px"; } |
| 2357 |
} |
| 2358 |
} |
| 2359 |
|
| 2360 |
function widgetHeight(widget) { |
| 2361 |
if (widget.height != null) { return widget.height } |
| 2362 |
var cm = widget.doc.cm; |
| 2363 |
if (!cm) { return 0 } |
| 2364 |
if (!contains(document.body, widget.node)) { |
| 2365 |
var parentStyle = "position: relative;"; |
| 2366 |
if (widget.coverGutter) |
| 2367 |
{ parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; } |
| 2368 |
if (widget.noHScroll) |
| 2369 |
{ parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; } |
| 2370 |
removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle)); |
| 2371 |
} |
| 2372 |
return widget.height = widget.node.parentNode.offsetHeight |
| 2373 |
} |
| 2374 |
|
| 2375 |
// Return true when the given mouse event happened in a widget |
| 2376 |
function eventInWidget(display, e) { |
| 2377 |
for (var n = e_target(e); n != display.wrapper; n = n.parentNode) { |
| 2378 |
if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") || |
| 2379 |
(n.parentNode == display.sizer && n != display.mover)) |
| 2380 |
{ return true } |
| 2381 |
} |
| 2382 |
} |
| 2383 |
|
| 2384 |
// POSITION MEASUREMENT |
| 2385 |
|
| 2386 |
function paddingTop(display) {return display.lineSpace.offsetTop} |
| 2387 |
function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight} |
| 2388 |
function paddingH(display) { |
| 2389 |
if (display.cachedPaddingH) { return display.cachedPaddingH } |
| 2390 |
var e = removeChildrenAndAdd(display.measure, elt("pre", "x")); |
| 2391 |
var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle; |
| 2392 |
var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)}; |
| 2393 |
if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; } |
| 2394 |
return data |
| 2395 |
} |
| 2396 |
|
| 2397 |
function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth } |
| 2398 |
function displayWidth(cm) { |
| 2399 |
return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth |
| 2400 |
} |
| 2401 |
function displayHeight(cm) { |
| 2402 |
return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight |
| 2403 |
} |
| 2404 |
|
| 2405 |
// Ensure the lineView.wrapping.heights array is populated. This is |
| 2406 |
// an array of bottom offsets for the lines that make up a drawn |
| 2407 |
// line. When lineWrapping is on, there might be more than one |
| 2408 |
// height. |
| 2409 |
function ensureLineHeights(cm, lineView, rect) { |
| 2410 |
var wrapping = cm.options.lineWrapping; |
| 2411 |
var curWidth = wrapping && displayWidth(cm); |
| 2412 |
if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) { |
| 2413 |
var heights = lineView.measure.heights = []; |
| 2414 |
if (wrapping) { |
| 2415 |
lineView.measure.width = curWidth; |
| 2416 |
var rects = lineView.text.firstChild.getClientRects(); |
| 2417 |
for (var i = 0; i < rects.length - 1; i++) { |
| 2418 |
var cur = rects[i], next = rects[i + 1]; |
| 2419 |
if (Math.abs(cur.bottom - next.bottom) > 2) |
| 2420 |
{ heights.push((cur.bottom + next.top) / 2 - rect.top); } |
| 2421 |
} |
| 2422 |
} |
| 2423 |
heights.push(rect.bottom - rect.top); |
| 2424 |
} |
| 2425 |
} |
| 2426 |
|
| 2427 |
// Find a line map (mapping character offsets to text nodes) and a |
| 2428 |
// measurement cache for the given line number. (A line view might |
| 2429 |
// contain multiple lines when collapsed ranges are present.) |
| 2430 |
function mapFromLineView(lineView, line, lineN) { |
| 2431 |
if (lineView.line == line) |
| 2432 |
{ return {map: lineView.measure.map, cache: lineView.measure.cache} } |
| 2433 |
for (var i = 0; i < lineView.rest.length; i++) |
| 2434 |
{ if (lineView.rest[i] == line) |
| 2435 |
{ return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } } |
| 2436 |
for (var i$1 = 0; i$1 < lineView.rest.length; i$1++) |
| 2437 |
{ if (lineNo(lineView.rest[i$1]) > lineN) |
| 2438 |
{ return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } } |
| 2439 |
} |
| 2440 |
|
| 2441 |
// Render a line into the hidden node display.externalMeasured. Used |
| 2442 |
// when measurement is needed for a line that's not in the viewport. |
| 2443 |
function updateExternalMeasurement(cm, line) { |
| 2444 |
line = visualLine(line); |
| 2445 |
var lineN = lineNo(line); |
| 2446 |
var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN); |
| 2447 |
view.lineN = lineN; |
| 2448 |
var built = view.built = buildLineContent(cm, view); |
| 2449 |
view.text = built.pre; |
| 2450 |
removeChildrenAndAdd(cm.display.lineMeasure, built.pre); |
| 2451 |
return view |
| 2452 |
} |
| 2453 |
|
| 2454 |
// Get a {top, bottom, left, right} box (in line-local coordinates) |
| 2455 |
// for a given character. |
| 2456 |
function measureChar(cm, line, ch, bias) { |
| 2457 |
return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias) |
| 2458 |
} |
| 2459 |
|
| 2460 |
// Find a line view that corresponds to the given line number. |
| 2461 |
function findViewForLine(cm, lineN) { |
| 2462 |
if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo) |
| 2463 |
{ return cm.display.view[findViewIndex(cm, lineN)] } |
| 2464 |
var ext = cm.display.externalMeasured; |
| 2465 |
if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size) |
| 2466 |
{ return ext } |
| 2467 |
} |
| 2468 |
|
| 2469 |
// Measurement can be split in two steps, the set-up work that |
| 2470 |
// applies to the whole line, and the measurement of the actual |
| 2471 |
// character. Functions like coordsChar, that need to do a lot of |
| 2472 |
// measurements in a row, can thus ensure that the set-up work is |
| 2473 |
// only done once. |
| 2474 |
function prepareMeasureForLine(cm, line) { |
| 2475 |
var lineN = lineNo(line); |
| 2476 |
var view = findViewForLine(cm, lineN); |
| 2477 |
if (view && !view.text) { |
| 2478 |
view = null; |
| 2479 |
} else if (view && view.changes) { |
| 2480 |
updateLineForChanges(cm, view, lineN, getDimensions(cm)); |
| 2481 |
cm.curOp.forceUpdate = true; |
| 2482 |
} |
| 2483 |
if (!view) |
| 2484 |
{ view = updateExternalMeasurement(cm, line); } |
| 2485 |
|
| 2486 |
var info = mapFromLineView(view, line, lineN); |
| 2487 |
return { |
| 2488 |
line: line, view: view, rect: null, |
| 2489 |
map: info.map, cache: info.cache, before: info.before, |
| 2490 |
hasHeights: false |
| 2491 |
} |
| 2492 |
} |
| 2493 |
|
| 2494 |
// Given a prepared measurement object, measures the position of an |
| 2495 |
// actual character (or fetches it from the cache). |
| 2496 |
function measureCharPrepared(cm, prepared, ch, bias, varHeight) { |
| 2497 |
if (prepared.before) { ch = -1; } |
| 2498 |
var key = ch + (bias || ""), found; |
| 2499 |
if (prepared.cache.hasOwnProperty(key)) { |
| 2500 |
found = prepared.cache[key]; |
| 2501 |
} else { |
| 2502 |
if (!prepared.rect) |
| 2503 |
{ prepared.rect = prepared.view.text.getBoundingClientRect(); } |
| 2504 |
if (!prepared.hasHeights) { |
| 2505 |
ensureLineHeights(cm, prepared.view, prepared.rect); |
| 2506 |
prepared.hasHeights = true; |
| 2507 |
} |
| 2508 |
found = measureCharInner(cm, prepared, ch, bias); |
| 2509 |
if (!found.bogus) { prepared.cache[key] = found; } |
| 2510 |
} |
| 2511 |
return {left: found.left, right: found.right, |
| 2512 |
top: varHeight ? found.rtop : found.top, |
| 2513 |
bottom: varHeight ? found.rbottom : found.bottom} |
| 2514 |
} |
| 2515 |
|
| 2516 |
var nullRect = {left: 0, right: 0, top: 0, bottom: 0}; |
| 2517 |
|
| 2518 |
function nodeAndOffsetInLineMap(map$$1, ch, bias) { |
| 2519 |
var node, start, end, collapse, mStart, mEnd; |
| 2520 |
// First, search the line map for the text node corresponding to, |
| 2521 |
// or closest to, the target character. |
| 2522 |
for (var i = 0; i < map$$1.length; i += 3) { |
| 2523 |
mStart = map$$1[i]; |
| 2524 |
mEnd = map$$1[i + 1]; |
| 2525 |
if (ch < mStart) { |
| 2526 |
start = 0; end = 1; |
| 2527 |
collapse = "left"; |
| 2528 |
} else if (ch < mEnd) { |
| 2529 |
start = ch - mStart; |
| 2530 |
end = start + 1; |
| 2531 |
} else if (i == map$$1.length - 3 || ch == mEnd && map$$1[i + 3] > ch) { |
| 2532 |
end = mEnd - mStart; |
| 2533 |
start = end - 1; |
| 2534 |
if (ch >= mEnd) { collapse = "right"; } |
| 2535 |
} |
| 2536 |
if (start != null) { |
| 2537 |
node = map$$1[i + 2]; |
| 2538 |
if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right")) |
| 2539 |
{ collapse = bias; } |
| 2540 |
if (bias == "left" && start == 0) |
| 2541 |
{ while (i && map$$1[i - 2] == map$$1[i - 3] && map$$1[i - 1].insertLeft) { |
| 2542 |
node = map$$1[(i -= 3) + 2]; |
| 2543 |
collapse = "left"; |
| 2544 |
} } |
| 2545 |
if (bias == "right" && start == mEnd - mStart) |
| 2546 |
{ while (i < map$$1.length - 3 && map$$1[i + 3] == map$$1[i + 4] && !map$$1[i + 5].insertLeft) { |
| 2547 |
node = map$$1[(i += 3) + 2]; |
| 2548 |
collapse = "right"; |
| 2549 |
} } |
| 2550 |
break |
| 2551 |
} |
| 2552 |
} |
| 2553 |
return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd} |
| 2554 |
} |
| 2555 |
|
| 2556 |
function getUsefulRect(rects, bias) { |
| 2557 |
var rect = nullRect; |
| 2558 |
if (bias == "left") { for (var i = 0; i < rects.length; i++) { |
| 2559 |
if ((rect = rects[i]).left != rect.right) { break } |
| 2560 |
} } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) { |
| 2561 |
if ((rect = rects[i$1]).left != rect.right) { break } |
| 2562 |
} } |
| 2563 |
return rect |
| 2564 |
} |
| 2565 |
|
| 2566 |
function measureCharInner(cm, prepared, ch, bias) { |
| 2567 |
var place = nodeAndOffsetInLineMap(prepared.map, ch, bias); |
| 2568 |
var node = place.node, start = place.start, end = place.end, collapse = place.collapse; |
| 2569 |
|
| 2570 |
var rect; |
| 2571 |
if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates. |
| 2572 |
for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned |
| 2573 |
while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; } |
| 2574 |
while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; } |
| 2575 |
if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart) |
| 2576 |
{ rect = node.parentNode.getBoundingClientRect(); } |
| 2577 |
else |
| 2578 |
{ rect = getUsefulRect(range(node, start, end).getClientRects(), bias); } |
| 2579 |
if (rect.left || rect.right || start == 0) { break } |
| 2580 |
end = start; |
| 2581 |
start = start - 1; |
| 2582 |
collapse = "right"; |
| 2583 |
} |
| 2584 |
if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); } |
| 2585 |
} else { // If it is a widget, simply get the box for the whole widget. |
| 2586 |
if (start > 0) { collapse = bias = "right"; } |
| 2587 |
var rects; |
| 2588 |
if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1) |
| 2589 |
{ rect = rects[bias == "right" ? rects.length - 1 : 0]; } |
| 2590 |
else |
| 2591 |
{ rect = node.getBoundingClientRect(); } |
| 2592 |
} |
| 2593 |
if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) { |
| 2594 |
var rSpan = node.parentNode.getClientRects()[0]; |
| 2595 |
if (rSpan) |
| 2596 |
{ rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; } |
| 2597 |
else |
| 2598 |
{ rect = nullRect; } |
| 2599 |
} |
| 2600 |
|
| 2601 |
var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top; |
| 2602 |
var mid = (rtop + rbot) / 2; |
| 2603 |
var heights = prepared.view.measure.heights; |
| 2604 |
var i = 0; |
| 2605 |
for (; i < heights.length - 1; i++) |
| 2606 |
{ if (mid < heights[i]) { break } } |
| 2607 |
var top = i ? heights[i - 1] : 0, bot = heights[i]; |
| 2608 |
var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left, |
| 2609 |
right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left, |
| 2610 |
top: top, bottom: bot}; |
| 2611 |
if (!rect.left && !rect.right) { result.bogus = true; } |
| 2612 |
if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; } |
| 2613 |
|
| 2614 |
return result |
| 2615 |
} |
| 2616 |
|
| 2617 |
// Work around problem with bounding client rects on ranges being |
| 2618 |
// returned incorrectly when zoomed on IE10 and below. |
| 2619 |
function maybeUpdateRectForZooming(measure, rect) { |
| 2620 |
if (!window.screen || screen.logicalXDPI == null || |
| 2621 |
screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure)) |
| 2622 |
{ return rect } |
| 2623 |
var scaleX = screen.logicalXDPI / screen.deviceXDPI; |
| 2624 |
var scaleY = screen.logicalYDPI / screen.deviceYDPI; |
| 2625 |
return {left: rect.left * scaleX, right: rect.right * scaleX, |
| 2626 |
top: rect.top * scaleY, bottom: rect.bottom * scaleY} |
| 2627 |
} |
| 2628 |
|
| 2629 |
function clearLineMeasurementCacheFor(lineView) { |
| 2630 |
if (lineView.measure) { |
| 2631 |
lineView.measure.cache = {}; |
| 2632 |
lineView.measure.heights = null; |
| 2633 |
if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++) |
| 2634 |
{ lineView.measure.caches[i] = {}; } } |
| 2635 |
} |
| 2636 |
} |
| 2637 |
|
| 2638 |
function clearLineMeasurementCache(cm) { |
| 2639 |
cm.display.externalMeasure = null; |
| 2640 |
removeChildren(cm.display.lineMeasure); |
| 2641 |
for (var i = 0; i < cm.display.view.length; i++) |
| 2642 |
{ clearLineMeasurementCacheFor(cm.display.view[i]); } |
| 2643 |
} |
| 2644 |
|
| 2645 |
function clearCaches(cm) { |
| 2646 |
clearLineMeasurementCache(cm); |
| 2647 |
cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null; |
| 2648 |
if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; } |
| 2649 |
cm.display.lineNumChars = null; |
| 2650 |
} |
| 2651 |
|
| 2652 |
function pageScrollX() { |
| 2653 |
// Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206 |
| 2654 |
// which causes page_Offset and bounding client rects to use |
| 2655 |
// different reference viewports and invalidate our calculations. |
| 2656 |
if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) } |
| 2657 |
return window.pageXOffset || (document.documentElement || document.body).scrollLeft |
| 2658 |
} |
| 2659 |
function pageScrollY() { |
| 2660 |
if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) } |
| 2661 |
return window.pageYOffset || (document.documentElement || document.body).scrollTop |
| 2662 |
} |
| 2663 |
|
| 2664 |
function widgetTopHeight(lineObj) { |
| 2665 |
var height = 0; |
| 2666 |
if (lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above) |
| 2667 |
{ height += widgetHeight(lineObj.widgets[i]); } } } |
| 2668 |
return height |
| 2669 |
} |
| 2670 |
|
| 2671 |
// Converts a {top, bottom, left, right} box from line-local |
| 2672 |
// coordinates into another coordinate system. Context may be one of |
| 2673 |
// "line", "div" (display.lineDiv), "local"./null (editor), "window", |
| 2674 |
// or "page". |
| 2675 |
function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) { |
| 2676 |
if (!includeWidgets) { |
| 2677 |
var height = widgetTopHeight(lineObj); |
| 2678 |
rect.top += height; rect.bottom += height; |
| 2679 |
} |
| 2680 |
if (context == "line") { return rect } |
| 2681 |
if (!context) { context = "local"; } |
| 2682 |
var yOff = heightAtLine(lineObj); |
| 2683 |
if (context == "local") { yOff += paddingTop(cm.display); } |
| 2684 |
else { yOff -= cm.display.viewOffset; } |
| 2685 |
if (context == "page" || context == "window") { |
| 2686 |
var lOff = cm.display.lineSpace.getBoundingClientRect(); |
| 2687 |
yOff += lOff.top + (context == "window" ? 0 : pageScrollY()); |
| 2688 |
var xOff = lOff.left + (context == "window" ? 0 : pageScrollX()); |
| 2689 |
rect.left += xOff; rect.right += xOff; |
| 2690 |
} |
| 2691 |
rect.top += yOff; rect.bottom += yOff; |
| 2692 |
return rect |
| 2693 |
} |
| 2694 |
|
| 2695 |
// Coverts a box from "div" coords to another coordinate system. |
| 2696 |
// Context may be "window", "page", "div", or "local"./null. |
| 2697 |
function fromCoordSystem(cm, coords, context) { |
| 2698 |
if (context == "div") { return coords } |
| 2699 |
var left = coords.left, top = coords.top; |
| 2700 |
// First move into "page" coordinate system |
| 2701 |
if (context == "page") { |
| 2702 |
left -= pageScrollX(); |
| 2703 |
top -= pageScrollY(); |
| 2704 |
} else if (context == "local" || !context) { |
| 2705 |
var localBox = cm.display.sizer.getBoundingClientRect(); |
| 2706 |
left += localBox.left; |
| 2707 |
top += localBox.top; |
| 2708 |
} |
| 2709 |
|
| 2710 |
var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect(); |
| 2711 |
return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top} |
| 2712 |
} |
| 2713 |
|
| 2714 |
function charCoords(cm, pos, context, lineObj, bias) { |
| 2715 |
if (!lineObj) { lineObj = getLine(cm.doc, pos.line); } |
| 2716 |
return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context) |
| 2717 |
} |
| 2718 |
|
| 2719 |
// Returns a box for a given cursor position, which may have an |
| 2720 |
// 'other' property containing the position of the secondary cursor |
| 2721 |
// on a bidi boundary. |
| 2722 |
// A cursor Pos(line, char, "before") is on the same visual line as `char - 1` |
| 2723 |
// and after `char - 1` in writing order of `char - 1` |
| 2724 |
// A cursor Pos(line, char, "after") is on the same visual line as `char` |
| 2725 |
// and before `char` in writing order of `char` |
| 2726 |
// Examples (upper-case letters are RTL, lower-case are LTR): |
| 2727 |
// Pos(0, 1, ...) |
| 2728 |
// before after |
| 2729 |
// ab a|b a|b |
| 2730 |
// aB a|B aB| |
| 2731 |
// Ab |Ab A|b |
| 2732 |
// AB B|A B|A |
| 2733 |
// Every position after the last character on a line is considered to stick |
| 2734 |
// to the last character on the line. |
| 2735 |
function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) { |
| 2736 |
lineObj = lineObj || getLine(cm.doc, pos.line); |
| 2737 |
if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); } |
| 2738 |
function get(ch, right) { |
| 2739 |
var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight); |
| 2740 |
if (right) { m.left = m.right; } else { m.right = m.left; } |
| 2741 |
return intoCoordSystem(cm, lineObj, m, context) |
| 2742 |
} |
| 2743 |
var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky; |
| 2744 |
if (ch >= lineObj.text.length) { |
| 2745 |
ch = lineObj.text.length; |
| 2746 |
sticky = "before"; |
| 2747 |
} else if (ch <= 0) { |
| 2748 |
ch = 0; |
| 2749 |
sticky = "after"; |
| 2750 |
} |
| 2751 |
if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") } |
| 2752 |
|
| 2753 |
function getBidi(ch, partPos, invert) { |
| 2754 |
var part = order[partPos], right = part.level == 1; |
| 2755 |
return get(invert ? ch - 1 : ch, right != invert) |
| 2756 |
} |
| 2757 |
var partPos = getBidiPartAt(order, ch, sticky); |
| 2758 |
var other = bidiOther; |
| 2759 |
var val = getBidi(ch, partPos, sticky == "before"); |
| 2760 |
if (other != null) { val.other = getBidi(ch, other, sticky != "before"); } |
| 2761 |
return val |
| 2762 |
} |
| 2763 |
|
| 2764 |
// Used to cheaply estimate the coordinates for a position. Used for |
| 2765 |
// intermediate scroll updates. |
| 2766 |
function estimateCoords(cm, pos) { |
| 2767 |
var left = 0; |
| 2768 |
pos = clipPos(cm.doc, pos); |
| 2769 |
if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; } |
| 2770 |
var lineObj = getLine(cm.doc, pos.line); |
| 2771 |
var top = heightAtLine(lineObj) + paddingTop(cm.display); |
| 2772 |
return {left: left, right: left, top: top, bottom: top + lineObj.height} |
| 2773 |
} |
| 2774 |
|
| 2775 |
// Positions returned by coordsChar contain some extra information. |
| 2776 |
// xRel is the relative x position of the input coordinates compared |
| 2777 |
// to the found position (so xRel > 0 means the coordinates are to |
| 2778 |
// the right of the character position, for example). When outside |
| 2779 |
// is true, that means the coordinates lie outside the line's |
| 2780 |
// vertical range. |
| 2781 |
function PosWithInfo(line, ch, sticky, outside, xRel) { |
| 2782 |
var pos = Pos(line, ch, sticky); |
| 2783 |
pos.xRel = xRel; |
| 2784 |
if (outside) { pos.outside = true; } |
| 2785 |
return pos |
| 2786 |
} |
| 2787 |
|
| 2788 |
// Compute the character position closest to the given coordinates. |
| 2789 |
// Input must be lineSpace-local ("div" coordinate system). |
| 2790 |
function coordsChar(cm, x, y) { |
| 2791 |
var doc = cm.doc; |
| 2792 |
y += cm.display.viewOffset; |
| 2793 |
if (y < 0) { return PosWithInfo(doc.first, 0, null, true, -1) } |
| 2794 |
var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1; |
| 2795 |
if (lineN > last) |
| 2796 |
{ return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, true, 1) } |
| 2797 |
if (x < 0) { x = 0; } |
| 2798 |
|
| 2799 |
var lineObj = getLine(doc, lineN); |
| 2800 |
for (;;) { |
| 2801 |
var found = coordsCharInner(cm, lineObj, lineN, x, y); |
| 2802 |
var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 ? 1 : 0)); |
| 2803 |
if (!collapsed) { return found } |
| 2804 |
var rangeEnd = collapsed.find(1); |
| 2805 |
if (rangeEnd.line == lineN) { return rangeEnd } |
| 2806 |
lineObj = getLine(doc, lineN = rangeEnd.line); |
| 2807 |
} |
| 2808 |
} |
| 2809 |
|
| 2810 |
function wrappedLineExtent(cm, lineObj, preparedMeasure, y) { |
| 2811 |
y -= widgetTopHeight(lineObj); |
| 2812 |
var end = lineObj.text.length; |
| 2813 |
var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0); |
| 2814 |
end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end); |
| 2815 |
return {begin: begin, end: end} |
| 2816 |
} |
| 2817 |
|
| 2818 |
function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) { |
| 2819 |
if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); } |
| 2820 |
var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top; |
| 2821 |
return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop) |
| 2822 |
} |
| 2823 |
|
| 2824 |
// Returns true if the given side of a box is after the given |
| 2825 |
// coordinates, in top-to-bottom, left-to-right order. |
| 2826 |
function boxIsAfter(box, x, y, left) { |
| 2827 |
return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x |
| 2828 |
} |
| 2829 |
|
| 2830 |
function coordsCharInner(cm, lineObj, lineNo$$1, x, y) { |
| 2831 |
// Move y into line-local coordinate space |
| 2832 |
y -= heightAtLine(lineObj); |
| 2833 |
var preparedMeasure = prepareMeasureForLine(cm, lineObj); |
| 2834 |
// When directly calling `measureCharPrepared`, we have to adjust |
| 2835 |
// for the widgets at this line. |
| 2836 |
var widgetHeight$$1 = widgetTopHeight(lineObj); |
| 2837 |
var begin = 0, end = lineObj.text.length, ltr = true; |
| 2838 |
|
| 2839 |
var order = getOrder(lineObj, cm.doc.direction); |
| 2840 |
// If the line isn't plain left-to-right text, first figure out |
| 2841 |
// which bidi section the coordinates fall into. |
| 2842 |
if (order) { |
| 2843 |
var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart) |
| 2844 |
(cm, lineObj, lineNo$$1, preparedMeasure, order, x, y); |
| 2845 |
ltr = part.level != 1; |
| 2846 |
// The awkward -1 offsets are needed because findFirst (called |
| 2847 |
// on these below) will treat its first bound as inclusive, |
| 2848 |
// second as exclusive, but we want to actually address the |
| 2849 |
// characters in the part's range |
| 2850 |
begin = ltr ? part.from : part.to - 1; |
| 2851 |
end = ltr ? part.to : part.from - 1; |
| 2852 |
} |
| 2853 |
|
| 2854 |
// A binary search to find the first character whose bounding box |
| 2855 |
// starts after the coordinates. If we run across any whose box wrap |
| 2856 |
// the coordinates, store that. |
| 2857 |
var chAround = null, boxAround = null; |
| 2858 |
var ch = findFirst(function (ch) { |
| 2859 |
var box = measureCharPrepared(cm, preparedMeasure, ch); |
| 2860 |
box.top += widgetHeight$$1; box.bottom += widgetHeight$$1; |
| 2861 |
if (!boxIsAfter(box, x, y, false)) { return false } |
| 2862 |
if (box.top <= y && box.left <= x) { |
| 2863 |
chAround = ch; |
| 2864 |
boxAround = box; |
| 2865 |
} |
| 2866 |
return true |
| 2867 |
}, begin, end); |
| 2868 |
|
| 2869 |
var baseX, sticky, outside = false; |
| 2870 |
// If a box around the coordinates was found, use that |
| 2871 |
if (boxAround) { |
| 2872 |
// Distinguish coordinates nearer to the left or right side of the box |
| 2873 |
var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr; |
| 2874 |
ch = chAround + (atStart ? 0 : 1); |
| 2875 |
sticky = atStart ? "after" : "before"; |
| 2876 |
baseX = atLeft ? boxAround.left : boxAround.right; |
| 2877 |
} else { |
| 2878 |
// (Adjust for extended bound, if necessary.) |
| 2879 |
if (!ltr && (ch == end || ch == begin)) { ch++; } |
| 2880 |
// To determine which side to associate with, get the box to the |
| 2881 |
// left of the character and compare it's vertical position to the |
| 2882 |
// coordinates |
| 2883 |
sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" : |
| 2884 |
(measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight$$1 <= y) == ltr ? |
| 2885 |
"after" : "before"; |
| 2886 |
// Now get accurate coordinates for this place, in order to get a |
| 2887 |
// base X position |
| 2888 |
var coords = cursorCoords(cm, Pos(lineNo$$1, ch, sticky), "line", lineObj, preparedMeasure); |
| 2889 |
baseX = coords.left; |
| 2890 |
outside = y < coords.top || y >= coords.bottom; |
| 2891 |
} |
| 2892 |
|
| 2893 |
ch = skipExtendingChars(lineObj.text, ch, 1); |
| 2894 |
return PosWithInfo(lineNo$$1, ch, sticky, outside, x - baseX) |
| 2895 |
} |
| 2896 |
|
| 2897 |
function coordsBidiPart(cm, lineObj, lineNo$$1, preparedMeasure, order, x, y) { |
| 2898 |
// Bidi parts are sorted left-to-right, and in a non-line-wrapping |
| 2899 |
// situation, we can take this ordering to correspond to the visual |
| 2900 |
// ordering. This finds the first part whose end is after the given |
| 2901 |
// coordinates. |
| 2902 |
var index = findFirst(function (i) { |
| 2903 |
var part = order[i], ltr = part.level != 1; |
| 2904 |
return boxIsAfter(cursorCoords(cm, Pos(lineNo$$1, ltr ? part.to : part.from, ltr ? "before" : "after"), |
| 2905 |
"line", lineObj, preparedMeasure), x, y, true) |
| 2906 |
}, 0, order.length - 1); |
| 2907 |
var part = order[index]; |
| 2908 |
// If this isn't the first part, the part's start is also after |
| 2909 |
// the coordinates, and the coordinates aren't on the same line as |
| 2910 |
// that start, move one part back. |
| 2911 |
if (index > 0) { |
| 2912 |
var ltr = part.level != 1; |
| 2913 |
var start = cursorCoords(cm, Pos(lineNo$$1, ltr ? part.from : part.to, ltr ? "after" : "before"), |
| 2914 |
"line", lineObj, preparedMeasure); |
| 2915 |
if (boxIsAfter(start, x, y, true) && start.top > y) |
| 2916 |
{ part = order[index - 1]; } |
| 2917 |
} |
| 2918 |
return part |
| 2919 |
} |
| 2920 |
|
| 2921 |
function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) { |
| 2922 |
// In a wrapped line, rtl text on wrapping boundaries can do things |
| 2923 |
// that don't correspond to the ordering in our `order` array at |
| 2924 |
// all, so a binary search doesn't work, and we want to return a |
| 2925 |
// part that only spans one line so that the binary search in |
| 2926 |
// coordsCharInner is safe. As such, we first find the extent of the |
| 2927 |
// wrapped line, and then do a flat search in which we discard any |
| 2928 |
// spans that aren't on the line. |
| 2929 |
var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y); |
| 2930 |
var begin = ref.begin; |
| 2931 |
var end = ref.end; |
| 2932 |
if (/\s/.test(lineObj.text.charAt(end - 1))) { end--; } |
| 2933 |
var part = null, closestDist = null; |
| 2934 |
for (var i = 0; i < order.length; i++) { |
| 2935 |
var p = order[i]; |
| 2936 |
if (p.from >= end || p.to <= begin) { continue } |
| 2937 |
var ltr = p.level != 1; |
| 2938 |
var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right; |
| 2939 |
// Weigh against spans ending before this, so that they are only |
| 2940 |
// picked if nothing ends after |
| 2941 |
var dist = endX < x ? x - endX + 1e9 : endX - x; |
| 2942 |
if (!part || closestDist > dist) { |
| 2943 |
part = p; |
| 2944 |
closestDist = dist; |
| 2945 |
} |
| 2946 |
} |
| 2947 |
if (!part) { part = order[order.length - 1]; } |
| 2948 |
// Clip the part to the wrapped line. |
| 2949 |
if (part.from < begin) { part = {from: begin, to: part.to, level: part.level}; } |
| 2950 |
if (part.to > end) { part = {from: part.from, to: end, level: part.level}; } |
| 2951 |
return part |
| 2952 |
} |
| 2953 |
|
| 2954 |
var measureText; |
| 2955 |
// Compute the default text height. |
| 2956 |
function textHeight(display) { |
| 2957 |
if (display.cachedTextHeight != null) { return display.cachedTextHeight } |
| 2958 |
if (measureText == null) { |
| 2959 |
measureText = elt("pre"); |
| 2960 |
// Measure a bunch of lines, for browsers that compute |
| 2961 |
// fractional heights. |
| 2962 |
for (var i = 0; i < 49; ++i) { |
| 2963 |
measureText.appendChild(document.createTextNode("x")); |
| 2964 |
measureText.appendChild(elt("br")); |
| 2965 |
} |
| 2966 |
measureText.appendChild(document.createTextNode("x")); |
| 2967 |
} |
| 2968 |
removeChildrenAndAdd(display.measure, measureText); |
| 2969 |
var height = measureText.offsetHeight / 50; |
| 2970 |
if (height > 3) { display.cachedTextHeight = height; } |
| 2971 |
removeChildren(display.measure); |
| 2972 |
return height || 1 |
| 2973 |
} |
| 2974 |
|
| 2975 |
// Compute the default character width. |
| 2976 |
function charWidth(display) { |
| 2977 |
if (display.cachedCharWidth != null) { return display.cachedCharWidth } |
| 2978 |
var anchor = elt("span", "xxxxxxxxxx"); |
| 2979 |
var pre = elt("pre", [anchor]); |
| 2980 |
removeChildrenAndAdd(display.measure, pre); |
| 2981 |
var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10; |
| 2982 |
if (width > 2) { display.cachedCharWidth = width; } |
| 2983 |
return width || 10 |
| 2984 |
} |
| 2985 |
|
| 2986 |
// Do a bulk-read of the DOM positions and sizes needed to draw the |
| 2987 |
// view, so that we don't interleave reading and writing to the DOM. |
| 2988 |
function getDimensions(cm) { |
| 2989 |
var d = cm.display, left = {}, width = {}; |
| 2990 |
var gutterLeft = d.gutters.clientLeft; |
| 2991 |
for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) { |
| 2992 |
left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft; |
| 2993 |
width[cm.options.gutters[i]] = n.clientWidth; |
| 2994 |
} |
| 2995 |
return {fixedPos: compensateForHScroll(d), |
| 2996 |
gutterTotalWidth: d.gutters.offsetWidth, |
| 2997 |
gutterLeft: left, |
| 2998 |
gutterWidth: width, |
| 2999 |
wrapperWidth: d.wrapper.clientWidth} |
| 3000 |
} |
| 3001 |
|
| 3002 |
// Computes display.scroller.scrollLeft + display.gutters.offsetWidth, |
| 3003 |
// but using getBoundingClientRect to get a sub-pixel-accurate |
| 3004 |
// result. |
| 3005 |
function compensateForHScroll(display) { |
| 3006 |
return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left |
| 3007 |
} |
| 3008 |
|
| 3009 |
// Returns a function that estimates the height of a line, to use as |
| 3010 |
// first approximation until the line becomes visible (and is thus |
| 3011 |
// properly measurable). |
| 3012 |
function estimateHeight(cm) { |
| 3013 |
var th = textHeight(cm.display), wrapping = cm.options.lineWrapping; |
| 3014 |
var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3); |
| 3015 |
return function (line) { |
| 3016 |
if (lineIsHidden(cm.doc, line)) { return 0 } |
| 3017 |
|
| 3018 |
var widgetsHeight = 0; |
| 3019 |
if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) { |
| 3020 |
if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; } |
| 3021 |
} } |
| 3022 |
|
| 3023 |
if (wrapping) |
| 3024 |
{ return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th } |
| 3025 |
else |
| 3026 |
{ return widgetsHeight + th } |
| 3027 |
} |
| 3028 |
} |
| 3029 |
|
| 3030 |
function estimateLineHeights(cm) { |
| 3031 |
var doc = cm.doc, est = estimateHeight(cm); |
| 3032 |
doc.iter(function (line) { |
| 3033 |
var estHeight = est(line); |
| 3034 |
if (estHeight != line.height) { updateLineHeight(line, estHeight); } |
| 3035 |
}); |
| 3036 |
} |
| 3037 |
|
| 3038 |
// Given a mouse event, find the corresponding position. If liberal |
| 3039 |
// is false, it checks whether a gutter or scrollbar was clicked, |
| 3040 |
// and returns null if it was. forRect is used by rectangular |
| 3041 |
// selections, and tries to estimate a character position even for |
| 3042 |
// coordinates beyond the right of the text. |
| 3043 |
function posFromMouse(cm, e, liberal, forRect) { |
| 3044 |
var display = cm.display; |
| 3045 |
if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null } |
| 3046 |
|
| 3047 |
var x, y, space = display.lineSpace.getBoundingClientRect(); |
| 3048 |
// Fails unpredictably on IE[67] when mouse is dragged around quickly. |
| 3049 |
try { x = e.clientX - space.left; y = e.clientY - space.top; } |
| 3050 |
catch (e) { return null } |
| 3051 |
var coords = coordsChar(cm, x, y), line; |
| 3052 |
if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) { |
| 3053 |
var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length; |
| 3054 |
coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff)); |
| 3055 |
} |
| 3056 |
return coords |
| 3057 |
} |
| 3058 |
|
| 3059 |
// Find the view element corresponding to a given line. Return null |
| 3060 |
// when the line isn't visible. |
| 3061 |
function findViewIndex(cm, n) { |
| 3062 |
if (n >= cm.display.viewTo) { return null } |
| 3063 |
n -= cm.display.viewFrom; |
| 3064 |
if (n < 0) { return null } |
| 3065 |
var view = cm.display.view; |
| 3066 |
for (var i = 0; i < view.length; i++) { |
| 3067 |
n -= view[i].size; |
| 3068 |
if (n < 0) { return i } |
| 3069 |
} |
| 3070 |
} |
| 3071 |
|
| 3072 |
function updateSelection(cm) { |
| 3073 |
cm.display.input.showSelection(cm.display.input.prepareSelection()); |
| 3074 |
} |
| 3075 |
|
| 3076 |
function prepareSelection(cm, primary) { |
| 3077 |
if ( primary === void 0 ) primary = true; |
| 3078 |
|
| 3079 |
var doc = cm.doc, result = {}; |
| 3080 |
var curFragment = result.cursors = document.createDocumentFragment(); |
| 3081 |
var selFragment = result.selection = document.createDocumentFragment(); |
| 3082 |
|
| 3083 |
for (var i = 0; i < doc.sel.ranges.length; i++) { |
| 3084 |
if (!primary && i == doc.sel.primIndex) { continue } |
| 3085 |
var range$$1 = doc.sel.ranges[i]; |
| 3086 |
if (range$$1.from().line >= cm.display.viewTo || range$$1.to().line < cm.display.viewFrom) { continue } |
| 3087 |
var collapsed = range$$1.empty(); |
| 3088 |
if (collapsed || cm.options.showCursorWhenSelecting) |
| 3089 |
{ drawSelectionCursor(cm, range$$1.head, curFragment); } |
| 3090 |
if (!collapsed) |
| 3091 |
{ drawSelectionRange(cm, range$$1, selFragment); } |
| 3092 |
} |
| 3093 |
return result |
| 3094 |
} |
| 3095 |
|
| 3096 |
// Draws a cursor for the given range |
| 3097 |
function drawSelectionCursor(cm, head, output) { |
| 3098 |
var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine); |
| 3099 |
|
| 3100 |
var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor")); |
| 3101 |
cursor.style.left = pos.left + "px"; |
| 3102 |
cursor.style.top = pos.top + "px"; |
| 3103 |
cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"; |
| 3104 |
|
| 3105 |
if (pos.other) { |
| 3106 |
// Secondary cursor, shown when on a 'jump' in bi-directional text |
| 3107 |
var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor")); |
| 3108 |
otherCursor.style.display = ""; |
| 3109 |
otherCursor.style.left = pos.other.left + "px"; |
| 3110 |
otherCursor.style.top = pos.other.top + "px"; |
| 3111 |
otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"; |
| 3112 |
} |
| 3113 |
} |
| 3114 |
|
| 3115 |
function cmpCoords(a, b) { return a.top - b.top || a.left - b.left } |
| 3116 |
|
| 3117 |
// Draws the given range as a highlighted selection |
| 3118 |
function drawSelectionRange(cm, range$$1, output) { |
| 3119 |
var display = cm.display, doc = cm.doc; |
| 3120 |
var fragment = document.createDocumentFragment(); |
| 3121 |
var padding = paddingH(cm.display), leftSide = padding.left; |
| 3122 |
var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right; |
| 3123 |
var docLTR = doc.direction == "ltr"; |
| 3124 |
|
| 3125 |
function add(left, top, width, bottom) { |
| 3126 |
if (top < 0) { top = 0; } |
| 3127 |
top = Math.round(top); |
| 3128 |
bottom = Math.round(bottom); |
| 3129 |
fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n height: " + (bottom - top) + "px"))); |
| 3130 |
} |
| 3131 |
|
| 3132 |
function drawForLine(line, fromArg, toArg) { |
| 3133 |
var lineObj = getLine(doc, line); |
| 3134 |
var lineLen = lineObj.text.length; |
| 3135 |
var start, end; |
| 3136 |
function coords(ch, bias) { |
| 3137 |
return charCoords(cm, Pos(line, ch), "div", lineObj, bias) |
| 3138 |
} |
| 3139 |
|
| 3140 |
function wrapX(pos, dir, side) { |
| 3141 |
var extent = wrappedLineExtentChar(cm, lineObj, null, pos); |
| 3142 |
var prop = (dir == "ltr") == (side == "after") ? "left" : "right"; |
| 3143 |
var ch = side == "after" ? extent.begin : extent.end - (/\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1); |
| 3144 |
return coords(ch, prop)[prop] |
| 3145 |
} |
| 3146 |
|
| 3147 |
var order = getOrder(lineObj, doc.direction); |
| 3148 |
iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) { |
| 3149 |
var ltr = dir == "ltr"; |
| 3150 |
var fromPos = coords(from, ltr ? "left" : "right"); |
| 3151 |
var toPos = coords(to - 1, ltr ? "right" : "left"); |
| 3152 |
|
| 3153 |
var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen; |
| 3154 |
var first = i == 0, last = !order || i == order.length - 1; |
| 3155 |
if (toPos.top - fromPos.top <= 3) { // Single line |
| 3156 |
var openLeft = (docLTR ? openStart : openEnd) && first; |
| 3157 |
var openRight = (docLTR ? openEnd : openStart) && last; |
| 3158 |
var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left; |
| 3159 |
var right = openRight ? rightSide : (ltr ? toPos : fromPos).right; |
| 3160 |
add(left, fromPos.top, right - left, fromPos.bottom); |
| 3161 |
} else { // Multiple lines |
| 3162 |
var topLeft, topRight, botLeft, botRight; |
| 3163 |
if (ltr) { |
| 3164 |
topLeft = docLTR && openStart && first ? leftSide : fromPos.left; |
| 3165 |
topRight = docLTR ? rightSide : wrapX(from, dir, "before"); |
| 3166 |
botLeft = docLTR ? leftSide : wrapX(to, dir, "after"); |
| 3167 |
botRight = docLTR && openEnd && last ? rightSide : toPos.right; |
| 3168 |
} else { |
| 3169 |
topLeft = !docLTR ? leftSide : wrapX(from, dir, "before"); |
| 3170 |
topRight = !docLTR && openStart && first ? rightSide : fromPos.right; |
| 3171 |
botLeft = !docLTR && openEnd && last ? leftSide : toPos.left; |
| 3172 |
botRight = !docLTR ? rightSide : wrapX(to, dir, "after"); |
| 3173 |
} |
| 3174 |
add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom); |
| 3175 |
if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top); } |
| 3176 |
add(botLeft, toPos.top, botRight - botLeft, toPos.bottom); |
| 3177 |
} |
| 3178 |
|
| 3179 |
if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; } |
| 3180 |
if (cmpCoords(toPos, start) < 0) { start = toPos; } |
| 3181 |
if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; } |
| 3182 |
if (cmpCoords(toPos, end) < 0) { end = toPos; } |
| 3183 |
}); |
| 3184 |
return {start: start, end: end} |
| 3185 |
} |
| 3186 |
|
| 3187 |
var sFrom = range$$1.from(), sTo = range$$1.to(); |
| 3188 |
if (sFrom.line == sTo.line) { |
| 3189 |
drawForLine(sFrom.line, sFrom.ch, sTo.ch); |
| 3190 |
} else { |
| 3191 |
var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line); |
| 3192 |
var singleVLine = visualLine(fromLine) == visualLine(toLine); |
| 3193 |
var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end; |
| 3194 |
var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start; |
| 3195 |
if (singleVLine) { |
| 3196 |
if (leftEnd.top < rightStart.top - 2) { |
| 3197 |
add(leftEnd.right, leftEnd.top, null, leftEnd.bottom); |
| 3198 |
add(leftSide, rightStart.top, rightStart.left, rightStart.bottom); |
| 3199 |
} else { |
| 3200 |
add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom); |
| 3201 |
} |
| 3202 |
} |
| 3203 |
if (leftEnd.bottom < rightStart.top) |
| 3204 |
{ add(leftSide, leftEnd.bottom, null, rightStart.top); } |
| 3205 |
} |
| 3206 |
|
| 3207 |
output.appendChild(fragment); |
| 3208 |
} |
| 3209 |
|
| 3210 |
// Cursor-blinking |
| 3211 |
function restartBlink(cm) { |
| 3212 |
if (!cm.state.focused) { return } |
| 3213 |
var display = cm.display; |
| 3214 |
clearInterval(display.blinker); |
| 3215 |
var on = true; |
| 3216 |
display.cursorDiv.style.visibility = ""; |
| 3217 |
if (cm.options.cursorBlinkRate > 0) |
| 3218 |
{ display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; }, |
| 3219 |
cm.options.cursorBlinkRate); } |
| 3220 |
else if (cm.options.cursorBlinkRate < 0) |
| 3221 |
{ display.cursorDiv.style.visibility = "hidden"; } |
| 3222 |
} |
| 3223 |
|
| 3224 |
function ensureFocus(cm) { |
| 3225 |
if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); } |
