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// CodeMirror, copyright (c) by Marijn Haverbeke and others |
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// Distributed under an MIT license: http://codemirror.net/LICENSE |
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|
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(function(mod) { |
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if (typeof exports == "object" && typeof module == "object") // CommonJS |
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mod(require("../../lib/codemirror")); |
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else if (typeof define == "function" && define.amd) // AMD |
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define(["../../lib/codemirror"], mod); |
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else // Plain browser env |
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mod(CodeMirror); |
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})(function(CodeMirror) { |
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"use strict"; |
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|
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CodeMirror.defineOption("selectionPointer", false, function(cm, val) { |
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var data = cm.state.selectionPointer; |
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if (data) { |
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CodeMirror.off(cm.getWrapperElement(), "mousemove", data.mousemove); |
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CodeMirror.off(cm.getWrapperElement(), "mouseout", data.mouseout); |
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CodeMirror.off(window, "scroll", data.windowScroll); |
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cm.off("cursorActivity", reset); |
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cm.off("scroll", reset); |
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cm.state.selectionPointer = null; |
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cm.display.lineDiv.style.cursor = ""; |
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} |
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if (val) { |
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data = cm.state.selectionPointer = { |
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value: typeof val == "string" ? val : "default", |
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mousemove: function(event) { mousemove(cm, event); }, |
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mouseout: function(event) { mouseout(cm, event); }, |
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windowScroll: function() { reset(cm); }, |
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rects: null, |
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mouseX: null, mouseY: null, |
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willUpdate: false |
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}; |
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CodeMirror.on(cm.getWrapperElement(), "mousemove", data.mousemove); |
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CodeMirror.on(cm.getWrapperElement(), "mouseout", data.mouseout); |
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CodeMirror.on(window, "scroll", data.windowScroll); |
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cm.on("cursorActivity", reset); |
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cm.on("scroll", reset); |
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} |
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}); |
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|
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function mousemove(cm, event) { |
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var data = cm.state.selectionPointer; |
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if (event.buttons == null ? event.which : event.buttons) { |
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data.mouseX = data.mouseY = null; |
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} else { |
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data.mouseX = event.clientX; |
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data.mouseY = event.clientY; |
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} |
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scheduleUpdate(cm); |
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} |
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|
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function mouseout(cm, event) { |
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if (!cm.getWrapperElement().contains(event.relatedTarget)) { |
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var data = cm.state.selectionPointer; |
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data.mouseX = data.mouseY = null; |
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scheduleUpdate(cm); |
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} |
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} |
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|
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function reset(cm) { |
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cm.state.selectionPointer.rects = null; |
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scheduleUpdate(cm); |
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} |
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|
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function scheduleUpdate(cm) { |
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if (!cm.state.selectionPointer.willUpdate) { |
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cm.state.selectionPointer.willUpdate = true; |
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setTimeout(function() { |
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update(cm); |
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cm.state.selectionPointer.willUpdate = false; |
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}, 50); |
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} |
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} |
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|
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function update(cm) { |
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var data = cm.state.selectionPointer; |
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if (!data) return; |
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if (data.rects == null && data.mouseX != null) { |
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data.rects = []; |
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if (cm.somethingSelected()) { |
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for (var sel = cm.display.selectionDiv.firstChild; sel; sel = sel.nextSibling) |
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data.rects.push(sel.getBoundingClientRect()); |
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} |
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} |
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var inside = false; |
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if (data.mouseX != null) for (var i = 0; i < data.rects.length; i++) { |
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var rect = data.rects[i]; |
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if (rect.left <= data.mouseX && rect.right >= data.mouseX && |
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rect.top <= data.mouseY && rect.bottom >= data.mouseY) |
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inside = true; |
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} |
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var cursor = inside ? data.value : ""; |
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if (cm.display.lineDiv.style.cursor != cursor) |
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cm.display.lineDiv.style.cursor = cursor; |
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} |
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}); |
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