| 3226 |
} |
| 3227 |
|
| 3228 |
function delayBlurEvent(cm) { |
| 3229 |
cm.state.delayingBlurEvent = true; |
| 3230 |
setTimeout(function () { if (cm.state.delayingBlurEvent) { |
| 3231 |
cm.state.delayingBlurEvent = false; |
| 3232 |
onBlur(cm); |
| 3233 |
} }, 100); |
| 3234 |
} |
| 3235 |
|
| 3236 |
function onFocus(cm, e) { |
| 3237 |
if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false; } |
| 3238 |
|
| 3239 |
if (cm.options.readOnly == "nocursor") { return } |
| 3240 |
if (!cm.state.focused) { |
| 3241 |
signal(cm, "focus", cm, e); |
| 3242 |
cm.state.focused = true; |
| 3243 |
addClass(cm.display.wrapper, "CodeMirror-focused"); |
| 3244 |
// This test prevents this from firing when a context |
| 3245 |
// menu is closed (since the input reset would kill the |
| 3246 |
// select-all detection hack) |
| 3247 |
if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) { |
| 3248 |
cm.display.input.reset(); |
| 3249 |
if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730 |
| 3250 |
} |
| 3251 |
cm.display.input.receivedFocus(); |
| 3252 |
} |
| 3253 |
restartBlink(cm); |
| 3254 |
} |
| 3255 |
function onBlur(cm, e) { |
| 3256 |
if (cm.state.delayingBlurEvent) { return } |
| 3257 |
|
| 3258 |
if (cm.state.focused) { |
| 3259 |
signal(cm, "blur", cm, e); |
| 3260 |
cm.state.focused = false; |
| 3261 |
rmClass(cm.display.wrapper, "CodeMirror-focused"); |
| 3262 |
} |
| 3263 |
clearInterval(cm.display.blinker); |
| 3264 |
setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150); |
| 3265 |
} |
| 3266 |
|
| 3267 |
// Read the actual heights of the rendered lines, and update their |
| 3268 |
// stored heights to match. |
| 3269 |
function updateHeightsInViewport(cm) { |
| 3270 |
var display = cm.display; |
| 3271 |
var prevBottom = display.lineDiv.offsetTop; |
| 3272 |
for (var i = 0; i < display.view.length; i++) { |
| 3273 |
var cur = display.view[i], wrapping = cm.options.lineWrapping; |
| 3274 |
var height = (void 0), width = 0; |
| 3275 |
if (cur.hidden) { continue } |
| 3276 |
if (ie && ie_version < 8) { |
| 3277 |
var bot = cur.node.offsetTop + cur.node.offsetHeight; |
| 3278 |
height = bot - prevBottom; |
| 3279 |
prevBottom = bot; |
| 3280 |
} else { |
| 3281 |
var box = cur.node.getBoundingClientRect(); |
| 3282 |
height = box.bottom - box.top; |
| 3283 |
// Check that lines don't extend past the right of the current |
| 3284 |
// editor width |
| 3285 |
if (!wrapping && cur.text.firstChild) |
| 3286 |
{ width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1; } |
| 3287 |
} |
| 3288 |
var diff = cur.line.height - height; |
| 3289 |
if (height < 2) { height = textHeight(display); } |
| 3290 |
if (diff > .005 || diff < -.005) { |
| 3291 |
updateLineHeight(cur.line, height); |
| 3292 |
updateWidgetHeight(cur.line); |
| 3293 |
if (cur.rest) { for (var j = 0; j < cur.rest.length; j++) |
| 3294 |
{ updateWidgetHeight(cur.rest[j]); } } |
| 3295 |
} |
| 3296 |
if (width > cm.display.sizerWidth) { |
| 3297 |
var chWidth = Math.ceil(width / charWidth(cm.display)); |
| 3298 |
if (chWidth > cm.display.maxLineLength) { |
| 3299 |
cm.display.maxLineLength = chWidth; |
| 3300 |
cm.display.maxLine = cur.line; |
| 3301 |
cm.display.maxLineChanged = true; |
| 3302 |
} |
| 3303 |
} |
| 3304 |
} |
| 3305 |
} |
| 3306 |
|
| 3307 |
// Read and store the height of line widgets associated with the |
| 3308 |
// given line. |
| 3309 |
function updateWidgetHeight(line) { |
| 3310 |
if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) { |
| 3311 |
var w = line.widgets[i], parent = w.node.parentNode; |
| 3312 |
if (parent) { w.height = parent.offsetHeight; } |
| 3313 |
} } |
| 3314 |
} |
| 3315 |
|
| 3316 |
// Compute the lines that are visible in a given viewport (defaults |
| 3317 |
// the the current scroll position). viewport may contain top, |
| 3318 |
// height, and ensure (see op.scrollToPos) properties. |
| 3319 |
function visibleLines(display, doc, viewport) { |
| 3320 |
var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop; |
| 3321 |
top = Math.floor(top - paddingTop(display)); |
| 3322 |
var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight; |
| 3323 |
|
| 3324 |
var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom); |
| 3325 |
// Ensure is a {from: {line, ch}, to: {line, ch}} object, and |
| 3326 |
// forces those lines into the viewport (if possible). |
| 3327 |
if (viewport && viewport.ensure) { |
| 3328 |
var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line; |
| 3329 |
if (ensureFrom < from) { |
| 3330 |
from = ensureFrom; |
| 3331 |
to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight); |
| 3332 |
} else if (Math.min(ensureTo, doc.lastLine()) >= to) { |
| 3333 |
from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight); |
| 3334 |
to = ensureTo; |
| 3335 |
} |
| 3336 |
} |
| 3337 |
return {from: from, to: Math.max(to, from + 1)} |
| 3338 |
} |
| 3339 |
|
| 3340 |
// Re-align line numbers and gutter marks to compensate for |
| 3341 |
// horizontal scrolling. |
| 3342 |
function alignHorizontally(cm) { |
| 3343 |
var display = cm.display, view = display.view; |
| 3344 |
if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return } |
| 3345 |
var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft; |
| 3346 |
var gutterW = display.gutters.offsetWidth, left = comp + "px"; |
| 3347 |
for (var i = 0; i < view.length; i++) { if (!view[i].hidden) { |
| 3348 |
if (cm.options.fixedGutter) { |
| 3349 |
if (view[i].gutter) |
| 3350 |
{ view[i].gutter.style.left = left; } |
| 3351 |
if (view[i].gutterBackground) |
| 3352 |
{ view[i].gutterBackground.style.left = left; } |
| 3353 |
} |
| 3354 |
var align = view[i].alignable; |
| 3355 |
if (align) { for (var j = 0; j < align.length; j++) |
| 3356 |
{ align[j].style.left = left; } } |
| 3357 |
} } |
| 3358 |
if (cm.options.fixedGutter) |
| 3359 |
{ display.gutters.style.left = (comp + gutterW) + "px"; } |
| 3360 |
} |
| 3361 |
|
| 3362 |
// Used to ensure that the line number gutter is still the right |
| 3363 |
// size for the current document size. Returns true when an update |
| 3364 |
// is needed. |
| 3365 |
function maybeUpdateLineNumberWidth(cm) { |
| 3366 |
if (!cm.options.lineNumbers) { return false } |
| 3367 |
var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display; |
| 3368 |
if (last.length != display.lineNumChars) { |
| 3369 |
var test = display.measure.appendChild(elt("div", [elt("div", last)], |
| 3370 |
"CodeMirror-linenumber CodeMirror-gutter-elt")); |
| 3371 |
var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW; |
| 3372 |
display.lineGutter.style.width = ""; |
| 3373 |
display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1; |
| 3374 |
display.lineNumWidth = display.lineNumInnerWidth + padding; |
| 3375 |
display.lineNumChars = display.lineNumInnerWidth ? last.length : -1; |
| 3376 |
display.lineGutter.style.width = display.lineNumWidth + "px"; |
| 3377 |
updateGutterSpace(cm); |
| 3378 |
return true |
| 3379 |
} |
| 3380 |
return false |
| 3381 |
} |
| 3382 |
|
| 3383 |
// SCROLLING THINGS INTO VIEW |
| 3384 |
|
| 3385 |
// If an editor sits on the top or bottom of the window, partially |
| 3386 |
// scrolled out of view, this ensures that the cursor is visible. |
| 3387 |
function maybeScrollWindow(cm, rect) { |
| 3388 |
if (signalDOMEvent(cm, "scrollCursorIntoView")) { return } |
| 3389 |
|
| 3390 |
var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null; |
| 3391 |
if (rect.top + box.top < 0) { doScroll = true; } |
| 3392 |
else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false; } |
| 3393 |
if (doScroll != null && !phantom) { |
| 3394 |
var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n top: " + (rect.top - display.viewOffset - paddingTop(cm.display)) + "px;\n height: " + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + "px;\n left: " + (rect.left) + "px; width: " + (Math.max(2, rect.right - rect.left)) + "px;")); |
| 3395 |
cm.display.lineSpace.appendChild(scrollNode); |
| 3396 |
scrollNode.scrollIntoView(doScroll); |
| 3397 |
cm.display.lineSpace.removeChild(scrollNode); |
| 3398 |
} |
| 3399 |
} |
| 3400 |
|
| 3401 |
// Scroll a given position into view (immediately), verifying that |
| 3402 |
// it actually became visible (as line heights are accurately |
| 3403 |
// measured, the position of something may 'drift' during drawing). |
| 3404 |
function scrollPosIntoView(cm, pos, end, margin) { |
| 3405 |
if (margin == null) { margin = 0; } |
| 3406 |
var rect; |
| 3407 |
if (!cm.options.lineWrapping && pos == end) { |
| 3408 |
// Set pos and end to the cursor positions around the character pos sticks to |
| 3409 |
// If pos.sticky == "before", that is around pos.ch - 1, otherwise around pos.ch |
| 3410 |
// If pos == Pos(_, 0, "before"), pos and end are unchanged |
| 3411 |
pos = pos.ch ? Pos(pos.line, pos.sticky == "before" ? pos.ch - 1 : pos.ch, "after") : pos; |
| 3412 |
end = pos.sticky == "before" ? Pos(pos.line, pos.ch + 1, "before") : pos; |
| 3413 |
} |
| 3414 |
for (var limit = 0; limit < 5; limit++) { |
| 3415 |
var changed = false; |
| 3416 |
var coords = cursorCoords(cm, pos); |
| 3417 |
var endCoords = !end || end == pos ? coords : cursorCoords(cm, end); |
| 3418 |
rect = {left: Math.min(coords.left, endCoords.left), |
| 3419 |
top: Math.min(coords.top, endCoords.top) - margin, |
| 3420 |
right: Math.max(coords.left, endCoords.left), |
| 3421 |
bottom: Math.max(coords.bottom, endCoords.bottom) + margin}; |
| 3422 |
var scrollPos = calculateScrollPos(cm, rect); |
| 3423 |
var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft; |
| 3424 |
if (scrollPos.scrollTop != null) { |
| 3425 |
updateScrollTop(cm, scrollPos.scrollTop); |
| 3426 |
if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; } |
| 3427 |
} |
| 3428 |
if (scrollPos.scrollLeft != null) { |
| 3429 |
setScrollLeft(cm, scrollPos.scrollLeft); |
| 3430 |
if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; } |
| 3431 |
} |
| 3432 |
if (!changed) { break } |
| 3433 |
} |
| 3434 |
return rect |
| 3435 |
} |
| 3436 |
|
| 3437 |
// Scroll a given set of coordinates into view (immediately). |
| 3438 |
function scrollIntoView(cm, rect) { |
| 3439 |
var scrollPos = calculateScrollPos(cm, rect); |
| 3440 |
if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); } |
| 3441 |
if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); } |
| 3442 |
} |
| 3443 |
|
| 3444 |
// Calculate a new scroll position needed to scroll the given |
| 3445 |
// rectangle into view. Returns an object with scrollTop and |
| 3446 |
// scrollLeft properties. When these are undefined, the |
| 3447 |
// vertical/horizontal position does not need to be adjusted. |
| 3448 |
function calculateScrollPos(cm, rect) { |
| 3449 |
var display = cm.display, snapMargin = textHeight(cm.display); |
| 3450 |
if (rect.top < 0) { rect.top = 0; } |
| 3451 |
var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop; |
| 3452 |
var screen = displayHeight(cm), result = {}; |
| 3453 |
if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; } |
| 3454 |
var docBottom = cm.doc.height + paddingVert(display); |
| 3455 |
var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin; |
| 3456 |
if (rect.top < screentop) { |
| 3457 |
result.scrollTop = atTop ? 0 : rect.top; |
| 3458 |
} else if (rect.bottom > screentop + screen) { |
| 3459 |
var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen); |
| 3460 |
if (newTop != screentop) { result.scrollTop = newTop; } |
| 3461 |
} |
| 3462 |
|
| 3463 |
var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft; |
| 3464 |
var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0); |
| 3465 |
var tooWide = rect.right - rect.left > screenw; |
| 3466 |
if (tooWide) { rect.right = rect.left + screenw; } |
| 3467 |
if (rect.left < 10) |
| 3468 |
{ result.scrollLeft = 0; } |
| 3469 |
else if (rect.left < screenleft) |
| 3470 |
{ result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10)); } |
| 3471 |
else if (rect.right > screenw + screenleft - 3) |
| 3472 |
{ result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; } |
| 3473 |
return result |
| 3474 |
} |
| 3475 |
|
| 3476 |
// Store a relative adjustment to the scroll position in the current |
| 3477 |
// operation (to be applied when the operation finishes). |
| 3478 |
function addToScrollTop(cm, top) { |
| 3479 |
if (top == null) { return } |
| 3480 |
resolveScrollToPos(cm); |
| 3481 |
cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top; |
| 3482 |
} |
| 3483 |
|
| 3484 |
// Make sure that at the end of the operation the current cursor is |
| 3485 |
// shown. |
| 3486 |
function ensureCursorVisible(cm) { |
| 3487 |
resolveScrollToPos(cm); |
| 3488 |
var cur = cm.getCursor(); |
| 3489 |
cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin}; |
| 3490 |
} |
| 3491 |
|
| 3492 |
function scrollToCoords(cm, x, y) { |
| 3493 |
if (x != null || y != null) { resolveScrollToPos(cm); } |
| 3494 |
if (x != null) { cm.curOp.scrollLeft = x; } |
| 3495 |
if (y != null) { cm.curOp.scrollTop = y; } |
| 3496 |
} |
| 3497 |
|
| 3498 |
function scrollToRange(cm, range$$1) { |
| 3499 |
resolveScrollToPos(cm); |
| 3500 |
cm.curOp.scrollToPos = range$$1; |
| 3501 |
} |
| 3502 |
|
| 3503 |
// When an operation has its scrollToPos property set, and another |
| 3504 |
// scroll action is applied before the end of the operation, this |
| 3505 |
// 'simulates' scrolling that position into view in a cheap way, so |
| 3506 |
// that the effect of intermediate scroll commands is not ignored. |
| 3507 |
function resolveScrollToPos(cm) { |
| 3508 |
var range$$1 = cm.curOp.scrollToPos; |
| 3509 |
if (range$$1) { |
| 3510 |
cm.curOp.scrollToPos = null; |
| 3511 |
var from = estimateCoords(cm, range$$1.from), to = estimateCoords(cm, range$$1.to); |
| 3512 |
scrollToCoordsRange(cm, from, to, range$$1.margin); |
| 3513 |
} |
| 3514 |
} |
| 3515 |
|
| 3516 |
function scrollToCoordsRange(cm, from, to, margin) { |
| 3517 |
var sPos = calculateScrollPos(cm, { |
| 3518 |
left: Math.min(from.left, to.left), |
| 3519 |
top: Math.min(from.top, to.top) - margin, |
| 3520 |
right: Math.max(from.right, to.right), |
| 3521 |
bottom: Math.max(from.bottom, to.bottom) + margin |
| 3522 |
}); |
| 3523 |
scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop); |
| 3524 |
} |
| 3525 |
|
| 3526 |
// Sync the scrollable area and scrollbars, ensure the viewport |
| 3527 |
// covers the visible area. |
| 3528 |
function updateScrollTop(cm, val) { |
| 3529 |
if (Math.abs(cm.doc.scrollTop - val) < 2) { return } |
| 3530 |
if (!gecko) { updateDisplaySimple(cm, {top: val}); } |
| 3531 |
setScrollTop(cm, val, true); |
| 3532 |
if (gecko) { updateDisplaySimple(cm); } |
| 3533 |
startWorker(cm, 100); |
| 3534 |
} |
| 3535 |
|
| 3536 |
function setScrollTop(cm, val, forceScroll) { |
| 3537 |
val = Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val); |
| 3538 |
if (cm.display.scroller.scrollTop == val && !forceScroll) { return } |
| 3539 |
cm.doc.scrollTop = val; |
| 3540 |
cm.display.scrollbars.setScrollTop(val); |
| 3541 |
if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; } |
| 3542 |
} |
| 3543 |
|
| 3544 |
// Sync scroller and scrollbar, ensure the gutter elements are |
| 3545 |
// aligned. |
| 3546 |
function setScrollLeft(cm, val, isScroller, forceScroll) { |
| 3547 |
val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth); |
| 3548 |
if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return } |
| 3549 |
cm.doc.scrollLeft = val; |
| 3550 |
alignHorizontally(cm); |
| 3551 |
if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; } |
| 3552 |
cm.display.scrollbars.setScrollLeft(val); |
| 3553 |
} |
| 3554 |
|
| 3555 |
// SCROLLBARS |
| 3556 |
|
| 3557 |
// Prepare DOM reads needed to update the scrollbars. Done in one |
| 3558 |
// shot to minimize update/measure roundtrips. |
| 3559 |
function measureForScrollbars(cm) { |
| 3560 |
var d = cm.display, gutterW = d.gutters.offsetWidth; |
| 3561 |
var docH = Math.round(cm.doc.height + paddingVert(cm.display)); |
| 3562 |
return { |
| 3563 |
clientHeight: d.scroller.clientHeight, |
| 3564 |
viewHeight: d.wrapper.clientHeight, |
| 3565 |
scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth, |
| 3566 |
viewWidth: d.wrapper.clientWidth, |
| 3567 |
barLeft: cm.options.fixedGutter ? gutterW : 0, |
| 3568 |
docHeight: docH, |
| 3569 |
scrollHeight: docH + scrollGap(cm) + d.barHeight, |
| 3570 |
nativeBarWidth: d.nativeBarWidth, |
| 3571 |
gutterWidth: gutterW |
| 3572 |
} |
| 3573 |
} |
| 3574 |
|
| 3575 |
var NativeScrollbars = function(place, scroll, cm) { |
| 3576 |
this.cm = cm; |
| 3577 |
var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar"); |
| 3578 |
var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar"); |
| 3579 |
vert.tabIndex = horiz.tabIndex = -1; |
| 3580 |
place(vert); place(horiz); |
| 3581 |
|
| 3582 |
on(vert, "scroll", function () { |
| 3583 |
if (vert.clientHeight) { scroll(vert.scrollTop, "vertical"); } |
| 3584 |
}); |
| 3585 |
on(horiz, "scroll", function () { |
| 3586 |
if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal"); } |
| 3587 |
}); |
| 3588 |
|
| 3589 |
this.checkedZeroWidth = false; |
| 3590 |
// Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8). |
| 3591 |
if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; } |
| 3592 |
}; |
| 3593 |
|
| 3594 |
NativeScrollbars.prototype.update = function (measure) { |
| 3595 |
var needsH = measure.scrollWidth > measure.clientWidth + 1; |
| 3596 |
var needsV = measure.scrollHeight > measure.clientHeight + 1; |
| 3597 |
var sWidth = measure.nativeBarWidth; |
| 3598 |
|
| 3599 |
if (needsV) { |
| 3600 |
this.vert.style.display = "block"; |
| 3601 |
this.vert.style.bottom = needsH ? sWidth + "px" : "0"; |
| 3602 |
var totalHeight = measure.viewHeight - (needsH ? sWidth : 0); |
| 3603 |
// A bug in IE8 can cause this value to be negative, so guard it. |
| 3604 |
this.vert.firstChild.style.height = |
| 3605 |
Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px"; |
| 3606 |
} else { |
| 3607 |
this.vert.style.display = ""; |
| 3608 |
this.vert.firstChild.style.height = "0"; |
| 3609 |
} |
| 3610 |
|
| 3611 |
if (needsH) { |
| 3612 |
this.horiz.style.display = "block"; |
| 3613 |
this.horiz.style.right = needsV ? sWidth + "px" : "0"; |
| 3614 |
this.horiz.style.left = measure.barLeft + "px"; |
| 3615 |
var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0); |
| 3616 |
this.horiz.firstChild.style.width = |
| 3617 |
Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px"; |
| 3618 |
} else { |
| 3619 |
this.horiz.style.display = ""; |
| 3620 |
this.horiz.firstChild.style.width = "0"; |
| 3621 |
} |
| 3622 |
|
| 3623 |
if (!this.checkedZeroWidth && measure.clientHeight > 0) { |
| 3624 |
if (sWidth == 0) { this.zeroWidthHack(); } |
| 3625 |
this.checkedZeroWidth = true; |
| 3626 |
} |
| 3627 |
|
| 3628 |
return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0} |
| 3629 |
}; |
| 3630 |
|
| 3631 |
NativeScrollbars.prototype.setScrollLeft = function (pos) { |
| 3632 |
if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; } |
| 3633 |
if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz"); } |
| 3634 |
}; |
| 3635 |
|
| 3636 |
NativeScrollbars.prototype.setScrollTop = function (pos) { |
| 3637 |
if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; } |
| 3638 |
if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, "vert"); } |
| 3639 |
}; |
| 3640 |
|
| 3641 |
NativeScrollbars.prototype.zeroWidthHack = function () { |
| 3642 |
var w = mac && !mac_geMountainLion ? "12px" : "18px"; |
| 3643 |
this.horiz.style.height = this.vert.style.width = w; |
| 3644 |
this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none"; |
| 3645 |
this.disableHoriz = new Delayed; |
| 3646 |
this.disableVert = new Delayed; |
| 3647 |
}; |
| 3648 |
|
| 3649 |
NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) { |
| 3650 |
bar.style.pointerEvents = "auto"; |
| 3651 |
function maybeDisable() { |
| 3652 |
// To find out whether the scrollbar is still visible, we |
| 3653 |
// check whether the element under the pixel in the bottom |
| 3654 |
// right corner of the scrollbar box is the scrollbar box |
| 3655 |
// itself (when the bar is still visible) or its filler child |
| 3656 |
// (when the bar is hidden). If it is still visible, we keep |
| 3657 |
// it enabled, if it's hidden, we disable pointer events. |
| 3658 |
var box = bar.getBoundingClientRect(); |
| 3659 |
var elt$$1 = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2) |
| 3660 |
: document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1); |
| 3661 |
if (elt$$1 != bar) { bar.style.pointerEvents = "none"; } |
| 3662 |
else { delay.set(1000, maybeDisable); } |
| 3663 |
} |
| 3664 |
delay.set(1000, maybeDisable); |
| 3665 |
}; |
| 3666 |
|
| 3667 |
NativeScrollbars.prototype.clear = function () { |
| 3668 |
var parent = this.horiz.parentNode; |
| 3669 |
parent.removeChild(this.horiz); |
| 3670 |
parent.removeChild(this.vert); |
| 3671 |
}; |
| 3672 |
|
| 3673 |
var NullScrollbars = function () {}; |
| 3674 |
|
| 3675 |
NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} }; |
| 3676 |
NullScrollbars.prototype.setScrollLeft = function () {}; |
| 3677 |
NullScrollbars.prototype.setScrollTop = function () {}; |
| 3678 |
NullScrollbars.prototype.clear = function () {}; |
| 3679 |
|
| 3680 |
function updateScrollbars(cm, measure) { |
| 3681 |
if (!measure) { measure = measureForScrollbars(cm); } |
| 3682 |
var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight; |
| 3683 |
updateScrollbarsInner(cm, measure); |
| 3684 |
for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) { |
| 3685 |
if (startWidth != cm.display.barWidth && cm.options.lineWrapping) |
| 3686 |
{ updateHeightsInViewport(cm); } |
| 3687 |
updateScrollbarsInner(cm, measureForScrollbars(cm)); |
| 3688 |
startWidth = cm.display.barWidth; startHeight = cm.display.barHeight; |
| 3689 |
} |
| 3690 |
} |
| 3691 |
|
| 3692 |
// Re-synchronize the fake scrollbars with the actual size of the |
| 3693 |
// content. |
| 3694 |
function updateScrollbarsInner(cm, measure) { |
| 3695 |
var d = cm.display; |
| 3696 |
var sizes = d.scrollbars.update(measure); |
| 3697 |
|
| 3698 |
d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px"; |
| 3699 |
d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px"; |
| 3700 |
d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent"; |
| 3701 |
|
| 3702 |
if (sizes.right && sizes.bottom) { |
| 3703 |
d.scrollbarFiller.style.display = "block"; |
| 3704 |
d.scrollbarFiller.style.height = sizes.bottom + "px"; |
| 3705 |
d.scrollbarFiller.style.width = sizes.right + "px"; |
| 3706 |
} else { d.scrollbarFiller.style.display = ""; } |
| 3707 |
if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) { |
| 3708 |
d.gutterFiller.style.display = "block"; |
| 3709 |
d.gutterFiller.style.height = sizes.bottom + "px"; |
| 3710 |
d.gutterFiller.style.width = measure.gutterWidth + "px"; |
| 3711 |
} else { d.gutterFiller.style.display = ""; } |
| 3712 |
} |
| 3713 |
|
| 3714 |
var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars}; |
| 3715 |
|
| 3716 |
function initScrollbars(cm) { |
| 3717 |
if (cm.display.scrollbars) { |
| 3718 |
cm.display.scrollbars.clear(); |
| 3719 |
if (cm.display.scrollbars.addClass) |
| 3720 |
{ rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); } |
| 3721 |
} |
| 3722 |
|
| 3723 |
cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) { |
| 3724 |
cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller); |
| 3725 |
// Prevent clicks in the scrollbars from killing focus |
| 3726 |
on(node, "mousedown", function () { |
| 3727 |
if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); } |
| 3728 |
}); |
| 3729 |
node.setAttribute("cm-not-content", "true"); |
| 3730 |
}, function (pos, axis) { |
| 3731 |
if (axis == "horizontal") { setScrollLeft(cm, pos); } |
| 3732 |
else { updateScrollTop(cm, pos); } |
| 3733 |
}, cm); |
| 3734 |
if (cm.display.scrollbars.addClass) |
| 3735 |
{ addClass(cm.display.wrapper, cm.display.scrollbars.addClass); } |
| 3736 |
} |
| 3737 |
|
| 3738 |
// Operations are used to wrap a series of changes to the editor |
| 3739 |
// state in such a way that each change won't have to update the |
| 3740 |
// cursor and display (which would be awkward, slow, and |
| 3741 |
// error-prone). Instead, display updates are batched and then all |
| 3742 |
// combined and executed at once. |
| 3743 |
|
| 3744 |
var nextOpId = 0; |
| 3745 |
// Start a new operation. |
| 3746 |
function startOperation(cm) { |
| 3747 |
cm.curOp = { |
| 3748 |
cm: cm, |
| 3749 |
viewChanged: false, // Flag that indicates that lines might need to be redrawn |
| 3750 |
startHeight: cm.doc.height, // Used to detect need to update scrollbar |
| 3751 |
forceUpdate: false, // Used to force a redraw |
| 3752 |
updateInput: 0, // Whether to reset the input textarea |
| 3753 |
typing: false, // Whether this reset should be careful to leave existing text (for compositing) |
| 3754 |
changeObjs: null, // Accumulated changes, for firing change events |
| 3755 |
cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on |
| 3756 |
cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already |
| 3757 |
selectionChanged: false, // Whether the selection needs to be redrawn |
| 3758 |
updateMaxLine: false, // Set when the widest line needs to be determined anew |
| 3759 |
scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet |
| 3760 |
scrollToPos: null, // Used to scroll to a specific position |
| 3761 |
focus: false, |
| 3762 |
id: ++nextOpId // Unique ID |
| 3763 |
}; |
| 3764 |
pushOperation(cm.curOp); |
| 3765 |
} |
| 3766 |
|
| 3767 |
// Finish an operation, updating the display and signalling delayed events |
| 3768 |
function endOperation(cm) { |
| 3769 |
var op = cm.curOp; |
| 3770 |
if (op) { finishOperation(op, function (group) { |
| 3771 |
for (var i = 0; i < group.ops.length; i++) |
| 3772 |
{ group.ops[i].cm.curOp = null; } |
| 3773 |
endOperations(group); |
| 3774 |
}); } |
| 3775 |
} |
| 3776 |
|
| 3777 |
// The DOM updates done when an operation finishes are batched so |
| 3778 |
// that the minimum number of relayouts are required. |
| 3779 |
function endOperations(group) { |
| 3780 |
var ops = group.ops; |
| 3781 |
for (var i = 0; i < ops.length; i++) // Read DOM |
| 3782 |
{ endOperation_R1(ops[i]); } |
| 3783 |
for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe) |
| 3784 |
{ endOperation_W1(ops[i$1]); } |
| 3785 |
for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM |
| 3786 |
{ endOperation_R2(ops[i$2]); } |
| 3787 |
for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe) |
| 3788 |
{ endOperation_W2(ops[i$3]); } |
| 3789 |
for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM |
| 3790 |
{ endOperation_finish(ops[i$4]); } |
| 3791 |
} |
| 3792 |
|
| 3793 |
function endOperation_R1(op) { |
| 3794 |
var cm = op.cm, display = cm.display; |
| 3795 |
maybeClipScrollbars(cm); |
| 3796 |
if (op.updateMaxLine) { findMaxLine(cm); } |
| 3797 |
|
| 3798 |
op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null || |
| 3799 |
op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom || |
| 3800 |
op.scrollToPos.to.line >= display.viewTo) || |
| 3801 |
display.maxLineChanged && cm.options.lineWrapping; |
| 3802 |
op.update = op.mustUpdate && |
| 3803 |
new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate); |
| 3804 |
} |
| 3805 |
|
| 3806 |
function endOperation_W1(op) { |
| 3807 |
op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update); |
| 3808 |
} |
| 3809 |
|
| 3810 |
function endOperation_R2(op) { |
| 3811 |
var cm = op.cm, display = cm.display; |
| 3812 |
if (op.updatedDisplay) { updateHeightsInViewport(cm); } |
| 3813 |
|
| 3814 |
op.barMeasure = measureForScrollbars(cm); |
| 3815 |
|
| 3816 |
// If the max line changed since it was last measured, measure it, |
| 3817 |
// and ensure the document's width matches it. |
| 3818 |
// updateDisplay_W2 will use these properties to do the actual resizing |
| 3819 |
if (display.maxLineChanged && !cm.options.lineWrapping) { |
| 3820 |
op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3; |
| 3821 |
cm.display.sizerWidth = op.adjustWidthTo; |
| 3822 |
op.barMeasure.scrollWidth = |
| 3823 |
Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth); |
| 3824 |
op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm)); |
| 3825 |
} |
| 3826 |
|
| 3827 |
if (op.updatedDisplay || op.selectionChanged) |
| 3828 |
{ op.preparedSelection = display.input.prepareSelection(); } |
| 3829 |
} |
| 3830 |
|
| 3831 |
function endOperation_W2(op) { |
| 3832 |
var cm = op.cm; |
| 3833 |
|
| 3834 |
if (op.adjustWidthTo != null) { |
| 3835 |
cm.display.sizer.style.minWidth = op.adjustWidthTo + "px"; |
| 3836 |
if (op.maxScrollLeft < cm.doc.scrollLeft) |
| 3837 |
{ setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); } |
| 3838 |
cm.display.maxLineChanged = false; |
| 3839 |
} |
| 3840 |
|
| 3841 |
var takeFocus = op.focus && op.focus == activeElt(); |
| 3842 |
if (op.preparedSelection) |
| 3843 |
{ cm.display.input.showSelection(op.preparedSelection, takeFocus); } |
| 3844 |
if (op.updatedDisplay || op.startHeight != cm.doc.height) |
| 3845 |
{ updateScrollbars(cm, op.barMeasure); } |
| 3846 |
if (op.updatedDisplay) |
| 3847 |
{ setDocumentHeight(cm, op.barMeasure); } |
| 3848 |
|
| 3849 |
if (op.selectionChanged) { restartBlink(cm); } |
| 3850 |
|
| 3851 |
if (cm.state.focused && op.updateInput) |
| 3852 |
{ cm.display.input.reset(op.typing); } |
| 3853 |
if (takeFocus) { ensureFocus(op.cm); } |
| 3854 |
} |
| 3855 |
|
| 3856 |
function endOperation_finish(op) { |
| 3857 |
var cm = op.cm, display = cm.display, doc = cm.doc; |
| 3858 |
|
| 3859 |
if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); } |
| 3860 |
|
| 3861 |
// Abort mouse wheel delta measurement, when scrolling explicitly |
| 3862 |
if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos)) |
| 3863 |
{ display.wheelStartX = display.wheelStartY = null; } |
| 3864 |
|
| 3865 |
// Propagate the scroll position to the actual DOM scroller |
| 3866 |
if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); } |
| 3867 |
|
| 3868 |
if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); } |
| 3869 |
// If we need to scroll a specific position into view, do so. |
| 3870 |
if (op.scrollToPos) { |
| 3871 |
var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from), |
| 3872 |
clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin); |
| 3873 |
maybeScrollWindow(cm, rect); |
| 3874 |
} |
| 3875 |
|
| 3876 |
// Fire events for markers that are hidden/unidden by editing or |
| 3877 |
// undoing |
| 3878 |
var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers; |
| 3879 |
if (hidden) { for (var i = 0; i < hidden.length; ++i) |
| 3880 |
{ if (!hidden[i].lines.length) { signal(hidden[i], "hide"); } } } |
| 3881 |
if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1) |
| 3882 |
{ if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide"); } } } |
| 3883 |
|
| 3884 |
if (display.wrapper.offsetHeight) |
| 3885 |
{ doc.scrollTop = cm.display.scroller.scrollTop; } |
| 3886 |
|
| 3887 |
// Fire change events, and delayed event handlers |
| 3888 |
if (op.changeObjs) |
| 3889 |
{ signal(cm, "changes", cm, op.changeObjs); } |
| 3890 |
if (op.update) |
| 3891 |
{ op.update.finish(); } |
| 3892 |
} |
| 3893 |
|
| 3894 |
// Run the given function in an operation |
| 3895 |
function runInOp(cm, f) { |
| 3896 |
if (cm.curOp) { return f() } |
| 3897 |
startOperation(cm); |
| 3898 |
try { return f() } |
| 3899 |
finally { endOperation(cm); } |
| 3900 |
} |
| 3901 |
// Wraps a function in an operation. Returns the wrapped function. |
| 3902 |
function operation(cm, f) { |
| 3903 |
return function() { |
| 3904 |
if (cm.curOp) { return f.apply(cm, arguments) } |
| 3905 |
startOperation(cm); |
| 3906 |
try { return f.apply(cm, arguments) } |
| 3907 |
finally { endOperation(cm); } |
| 3908 |
} |
| 3909 |
} |
| 3910 |
// Used to add methods to editor and doc instances, wrapping them in |
| 3911 |
// operations. |
| 3912 |
function methodOp(f) { |
| 3913 |
return function() { |
| 3914 |
if (this.curOp) { return f.apply(this, arguments) } |
| 3915 |
startOperation(this); |
| 3916 |
try { return f.apply(this, arguments) } |
| 3917 |
finally { endOperation(this); } |
| 3918 |
} |
| 3919 |
} |
| 3920 |
function docMethodOp(f) { |
| 3921 |
return function() { |
| 3922 |
var cm = this.cm; |
| 3923 |
if (!cm || cm.curOp) { return f.apply(this, arguments) } |
| 3924 |
startOperation(cm); |
| 3925 |
try { return f.apply(this, arguments) } |
| 3926 |
finally { endOperation(cm); } |
| 3927 |
} |
| 3928 |
} |
| 3929 |
|
| 3930 |
// Updates the display.view data structure for a given change to the |
| 3931 |
// document. From and to are in pre-change coordinates. Lendiff is |
| 3932 |
// the amount of lines added or subtracted by the change. This is |
| 3933 |
// used for changes that span multiple lines, or change the way |
| 3934 |
// lines are divided into visual lines. regLineChange (below) |
| 3935 |
// registers single-line changes. |
| 3936 |
function regChange(cm, from, to, lendiff) { |
| 3937 |
if (from == null) { from = cm.doc.first; } |
| 3938 |
if (to == null) { to = cm.doc.first + cm.doc.size; } |
| 3939 |
if (!lendiff) { lendiff = 0; } |
| 3940 |
|
| 3941 |
var display = cm.display; |
| 3942 |
if (lendiff && to < display.viewTo && |
| 3943 |
(display.updateLineNumbers == null || display.updateLineNumbers > from)) |
| 3944 |
{ display.updateLineNumbers = from; } |
| 3945 |
|
| 3946 |
cm.curOp.viewChanged = true; |
| 3947 |
|
| 3948 |
if (from >= display.viewTo) { // Change after |
| 3949 |
if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo) |
| 3950 |
{ resetView(cm); } |
| 3951 |
} else if (to <= display.viewFrom) { // Change before |
| 3952 |
if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) { |
| 3953 |
resetView(cm); |
| 3954 |
} else { |
| 3955 |
display.viewFrom += lendiff; |
| 3956 |
display.viewTo += lendiff; |
| 3957 |
} |
| 3958 |
} else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap |
| 3959 |
resetView(cm); |
| 3960 |
} else if (from <= display.viewFrom) { // Top overlap |
| 3961 |
var cut = viewCuttingPoint(cm, to, to + lendiff, 1); |
| 3962 |
if (cut) { |
| 3963 |
display.view = display.view.slice(cut.index); |
| 3964 |
display.viewFrom = cut.lineN; |
| 3965 |
display.viewTo += lendiff; |
| 3966 |
} else { |
| 3967 |
resetView(cm); |
| 3968 |
} |
| 3969 |
} else if (to >= display.viewTo) { // Bottom overlap |
| 3970 |
var cut$1 = viewCuttingPoint(cm, from, from, -1); |
| 3971 |
if (cut$1) { |
| 3972 |
display.view = display.view.slice(0, cut$1.index); |
| 3973 |
display.viewTo = cut$1.lineN; |
| 3974 |
} else { |
| 3975 |
resetView(cm); |
| 3976 |
} |
| 3977 |
} else { // Gap in the middle |
| 3978 |
var cutTop = viewCuttingPoint(cm, from, from, -1); |
| 3979 |
var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1); |
| 3980 |
if (cutTop && cutBot) { |
| 3981 |
display.view = display.view.slice(0, cutTop.index) |
| 3982 |
.concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN)) |
| 3983 |
.concat(display.view.slice(cutBot.index)); |
| 3984 |
display.viewTo += lendiff; |
| 3985 |
} else { |
| 3986 |
resetView(cm); |
| 3987 |
} |
| 3988 |
} |
| 3989 |
|
| 3990 |
var ext = display.externalMeasured; |
| 3991 |
if (ext) { |
| 3992 |
if (to < ext.lineN) |
| 3993 |
{ ext.lineN += lendiff; } |
| 3994 |
else if (from < ext.lineN + ext.size) |
| 3995 |
{ display.externalMeasured = null; } |
| 3996 |
} |
| 3997 |
} |
| 3998 |
|
| 3999 |
// Register a change to a single line. Type must be one of "text", |
| 4000 |
// "gutter", "class", "widget" |
| 4001 |
function regLineChange(cm, line, type) { |
| 4002 |
cm.curOp.viewChanged = true; |
| 4003 |
var display = cm.display, ext = cm.display.externalMeasured; |
| 4004 |
if (ext && line >= ext.lineN && line < ext.lineN + ext.size) |
| 4005 |
{ display.externalMeasured = null; } |
| 4006 |
|
| 4007 |
if (line < display.viewFrom || line >= display.viewTo) { return } |
| 4008 |
var lineView = display.view[findViewIndex(cm, line)]; |
| 4009 |
if (lineView.node == null) { return } |
| 4010 |
var arr = lineView.changes || (lineView.changes = []); |
| 4011 |
if (indexOf(arr, type) == -1) { arr.push(type); } |
| 4012 |
} |
| 4013 |
|
| 4014 |
// Clear the view. |
| 4015 |
function resetView(cm) { |
| 4016 |
cm.display.viewFrom = cm.display.viewTo = cm.doc.first; |
| 4017 |
cm.display.view = []; |
| 4018 |
cm.display.viewOffset = 0; |
| 4019 |
} |
| 4020 |
|
| 4021 |
function viewCuttingPoint(cm, oldN, newN, dir) { |
| 4022 |
var index = findViewIndex(cm, oldN), diff, view = cm.display.view; |
| 4023 |
if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size) |
| 4024 |
{ return {index: index, lineN: newN} } |
| 4025 |
var n = cm.display.viewFrom; |
| 4026 |
for (var i = 0; i < index; i++) |
| 4027 |
{ n += view[i].size; } |
| 4028 |
if (n != oldN) { |
| 4029 |
if (dir > 0) { |
| 4030 |
if (index == view.length - 1) { return null } |
| 4031 |
diff = (n + view[index].size) - oldN; |
| 4032 |
index++; |
| 4033 |
} else { |
| 4034 |
diff = n - oldN; |
| 4035 |
} |
| 4036 |
oldN += diff; newN += diff; |
| 4037 |
} |
| 4038 |
while (visualLineNo(cm.doc, newN) != newN) { |
| 4039 |
if (index == (dir < 0 ? 0 : view.length - 1)) { return null } |
| 4040 |
newN += dir * view[index - (dir < 0 ? 1 : 0)].size; |
| 4041 |
index += dir; |
| 4042 |
} |
| 4043 |
return {index: index, lineN: newN} |
| 4044 |
} |
| 4045 |
|
| 4046 |
// Force the view to cover a given range, adding empty view element |
| 4047 |
// or clipping off existing ones as needed. |
| 4048 |
function adjustView(cm, from, to) { |
| 4049 |
var display = cm.display, view = display.view; |
| 4050 |
if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) { |
| 4051 |
display.view = buildViewArray(cm, from, to); |
| 4052 |
display.viewFrom = from; |
| 4053 |
} else { |
| 4054 |
if (display.viewFrom > from) |
| 4055 |
{ display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); } |
| 4056 |
else if (display.viewFrom < from) |
| 4057 |
{ display.view = display.view.slice(findViewIndex(cm, from)); } |
| 4058 |
display.viewFrom = from; |
| 4059 |
if (display.viewTo < to) |
| 4060 |
{ display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); } |
| 4061 |
else if (display.viewTo > to) |
| 4062 |
{ display.view = display.view.slice(0, findViewIndex(cm, to)); } |
| 4063 |
} |
| 4064 |
display.viewTo = to; |
| 4065 |
} |
| 4066 |
|
| 4067 |
// Count the number of lines in the view whose DOM representation is |
| 4068 |
// out of date (or nonexistent). |
| 4069 |
function countDirtyView(cm) { |
| 4070 |
var view = cm.display.view, dirty = 0; |
| 4071 |
for (var i = 0; i < view.length; i++) { |
| 4072 |
var lineView = view[i]; |
| 4073 |
if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; } |
| 4074 |
} |
| 4075 |
return dirty |
| 4076 |
} |
| 4077 |
|
| 4078 |
// HIGHLIGHT WORKER |
| 4079 |
|
| 4080 |
function startWorker(cm, time) { |
| 4081 |
if (cm.doc.highlightFrontier < cm.display.viewTo) |
| 4082 |
{ cm.state.highlight.set(time, bind(highlightWorker, cm)); } |
| 4083 |
} |
| 4084 |
|
| 4085 |
function highlightWorker(cm) { |
| 4086 |
var doc = cm.doc; |
| 4087 |
if (doc.highlightFrontier >= cm.display.viewTo) { return } |
| 4088 |
var end = +new Date + cm.options.workTime; |
| 4089 |
var context = getContextBefore(cm, doc.highlightFrontier); |
| 4090 |
var changedLines = []; |
| 4091 |
|
| 4092 |
doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) { |
| 4093 |
if (context.line >= cm.display.viewFrom) { // Visible |
| 4094 |
var oldStyles = line.styles; |
| 4095 |
var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null; |
| 4096 |
var highlighted = highlightLine(cm, line, context, true); |
| 4097 |
if (resetState) { context.state = resetState; } |
| 4098 |
line.styles = highlighted.styles; |
| 4099 |
var oldCls = line.styleClasses, newCls = highlighted.classes; |
| 4100 |
if (newCls) { line.styleClasses = newCls; } |
| 4101 |
else if (oldCls) { line.styleClasses = null; } |
| 4102 |
var ischange = !oldStyles || oldStyles.length != line.styles.length || |
| 4103 |
oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass); |
| 4104 |
for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; } |
| 4105 |
if (ischange) { changedLines.push(context.line); } |
| 4106 |
line.stateAfter = context.save(); |
| 4107 |
context.nextLine(); |
| 4108 |
} else { |
| 4109 |
if (line.text.length <= cm.options.maxHighlightLength) |
| 4110 |
{ processLine(cm, line.text, context); } |
| 4111 |
line.stateAfter = context.line % 5 == 0 ? context.save() : null; |
| 4112 |
context.nextLine(); |
| 4113 |
} |
| 4114 |
if (+new Date > end) { |
| 4115 |
startWorker(cm, cm.options.workDelay); |
| 4116 |
return true |
| 4117 |
} |
| 4118 |
}); |
| 4119 |
doc.highlightFrontier = context.line; |
| 4120 |
doc.modeFrontier = Math.max(doc.modeFrontier, context.line); |
| 4121 |
if (changedLines.length) { runInOp(cm, function () { |
| 4122 |
for (var i = 0; i < changedLines.length; i++) |
| 4123 |
{ regLineChange(cm, changedLines[i], "text"); } |
| 4124 |
}); } |
| 4125 |
} |
| 4126 |
|
| 4127 |
// DISPLAY DRAWING |
| 4128 |
|
| 4129 |
var DisplayUpdate = function(cm, viewport, force) { |
| 4130 |
var display = cm.display; |
| 4131 |
|
| 4132 |
this.viewport = viewport; |
| 4133 |
// Store some values that we'll need later (but don't want to force a relayout for) |
| 4134 |
this.visible = visibleLines(display, cm.doc, viewport); |
| 4135 |
this.editorIsHidden = !display.wrapper.offsetWidth; |
| 4136 |
this.wrapperHeight = display.wrapper.clientHeight; |
| 4137 |
this.wrapperWidth = display.wrapper.clientWidth; |
| 4138 |
this.oldDisplayWidth = displayWidth(cm); |
| 4139 |
this.force = force; |
| 4140 |
this.dims = getDimensions(cm); |
| 4141 |
this.events = []; |
| 4142 |
}; |
| 4143 |
|
| 4144 |
DisplayUpdate.prototype.signal = function (emitter, type) { |
| 4145 |
if (hasHandler(emitter, type)) |
| 4146 |
{ this.events.push(arguments); } |
| 4147 |
}; |
| 4148 |
DisplayUpdate.prototype.finish = function () { |
| 4149 |
var this$1 = this; |
| 4150 |
|
| 4151 |
for (var i = 0; i < this.events.length; i++) |
| 4152 |
{ signal.apply(null, this$1.events[i]); } |
| 4153 |
}; |
| 4154 |
|
| 4155 |
function maybeClipScrollbars(cm) { |
| 4156 |
var display = cm.display; |
| 4157 |
if (!display.scrollbarsClipped && display.scroller.offsetWidth) { |
| 4158 |
display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth; |
| 4159 |
display.heightForcer.style.height = scrollGap(cm) + "px"; |
| 4160 |
display.sizer.style.marginBottom = -display.nativeBarWidth + "px"; |
| 4161 |
display.sizer.style.borderRightWidth = scrollGap(cm) + "px"; |
| 4162 |
display.scrollbarsClipped = true; |
| 4163 |
} |
| 4164 |
} |
| 4165 |
|
| 4166 |
function selectionSnapshot(cm) { |
| 4167 |
if (cm.hasFocus()) { return null } |
| 4168 |
var active = activeElt(); |
| 4169 |
if (!active || !contains(cm.display.lineDiv, active)) { return null } |
| 4170 |
var result = {activeElt: active}; |
| 4171 |
if (window.getSelection) { |
| 4172 |
var sel = window.getSelection(); |
| 4173 |
if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) { |
| 4174 |
result.anchorNode = sel.anchorNode; |
| 4175 |
result.anchorOffset = sel.anchorOffset; |
| 4176 |
result.focusNode = sel.focusNode; |
| 4177 |
result.focusOffset = sel.focusOffset; |
| 4178 |
} |
| 4179 |
} |
| 4180 |
return result |
| 4181 |
} |
| 4182 |
|
| 4183 |
function restoreSelection(snapshot) { |
| 4184 |
if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return } |
| 4185 |
snapshot.activeElt.focus(); |
| 4186 |
if (snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) { |
| 4187 |
var sel = window.getSelection(), range$$1 = document.createRange(); |
| 4188 |
range$$1.setEnd(snapshot.anchorNode, snapshot.anchorOffset); |
| 4189 |
range$$1.collapse(false); |
| 4190 |
sel.removeAllRanges(); |
| 4191 |
sel.addRange(range$$1); |
| 4192 |
sel.extend(snapshot.focusNode, snapshot.focusOffset); |
| 4193 |
} |
| 4194 |
} |
| 4195 |
|
| 4196 |
// Does the actual updating of the line display. Bails out |
| 4197 |
// (returning false) when there is nothing to be done and forced is |
| 4198 |
// false. |
| 4199 |
function updateDisplayIfNeeded(cm, update) { |
| 4200 |
var display = cm.display, doc = cm.doc; |
| 4201 |
|
| 4202 |
if (update.editorIsHidden) { |
| 4203 |
resetView(cm); |
| 4204 |
return false |
| 4205 |
} |
| 4206 |
|
| 4207 |
// Bail out if the visible area is already rendered and nothing changed. |
| 4208 |
if (!update.force && |
| 4209 |
update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo && |
| 4210 |
(display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) && |
| 4211 |
display.renderedView == display.view && countDirtyView(cm) == 0) |
| 4212 |
{ return false } |
| 4213 |
|
| 4214 |
if (maybeUpdateLineNumberWidth(cm)) { |
| 4215 |
resetView(cm); |
| 4216 |
update.dims = getDimensions(cm); |
| 4217 |
} |
| 4218 |
|
| 4219 |
// Compute a suitable new viewport (from & to) |
| 4220 |
var end = doc.first + doc.size; |
| 4221 |
var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first); |
| 4222 |
var to = Math.min(end, update.visible.to + cm.options.viewportMargin); |
| 4223 |
if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); } |
| 4224 |
if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); } |
| 4225 |
if (sawCollapsedSpans) { |
| 4226 |
from = visualLineNo(cm.doc, from); |
| 4227 |
to = visualLineEndNo(cm.doc, to); |
| 4228 |
} |
| 4229 |
|
| 4230 |
var different = from != display.viewFrom || to != display.viewTo || |
| 4231 |
display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth; |
| 4232 |
adjustView(cm, from, to); |
| 4233 |
|
| 4234 |
display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom)); |
| 4235 |
// Position the mover div to align with the current scroll position |
| 4236 |
cm.display.mover.style.top = display.viewOffset + "px"; |
| 4237 |
|
| 4238 |
var toUpdate = countDirtyView(cm); |
| 4239 |
if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view && |
| 4240 |
(display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo)) |
| 4241 |
{ return false } |
| 4242 |
|
| 4243 |
// For big changes, we hide the enclosing element during the |
| 4244 |
// update, since that speeds up the operations on most browsers. |
| 4245 |
var selSnapshot = selectionSnapshot(cm); |
| 4246 |
if (toUpdate > 4) { display.lineDiv.style.display = "none"; } |
| 4247 |
patchDisplay(cm, display.updateLineNumbers, update.dims); |
| 4248 |
if (toUpdate > 4) { display.lineDiv.style.display = ""; } |
| 4249 |
display.renderedView = display.view; |
| 4250 |
// There might have been a widget with a focused element that got |
| 4251 |
// hidden or updated, if so re-focus it. |
| 4252 |
restoreSelection(selSnapshot); |
| 4253 |
|
| 4254 |
// Prevent selection and cursors from interfering with the scroll |
| 4255 |
// width and height. |
| 4256 |
removeChildren(display.cursorDiv); |
| 4257 |
removeChildren(display.selectionDiv); |
| 4258 |
display.gutters.style.height = display.sizer.style.minHeight = 0; |
| 4259 |
|
| 4260 |
if (different) { |
| 4261 |
display.lastWrapHeight = update.wrapperHeight; |
| 4262 |
display.lastWrapWidth = update.wrapperWidth; |
| 4263 |
startWorker(cm, 400); |
| 4264 |
} |
| 4265 |
|
| 4266 |
display.updateLineNumbers = null; |
| 4267 |
|
| 4268 |
return true |
| 4269 |
} |
| 4270 |
|
| 4271 |
function postUpdateDisplay(cm, update) { |
| 4272 |
var viewport = update.viewport; |
| 4273 |
|
| 4274 |
for (var first = true;; first = false) { |
| 4275 |
if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) { |
| 4276 |
// Clip forced viewport to actual scrollable area. |
| 4277 |
if (viewport && viewport.top != null) |
| 4278 |
{ viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; } |
| 4279 |
// Updated line heights might result in the drawn area not |
| 4280 |
// actually covering the viewport. Keep looping until it does. |
| 4281 |
update.visible = visibleLines(cm.display, cm.doc, viewport); |
| 4282 |
if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo) |
| 4283 |
{ break } |
| 4284 |
} |
| 4285 |
if (!updateDisplayIfNeeded(cm, update)) { break } |
| 4286 |
updateHeightsInViewport(cm); |
| 4287 |
var barMeasure = measureForScrollbars(cm); |
| 4288 |
updateSelection(cm); |
| 4289 |
updateScrollbars(cm, barMeasure); |
| 4290 |
setDocumentHeight(cm, barMeasure); |
| 4291 |
update.force = false; |
| 4292 |
} |
| 4293 |
|
| 4294 |
update.signal(cm, "update", cm); |
| 4295 |
if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) { |
| 4296 |
update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo); |
| 4297 |
cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo; |
| 4298 |
} |
| 4299 |
} |
| 4300 |
|
| 4301 |
function updateDisplaySimple(cm, viewport) { |
| 4302 |
var update = new DisplayUpdate(cm, viewport); |
| 4303 |
if (updateDisplayIfNeeded(cm, update)) { |
| 4304 |
updateHeightsInViewport(cm); |
| 4305 |
postUpdateDisplay(cm, update); |
| 4306 |
var barMeasure = measureForScrollbars(cm); |
| 4307 |
updateSelection(cm); |
| 4308 |
updateScrollbars(cm, barMeasure); |
| 4309 |
setDocumentHeight(cm, barMeasure); |
| 4310 |
update.finish(); |
| 4311 |
} |
| 4312 |
} |
| 4313 |
|
| 4314 |
// Sync the actual display DOM structure with display.view, removing |
| 4315 |
// nodes for lines that are no longer in view, and creating the ones |
| 4316 |
// that are not there yet, and updating the ones that are out of |
| 4317 |
// date. |
| 4318 |
function patchDisplay(cm, updateNumbersFrom, dims) { |
| 4319 |
var display = cm.display, lineNumbers = cm.options.lineNumbers; |
| 4320 |
var container = display.lineDiv, cur = container.firstChild; |
| 4321 |
|
| 4322 |
function rm(node) { |
| 4323 |
var next = node.nextSibling; |
| 4324 |
// Works around a throw-scroll bug in OS X Webkit |
| 4325 |
if (webkit && mac && cm.display.currentWheelTarget == node) |
| 4326 |
{ node.style.display = "none"; } |
| 4327 |
else |
| 4328 |
{ node.parentNode.removeChild(node); } |
| 4329 |
return next |
| 4330 |
} |
| 4331 |
|
| 4332 |
var view = display.view, lineN = display.viewFrom; |
| 4333 |
// Loop over the elements in the view, syncing cur (the DOM nodes |
| 4334 |
// in display.lineDiv) with the view as we go. |
| 4335 |
for (var i = 0; i < view.length; i++) { |
| 4336 |
var lineView = view[i]; |
| 4337 |
if (lineView.hidden) ; else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet |
| 4338 |
var node = buildLineElement(cm, lineView, lineN, dims); |
| 4339 |
container.insertBefore(node, cur); |
| 4340 |
} else { // Already drawn |
| 4341 |
while (cur != lineView.node) { cur = rm(cur); } |
| 4342 |
var updateNumber = lineNumbers && updateNumbersFrom != null && |
| 4343 |
updateNumbersFrom <= lineN && lineView.lineNumber; |
| 4344 |
if (lineView.changes) { |
| 4345 |
if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false; } |
| 4346 |
updateLineForChanges(cm, lineView, lineN, dims); |
| 4347 |
} |
| 4348 |
if (updateNumber) { |
| 4349 |
removeChildren(lineView.lineNumber); |
| 4350 |
lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN))); |
| 4351 |
} |
| 4352 |
cur = lineView.node.nextSibling; |
| 4353 |
} |
| 4354 |
lineN += lineView.size; |
| 4355 |
} |
| 4356 |
while (cur) { cur = rm(cur); } |
| 4357 |
} |
| 4358 |
|
| 4359 |
function updateGutterSpace(cm) { |
| 4360 |
var width = cm.display.gutters.offsetWidth; |
| 4361 |
cm.display.sizer.style.marginLeft = width + "px"; |
| 4362 |
} |
| 4363 |
|
| 4364 |
function setDocumentHeight(cm, measure) { |
| 4365 |
cm.display.sizer.style.minHeight = measure.docHeight + "px"; |
| 4366 |
cm.display.heightForcer.style.top = measure.docHeight + "px"; |
| 4367 |
cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px"; |
| 4368 |
} |
| 4369 |
|
| 4370 |
// Rebuild the gutter elements, ensure the margin to the left of the |
| 4371 |
// code matches their width. |
| 4372 |
function updateGutters(cm) { |
| 4373 |
var gutters = cm.display.gutters, specs = cm.options.gutters; |
| 4374 |
removeChildren(gutters); |
| 4375 |
var i = 0; |
| 4376 |
for (; i < specs.length; ++i) { |
| 4377 |
var gutterClass = specs[i]; |
| 4378 |
var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass)); |
| 4379 |
if (gutterClass == "CodeMirror-linenumbers") { |
| 4380 |
cm.display.lineGutter = gElt; |
| 4381 |
gElt.style.width = (cm.display.lineNumWidth || 1) + "px"; |
| 4382 |
} |
| 4383 |
} |
| 4384 |
gutters.style.display = i ? "" : "none"; |
| 4385 |
updateGutterSpace(cm); |
| 4386 |
} |
| 4387 |
|
| 4388 |
// Make sure the gutters options contains the element |
| 4389 |
// "CodeMirror-linenumbers" when the lineNumbers option is true. |
| 4390 |
function setGuttersForLineNumbers(options) { |
| 4391 |
var found = indexOf(options.gutters, "CodeMirror-linenumbers"); |
| 4392 |
if (found == -1 && options.lineNumbers) { |
| 4393 |
options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]); |
| 4394 |
} else if (found > -1 && !options.lineNumbers) { |
| 4395 |
options.gutters = options.gutters.slice(0); |
| 4396 |
options.gutters.splice(found, 1); |
| 4397 |
} |
| 4398 |
} |
| 4399 |
|
| 4400 |
// Since the delta values reported on mouse wheel events are |
| 4401 |
// unstandardized between browsers and even browser versions, and |
| 4402 |
// generally horribly unpredictable, this code starts by measuring |
| 4403 |
// the scroll effect that the first few mouse wheel events have, |
| 4404 |
// and, from that, detects the way it can convert deltas to pixel |
| 4405 |
// offsets afterwards. |
| 4406 |
// |
| 4407 |
// The reason we want to know the amount a wheel event will scroll |
| 4408 |
// is that it gives us a chance to update the display before the |
| 4409 |
// actual scrolling happens, reducing flickering. |
| 4410 |
|
| 4411 |
var wheelSamples = 0, wheelPixelsPerUnit = null; |
| 4412 |
// Fill in a browser-detected starting value on browsers where we |
| 4413 |
// know one. These don't have to be accurate -- the result of them |
| 4414 |
// being wrong would just be a slight flicker on the first wheel |
| 4415 |
// scroll (if it is large enough). |
| 4416 |
if (ie) { wheelPixelsPerUnit = -.53; } |
| 4417 |
else if (gecko) { wheelPixelsPerUnit = 15; } |
| 4418 |
else if (chrome) { wheelPixelsPerUnit = -.7; } |
| 4419 |
else if (safari) { wheelPixelsPerUnit = -1/3; } |
| 4420 |
|
| 4421 |
function wheelEventDelta(e) { |
| 4422 |
var dx = e.wheelDeltaX, dy = e.wheelDeltaY; |
| 4423 |
if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; } |
| 4424 |
if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; } |
| 4425 |
else if (dy == null) { dy = e.wheelDelta; } |
| 4426 |
return {x: dx, y: dy} |
| 4427 |
} |
| 4428 |
function wheelEventPixels(e) { |
| 4429 |
var delta = wheelEventDelta(e); |
| 4430 |
delta.x *= wheelPixelsPerUnit; |
| 4431 |
delta.y *= wheelPixelsPerUnit; |
| 4432 |
return delta |
| 4433 |
} |
| 4434 |
|
| 4435 |
function onScrollWheel(cm, e) { |
| 4436 |
var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y; |
| 4437 |
|
| 4438 |
var display = cm.display, scroll = display.scroller; |
| 4439 |
// Quit if there's nothing to scroll here |
| 4440 |
var canScrollX = scroll.scrollWidth > scroll.clientWidth; |
| 4441 |
var canScrollY = scroll.scrollHeight > scroll.clientHeight; |
| 4442 |
if (!(dx && canScrollX || dy && canScrollY)) { return } |
| 4443 |
|
| 4444 |
// Webkit browsers on OS X abort momentum scrolls when the target |
| 4445 |
// of the scroll event is removed from the scrollable element. |
| 4446 |
// This hack (see related code in patchDisplay) makes sure the |
| 4447 |
// element is kept around. |
| 4448 |
if (dy && mac && webkit) { |
| 4449 |
outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) { |
| 4450 |
for (var i = 0; i < view.length; i++) { |
| 4451 |
if (view[i].node == cur) { |
| 4452 |
cm.display.currentWheelTarget = cur; |
| 4453 |
break outer |
| 4454 |
} |
| 4455 |
} |
| 4456 |
} |
| 4457 |
} |
| 4458 |
|
| 4459 |
// On some browsers, horizontal scrolling will cause redraws to |
| 4460 |
// happen before the gutter has been realigned, causing it to |
| 4461 |
// wriggle around in a most unseemly way. When we have an |
| 4462 |
// estimated pixels/delta value, we just handle horizontal |
| 4463 |
// scrolling entirely here. It'll be slightly off from native, but |
| 4464 |
// better than glitching out. |
| 4465 |
if (dx && !gecko && !presto && wheelPixelsPerUnit != null) { |
| 4466 |
if (dy && canScrollY) |
| 4467 |
{ updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit)); } |
| 4468 |
setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit)); |
| 4469 |
// Only prevent default scrolling if vertical scrolling is |
| 4470 |
// actually possible. Otherwise, it causes vertical scroll |
| 4471 |
// jitter on OSX trackpads when deltaX is small and deltaY |
| 4472 |
// is large (issue #3579) |
| 4473 |
if (!dy || (dy && canScrollY)) |
| 4474 |
{ e_preventDefault(e); } |
| 4475 |
display.wheelStartX = null; // Abort measurement, if in progress |
| 4476 |
return |
| 4477 |
} |
| 4478 |
|
| 4479 |
// 'Project' the visible viewport to cover the area that is being |
| 4480 |
// scrolled into view (if we know enough to estimate it). |
| 4481 |
if (dy && wheelPixelsPerUnit != null) { |
| 4482 |
var pixels = dy * wheelPixelsPerUnit; |
| 4483 |
var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight; |
| 4484 |
if (pixels < 0) { top = Math.max(0, top + pixels - 50); } |
| 4485 |
else { bot = Math.min(cm.doc.height, bot + pixels + 50); } |
| 4486 |
updateDisplaySimple(cm, {top: top, bottom: bot}); |
| 4487 |
} |
| 4488 |
|
| 4489 |
if (wheelSamples < 20) { |
| 4490 |
if (display.wheelStartX == null) { |
| 4491 |
display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop; |
| 4492 |
display.wheelDX = dx; display.wheelDY = dy; |
| 4493 |
setTimeout(function () { |
| 4494 |
if (display.wheelStartX == null) { return } |
| 4495 |
var movedX = scroll.scrollLeft - display.wheelStartX; |
| 4496 |
var movedY = scroll.scrollTop - display.wheelStartY; |
| 4497 |
var sample = (movedY && display.wheelDY && movedY / display.wheelDY) || |
| 4498 |
(movedX && display.wheelDX && movedX / display.wheelDX); |
| 4499 |
display.wheelStartX = display.wheelStartY = null; |
| 4500 |
if (!sample) { return } |
| 4501 |
wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1); |
| 4502 |
++wheelSamples; |
| 4503 |
}, 200); |
| 4504 |
} else { |
| 4505 |
display.wheelDX += dx; display.wheelDY += dy; |
| 4506 |
} |
| 4507 |
} |
| 4508 |
} |
| 4509 |
|
| 4510 |
// Selection objects are immutable. A new one is created every time |
| 4511 |
// the selection changes. A selection is one or more non-overlapping |
| 4512 |
// (and non-touching) ranges, sorted, and an integer that indicates |
| 4513 |
// which one is the primary selection (the one that's scrolled into |
| 4514 |
// view, that getCursor returns, etc). |
| 4515 |
var Selection = function(ranges, primIndex) { |
| 4516 |
this.ranges = ranges; |
| 4517 |
this.primIndex = primIndex; |
| 4518 |
}; |
| 4519 |
|
| 4520 |
Selection.prototype.primary = function () { return this.ranges[this.primIndex] }; |
| 4521 |
|
| 4522 |
Selection.prototype.equals = function (other) { |
| 4523 |
var this$1 = this; |
| 4524 |
|
| 4525 |
if (other == this) { return true } |
| 4526 |
if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false } |
| 4527 |
for (var i = 0; i < this.ranges.length; i++) { |
| 4528 |
var here = this$1.ranges[i], there = other.ranges[i]; |
| 4529 |
if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false } |
| 4530 |
} |
| 4531 |
return true |
| 4532 |
}; |
| 4533 |
|
| 4534 |
Selection.prototype.deepCopy = function () { |
| 4535 |
var this$1 = this; |
| 4536 |
|
| 4537 |
var out = []; |
| 4538 |
for (var i = 0; i < this.ranges.length; i++) |
| 4539 |
{ out[i] = new Range(copyPos(this$1.ranges[i].anchor), copyPos(this$1.ranges[i].head)); } |
| 4540 |
return new Selection(out, this.primIndex) |
| 4541 |
}; |
| 4542 |
|
| 4543 |
Selection.prototype.somethingSelected = function () { |
| 4544 |
var this$1 = this; |
| 4545 |
|
| 4546 |
for (var i = 0; i < this.ranges.length; i++) |
| 4547 |
{ if (!this$1.ranges[i].empty()) { return true } } |
| 4548 |
return false |
| 4549 |
}; |
| 4550 |
|
| 4551 |
Selection.prototype.contains = function (pos, end) { |
| 4552 |
var this$1 = this; |
| 4553 |
|
| 4554 |
if (!end) { end = pos; } |
| 4555 |
for (var i = 0; i < this.ranges.length; i++) { |
| 4556 |
var range = this$1.ranges[i]; |
| 4557 |
if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0) |
| 4558 |
{ return i } |
| 4559 |
} |
| 4560 |
return -1 |
| 4561 |
}; |
| 4562 |
|
| 4563 |
var Range = function(anchor, head) { |
| 4564 |
this.anchor = anchor; this.head = head; |
| 4565 |
}; |
| 4566 |
|
| 4567 |
Range.prototype.from = function () { return minPos(this.anchor, this.head) }; |
| 4568 |
Range.prototype.to = function () { return maxPos(this.anchor, this.head) }; |
| 4569 |
Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch }; |
| 4570 |
|
| 4571 |
// Take an unsorted, potentially overlapping set of ranges, and |
| 4572 |
// build a selection out of it. 'Consumes' ranges array (modifying |
| 4573 |
// it). |
| 4574 |
function normalizeSelection(cm, ranges, primIndex) { |
| 4575 |
var mayTouch = cm && cm.options.selectionsMayTouch; |
| 4576 |
var prim = ranges[primIndex]; |
| 4577 |
ranges.sort(function (a, b) { return cmp(a.from(), b.from()); }); |
| 4578 |
primIndex = indexOf(ranges, prim); |
| 4579 |
for (var i = 1; i < ranges.length; i++) { |
| 4580 |
var cur = ranges[i], prev = ranges[i - 1]; |
| 4581 |
var diff = cmp(prev.to(), cur.from()); |
| 4582 |
if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) { |
| 4583 |
var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to()); |
| 4584 |
var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head; |
| 4585 |
if (i <= primIndex) { --primIndex; } |
| 4586 |
ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to)); |
| 4587 |
} |
| 4588 |
} |
| 4589 |
return new Selection(ranges, primIndex) |
| 4590 |
} |
| 4591 |
|
| 4592 |
function simpleSelection(anchor, head) { |
| 4593 |
return new Selection([new Range(anchor, head || anchor)], 0) |
| 4594 |
} |
| 4595 |
|
| 4596 |
// Compute the position of the end of a change (its 'to' property |
| 4597 |
// refers to the pre-change end). |
| 4598 |
function changeEnd(change) { |
| 4599 |
if (!change.text) { return change.to } |
| 4600 |
return Pos(change.from.line + change.text.length - 1, |
| 4601 |
lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0)) |
| 4602 |
} |
| 4603 |
|
| 4604 |
// Adjust a position to refer to the post-change position of the |
| 4605 |
// same text, or the end of the change if the change covers it. |
| 4606 |
function adjustForChange(pos, change) { |
| 4607 |
if (cmp(pos, change.from) < 0) { return pos } |
| 4608 |
if (cmp(pos, change.to) <= 0) { return changeEnd(change) } |
| 4609 |
|
| 4610 |
var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch; |
| 4611 |
if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; } |
| 4612 |
return Pos(line, ch) |
| 4613 |
} |
| 4614 |
|
| 4615 |
function computeSelAfterChange(doc, change) { |
| 4616 |
var out = []; |
| 4617 |
for (var i = 0; i < doc.sel.ranges.length; i++) { |
| 4618 |
var range = doc.sel.ranges[i]; |
| 4619 |
out.push(new Range(adjustForChange(range.anchor, change), |
| 4620 |
adjustForChange(range.head, change))); |
| 4621 |
} |
| 4622 |
return normalizeSelection(doc.cm, out, doc.sel.primIndex) |
| 4623 |
} |
| 4624 |
|
| 4625 |
function offsetPos(pos, old, nw) { |
| 4626 |
if (pos.line == old.line) |
| 4627 |
{ return Pos(nw.line, pos.ch - old.ch + nw.ch) } |
| 4628 |
else |
| 4629 |
{ return Pos(nw.line + (pos.line - old.line), pos.ch) } |
| 4630 |
} |
| 4631 |
|
| 4632 |
// Used by replaceSelections to allow moving the selection to the |
| 4633 |
// start or around the replaced test. Hint may be "start" or "around". |
| 4634 |
function computeReplacedSel(doc, changes, hint) { |
| 4635 |
var out = []; |
| 4636 |
var oldPrev = Pos(doc.first, 0), newPrev = oldPrev; |
| 4637 |
for (var i = 0; i < changes.length; i++) { |
| 4638 |
var change = changes[i]; |
| 4639 |
var from = offsetPos(change.from, oldPrev, newPrev); |
| 4640 |
var to = offsetPos(changeEnd(change), oldPrev, newPrev); |
| 4641 |
oldPrev = change.to; |
| 4642 |
newPrev = to; |
| 4643 |
if (hint == "around") { |
| 4644 |
var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0; |
| 4645 |
out[i] = new Range(inv ? to : from, inv ? from : to); |
| 4646 |
} else { |
| 4647 |
out[i] = new Range(from, from); |
| 4648 |
} |
| 4649 |
} |
| 4650 |
return new Selection(out, doc.sel.primIndex) |
| 4651 |
} |
| 4652 |
|
| 4653 |
// Used to get the editor into a consistent state again when options change. |
| 4654 |
|
| 4655 |
function loadMode(cm) { |
| 4656 |
cm.doc.mode = getMode(cm.options, cm.doc.modeOption); |
| 4657 |
resetModeState(cm); |
| 4658 |
} |
| 4659 |
|
| 4660 |
function resetModeState(cm) { |
| 4661 |
cm.doc.iter(function (line) { |
| 4662 |
if (line.stateAfter) { line.stateAfter = null; } |
| 4663 |
if (line.styles) { line.styles = null; } |
| 4664 |
}); |
| 4665 |
cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first; |
| 4666 |
startWorker(cm, 100); |
| 4667 |
cm.state.modeGen++; |
| 4668 |
if (cm.curOp) { regChange(cm); } |
| 4669 |
} |
| 4670 |
|
| 4671 |
// DOCUMENT DATA STRUCTURE |
| 4672 |
|
| 4673 |
// By default, updates that start and end at the beginning of a line |
| 4674 |
// are treated specially, in order to make the association of line |
| 4675 |
// widgets and marker elements with the text behave more intuitive. |
| 4676 |
function isWholeLineUpdate(doc, change) { |
| 4677 |
return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" && |
| 4678 |
(!doc.cm || doc.cm.options.wholeLineUpdateBefore) |
| 4679 |
} |
| 4680 |
|
| 4681 |
// Perform a change on the document data structure. |
| 4682 |
function updateDoc(doc, change, markedSpans, estimateHeight$$1) { |
| 4683 |
function spansFor(n) {return markedSpans ? markedSpans[n] : null} |
| 4684 |
function update(line, text, spans) { |
| 4685 |
updateLine(line, text, spans, estimateHeight$$1); |
| 4686 |
signalLater(line, "change", line, change); |
| 4687 |
} |
| 4688 |
function linesFor(start, end) { |
| 4689 |
var result = []; |
| 4690 |
for (var i = start; i < end; ++i) |
| 4691 |
{ result.push(new Line(text[i], spansFor(i), estimateHeight$$1)); } |
| 4692 |
return result |
| 4693 |
} |
| 4694 |
|
| 4695 |
var from = change.from, to = change.to, text = change.text; |
| 4696 |
var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line); |
| 4697 |
var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line; |
| 4698 |
|
| 4699 |
// Adjust the line structure |
| 4700 |
if (change.full) { |
| 4701 |
doc.insert(0, linesFor(0, text.length)); |
| 4702 |
doc.remove(text.length, doc.size - text.length); |
| 4703 |
} else if (isWholeLineUpdate(doc, change)) { |
| 4704 |
// This is a whole-line replace. Treated specially to make |
| 4705 |
// sure line objects move the way they are supposed to. |
| 4706 |
var added = linesFor(0, text.length - 1); |
| 4707 |
update(lastLine, lastLine.text, lastSpans); |
| 4708 |
if (nlines) { doc.remove(from.line, nlines); } |
| 4709 |
if (added.length) { doc.insert(from.line, added); } |
| 4710 |
} else if (firstLine == lastLine) { |
| 4711 |
if (text.length == 1) { |
| 4712 |
update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans); |
| 4713 |
} else { |
| 4714 |
var added$1 = linesFor(1, text.length - 1); |
| 4715 |
added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight$$1)); |
| 4716 |
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); |
| 4717 |
doc.insert(from.line + 1, added$1); |
| 4718 |
} |
| 4719 |
} else if (text.length == 1) { |
| 4720 |
update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0)); |
| 4721 |
doc.remove(from.line + 1, nlines); |
| 4722 |
} else { |
| 4723 |
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); |
| 4724 |
update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans); |
| 4725 |
var added$2 = linesFor(1, text.length - 1); |
| 4726 |
if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); } |
| 4727 |
doc.insert(from.line + 1, added$2); |
| 4728 |
} |
| 4729 |
|
| 4730 |
signalLater(doc, "change", doc, change); |
| 4731 |
} |
| 4732 |
|
| 4733 |
// Call f for all linked documents. |
| 4734 |
function linkedDocs(doc, f, sharedHistOnly) { |
| 4735 |
function propagate(doc, skip, sharedHist) { |
| 4736 |
if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) { |
| 4737 |
var rel = doc.linked[i]; |
| 4738 |
if (rel.doc == skip) { continue } |
| 4739 |
var shared = sharedHist && rel.sharedHist; |
| 4740 |
if (sharedHistOnly && !shared) { continue } |
| 4741 |
f(rel.doc, shared); |
| 4742 |
propagate(rel.doc, doc, shared); |
| 4743 |
} } |
| 4744 |
} |
| 4745 |
propagate(doc, null, true); |
| 4746 |
} |
| 4747 |
|
| 4748 |
// Attach a document to an editor. |
| 4749 |
function attachDoc(cm, doc) { |
| 4750 |
if (doc.cm) { throw new Error("This document is already in use.") } |
| 4751 |
cm.doc = doc; |
| 4752 |
doc.cm = cm; |
| 4753 |
estimateLineHeights(cm); |
| 4754 |
loadMode(cm); |
| 4755 |
setDirectionClass(cm); |
| 4756 |
if (!cm.options.lineWrapping) { findMaxLine(cm); } |
| 4757 |
cm.options.mode = doc.modeOption; |
| 4758 |
regChange(cm); |
| 4759 |
} |
| 4760 |
|
| 4761 |
function setDirectionClass(cm) { |
| 4762 |
(cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl"); |
| 4763 |
} |
| 4764 |
|
| 4765 |
function directionChanged(cm) { |
| 4766 |
runInOp(cm, function () { |
| 4767 |
setDirectionClass(cm); |
| 4768 |
regChange(cm); |
| 4769 |
}); |
| 4770 |
} |
| 4771 |
|
| 4772 |
function History(startGen) { |
| 4773 |
// Arrays of change events and selections. Doing something adds an |
| 4774 |
// event to done and clears undo. Undoing moves events from done |
| 4775 |
// to undone, redoing moves them in the other direction. |
| 4776 |
this.done = []; this.undone = []; |
| 4777 |
this.undoDepth = Infinity; |
| 4778 |
// Used to track when changes can be merged into a single undo |
| 4779 |
// event |
| 4780 |
this.lastModTime = this.lastSelTime = 0; |
| 4781 |
this.lastOp = this.lastSelOp = null; |
| 4782 |
this.lastOrigin = this.lastSelOrigin = null; |
| 4783 |
// Used by the isClean() method |
| 4784 |
this.generation = this.maxGeneration = startGen || 1; |
| 4785 |
} |
| 4786 |
|
| 4787 |
// Create a history change event from an updateDoc-style change |
| 4788 |
// object. |
| 4789 |
function historyChangeFromChange(doc, change) { |
| 4790 |
var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)}; |
| 4791 |
attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); |
| 4792 |
linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true); |
| 4793 |
return histChange |
| 4794 |
} |
| 4795 |
|
| 4796 |
// Pop all selection events off the end of a history array. Stop at |
| 4797 |
// a change event. |
| 4798 |
function clearSelectionEvents(array) { |
| 4799 |
while (array.length) { |
| 4800 |
var last = lst(array); |
| 4801 |
if (last.ranges) { array.pop(); } |
| 4802 |
else { break } |
| 4803 |
} |
| 4804 |
} |
| 4805 |
|
| 4806 |
// Find the top change event in the history. Pop off selection |
| 4807 |
// events that are in the way. |
| 4808 |
function lastChangeEvent(hist, force) { |
| 4809 |
if (force) { |
| 4810 |
clearSelectionEvents(hist.done); |
| 4811 |
return lst(hist.done) |
| 4812 |
} else if (hist.done.length && !lst(hist.done).ranges) { |
| 4813 |
return lst(hist.done) |
| 4814 |
} else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) { |
| 4815 |
hist.done.pop(); |
| 4816 |
return lst(hist.done) |
| 4817 |
} |
| 4818 |
} |
| 4819 |
|
| 4820 |
// Register a change in the history. Merges changes that are within |
| 4821 |
// a single operation, or are close together with an origin that |
| 4822 |
// allows merging (starting with "+") into a single event. |
| 4823 |
function addChangeToHistory(doc, change, selAfter, opId) { |
| 4824 |
var hist = doc.history; |
| 4825 |
hist.undone.length = 0; |
| 4826 |
var time = +new Date, cur; |
| 4827 |
var last; |
| 4828 |
|
| 4829 |
if ((hist.lastOp == opId || |
| 4830 |
hist.lastOrigin == change.origin && change.origin && |
| 4831 |
((change.origin.charAt(0) == "+" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) || |
| 4832 |
change.origin.charAt(0) == "*")) && |
| 4833 |
(cur = lastChangeEvent(hist, hist.lastOp == opId))) { |
| 4834 |
// Merge this change into the last event |
| 4835 |
last = lst(cur.changes); |
| 4836 |
if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) { |
| 4837 |
// Optimized case for simple insertion -- don't want to add |
| 4838 |
// new changesets for every character typed |
| 4839 |
last.to = changeEnd(change); |
| 4840 |
} else { |
| 4841 |
// Add new sub-event |
| 4842 |
cur.changes.push(historyChangeFromChange(doc, change)); |
| 4843 |
} |
| 4844 |
} else { |
| 4845 |
// Can not be merged, start a new event. |
| 4846 |
var before = lst(hist.done); |
| 4847 |
if (!before || !before.ranges) |
| 4848 |
{ pushSelectionToHistory(doc.sel, hist.done); } |
| 4849 |
cur = {changes: [historyChangeFromChange(doc, change)], |
| 4850 |
generation: hist.generation}; |
| 4851 |
hist.done.push(cur); |
| 4852 |
while (hist.done.length > hist.undoDepth) { |
| 4853 |
hist.done.shift(); |
| 4854 |
if (!hist.done[0].ranges) { hist.done.shift(); } |
| 4855 |
} |
| 4856 |
} |
| 4857 |
hist.done.push(selAfter); |
| 4858 |
hist.generation = ++hist.maxGeneration; |
| 4859 |
hist.lastModTime = hist.lastSelTime = time; |
| 4860 |
hist.lastOp = hist.lastSelOp = opId; |
| 4861 |
hist.lastOrigin = hist.lastSelOrigin = change.origin; |
| 4862 |
|
| 4863 |
if (!last) { signal(doc, "historyAdded"); } |
| 4864 |
} |
| 4865 |
|
| 4866 |
function selectionEventCanBeMerged(doc, origin, prev, sel) { |
| 4867 |
var ch = origin.charAt(0); |
| 4868 |
return ch == "*" || |
| 4869 |
ch == "+" && |
| 4870 |
prev.ranges.length == sel.ranges.length && |
| 4871 |
prev.somethingSelected() == sel.somethingSelected() && |
| 4872 |
new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500) |
| 4873 |
} |
| 4874 |
|
| 4875 |
// Called whenever the selection changes, sets the new selection as |
| 4876 |
// the pending selection in the history, and pushes the old pending |
| 4877 |
// selection into the 'done' array when it was significantly |
| 4878 |
// different (in number of selected ranges, emptiness, or time). |
| 4879 |
function addSelectionToHistory(doc, sel, opId, options) { |
| 4880 |
var hist = doc.history, origin = options && options.origin; |
| 4881 |
|
| 4882 |
// A new event is started when the previous origin does not match |
| 4883 |
// the current, or the origins don't allow matching. Origins |
| 4884 |
// starting with * are always merged, those starting with + are |
| 4885 |
// merged when similar and close together in time. |
| 4886 |
if (opId == hist.lastSelOp || |
| 4887 |
(origin && hist.lastSelOrigin == origin && |
| 4888 |
(hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin || |
| 4889 |
selectionEventCanBeMerged(doc, origin, lst(hist.done), sel)))) |
| 4890 |
{ hist.done[hist.done.length - 1] = sel; } |
| 4891 |
else |
| 4892 |
{ pushSelectionToHistory(sel, hist.done); } |
| 4893 |
|
| 4894 |
hist.lastSelTime = +new Date; |
| 4895 |
hist.lastSelOrigin = origin; |
| 4896 |
hist.lastSelOp = opId; |
| 4897 |
if (options && options.clearRedo !== false) |
| 4898 |
{ clearSelectionEvents(hist.undone); } |
| 4899 |
} |
| 4900 |
|
| 4901 |
function pushSelectionToHistory(sel, dest) { |
| 4902 |
var top = lst(dest); |
| 4903 |
if (!(top && top.ranges && top.equals(sel))) |
| 4904 |
{ dest.push(sel); } |
| 4905 |
} |
| 4906 |
|
| 4907 |
// Used to store marked span information in the history. |
| 4908 |
function attachLocalSpans(doc, change, from, to) { |
| 4909 |
var existing = change["spans_" + doc.id], n = 0; |
| 4910 |
doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) { |
| 4911 |
if (line.markedSpans) |
| 4912 |
{ (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; } |
| 4913 |
++n; |
| 4914 |
}); |
| 4915 |
} |
| 4916 |
|
| 4917 |
// When un/re-doing restores text containing marked spans, those |
| 4918 |
// that have been explicitly cleared should not be restored. |
| 4919 |
function removeClearedSpans(spans) { |
| 4920 |
if (!spans) { return null } |
| 4921 |
var out; |
| 4922 |
for (var i = 0; i < spans.length; ++i) { |
| 4923 |
if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } } |
| 4924 |
else if (out) { out.push(spans[i]); } |
| 4925 |
} |
| 4926 |
return !out ? spans : out.length ? out : null |
| 4927 |
} |
| 4928 |
|
| 4929 |
// Retrieve and filter the old marked spans stored in a change event. |
| 4930 |
function getOldSpans(doc, change) { |
| 4931 |
var found = change["spans_" + doc.id]; |
| 4932 |
if (!found) { return null } |
| 4933 |
var nw = []; |
| 4934 |
for (var i = 0; i < change.text.length; ++i) |
| 4935 |
{ nw.push(removeClearedSpans(found[i])); } |
| 4936 |
return nw |
| 4937 |
} |
| 4938 |
|
| 4939 |
// Used for un/re-doing changes from the history. Combines the |
| 4940 |
// result of computing the existing spans with the set of spans that |
| 4941 |
// existed in the history (so that deleting around a span and then |
| 4942 |
// undoing brings back the span). |
| 4943 |
function mergeOldSpans(doc, change) { |
| 4944 |
var old = getOldSpans(doc, change); |
| 4945 |
var stretched = stretchSpansOverChange(doc, change); |
| 4946 |
if (!old) { return stretched } |
| 4947 |
if (!stretched) { return old } |
| 4948 |
|
| 4949 |
for (var i = 0; i < old.length; ++i) { |
| 4950 |
var oldCur = old[i], stretchCur = stretched[i]; |
| 4951 |
if (oldCur && stretchCur) { |
| 4952 |
spans: for (var j = 0; j < stretchCur.length; ++j) { |
| 4953 |
var span = stretchCur[j]; |
| 4954 |
for (var k = 0; k < oldCur.length; ++k) |
| 4955 |
{ if (oldCur[k].marker == span.marker) { continue spans } } |
| 4956 |
oldCur.push(span); |
| 4957 |
} |
| 4958 |
} else if (stretchCur) { |
| 4959 |
old[i] = stretchCur; |
| 4960 |
} |
| 4961 |
} |
| 4962 |
return old |
| 4963 |
} |
| 4964 |
|
| 4965 |
// Used both to provide a JSON-safe object in .getHistory, and, when |
| 4966 |
// detaching a document, to split the history in two |
| 4967 |
function copyHistoryArray(events, newGroup, instantiateSel) { |
| 4968 |
var copy = []; |
| 4969 |
for (var i = 0; i < events.length; ++i) { |
| 4970 |
var event = events[i]; |
| 4971 |
if (event.ranges) { |
| 4972 |
copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event); |
| 4973 |
continue |
| 4974 |
} |
| 4975 |
var changes = event.changes, newChanges = []; |
| 4976 |
copy.push({changes: newChanges}); |
| 4977 |
for (var j = 0; j < changes.length; ++j) { |
| 4978 |
var change = changes[j], m = (void 0); |
| 4979 |
newChanges.push({from: change.from, to: change.to, text: change.text}); |
| 4980 |
if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) { |
| 4981 |
if (indexOf(newGroup, Number(m[1])) > -1) { |
| 4982 |
lst(newChanges)[prop] = change[prop]; |
| 4983 |
delete change[prop]; |
| 4984 |
} |
| 4985 |
} } } |
| 4986 |
} |
| 4987 |
} |
| 4988 |
return copy |
| 4989 |
} |
| 4990 |
|
| 4991 |
// The 'scroll' parameter given to many of these indicated whether |
| 4992 |
// the new cursor position should be scrolled into view after |
| 4993 |
// modifying the selection. |
| 4994 |
|
| 4995 |
// If shift is held or the extend flag is set, extends a range to |
| 4996 |
// include a given position (and optionally a second position). |
| 4997 |
// Otherwise, simply returns the range between the given positions. |
| 4998 |
// Used for cursor motion and such. |
| 4999 |
function extendRange(range, head, other, extend) { |
| 5000 |
if (extend) { |
| 5001 |
var anchor = range.anchor; |
| 5002 |
if (other) { |
| 5003 |
var posBefore = cmp(head, anchor) < 0; |
| 5004 |
if (posBefore != (cmp(other, anchor) < 0)) { |
| 5005 |
anchor = head; |
| 5006 |
head = other; |
| 5007 |
} else if (posBefore != (cmp(head, other) < 0)) { |
| 5008 |
head = other; |
| 5009 |
} |
| 5010 |
} |
| 5011 |
return new Range(anchor, head) |
| 5012 |
} else { |
| 5013 |
return new Range(other || head, head) |
| 5014 |
} |
| 5015 |
} |
| 5016 |
|
| 5017 |
// Extend the primary selection range, discard the rest. |
| 5018 |
function extendSelection(doc, head, other, options, extend) { |
| 5019 |
if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); } |
| 5020 |
setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options); |
| 5021 |
} |
| 5022 |
|
| 5023 |
// Extend all selections (pos is an array of selections with length |
| 5024 |
// equal the number of selections) |
| 5025 |
function extendSelections(doc, heads, options) { |
| 5026 |
var out = []; |
| 5027 |
var extend = doc.cm && (doc.cm.display.shift || doc.extend); |
| 5028 |
for (var i = 0; i < doc.sel.ranges.length; i++) |
| 5029 |
{ out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); } |
| 5030 |
var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex); |
| 5031 |
setSelection(doc, newSel, options); |
| 5032 |
} |
| 5033 |
|
| 5034 |
// Updates a single range in the selection. |
| 5035 |
function replaceOneSelection(doc, i, range, options) { |
| 5036 |
var ranges = doc.sel.ranges.slice(0); |
| 5037 |
ranges[i] = range; |
| 5038 |
setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options); |
| 5039 |
} |
| 5040 |
|
| 5041 |
// Reset the selection to a single range. |
| 5042 |
function setSimpleSelection(doc, anchor, head, options) { |
| 5043 |
setSelection(doc, simpleSelection(anchor, head), options); |
| 5044 |
} |
| 5045 |
|
| 5046 |
// Give beforeSelectionChange handlers a change to influence a |
| 5047 |
// selection update. |
| 5048 |
function filterSelectionChange(doc, sel, options) { |
| 5049 |
var obj = { |
| 5050 |
ranges: sel.ranges, |
| 5051 |
update: function(ranges) { |
| 5052 |
var this$1 = this; |
| 5053 |
|
| 5054 |
this.ranges = []; |
| 5055 |
for (var i = 0; i < ranges.length; i++) |
| 5056 |
{ this$1.ranges[i] = new Range(clipPos(doc, ranges[i].anchor), |
| 5057 |
clipPos(doc, ranges[i].head)); } |
| 5058 |
}, |
| 5059 |
origin: options && options.origin |
| 5060 |
}; |
| 5061 |
signal(doc, "beforeSelectionChange", doc, obj); |
| 5062 |
if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj); } |
| 5063 |
if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) } |
| 5064 |
else { return sel } |
| 5065 |
} |
| 5066 |
|
| 5067 |
function setSelectionReplaceHistory(doc, sel, options) { |
| 5068 |
var done = doc.history.done, last = lst(done); |
| 5069 |
if (last && last.ranges) { |
| 5070 |
done[done.length - 1] = sel; |
| 5071 |
setSelectionNoUndo(doc, sel, options); |
| 5072 |
} else { |
| 5073 |
setSelection(doc, sel, options); |
| 5074 |
} |
| 5075 |
} |
| 5076 |
|
| 5077 |
// Set a new selection. |
| 5078 |
function setSelection(doc, sel, options) { |
| 5079 |
setSelectionNoUndo(doc, sel, options); |
| 5080 |
addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options); |
| 5081 |
} |
| 5082 |
|
| 5083 |
function setSelectionNoUndo(doc, sel, options) { |
| 5084 |
if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange")) |
| 5085 |
{ sel = filterSelectionChange(doc, sel, options); } |
| 5086 |
|
| 5087 |
var bias = options && options.bias || |
| 5088 |
(cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1); |
| 5089 |
setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true)); |
| 5090 |
|
| 5091 |
if (!(options && options.scroll === false) && doc.cm) |
| 5092 |
{ ensureCursorVisible(doc.cm); } |
| 5093 |
} |
| 5094 |
|
| 5095 |
function setSelectionInner(doc, sel) { |
| 5096 |
if (sel.equals(doc.sel)) { return } |
| 5097 |
|
| 5098 |
doc.sel = sel; |
| 5099 |
|
| 5100 |
if (doc.cm) { |
| 5101 |
doc.cm.curOp.updateInput = 1; |
| 5102 |
doc.cm.curOp.selectionChanged = true; |
| 5103 |
signalCursorActivity(doc.cm); |
| 5104 |
} |
| 5105 |
signalLater(doc, "cursorActivity", doc); |
| 5106 |
} |
| 5107 |
|
| 5108 |
// Verify that the selection does not partially select any atomic |
| 5109 |
// marked ranges. |
| 5110 |
function reCheckSelection(doc) { |
| 5111 |
setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false)); |
| 5112 |
} |
| 5113 |
|
| 5114 |
// Return a selection that does not partially select any atomic |
| 5115 |
// ranges. |
| 5116 |
function skipAtomicInSelection(doc, sel, bias, mayClear) { |
| 5117 |
var out; |
| 5118 |
for (var i = 0; i < sel.ranges.length; i++) { |
| 5119 |
var range = sel.ranges[i]; |
| 5120 |
var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i]; |
| 5121 |
var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear); |
| 5122 |
var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear); |
| 5123 |
if (out || newAnchor != range.anchor || newHead != range.head) { |
| 5124 |
if (!out) { out = sel.ranges.slice(0, i); } |
| 5125 |
out[i] = new Range(newAnchor, newHead); |
| 5126 |
} |
| 5127 |
} |
| 5128 |
return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel |
| 5129 |
} |
| 5130 |
|
| 5131 |
function skipAtomicInner(doc, pos, oldPos, dir, mayClear) { |
| 5132 |
var line = getLine(doc, pos.line); |
| 5133 |
if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) { |
| 5134 |
var sp = line.markedSpans[i], m = sp.marker; |
| 5135 |
if ((sp.from == null || (m.inclusiveLeft ? sp.from <= pos.ch : sp.from < pos.ch)) && |
| 5136 |
(sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) { |
| 5137 |
if (mayClear) { |
| 5138 |
signal(m, "beforeCursorEnter"); |
| 5139 |
if (m.explicitlyCleared) { |
| 5140 |
if (!line.markedSpans) { break } |
| 5141 |
else {--i; continue} |
| 5142 |
} |
| 5143 |
} |
| 5144 |
if (!m.atomic) { continue } |
| 5145 |
|
| 5146 |
if (oldPos) { |
| 5147 |
var near = m.find(dir < 0 ? 1 : -1), diff = (void 0); |
| 5148 |
if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft) |
| 5149 |
{ near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); } |
| 5150 |
if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0)) |
| 5151 |
{ return skipAtomicInner(doc, near, pos, dir, mayClear) } |
| 5152 |
} |
| 5153 |
|
| 5154 |
var far = m.find(dir < 0 ? -1 : 1); |
| 5155 |
if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight) |
| 5156 |
{ far = movePos(doc, far, dir, far.line == pos.line ? line : null); } |
| 5157 |
return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null |
| 5158 |
} |
| 5159 |
} } |
| 5160 |
return pos |
| 5161 |
} |
| 5162 |
|
| 5163 |
// Ensure a given position is not inside an atomic range. |
| 5164 |
function skipAtomic(doc, pos, oldPos, bias, mayClear) { |
| 5165 |
var dir = bias || 1; |
| 5166 |
var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) || |
| 5167 |
(!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) || |
| 5168 |
skipAtomicInner(doc, pos, oldPos, -dir, mayClear) || |
| 5169 |
(!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true)); |
| 5170 |
if (!found) { |
| 5171 |
doc.cantEdit = true; |
| 5172 |
return Pos(doc.first, 0) |
| 5173 |
} |
| 5174 |
return found |
| 5175 |
} |
| 5176 |
|
| 5177 |
function movePos(doc, pos, dir, line) { |
| 5178 |
if (dir < 0 && pos.ch == 0) { |
| 5179 |
if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) } |
| 5180 |
else { return null } |
| 5181 |
} else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) { |
| 5182 |
if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) } |
| 5183 |
else { return null } |
| 5184 |
} else { |
| 5185 |
return new Pos(pos.line, pos.ch + dir) |
| 5186 |
} |
| 5187 |
} |
| 5188 |
|
| 5189 |
function selectAll(cm) { |
| 5190 |
cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll); |
| 5191 |
} |
| 5192 |
|
| 5193 |
// UPDATING |
| 5194 |
|
| 5195 |
// Allow "beforeChange" event handlers to influence a change |
| 5196 |
function filterChange(doc, change, update) { |
| 5197 |
var obj = { |
| 5198 |
canceled: false, |
| 5199 |
from: change.from, |
| 5200 |
to: change.to, |
| 5201 |
text: change.text, |
| 5202 |
origin: change.origin, |
| 5203 |
cancel: function () { return obj.canceled = true; } |
| 5204 |
}; |
| 5205 |
if (update) { obj.update = function (from, to, text, origin) { |
| 5206 |
if (from) { obj.from = clipPos(doc, from); } |
| 5207 |
if (to) { obj.to = clipPos(doc, to); } |
| 5208 |
if (text) { obj.text = text; } |
| 5209 |
if (origin !== undefined) { obj.origin = origin; } |
| 5210 |
}; } |
| 5211 |
signal(doc, "beforeChange", doc, obj); |
| 5212 |
if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj); } |
| 5213 |
|
| 5214 |
if (obj.canceled) { |
| 5215 |
if (doc.cm) { doc.cm.curOp.updateInput = 2; } |
| 5216 |
return null |
| 5217 |
} |
| 5218 |
return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin} |
| 5219 |
} |
| 5220 |
|
| 5221 |
// Apply a change to a document, and add it to the document's |
| 5222 |
// history, and propagating it to all linked documents. |
| 5223 |
function makeChange(doc, change, ignoreReadOnly) { |
| 5224 |
if (doc.cm) { |
| 5225 |
if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) } |
| 5226 |
if (doc.cm.state.suppressEdits) { return } |
| 5227 |
} |
| 5228 |
|
| 5229 |
if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) { |
| 5230 |
change = filterChange(doc, change, true); |
| 5231 |
if (!change) { return } |
| 5232 |
} |
| 5233 |
|
| 5234 |
// Possibly split or suppress the update based on the presence |
| 5235 |
// of read-only spans in its range. |
| 5236 |
var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to); |
| 5237 |
if (split) { |
| 5238 |
for (var i = split.length - 1; i >= 0; --i) |
| 5239 |
{ makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text, origin: change.origin}); } |
| 5240 |
} else { |
| 5241 |
makeChangeInner(doc, change); |
| 5242 |
} |
| 5243 |
} |
| 5244 |
|
| 5245 |
function makeChangeInner(doc, change) { |
| 5246 |
if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return } |
| 5247 |
var selAfter = computeSelAfterChange(doc, change); |
| 5248 |
addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN); |
| 5249 |
|
| 5250 |
makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change)); |
| 5251 |
var rebased = []; |
| 5252 |
|
| 5253 |
linkedDocs(doc, function (doc, sharedHist) { |
| 5254 |
if (!sharedHist && indexOf(rebased, doc.history) == -1) { |
| 5255 |
rebaseHist(doc.history, change); |
| 5256 |
rebased.push(doc.history); |
| 5257 |
} |
| 5258 |
makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change)); |
| 5259 |
}); |
| 5260 |
} |
| 5261 |
|
| 5262 |
// Revert a change stored in a document's history. |
| 5263 |
function makeChangeFromHistory(doc, type, allowSelectionOnly) { |
| 5264 |
var suppress = doc.cm && doc.cm.state.suppressEdits; |
| 5265 |
if (suppress && !allowSelectionOnly) { return } |
| 5266 |
|
| 5267 |
var hist = doc.history, event, selAfter = doc.sel; |
| 5268 |
var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done; |
| 5269 |
|
| 5270 |
// Verify that there is a useable event (so that ctrl-z won't |
| 5271 |
// needlessly clear selection events) |
| 5272 |
var i = 0; |
| 5273 |
for (; i < source.length; i++) { |
| 5274 |
event = source[i]; |
| 5275 |
if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges) |
| 5276 |
{ break } |
| 5277 |
} |
| 5278 |
if (i == source.length) { return } |
| 5279 |
hist.lastOrigin = hist.lastSelOrigin = null; |
| 5280 |
|
| 5281 |
for (;;) { |
| 5282 |
event = source.pop(); |
| 5283 |
if (event.ranges) { |
| 5284 |
pushSelectionToHistory(event, dest); |
| 5285 |
if (allowSelectionOnly && !event.equals(doc.sel)) { |
| 5286 |
setSelection(doc, event, {clearRedo: false}); |
| 5287 |
return |
| 5288 |
} |
| 5289 |
selAfter = event; |
| 5290 |
} else if (suppress) { |
| 5291 |
source.push(event); |
| 5292 |
return |
| 5293 |
} else { break } |
| 5294 |
} |
| 5295 |
|
| 5296 |
// Build up a reverse change object to add to the opposite history |
| 5297 |
// stack (redo when undoing, and vice versa). |
| 5298 |
var antiChanges = []; |
| 5299 |
pushSelectionToHistory(selAfter, dest); |
| 5300 |
dest.push({changes: antiChanges, generation: hist.generation}); |
| 5301 |
hist.generation = event.generation || ++hist.maxGeneration; |
| 5302 |
|
| 5303 |
var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange"); |
| 5304 |
|
| 5305 |
var loop = function ( i ) { |
| 5306 |
var change = event.changes[i]; |
| 5307 |
change.origin = type; |
| 5308 |
if (filter && !filterChange(doc, change, false)) { |
| 5309 |
source.length = 0; |
| 5310 |
return {} |
| 5311 |
} |
| 5312 |
|
| 5313 |
antiChanges.push(historyChangeFromChange(doc, change)); |
| 5314 |
|
| 5315 |
var after = i ? computeSelAfterChange(doc, change) : lst(source); |
| 5316 |
makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change)); |
| 5317 |
if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); } |
| 5318 |
var rebased = []; |
| 5319 |
|
| 5320 |
// Propagate to the linked documents |
| 5321 |
linkedDocs(doc, function (doc, sharedHist) { |
| 5322 |
if (!sharedHist && indexOf(rebased, doc.history) == -1) { |
| 5323 |
rebaseHist(doc.history, change); |
| 5324 |
rebased.push(doc.history); |
| 5325 |
} |
| 5326 |
makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change)); |
| 5327 |
}); |
| 5328 |
}; |
| 5329 |
|
| 5330 |
for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) { |
| 5331 |
var returned = loop( i$1 ); |
| 5332 |
|
| 5333 |
if ( returned ) return returned.v; |
| 5334 |
} |
| 5335 |
} |
| 5336 |
|
| 5337 |
// Sub-views need their line numbers shifted when text is added |
| 5338 |
// above or below them in the parent document. |
| 5339 |
function shiftDoc(doc, distance) { |
| 5340 |
if (distance == 0) { return } |
| 5341 |
doc.first += distance; |
| 5342 |
doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range( |
| 5343 |
Pos(range.anchor.line + distance, range.anchor.ch), |
| 5344 |
Pos(range.head.line + distance, range.head.ch) |
| 5345 |
); }), doc.sel.primIndex); |
| 5346 |
if (doc.cm) { |
| 5347 |
regChange(doc.cm, doc.first, doc.first - distance, distance); |
| 5348 |
for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++) |
| 5349 |
{ regLineChange(doc.cm, l, "gutter"); } |
| 5350 |
} |
| 5351 |
} |
| 5352 |
|
| 5353 |
// More lower-level change function, handling only a single document |
| 5354 |
// (not linked ones). |
| 5355 |
function makeChangeSingleDoc(doc, change, selAfter, spans) { |
| 5356 |
if (doc.cm && !doc.cm.curOp) |
| 5357 |
{ return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) } |
| 5358 |
|
| 5359 |
if (change.to.line < doc.first) { |
| 5360 |
shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line)); |
| 5361 |
return |
| 5362 |
} |
| 5363 |
if (change.from.line > doc.lastLine()) { return } |
| 5364 |
|
| 5365 |
// Clip the change to the size of this doc |
| 5366 |
if (change.from.line < doc.first) { |
| 5367 |
var shift = change.text.length - 1 - (doc.first - change.from.line); |
| 5368 |
shiftDoc(doc, shift); |
| 5369 |
change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch), |
| 5370 |
text: [lst(change.text)], origin: change.origin}; |
| 5371 |
} |
| 5372 |
var last = doc.lastLine(); |
| 5373 |
if (change.to.line > last) { |
| 5374 |
change = {from: change.from, to: Pos(last, getLine(doc, last).text.length), |
| 5375 |
text: [change.text[0]], origin: change.origin}; |
| 5376 |
} |
| 5377 |
|
| 5378 |
change.removed = getBetween(doc, change.from, change.to); |
| 5379 |
|
| 5380 |
if (!selAfter) { selAfter = computeSelAfterChange(doc, change); } |
| 5381 |
if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); } |
| 5382 |
else { updateDoc(doc, change, spans); } |
| 5383 |
setSelectionNoUndo(doc, selAfter, sel_dontScroll); |
| 5384 |
} |
| 5385 |
|
| 5386 |
// Handle the interaction of a change to a document with the editor |
| 5387 |
// that this document is part of. |
| 5388 |
function makeChangeSingleDocInEditor(cm, change, spans) { |
| 5389 |
var doc = cm.doc, display = cm.display, from = change.from, to = change.to; |
| 5390 |
|
| 5391 |
var recomputeMaxLength = false, checkWidthStart = from.line; |
| 5392 |
if (!cm.options.lineWrapping) { |
| 5393 |
checkWidthStart = lineNo(visualLine(getLine(doc, from.line))); |
| 5394 |
doc.iter(checkWidthStart, to.line + 1, function (line) { |
| 5395 |
if (line == display.maxLine) { |
| 5396 |
recomputeMaxLength = true; |
| 5397 |
return true |
| 5398 |
} |
| 5399 |
}); |
| 5400 |
} |
| 5401 |
|
| 5402 |
if (doc.sel.contains(change.from, change.to) > -1) |
| 5403 |
{ signalCursorActivity(cm); } |
| 5404 |
|
| 5405 |
updateDoc(doc, change, spans, estimateHeight(cm)); |
| 5406 |
|
| 5407 |
if (!cm.options.lineWrapping) { |
| 5408 |
doc.iter(checkWidthStart, from.line + change.text.length, function (line) { |
| 5409 |
var len = lineLength(line); |
| 5410 |
if (len > display.maxLineLength) { |
| 5411 |
display.maxLine = line; |
| 5412 |
display.maxLineLength = len; |
| 5413 |
display.maxLineChanged = true; |
| 5414 |
recomputeMaxLength = false; |
| 5415 |
} |
| 5416 |
}); |
| 5417 |
if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; } |
| 5418 |
} |
| 5419 |
|
| 5420 |
retreatFrontier(doc, from.line); |
| 5421 |
startWorker(cm, 400); |
| 5422 |
|
| 5423 |
var lendiff = change.text.length - (to.line - from.line) - 1; |
| 5424 |
// Remember that these lines changed, for updating the display |
| 5425 |
if (change.full) |
| 5426 |
{ regChange(cm); } |
| 5427 |
else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change)) |
| 5428 |
{ regLineChange(cm, from.line, "text"); } |
| 5429 |
else |
| 5430 |
{ regChange(cm, from.line, to.line + 1, lendiff); } |
| 5431 |
|
| 5432 |
var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change"); |
| 5433 |
if (changeHandler || changesHandler) { |
| 5434 |
var obj = { |
| 5435 |
from: from, to: to, |
| 5436 |
text: change.text, |
| 5437 |
removed: change.removed, |
| 5438 |
origin: change.origin |
| 5439 |
}; |
| 5440 |
if (changeHandler) { signalLater(cm, "change", cm, obj); } |
| 5441 |
if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); } |
| 5442 |
} |
| 5443 |
cm.display.selForContextMenu = null; |
| 5444 |
} |
| 5445 |
|
| 5446 |
function replaceRange(doc, code, from, to, origin) { |
| 5447 |
var assign; |
| 5448 |
|
| 5449 |
if (!to) { to = from; } |
| 5450 |
if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); } |
| 5451 |
if (typeof code == "string") { code = doc.splitLines(code); } |
| 5452 |
makeChange(doc, {from: from, to: to, text: code, origin: origin}); |
| 5453 |
} |
| 5454 |
|
| 5455 |
// Rebasing/resetting history to deal with externally-sourced changes |
| 5456 |
|
| 5457 |
function rebaseHistSelSingle(pos, from, to, diff) { |
| 5458 |
if (to < pos.line) { |
| 5459 |
pos.line += diff; |
| 5460 |
} else if (from < pos.line) { |
| 5461 |
pos.line = from; |
| 5462 |
pos.ch = 0; |
| 5463 |
} |
| 5464 |
} |
| 5465 |
|
| 5466 |
// Tries to rebase an array of history events given a change in the |
| 5467 |
// document. If the change touches the same lines as the event, the |
| 5468 |
// event, and everything 'behind' it, is discarded. If the change is |
| 5469 |
// before the event, the event's positions are updated. Uses a |
| 5470 |
// copy-on-write scheme for the positions, to avoid having to |
| 5471 |
// reallocate them all on every rebase, but also avoid problems with |
| 5472 |
// shared position objects being unsafely updated. |
| 5473 |
function rebaseHistArray(array, from, to, diff) { |
| 5474 |
for (var i = 0; i < array.length; ++i) { |
| 5475 |
var sub = array[i], ok = true; |
| 5476 |
if (sub.ranges) { |
| 5477 |
if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; } |
| 5478 |
for (var j = 0; j < sub.ranges.length; j++) { |
| 5479 |
rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff); |
| 5480 |
rebaseHistSelSingle(sub.ranges[j].head, from, to, diff); |
| 5481 |
} |
| 5482 |
continue |
| 5483 |
} |
| 5484 |
for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) { |
| 5485 |
var cur = sub.changes[j$1]; |
| 5486 |
if (to < cur.from.line) { |
| 5487 |
cur.from = Pos(cur.from.line + diff, cur.from.ch); |
| 5488 |
cur.to = Pos(cur.to.line + diff, cur.to.ch); |
| 5489 |
} else if (from <= cur.to.line) { |
| 5490 |
ok = false; |
| 5491 |
break |
| 5492 |
} |
| 5493 |
} |
| 5494 |
if (!ok) { |
| 5495 |
array.splice(0, i + 1); |
| 5496 |
i = 0; |
| 5497 |
} |
| 5498 |
} |
| 5499 |
} |
| 5500 |
|
| 5501 |
function rebaseHist(hist, change) { |
| 5502 |
var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1; |
| 5503 |
rebaseHistArray(hist.done, from, to, diff); |
| 5504 |
rebaseHistArray(hist.undone, from, to, diff); |
| 5505 |
} |
| 5506 |
|
| 5507 |
// Utility for applying a change to a line by handle or number, |
| 5508 |
// returning the number and optionally registering the line as |
| 5509 |
// changed. |
| 5510 |
function changeLine(doc, handle, changeType, op) { |
| 5511 |
var no = handle, line = handle; |
| 5512 |
if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)); } |
| 5513 |
else { no = lineNo(handle); } |
| 5514 |
if (no == null) { return null } |
| 5515 |
if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); } |
| 5516 |
return line |
| 5517 |
} |
| 5518 |
|
| 5519 |
// The document is represented as a BTree consisting of leaves, with |
| 5520 |
// chunk of lines in them, and branches, with up to ten leaves or |
| 5521 |
// other branch nodes below them. The top node is always a branch |
| 5522 |
// node, and is the document object itself (meaning it has |
| 5523 |
// additional methods and properties). |
| 5524 |
// |
| 5525 |
// All nodes have parent links. The tree is used both to go from |
| 5526 |
// line numbers to line objects, and to go from objects to numbers. |
| 5527 |
// It also indexes by height, and is used to convert between height |
| 5528 |
// and line object, and to find the total height of the document. |
| 5529 |
// |
| 5530 |
// See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html |
| 5531 |
|
| 5532 |
function LeafChunk(lines) { |
| 5533 |
var this$1 = this; |
| 5534 |
|
| 5535 |
this.lines = lines; |
| 5536 |
this.parent = null; |
| 5537 |
var height = 0; |
| 5538 |
for (var i = 0; i < lines.length; ++i) { |
| 5539 |
lines[i].parent = this$1; |
| 5540 |
height += lines[i].height; |
| 5541 |
} |
| 5542 |
this.height = height; |
| 5543 |
} |
| 5544 |
|
| 5545 |
LeafChunk.prototype = { |
| 5546 |
chunkSize: function() { return this.lines.length }, |
| 5547 |
|
| 5548 |
// Remove the n lines at offset 'at'. |
| 5549 |
removeInner: function(at, n) { |
| 5550 |
var this$1 = this; |
| 5551 |
|
| 5552 |
for (var i = at, e = at + n; i < e; ++i) { |
| 5553 |
var line = this$1.lines[i]; |
| 5554 |
this$1.height -= line.height; |
| 5555 |
cleanUpLine(line); |
| 5556 |
signalLater(line, "delete"); |
| 5557 |
} |
| 5558 |
this.lines.splice(at, n); |
| 5559 |
}, |
| 5560 |
|
| 5561 |
// Helper used to collapse a small branch into a single leaf. |
| 5562 |
collapse: function(lines) { |
| 5563 |
lines.push.apply(lines, this.lines); |
| 5564 |
}, |
| 5565 |
|
| 5566 |
// Insert the given array of lines at offset 'at', count them as |
| 5567 |
// having the given height. |
| 5568 |
insertInner: function(at, lines, height) { |
| 5569 |
var this$1 = this; |
| 5570 |
|
| 5571 |
this.height += height; |
| 5572 |
this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at)); |
| 5573 |
for (var i = 0; i < lines.length; ++i) { lines[i].parent = this$1; } |
| 5574 |
}, |
| 5575 |
|
| 5576 |
// Used to iterate over a part of the tree. |
| 5577 |
iterN: function(at, n, op) { |
| 5578 |
var this$1 = this; |
| 5579 |
|
| 5580 |
for (var e = at + n; at < e; ++at) |
| 5581 |
{ if (op(this$1.lines[at])) { return true } } |
| 5582 |
} |
| 5583 |
}; |
| 5584 |
|
| 5585 |
function BranchChunk(children) { |
| 5586 |
var this$1 = this; |
| 5587 |
|
| 5588 |
this.children = children; |
| 5589 |
var size = 0, height = 0; |
| 5590 |
for (var i = 0; i < children.length; ++i) { |
| 5591 |
var ch = children[i]; |
| 5592 |
size += ch.chunkSize(); height += ch.height; |
| 5593 |
ch.parent = this$1; |
| 5594 |
} |
| 5595 |
this.size = size; |
| 5596 |
this.height = height; |
| 5597 |
this.parent = null; |
| 5598 |
} |
| 5599 |
|
| 5600 |
BranchChunk.prototype = { |
| 5601 |
chunkSize: function() { return this.size }, |
| 5602 |
|
| 5603 |
removeInner: function(at, n) { |
| 5604 |
var this$1 = this; |
| 5605 |
|
| 5606 |
this.size -= n; |
| 5607 |
for (var i = 0; i < this.children.length; ++i) { |
| 5608 |
var child = this$1.children[i], sz = child.chunkSize(); |
| 5609 |
if (at < sz) { |
| 5610 |
var rm = Math.min(n, sz - at), oldHeight = child.height; |
| 5611 |
child.removeInner(at, rm); |
| 5612 |
this$1.height -= oldHeight - child.height; |
| 5613 |
if (sz == rm) { this$1.children.splice(i--, 1); child.parent = null; } |
| 5614 |
if ((n -= rm) == 0) { break } |
| 5615 |
at = 0; |
| 5616 |
} else { at -= sz; } |
| 5617 |
} |
| 5618 |
// If the result is smaller than 25 lines, ensure that it is a |
| 5619 |
// single leaf node. |
| 5620 |
if (this.size - n < 25 && |
| 5621 |
(this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) { |
| 5622 |
var lines = []; |
| 5623 |
this.collapse(lines); |
| 5624 |
this.children = [new LeafChunk(lines)]; |
| 5625 |
this.children[0].parent = this; |
| 5626 |
} |
| 5627 |
}, |
| 5628 |
|
| 5629 |
collapse: function(lines) { |
| 5630 |
var this$1 = this; |
| 5631 |
|
| 5632 |
for (var i = 0; i < this.children.length; ++i) { this$1.children[i].collapse(lines); } |
| 5633 |
}, |
| 5634 |
|
| 5635 |
insertInner: function(at, lines, height) { |
| 5636 |
var this$1 = this; |
| 5637 |
|
| 5638 |
this.size += lines.length; |
| 5639 |
this.height += height; |
| 5640 |
for (var i = 0; i < this.children.length; ++i) { |
| 5641 |
var child = this$1.children[i], sz = child.chunkSize(); |
| 5642 |
if (at <= sz) { |
| 5643 |
child.insertInner(at, lines, height); |
| 5644 |
if (child.lines && child.lines.length > 50) { |
| 5645 |
// To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced. |
| 5646 |
// Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest. |
| 5647 |
var remaining = child.lines.length % 25 + 25; |
| 5648 |
for (var pos = remaining; pos < child.lines.length;) { |
| 5649 |
var leaf = new LeafChunk(child.lines.slice(pos, pos += 25)); |
| 5650 |
child.height -= leaf.height; |
| 5651 |
this$1.children.splice(++i, 0, leaf); |
| 5652 |
leaf.parent = this$1; |
| 5653 |
} |
| 5654 |
child.lines = child.lines.slice(0, remaining); |
| 5655 |
this$1.maybeSpill(); |
| 5656 |
} |
| 5657 |
break |
| 5658 |
} |
| 5659 |
at -= sz; |
| 5660 |
} |
| 5661 |
}, |
| 5662 |
|
| 5663 |
// When a node has grown, check whether it should be split. |
| 5664 |
maybeSpill: function() { |
| 5665 |
if (this.children.length <= 10) { return } |
| 5666 |
var me = this; |
| 5667 |
do { |
| 5668 |
var spilled = me.children.splice(me.children.length - 5, 5); |
| 5669 |
var sibling = new BranchChunk(spilled); |
| 5670 |
if (!me.parent) { // Become the parent node |
| 5671 |
var copy = new BranchChunk(me.children); |
| 5672 |
copy.parent = me; |
| 5673 |
me.children = [copy, sibling]; |
| 5674 |
me = copy; |
| 5675 |
} else { |
| 5676 |
me.size -= sibling.size; |
| 5677 |
me.height -= sibling.height; |
| 5678 |
var myIndex = indexOf(me.parent.children, me); |
| 5679 |
me.parent.children.splice(myIndex + 1, 0, sibling); |
| 5680 |
} |
| 5681 |
sibling.parent = me.parent; |
| 5682 |
} while (me.children.length > 10) |
| 5683 |
me.parent.maybeSpill(); |
| 5684 |
}, |
| 5685 |
|
| 5686 |
iterN: function(at, n, op) { |
| 5687 |
var this$1 = this; |
| 5688 |
|
| 5689 |
for (var i = 0; i < this.children.length; ++i) { |
| 5690 |
var child = this$1.children[i], sz = child.chunkSize(); |
| 5691 |
if (at < sz) { |
| 5692 |
var used = Math.min(n, sz - at); |
| 5693 |
if (child.iterN(at, used, op)) { return true } |
| 5694 |
if ((n -= used) == 0) { break } |
| 5695 |
at = 0; |
| 5696 |
} else { at -= sz; } |
| 5697 |
} |
| 5698 |
} |
| 5699 |
}; |
| 5700 |
|
| 5701 |
// Line widgets are block elements displayed above or below a line. |
| 5702 |
|
| 5703 |
var LineWidget = function(doc, node, options) { |
| 5704 |
var this$1 = this; |
| 5705 |
|
| 5706 |
if (options) { for (var opt in options) { if (options.hasOwnProperty(opt)) |
| 5707 |
{ this$1[opt] = options[opt]; } } } |
| 5708 |
this.doc = doc; |
| 5709 |
this.node = node; |
| 5710 |
}; |
| 5711 |
|
| 5712 |
LineWidget.prototype.clear = function () { |
| 5713 |
var this$1 = this; |
| 5714 |
|
| 5715 |
var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line); |
| 5716 |
if (no == null || !ws) { return } |
| 5717 |
for (var i = 0; i < ws.length; ++i) { if (ws[i] == this$1) { ws.splice(i--, 1); } } |
| 5718 |
if (!ws.length) { line.widgets = null; } |
| 5719 |
var height = widgetHeight(this); |
| 5720 |
updateLineHeight(line, Math.max(0, line.height - height)); |
| 5721 |
if (cm) { |
| 5722 |
runInOp(cm, function () { |
| 5723 |
adjustScrollWhenAboveVisible(cm, line, -height); |
| 5724 |
regLineChange(cm, no, "widget"); |
| 5725 |
}); |
| 5726 |
signalLater(cm, "lineWidgetCleared", cm, this, no); |
| 5727 |
} |
| 5728 |
}; |
| 5729 |
|
| 5730 |
LineWidget.prototype.changed = function () { |
| 5731 |
var this$1 = this; |
| 5732 |
|
| 5733 |
var oldH = this.height, cm = this.doc.cm, line = this.line; |
| 5734 |
this.height = null; |
| 5735 |
var diff = widgetHeight(this) - oldH; |
| 5736 |
if (!diff) { return } |
| 5737 |
if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); } |
| 5738 |
if (cm) { |
| 5739 |
runInOp(cm, function () { |
| 5740 |
cm.curOp.forceUpdate = true; |
| 5741 |
adjustScrollWhenAboveVisible(cm, line, diff); |
| 5742 |
signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line)); |
| 5743 |
}); |
| 5744 |
} |
| 5745 |
}; |
| 5746 |
eventMixin(LineWidget); |
| 5747 |
|
| 5748 |
function adjustScrollWhenAboveVisible(cm, line, diff) { |
| 5749 |
if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop)) |
| 5750 |
{ addToScrollTop(cm, diff); } |
| 5751 |
} |
| 5752 |
|
| 5753 |
function addLineWidget(doc, handle, node, options) { |
| 5754 |
var widget = new LineWidget(doc, node, options); |
| 5755 |
var cm = doc.cm; |
| 5756 |
if (cm && widget.noHScroll) { cm.display.alignWidgets = true; } |
| 5757 |
changeLine(doc, handle, "widget", function (line) { |
| 5758 |
var widgets = line.widgets || (line.widgets = []); |
| 5759 |
if (widget.insertAt == null) { widgets.push(widget); } |
| 5760 |
else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); } |
| 5761 |
widget.line = line; |
| 5762 |
if (cm && !lineIsHidden(doc, line)) { |
| 5763 |
var aboveVisible = heightAtLine(line) < doc.scrollTop; |
| 5764 |
updateLineHeight(line, line.height + widgetHeight(widget)); |
| 5765 |
if (aboveVisible) { addToScrollTop(cm, widget.height); } |
| 5766 |
cm.curOp.forceUpdate = true; |
| 5767 |
} |
| 5768 |
return true |
| 5769 |
}); |
| 5770 |
if (cm) { signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle)); } |
| 5771 |
return widget |
| 5772 |
} |
| 5773 |
|
| 5774 |
// TEXTMARKERS |
| 5775 |
|
| 5776 |
// Created with markText and setBookmark methods. A TextMarker is a |
| 5777 |
// handle that can be used to clear or find a marked position in the |
| 5778 |
// document. Line objects hold arrays (markedSpans) containing |
| 5779 |
// {from, to, marker} object pointing to such marker objects, and |
| 5780 |
// indicating that such a marker is present on that line. Multiple |
| 5781 |
// lines may point to the same marker when it spans across lines. |
| 5782 |
// The spans will have null for their from/to properties when the |
| 5783 |
// marker continues beyond the start/end of the line. Markers have |
| 5784 |
// links back to the lines they currently touch. |
| 5785 |
|
| 5786 |
// Collapsed markers have unique ids, in order to be able to order |
| 5787 |
// them, which is needed for uniquely determining an outer marker |
| 5788 |
// when they overlap (they may nest, but not partially overlap). |
| 5789 |
var nextMarkerId = 0; |
| 5790 |
|
| 5791 |
var TextMarker = function(doc, type) { |
| 5792 |
this.lines = []; |
| 5793 |
this.type = type; |
| 5794 |
this.doc = doc; |
| 5795 |
this.id = ++nextMarkerId; |
| 5796 |
}; |
| 5797 |
|
| 5798 |
// Clear the marker. |
| 5799 |
TextMarker.prototype.clear = function () { |
| 5800 |
var this$1 = this; |
| 5801 |
|
| 5802 |
if (this.explicitlyCleared) { return } |
| 5803 |
var cm = this.doc.cm, withOp = cm && !cm.curOp; |
| 5804 |
if (withOp) { startOperation(cm); } |
| 5805 |
if (hasHandler(this, "clear")) { |
| 5806 |
var found = this.find(); |
| 5807 |
if (found) { signalLater(this, "clear", found.from, found.to); } |
| 5808 |
} |
| 5809 |
var min = null, max = null; |
| 5810 |
for (var i = 0; i < this.lines.length; ++i) { |
| 5811 |
var line = this$1.lines[i]; |
| 5812 |
var span = getMarkedSpanFor(line.markedSpans, this$1); |
| 5813 |
if (cm && !this$1.collapsed) { regLineChange(cm, lineNo(line), "text"); } |
| 5814 |
else if (cm) { |
| 5815 |
if (span.to != null) { max = lineNo(line); } |
| 5816 |
if (span.from != null) { min = lineNo(line); } |
| 5817 |
} |
| 5818 |
line.markedSpans = removeMarkedSpan(line.markedSpans, span); |
| 5819 |
if (span.from == null && this$1.collapsed && !lineIsHidden(this$1.doc, line) && cm) |
| 5820 |
{ updateLineHeight(line, textHeight(cm.display)); } |
| 5821 |
} |
| 5822 |
if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) { |
| 5823 |
var visual = visualLine(this$1.lines[i$1]), len = lineLength(visual); |
| 5824 |
if (len > cm.display.maxLineLength) { |
| 5825 |
cm.display.maxLine = visual; |
| 5826 |
cm.display.maxLineLength = len; |
| 5827 |
cm.display.maxLineChanged = true; |
| 5828 |
} |
| 5829 |
} } |
| 5830 |
|
| 5831 |
if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); } |
| 5832 |
this.lines.length = 0; |
| 5833 |
this.explicitlyCleared = true; |
| 5834 |
if (this.atomic && this.doc.cantEdit) { |
| 5835 |
this.doc.cantEdit = false; |
| 5836 |
if (cm) { reCheckSelection(cm.doc); } |
| 5837 |
} |
| 5838 |
if (cm) { signalLater(cm, "markerCleared", cm, this, min, max); } |
| 5839 |
if (withOp) { endOperation(cm); } |
| 5840 |
if (this.parent) { this.parent.clear(); } |
| 5841 |
}; |
| 5842 |
|
| 5843 |
// Find the position of the marker in the document. Returns a {from, |
| 5844 |
// to} object by default. Side can be passed to get a specific side |
| 5845 |
// -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the |
| 5846 |
// Pos objects returned contain a line object, rather than a line |
| 5847 |
// number (used to prevent looking up the same line twice). |
| 5848 |
TextMarker.prototype.find = function (side, lineObj) { |
| 5849 |
var this$1 = this; |
| 5850 |
|
| 5851 |
if (side == null && this.type == "bookmark") { side = 1; } |
| 5852 |
var from, to; |
| 5853 |
for (var i = 0; i < this.lines.length; ++i) { |
| 5854 |
var line = this$1.lines[i]; |
| 5855 |
var span = getMarkedSpanFor(line.markedSpans, this$1); |
| 5856 |
if (span.from != null) { |
| 5857 |
from = Pos(lineObj ? line : lineNo(line), span.from); |
| 5858 |
if (side == -1) { return from } |
| 5859 |
} |
| 5860 |
if (span.to != null) { |
| 5861 |
to = Pos(lineObj ? line : lineNo(line), span.to); |
| 5862 |
if (side == 1) { return to } |
| 5863 |
} |
| 5864 |
} |
| 5865 |
return from && {from: from, to: to} |
| 5866 |
}; |
| 5867 |
|
| 5868 |
// Signals that the marker's widget changed, and surrounding layout |
| 5869 |
// should be recomputed. |
| 5870 |
TextMarker.prototype.changed = function () { |
| 5871 |
var this$1 = this; |
| 5872 |
|
| 5873 |
var pos = this.find(-1, true), widget = this, cm = this.doc.cm; |
| 5874 |
if (!pos || !cm) { return } |
| 5875 |
runInOp(cm, function () { |
| 5876 |
var line = pos.line, lineN = lineNo(pos.line); |
| 5877 |
var view = findViewForLine(cm, lineN); |
| 5878 |
if (view) { |
| 5879 |
clearLineMeasurementCacheFor(view); |
| 5880 |
cm.curOp.selectionChanged = cm.curOp.forceUpdate = true; |
| 5881 |
} |
| 5882 |
cm.curOp.updateMaxLine = true; |
| 5883 |
if (!lineIsHidden(widget.doc, line) && widget.height != null) { |
| 5884 |
var oldHeight = widget.height; |
| 5885 |
widget.height = null; |
| 5886 |
var dHeight = widgetHeight(widget) - oldHeight; |
| 5887 |
if (dHeight) |
| 5888 |
{ updateLineHeight(line, line.height + dHeight); } |
| 5889 |
} |
| 5890 |
signalLater(cm, "markerChanged", cm, this$1); |
| 5891 |
}); |
| 5892 |
}; |
| 5893 |
|
| 5894 |
TextMarker.prototype.attachLine = function (line) { |
| 5895 |
if (!this.lines.length && this.doc.cm) { |
| 5896 |
var op = this.doc.cm.curOp; |
| 5897 |
if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1) |
| 5898 |
{ (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); } |
| 5899 |
} |
| 5900 |
this.lines.push(line); |
| 5901 |
}; |
| 5902 |
|
| 5903 |
TextMarker.prototype.detachLine = function (line) { |
| 5904 |
this.lines.splice(indexOf(this.lines, line), 1); |
| 5905 |
if (!this.lines.length && this.doc.cm) { |
| 5906 |
var op = this.doc.cm.curOp |
| 5907 |
;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this); |
| 5908 |
} |
| 5909 |
}; |
| 5910 |
eventMixin(TextMarker); |
| 5911 |
|
| 5912 |
// Create a marker, wire it up to the right lines, and |
| 5913 |
function markText(doc, from, to, options, type) { |
| 5914 |
// Shared markers (across linked documents) are handled separately |
| 5915 |
// (markTextShared will call out to this again, once per |
| 5916 |
// document). |
| 5917 |
if (options && options.shared) { return markTextShared(doc, from, to, options, type) } |
| 5918 |
// Ensure we are in an operation. |
| 5919 |
if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) } |
| 5920 |
|
| 5921 |
var marker = new TextMarker(doc, type), diff = cmp(from, to); |
| 5922 |
if (options) { copyObj(options, marker, false); } |
| 5923 |
// Don't connect empty markers unless clearWhenEmpty is false |
| 5924 |
if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false) |
| 5925 |
{ return marker } |
| 5926 |
if (marker.replacedWith) { |
| 5927 |
// Showing up as a widget implies collapsed (widget replaces text) |
| 5928 |
marker.collapsed = true; |
| 5929 |
marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget"); |
| 5930 |
if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true"); } |
| 5931 |
if (options.insertLeft) { marker.widgetNode.insertLeft = true; } |
| 5932 |
} |
| 5933 |
if (marker.collapsed) { |
| 5934 |
if (conflictingCollapsedRange(doc, from.line, from, to, marker) || |
| 5935 |
from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker)) |
| 5936 |
{ throw new Error("Inserting collapsed marker partially overlapping an existing one") } |
| 5937 |
seeCollapsedSpans(); |
| 5938 |
} |
| 5939 |
|
| 5940 |
if (marker.addToHistory) |
| 5941 |
{ addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); } |
| 5942 |
|
| 5943 |
var curLine = from.line, cm = doc.cm, updateMaxLine; |
| 5944 |
doc.iter(curLine, to.line + 1, function (line) { |
| 5945 |
if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine) |
| 5946 |
{ updateMaxLine = true; } |
| 5947 |
if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); } |
| 5948 |
addMarkedSpan(line, new MarkedSpan(marker, |
| 5949 |
curLine == from.line ? from.ch : null, |
| 5950 |
curLine == to.line ? to.ch : null)); |
| 5951 |
++curLine; |
| 5952 |
}); |
| 5953 |
// lineIsHidden depends on the presence of the spans, so needs a second pass |
| 5954 |
if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) { |
| 5955 |
if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); } |
| 5956 |
}); } |
| 5957 |
|
| 5958 |
if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }); } |
| 5959 |
|
| 5960 |
if (marker.readOnly) { |
| 5961 |
seeReadOnlySpans(); |
| 5962 |
if (doc.history.done.length || doc.history.undone.length) |
| 5963 |
{ doc.clearHistory(); } |
| 5964 |
} |
| 5965 |
if (marker.collapsed) { |
| 5966 |
marker.id = ++nextMarkerId; |
| 5967 |
marker.atomic = true; |
| 5968 |
} |
| 5969 |
if (cm) { |
| 5970 |
// Sync editor state |
| 5971 |
if (updateMaxLine) { cm.curOp.updateMaxLine = true; } |
| 5972 |
if (marker.collapsed) |
| 5973 |
{ regChange(cm, from.line, to.line + 1); } |
| 5974 |
else if (marker.className || marker.startStyle || marker.endStyle || marker.css || |
| 5975 |
marker.attributes || marker.title) |
| 5976 |
{ for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text"); } } |
| 5977 |
if (marker.atomic) { reCheckSelection(cm.doc); } |
| 5978 |
signalLater(cm, "markerAdded", cm, marker); |
| 5979 |
} |
| 5980 |
return marker |
| 5981 |
} |
| 5982 |
|
| 5983 |
// SHARED TEXTMARKERS |
| 5984 |
|
| 5985 |
// A shared marker spans multiple linked documents. It is |
| 5986 |
// implemented as a meta-marker-object controlling multiple normal |
| 5987 |
// markers. |
| 5988 |
var SharedTextMarker = function(markers, primary) { |
| 5989 |
var this$1 = this; |
| 5990 |
|
| 5991 |
this.markers = markers; |
| 5992 |
this.primary = primary; |
| 5993 |
for (var i = 0; i < markers.length; ++i) |
| 5994 |
{ markers[i].parent = this$1; } |
| 5995 |
}; |
| 5996 |
|
| 5997 |
SharedTextMarker.prototype.clear = function () { |
| 5998 |
var this$1 = this; |
| 5999 |
|
| 6000 |
if (this.explicitlyCleared) { return } |
| 6001 |
this.explicitlyCleared = true; |
| 6002 |
for (var i = 0; i < this.markers.length; ++i) |
| 6003 |
{ this$1.markers[i].clear(); } |
| 6004 |
signalLater(this, "clear"); |
| 6005 |
}; |
| 6006 |
|
| 6007 |
SharedTextMarker.prototype.find = function (side, lineObj) { |
| 6008 |
return this.primary.find(side, lineObj) |
| 6009 |
}; |
| 6010 |
eventMixin(SharedTextMarker); |
| 6011 |
|
| 6012 |
function markTextShared(doc, from, to, options, type) { |
| 6013 |
options = copyObj(options); |
| 6014 |
options.shared = false; |
| 6015 |
var markers = [markText(doc, from, to, options, type)], primary = markers[0]; |
| 6016 |
var widget = options.widgetNode; |
| 6017 |
linkedDocs(doc, function (doc) { |
| 6018 |
if (widget) { options.widgetNode = widget.cloneNode(true); } |
| 6019 |
markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type)); |
| 6020 |
for (var i = 0; i < doc.linked.length; ++i) |
| 6021 |
{ if (doc.linked[i].isParent) { return } } |
| 6022 |
primary = lst(markers); |
| 6023 |
}); |
| 6024 |
return new SharedTextMarker(markers, primary) |
| 6025 |
} |
| 6026 |
|
| 6027 |
function findSharedMarkers(doc) { |
| 6028 |
return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; }) |
| 6029 |
} |
| 6030 |
|
| 6031 |
function copySharedMarkers(doc, markers) { |
| 6032 |
for (var i = 0; i < markers.length; i++) { |
| 6033 |
var marker = markers[i], pos = marker.find(); |
| 6034 |
var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to); |
| 6035 |
if (cmp(mFrom, mTo)) { |
| 6036 |
var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type); |
| 6037 |
marker.markers.push(subMark); |
| 6038 |
subMark.parent = marker; |
| 6039 |
} |
| 6040 |
} |
| 6041 |
} |
| 6042 |
|
| 6043 |
function detachSharedMarkers(markers) { |
| 6044 |
var loop = function ( i ) { |
| 6045 |
var marker = markers[i], linked = [marker.primary.doc]; |
| 6046 |
linkedDocs(marker.primary.doc, function (d) { return linked.push(d); }); |
| 6047 |
for (var j = 0; j < marker.markers.length; j++) { |
| 6048 |
var subMarker = marker.markers[j]; |
| 6049 |
if (indexOf(linked, subMarker.doc) == -1) { |
| 6050 |
subMarker.parent = null; |
| 6051 |
marker.markers.splice(j--, 1); |
| 6052 |
} |
| 6053 |
} |
| 6054 |
}; |
| 6055 |
|
| 6056 |
for (var i = 0; i < markers.length; i++) loop( i ); |
| 6057 |
} |
| 6058 |
|
| 6059 |
var nextDocId = 0; |
| 6060 |
var Doc = function(text, mode, firstLine, lineSep, direction) { |
| 6061 |
if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) } |
| 6062 |
if (firstLine == null) { firstLine = 0; } |
| 6063 |
|
| 6064 |
BranchChunk.call(this, [new LeafChunk([new Line("", null)])]); |
| 6065 |
this.first = firstLine; |
| 6066 |
this.scrollTop = this.scrollLeft = 0; |
| 6067 |
this.cantEdit = false; |
| 6068 |
this.cleanGeneration = 1; |
| 6069 |
this.modeFrontier = this.highlightFrontier = firstLine; |
| 6070 |
var start = Pos(firstLine, 0); |
| 6071 |
this.sel = simpleSelection(start); |
| 6072 |
this.history = new History(null); |
| 6073 |
this.id = ++nextDocId; |
| 6074 |
this.modeOption = mode; |
| 6075 |
this.lineSep = lineSep; |
| 6076 |
this.direction = (direction == "rtl") ? "rtl" : "ltr"; |
| 6077 |
this.extend = false; |
| 6078 |
|
| 6079 |
if (typeof text == "string") { text = this.splitLines(text); } |
| 6080 |
updateDoc(this, {from: start, to: start, text: text}); |
| 6081 |
setSelection(this, simpleSelection(start), sel_dontScroll); |
| 6082 |
}; |
| 6083 |
|
| 6084 |
Doc.prototype = createObj(BranchChunk.prototype, { |
| 6085 |
constructor: Doc, |
| 6086 |
// Iterate over the document. Supports two forms -- with only one |
| 6087 |
// argument, it calls that for each line in the document. With |
| 6088 |
// three, it iterates over the range given by the first two (with |
| 6089 |
// the second being non-inclusive). |
| 6090 |
iter: function(from, to, op) { |
| 6091 |
if (op) { this.iterN(from - this.first, to - from, op); } |
| 6092 |
else { this.iterN(this.first, this.first + this.size, from); } |
| 6093 |
}, |
| 6094 |
|
| 6095 |
// Non-public interface for adding and removing lines. |
| 6096 |
insert: function(at, lines) { |
| 6097 |
var height = 0; |
| 6098 |
for (var i = 0; i < lines.length; ++i) { height += lines[i].height; } |
| 6099 |
this.insertInner(at - this.first, lines, height); |
| 6100 |
}, |
| 6101 |
remove: function(at, n) { this.removeInner(at - this.first, n); }, |
| 6102 |
|
| 6103 |
// From here, the methods are part of the public interface. Most |
| 6104 |
// are also available from CodeMirror (editor) instances. |
| 6105 |
|
| 6106 |
getValue: function(lineSep) { |
| 6107 |
var lines = getLines(this, this.first, this.first + this.size); |
| 6108 |
if (lineSep === false) { return lines } |
| 6109 |
return lines.join(lineSep || this.lineSeparator()) |
| 6110 |
}, |
| 6111 |
setValue: docMethodOp(function(code) { |
| 6112 |
var top = Pos(this.first, 0), last = this.first + this.size - 1; |
| 6113 |
makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length), |
| 6114 |
text: this.splitLines(code), origin: "setValue", full: true}, true); |
| 6115 |
if (this.cm) { scrollToCoords(this.cm, 0, 0); } |
| 6116 |
setSelection(this, simpleSelection(top), sel_dontScroll); |
| 6117 |
}), |
| 6118 |
replaceRange: function(code, from, to, origin) { |
| 6119 |
from = clipPos(this, from); |
| 6120 |
to = to ? clipPos(this, to) : from; |
| 6121 |
replaceRange(this, code, from, to, origin); |
| 6122 |
}, |
| 6123 |
getRange: function(from, to, lineSep) { |
| 6124 |
var lines = getBetween(this, clipPos(this, from), clipPos(this, to)); |
| 6125 |
if (lineSep === false) { return lines } |
| 6126 |
return lines.join(lineSep || this.lineSeparator()) |
| 6127 |
}, |
| 6128 |
|
| 6129 |
getLine: function(line) {var l = this.getLineHandle(line); return l && l.text}, |
| 6130 |
|
| 6131 |
getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }}, |
| 6132 |
getLineNumber: function(line) {return lineNo(line)}, |
| 6133 |
|
| 6134 |
getLineHandleVisualStart: function(line) { |
| 6135 |
if (typeof line == "number") { line = getLine(this, line); } |
| 6136 |
return visualLine(line) |
| 6137 |
}, |
| 6138 |
|
| 6139 |
lineCount: function() {return this.size}, |
| 6140 |
firstLine: function() {return this.first}, |
| 6141 |
lastLine: function() {return this.first + this.size - 1}, |
| 6142 |
|
| 6143 |
clipPos: function(pos) {return clipPos(this, pos)}, |
| 6144 |
|
| 6145 |
getCursor: function(start) { |
| 6146 |
var range$$1 = this.sel.primary(), pos; |
| 6147 |
if (start == null || start == "head") { pos = range$$1.head; } |
| 6148 |
else if (start == "anchor") { pos = range$$1.anchor; } |
| 6149 |
else if (start == "end" || start == "to" || start === false) { pos = range$$1.to(); } |
| 6150 |
else { pos = range$$1.from(); } |
| 6151 |
return pos |
| 6152 |
}, |
| 6153 |
listSelections: function() { return this.sel.ranges }, |
| 6154 |
somethingSelected: function() {return this.sel.somethingSelected()}, |
| 6155 |
|
| 6156 |
setCursor: docMethodOp(function(line, ch, options) { |
| 6157 |
setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options); |
| 6158 |
}), |
| 6159 |
setSelection: docMethodOp(function(anchor, head, options) { |
| 6160 |
setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options); |
| 6161 |
}), |
| 6162 |
extendSelection: docMethodOp(function(head, other, options) { |
| 6163 |
extendSelection(this, clipPos(this, head), other && clipPos(this, other), options); |
| 6164 |
}), |
| 6165 |
extendSelections: docMethodOp(function(heads, options) { |
| 6166 |
extendSelections(this, clipPosArray(this, heads), options); |
| 6167 |
}), |
| 6168 |
extendSelectionsBy: docMethodOp(function(f, options) { |
| 6169 |
var heads = map(this.sel.ranges, f); |
| 6170 |
extendSelections(this, clipPosArray(this, heads), options); |
| 6171 |
}), |
| 6172 |
setSelections: docMethodOp(function(ranges, primary, options) { |
| 6173 |
var this$1 = this; |
| 6174 |
|
| 6175 |
if (!ranges.length) { return } |
| 6176 |
var out = []; |
| 6177 |
for (var i = 0; i < ranges.length; i++) |
| 6178 |
{ out[i] = new Range(clipPos(this$1, ranges[i].anchor), |
| 6179 |
clipPos(this$1, ranges[i].head)); } |
| 6180 |
if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); } |
| 6181 |
setSelection(this, normalizeSelection(this.cm, out, primary), options); |
| 6182 |
}), |
| 6183 |
addSelection: docMethodOp(function(anchor, head, options) { |
| 6184 |
var ranges = this.sel.ranges.slice(0); |
| 6185 |
ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor))); |
| 6186 |
setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options); |
| 6187 |
}), |
| 6188 |
|
| 6189 |
getSelection: function(lineSep) { |
| 6190 |
var this$1 = this; |
| 6191 |
|
| 6192 |
var ranges = this.sel.ranges, lines; |
| 6193 |
for (var i = 0; i < ranges.length; i++) { |
| 6194 |
var sel = getBetween(this$1, ranges[i].from(), ranges[i].to()); |
| 6195 |
lines = lines ? lines.concat(sel) : sel; |
| 6196 |
} |
| 6197 |
if (lineSep === false) { return lines } |
| 6198 |
else { return lines.join(lineSep || this.lineSeparator()) } |
| 6199 |
}, |
| 6200 |
getSelections: function(lineSep) { |
| 6201 |
var this$1 = this; |
| 6202 |
|
| 6203 |
var parts = [], ranges = this.sel.ranges; |
| 6204 |
for (var i = 0; i < ranges.length; i++) { |
| 6205 |
var sel = getBetween(this$1, ranges[i].from(), ranges[i].to()); |
| 6206 |
if (lineSep !== false) { sel = sel.join(lineSep || this$1.lineSeparator()); } |
| 6207 |
parts[i] = sel; |
| 6208 |
} |
| 6209 |
return parts |
| 6210 |
}, |
| 6211 |
replaceSelection: function(code, collapse, origin) { |
| 6212 |
var dup = []; |
| 6213 |
for (var i = 0; i < this.sel.ranges.length; i++) |
| 6214 |
{ dup[i] = code; } |
| 6215 |
this.replaceSelections(dup, collapse, origin || "+input"); |
| 6216 |
}, |
| 6217 |
replaceSelections: docMethodOp(function(code, collapse, origin) { |
| 6218 |
var this$1 = this; |
| 6219 |
|
| 6220 |
var changes = [], sel = this.sel; |
| 6221 |
for (var i = 0; i < sel.ranges.length; i++) { |
| 6222 |
var range$$1 = sel.ranges[i]; |
| 6223 |
changes[i] = {from: range$$1.from(), to: range$$1.to(), text: this$1.splitLines(code[i]), origin: origin}; |
| 6224 |
} |
| 6225 |
var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse); |
| 6226 |
for (var i$1 = changes.length - 1; i$1 >= 0; i$1--) |
| 6227 |
{ makeChange(this$1, changes[i$1]); } |
| 6228 |
if (newSel) { setSelectionReplaceHistory(this, newSel); } |
| 6229 |
else if (this.cm) { ensureCursorVisible(this.cm); } |
| 6230 |
}), |
| 6231 |
undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}), |
| 6232 |
redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}), |
| 6233 |
undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}), |
| 6234 |
redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}), |
| 6235 |
|
| 6236 |
setExtending: function(val) {this.extend = val;}, |
| 6237 |
getExtending: function() {return this.extend}, |
| 6238 |
|
| 6239 |
historySize: function() { |
| 6240 |
var hist = this.history, done = 0, undone = 0; |
| 6241 |
for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } } |
| 6242 |
for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } } |
| 6243 |
return {undo: done, redo: undone} |
| 6244 |
}, |
| 6245 |
clearHistory: function() {this.history = new History(this.history.maxGeneration);}, |
| 6246 |
|
| 6247 |
markClean: function() { |
| 6248 |
this.cleanGeneration = this.changeGeneration(true); |
| 6249 |
}, |
| 6250 |
changeGeneration: function(forceSplit) { |
| 6251 |
if (forceSplit) |
| 6252 |
{ this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; } |
| 6253 |
return this.history.generation |
| 6254 |
}, |
| 6255 |
isClean: function (gen) { |
| 6256 |
return this.history.generation == (gen || this.cleanGeneration) |
| 6257 |
}, |
| 6258 |
|
| 6259 |
getHistory: function() { |
| 6260 |
return {done: copyHistoryArray(this.history.done), |
| 6261 |
undone: copyHistoryArray(this.history.undone)} |
| 6262 |
}, |
| 6263 |
setHistory: function(histData) { |
| 6264 |
var hist = this.history = new History(this.history.maxGeneration); |
| 6265 |
hist.done = copyHistoryArray(histData.done.slice(0), null, true); |
| 6266 |
hist.undone = copyHistoryArray(histData.undone.slice(0), null, true); |
| 6267 |
}, |
| 6268 |
|
| 6269 |
setGutterMarker: docMethodOp(function(line, gutterID, value) { |
| 6270 |
return changeLine(this, line, "gutter", function (line) { |
| 6271 |
var markers = line.gutterMarkers || (line.gutterMarkers = {}); |
| 6272 |
markers[gutterID] = value; |
| 6273 |
if (!value && isEmpty(markers)) { line.gutterMarkers = null; } |
| 6274 |
return true |
| 6275 |
}) |
| 6276 |
}), |
| 6277 |
|
| 6278 |
clearGutter: docMethodOp(function(gutterID) { |
| 6279 |
var this$1 = this; |
| 6280 |
|
| 6281 |
this.iter(function (line) { |
| 6282 |
if (line.gutterMarkers && line.gutterMarkers[gutterID]) { |
| 6283 |
changeLine(this$1, line, "gutter", function () { |
| 6284 |
line.gutterMarkers[gutterID] = null; |
| 6285 |
if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; } |
| 6286 |
return true |
| 6287 |
}); |
| 6288 |
} |
| 6289 |
}); |
| 6290 |
}), |
| 6291 |
|
| 6292 |
lineInfo: function(line) { |
| 6293 |
var n; |
| 6294 |
if (typeof line == "number") { |
| 6295 |
if (!isLine(this, line)) { return null } |
| 6296 |
n = line; |
| 6297 |
line = getLine(this, line); |
| 6298 |
if (!line) { return null } |
| 6299 |
} else { |
| 6300 |
n = lineNo(line); |
| 6301 |
if (n == null) { return null } |
| 6302 |
} |
| 6303 |
return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers, |
| 6304 |
textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass, |
| 6305 |
widgets: line.widgets} |
| 6306 |
}, |
| 6307 |
|
| 6308 |
addLineClass: docMethodOp(function(handle, where, cls) { |
| 6309 |
return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { |
| 6310 |
var prop = where == "text" ? "textClass" |
| 6311 |
: where == "background" ? "bgClass" |
| 6312 |
: where == "gutter" ? "gutterClass" : "wrapClass"; |
| 6313 |
if (!line[prop]) { line[prop] = cls; } |
| 6314 |
else if (classTest(cls).test(line[prop])) { return false } |
| 6315 |
else { line[prop] += " " + cls; } |
| 6316 |
return true |
| 6317 |
}) |
| 6318 |
}), |
| 6319 |
removeLineClass: docMethodOp(function(handle, where, cls) { |
| 6320 |
return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { |
| 6321 |
var prop = where == "text" ? "textClass" |
| 6322 |
: where == "background" ? "bgClass" |
| 6323 |
: where == "gutter" ? "gutterClass" : "wrapClass"; |
| 6324 |
var cur = line[prop]; |
| 6325 |
if (!cur) { return false } |
| 6326 |
else if (cls == null) { line[prop] = null; } |
| 6327 |
else { |
| 6328 |
var found = cur.match(classTest(cls)); |
| 6329 |
if (!found) { return false } |
| 6330 |
var end = found.index + found[0].length; |
| 6331 |
line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null; |
| 6332 |
} |
| 6333 |
return true |
| 6334 |
}) |
| 6335 |
}), |
| 6336 |
|
| 6337 |
addLineWidget: docMethodOp(function(handle, node, options) { |
| 6338 |
return addLineWidget(this, handle, node, options) |
| 6339 |
}), |
| 6340 |
removeLineWidget: function(widget) { widget.clear(); }, |
| 6341 |
|
| 6342 |
markText: function(from, to, options) { |
| 6343 |
return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range") |
| 6344 |
}, |
| 6345 |
setBookmark: function(pos, options) { |
| 6346 |
var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options), |
| 6347 |
insertLeft: options && options.insertLeft, |
| 6348 |
clearWhenEmpty: false, shared: options && options.shared, |
| 6349 |
handleMouseEvents: options && options.handleMouseEvents}; |
| 6350 |
pos = clipPos(this, pos); |
| 6351 |
return markText(this, pos, pos, realOpts, "bookmark") |
| 6352 |
}, |
| 6353 |
findMarksAt: function(pos) { |
| 6354 |
pos = clipPos(this, pos); |
| 6355 |
var markers = [], spans = getLine(this, pos.line).markedSpans; |
| 6356 |
if (spans) { for (var i = 0; i < spans.length; ++i) { |
| 6357 |
var span = spans[i]; |
| 6358 |
if ((span.from == null || span.from <= pos.ch) && |
| 6359 |
(span.to == null || span.to >= pos.ch)) |
| 6360 |
{ markers.push(span.marker.parent || span.marker); } |
| 6361 |
} } |
| 6362 |
return markers |
| 6363 |
}, |
| 6364 |
findMarks: function(from, to, filter) { |
| 6365 |
from = clipPos(this, from); to = clipPos(this, to); |
| 6366 |
var found = [], lineNo$$1 = from.line; |
| 6367 |
this.iter(from.line, to.line + 1, function (line) { |
| 6368 |
var spans = line.markedSpans; |
| 6369 |
if (spans) { for (var i = 0; i < spans.length; i++) { |
| 6370 |
var span = spans[i]; |
| 6371 |
if (!(span.to != null && lineNo$$1 == from.line && from.ch >= span.to || |
| 6372 |
span.from == null && lineNo$$1 != from.line || |
| 6373 |
span.from != null && lineNo$$1 == to.line && span.from >= to.ch) && |
| 6374 |
(!filter || filter(span.marker))) |
| 6375 |
{ found.push(span.marker.parent || span.marker); } |
| 6376 |
} } |
| 6377 |
++lineNo$$1; |
| 6378 |
}); |
| 6379 |
return found |
| 6380 |
}, |
| 6381 |
getAllMarks: function() { |
| 6382 |
var markers = []; |
| 6383 |
this.iter(function (line) { |
| 6384 |
var sps = line.markedSpans; |
| 6385 |
if (sps) { for (var i = 0; i < sps.length; ++i) |
| 6386 |
{ if (sps[i].from != null) { markers.push(sps[i].marker); } } } |
| 6387 |
}); |
| 6388 |
return markers |
| 6389 |
}, |
| 6390 |
|
| 6391 |
posFromIndex: function(off) { |
| 6392 |
var ch, lineNo$$1 = this.first, sepSize = this.lineSeparator().length; |
| 6393 |
this.iter(function (line) { |
| 6394 |
var sz = line.text.length + sepSize; |
| 6395 |
if (sz > off) { ch = off; return true } |
| 6396 |
off -= sz; |
| 6397 |
++lineNo$$1; |
| 6398 |
}); |
| 6399 |
return clipPos(this, Pos(lineNo$$1, ch)) |
| 6400 |
}, |
| 6401 |
indexFromPos: function (coords) { |
| 6402 |
coords = clipPos(this, coords); |
| 6403 |
var index = coords.ch; |
| 6404 |
if (coords.line < this.first || coords.ch < 0) { return 0 } |
| 6405 |
var sepSize = this.lineSeparator().length; |
| 6406 |
this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value |
| 6407 |
index += line.text.length + sepSize; |
| 6408 |
}); |
| 6409 |
return index |
| 6410 |
}, |
| 6411 |
|
| 6412 |
copy: function(copyHistory) { |
| 6413 |
var doc = new Doc(getLines(this, this.first, this.first + this.size), |
| 6414 |
this.modeOption, this.first, this.lineSep, this.direction); |
| 6415 |
doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft; |
| 6416 |
doc.sel = this.sel; |
| 6417 |
doc.extend = false; |
| 6418 |
if (copyHistory) { |
| 6419 |
doc.history.undoDepth = this.history.undoDepth; |
| 6420 |
doc.setHistory(this.getHistory()); |
| 6421 |
} |
| 6422 |
return doc |
| 6423 |
}, |
| 6424 |
|
| 6425 |
linkedDoc: function(options) { |
| 6426 |
if (!options) { options = {}; } |
| 6427 |
var from = this.first, to = this.first + this.size; |
| 6428 |
if (options.from != null && options.from > from) { from = options.from; } |
| 6429 |
if (options.to != null && options.to < to) { to = options.to; } |
| 6430 |
var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction); |
| 6431 |
if (options.sharedHist) { copy.history = this.history |
| 6432 |
; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist}); |
| 6433 |
copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]; |
| 6434 |
copySharedMarkers(copy, findSharedMarkers(this)); |
| 6435 |
return copy |
| 6436 |
}, |
| 6437 |
unlinkDoc: function(other) { |
| 6438 |
var this$1 = this; |
| 6439 |
|
| 6440 |
if (other instanceof CodeMirror) { other = other.doc; } |
| 6441 |
if (this.linked) { for (var i = 0; i < this.linked.length; ++i) { |
| 6442 |
var link = this$1.linked[i]; |
| 6443 |
if (link.doc != other) { continue } |
| 6444 |
this$1.linked.splice(i, 1); |
| 6445 |
other.unlinkDoc(this$1); |
| 6446 |
detachSharedMarkers(findSharedMarkers(this$1)); |
| 6447 |
break |
| 6448 |
} } |
| 6449 |
// If the histories were shared, split them again |
| 6450 |
if (other.history == this.history) { |
| 6451 |
var splitIds = [other.id]; |
| 6452 |
linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true); |
| 6453 |
other.history = new History(null); |
| 6454 |
other.history.done = copyHistoryArray(this.history.done, splitIds); |
| 6455 |
other.history.undone = copyHistoryArray(this.history.undone, splitIds); |
| 6456 |
} |
| 6457 |
}, |
| 6458 |
iterLinkedDocs: function(f) {linkedDocs(this, f);}, |
| 6459 |
|
| 6460 |
getMode: function() {return this.mode}, |
| 6461 |
getEditor: function() {return this.cm}, |
| 6462 |
|
| 6463 |
splitLines: function(str) { |
| 6464 |
if (this.lineSep) { return str.split(this.lineSep) } |
| 6465 |
return splitLinesAuto(str) |
| 6466 |
}, |
| 6467 |
lineSeparator: function() { return this.lineSep || "\n" }, |
| 6468 |
|
| 6469 |
setDirection: docMethodOp(function (dir) { |
| 6470 |
if (dir != "rtl") { dir = "ltr"; } |
| 6471 |
if (dir == this.direction) { return } |
| 6472 |
this.direction = dir; |
| 6473 |
this.iter(function (line) { return line.order = null; }); |
| 6474 |
if (this.cm) { directionChanged(this.cm); } |
| 6475 |
}) |
| 6476 |
}); |
| 6477 |
|
| 6478 |
// Public alias. |
| 6479 |
Doc.prototype.eachLine = Doc.prototype.iter; |
| 6480 |
|
| 6481 |
// Kludge to work around strange IE behavior where it'll sometimes |
| 6482 |
// re-fire a series of drag-related events right after the drop (#1551) |
| 6483 |
var lastDrop = 0; |
| 6484 |
|
| 6485 |
function onDrop(e) { |
| 6486 |
var cm = this; |
| 6487 |
clearDragCursor(cm); |
| 6488 |
if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) |
| 6489 |
{ return } |
| 6490 |
e_preventDefault(e); |
| 6491 |
if (ie) { lastDrop = +new Date; } |
| 6492 |
var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files; |
| 6493 |
if (!pos || cm.isReadOnly()) { return } |
| 6494 |
// Might be a file drop, in which case we simply extract the text |
| 6495 |
// and insert it. |
| 6496 |
if (files && files.length && window.FileReader && window.File) { |
| 6497 |
var n = files.length, text = Array(n), read = 0; |
| 6498 |
var loadFile = function (file, i) { |
| 6499 |
if (cm.options.allowDropFileTypes && |
| 6500 |
indexOf(cm.options.allowDropFileTypes, file.type) == -1) |
| 6501 |
{ return } |
| 6502 |
|
| 6503 |
var reader = new FileReader; |
| 6504 |
reader.onload = operation(cm, function () { |
| 6505 |
var content = reader.result; |
| 6506 |
if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) { content = ""; } |
| 6507 |
text[i] = content; |
| 6508 |
if (++read == n) { |
| 6509 |
pos = clipPos(cm.doc, pos); |
| 6510 |
var change = {from: pos, to: pos, |
| 6511 |
text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())), |
| 6512 |
origin: "paste"}; |
| 6513 |
makeChange(cm.doc, change); |
| 6514 |
setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change))); |
| 6515 |
} |
| 6516 |
}); |
| 6517 |
reader.readAsText(file); |
| 6518 |
}; |
| 6519 |
for (var i = 0; i < n; ++i) { loadFile(files[i], i); } |
| 6520 |
} else { // Normal drop |
| 6521 |
// Don't do a replace if the drop happened inside of the selected text. |
| 6522 |
if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) { |
| 6523 |
cm.state.draggingText(e); |
| 6524 |
// Ensure the editor is re-focused |
| 6525 |
setTimeout(function () { return cm.display.input.focus(); }, 20); |
| 6526 |
return |
| 6527 |
} |
| 6528 |
try { |
| 6529 |
var text$1 = e.dataTransfer.getData("Text"); |
| 6530 |
if (text$1) { |
| 6531 |
var selected; |
| 6532 |
if (cm.state.draggingText && !cm.state.draggingText.copy) |
| 6533 |
{ selected = cm.listSelections(); } |
| 6534 |
setSelectionNoUndo(cm.doc, simpleSelection(pos, pos)); |
| 6535 |
if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1) |
| 6536 |
{ replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag"); } } |
| 6537 |
cm.replaceSelection(text$1, "around", "paste"); |
| 6538 |
cm.display.input.focus(); |
| 6539 |
} |
| 6540 |
} |
| 6541 |
catch(e){} |
| 6542 |
} |
| 6543 |
} |
| 6544 |
|
| 6545 |
function onDragStart(cm, e) { |
| 6546 |
if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return } |
| 6547 |
if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return } |
| 6548 |
|
| 6549 |
e.dataTransfer.setData("Text", cm.getSelection()); |
| 6550 |
e.dataTransfer.effectAllowed = "copyMove"; |
| 6551 |
|
| 6552 |
// Use dummy image instead of default browsers image. |
| 6553 |
// Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there. |
| 6554 |
if (e.dataTransfer.setDragImage && !safari) { |
| 6555 |
var img = elt("img", null, null, "position: fixed; left: 0; top: 0;"); |
| 6556 |
img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="; |
| 6557 |
if (presto) { |
| 6558 |
img.width = img.height = 1; |
| 6559 |
cm.display.wrapper.appendChild(img); |
| 6560 |
// Force a relayout, or Opera won't use our image for some obscure reason |
| 6561 |
img._top = img.offsetTop; |
| 6562 |
} |
| 6563 |
e.dataTransfer.setDragImage(img, 0, 0); |
| 6564 |
if (presto) { img.parentNode.removeChild(img); } |
| 6565 |
} |
| 6566 |
} |
| 6567 |
|
| 6568 |
function onDragOver(cm, e) { |
| 6569 |
var pos = posFromMouse(cm, e); |
| 6570 |
if (!pos) { return } |
| 6571 |
var frag = document.createDocumentFragment(); |
| 6572 |
drawSelectionCursor(cm, pos, frag); |
| 6573 |
if (!cm.display.dragCursor) { |
| 6574 |
cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors"); |
| 6575 |
cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv); |
| 6576 |
} |
| 6577 |
removeChildrenAndAdd(cm.display.dragCursor, frag); |
| 6578 |
} |
| 6579 |
|
| 6580 |
function clearDragCursor(cm) { |
| 6581 |
if (cm.display.dragCursor) { |
| 6582 |
cm.display.lineSpace.removeChild(cm.display.dragCursor); |
| 6583 |
cm.display.dragCursor = null; |
| 6584 |
} |
| 6585 |
} |
| 6586 |
|
| 6587 |
// These must be handled carefully, because naively registering a |
| 6588 |
// handler for each editor will cause the editors to never be |
| 6589 |
// garbage collected. |
| 6590 |
|
| 6591 |
function forEachCodeMirror(f) { |
| 6592 |
if (!document.getElementsByClassName) { return } |
| 6593 |
var byClass = document.getElementsByClassName("CodeMirror"), editors = []; |
| 6594 |
for (var i = 0; i < byClass.length; i++) { |
| 6595 |
var cm = byClass[i].CodeMirror; |
| 6596 |
if (cm) { editors.push(cm); } |
| 6597 |
} |
| 6598 |
if (editors.length) { editors[0].operation(function () { |
| 6599 |
for (var i = 0; i < editors.length; i++) { f(editors[i]); } |
| 6600 |
}); } |
| 6601 |
} |
| 6602 |
|
| 6603 |
var globalsRegistered = false; |
| 6604 |
function ensureGlobalHandlers() { |
| 6605 |
if (globalsRegistered) { return } |
| 6606 |
registerGlobalHandlers(); |
| 6607 |
globalsRegistered = true; |
| 6608 |
} |
| 6609 |
function registerGlobalHandlers() { |
| 6610 |
// When the window resizes, we need to refresh active editors. |
| 6611 |
var resizeTimer; |
| 6612 |
on(window, "resize", function () { |
| 6613 |
if (resizeTimer == null) { resizeTimer = setTimeout(function () { |
| 6614 |
resizeTimer = null; |
| 6615 |
forEachCodeMirror(onResize); |
| 6616 |
}, 100); } |
| 6617 |
}); |
| 6618 |
// When the window loses focus, we want to show the editor as blurred |
| 6619 |
on(window, "blur", function () { return forEachCodeMirror(onBlur); }); |
| 6620 |
} |
| 6621 |
// Called when the window resizes |
| 6622 |
function onResize(cm) { |
| 6623 |
var d = cm.display; |
| 6624 |
// Might be a text scaling operation, clear size caches. |
| 6625 |
d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; |
| 6626 |
d.scrollbarsClipped = false; |
| 6627 |
cm.setSize(); |
| 6628 |
} |
| 6629 |
|
| 6630 |
var keyNames = { |
| 6631 |
3: "Pause", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt", |
| 6632 |
19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End", |
| 6633 |
36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert", |
| 6634 |
46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod", |
| 6635 |
106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete", 145: "ScrollLock", |
| 6636 |
173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", |
| 6637 |
221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete", |
| 6638 |
63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert" |
| 6639 |
}; |
| 6640 |
|
| 6641 |
// Number keys |
| 6642 |
for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); } |
| 6643 |
// Alphabetic keys |
| 6644 |
for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); } |
| 6645 |
// Function keys |
| 6646 |
for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2; } |
| 6647 |
|
| 6648 |
var keyMap = {}; |
| 6649 |
|
| 6650 |
keyMap.basic = { |
| 6651 |
"Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown", |
| 6652 |
"End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown", |
| 6653 |
"Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore", |
| 6654 |
"Tab": "defaultTab", "Shift-Tab": "indentAuto", |
| 6655 |
"Enter": "newlineAndIndent", "Insert": "toggleOverwrite", |
| 6656 |
"Esc": "singleSelection" |
| 6657 |
}; |
| 6658 |
// Note that the save and find-related commands aren't defined by |
| 6659 |
// default. User code or addons can define them. Unknown commands |
| 6660 |
// are simply ignored. |
| 6661 |
keyMap.pcDefault = { |
| 6662 |
"Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo", |
| 6663 |
"Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown", |
| 6664 |
"Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd", |
| 6665 |
"Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find", |
| 6666 |
"Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll", |
| 6667 |
"Ctrl-[": "indentLess", "Ctrl-]": "indentMore", |
| 6668 |
"Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection", |
| 6669 |
"fallthrough": "basic" |
| 6670 |
}; |
| 6671 |
// Very basic readline/emacs-style bindings, which are standard on Mac. |
| 6672 |
keyMap.emacsy = { |
| 6673 |
"Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown", |
| 6674 |
"Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", |
| 6675 |
"Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", |
| 6676 |
"Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars", |
| 6677 |
"Ctrl-O": "openLine" |
| 6678 |
}; |
| 6679 |
keyMap.macDefault = { |
| 6680 |
"Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo", |
| 6681 |
"Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft", |
| 6682 |
"Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore", |
| 6683 |
"Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find", |
| 6684 |
"Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll", |
| 6685 |
"Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight", |
| 6686 |
"Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd", |
| 6687 |
"fallthrough": ["basic", "emacsy"] |
| 6688 |
}; |
| 6689 |
keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault; |
| 6690 |
|
| 6691 |
// KEYMAP DISPATCH |
| 6692 |
|
| 6693 |
function normalizeKeyName(name) { |
| 6694 |
var parts = name.split(/-(?!$)/); |
| 6695 |
name = parts[parts.length - 1]; |
| 6696 |
var alt, ctrl, shift, cmd; |
| 6697 |
for (var i = 0; i < parts.length - 1; i++) { |
| 6698 |
var mod = parts[i]; |
| 6699 |
if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; } |
| 6700 |
else if (/^a(lt)?$/i.test(mod)) { alt = true; } |
| 6701 |
else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; } |
| 6702 |
else if (/^s(hift)?$/i.test(mod)) { shift = true; } |
| 6703 |
else { throw new Error("Unrecognized modifier name: " + mod) } |
| 6704 |
} |
| 6705 |
if (alt) { name = "Alt-" + name; } |
| 6706 |
if (ctrl) { name = "Ctrl-" + name; } |
| 6707 |
if (cmd) { name = "Cmd-" + name; } |
| 6708 |
if (shift) { name = "Shift-" + name; } |
| 6709 |
return name |
| 6710 |
} |
| 6711 |
|
| 6712 |
// This is a kludge to keep keymaps mostly working as raw objects |
| 6713 |
// (backwards compatibility) while at the same time support features |
| 6714 |
// like normalization and multi-stroke key bindings. It compiles a |
| 6715 |
// new normalized keymap, and then updates the old object to reflect |
| 6716 |
// this. |
| 6717 |
function normalizeKeyMap(keymap) { |
| 6718 |
var copy = {}; |
| 6719 |
for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) { |
| 6720 |
var value = keymap[keyname]; |
| 6721 |
if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue } |
| 6722 |
if (value == "...") { delete keymap[keyname]; continue } |
| 6723 |
|
| 6724 |
var keys = map(keyname.split(" "), normalizeKeyName); |
| 6725 |
for (var i = 0; i < keys.length; i++) { |
| 6726 |
var val = (void 0), name = (void 0); |
| 6727 |
if (i == keys.length - 1) { |
| 6728 |
name = keys.join(" "); |
| 6729 |
val = value; |
| 6730 |
} else { |
| 6731 |
name = keys.slice(0, i + 1).join(" "); |
| 6732 |
val = "..."; |
| 6733 |
} |
| 6734 |
var prev = copy[name]; |
| 6735 |
if (!prev) { copy[name] = val; } |
| 6736 |
else if (prev != val) { throw new Error("Inconsistent bindings for " + name) } |
| 6737 |
} |
| 6738 |
delete keymap[keyname]; |
| 6739 |
} } |
| 6740 |
for (var prop in copy) { keymap[prop] = copy[prop]; } |
| 6741 |
return keymap |
| 6742 |
} |
| 6743 |
|
| 6744 |
function lookupKey(key, map$$1, handle, context) { |
| 6745 |
map$$1 = getKeyMap(map$$1); |
| 6746 |
var found = map$$1.call ? map$$1.call(key, context) : map$$1[key]; |
| 6747 |
if (found === false) { return "nothing" } |
| 6748 |
if (found === "...") { return "multi" } |
| 6749 |
if (found != null && handle(found)) { return "handled" } |
| 6750 |
|
| 6751 |
if (map$$1.fallthrough) { |
| 6752 |
if (Object.prototype.toString.call(map$$1.fallthrough) != "[object Array]") |
| 6753 |
{ return lookupKey(key, map$$1.fallthrough, handle, context) } |
| 6754 |
for (var i = 0; i < map$$1.fallthrough.length; i++) { |
| 6755 |
var result = lookupKey(key, map$$1.fallthrough[i], handle, context); |
| 6756 |
if (result) { return result } |
| 6757 |
} |
| 6758 |
} |
| 6759 |
} |
| 6760 |
|
| 6761 |
// Modifier key presses don't count as 'real' key presses for the |
| 6762 |
// purpose of keymap fallthrough. |
| 6763 |
function isModifierKey(value) { |
| 6764 |
var name = typeof value == "string" ? value : keyNames[value.keyCode]; |
| 6765 |
return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod" |
| 6766 |
} |
| 6767 |
|
| 6768 |
function addModifierNames(name, event, noShift) { |
| 6769 |
var base = name; |
| 6770 |
if (event.altKey && base != "Alt") { name = "Alt-" + name; } |
| 6771 |
if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name; } |
| 6772 |
if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") { name = "Cmd-" + name; } |
| 6773 |
if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name; } |
| 6774 |
return name |
| 6775 |
} |
| 6776 |
|
| 6777 |
// Look up the name of a key as indicated by an event object. |
| 6778 |
function keyName(event, noShift) { |
| 6779 |
if (presto && event.keyCode == 34 && event["char"]) { return false } |
| 6780 |
var name = keyNames[event.keyCode]; |
| 6781 |
if (name == null || event.altGraphKey) { return false } |
| 6782 |
// Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause, |
| 6783 |
// so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+) |
| 6784 |
if (event.keyCode == 3 && event.code) { name = event.code; } |
| 6785 |
return addModifierNames(name, event, noShift) |
| 6786 |
} |
| 6787 |
|
| 6788 |
function getKeyMap(val) { |
| 6789 |
return typeof val == "string" ? keyMap[val] : val |
| 6790 |
} |
| 6791 |
|
| 6792 |
// Helper for deleting text near the selection(s), used to implement |
| 6793 |
// backspace, delete, and similar functionality. |
| 6794 |
function deleteNearSelection(cm, compute) { |
| 6795 |
var ranges = cm.doc.sel.ranges, kill = []; |
| 6796 |
// Build up a set of ranges to kill first, merging overlapping |
| 6797 |
// ranges. |
| 6798 |
for (var i = 0; i < ranges.length; i++) { |
| 6799 |
var toKill = compute(ranges[i]); |
| 6800 |
while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) { |
| 6801 |
var replaced = kill.pop(); |
| 6802 |
if (cmp(replaced.from, toKill.from) < 0) { |
| 6803 |
toKill.from = replaced.from; |
| 6804 |
break |
| 6805 |
} |
| 6806 |
} |
| 6807 |
kill.push(toKill); |
| 6808 |
} |
| 6809 |
// Next, remove those actual ranges. |
| 6810 |
runInOp(cm, function () { |
| 6811 |
for (var i = kill.length - 1; i >= 0; i--) |
| 6812 |
{ replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); } |
| 6813 |
ensureCursorVisible(cm); |
| 6814 |
}); |
| 6815 |
} |
| 6816 |
|
| 6817 |
function moveCharLogically(line, ch, dir) { |
| 6818 |
var target = skipExtendingChars(line.text, ch + dir, dir); |
| 6819 |
return target < 0 || target > line.text.length ? null : target |
| 6820 |
} |
| 6821 |
|
| 6822 |
function moveLogically(line, start, dir) { |
| 6823 |
var ch = moveCharLogically(line, start.ch, dir); |
| 6824 |
return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before") |
| 6825 |
} |
| 6826 |
|
| 6827 |
function endOfLine(visually, cm, lineObj, lineNo, dir) { |
| 6828 |
if (visually) { |
| 6829 |
var order = getOrder(lineObj, cm.doc.direction); |
| 6830 |
if (order) { |
| 6831 |
var part = dir < 0 ? lst(order) : order[0]; |
| 6832 |
var moveInStorageOrder = (dir < 0) == (part.level == 1); |
| 6833 |
var sticky = moveInStorageOrder ? "after" : "before"; |
| 6834 |
var ch; |
| 6835 |
// With a wrapped rtl chunk (possibly spanning multiple bidi parts), |
| 6836 |
// it could be that the last bidi part is not on the last visual line, |
| 6837 |
// since visual lines contain content order-consecutive chunks. |
| 6838 |
// Thus, in rtl, we are looking for the first (content-order) character |
| 6839 |
// in the rtl chunk that is on the last line (that is, the same line |
| 6840 |
// as the last (content-order) character). |
| 6841 |
if (part.level > 0 || cm.doc.direction == "rtl") { |
| 6842 |
var prep = prepareMeasureForLine(cm, lineObj); |
| 6843 |
ch = dir < 0 ? lineObj.text.length - 1 : 0; |
| 6844 |
var targetTop = measureCharPrepared(cm, prep, ch).top; |
| 6845 |
ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch); |
| 6846 |
if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1); } |
| 6847 |
} else { ch = dir < 0 ? part.to : part.from; } |
| 6848 |
return new Pos(lineNo, ch, sticky) |
| 6849 |
} |
| 6850 |
} |
| 6851 |
return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after") |
| 6852 |
} |
| 6853 |
|
| 6854 |
function moveVisually(cm, line, start, dir) { |
| 6855 |
var bidi = getOrder(line, cm.doc.direction); |
| 6856 |
if (!bidi) { return moveLogically(line, start, dir) } |
| 6857 |
if (start.ch >= line.text.length) { |
| 6858 |
start.ch = line.text.length; |
| 6859 |
start.sticky = "before"; |
| 6860 |
} else if (start.ch <= 0) { |
| 6861 |
start.ch = 0; |
| 6862 |
start.sticky = "after"; |
| 6863 |
} |
| 6864 |
var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos]; |
| 6865 |
if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) { |
| 6866 |
// Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines, |
| 6867 |
// nothing interesting happens. |
| 6868 |
return moveLogically(line, start, dir) |
| 6869 |
} |
| 6870 |
|
| 6871 |
var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); }; |
| 6872 |
var prep; |
| 6873 |
var getWrappedLineExtent = function (ch) { |
| 6874 |
if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} } |
| 6875 |
prep = prep || prepareMeasureForLine(cm, line); |
| 6876 |
return wrappedLineExtentChar(cm, line, prep, ch) |
| 6877 |
}; |
| 6878 |
var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch); |
| 6879 |
|
| 6880 |
if (cm.doc.direction == "rtl" || part.level == 1) { |
| 6881 |
var moveInStorageOrder = (part.level == 1) == (dir < 0); |
| 6882 |
var ch = mv(start, moveInStorageOrder ? 1 : -1); |
| 6883 |
if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) { |
| 6884 |
// Case 2: We move within an rtl part or in an rtl editor on the same visual line |
| 6885 |
var sticky = moveInStorageOrder ? "before" : "after"; |
| 6886 |
return new Pos(start.line, ch, sticky) |
| 6887 |
} |
| 6888 |
} |
| 6889 |
|
| 6890 |
// Case 3: Could not move within this bidi part in this visual line, so leave |
| 6891 |
// the current bidi part |
| 6892 |
|
| 6893 |
var searchInVisualLine = function (partPos, dir, wrappedLineExtent) { |
| 6894 |
var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder |
| 6895 |
? new Pos(start.line, mv(ch, 1), "before") |
| 6896 |
: new Pos(start.line, ch, "after"); }; |
| 6897 |
|
| 6898 |
for (; partPos >= 0 && partPos < bidi.length; partPos += dir) { |
| 6899 |
var part = bidi[partPos]; |
| 6900 |
var moveInStorageOrder = (dir > 0) == (part.level != 1); |
| 6901 |
var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1); |
| 6902 |
if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) } |
| 6903 |
ch = moveInStorageOrder ? part.from : mv(part.to, -1); |
| 6904 |
if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) } |
| 6905 |
} |
| 6906 |
}; |
| 6907 |
|
| 6908 |
// Case 3a: Look for other bidi parts on the same visual line |
| 6909 |
var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent); |
| 6910 |
if (res) { return res } |
| 6911 |
|
| 6912 |
// Case 3b: Look for other bidi parts on the next visual line |
| 6913 |
var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1); |
| 6914 |
if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) { |
| 6915 |
res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh)); |
| 6916 |
if (res) { return res } |
| 6917 |
} |
| 6918 |
|
| 6919 |
// Case 4: Nowhere to move |
| 6920 |
return null |
| 6921 |
} |
| 6922 |
|
| 6923 |
// Commands are parameter-less actions that can be performed on an |
| 6924 |
// editor, mostly used for keybindings. |
| 6925 |
var commands = { |
| 6926 |
selectAll: selectAll, |
| 6927 |
singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); }, |
| 6928 |
killLine: function (cm) { return deleteNearSelection(cm, function (range) { |
| 6929 |
if (range.empty()) { |
| 6930 |
var len = getLine(cm.doc, range.head.line).text.length; |
| 6931 |
if (range.head.ch == len && range.head.line < cm.lastLine()) |
| 6932 |
{ return {from: range.head, to: Pos(range.head.line + 1, 0)} } |
| 6933 |
else |
| 6934 |
{ return {from: range.head, to: Pos(range.head.line, len)} } |
| 6935 |
} else { |
| 6936 |
return {from: range.from(), to: range.to()} |
| 6937 |
} |
| 6938 |
}); }, |
| 6939 |
deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({ |
| 6940 |
from: Pos(range.from().line, 0), |
| 6941 |
to: clipPos(cm.doc, Pos(range.to().line + 1, 0)) |
| 6942 |
}); }); }, |
| 6943 |
delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({ |
| 6944 |
from: Pos(range.from().line, 0), to: range.from() |
| 6945 |
}); }); }, |
| 6946 |
delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { |
| 6947 |
var top = cm.charCoords(range.head, "div").top + 5; |
| 6948 |
var leftPos = cm.coordsChar({left: 0, top: top}, "div"); |
| 6949 |
return {from: leftPos, to: range.from()} |
| 6950 |
}); }, |
| 6951 |
delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) { |
| 6952 |
var top = cm.charCoords(range.head, "div").top + 5; |
| 6953 |
var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div"); |
| 6954 |
return {from: range.from(), to: rightPos } |
| 6955 |
}); }, |
| 6956 |
undo: function (cm) { return cm.undo(); }, |
| 6957 |
redo: function (cm) { return cm.redo(); }, |
| 6958 |
undoSelection: function (cm) { return cm.undoSelection(); }, |
| 6959 |
redoSelection: function (cm) { return cm.redoSelection(); }, |
| 6960 |
goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); }, |
| 6961 |
goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); }, |
| 6962 |
goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); }, |
| 6963 |
{origin: "+move", bias: 1} |
| 6964 |
); }, |
| 6965 |
goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); }, |
| 6966 |
{origin: "+move", bias: 1} |
| 6967 |
); }, |
| 6968 |
goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); }, |
| 6969 |
{origin: "+move", bias: -1} |
| 6970 |
); }, |
| 6971 |
goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) { |
| 6972 |
var top = cm.cursorCoords(range.head, "div").top + 5; |
| 6973 |
return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div") |
| 6974 |
}, sel_move); }, |
| 6975 |
goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) { |
| 6976 |
var top = cm.cursorCoords(range.head, "div").top + 5; |
| 6977 |
return cm.coordsChar({left: 0, top: top}, "div") |
| 6978 |
}, sel_move); }, |
| 6979 |
goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) { |
| 6980 |
var top = cm.cursorCoords(range.head, "div").top + 5; |
| 6981 |
var pos = cm.coordsChar({left: 0, top: top}, "div"); |
| 6982 |
if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) } |
| 6983 |
return pos |
| 6984 |
}, sel_move); }, |
| 6985 |
goLineUp: function (cm) { return cm.moveV(-1, "line"); }, |
| 6986 |
goLineDown: function (cm) { return cm.moveV(1, "line"); }, |
| 6987 |
goPageUp: function (cm) { return cm.moveV(-1, "page"); }, |
| 6988 |
goPageDown: function (cm) { return cm.moveV(1, "page"); }, |
| 6989 |
goCharLeft: function (cm) { return cm.moveH(-1, "char"); }, |
| 6990 |
goCharRight: function (cm) { return cm.moveH(1, "char"); }, |
| 6991 |
goColumnLeft: function (cm) { return cm.moveH(-1, "column"); }, |
| 6992 |
goColumnRight: function (cm) { return cm.moveH(1, "column"); }, |
| 6993 |
goWordLeft: function (cm) { return cm.moveH(-1, "word"); }, |
| 6994 |
goGroupRight: function (cm) { return cm.moveH(1, "group"); }, |
| 6995 |
goGroupLeft: function (cm) { return cm.moveH(-1, "group"); }, |
| 6996 |
goWordRight: function (cm) { return cm.moveH(1, "word"); }, |
| 6997 |
delCharBefore: function (cm) { return cm.deleteH(-1, "char"); }, |
| 6998 |
delCharAfter: function (cm) { return cm.deleteH(1, "char"); }, |
| 6999 |
delWordBefore: function (cm) { return cm.deleteH(-1, "word"); }, |
| 7000 |
delWordAfter: function (cm) { return cm.deleteH(1, "word"); }, |
| 7001 |
delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); }, |
| 7002 |
delGroupAfter: function (cm) { return cm.deleteH(1, "group"); }, |
| 7003 |
indentAuto: function (cm) { return cm.indentSelection("smart"); }, |
| 7004 |
indentMore: function (cm) { return cm.indentSelection("add"); }, |
| 7005 |
indentLess: function (cm) { return cm.indentSelection("subtract"); }, |
| 7006 |
insertTab: function (cm) { return cm.replaceSelection("\t"); }, |
| 7007 |
insertSoftTab: function (cm) { |
| 7008 |
var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize; |
| 7009 |
for (var i = 0; i < ranges.length; i++) { |
| 7010 |
var pos = ranges[i].from(); |
| 7011 |
var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize); |
| 7012 |
spaces.push(spaceStr(tabSize - col % tabSize)); |
| 7013 |
} |
| 7014 |
cm.replaceSelections(spaces); |
| 7015 |
}, |
| 7016 |
defaultTab: function (cm) { |
| 7017 |
if (cm.somethingSelected()) { cm.indentSelection("add"); } |
| 7018 |
else { cm.execCommand("insertTab"); } |
| 7019 |
}, |
| 7020 |
// Swap the two chars left and right of each selection's head. |
| 7021 |
// Move cursor behind the two swapped characters afterwards. |
| 7022 |
// |
| 7023 |
// Doesn't consider line feeds a character. |
| 7024 |
// Doesn't scan more than one line above to find a character. |
| 7025 |
// Doesn't do anything on an empty line. |
| 7026 |
// Doesn't do anything with non-empty selections. |
| 7027 |
transposeChars: function (cm) { return runInOp(cm, function () { |
| 7028 |
var ranges = cm.listSelections(), newSel = []; |
| 7029 |
for (var i = 0; i < ranges.length; i++) { |
| 7030 |
if (!ranges[i].empty()) { continue } |
| 7031 |
var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text; |
| 7032 |
if (line) { |
| 7033 |
if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); } |
| 7034 |
if (cur.ch > 0) { |
| 7035 |
cur = new Pos(cur.line, cur.ch + 1); |
| 7036 |
cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2), |
| 7037 |
Pos(cur.line, cur.ch - 2), cur, "+transpose"); |
| 7038 |
} else if (cur.line > cm.doc.first) { |
| 7039 |
var prev = getLine(cm.doc, cur.line - 1).text; |
| 7040 |
if (prev) { |
| 7041 |
cur = new Pos(cur.line, 1); |
| 7042 |
cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() + |
| 7043 |
prev.charAt(prev.length - 1), |
| 7044 |
Pos(cur.line - 1, prev.length - 1), cur, "+transpose"); |
| 7045 |
} |
| 7046 |
} |
| 7047 |
} |
| 7048 |
newSel.push(new Range(cur, cur)); |
| 7049 |
} |
| 7050 |
cm.setSelections(newSel); |
| 7051 |
}); }, |
| 7052 |
newlineAndIndent: function (cm) { return runInOp(cm, function () { |
| 7053 |
var sels = cm.listSelections(); |
| 7054 |
for (var i = sels.length - 1; i >= 0; i--) |
| 7055 |
{ cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input"); } |
| 7056 |
sels = cm.listSelections(); |
| 7057 |
for (var i$1 = 0; i$1 < sels.length; i$1++) |
| 7058 |
{ cm.indentLine(sels[i$1].from().line, null, true); } |
| 7059 |
ensureCursorVisible(cm); |
| 7060 |
}); }, |
| 7061 |
openLine: function (cm) { return cm.replaceSelection("\n", "start"); }, |
| 7062 |
toggleOverwrite: function (cm) { return cm.toggleOverwrite(); } |
| 7063 |
}; |
| 7064 |
|
| 7065 |
|
| 7066 |
function lineStart(cm, lineN) { |
| 7067 |
var line = getLine(cm.doc, lineN); |
| 7068 |
var visual = visualLine(line); |
| 7069 |
if (visual != line) { lineN = lineNo(visual); } |
| 7070 |
return endOfLine(true, cm, visual, lineN, 1) |
| 7071 |
} |
| 7072 |
function lineEnd(cm, lineN) { |
| 7073 |
var line = getLine(cm.doc, lineN); |
| 7074 |
var visual = visualLineEnd(line); |
| 7075 |
if (visual != line) { lineN = lineNo(visual); } |
| 7076 |
return endOfLine(true, cm, line, lineN, -1) |
| 7077 |
} |
| 7078 |
function lineStartSmart(cm, pos) { |
| 7079 |
var start = lineStart(cm, pos.line); |
| 7080 |
var line = getLine(cm.doc, start.line); |
| 7081 |
var order = getOrder(line, cm.doc.direction); |
| 7082 |
if (!order || order[0].level == 0) { |
| 7083 |
var firstNonWS = Math.max(0, line.text.search(/\S/)); |
| 7084 |
var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch; |
| 7085 |
return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky) |
| 7086 |
} |
| 7087 |
return start |
| 7088 |
} |
| 7089 |
|
| 7090 |
// Run a handler that was bound to a key. |
| 7091 |
function doHandleBinding(cm, bound, dropShift) { |
| 7092 |
if (typeof bound == "string") { |
| 7093 |
bound = commands[bound]; |
| 7094 |
if (!bound) { return false } |
| 7095 |
} |
| 7096 |
// Ensure previous input has been read, so that the handler sees a |
| 7097 |
// consistent view of the document |
| 7098 |
cm.display.input.ensurePolled(); |
| 7099 |
var prevShift = cm.display.shift, done = false; |
| 7100 |
try { |
| 7101 |
if (cm.isReadOnly()) { cm.state.suppressEdits = true; } |
| 7102 |
if (dropShift) { cm.display.shift = false; } |
| 7103 |
done = bound(cm) != Pass; |
| 7104 |
} finally { |
| 7105 |
cm.display.shift = prevShift; |
| 7106 |
cm.state.suppressEdits = false; |
| 7107 |
} |
| 7108 |
return done |
| 7109 |
} |
| 7110 |
|
| 7111 |
function lookupKeyForEditor(cm, name, handle) { |
| 7112 |
for (var i = 0; i < cm.state.keyMaps.length; i++) { |
| 7113 |
var result = lookupKey(name, cm.state.keyMaps[i], handle, cm); |
| 7114 |
if (result) { return result } |
| 7115 |
} |
| 7116 |
return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm)) |
| 7117 |
|| lookupKey(name, cm.options.keyMap, handle, cm) |
| 7118 |
} |
| 7119 |
|
| 7120 |
// Note that, despite the name, this function is also used to check |
| 7121 |
// for bound mouse clicks. |
| 7122 |
|
| 7123 |
var stopSeq = new Delayed; |
| 7124 |
|
| 7125 |
function dispatchKey(cm, name, e, handle) { |
| 7126 |
var seq = cm.state.keySeq; |
| 7127 |
if (seq) { |
| 7128 |
if (isModifierKey(name)) { return "handled" } |
| 7129 |
if (/\'$/.test(name)) |
| 7130 |
{ cm.state.keySeq = null; } |
| 7131 |
else |
| 7132 |
{ stopSeq.set(50, function () { |
| 7133 |
if (cm.state.keySeq == seq) { |
| 7134 |
cm.state.keySeq = null; |
| 7135 |
cm.display.input.reset(); |
| 7136 |
} |
| 7137 |
}); } |
| 7138 |
if (dispatchKeyInner(cm, seq + " " + name, e, handle)) { return true } |
| 7139 |
} |
| 7140 |
return dispatchKeyInner(cm, name, e, handle) |
| 7141 |
} |
| 7142 |
|
| 7143 |
function dispatchKeyInner(cm, name, e, handle) { |
| 7144 |
var result = lookupKeyForEditor(cm, name, handle); |
| 7145 |
|
| 7146 |
if (result == "multi") |
| 7147 |
{ cm.state.keySeq = name; } |
| 7148 |
if (result == "handled") |
| 7149 |
{ signalLater(cm, "keyHandled", cm, name, e); } |
| 7150 |
|
| 7151 |
if (result == "handled" || result == "multi") { |
| 7152 |
e_preventDefault(e); |
| 7153 |
restartBlink(cm); |
| 7154 |
} |
| 7155 |
|
| 7156 |
return !!result |
| 7157 |
} |
| 7158 |
|
| 7159 |
// Handle a key from the keydown event. |
| 7160 |
function handleKeyBinding(cm, e) { |
| 7161 |
var name = keyName(e, true); |
| 7162 |
if (!name) { return false } |
| 7163 |
|
| 7164 |
if (e.shiftKey && !cm.state.keySeq) { |
| 7165 |
// First try to resolve full name (including 'Shift-'). Failing |
| 7166 |
// that, see if there is a cursor-motion command (starting with |
| 7167 |
// 'go') bound to the keyname without 'Shift-'. |
| 7168 |
return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); }) |
| 7169 |
|| dispatchKey(cm, name, e, function (b) { |
| 7170 |
if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion) |
| 7171 |
{ return doHandleBinding(cm, b) } |
| 7172 |
}) |
| 7173 |
} else { |
| 7174 |
return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); }) |
| 7175 |
} |
| 7176 |
} |
| 7177 |
|
| 7178 |
// Handle a key from the keypress event |
| 7179 |
function handleCharBinding(cm, e, ch) { |
| 7180 |
return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); }) |
| 7181 |
} |
| 7182 |
|
| 7183 |
var lastStoppedKey = null; |
| 7184 |
function onKeyDown(e) { |
| 7185 |
var cm = this; |
| 7186 |
cm.curOp.focus = activeElt(); |
| 7187 |
if (signalDOMEvent(cm, e)) { return } |
| 7188 |
// IE does strange things with escape. |
| 7189 |
if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; } |
| 7190 |
var code = e.keyCode; |
| 7191 |
cm.display.shift = code == 16 || e.shiftKey; |
| 7192 |
var handled = handleKeyBinding(cm, e); |
| 7193 |
if (presto) { |
| 7194 |
lastStoppedKey = handled ? code : null; |
| 7195 |
// Opera has no cut event... we try to at least catch the key combo |
| 7196 |
if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey)) |
| 7197 |
{ cm.replaceSelection("", null, "cut"); } |
| 7198 |
} |
| 7199 |
|
| 7200 |
// Turn mouse into crosshair when Alt is held on Mac. |
| 7201 |
if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className)) |
| 7202 |
{ showCrossHair(cm); } |
| 7203 |
} |
| 7204 |
|
| 7205 |
function showCrossHair(cm) { |
| 7206 |
var lineDiv = cm.display.lineDiv; |
| 7207 |
addClass(lineDiv, "CodeMirror-crosshair"); |
| 7208 |
|
| 7209 |
function up(e) { |
| 7210 |
if (e.keyCode == 18 || !e.altKey) { |
| 7211 |
rmClass(lineDiv, "CodeMirror-crosshair"); |
| 7212 |
off(document, "keyup", up); |
| 7213 |
off(document, "mouseover", up); |
| 7214 |
} |
| 7215 |
} |
| 7216 |
on(document, "keyup", up); |
| 7217 |
on(document, "mouseover", up); |
| 7218 |
} |
| 7219 |
|
| 7220 |
function onKeyUp(e) { |
| 7221 |
if (e.keyCode == 16) { this.doc.sel.shift = false; } |
| 7222 |
signalDOMEvent(this, e); |
| 7223 |
} |
| 7224 |
|
| 7225 |
function onKeyPress(e) { |
| 7226 |
var cm = this; |
| 7227 |
if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return } |
| 7228 |
var keyCode = e.keyCode, charCode = e.charCode; |
| 7229 |
if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return} |
| 7230 |
if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return } |
| 7231 |
var ch = String.fromCharCode(charCode == null ? keyCode : charCode); |
| 7232 |
// Some browsers fire keypress events for backspace |
| 7233 |
if (ch == "\x08") { return } |
| 7234 |
if (handleCharBinding(cm, e, ch)) { return } |
| 7235 |
cm.display.input.onKeyPress(e); |
| 7236 |
} |
| 7237 |
|
| 7238 |
var DOUBLECLICK_DELAY = 400; |
| 7239 |
|
| 7240 |
var PastClick = function(time, pos, button) { |
| 7241 |
this.time = time; |
| 7242 |
this.pos = pos; |
| 7243 |
this.button = button; |
| 7244 |
}; |
| 7245 |
|
| 7246 |
PastClick.prototype.compare = function (time, pos, button) { |
| 7247 |
return this.time + DOUBLECLICK_DELAY > time && |
| 7248 |
cmp(pos, this.pos) == 0 && button == this.button |
| 7249 |
}; |
| 7250 |
|
| 7251 |
var lastClick, lastDoubleClick; |
| 7252 |
function clickRepeat(pos, button) { |
| 7253 |
var now = +new Date; |
| 7254 |
if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) { |
| 7255 |
lastClick = lastDoubleClick = null; |
| 7256 |
return "triple" |
| 7257 |
} else if (lastClick && lastClick.compare(now, pos, button)) { |
| 7258 |
lastDoubleClick = new PastClick(now, pos, button); |
| 7259 |
lastClick = null; |
| 7260 |
return "double" |
| 7261 |
} else { |
| 7262 |
lastClick = new PastClick(now, pos, button); |
| 7263 |
lastDoubleClick = null; |
| 7264 |
return "single" |
| 7265 |
} |
| 7266 |
} |
| 7267 |
|
| 7268 |
// A mouse down can be a single click, double click, triple click, |
| 7269 |
// start of selection drag, start of text drag, new cursor |
| 7270 |
// (ctrl-click), rectangle drag (alt-drag), or xwin |
| 7271 |
// middle-click-paste. Or it might be a click on something we should |
| 7272 |
// not interfere with, such as a scrollbar or widget. |
| 7273 |
function onMouseDown(e) { |
| 7274 |
var cm = this, display = cm.display; |
| 7275 |
if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return } |
| 7276 |
display.input.ensurePolled(); |
| 7277 |
display.shift = e.shiftKey; |
| 7278 |
|
| 7279 |
if (eventInWidget(display, e)) { |
| 7280 |
if (!webkit) { |
| 7281 |
// Briefly turn off draggability, to allow widgets to do |
| 7282 |
// normal dragging things. |
| 7283 |
display.scroller.draggable = false; |
| 7284 |
setTimeout(function () { return display.scroller.draggable = true; }, 100); |
| 7285 |
} |
| 7286 |
return |
| 7287 |
} |
| 7288 |
if (clickInGutter(cm, e)) { return } |
| 7289 |
var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : "single"; |
| 7290 |
window.focus(); |
| 7291 |
|
| 7292 |
// #3261: make sure, that we're not starting a second selection |
| 7293 |
if (button == 1 && cm.state.selectingText) |
| 7294 |
{ cm.state.selectingText(e); } |
| 7295 |
|
| 7296 |
if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return } |
| 7297 |
|
| 7298 |
if (button == 1) { |
| 7299 |
if (pos) { leftButtonDown(cm, pos, repeat, e); } |
| 7300 |
else if (e_target(e) == display.scroller) { e_preventDefault(e); } |
| 7301 |
} else if (button == 2) { |
| 7302 |
if (pos) { extendSelection(cm.doc, pos); } |
| 7303 |
setTimeout(function () { return display.input.focus(); }, 20); |
| 7304 |
} else if (button == 3) { |
| 7305 |
if (captureRightClick) { cm.display.input.onContextMenu(e); } |
| 7306 |
else { delayBlurEvent(cm); } |
| 7307 |
} |
| 7308 |
} |
| 7309 |
|
| 7310 |
function handleMappedButton(cm, button, pos, repeat, event) { |
| 7311 |
var name = "Click"; |
| 7312 |
if (repeat == "double") { name = "Double" + name; } |
| 7313 |
else if (repeat == "triple") { name = "Triple" + name; } |
| 7314 |
name = (button == 1 ? "Left" : button == 2 ? "Middle" : "Right") + name; |
| 7315 |
|
| 7316 |
return dispatchKey(cm, addModifierNames(name, event), event, function (bound) { |
| 7317 |
if (typeof bound == "string") { bound = commands[bound]; } |
| 7318 |
if (!bound) { return false } |
| 7319 |
var done = false; |
| 7320 |
try { |
| 7321 |
if (cm.isReadOnly()) { cm.state.suppressEdits = true; } |
| 7322 |
done = bound(cm, pos) != Pass; |
| 7323 |
} finally { |
| 7324 |
cm.state.suppressEdits = false; |
| 7325 |
} |
| 7326 |
return done |
| 7327 |
}) |
| 7328 |
} |
| 7329 |
|
| 7330 |
function configureMouse(cm, repeat, event) { |
| 7331 |
var option = cm.getOption("configureMouse"); |
| 7332 |
var value = option ? option(cm, repeat, event) : {}; |
| 7333 |
if (value.unit == null) { |
| 7334 |
var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey; |
| 7335 |
value.unit = rect ? "rectangle" : repeat == "single" ? "char" : repeat == "double" ? "word" : "line"; |
| 7336 |
} |
| 7337 |
if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey; } |
| 7338 |
if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey; } |
| 7339 |
if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey); } |
| 7340 |
return value |
| 7341 |
} |
| 7342 |
|
| 7343 |
function leftButtonDown(cm, pos, repeat, event) { |
| 7344 |
if (ie) { setTimeout(bind(ensureFocus, cm), 0); } |
| 7345 |
else { cm.curOp.focus = activeElt(); } |
| 7346 |
|
| 7347 |
var behavior = configureMouse(cm, repeat, event); |
| 7348 |
|
| 7349 |
var sel = cm.doc.sel, contained; |
| 7350 |
if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() && |
| 7351 |
repeat == "single" && (contained = sel.contains(pos)) > -1 && |
| 7352 |
(cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) && |
| 7353 |
(cmp(contained.to(), pos) > 0 || pos.xRel < 0)) |
| 7354 |
{ leftButtonStartDrag(cm, event, pos, behavior); } |
| 7355 |
else |
| 7356 |
{ leftButtonSelect(cm, event, pos, behavior); } |
| 7357 |
} |
| 7358 |
|
| 7359 |
// Start a text drag. When it ends, see if any dragging actually |
| 7360 |
// happen, and treat as a click if it didn't. |
| 7361 |
function leftButtonStartDrag(cm, event, pos, behavior) { |
| 7362 |
var display = cm.display, moved = false; |
| 7363 |
var dragEnd = operation(cm, function (e) { |
| 7364 |
if (webkit) { display.scroller.draggable = false; } |
| 7365 |
cm.state.draggingText = false; |
| 7366 |
off(display.wrapper.ownerDocument, "mouseup", dragEnd); |
| 7367 |
off(display.wrapper.ownerDocument, "mousemove", mouseMove); |
| 7368 |
off(display.scroller, "dragstart", dragStart); |
| 7369 |
off(display.scroller, "drop", dragEnd); |
| 7370 |
if (!moved) { |
| 7371 |
e_preventDefault(e); |
| 7372 |
if (!behavior.addNew) |
| 7373 |
{ extendSelection(cm.doc, pos, null, null, behavior.extend); } |
| 7374 |
// Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081) |
| 7375 |
if (webkit || ie && ie_version == 9) |
| 7376 |
{ setTimeout(function () {display.wrapper.ownerDocument.body.focus(); display.input.focus();}, 20); } |
| 7377 |
else |
| 7378 |
{ display.input.focus(); } |
| 7379 |
} |
| 7380 |
}); |
| 7381 |
var mouseMove = function(e2) { |
| 7382 |
moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10; |
| 7383 |
}; |
| 7384 |
var dragStart = function () { return moved = true; }; |
| 7385 |
// Let the drag handler handle this. |
| 7386 |
if (webkit) { display.scroller.draggable = true; } |
| 7387 |
cm.state.draggingText = dragEnd; |
| 7388 |
dragEnd.copy = !behavior.moveOnDrag; |
| 7389 |
// IE's approach to draggable |
| 7390 |
if (display.scroller.dragDrop) { display.scroller.dragDrop(); } |
| 7391 |
on(display.wrapper.ownerDocument, "mouseup", dragEnd); |
| 7392 |
on(display.wrapper.ownerDocument, "mousemove", mouseMove); |
| 7393 |
on(display.scroller, "dragstart", dragStart); |
| 7394 |
on(display.scroller, "drop", dragEnd); |
| 7395 |
|
| 7396 |
delayBlurEvent(cm); |
| 7397 |
setTimeout(function () { return display.input.focus(); }, 20); |
| 7398 |
} |
| 7399 |
|
| 7400 |
function rangeForUnit(cm, pos, unit) { |
| 7401 |
if (unit == "char") { return new Range(pos, pos) } |
| 7402 |
if (unit == "word") { return cm.findWordAt(pos) } |
| 7403 |
if (unit == "line") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) } |
| 7404 |
var result = unit(cm, pos); |
| 7405 |
return new Range(result.from, result.to) |
| 7406 |
} |
| 7407 |
|
| 7408 |
// Normal selection, as opposed to text dragging. |
| 7409 |
function leftButtonSelect(cm, event, start, behavior) { |
| 7410 |
var display = cm.display, doc = cm.doc; |
| 7411 |
e_preventDefault(event); |
| 7412 |
|
| 7413 |
var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges; |
| 7414 |
if (behavior.addNew && !behavior.extend) { |
| 7415 |
ourIndex = doc.sel.contains(start); |
| 7416 |
if (ourIndex > -1) |
| 7417 |
{ ourRange = ranges[ourIndex]; } |
| 7418 |
else |
| 7419 |
{ ourRange = new Range(start, start); } |
| 7420 |
} else { |
| 7421 |
ourRange = doc.sel.primary(); |
| 7422 |
ourIndex = doc.sel.primIndex; |
| 7423 |
} |
| 7424 |
|
| 7425 |
if (behavior.unit == "rectangle") { |
| 7426 |
if (!behavior.addNew) { ourRange = new Range(start, start); } |
| 7427 |
start = posFromMouse(cm, event, true, true); |
| 7428 |
ourIndex = -1; |
| 7429 |
} else { |
| 7430 |
var range$$1 = rangeForUnit(cm, start, behavior.unit); |
| 7431 |
if (behavior.extend) |
| 7432 |
{ ourRange = extendRange(ourRange, range$$1.anchor, range$$1.head, behavior.extend); } |
| 7433 |
else |
| 7434 |
{ ourRange = range$$1; } |
| 7435 |
} |
| 7436 |
|
| 7437 |
if (!behavior.addNew) { |
| 7438 |
ourIndex = 0; |
| 7439 |
setSelection(doc, new Selection([ourRange], 0), sel_mouse); |
| 7440 |
startSel = doc.sel; |
| 7441 |
} else if (ourIndex == -1) { |
| 7442 |
ourIndex = ranges.length; |
| 7443 |
setSelection(doc, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex), |
| 7444 |
{scroll: false, origin: "*mouse"}); |
| 7445 |
} else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == "char" && !behavior.extend) { |
| 7446 |
setSelection(doc, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0), |
| 7447 |
{scroll: false, origin: "*mouse"}); |
| 7448 |
startSel = doc.sel; |
| 7449 |
} else { |
| 7450 |
replaceOneSelection(doc, ourIndex, ourRange, sel_mouse); |
| 7451 |
} |
| 7452 |
|
| 7453 |
var lastPos = start; |
| 7454 |
function extendTo(pos) { |
| 7455 |
if (cmp(lastPos, pos) == 0) { return } |
| 7456 |
lastPos = pos; |
| 7457 |
|
| 7458 |
if (behavior.unit == "rectangle") { |
| 7459 |
var ranges = [], tabSize = cm.options.tabSize; |
| 7460 |
var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize); |
| 7461 |
var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize); |
| 7462 |
var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol); |
| 7463 |
for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line)); |
| 7464 |
line <= end; line++) { |
| 7465 |
var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize); |
| 7466 |
if (left == right) |
| 7467 |
{ ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); } |
| 7468 |
else if (text.length > leftPos) |
| 7469 |
{ ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); } |
| 7470 |
} |
| 7471 |
if (!ranges.length) { ranges.push(new Range(start, start)); } |
| 7472 |
setSelection(doc, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex), |
| 7473 |
{origin: "*mouse", scroll: false}); |
| 7474 |
cm.scrollIntoView(pos); |
| 7475 |
} else { |
| 7476 |
var oldRange = ourRange; |
| 7477 |
var range$$1 = rangeForUnit(cm, pos, behavior.unit); |
| 7478 |
var anchor = oldRange.anchor, head; |
| 7479 |
if (cmp(range$$1.anchor, anchor) > 0) { |
| 7480 |
head = range$$1.head; |
| 7481 |
anchor = minPos(oldRange.from(), range$$1.anchor); |
| 7482 |
} else { |
| 7483 |
head = range$$1.anchor; |
| 7484 |
anchor = maxPos(oldRange.to(), range$$1.head); |
| 7485 |
} |
| 7486 |
var ranges$1 = startSel.ranges.slice(0); |
| 7487 |
ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head)); |
| 7488 |
setSelection(doc, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse); |
| 7489 |
} |
| 7490 |
} |
| 7491 |
|
| 7492 |
var editorSize = display.wrapper.getBoundingClientRect(); |
| 7493 |
// Used to ensure timeout re-tries don't fire when another extend |
| 7494 |
// happened in the meantime (clearTimeout isn't reliable -- at |
| 7495 |
// least on Chrome, the timeouts still happen even when cleared, |
| 7496 |
// if the clear happens after their scheduled firing time). |
| 7497 |
var counter = 0; |
| 7498 |
|
| 7499 |
function extend(e) { |
| 7500 |
var curCount = ++counter; |
| 7501 |
var cur = posFromMouse(cm, e, true, behavior.unit == "rectangle"); |
| 7502 |
if (!cur) { return } |
| 7503 |
if (cmp(cur, lastPos) != 0) { |
| 7504 |
cm.curOp.focus = activeElt(); |
| 7505 |
extendTo(cur); |
| 7506 |
var visible = visibleLines(display, doc); |
| 7507 |
if (cur.line >= visible.to || cur.line < visible.from) |
| 7508 |
{ setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); } |
| 7509 |
} else { |
| 7510 |
var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0; |
| 7511 |
if (outside) { setTimeout(operation(cm, function () { |
| 7512 |
if (counter != curCount) { return } |
| 7513 |
display.scroller.scrollTop += outside; |
| 7514 |
extend(e); |
| 7515 |
}), 50); } |
| 7516 |
} |
| 7517 |
} |
| 7518 |
|
| 7519 |
function done(e) { |
| 7520 |
cm.state.selectingText = false; |
| 7521 |
counter = Infinity; |
| 7522 |
e_preventDefault(e); |
| 7523 |
display.input.focus(); |
| 7524 |
off(display.wrapper.ownerDocument, "mousemove", move); |
| 7525 |
off(display.wrapper.ownerDocument, "mouseup", up); |
| 7526 |
doc.history.lastSelOrigin = null; |
| 7527 |
} |
| 7528 |
|
| 7529 |
var move = operation(cm, function (e) { |
| 7530 |
if (e.buttons === 0 || !e_button(e)) { done(e); } |
| 7531 |
else { extend(e); } |
| 7532 |
}); |
| 7533 |
var up = operation(cm, done); |
| 7534 |
cm.state.selectingText = up; |
| 7535 |
on(display.wrapper.ownerDocument, "mousemove", move); |
| 7536 |
on(display.wrapper.ownerDocument, "mouseup", up); |
| 7537 |
} |
| 7538 |
|
| 7539 |
// Used when mouse-selecting to adjust the anchor to the proper side |
| 7540 |
// of a bidi jump depending on the visual position of the head. |
| 7541 |
function bidiSimplify(cm, range$$1) { |
| 7542 |
var anchor = range$$1.anchor; |
| 7543 |
var head = range$$1.head; |
| 7544 |
var anchorLine = getLine(cm.doc, anchor.line); |
| 7545 |
if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range$$1 } |
| 7546 |
var order = getOrder(anchorLine); |
| 7547 |
if (!order) { return range$$1 } |
| 7548 |
var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index]; |
| 7549 |
if (part.from != anchor.ch && part.to != anchor.ch) { return range$$1 } |
| 7550 |
var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1); |
| 7551 |
if (boundary == 0 || boundary == order.length) { return range$$1 } |
| 7552 |
|
| 7553 |
// Compute the relative visual position of the head compared to the |
| 7554 |
// anchor (<0 is to the left, >0 to the right) |
| 7555 |
var leftSide; |
| 7556 |
if (head.line != anchor.line) { |
| 7557 |
leftSide = (head.line - anchor.line) * (cm.doc.direction == "ltr" ? 1 : -1) > 0; |
| 7558 |
} else { |
| 7559 |
var headIndex = getBidiPartAt(order, head.ch, head.sticky); |
| 7560 |
var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1); |
| 7561 |
if (headIndex == boundary - 1 || headIndex == boundary) |
| 7562 |
{ leftSide = dir < 0; } |
| 7563 |
else |
| 7564 |
{ leftSide = dir > 0; } |
| 7565 |
} |
| 7566 |
|
| 7567 |
var usePart = order[boundary + (leftSide ? -1 : 0)]; |
| 7568 |
var from = leftSide == (usePart.level == 1); |
| 7569 |
var ch = from ? usePart.from : usePart.to, sticky = from ? "after" : "before"; |
| 7570 |
return anchor.ch == ch && anchor.sticky == sticky ? range$$1 : new Range(new Pos(anchor.line, ch, sticky), head) |
| 7571 |
} |
| 7572 |
|
| 7573 |
|
| 7574 |
// Determines whether an event happened in the gutter, and fires the |
| 7575 |
// handlers for the corresponding event. |
| 7576 |
function gutterEvent(cm, e, type, prevent) { |
| 7577 |
var mX, mY; |
| 7578 |
if (e.touches) { |
| 7579 |
mX = e.touches[0].clientX; |
| 7580 |
mY = e.touches[0].clientY; |
| 7581 |
} else { |
| 7582 |
try { mX = e.clientX; mY = e.clientY; } |
| 7583 |
catch(e) { return false } |
| 7584 |
} |
| 7585 |
if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false } |
| 7586 |
if (prevent) { e_preventDefault(e); } |
| 7587 |
|
| 7588 |
var display = cm.display; |
| 7589 |
var lineBox = display.lineDiv.getBoundingClientRect(); |
| 7590 |
|
| 7591 |
if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) } |
| 7592 |
mY -= lineBox.top - display.viewOffset; |
| 7593 |
|
| 7594 |
for (var i = 0; i < cm.options.gutters.length; ++i) { |
| 7595 |
var g = display.gutters.childNodes[i]; |
| 7596 |
if (g && g.getBoundingClientRect().right >= mX) { |
| 7597 |
var line = lineAtHeight(cm.doc, mY); |
| 7598 |
var gutter = cm.options.gutters[i]; |
| 7599 |
signal(cm, type, cm, line, gutter, e); |
| 7600 |
return e_defaultPrevented(e) |
| 7601 |
} |
| 7602 |
} |
| 7603 |
} |
| 7604 |
|
| 7605 |
function clickInGutter(cm, e) { |
| 7606 |
return gutterEvent(cm, e, "gutterClick", true) |
| 7607 |
} |
| 7608 |
|
| 7609 |
// CONTEXT MENU HANDLING |
| 7610 |
|
| 7611 |
// To make the context menu work, we need to briefly unhide the |
| 7612 |
// textarea (making it as unobtrusive as possible) to let the |
| 7613 |
// right-click take effect on it. |
| 7614 |
function onContextMenu(cm, e) { |
| 7615 |
if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return } |
| 7616 |
if (signalDOMEvent(cm, e, "contextmenu")) { return } |
| 7617 |
if (!captureRightClick) { cm.display.input.onContextMenu(e); } |
| 7618 |
} |
| 7619 |
|
| 7620 |
function contextMenuInGutter(cm, e) { |
| 7621 |
if (!hasHandler(cm, "gutterContextMenu")) { return false } |
| 7622 |
return gutterEvent(cm, e, "gutterContextMenu", false) |
| 7623 |
} |
| 7624 |
|
| 7625 |
function themeChanged(cm) { |
| 7626 |
cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") + |
| 7627 |
cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-"); |
| 7628 |
clearCaches(cm); |
| 7629 |
} |
| 7630 |
|
| 7631 |
var Init = {toString: function(){return "CodeMirror.Init"}}; |
| 7632 |
|
| 7633 |
var defaults = {}; |
| 7634 |
var optionHandlers = {}; |
| 7635 |
|
| 7636 |
function defineOptions(CodeMirror) { |
| 7637 |
var optionHandlers = CodeMirror.optionHandlers; |
| 7638 |
|
| 7639 |
function option(name, deflt, handle, notOnInit) { |
| 7640 |
CodeMirror.defaults[name] = deflt; |
| 7641 |
if (handle) { optionHandlers[name] = |
| 7642 |
notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; } |
| 7643 |
} |
| 7644 |
|
| 7645 |
CodeMirror.defineOption = option; |
| 7646 |
|
| 7647 |
// Passed to option handlers when there is no old value. |
| 7648 |
CodeMirror.Init = Init; |
| 7649 |
|
| 7650 |
// These two are, on init, called from the constructor because they |
| 7651 |
// have to be initialized before the editor can start at all. |
| 7652 |
option("value", "", function (cm, val) { return cm.setValue(val); }, true); |
| 7653 |
option("mode", null, function (cm, val) { |
| 7654 |
cm.doc.modeOption = val; |
| 7655 |
loadMode(cm); |
| 7656 |
}, true); |
| 7657 |
|
| 7658 |
option("indentUnit", 2, loadMode, true); |
| 7659 |
option("indentWithTabs", false); |
| 7660 |
option("smartIndent", true); |
| 7661 |
option("tabSize", 4, function (cm) { |
| 7662 |
resetModeState(cm); |
| 7663 |
clearCaches(cm); |
| 7664 |
regChange(cm); |
| 7665 |
}, true); |
| 7666 |
|
| 7667 |
option("lineSeparator", null, function (cm, val) { |
| 7668 |
cm.doc.lineSep = val; |
| 7669 |
if (!val) { return } |
| 7670 |
var newBreaks = [], lineNo = cm.doc.first; |
| 7671 |
cm.doc.iter(function (line) { |
| 7672 |
for (var pos = 0;;) { |
| 7673 |
var found = line.text.indexOf(val, pos); |
| 7674 |
if (found == -1) { break } |
| 7675 |
pos = found + val.length; |
| 7676 |
newBreaks.push(Pos(lineNo, found)); |
| 7677 |
} |
| 7678 |
lineNo++; |
| 7679 |
}); |
| 7680 |
for (var i = newBreaks.length - 1; i >= 0; i--) |
| 7681 |
{ replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); } |
| 7682 |
}); |
| 7683 |
option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b-\u200f\u2028\u2029\ufeff]/g, function (cm, val, old) { |
| 7684 |
cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g"); |
| 7685 |
if (old != Init) { cm.refresh(); } |
| 7686 |
}); |
| 7687 |
option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true); |
| 7688 |
option("electricChars", true); |
| 7689 |
option("inputStyle", mobile ? "contenteditable" : "textarea", function () { |
| 7690 |
throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME |
| 7691 |
}, true); |
| 7692 |
option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true); |
| 7693 |
option("rtlMoveVisually", !windows); |
| 7694 |
option("wholeLineUpdateBefore", true); |
| 7695 |
|
| 7696 |
option("theme", "default", function (cm) { |
| 7697 |
themeChanged(cm); |
| 7698 |
guttersChanged(cm); |
| 7699 |
}, true); |
| 7700 |
option("keyMap", "default", function (cm, val, old) { |
| 7701 |
var next = getKeyMap(val); |
| 7702 |
var prev = old != Init && getKeyMap(old); |
| 7703 |
if (prev && prev.detach) { prev.detach(cm, next); } |
| 7704 |
if (next.attach) { next.attach(cm, prev || null); } |
| 7705 |
}); |
| 7706 |
option("extraKeys", null); |
| 7707 |
option("configureMouse", null); |
| 7708 |
|
| 7709 |
option("lineWrapping", false, wrappingChanged, true); |
| 7710 |
option("gutters", [], function (cm) { |
| 7711 |
setGuttersForLineNumbers(cm.options); |
| 7712 |
guttersChanged(cm); |
| 7713 |
}, true); |
| 7714 |
option("fixedGutter", true, function (cm, val) { |
| 7715 |
cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"; |
| 7716 |
cm.refresh(); |
| 7717 |
}, true); |
| 7718 |
option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true); |
| 7719 |
option("scrollbarStyle", "native", function (cm) { |
| 7720 |
initScrollbars(cm); |
| 7721 |
updateScrollbars(cm); |
| 7722 |
cm.display.scrollbars.setScrollTop(cm.doc.scrollTop); |
| 7723 |
cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft); |
| 7724 |
}, true); |
| 7725 |
option("lineNumbers", false, function (cm) { |
| 7726 |
setGuttersForLineNumbers(cm.options); |
| 7727 |
guttersChanged(cm); |
| 7728 |
}, true); |
| 7729 |
option("firstLineNumber", 1, guttersChanged, true); |
| 7730 |
option("lineNumberFormatter", function (integer) { return integer; }, guttersChanged, true); |
| 7731 |
option("showCursorWhenSelecting", false, updateSelection, true); |
| 7732 |
|
| 7733 |
option("resetSelectionOnContextMenu", true); |
| 7734 |
option("lineWiseCopyCut", true); |
| 7735 |
option("pasteLinesPerSelection", true); |
| 7736 |
option("selectionsMayTouch", false); |
| 7737 |
|
| 7738 |
option("readOnly", false, function (cm, val) { |
| 7739 |
if (val == "nocursor") { |
| 7740 |
onBlur(cm); |
| 7741 |
cm.display.input.blur(); |
| 7742 |
} |
| 7743 |
cm.display.input.readOnlyChanged(val); |
| 7744 |
}); |
| 7745 |
option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true); |
| 7746 |
option("dragDrop", true, dragDropChanged); |
| 7747 |
option("allowDropFileTypes", null); |
| 7748 |
|
| 7749 |
option("cursorBlinkRate", 530); |
| 7750 |
option("cursorScrollMargin", 0); |
| 7751 |
option("cursorHeight", 1, updateSelection, true); |
| 7752 |
option("singleCursorHeightPerLine", true, updateSelection, true); |
| 7753 |
option("workTime", 100); |
| 7754 |
option("workDelay", 100); |
| 7755 |
option("flattenSpans", true, resetModeState, true); |
| 7756 |
option("addModeClass", false, resetModeState, true); |
| 7757 |
option("pollInterval", 100); |
| 7758 |
option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; }); |
| 7759 |
option("historyEventDelay", 1250); |
| 7760 |
option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true); |
| 7761 |
option("maxHighlightLength", 10000, resetModeState, true); |
| 7762 |
option("moveInputWithCursor", true, function (cm, val) { |
| 7763 |
if (!val) { cm.display.input.resetPosition(); } |
| 7764 |
}); |
| 7765 |
|
| 7766 |
option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; }); |
| 7767 |
option("autofocus", null); |
| 7768 |
option("direction", "ltr", function (cm, val) { return cm.doc.setDirection(val); }, true); |
| 7769 |
option("phrases", null); |
| 7770 |
} |
| 7771 |
|
| 7772 |
function guttersChanged(cm) { |
| 7773 |
updateGutters(cm); |
| 7774 |
regChange(cm); |
| 7775 |
alignHorizontally(cm); |
| 7776 |
} |
| 7777 |
|
| 7778 |
function dragDropChanged(cm, value, old) { |
| 7779 |
var wasOn = old && old != Init; |
| 7780 |
if (!value != !wasOn) { |
| 7781 |
var funcs = cm.display.dragFunctions; |
| 7782 |
var toggle = value ? on : off; |
| 7783 |
toggle(cm.display.scroller, "dragstart", funcs.start); |
| 7784 |
toggle(cm.display.scroller, "dragenter", funcs.enter); |
| 7785 |
toggle(cm.display.scroller, "dragover", funcs.over); |
| 7786 |
toggle(cm.display.scroller, "dragleave", funcs.leave); |
| 7787 |
toggle(cm.display.scroller, "drop", funcs.drop); |
| 7788 |
} |
| 7789 |
} |
| 7790 |
|
| 7791 |
function wrappingChanged(cm) { |
| 7792 |
if (cm.options.lineWrapping) { |
| 7793 |
addClass(cm.display.wrapper, "CodeMirror-wrap"); |
| 7794 |
cm.display.sizer.style.minWidth = ""; |
| 7795 |
cm.display.sizerWidth = null; |
| 7796 |
} else { |
| 7797 |
rmClass(cm.display.wrapper, "CodeMirror-wrap"); |
| 7798 |
findMaxLine(cm); |
| 7799 |
} |
| 7800 |
estimateLineHeights(cm); |
| 7801 |
regChange(cm); |
| 7802 |
clearCaches(cm); |
| 7803 |
setTimeout(function () { return updateScrollbars(cm); }, 100); |
| 7804 |
} |
| 7805 |
|
| 7806 |
// A CodeMirror instance represents an editor. This is the object |
| 7807 |
// that user code is usually dealing with. |
| 7808 |
|
| 7809 |
function CodeMirror(place, options) { |
| 7810 |
var this$1 = this; |
| 7811 |
|
| 7812 |
if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) } |
| 7813 |
|
| 7814 |
this.options = options = options ? copyObj(options) : {}; |
| 7815 |
// Determine effective options based on given values and defaults. |
| 7816 |
copyObj(defaults, options, false); |
| 7817 |
setGuttersForLineNumbers(options); |
| 7818 |
|
| 7819 |
var doc = options.value; |
| 7820 |
if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); } |
| 7821 |
else if (options.mode) { doc.modeOption = options.mode; } |
| 7822 |
this.doc = doc; |
| 7823 |
|
| 7824 |
var input = new CodeMirror.inputStyles[options.inputStyle](this); |
| 7825 |
var display = this.display = new Display(place, doc, input); |
| 7826 |
display.wrapper.CodeMirror = this; |
| 7827 |
updateGutters(this); |
| 7828 |
themeChanged(this); |
| 7829 |
if (options.lineWrapping) |
| 7830 |
{ this.display.wrapper.className += " CodeMirror-wrap"; } |
| 7831 |
initScrollbars(this); |
| 7832 |
|
| 7833 |
this.state = { |
| 7834 |
keyMaps: [], // stores maps added by addKeyMap |
| 7835 |
overlays: [], // highlighting overlays, as added by addOverlay |
| 7836 |
modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info |
| 7837 |
overwrite: false, |
| 7838 |
delayingBlurEvent: false, |
| 7839 |
focused: false, |
| 7840 |
suppressEdits: false, // used to disable editing during key handlers when in readOnly mode |
| 7841 |
pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll |
| 7842 |
selectingText: false, |
| 7843 |
draggingText: false, |
| 7844 |
highlight: new Delayed(), // stores highlight worker timeout |
| 7845 |
keySeq: null, // Unfinished key sequence |
| 7846 |
specialChars: null |
| 7847 |
}; |
| 7848 |
|
| 7849 |
if (options.autofocus && !mobile) { display.input.focus(); } |
| 7850 |
|
| 7851 |
// Override magic textarea content restore that IE sometimes does |
| 7852 |
// on our hidden textarea on reload |
| 7853 |
if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); } |
| 7854 |
|
| 7855 |
registerEventHandlers(this); |
| 7856 |
ensureGlobalHandlers(); |
| 7857 |
|
| 7858 |
startOperation(this); |
| 7859 |
this.curOp.forceUpdate = true; |
| 7860 |
attachDoc(this, doc); |
| 7861 |
|
| 7862 |
if ((options.autofocus && !mobile) || this.hasFocus()) |
| 7863 |
{ setTimeout(bind(onFocus, this), 20); } |
| 7864 |
else |
| 7865 |
{ onBlur(this); } |
| 7866 |
|
| 7867 |
for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt)) |
| 7868 |
{ optionHandlers[opt](this$1, options[opt], Init); } } |
| 7869 |
maybeUpdateLineNumberWidth(this); |
| 7870 |
if (options.finishInit) { options.finishInit(this); } |
| 7871 |
for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this$1); } |
| 7872 |
endOperation(this); |
| 7873 |
// Suppress optimizelegibility in Webkit, since it breaks text |
| 7874 |
// measuring on line wrapping boundaries. |
| 7875 |
if (webkit && options.lineWrapping && |
| 7876 |
getComputedStyle(display.lineDiv).textRendering == "optimizelegibility") |
| 7877 |
{ display.lineDiv.style.textRendering = "auto"; } |
| 7878 |
} |
| 7879 |
|
| 7880 |
// The default configuration options. |
| 7881 |
CodeMirror.defaults = defaults; |
| 7882 |
// Functions to run when options are changed. |
| 7883 |
CodeMirror.optionHandlers = optionHandlers; |
| 7884 |
|
| 7885 |
// Attach the necessary event handlers when initializing the editor |
| 7886 |
function registerEventHandlers(cm) { |
| 7887 |
var d = cm.display; |
| 7888 |
on(d.scroller, "mousedown", operation(cm, onMouseDown)); |
| 7889 |
// Older IE's will not fire a second mousedown for a double click |
| 7890 |
if (ie && ie_version < 11) |
| 7891 |
{ on(d.scroller, "dblclick", operation(cm, function (e) { |
| 7892 |
if (signalDOMEvent(cm, e)) { return } |
| 7893 |
var pos = posFromMouse(cm, e); |
| 7894 |
if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return } |
| 7895 |
e_preventDefault(e); |
| 7896 |
var word = cm.findWordAt(pos); |
| 7897 |
extendSelection(cm.doc, word.anchor, word.head); |
| 7898 |
})); } |
| 7899 |
else |
| 7900 |
{ on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); } |
| 7901 |
// Some browsers fire contextmenu *after* opening the menu, at |
| 7902 |
// which point we can't mess with it anymore. Context menu is |
| 7903 |
// handled in onMouseDown for these browsers. |
| 7904 |
on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); }); |
| 7905 |
|
| 7906 |
// Used to suppress mouse event handling when a touch happens |
| 7907 |
var touchFinished, prevTouch = {end: 0}; |
| 7908 |
function finishTouch() { |
| 7909 |
if (d.activeTouch) { |
| 7910 |
touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000); |
| 7911 |
prevTouch = d.activeTouch; |
| 7912 |
prevTouch.end = +new Date; |
| 7913 |
} |
| 7914 |
} |
| 7915 |
function isMouseLikeTouchEvent(e) { |
| 7916 |
if (e.touches.length != 1) { return false } |
| 7917 |
var touch = e.touches[0]; |
| 7918 |
return touch.radiusX <= 1 && touch.radiusY <= 1 |
| 7919 |
} |
| 7920 |
function farAway(touch, other) { |
| 7921 |
if (other.left == null) { return true } |
| 7922 |
var dx = other.left - touch.left, dy = other.top - touch.top; |
| 7923 |
return dx * dx + dy * dy > 20 * 20 |
| 7924 |
} |
| 7925 |
on(d.scroller, "touchstart", function (e) { |
| 7926 |
if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) { |
| 7927 |
d.input.ensurePolled(); |
| 7928 |
clearTimeout(touchFinished); |
| 7929 |
var now = +new Date; |
| 7930 |
d.activeTouch = {start: now, moved: false, |
| 7931 |
prev: now - prevTouch.end <= 300 ? prevTouch : null}; |
| 7932 |
if (e.touches.length == 1) { |
| 7933 |
d.activeTouch.left = e.touches[0].pageX; |
| 7934 |
d.activeTouch.top = e.touches[0].pageY; |
| 7935 |
} |
| 7936 |
} |
| 7937 |
}); |
| 7938 |
on(d.scroller, "touchmove", function () { |
| 7939 |
if (d.activeTouch) { d.activeTouch.moved = true; } |
| 7940 |
}); |
| 7941 |
on(d.scroller, "touchend", function (e) { |
| 7942 |
var touch = d.activeTouch; |
| 7943 |
if (touch && !eventInWidget(d, e) && touch.left != null && |
| 7944 |
!touch.moved && new Date - touch.start < 300) { |
| 7945 |
var pos = cm.coordsChar(d.activeTouch, "page"), range; |
| 7946 |
if (!touch.prev || farAway(touch, touch.prev)) // Single tap |
| 7947 |
{ range = new Range(pos, pos); } |
| 7948 |
else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap |
| 7949 |
{ range = cm.findWordAt(pos); } |
| 7950 |
else // Triple tap |
| 7951 |
{ range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); } |
| 7952 |
cm.setSelection(range.anchor, range.head); |
| 7953 |
cm.focus(); |
| 7954 |
e_preventDefault(e); |
| 7955 |
} |
| 7956 |
finishTouch(); |
| 7957 |
}); |
| 7958 |
on(d.scroller, "touchcancel", finishTouch); |
| 7959 |
|
| 7960 |
// Sync scrolling between fake scrollbars and real scrollable |
| 7961 |
// area, ensure viewport is updated when scrolling. |
| 7962 |
on(d.scroller, "scroll", function () { |
| 7963 |
if (d.scroller.clientHeight) { |
| 7964 |
updateScrollTop(cm, d.scroller.scrollTop); |
| 7965 |
setScrollLeft(cm, d.scroller.scrollLeft, true); |
| 7966 |
signal(cm, "scroll", cm); |
| 7967 |
} |
| 7968 |
}); |
| 7969 |
|
| 7970 |
// Listen to wheel events in order to try and update the viewport on time. |
| 7971 |
on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); }); |
| 7972 |
on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); }); |
| 7973 |
|
| 7974 |
// Prevent wrapper from ever scrolling |
| 7975 |
on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; }); |
| 7976 |
|
| 7977 |
d.dragFunctions = { |
| 7978 |
enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }}, |
| 7979 |
over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }}, |
| 7980 |
start: function (e) { return onDragStart(cm, e); }, |
| 7981 |
drop: operation(cm, onDrop), |
| 7982 |
leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }} |
| 7983 |
}; |
| 7984 |
|
| 7985 |
var inp = d.input.getField(); |
| 7986 |
on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); }); |
| 7987 |
on(inp, "keydown", operation(cm, onKeyDown)); |
| 7988 |
on(inp, "keypress", operation(cm, onKeyPress)); |
| 7989 |
on(inp, "focus", function (e) { return onFocus(cm, e); }); |
| 7990 |
on(inp, "blur", function (e) { return onBlur(cm, e); }); |
| 7991 |
} |
| 7992 |
|
| 7993 |
var initHooks = []; |
| 7994 |
CodeMirror.defineInitHook = function (f) { return initHooks.push(f); }; |
| 7995 |
|
| 7996 |
// Indent the given line. The how parameter can be "smart", |
| 7997 |
// "add"/null, "subtract", or "prev". When aggressive is false |
| 7998 |
// (typically set to true for forced single-line indents), empty |
| 7999 |
// lines are not indented, and places where the mode returns Pass |
| 8000 |
// are left alone. |
| 8001 |
function indentLine(cm, n, how, aggressive) { |
| 8002 |
var doc = cm.doc, state; |
| 8003 |
if (how == null) { how = "add"; } |
| 8004 |
if (how == "smart") { |
| 8005 |
// Fall back to "prev" when the mode doesn't have an indentation |
| 8006 |
// method. |
| 8007 |
if (!doc.mode.indent) { how = "prev"; } |
| 8008 |
else { state = getContextBefore(cm, n).state; } |
| 8009 |
} |
| 8010 |
|
| 8011 |
var tabSize = cm.options.tabSize; |
| 8012 |
var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize); |
| 8013 |
if (line.stateAfter) { line.stateAfter = null; } |
| 8014 |
var curSpaceString = line.text.match(/^\s*/)[0], indentation; |
| 8015 |
if (!aggressive && !/\S/.test(line.text)) { |
| 8016 |
indentation = 0; |
| 8017 |
how = "not"; |
| 8018 |
} else if (how == "smart") { |
| 8019 |
indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text); |
| 8020 |
if (indentation == Pass || indentation > 150) { |
| 8021 |
if (!aggressive) { return } |
| 8022 |
how = "prev"; |
| 8023 |
} |
| 8024 |
} |
| 8025 |
if (how == "prev") { |
| 8026 |
if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); } |
| 8027 |
else { indentation = 0; } |
| 8028 |
} else if (how == "add") { |
| 8029 |
indentation = curSpace + cm.options.indentUnit; |
| 8030 |
} else if (how == "subtract") { |
| 8031 |
indentation = curSpace - cm.options.indentUnit; |
| 8032 |
} else if (typeof how == "number") { |
| 8033 |
indentation = curSpace + how; |
| 8034 |
} |
| 8035 |
indentation = Math.max(0, indentation); |
| 8036 |
|
| 8037 |
var indentString = "", pos = 0; |
| 8038 |
if (cm.options.indentWithTabs) |
| 8039 |
{ for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} } |
| 8040 |
if (pos < indentation) { indentString += spaceStr(indentation - pos); } |
| 8041 |
|
| 8042 |
if (indentString != curSpaceString) { |
| 8043 |
replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input"); |
| 8044 |
line.stateAfter = null; |
| 8045 |
return true |
| 8046 |
} else { |
| 8047 |
// Ensure that, if the cursor was in the whitespace at the start |
| 8048 |
// of the line, it is moved to the end of that space. |
| 8049 |
for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) { |
| 8050 |
var range = doc.sel.ranges[i$1]; |
| 8051 |
if (range.head.line == n && range.head.ch < curSpaceString.length) { |
| 8052 |
var pos$1 = Pos(n, curSpaceString.length); |
| 8053 |
replaceOneSelection(doc, i$1, new Range(pos$1, pos$1)); |
| 8054 |
break |
| 8055 |
} |
| 8056 |
} |
| 8057 |
} |
| 8058 |
} |
| 8059 |
|
| 8060 |
// This will be set to a {lineWise: bool, text: [string]} object, so |
| 8061 |
// that, when pasting, we know what kind of selections the copied |
| 8062 |
// text was made out of. |
| 8063 |
var lastCopied = null; |
| 8064 |
|
| 8065 |
function setLastCopied(newLastCopied) { |
| 8066 |
lastCopied = newLastCopied; |
| 8067 |
} |
| 8068 |
|
| 8069 |
function applyTextInput(cm, inserted, deleted, sel, origin) { |
| 8070 |
var doc = cm.doc; |
| 8071 |
cm.display.shift = false; |
| 8072 |
if (!sel) { sel = doc.sel; } |
| 8073 |
|
| 8074 |
var paste = cm.state.pasteIncoming || origin == "paste"; |
| 8075 |
var textLines = splitLinesAuto(inserted), multiPaste = null; |
| 8076 |
// When pasting N lines into N selections, insert one line per selection |
| 8077 |
if (paste && sel.ranges.length > 1) { |
| 8078 |
if (lastCopied && lastCopied.text.join("\n") == inserted) { |
| 8079 |
if (sel.ranges.length % lastCopied.text.length == 0) { |
| 8080 |
multiPaste = []; |
| 8081 |
for (var i = 0; i < lastCopied.text.length; i++) |
| 8082 |
{ multiPaste.push(doc.splitLines(lastCopied.text[i])); } |
| 8083 |
} |
| 8084 |
} else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) { |
| 8085 |
multiPaste = map(textLines, function (l) { return [l]; }); |
| 8086 |
} |
| 8087 |
} |
| 8088 |
|
| 8089 |
var updateInput = cm.curOp.updateInput; |
| 8090 |
// Normal behavior is to insert the new text into every selection |
| 8091 |
for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) { |
| 8092 |
var range$$1 = sel.ranges[i$1]; |
| 8093 |
var from = range$$1.from(), to = range$$1.to(); |
| 8094 |
if (range$$1.empty()) { |
| 8095 |
if (deleted && deleted > 0) // Handle deletion |
| 8096 |
{ from = Pos(from.line, from.ch - deleted); } |
| 8097 |
else if (cm.state.overwrite && !paste) // Handle overwrite |
| 8098 |
{ to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); } |
| 8099 |
else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted) |
| 8100 |
{ from = to = Pos(from.line, 0); } |
| 8101 |
} |
| 8102 |
var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines, |
| 8103 |
origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input")}; |
| 8104 |
makeChange(cm.doc, changeEvent); |
| 8105 |
signalLater(cm, "inputRead", cm, changeEvent); |
| 8106 |
} |
| 8107 |
if (inserted && !paste) |
| 8108 |
{ triggerElectric(cm, inserted); } |
| 8109 |
|
| 8110 |
ensureCursorVisible(cm); |
| 8111 |
if (cm.curOp.updateInput < 2) { cm.curOp.updateInput = updateInput; } |
| 8112 |
cm.curOp.typing = true; |
| 8113 |
cm.state.pasteIncoming = cm.state.cutIncoming = false; |
| 8114 |
} |
| 8115 |
|
| 8116 |
function handlePaste(e, cm) { |
| 8117 |
var pasted = e.clipboardData && e.clipboardData.getData("Text"); |
| 8118 |
if (pasted) { |
| 8119 |
e.preventDefault(); |
| 8120 |
if (!cm.isReadOnly() && !cm.options.disableInput) |
| 8121 |
{ runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }); } |
| 8122 |
return true |
| 8123 |
} |
| 8124 |
} |
| 8125 |
|
| 8126 |
function triggerElectric(cm, inserted) { |
| 8127 |
// When an 'electric' character is inserted, immediately trigger a reindent |
| 8128 |
if (!cm.options.electricChars || !cm.options.smartIndent) { return } |
| 8129 |
var sel = cm.doc.sel; |
| 8130 |
|
| 8131 |
for (var i = sel.ranges.length - 1; i >= 0; i--) { |
| 8132 |
var range$$1 = sel.ranges[i]; |
| 8133 |
if (range$$1.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range$$1.head.line)) { continue } |
| 8134 |
var mode = cm.getModeAt(range$$1.head); |
| 8135 |
var indented = false; |
| 8136 |
if (mode.electricChars) { |
| 8137 |
for (var j = 0; j < mode.electricChars.length; j++) |
| 8138 |
{ if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) { |
| 8139 |
indented = indentLine(cm, range$$1.head.line, "smart"); |
| 8140 |
break |
| 8141 |
} } |
| 8142 |
} else if (mode.electricInput) { |
| 8143 |
if (mode.electricInput.test(getLine(cm.doc, range$$1.head.line).text.slice(0, range$$1.head.ch))) |
| 8144 |
{ indented = indentLine(cm, range$$1.head.line, "smart"); } |
| 8145 |
} |
| 8146 |
if (indented) { signalLater(cm, "electricInput", cm, range$$1.head.line); } |
| 8147 |
} |
| 8148 |
} |
| 8149 |
|
| 8150 |
function copyableRanges(cm) { |
| 8151 |
var text = [], ranges = []; |
| 8152 |
for (var i = 0; i < cm.doc.sel.ranges.length; i++) { |
| 8153 |
var line = cm.doc.sel.ranges[i].head.line; |
| 8154 |
var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)}; |
| 8155 |
ranges.push(lineRange); |
| 8156 |
text.push(cm.getRange(lineRange.anchor, lineRange.head)); |
| 8157 |
} |
| 8158 |
return {text: text, ranges: ranges} |
| 8159 |
} |
| 8160 |
|
| 8161 |
function disableBrowserMagic(field, spellcheck) { |
| 8162 |
field.setAttribute("autocorrect", "off"); |
| 8163 |
field.setAttribute("autocapitalize", "off"); |
| 8164 |
field.setAttribute("spellcheck", !!spellcheck); |
| 8165 |
} |
| 8166 |
|
| 8167 |
function hiddenTextarea() { |
| 8168 |
var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none"); |
| 8169 |
var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;"); |
| 8170 |
// The textarea is kept positioned near the cursor to prevent the |
| 8171 |
// fact that it'll be scrolled into view on input from scrolling |
| 8172 |
// our fake cursor out of view. On webkit, when wrap=off, paste is |
| 8173 |
// very slow. So make the area wide instead. |
| 8174 |
if (webkit) { te.style.width = "1000px"; } |
| 8175 |
else { te.setAttribute("wrap", "off"); } |
| 8176 |
// If border: 0; -- iOS fails to open keyboard (issue #1287) |
| 8177 |
if (ios) { te.style.border = "1px solid black"; } |
| 8178 |
disableBrowserMagic(te); |
| 8179 |
return div |
| 8180 |
} |
| 8181 |
|
| 8182 |
// The publicly visible API. Note that methodOp(f) means |
| 8183 |
// 'wrap f in an operation, performed on its `this` parameter'. |
| 8184 |
|
| 8185 |
// This is not the complete set of editor methods. Most of the |
| 8186 |
// methods defined on the Doc type are also injected into |
| 8187 |
// CodeMirror.prototype, for backwards compatibility and |
| 8188 |
// convenience. |
| 8189 |
|
| 8190 |
function addEditorMethods(CodeMirror) { |
| 8191 |
var optionHandlers = CodeMirror.optionHandlers; |
| 8192 |
|
| 8193 |
var helpers = CodeMirror.helpers = {}; |
| 8194 |
|
| 8195 |
CodeMirror.prototype = { |
| 8196 |
constructor: CodeMirror, |
| 8197 |
focus: function(){window.focus(); this.display.input.focus();}, |
| 8198 |
|
| 8199 |
setOption: function(option, value) { |
| 8200 |
var options = this.options, old = options[option]; |
| 8201 |
if (options[option] == value && option != "mode") { return } |
| 8202 |
options[option] = value; |
| 8203 |
if (optionHandlers.hasOwnProperty(option)) |
| 8204 |
{ operation(this, optionHandlers[option])(this, value, old); } |
| 8205 |
signal(this, "optionChange", this, option); |
| 8206 |
}, |
| 8207 |
|
| 8208 |
getOption: function(option) {return this.options[option]}, |
| 8209 |
getDoc: function() {return this.doc}, |
| 8210 |
|
| 8211 |
addKeyMap: function(map$$1, bottom) { |
| 8212 |
this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map$$1)); |
| 8213 |
}, |
| 8214 |
removeKeyMap: function(map$$1) { |
| 8215 |
var maps = this.state.keyMaps; |
| 8216 |
for (var i = 0; i < maps.length; ++i) |
| 8217 |
{ if (maps[i] == map$$1 || maps[i].name == map$$1) { |
| 8218 |
maps.splice(i, 1); |
| 8219 |
return true |
| 8220 |
} } |
| 8221 |
}, |
| 8222 |
|
| 8223 |
addOverlay: methodOp(function(spec, options) { |
| 8224 |
var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec); |
| 8225 |
if (mode.startState) { throw new Error("Overlays may not be stateful.") } |
| 8226 |
insertSorted(this.state.overlays, |
| 8227 |
{mode: mode, modeSpec: spec, opaque: options && options.opaque, |
| 8228 |
priority: (options && options.priority) || 0}, |
| 8229 |
function (overlay) { return overlay.priority; }); |
| 8230 |
this.state.modeGen++; |
| 8231 |
regChange(this); |
| 8232 |
}), |
| 8233 |
removeOverlay: methodOp(function(spec) { |
| 8234 |
var this$1 = this; |
| 8235 |
|
| 8236 |
var overlays = this.state.overlays; |
| 8237 |
for (var i = 0; i < overlays.length; ++i) { |
| 8238 |
var cur = overlays[i].modeSpec; |
| 8239 |
if (cur == spec || typeof spec == "string" && cur.name == spec) { |
| 8240 |
overlays.splice(i, 1); |
| 8241 |
this$1.state.modeGen++; |
| 8242 |
regChange(this$1); |
| 8243 |
return |
| 8244 |
} |
| 8245 |
} |
| 8246 |
}), |
| 8247 |
|
| 8248 |
indentLine: methodOp(function(n, dir, aggressive) { |
| 8249 |
if (typeof dir != "string" && typeof dir != "number") { |
| 8250 |
if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev"; } |
| 8251 |
else { dir = dir ? "add" : "subtract"; } |
| 8252 |
} |
| 8253 |
if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); } |
| 8254 |
}), |
| 8255 |
indentSelection: methodOp(function(how) { |
| 8256 |
var this$1 = this; |
| 8257 |
|
| 8258 |
var ranges = this.doc.sel.ranges, end = -1; |
| 8259 |
for (var i = 0; i < ranges.length; i++) { |
| 8260 |
var range$$1 = ranges[i]; |
| 8261 |
if (!range$$1.empty()) { |
| 8262 |
var from = range$$1.from(), to = range$$1.to(); |
| 8263 |
var start = Math.max(end, from.line); |
| 8264 |
end = Math.min(this$1.lastLine(), to.line - (to.ch ? 0 : 1)) + 1; |
| 8265 |
for (var j = start; j < end; ++j) |
| 8266 |
{ indentLine(this$1, j, how); } |
| 8267 |
var newRanges = this$1.doc.sel.ranges; |
| 8268 |
if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0) |
| 8269 |
{ replaceOneSelection(this$1.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); } |
| 8270 |
} else if (range$$1.head.line > end) { |
| 8271 |
indentLine(this$1, range$$1.head.line, how, true); |
| 8272 |
end = range$$1.head.line; |
| 8273 |
if (i == this$1.doc.sel.primIndex) { ensureCursorVisible(this$1); } |
| 8274 |
} |
| 8275 |
} |
| 8276 |
}), |
| 8277 |
|
| 8278 |
// Fetch the parser token for a given character. Useful for hacks |
| 8279 |
// that want to inspect the mode state (say, for completion). |
| 8280 |
getTokenAt: function(pos, precise) { |
| 8281 |
return takeToken(this, pos, precise) |
| 8282 |
}, |
| 8283 |
|
| 8284 |
getLineTokens: function(line, precise) { |
| 8285 |
return takeToken(this, Pos(line), precise, true) |
| 8286 |
}, |
| 8287 |
|
| 8288 |
getTokenTypeAt: function(pos) { |
| 8289 |
pos = clipPos(this.doc, pos); |
| 8290 |
var styles = getLineStyles(this, getLine(this.doc, pos.line)); |
| 8291 |
var before = 0, after = (styles.length - 1) / 2, ch = pos.ch; |
| 8292 |
var type; |
| 8293 |
if (ch == 0) { type = styles[2]; } |
| 8294 |
else { for (;;) { |
| 8295 |
var mid = (before + after) >> 1; |
| 8296 |
if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; } |
| 8297 |
else if (styles[mid * 2 + 1] < ch) { before = mid + 1; } |
| 8298 |
else { type = styles[mid * 2 + 2]; break } |
| 8299 |
} } |
| 8300 |
var cut = type ? type.indexOf("overlay ") : -1; |
| 8301 |
return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1) |
| 8302 |
}, |
| 8303 |
|
| 8304 |
getModeAt: function(pos) { |
| 8305 |
var mode = this.doc.mode; |
| 8306 |
if (!mode.innerMode) { return mode } |
| 8307 |
return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode |
| 8308 |
}, |
| 8309 |
|
| 8310 |
getHelper: function(pos, type) { |
| 8311 |
return this.getHelpers(pos, type)[0] |
| 8312 |
}, |
| 8313 |
|
| 8314 |
getHelpers: function(pos, type) { |
| 8315 |
var this$1 = this; |
| 8316 |
|
| 8317 |
var found = []; |
| 8318 |
if (!helpers.hasOwnProperty(type)) { return found } |
| 8319 |
var help = helpers[type], mode = this.getModeAt(pos); |
| 8320 |
if (typeof mode[type] == "string") { |
| 8321 |
if (help[mode[type]]) { found.push(help[mode[type]]); } |
| 8322 |
} else if (mode[type]) { |
| 8323 |
for (var i = 0; i < mode[type].length; i++) { |
| 8324 |
var val = help[mode[type][i]]; |
| 8325 |
if (val) { found.push(val); } |
| 8326 |
} |
| 8327 |
} else if (mode.helperType && help[mode.helperType]) { |
| 8328 |
found.push(help[mode.helperType]); |
| 8329 |
} else if (help[mode.name]) { |
| 8330 |
found.push(help[mode.name]); |
| 8331 |
} |
| 8332 |
for (var i$1 = 0; i$1 < help._global.length; i$1++) { |
| 8333 |
var cur = help._global[i$1]; |
| 8334 |
if (cur.pred(mode, this$1) && indexOf(found, cur.val) == -1) |
| 8335 |
{ found.push(cur.val); } |
| 8336 |
} |
| 8337 |
return found |
| 8338 |
}, |
| 8339 |
|
| 8340 |
getStateAfter: function(line, precise) { |
| 8341 |
var doc = this.doc; |
| 8342 |
line = clipLine(doc, line == null ? doc.first + doc.size - 1: line); |
| 8343 |
return getContextBefore(this, line + 1, precise).state |
| 8344 |
}, |
| 8345 |
|
| 8346 |
cursorCoords: function(start, mode) { |
| 8347 |
var pos, range$$1 = this.doc.sel.primary(); |
| 8348 |
if (start == null) { pos = range$$1.head; } |
| 8349 |
else if (typeof start == "object") { pos = clipPos(this.doc, start); } |
| 8350 |
else { pos = start ? range$$1.from() : range$$1.to(); } |
| 8351 |
return cursorCoords(this, pos, mode || "page") |
| 8352 |
}, |
| 8353 |
|
| 8354 |
charCoords: function(pos, mode) { |
| 8355 |
return charCoords(this, clipPos(this.doc, pos), mode || "page") |
| 8356 |
}, |
| 8357 |
|
| 8358 |
coordsChar: function(coords, mode) { |
| 8359 |
coords = fromCoordSystem(this, coords, mode || "page"); |
| 8360 |
return coordsChar(this, coords.left, coords.top) |
| 8361 |
}, |
| 8362 |
|
| 8363 |
lineAtHeight: function(height, mode) { |
| 8364 |
height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top; |
| 8365 |
return lineAtHeight(this.doc, height + this.display.viewOffset) |
| 8366 |
}, |
| 8367 |
heightAtLine: function(line, mode, includeWidgets) { |
| 8368 |
var end = false, lineObj; |
| 8369 |
if (typeof line == "number") { |
| 8370 |
var last = this.doc.first + this.doc.size - 1; |
| 8371 |
if (line < this.doc.first) { line = this.doc.first; } |
| 8372 |
else if (line > last) { line = last; end = true; } |
| 8373 |
lineObj = getLine(this.doc, line); |
| 8374 |
} else { |
| 8375 |
lineObj = line; |
| 8376 |
} |
| 8377 |
return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top + |
| 8378 |
(end ? this.doc.height - heightAtLine(lineObj) : 0) |
| 8379 |
}, |
| 8380 |
|
| 8381 |
defaultTextHeight: function() { return textHeight(this.display) }, |
| 8382 |
defaultCharWidth: function() { return charWidth(this.display) }, |
| 8383 |
|
| 8384 |
getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}}, |
| 8385 |
|
| 8386 |
addWidget: function(pos, node, scroll, vert, horiz) { |
| 8387 |
var display = this.display; |
| 8388 |
pos = cursorCoords(this, clipPos(this.doc, pos)); |
| 8389 |
var top = pos.bottom, left = pos.left; |
| 8390 |
node.style.position = "absolute"; |
| 8391 |
node.setAttribute("cm-ignore-events", "true"); |
| 8392 |
this.display.input.setUneditable(node); |
| 8393 |
display.sizer.appendChild(node); |
| 8394 |
if (vert == "over") { |
| 8395 |
top = pos.top; |
| 8396 |
} else if (vert == "above" || vert == "near") { |
| 8397 |
var vspace = Math.max(display.wrapper.clientHeight, this.doc.height), |
| 8398 |
hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth); |
| 8399 |
// Default to positioning above (if specified and possible); otherwise default to positioning below |
| 8400 |
if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight) |
| 8401 |
{ top = pos.top - node.offsetHeight; } |
| 8402 |
else if (pos.bottom + node.offsetHeight <= vspace) |
| 8403 |
{ top = pos.bottom; } |
| 8404 |
if (left + node.offsetWidth > hspace) |
| 8405 |
{ left = hspace - node.offsetWidth; } |
| 8406 |
} |
| 8407 |
node.style.top = top + "px"; |
| 8408 |
node.style.left = node.style.right = ""; |
| 8409 |
if (horiz == "right") { |
| 8410 |
left = display.sizer.clientWidth - node.offsetWidth; |
| 8411 |
node.style.right = "0px"; |
| 8412 |
} else { |
| 8413 |
if (horiz == "left") { left = 0; } |
| 8414 |
else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; } |
| 8415 |
node.style.left = left + "px"; |
| 8416 |
} |
| 8417 |
if (scroll) |
| 8418 |
{ scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); } |
| 8419 |
}, |
| 8420 |
|
| 8421 |
triggerOnKeyDown: methodOp(onKeyDown), |
| 8422 |
triggerOnKeyPress: methodOp(onKeyPress), |
| 8423 |
triggerOnKeyUp: onKeyUp, |
| 8424 |
triggerOnMouseDown: methodOp(onMouseDown), |
| 8425 |
|
| 8426 |
execCommand: function(cmd) { |
| 8427 |
if (commands.hasOwnProperty(cmd)) |
| 8428 |
{ return commands[cmd].call(null, this) } |
| 8429 |
}, |
| 8430 |
|
| 8431 |
triggerElectric: methodOp(function(text) { triggerElectric(this, text); }), |
| 8432 |
|
| 8433 |
findPosH: function(from, amount, unit, visually) { |
| 8434 |
var this$1 = this; |
| 8435 |
|
| 8436 |
var dir = 1; |
| 8437 |
if (amount < 0) { dir = -1; amount = -amount; } |
| 8438 |
var cur = clipPos(this.doc, from); |
| 8439 |
for (var i = 0; i < amount; ++i) { |
| 8440 |
cur = findPosH(this$1.doc, cur, dir, unit, visually); |
| 8441 |
if (cur.hitSide) { break } |
| 8442 |
} |
| 8443 |
return cur |
| 8444 |
}, |
| 8445 |
|
| 8446 |
moveH: methodOp(function(dir, unit) { |
| 8447 |
var this$1 = this; |
| 8448 |
|
| 8449 |
this.extendSelectionsBy(function (range$$1) { |
| 8450 |
if (this$1.display.shift || this$1.doc.extend || range$$1.empty()) |
| 8451 |
{ return findPosH(this$1.doc, range$$1.head, dir, unit, this$1.options.rtlMoveVisually) } |
| 8452 |
else |
| 8453 |
{ return dir < 0 ? range$$1.from() : range$$1.to() } |
| 8454 |
}, sel_move); |
| 8455 |
}), |
| 8456 |
|
| 8457 |
deleteH: methodOp(function(dir, unit) { |
| 8458 |
var sel = this.doc.sel, doc = this.doc; |
| 8459 |
if (sel.somethingSelected()) |
| 8460 |
{ doc.replaceSelection("", null, "+delete"); } |
| 8461 |
else |
| 8462 |
{ deleteNearSelection(this, function (range$$1) { |
| 8463 |
var other = findPosH(doc, range$$1.head, dir, unit, false); |
| 8464 |
return dir < 0 ? {from: other, to: range$$1.head} : {from: range$$1.head, to: other} |
| 8465 |
}); } |
| 8466 |
}), |
| 8467 |
|
| 8468 |
findPosV: function(from, amount, unit, goalColumn) { |
| 8469 |
var this$1 = this; |
| 8470 |
|
| 8471 |
var dir = 1, x = goalColumn; |
| 8472 |
if (amount < 0) { dir = -1; amount = -amount; } |
| 8473 |
var cur = clipPos(this.doc, from); |
| 8474 |
for (var i = 0; i < amount; ++i) { |
| 8475 |
var coords = cursorCoords(this$1, cur, "div"); |
| 8476 |
if (x == null) { x = coords.left; } |
| 8477 |
else { coords.left = x; } |
| 8478 |
cur = findPosV(this$1, coords, dir, unit); |
| 8479 |
if (cur.hitSide) { break } |
| 8480 |
} |
| 8481 |
return cur |
| 8482 |
}, |
| 8483 |
|
| 8484 |
moveV: methodOp(function(dir, unit) { |
| 8485 |
var this$1 = this; |
| 8486 |
|
| 8487 |
var doc = this.doc, goals = []; |
| 8488 |
var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected(); |
| 8489 |
doc.extendSelectionsBy(function (range$$1) { |
| 8490 |
if (collapse) |
| 8491 |
{ return dir < 0 ? range$$1.from() : range$$1.to() } |
| 8492 |
var headPos = cursorCoords(this$1, range$$1.head, "div"); |
| 8493 |
if (range$$1.goalColumn != null) { headPos.left = range$$1.goalColumn; } |
| 8494 |
goals.push(headPos.left); |
| 8495 |
var pos = findPosV(this$1, headPos, dir, unit); |
| 8496 |
if (unit == "page" && range$$1 == doc.sel.primary()) |
| 8497 |
{ addToScrollTop(this$1, charCoords(this$1, pos, "div").top - headPos.top); } |
| 8498 |
return pos |
| 8499 |
}, sel_move); |
| 8500 |
if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++) |
| 8501 |
{ doc.sel.ranges[i].goalColumn = goals[i]; } } |
| 8502 |
}), |
| 8503 |
|
| 8504 |
// Find the word at the given position (as returned by coordsChar). |
| 8505 |
findWordAt: function(pos) { |
| 8506 |
var doc = this.doc, line = getLine(doc, pos.line).text; |
| 8507 |
var start = pos.ch, end = pos.ch; |
| 8508 |
if (line) { |
| 8509 |
var helper = this.getHelper(pos, "wordChars"); |
| 8510 |
if ((pos.sticky == "before" || end == line.length) && start) { --start; } else { ++end; } |
| 8511 |
var startChar = line.charAt(start); |
| 8512 |
var check = isWordChar(startChar, helper) |
| 8513 |
? function (ch) { return isWordChar(ch, helper); } |
| 8514 |
: /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); } |
| 8515 |
: function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); }; |
| 8516 |
while (start > 0 && check(line.charAt(start - 1))) { --start; } |
| 8517 |
while (end < line.length && check(line.charAt(end))) { ++end; } |
| 8518 |
} |
| 8519 |
return new Range(Pos(pos.line, start), Pos(pos.line, end)) |
| 8520 |
}, |
| 8521 |
|
| 8522 |
toggleOverwrite: function(value) { |
| 8523 |
if (value != null && value == this.state.overwrite) { return } |
| 8524 |
if (this.state.overwrite = !this.state.overwrite) |
| 8525 |
{ addClass(this.display.cursorDiv, "CodeMirror-overwrite"); } |
| 8526 |
else |
| 8527 |
{ rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); } |
| 8528 |
|
| 8529 |
signal(this, "overwriteToggle", this, this.state.overwrite); |
| 8530 |
}, |
| 8531 |
hasFocus: function() { return this.display.input.getField() == activeElt() }, |
| 8532 |
isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) }, |
| 8533 |
|
| 8534 |
scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }), |
| 8535 |
getScrollInfo: function() { |
| 8536 |
var scroller = this.display.scroller; |
| 8537 |
return {left: scroller.scrollLeft, top: scroller.scrollTop, |
| 8538 |
height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight, |
| 8539 |
width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth, |
| 8540 |
clientHeight: displayHeight(this), clientWidth: displayWidth(this)} |
| 8541 |
}, |
| 8542 |
|
| 8543 |
scrollIntoView: methodOp(function(range$$1, margin) { |
| 8544 |
if (range$$1 == null) { |
| 8545 |
range$$1 = {from: this.doc.sel.primary().head, to: null}; |
| 8546 |
if (margin == null) { margin = this.options.cursorScrollMargin; } |
| 8547 |
} else if (typeof range$$1 == "number") { |
| 8548 |
range$$1 = {from: Pos(range$$1, 0), to: null}; |
| 8549 |
} else if (range$$1.from == null) { |
| 8550 |
range$$1 = {from: range$$1, to: null}; |
| 8551 |
} |
| 8552 |
if (!range$$1.to) { range$$1.to = range$$1.from; } |
| 8553 |
range$$1.margin = margin || 0; |
| 8554 |
|
| 8555 |
if (range$$1.from.line != null) { |
| 8556 |
scrollToRange(this, range$$1); |
| 8557 |
} else { |
| 8558 |
scrollToCoordsRange(this, range$$1.from, range$$1.to, range$$1.margin); |
| 8559 |
} |
| 8560 |
}), |
| 8561 |
|
| 8562 |
setSize: methodOp(function(width, height) { |
| 8563 |
var this$1 = this; |
| 8564 |
|
| 8565 |
var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; }; |
| 8566 |
if (width != null) { this.display.wrapper.style.width = interpret(width); } |
| 8567 |
if (height != null) { this.display.wrapper.style.height = interpret(height); } |
| 8568 |
if (this.options.lineWrapping) { clearLineMeasurementCache(this); } |
| 8569 |
var lineNo$$1 = this.display.viewFrom; |
| 8570 |
this.doc.iter(lineNo$$1, this.display.viewTo, function (line) { |
| 8571 |
if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) |
| 8572 |
{ if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo$$1, "widget"); break } } } |
| 8573 |
++lineNo$$1; |
| 8574 |
}); |
| 8575 |
this.curOp.forceUpdate = true; |
| 8576 |
signal(this, "refresh", this); |
| 8577 |
}), |
| 8578 |
|
| 8579 |
operation: function(f){return runInOp(this, f)}, |
| 8580 |
startOperation: function(){return startOperation(this)}, |
| 8581 |
endOperation: function(){return endOperation(this)}, |
| 8582 |
|
| 8583 |
refresh: methodOp(function() { |
| 8584 |
var oldHeight = this.display.cachedTextHeight; |
| 8585 |
regChange(this); |
| 8586 |
this.curOp.forceUpdate = true; |
| 8587 |
clearCaches(this); |
| 8588 |
scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop); |
| 8589 |
updateGutterSpace(this); |
| 8590 |
if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5) |
| 8591 |
{ estimateLineHeights(this); } |
| 8592 |
signal(this, "refresh", this); |
| 8593 |
}), |
| 8594 |
|
| 8595 |
swapDoc: methodOp(function(doc) { |
| 8596 |
var old = this.doc; |
| 8597 |
old.cm = null; |
| 8598 |
attachDoc(this, doc); |
| 8599 |
clearCaches(this); |
| 8600 |
this.display.input.reset(); |
| 8601 |
scrollToCoords(this, doc.scrollLeft, doc.scrollTop); |
| 8602 |
this.curOp.forceScroll = true; |
| 8603 |
signalLater(this, "swapDoc", this, old); |
| 8604 |
return old |
| 8605 |
}), |
| 8606 |
|
| 8607 |
phrase: function(phraseText) { |
| 8608 |
var phrases = this.options.phrases; |
| 8609 |
return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText |
| 8610 |
}, |
| 8611 |
|
| 8612 |
getInputField: function(){return this.display.input.getField()}, |
| 8613 |
getWrapperElement: function(){return this.display.wrapper}, |
| 8614 |
getScrollerElement: function(){return this.display.scroller}, |
| 8615 |
getGutterElement: function(){return this.display.gutters} |
| 8616 |
}; |
| 8617 |
eventMixin(CodeMirror); |
| 8618 |
|
| 8619 |
CodeMirror.registerHelper = function(type, name, value) { |
| 8620 |
if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; } |
| 8621 |
helpers[type][name] = value; |
| 8622 |
}; |
| 8623 |
CodeMirror.registerGlobalHelper = function(type, name, predicate, value) { |
| 8624 |
CodeMirror.registerHelper(type, name, value); |
| 8625 |
helpers[type]._global.push({pred: predicate, val: value}); |
| 8626 |
}; |
| 8627 |
} |
| 8628 |
|
| 8629 |
// Used for horizontal relative motion. Dir is -1 or 1 (left or |
| 8630 |
// right), unit can be "char", "column" (like char, but doesn't |
| 8631 |
// cross line boundaries), "word" (across next word), or "group" (to |
| 8632 |
// the start of next group of word or non-word-non-whitespace |
| 8633 |
// chars). The visually param controls whether, in right-to-left |
| 8634 |
// text, direction 1 means to move towards the next index in the |
| 8635 |
// string, or towards the character to the right of the current |
| 8636 |
// position. The resulting position will have a hitSide=true |
| 8637 |
// property if it reached the end of the document. |
| 8638 |
function findPosH(doc, pos, dir, unit, visually) { |
| 8639 |
var oldPos = pos; |
| 8640 |
var origDir = dir; |
| 8641 |
var lineObj = getLine(doc, pos.line); |
| 8642 |
function findNextLine() { |
| 8643 |
var l = pos.line + dir; |
| 8644 |
if (l < doc.first || l >= doc.first + doc.size) { return false } |
| 8645 |
pos = new Pos(l, pos.ch, pos.sticky); |
| 8646 |
return lineObj = getLine(doc, l) |
| 8647 |
} |
| 8648 |
function moveOnce(boundToLine) { |
| 8649 |
var next; |
| 8650 |
if (visually) { |
| 8651 |
next = moveVisually(doc.cm, lineObj, pos, dir); |
| 8652 |
} else { |
| 8653 |
next = moveLogically(lineObj, pos, dir); |
| 8654 |
} |
| 8655 |
if (next == null) { |
| 8656 |
if (!boundToLine && findNextLine()) |
| 8657 |
{ pos = endOfLine(visually, doc.cm, lineObj, pos.line, dir); } |
| 8658 |
else |
| 8659 |
{ return false } |
| 8660 |
} else { |
| 8661 |
pos = next; |
| 8662 |
} |
| 8663 |
return true |
| 8664 |
} |
| 8665 |
|
| 8666 |
if (unit == "char") { |
| 8667 |
moveOnce(); |
| 8668 |
} else if (unit == "column") { |
| 8669 |
moveOnce(true); |
| 8670 |
} else if (unit == "word" || unit == "group") { |
| 8671 |
var sawType = null, group = unit == "group"; |
| 8672 |
var helper = doc.cm && doc.cm.getHelper(pos, "wordChars"); |
| 8673 |
for (var first = true;; first = false) { |
| 8674 |
if (dir < 0 && !moveOnce(!first)) { break } |
| 8675 |
var cur = lineObj.text.charAt(pos.ch) || "\n"; |
| 8676 |
var type = isWordChar(cur, helper) ? "w" |
| 8677 |
: group && cur == "\n" ? "n" |
| 8678 |
: !group || /\s/.test(cur) ? null |
| 8679 |
: "p"; |
| 8680 |
if (group && !first && !type) { type = "s"; } |
| 8681 |
if (sawType && sawType != type) { |
| 8682 |
if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after";} |
| 8683 |
break |
| 8684 |
} |
| 8685 |
|
| 8686 |
if (type) { sawType = type; } |
| 8687 |
if (dir > 0 && !moveOnce(!first)) { break } |
| 8688 |
} |
| 8689 |
} |
| 8690 |
var result = skipAtomic(doc, pos, oldPos, origDir, true); |
| 8691 |
if (equalCursorPos(oldPos, result)) { result.hitSide = true; } |
| 8692 |
return result |
| 8693 |
} |
| 8694 |
|
| 8695 |
// For relative vertical movement. Dir may be -1 or 1. Unit can be |
| 8696 |
// "page" or "line". The resulting position will have a hitSide=true |
| 8697 |
// property if it reached the end of the document. |
| 8698 |
function findPosV(cm, pos, dir, unit) { |
| 8699 |
var doc = cm.doc, x = pos.left, y; |
| 8700 |
if (unit == "page") { |
| 8701 |
var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight); |
| 8702 |
var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3); |
| 8703 |
y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount; |
| 8704 |
|
| 8705 |
} else if (unit == "line") { |
| 8706 |
y = dir > 0 ? pos.bottom + 3 : pos.top - 3; |
| 8707 |
} |
| 8708 |
var target; |
| 8709 |
for (;;) { |
| 8710 |
target = coordsChar(cm, x, y); |
| 8711 |
if (!target.outside) { break } |
| 8712 |
if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break } |
| 8713 |
y += dir * 5; |
| 8714 |
} |
| 8715 |
return target |
| 8716 |
} |
| 8717 |
|
| 8718 |
// CONTENTEDITABLE INPUT STYLE |
| 8719 |
|
| 8720 |
var ContentEditableInput = function(cm) { |
| 8721 |
this.cm = cm; |
| 8722 |
this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null; |
| 8723 |
this.polling = new Delayed(); |
| 8724 |
this.composing = null; |
| 8725 |
this.gracePeriod = false; |
| 8726 |
this.readDOMTimeout = null; |
| 8727 |
}; |
| 8728 |
|
| 8729 |
ContentEditableInput.prototype.init = function (display) { |
| 8730 |
var this$1 = this; |
| 8731 |
|
| 8732 |
var input = this, cm = input.cm; |
| 8733 |
var div = input.div = display.lineDiv; |
| 8734 |
disableBrowserMagic(div, cm.options.spellcheck); |
| 8735 |
|
| 8736 |
on(div, "paste", function (e) { |
| 8737 |
if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return } |
| 8738 |
// IE doesn't fire input events, so we schedule a read for the pasted content in this way |
| 8739 |
if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); } |
| 8740 |
}); |
| 8741 |
|
| 8742 |
on(div, "compositionstart", function (e) { |
| 8743 |
this$1.composing = {data: e.data, done: false}; |
| 8744 |
}); |
| 8745 |
on(div, "compositionupdate", function (e) { |
| 8746 |
if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; } |
| 8747 |
}); |
| 8748 |
on(div, "compositionend", function (e) { |
| 8749 |
if (this$1.composing) { |
| 8750 |
if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); } |
| 8751 |
this$1.composing.done = true; |
| 8752 |
} |
| 8753 |
}); |
| 8754 |
|
| 8755 |
on(div, "touchstart", function () { return input.forceCompositionEnd(); }); |
| 8756 |
|
| 8757 |
on(div, "input", function () { |
| 8758 |
if (!this$1.composing) { this$1.readFromDOMSoon(); } |
| 8759 |
}); |
| 8760 |
|
| 8761 |
function onCopyCut(e) { |
| 8762 |
if (signalDOMEvent(cm, e)) { return } |
| 8763 |
if (cm.somethingSelected()) { |
| 8764 |
setLastCopied({lineWise: false, text: cm.getSelections()}); |
| 8765 |
if (e.type == "cut") { cm.replaceSelection("", null, "cut"); } |
| 8766 |
} else if (!cm.options.lineWiseCopyCut) { |
| 8767 |
return |
| 8768 |
} else { |
| 8769 |
var ranges = copyableRanges(cm); |
| 8770 |
setLastCopied({lineWise: true, text: ranges.text}); |
| 8771 |
if (e.type == "cut") { |
| 8772 |
cm.operation(function () { |
| 8773 |
cm.setSelections(ranges.ranges, 0, sel_dontScroll); |
| 8774 |
cm.replaceSelection("", null, "cut"); |
| 8775 |
}); |
| 8776 |
} |
| 8777 |
} |
| 8778 |
if (e.clipboardData) { |
| 8779 |
e.clipboardData.clearData(); |
| 8780 |
var content = lastCopied.text.join("\n"); |
| 8781 |
// iOS exposes the clipboard API, but seems to discard content inserted into it |
| 8782 |
e.clipboardData.setData("Text", content); |
| 8783 |
if (e.clipboardData.getData("Text") == content) { |
| 8784 |
e.preventDefault(); |
| 8785 |
return |
| 8786 |
} |
| 8787 |
} |
| 8788 |
// Old-fashioned briefly-focus-a-textarea hack |
| 8789 |
var kludge = hiddenTextarea(), te = kludge.firstChild; |
| 8790 |
cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild); |
| 8791 |
te.value = lastCopied.text.join("\n"); |
| 8792 |
var hadFocus = document.activeElement; |
| 8793 |
selectInput(te); |
| 8794 |
setTimeout(function () { |
| 8795 |
cm.display.lineSpace.removeChild(kludge); |
| 8796 |
hadFocus.focus(); |
| 8797 |
if (hadFocus == div) { input.showPrimarySelection(); } |
| 8798 |
}, 50); |
| 8799 |
} |
| 8800 |
on(div, "copy", onCopyCut); |
| 8801 |
on(div, "cut", onCopyCut); |
| 8802 |
}; |
| 8803 |
|
| 8804 |
ContentEditableInput.prototype.prepareSelection = function () { |
| 8805 |
var result = prepareSelection(this.cm, false); |
| 8806 |
result.focus = this.cm.state.focused; |
| 8807 |
return result |
| 8808 |
}; |
| 8809 |
|
| 8810 |
ContentEditableInput.prototype.showSelection = function (info, takeFocus) { |
| 8811 |
if (!info || !this.cm.display.view.length) { return } |
| 8812 |
if (info.focus || takeFocus) { this.showPrimarySelection(); } |
| 8813 |
this.showMultipleSelections(info); |
| 8814 |
}; |
| 8815 |
|
| 8816 |
ContentEditableInput.prototype.getSelection = function () { |
| 8817 |
return this.cm.display.wrapper.ownerDocument.getSelection() |
| 8818 |
}; |
| 8819 |
|
| 8820 |
ContentEditableInput.prototype.showPrimarySelection = function () { |
| 8821 |
var sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary(); |
| 8822 |
var from = prim.from(), to = prim.to(); |
| 8823 |
|
| 8824 |
if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) { |
| 8825 |
sel.removeAllRanges(); |
| 8826 |
return |
| 8827 |
} |
| 8828 |
|
| 8829 |
var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset); |
| 8830 |
var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset); |
| 8831 |
if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad && |
| 8832 |
cmp(minPos(curAnchor, curFocus), from) == 0 && |
| 8833 |
cmp(maxPos(curAnchor, curFocus), to) == 0) |
| 8834 |
{ return } |
| 8835 |
|
| 8836 |
var view = cm.display.view; |
| 8837 |
var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) || |
| 8838 |
{node: view[0].measure.map[2], offset: 0}; |
| 8839 |
var end = to.line < cm.display.viewTo && posToDOM(cm, to); |
| 8840 |
if (!end) { |
| 8841 |
var measure = view[view.length - 1].measure; |
| 8842 |
var map$$1 = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map; |
| 8843 |
end = {node: map$$1[map$$1.length - 1], offset: map$$1[map$$1.length - 2] - map$$1[map$$1.length - 3]}; |
| 8844 |
} |
| 8845 |
|
| 8846 |
if (!start || !end) { |
| 8847 |
sel.removeAllRanges(); |
| 8848 |
return |
| 8849 |
} |
| 8850 |
|
| 8851 |
var old = sel.rangeCount && sel.getRangeAt(0), rng; |
| 8852 |
try { rng = range(start.node, start.offset, end.offset, end.node); } |
| 8853 |
catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible |
| 8854 |
if (rng) { |
| 8855 |
if (!gecko && cm.state.focused) { |
| 8856 |
sel.collapse(start.node, start.offset); |
| 8857 |
if (!rng.collapsed) { |
| 8858 |
sel.removeAllRanges(); |
| 8859 |
sel.addRange(rng); |
| 8860 |
} |
| 8861 |
} else { |
| 8862 |
sel.removeAllRanges(); |
| 8863 |
sel.addRange(rng); |
| 8864 |
} |
| 8865 |
if (old && sel.anchorNode == null) { sel.addRange(old); } |
| 8866 |
else if (gecko) { this.startGracePeriod(); } |
| 8867 |
} |
| 8868 |
this.rememberSelection(); |
| 8869 |
}; |
| 8870 |
|
| 8871 |
ContentEditableInput.prototype.startGracePeriod = function () { |
| 8872 |
var this$1 = this; |
| 8873 |
|
| 8874 |
clearTimeout(this.gracePeriod); |
| 8875 |
this.gracePeriod = setTimeout(function () { |
| 8876 |
this$1.gracePeriod = false; |
| 8877 |
if (this$1.selectionChanged()) |
| 8878 |
{ this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); } |
| 8879 |
}, 20); |
| 8880 |
}; |
| 8881 |
|
| 8882 |
ContentEditableInput.prototype.showMultipleSelections = function (info) { |
| 8883 |
removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors); |
| 8884 |
removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection); |
| 8885 |
}; |
| 8886 |
|
| 8887 |
ContentEditableInput.prototype.rememberSelection = function () { |
| 8888 |
var sel = this.getSelection(); |
| 8889 |
this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset; |
| 8890 |
this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset; |
| 8891 |
}; |
| 8892 |
|
| 8893 |
ContentEditableInput.prototype.selectionInEditor = function () { |
| 8894 |
var sel = this.getSelection(); |
| 8895 |
if (!sel.rangeCount) { return false } |
| 8896 |
var node = sel.getRangeAt(0).commonAncestorContainer; |
| 8897 |
return contains(this.div, node) |
| 8898 |
}; |
| 8899 |
|
| 8900 |
ContentEditableInput.prototype.focus = function () { |
| 8901 |
if (this.cm.options.readOnly != "nocursor") { |
| 8902 |
if (!this.selectionInEditor()) |
| 8903 |
{ this.showSelection(this.prepareSelection(), true); } |
| 8904 |
this.div.focus(); |
| 8905 |
} |
| 8906 |
}; |
| 8907 |
ContentEditableInput.prototype.blur = function () { this.div.blur(); }; |
| 8908 |
ContentEditableInput.prototype.getField = function () { return this.div }; |
| 8909 |
|
| 8910 |
ContentEditableInput.prototype.supportsTouch = function () { return true }; |
| 8911 |
|
| 8912 |
ContentEditableInput.prototype.receivedFocus = function () { |
| 8913 |
var input = this; |
| 8914 |
if (this.selectionInEditor()) |
| 8915 |
{ this.pollSelection(); } |
| 8916 |
else |
| 8917 |
{ runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); } |
| 8918 |
|
| 8919 |
function poll() { |
| 8920 |
if (input.cm.state.focused) { |
| 8921 |
input.pollSelection(); |
| 8922 |
input.polling.set(input.cm.options.pollInterval, poll); |
| 8923 |
} |
| 8924 |
} |
| 8925 |
this.polling.set(this.cm.options.pollInterval, poll); |
| 8926 |
}; |
| 8927 |
|
| 8928 |
ContentEditableInput.prototype.selectionChanged = function () { |
| 8929 |
var sel = this.getSelection(); |
| 8930 |
return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset || |
| 8931 |
sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset |
| 8932 |
}; |
| 8933 |
|
| 8934 |
ContentEditableInput.prototype.pollSelection = function () { |
| 8935 |
if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return } |
| 8936 |
var sel = this.getSelection(), cm = this.cm; |
| 8937 |
// On Android Chrome (version 56, at least), backspacing into an |
| 8938 |
// uneditable block element will put the cursor in that element, |
| 8939 |
// and then, because it's not editable, hide the virtual keyboard. |
| 8940 |
// Because Android doesn't allow us to actually detect backspace |
| 8941 |
// presses in a sane way, this code checks for when that happens |
| 8942 |
// and simulates a backspace press in this case. |
| 8943 |
if (android && chrome && this.cm.options.gutters.length && isInGutter(sel.anchorNode)) { |
| 8944 |
this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs}); |
| 8945 |
this.blur(); |
| 8946 |
this.focus(); |
| 8947 |
return |
| 8948 |
} |
| 8949 |
if (this.composing) { return } |
| 8950 |
this.rememberSelection(); |
| 8951 |
var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset); |
| 8952 |
var head = domToPos(cm, sel.focusNode, sel.focusOffset); |
| 8953 |
if (anchor && head) { runInOp(cm, function () { |
| 8954 |
setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll); |
| 8955 |
if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; } |
| 8956 |
}); } |
| 8957 |
}; |
| 8958 |
|
| 8959 |
ContentEditableInput.prototype.pollContent = function () { |
| 8960 |
if (this.readDOMTimeout != null) { |
| 8961 |
clearTimeout(this.readDOMTimeout); |
| 8962 |
this.readDOMTimeout = null; |
| 8963 |
} |
| 8964 |
|
| 8965 |
var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary(); |
| 8966 |
var from = sel.from(), to = sel.to(); |
| 8967 |
if (from.ch == 0 && from.line > cm.firstLine()) |
| 8968 |
{ from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); } |
| 8969 |
if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine()) |
| 8970 |
{ to = Pos(to.line + 1, 0); } |
| 8971 |
if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false } |
| 8972 |
|
| 8973 |
var fromIndex, fromLine, fromNode; |
| 8974 |
if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) { |
| 8975 |
fromLine = lineNo(display.view[0].line); |
| 8976 |
fromNode = display.view[0].node; |
| 8977 |
} else { |
| 8978 |
fromLine = lineNo(display.view[fromIndex].line); |
| 8979 |
fromNode = display.view[fromIndex - 1].node.nextSibling; |
| 8980 |
} |
| 8981 |
var toIndex = findViewIndex(cm, to.line); |
| 8982 |
var toLine, toNode; |
| 8983 |
if (toIndex == display.view.length - 1) { |
| 8984 |
toLine = display.viewTo - 1; |
| 8985 |
toNode = display.lineDiv.lastChild; |
| 8986 |
} else { |
| 8987 |
toLine = lineNo(display.view[toIndex + 1].line) - 1; |
| 8988 |
toNode = display.view[toIndex + 1].node.previousSibling; |
| 8989 |
} |
| 8990 |
|
| 8991 |
if (!fromNode) { return false } |
| 8992 |
var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine)); |
| 8993 |
var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length)); |
| 8994 |
while (newText.length > 1 && oldText.length > 1) { |
| 8995 |
if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; } |
| 8996 |
else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; } |
| 8997 |
else { break } |
| 8998 |
} |
| 8999 |
|
| 9000 |
var cutFront = 0, cutEnd = 0; |
| 9001 |
var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length); |
| 9002 |
while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront)) |
| 9003 |
{ ++cutFront; } |
| 9004 |
var newBot = lst(newText), oldBot = lst(oldText); |
| 9005 |
var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0), |
| 9006 |
oldBot.length - (oldText.length == 1 ? cutFront : 0)); |
| 9007 |
while (cutEnd < maxCutEnd && |
| 9008 |
newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) |
| 9009 |
{ ++cutEnd; } |
| 9010 |
// Try to move start of change to start of selection if ambiguous |
| 9011 |
if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) { |
| 9012 |
while (cutFront && cutFront > from.ch && |
| 9013 |
newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) { |
| 9014 |
cutFront--; |
| 9015 |
cutEnd++; |
| 9016 |
} |
| 9017 |
} |
| 9018 |
|
| 9019 |
newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, ""); |
| 9020 |
newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, ""); |
| 9021 |
|
| 9022 |
var chFrom = Pos(fromLine, cutFront); |
| 9023 |
var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0); |
| 9024 |
if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) { |
| 9025 |
replaceRange(cm.doc, newText, chFrom, chTo, "+input"); |
| 9026 |
return true |
| 9027 |
} |
| 9028 |
}; |
| 9029 |
|
| 9030 |
ContentEditableInput.prototype.ensurePolled = function () { |
| 9031 |
this.forceCompositionEnd(); |
| 9032 |
}; |
| 9033 |
ContentEditableInput.prototype.reset = function () { |
| 9034 |
this.forceCompositionEnd(); |
| 9035 |
}; |
| 9036 |
ContentEditableInput.prototype.forceCompositionEnd = function () { |
| 9037 |
if (!this.composing) { return } |
| 9038 |
clearTimeout(this.readDOMTimeout); |
| 9039 |
this.composing = null; |
| 9040 |
this.updateFromDOM(); |
| 9041 |
this.div.blur(); |
| 9042 |
this.div.focus(); |
| 9043 |
}; |
| 9044 |
ContentEditableInput.prototype.readFromDOMSoon = function () { |
| 9045 |
var this$1 = this; |
| 9046 |
|
| 9047 |
if (this.readDOMTimeout != null) { return } |
| 9048 |
this.readDOMTimeout = setTimeout(function () { |
| 9049 |
this$1.readDOMTimeout = null; |
| 9050 |
if (this$1.composing) { |
| 9051 |
if (this$1.composing.done) { this$1.composing = null; } |
| 9052 |
else { return } |
| 9053 |
} |
| 9054 |
this$1.updateFromDOM(); |
| 9055 |
}, 80); |
| 9056 |
}; |
| 9057 |
|
| 9058 |
ContentEditableInput.prototype.updateFromDOM = function () { |
| 9059 |
var this$1 = this; |
| 9060 |
|
| 9061 |
if (this.cm.isReadOnly() || !this.pollContent()) |
| 9062 |
{ runInOp(this.cm, function () { return regChange(this$1.cm); }); } |
| 9063 |
}; |
| 9064 |
|
| 9065 |
ContentEditableInput.prototype.setUneditable = function (node) { |
| 9066 |
node.contentEditable = "false"; |
| 9067 |
}; |
| 9068 |
|
| 9069 |
ContentEditableInput.prototype.onKeyPress = function (e) { |
| 9070 |
if (e.charCode == 0 || this.composing) { return } |
| 9071 |
e.preventDefault(); |
| 9072 |
if (!this.cm.isReadOnly()) |
| 9073 |
{ operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); } |
| 9074 |
}; |
| 9075 |
|
| 9076 |
ContentEditableInput.prototype.readOnlyChanged = function (val) { |
| 9077 |
this.div.contentEditable = String(val != "nocursor"); |
| 9078 |
}; |
| 9079 |
|
| 9080 |
ContentEditableInput.prototype.onContextMenu = function () {}; |
| 9081 |
ContentEditableInput.prototype.resetPosition = function () {}; |
| 9082 |
|
| 9083 |
ContentEditableInput.prototype.needsContentAttribute = true; |
| 9084 |
|
| 9085 |
function posToDOM(cm, pos) { |
| 9086 |
var view = findViewForLine(cm, pos.line); |
| 9087 |
if (!view || view.hidden) { return null } |
| 9088 |
var line = getLine(cm.doc, pos.line); |
| 9089 |
var info = mapFromLineView(view, line, pos.line); |
| 9090 |
|
| 9091 |
var order = getOrder(line, cm.doc.direction), side = "left"; |
| 9092 |
if (order) { |
| 9093 |
var partPos = getBidiPartAt(order, pos.ch); |
| 9094 |
side = partPos % 2 ? "right" : "left"; |
| 9095 |
} |
| 9096 |
var result = nodeAndOffsetInLineMap(info.map, pos.ch, side); |
| 9097 |
result.offset = result.collapse == "right" ? result.end : result.start; |
| 9098 |
return result |
| 9099 |
} |
| 9100 |
|
| 9101 |
function isInGutter(node) { |
| 9102 |
for (var scan = node; scan; scan = scan.parentNode) |
| 9103 |
{ if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } } |
| 9104 |
return false |
| 9105 |
} |
| 9106 |
|
| 9107 |
function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos } |
| 9108 |
|
| 9109 |
function domTextBetween(cm, from, to, fromLine, toLine) { |
| 9110 |
var text = "", closing = false, lineSep = cm.doc.lineSeparator(), extraLinebreak = false; |
| 9111 |
function recognizeMarker(id) { return function (marker) { return marker.id == id; } } |
| 9112 |
function close() { |
| 9113 |
if (closing) { |
| 9114 |
text += lineSep; |
| 9115 |
if (extraLinebreak) { text += lineSep; } |
| 9116 |
closing = extraLinebreak = false; |
| 9117 |
} |
| 9118 |
} |
| 9119 |
function addText(str) { |
| 9120 |
if (str) { |
| 9121 |
close(); |
| 9122 |
text += str; |
| 9123 |
} |
| 9124 |
} |
| 9125 |
function walk(node) { |
| 9126 |
if (node.nodeType == 1) { |
| 9127 |
var cmText = node.getAttribute("cm-text"); |
| 9128 |
if (cmText) { |
| 9129 |
addText(cmText); |
| 9130 |
return |
| 9131 |
} |
| 9132 |
var markerID = node.getAttribute("cm-marker"), range$$1; |
| 9133 |
if (markerID) { |
| 9134 |
var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID)); |
| 9135 |
if (found.length && (range$$1 = found[0].find(0))) |
| 9136 |
{ addText(getBetween(cm.doc, range$$1.from, range$$1.to).join(lineSep)); } |
| 9137 |
return |
| 9138 |
} |
| 9139 |
if (node.getAttribute("contenteditable") == "false") { return } |
| 9140 |
var isBlock = /^(pre|div|p|li|table|br)$/i.test(node.nodeName); |
| 9141 |
if (!/^br$/i.test(node.nodeName) && node.textContent.length == 0) { return } |
| 9142 |
|
| 9143 |
if (isBlock) { close(); } |
| 9144 |
for (var i = 0; i < node.childNodes.length; i++) |
| 9145 |
{ walk(node.childNodes[i]); } |
| 9146 |
|
| 9147 |
if (/^(pre|p)$/i.test(node.nodeName)) { extraLinebreak = true; } |
| 9148 |
if (isBlock) { closing = true; } |
| 9149 |
} else if (node.nodeType == 3) { |
| 9150 |
addText(node.nodeValue.replace(/\u200b/g, "").replace(/\u00a0/g, " ")); |
| 9151 |
} |
| 9152 |
} |
| 9153 |
for (;;) { |
| 9154 |
walk(from); |
| 9155 |
if (from == to) { break } |
| 9156 |
from = from.nextSibling; |
| 9157 |
extraLinebreak = false; |
| 9158 |
} |
| 9159 |
return text |
| 9160 |
} |
| 9161 |
|
| 9162 |
function domToPos(cm, node, offset) { |
| 9163 |
var lineNode; |
| 9164 |
if (node == cm.display.lineDiv) { |
| 9165 |
lineNode = cm.display.lineDiv.childNodes[offset]; |
| 9166 |
if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) } |
| 9167 |
node = null; offset = 0; |
| 9168 |
} else { |
| 9169 |
for (lineNode = node;; lineNode = lineNode.parentNode) { |
| 9170 |
if (!lineNode || lineNode == cm.display.lineDiv) { return null } |
| 9171 |
if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break } |
| 9172 |
} |
| 9173 |
} |
| 9174 |
for (var i = 0; i < cm.display.view.length; i++) { |
| 9175 |
var lineView = cm.display.view[i]; |
| 9176 |
if (lineView.node == lineNode) |
| 9177 |
{ return locateNodeInLineView(lineView, node, offset) } |
| 9178 |
} |
| 9179 |
} |
| 9180 |
|
| 9181 |
function locateNodeInLineView(lineView, node, offset) { |
| 9182 |
var wrapper = lineView.text.firstChild, bad = false; |
| 9183 |
if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) } |
| 9184 |
if (node == wrapper) { |
| 9185 |
bad = true; |
| 9186 |
node = wrapper.childNodes[offset]; |
| 9187 |
offset = 0; |
| 9188 |
if (!node) { |
| 9189 |
var line = lineView.rest ? lst(lineView.rest) : lineView.line; |
| 9190 |
return badPos(Pos(lineNo(line), line.text.length), bad) |
| 9191 |
} |
| 9192 |
} |
| 9193 |
|
| 9194 |
var textNode = node.nodeType == 3 ? node : null, topNode = node; |
| 9195 |
if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) { |
| 9196 |
textNode = node.firstChild; |
| 9197 |
if (offset) { offset = textNode.nodeValue.length; } |
| 9198 |
} |
| 9199 |
while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; } |
| 9200 |
var measure = lineView.measure, maps = measure.maps; |
| 9201 |
|
| 9202 |
function find(textNode, topNode, offset) { |
| 9203 |
for (var i = -1; i < (maps ? maps.length : 0); i++) { |
| 9204 |
var map$$1 = i < 0 ? measure.map : maps[i]; |
| 9205 |
for (var j = 0; j < map$$1.length; j += 3) { |
| 9206 |
var curNode = map$$1[j + 2]; |
| 9207 |
if (curNode == textNode || curNode == topNode) { |
| 9208 |
var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]); |
| 9209 |
var ch = map$$1[j] + offset; |
| 9210 |
if (offset < 0 || curNode != textNode) { ch = map$$1[j + (offset ? 1 : 0)]; } |
| 9211 |
return Pos(line, ch) |
| 9212 |
} |
| 9213 |
} |
| 9214 |
} |
| 9215 |
} |
| 9216 |
var found = find(textNode, topNode, offset); |
| 9217 |
if (found) { return badPos(found, bad) } |
| 9218 |
|
| 9219 |
// FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems |
| 9220 |
for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) { |
| 9221 |
found = find(after, after.firstChild, 0); |
| 9222 |
if (found) |
| 9223 |
{ return badPos(Pos(found.line, found.ch - dist), bad) } |
| 9224 |
else |
| 9225 |
{ dist += after.textContent.length; } |
| 9226 |
} |
| 9227 |
for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) { |
| 9228 |
found = find(before, before.firstChild, -1); |
| 9229 |
if (found) |
| 9230 |
{ return badPos(Pos(found.line, found.ch + dist$1), bad) } |
| 9231 |
else |
| 9232 |
{ dist$1 += before.textContent.length; } |
| 9233 |
} |
| 9234 |
} |
| 9235 |
|
| 9236 |
// TEXTAREA INPUT STYLE |
| 9237 |
|
| 9238 |
var TextareaInput = function(cm) { |
| 9239 |
this.cm = cm; |
| 9240 |
// See input.poll and input.reset |
| 9241 |
this.prevInput = ""; |
| 9242 |
|
| 9243 |
// Flag that indicates whether we expect input to appear real soon |
| 9244 |
// now (after some event like 'keypress' or 'input') and are |
| 9245 |
// polling intensively. |
| 9246 |
this.pollingFast = false; |
| 9247 |
// Self-resetting timeout for the poller |
| 9248 |
this.polling = new Delayed(); |
| 9249 |
// Used to work around IE issue with selection being forgotten when focus moves away from textarea |
| 9250 |
this.hasSelection = false; |
| 9251 |
this.composing = null; |
| 9252 |
}; |
| 9253 |
|
| 9254 |
TextareaInput.prototype.init = function (display) { |
| 9255 |
var this$1 = this; |
| 9256 |
|
| 9257 |
var input = this, cm = this.cm; |
| 9258 |
this.createField(display); |
| 9259 |
var te = this.textarea; |
| 9260 |
|
| 9261 |
display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild); |
| 9262 |
|
| 9263 |
// Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore) |
| 9264 |
if (ios) { te.style.width = "0px"; } |
| 9265 |
|
| 9266 |
on(te, "input", function () { |
| 9267 |
if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; } |
| 9268 |
input.poll(); |
| 9269 |
}); |
| 9270 |
|
| 9271 |
on(te, "paste", function (e) { |
| 9272 |
if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return } |
| 9273 |
|
| 9274 |
cm.state.pasteIncoming = true; |
| 9275 |
input.fastPoll(); |
| 9276 |
}); |
| 9277 |
|
| 9278 |
function prepareCopyCut(e) { |
| 9279 |
if (signalDOMEvent(cm, e)) { return } |
| 9280 |
if (cm.somethingSelected()) { |
| 9281 |
setLastCopied({lineWise: false, text: cm.getSelections()}); |
| 9282 |
} else if (!cm.options.lineWiseCopyCut) { |
| 9283 |
return |
| 9284 |
} else { |
| 9285 |
var ranges = copyableRanges(cm); |
| 9286 |
setLastCopied({lineWise: true, text: ranges.text}); |
| 9287 |
if (e.type == "cut") { |
| 9288 |
cm.setSelections(ranges.ranges, null, sel_dontScroll); |
| 9289 |
} else { |
| 9290 |
input.prevInput = ""; |
| 9291 |
te.value = ranges.text.join("\n"); |
| 9292 |
selectInput(te); |
| 9293 |
} |
| 9294 |
} |
| 9295 |
if (e.type == "cut") { cm.state.cutIncoming = true; } |
| 9296 |
} |
| 9297 |
on(te, "cut", prepareCopyCut); |
| 9298 |
on(te, "copy", prepareCopyCut); |
| 9299 |
|
| 9300 |
on(display.scroller, "paste", function (e) { |
| 9301 |
if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return } |
| 9302 |
cm.state.pasteIncoming = true; |
| 9303 |
input.focus(); |
| 9304 |
}); |
| 9305 |
|
| 9306 |
// Prevent normal selection in the editor (we handle our own) |
| 9307 |
on(display.lineSpace, "selectstart", function (e) { |
| 9308 |
if (!eventInWidget(display, e)) { e_preventDefault(e); } |
| 9309 |
}); |
| 9310 |
|
| 9311 |
on(te, "compositionstart", function () { |
| 9312 |
var start = cm.getCursor("from"); |
| 9313 |
if (input.composing) { input.composing.range.clear(); } |
| 9314 |
input.composing = { |
| 9315 |
start: start, |
| 9316 |
range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"}) |
| 9317 |
}; |
| 9318 |
}); |
| 9319 |
on(te, "compositionend", function () { |
| 9320 |
if (input.composing) { |
| 9321 |
input.poll(); |
| 9322 |
input.composing.range.clear(); |
| 9323 |
input.composing = null; |
| 9324 |
} |
| 9325 |
}); |
| 9326 |
}; |
| 9327 |
|
| 9328 |
TextareaInput.prototype.createField = function (_display) { |
| 9329 |
// Wraps and hides input textarea |
| 9330 |
this.wrapper = hiddenTextarea(); |
| 9331 |
// The semihidden textarea that is focused when the editor is |
| 9332 |
// focused, and receives input. |
| 9333 |
this.textarea = this.wrapper.firstChild; |
| 9334 |
}; |
| 9335 |
|
| 9336 |
TextareaInput.prototype.prepareSelection = function () { |
| 9337 |
// Redraw the selection and/or cursor |
| 9338 |
var cm = this.cm, display = cm.display, doc = cm.doc; |
| 9339 |
var result = prepareSelection(cm); |
| 9340 |
|
| 9341 |
// Move the hidden textarea near the cursor to prevent scrolling artifacts |
| 9342 |
if (cm.options.moveInputWithCursor) { |
| 9343 |
var headPos = cursorCoords(cm, doc.sel.primary().head, "div"); |
| 9344 |
var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect(); |
| 9345 |
result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10, |
| 9346 |
headPos.top + lineOff.top - wrapOff.top)); |
| 9347 |
result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10, |
| 9348 |
headPos.left + lineOff.left - wrapOff.left)); |
| 9349 |
} |
| 9350 |
|
| 9351 |
return result |
| 9352 |
}; |
| 9353 |
|
| 9354 |
TextareaInput.prototype.showSelection = function (drawn) { |
| 9355 |
var cm = this.cm, display = cm.display; |
| 9356 |
removeChildrenAndAdd(display.cursorDiv, drawn.cursors); |
| 9357 |
removeChildrenAndAdd(display.selectionDiv, drawn.selection); |
| 9358 |
if (drawn.teTop != null) { |
| 9359 |
this.wrapper.style.top = drawn.teTop + "px"; |
| 9360 |
this.wrapper.style.left = drawn.teLeft + "px"; |
| 9361 |
} |
| 9362 |
}; |
| 9363 |
|
| 9364 |
// Reset the input to correspond to the selection (or to be empty, |
| 9365 |
// when not typing and nothing is selected) |
| 9366 |
TextareaInput.prototype.reset = function (typing) { |
| 9367 |
if (this.contextMenuPending || this.composing) { return } |
| 9368 |
var cm = this.cm; |
| 9369 |
if (cm.somethingSelected()) { |
| 9370 |
this.prevInput = ""; |
| 9371 |
var content = cm.getSelection(); |
| 9372 |
this.textarea.value = content; |
| 9373 |
if (cm.state.focused) { selectInput(this.textarea); } |
| 9374 |
if (ie && ie_version >= 9) { this.hasSelection = content; } |
| 9375 |
} else if (!typing) { |
| 9376 |
this.prevInput = this.textarea.value = ""; |
| 9377 |
if (ie && ie_version >= 9) { this.hasSelection = null; } |
| 9378 |
} |
| 9379 |
}; |
| 9380 |
|
| 9381 |
TextareaInput.prototype.getField = function () { return this.textarea }; |
| 9382 |
|
| 9383 |
TextareaInput.prototype.supportsTouch = function () { return false }; |
| 9384 |
|
| 9385 |
TextareaInput.prototype.focus = function () { |
| 9386 |
if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) { |
| 9387 |
try { this.textarea.focus(); } |
| 9388 |
catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM |
| 9389 |
} |
| 9390 |
}; |
| 9391 |
|
| 9392 |
TextareaInput.prototype.blur = function () { this.textarea.blur(); }; |
| 9393 |
|
| 9394 |
TextareaInput.prototype.resetPosition = function () { |
| 9395 |
this.wrapper.style.top = this.wrapper.style.left = 0; |
| 9396 |
}; |
| 9397 |
|
| 9398 |
TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); }; |
| 9399 |
|
| 9400 |
// Poll for input changes, using the normal rate of polling. This |
| 9401 |
// runs as long as the editor is focused. |
| 9402 |
TextareaInput.prototype.slowPoll = function () { |
| 9403 |
var this$1 = this; |
| 9404 |
|
| 9405 |
if (this.pollingFast) { return } |
| 9406 |
this.polling.set(this.cm.options.pollInterval, function () { |
| 9407 |
this$1.poll(); |
| 9408 |
if (this$1.cm.state.focused) { this$1.slowPoll(); } |
| 9409 |
}); |
| 9410 |
}; |
| 9411 |
|
| 9412 |
// When an event has just come in that is likely to add or change |
| 9413 |
// something in the input textarea, we poll faster, to ensure that |
| 9414 |
// the change appears on the screen quickly. |
| 9415 |
TextareaInput.prototype.fastPoll = function () { |
| 9416 |
var missed = false, input = this; |
| 9417 |
input.pollingFast = true; |
| 9418 |
function p() { |
| 9419 |
var changed = input.poll(); |
| 9420 |
if (!changed && !missed) {missed = true; input.polling.set(60, p);} |
| 9421 |
else {input.pollingFast = false; input.slowPoll();} |
| 9422 |
} |
| 9423 |
input.polling.set(20, p); |
| 9424 |
}; |
| 9425 |
|
| 9426 |
// Read input from the textarea, and update the document to match. |
| 9427 |
// When something is selected, it is present in the textarea, and |
| 9428 |
// selected (unless it is huge, in which case a placeholder is |
| 9429 |
// used). When nothing is selected, the cursor sits after previously |
| 9430 |
// seen text (can be empty), which is stored in prevInput (we must |
| 9431 |
// not reset the textarea when typing, because that breaks IME). |
| 9432 |
TextareaInput.prototype.poll = function () { |
| 9433 |
var this$1 = this; |
| 9434 |
|
| 9435 |
var cm = this.cm, input = this.textarea, prevInput = this.prevInput; |
| 9436 |
// Since this is called a *lot*, try to bail out as cheaply as |
| 9437 |
// possible when it is clear that nothing happened. hasSelection |
| 9438 |
// will be the case when there is a lot of text in the textarea, |
| 9439 |
// in which case reading its value would be expensive. |
| 9440 |
if (this.contextMenuPending || !cm.state.focused || |
| 9441 |
(hasSelection(input) && !prevInput && !this.composing) || |
| 9442 |
cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq) |
| 9443 |
{ return false } |
| 9444 |
|
| 9445 |
var text = input.value; |
| 9446 |
// If nothing changed, bail. |
| 9447 |
if (text == prevInput && !cm.somethingSelected()) { return false } |
| 9448 |
// Work around nonsensical selection resetting in IE9/10, and |
| 9449 |
// inexplicable appearance of private area unicode characters on |
| 9450 |
// some key combos in Mac (#2689). |
| 9451 |
if (ie && ie_version >= 9 && this.hasSelection === text || |
| 9452 |
mac && /[\uf700-\uf7ff]/.test(text)) { |
| 9453 |
cm.display.input.reset(); |
| 9454 |
return false |
| 9455 |
} |
| 9456 |
|
| 9457 |
if (cm.doc.sel == cm.display.selForContextMenu) { |
| 9458 |
var first = text.charCodeAt(0); |
| 9459 |
if (first == 0x200b && !prevInput) { prevInput = "\u200b"; } |
| 9460 |
if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") } |
| 9461 |
} |
| 9462 |
// Find the part of the input that is actually new |
| 9463 |
var same = 0, l = Math.min(prevInput.length, text.length); |
| 9464 |
while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; } |
| 9465 |
|
| 9466 |
runInOp(cm, function () { |
| 9467 |
applyTextInput(cm, text.slice(same), prevInput.length - same, |
| 9468 |
null, this$1.composing ? "*compose" : null); |
| 9469 |
|
| 9470 |
// Don't leave long text in the textarea, since it makes further polling slow |
| 9471 |
if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = ""; } |
| 9472 |
else { this$1.prevInput = text; } |
| 9473 |
|
| 9474 |
if (this$1.composing) { |
| 9475 |
this$1.composing.range.clear(); |
| 9476 |
this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"), |
| 9477 |
{className: "CodeMirror-composing"}); |
| 9478 |
} |
| 9479 |
}); |
| 9480 |
return true |
| 9481 |
}; |
| 9482 |
|
| 9483 |
TextareaInput.prototype.ensurePolled = function () { |
| 9484 |
if (this.pollingFast && this.poll()) { this.pollingFast = false; } |
| 9485 |
}; |
| 9486 |
|
| 9487 |
TextareaInput.prototype.onKeyPress = function () { |
| 9488 |
if (ie && ie_version >= 9) { this.hasSelection = null; } |
| 9489 |
this.fastPoll(); |
| 9490 |
}; |
| 9491 |
|
| 9492 |
TextareaInput.prototype.onContextMenu = function (e) { |
| 9493 |
var input = this, cm = input.cm, display = cm.display, te = input.textarea; |
| 9494 |
if (input.contextMenuPending) { input.contextMenuPending(); } |
| 9495 |
var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop; |
| 9496 |
if (!pos || presto) { return } // Opera is difficult. |
| 9497 |
|
| 9498 |
// Reset the current text selection only if the click is done outside of the selection |
| 9499 |
// and 'resetSelectionOnContextMenu' option is true. |
| 9500 |
var reset = cm.options.resetSelectionOnContextMenu; |
| 9501 |
if (reset && cm.doc.sel.contains(pos) == -1) |
| 9502 |
{ operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); } |
| 9503 |
|
| 9504 |
var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText; |
| 9505 |
var wrapperBox = input.wrapper.offsetParent.getBoundingClientRect(); |
| 9506 |
input.wrapper.style.cssText = "position: static"; |
| 9507 |
te.style.cssText = "position: absolute; width: 30px; height: 30px;\n top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);"; |
| 9508 |
var oldScrollY; |
| 9509 |
if (webkit) { oldScrollY = window.scrollY; } // Work around Chrome issue (#2712) |
| 9510 |
display.input.focus(); |
| 9511 |
if (webkit) { window.scrollTo(null, oldScrollY); } |
| 9512 |
display.input.reset(); |
| 9513 |
// Adds "Select all" to context menu in FF |
| 9514 |
if (!cm.somethingSelected()) { te.value = input.prevInput = " "; } |
| 9515 |
input.contextMenuPending = rehide; |
| 9516 |
display.selForContextMenu = cm.doc.sel; |
| 9517 |
clearTimeout(display.detectingSelectAll); |
| 9518 |
|
| 9519 |
// Select-all will be greyed out if there's nothing to select, so |
| 9520 |
// this adds a zero-width space so that we can later check whether |
| 9521 |
// it got selected. |
| 9522 |
function prepareSelectAllHack() { |
| 9523 |
if (te.selectionStart != null) { |
| 9524 |
var selected = cm.somethingSelected(); |
| 9525 |
var extval = "\u200b" + (selected ? te.value : ""); |
| 9526 |
te.value = "\u21da"; // Used to catch context-menu undo |
| 9527 |
te.value = extval; |
| 9528 |
input.prevInput = selected ? "" : "\u200b"; |
| 9529 |
te.selectionStart = 1; te.selectionEnd = extval.length; |
| 9530 |
// Re-set this, in case some other handler touched the |
| 9531 |
// selection in the meantime. |
| 9532 |
display.selForContextMenu = cm.doc.sel; |
| 9533 |
} |
| 9534 |
} |
| 9535 |
function rehide() { |
| 9536 |
if (input.contextMenuPending != rehide) { return } |
| 9537 |
input.contextMenuPending = false; |
| 9538 |
input.wrapper.style.cssText = oldWrapperCSS; |
| 9539 |
te.style.cssText = oldCSS; |
| 9540 |
if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); } |
| 9541 |
|
| 9542 |
// Try to detect the user choosing select-all |
| 9543 |
if (te.selectionStart != null) { |
| 9544 |
if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); } |
| 9545 |
var i = 0, poll = function () { |
| 9546 |
if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 && |
| 9547 |
te.selectionEnd > 0 && input.prevInput == "\u200b") { |
| 9548 |
operation(cm, selectAll)(cm); |
| 9549 |
} else if (i++ < 10) { |
| 9550 |
display.detectingSelectAll = setTimeout(poll, 500); |
| 9551 |
} else { |
| 9552 |
display.selForContextMenu = null; |
| 9553 |
display.input.reset(); |
| 9554 |
} |
| 9555 |
}; |
| 9556 |
display.detectingSelectAll = setTimeout(poll, 200); |
| 9557 |
} |
| 9558 |
} |
| 9559 |
|
| 9560 |
if (ie && ie_version >= 9) { prepareSelectAllHack(); } |
| 9561 |
if (captureRightClick) { |
| 9562 |
e_stop(e); |
| 9563 |
var mouseup = function () { |
| 9564 |
off(window, "mouseup", mouseup); |
| 9565 |
setTimeout(rehide, 20); |
| 9566 |
}; |
| 9567 |
on(window, "mouseup", mouseup); |
| 9568 |
} else { |
| 9569 |
setTimeout(rehide, 50); |
| 9570 |
} |
| 9571 |
}; |
| 9572 |
|
| 9573 |
TextareaInput.prototype.readOnlyChanged = function (val) { |
| 9574 |
if (!val) { this.reset(); } |
| 9575 |
this.textarea.disabled = val == "nocursor"; |
| 9576 |
}; |
| 9577 |
|
| 9578 |
TextareaInput.prototype.setUneditable = function () {}; |
| 9579 |
|
| 9580 |
TextareaInput.prototype.needsContentAttribute = false; |
| 9581 |
|
| 9582 |
function fromTextArea(textarea, options) { |
| 9583 |
options = options ? copyObj(options) : {}; |
| 9584 |
options.value = textarea.value; |
| 9585 |
if (!options.tabindex && textarea.tabIndex) |
| 9586 |
{ options.tabindex = textarea.tabIndex; } |
| 9587 |
if (!options.placeholder && textarea.placeholder) |
| 9588 |
{ options.placeholder = textarea.placeholder; } |
| 9589 |
// Set autofocus to true if this textarea is focused, or if it has |
| 9590 |
// autofocus and no other element is focused. |
| 9591 |
if (options.autofocus == null) { |
| 9592 |
var hasFocus = activeElt(); |
| 9593 |
options.autofocus = hasFocus == textarea || |
| 9594 |
textarea.getAttribute("autofocus") != null && hasFocus == document.body; |
| 9595 |
} |
| 9596 |
|
| 9597 |
function save() {textarea.value = cm.getValue();} |
| 9598 |
|
| 9599 |
var realSubmit; |
| 9600 |
if (textarea.form) { |
| 9601 |
on(textarea.form, "submit", save); |
| 9602 |
// Deplorable hack to make the submit method do the right thing. |
| 9603 |
if (!options.leaveSubmitMethodAlone) { |
| 9604 |
var form = textarea.form; |
| 9605 |
realSubmit = form.submit; |
| 9606 |
try { |
| 9607 |
var wrappedSubmit = form.submit = function () { |
| 9608 |
save(); |
| 9609 |
form.submit = realSubmit; |
| 9610 |
form.submit(); |
| 9611 |
form.submit = wrappedSubmit; |
| 9612 |
}; |
| 9613 |
} catch(e) {} |
| 9614 |
} |
| 9615 |
} |
| 9616 |
|
| 9617 |
options.finishInit = function (cm) { |
| 9618 |
cm.save = save; |
| 9619 |
cm.getTextArea = function () { return textarea; }; |
| 9620 |
cm.toTextArea = function () { |
| 9621 |
cm.toTextArea = isNaN; // Prevent this from being ran twice |
| 9622 |
save(); |
| 9623 |
textarea.parentNode.removeChild(cm.getWrapperElement()); |
| 9624 |
textarea.style.display = ""; |
| 9625 |
if (textarea.form) { |
| 9626 |
off(textarea.form, "submit", save); |
| 9627 |
if (typeof textarea.form.submit == "function") |
| 9628 |
{ textarea.form.submit = realSubmit; } |
| 9629 |
} |
| 9630 |
}; |
| 9631 |
}; |
| 9632 |
|
| 9633 |
textarea.style.display = "none"; |
| 9634 |
var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); }, |
| 9635 |
options); |
| 9636 |
return cm |
| 9637 |
} |
| 9638 |
|
| 9639 |
function addLegacyProps(CodeMirror) { |
| 9640 |
CodeMirror.off = off; |
| 9641 |
CodeMirror.on = on; |
| 9642 |
CodeMirror.wheelEventPixels = wheelEventPixels; |
| 9643 |
CodeMirror.Doc = Doc; |
| 9644 |
CodeMirror.splitLines = splitLinesAuto; |
| 9645 |
CodeMirror.countColumn = countColumn; |
| 9646 |
CodeMirror.findColumn = findColumn; |
| 9647 |
CodeMirror.isWordChar = isWordCharBasic; |
| 9648 |
CodeMirror.Pass = Pass; |
| 9649 |
CodeMirror.signal = signal; |
| 9650 |
CodeMirror.Line = Line; |
| 9651 |
CodeMirror.changeEnd = changeEnd; |
| 9652 |
CodeMirror.scrollbarModel = scrollbarModel; |
| 9653 |
CodeMirror.Pos = Pos; |
| 9654 |
CodeMirror.cmpPos = cmp; |
| 9655 |
CodeMirror.modes = modes; |
| 9656 |
CodeMirror.mimeModes = mimeModes; |
| 9657 |
CodeMirror.resolveMode = resolveMode; |
| 9658 |
CodeMirror.getMode = getMode; |
| 9659 |
CodeMirror.modeExtensions = modeExtensions; |
| 9660 |
CodeMirror.extendMode = extendMode; |
| 9661 |
CodeMirror.copyState = copyState; |
| 9662 |
CodeMirror.startState = startState; |
| 9663 |
CodeMirror.innerMode = innerMode; |
| 9664 |
CodeMirror.commands = commands; |
| 9665 |
CodeMirror.keyMap = keyMap; |
| 9666 |
CodeMirror.keyName = keyName; |
| 9667 |
CodeMirror.isModifierKey = isModifierKey; |
| 9668 |
CodeMirror.lookupKey = lookupKey; |
| 9669 |
CodeMirror.normalizeKeyMap = normalizeKeyMap; |
| 9670 |
CodeMirror.StringStream = StringStream; |
| 9671 |
CodeMirror.SharedTextMarker = SharedTextMarker; |
| 9672 |
CodeMirror.TextMarker = TextMarker; |
| 9673 |
CodeMirror.LineWidget = LineWidget; |
| 9674 |
CodeMirror.e_preventDefault = e_preventDefault; |
| 9675 |
CodeMirror.e_stopPropagation = e_stopPropagation; |
| 9676 |
CodeMirror.e_stop = e_stop; |
| 9677 |
CodeMirror.addClass = addClass; |
| 9678 |
CodeMirror.contains = contains; |
| 9679 |
CodeMirror.rmClass = rmClass; |
| 9680 |
CodeMirror.keyNames = keyNames; |
| 9681 |
} |
| 9682 |
|
| 9683 |
// EDITOR CONSTRUCTOR |
| 9684 |
|
| 9685 |
defineOptions(CodeMirror); |
| 9686 |
|
| 9687 |
addEditorMethods(CodeMirror); |
| 9688 |
|
| 9689 |
// Set up methods on CodeMirror's prototype to redirect to the editor's document. |
| 9690 |
var dontDelegate = "iter insert remove copy getEditor constructor".split(" "); |
| 9691 |
for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0) |
| 9692 |
{ CodeMirror.prototype[prop] = (function(method) { |
| 9693 |
return function() {return method.apply(this.doc, arguments)} |
| 9694 |
})(Doc.prototype[prop]); } } |
| 9695 |
|
| 9696 |
eventMixin(Doc); |
| 9697 |
CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput}; |
| 9698 |
|
| 9699 |
// Extra arguments are stored as the mode's dependencies, which is |
| 9700 |
// used by (legacy) mechanisms like loadmode.js to automatically |
| 9701 |
// load a mode. (Preferred mechanism is the require/define calls.) |
| 9702 |
CodeMirror.defineMode = function(name/*, mode, …*/) { |
| 9703 |
if (!CodeMirror.defaults.mode && name != "null") { CodeMirror.defaults.mode = name; } |
| 9704 |
defineMode.apply(this, arguments); |
| 9705 |
}; |
| 9706 |
|
| 9707 |
CodeMirror.defineMIME = defineMIME; |
| 9708 |
|
| 9709 |
// Minimal default mode. |
| 9710 |
CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); }); |
| 9711 |
CodeMirror.defineMIME("text/plain", "null"); |
| 9712 |
|
| 9713 |
// EXTENSIONS |
| 9714 |
|
| 9715 |
CodeMirror.defineExtension = function (name, func) { |
| 9716 |
CodeMirror.prototype[name] = func; |
| 9717 |
}; |
| 9718 |
CodeMirror.defineDocExtension = function (name, func) { |
| 9719 |
Doc.prototype[name] = func; |
| 9720 |
}; |
| 9721 |
|
| 9722 |
CodeMirror.fromTextArea = fromTextArea; |
| 9723 |
|
| 9724 |
addLegacyProps(CodeMirror); |
| 9725 |
|
| 9726 |
CodeMirror.version = "5.42.2"; |
| 9727 |
|
| 9728 |
return CodeMirror; |
| 9729 |
|
| 9730 |
}))); |
| 9731 |
|
