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/*! |
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* perfect-scrollbar v1.4.0 |
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* (c) 2018 Hyunje Jun |
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* @license MIT |
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*/ |
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(function (global, factory) { |
| 7 |
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.PerfectScrollbar = factory()); |
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}(this, (function () { 'use strict'; |
| 11 |
|
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function get(element) { |
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return getComputedStyle(element); |
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} |
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|
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function set(element, obj) { |
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for (var key in obj) { |
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var val = obj[key]; |
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if (typeof val === 'number') { |
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val = val + "px"; |
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} |
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element.style[key] = val; |
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} |
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return element; |
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} |
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|
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function div(className) { |
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var div = document.createElement('div'); |
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div.className = className; |
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return div; |
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} |
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|
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var elMatches = |
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typeof Element !== 'undefined' && |
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(Element.prototype.matches || |
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Element.prototype.webkitMatchesSelector || |
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Element.prototype.mozMatchesSelector || |
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Element.prototype.msMatchesSelector); |
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|
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function matches(element, query) { |
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if (!elMatches) { |
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throw new Error('No element matching method supported'); |
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} |
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|
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return elMatches.call(element, query); |
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} |
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|
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function remove(element) { |
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if (element.remove) { |
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element.remove(); |
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} else { |
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if (element.parentNode) { |
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element.parentNode.removeChild(element); |
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} |
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} |
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} |
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|
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function queryChildren(element, selector) { |
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return Array.prototype.filter.call(element.children, function (child) { return matches(child, selector); } |
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); |
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} |
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|
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var cls = { |
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main: 'ps', |
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element: { |
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thumb: function (x) { return ("ps__thumb-" + x); }, |
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rail: function (x) { return ("ps__rail-" + x); }, |
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consuming: 'ps__child--consume', |
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}, |
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state: { |
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focus: 'ps--focus', |
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clicking: 'ps--clicking', |
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active: function (x) { return ("ps--active-" + x); }, |
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scrolling: function (x) { return ("ps--scrolling-" + x); }, |
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}, |
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}; |
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|
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/* |
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* Helper methods |
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*/ |
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var scrollingClassTimeout = { x: null, y: null }; |
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|
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function addScrollingClass(i, x) { |
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var classList = i.element.classList; |
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var className = cls.state.scrolling(x); |
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|
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if (classList.contains(className)) { |
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clearTimeout(scrollingClassTimeout[x]); |
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} else { |
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classList.add(className); |
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} |
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} |
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|
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function removeScrollingClass(i, x) { |
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scrollingClassTimeout[x] = setTimeout( |
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function () { return i.isAlive && i.element.classList.remove(cls.state.scrolling(x)); }, |
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i.settings.scrollingThreshold |
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); |
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} |
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|
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function setScrollingClassInstantly(i, x) { |
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addScrollingClass(i, x); |
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removeScrollingClass(i, x); |
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} |
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|
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var EventElement = function EventElement(element) { |
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this.element = element; |
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this.handlers = {}; |
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}; |
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|
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var prototypeAccessors = { isEmpty: { configurable: true } }; |
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|
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EventElement.prototype.bind = function bind (eventName, handler) { |
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if (typeof this.handlers[eventName] === 'undefined') { |
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this.handlers[eventName] = []; |
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} |
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this.handlers[eventName].push(handler); |
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this.element.addEventListener(eventName, handler, false); |
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}; |
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|
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EventElement.prototype.unbind = function unbind (eventName, target) { |
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var this$1 = this; |
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|
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this.handlers[eventName] = this.handlers[eventName].filter(function (handler) { |
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if (target && handler !== target) { |
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return true; |
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} |
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this$1.element.removeEventListener(eventName, handler, false); |
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return false; |
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}); |
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}; |
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|
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EventElement.prototype.unbindAll = function unbindAll () { |
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var this$1 = this; |
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|
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for (var name in this$1.handlers) { |
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this$1.unbind(name); |
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} |
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}; |
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|
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prototypeAccessors.isEmpty.get = function () { |
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var this$1 = this; |
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|
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return Object.keys(this.handlers).every( |
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function (key) { return this$1.handlers[key].length === 0; } |
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); |
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}; |
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|
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Object.defineProperties( EventElement.prototype, prototypeAccessors ); |
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|
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var EventManager = function EventManager() { |
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this.eventElements = []; |
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}; |
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|
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EventManager.prototype.eventElement = function eventElement (element) { |
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var ee = this.eventElements.filter(function (ee) { return ee.element === element; })[0]; |
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if (!ee) { |
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ee = new EventElement(element); |
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this.eventElements.push(ee); |
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} |
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return ee; |
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}; |
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|
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EventManager.prototype.bind = function bind (element, eventName, handler) { |
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this.eventElement(element).bind(eventName, handler); |
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}; |
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|
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EventManager.prototype.unbind = function unbind (element, eventName, handler) { |
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var ee = this.eventElement(element); |
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ee.unbind(eventName, handler); |
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|
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if (ee.isEmpty) { |
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// remove |
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this.eventElements.splice(this.eventElements.indexOf(ee), 1); |
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} |
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}; |
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|
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EventManager.prototype.unbindAll = function unbindAll () { |
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this.eventElements.forEach(function (e) { return e.unbindAll(); }); |
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this.eventElements = []; |
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}; |
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|
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EventManager.prototype.once = function once (element, eventName, handler) { |
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var ee = this.eventElement(element); |
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var onceHandler = function (evt) { |
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ee.unbind(eventName, onceHandler); |
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handler(evt); |
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}; |
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ee.bind(eventName, onceHandler); |
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}; |
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|
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function createEvent(name) { |
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if (typeof window.CustomEvent === 'function') { |
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return new CustomEvent(name); |
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} else { |
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var evt = document.createEvent('CustomEvent'); |
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evt.initCustomEvent(name, false, false, undefined); |
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return evt; |
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} |
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} |
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|
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var processScrollDiff = function( |
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i, |
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axis, |
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diff, |
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useScrollingClass, |
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forceFireReachEvent |
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) { |
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if ( useScrollingClass === void 0 ) useScrollingClass = true; |
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if ( forceFireReachEvent === void 0 ) forceFireReachEvent = false; |
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|
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var fields; |
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if (axis === 'top') { |
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fields = [ |
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'contentHeight', |
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'containerHeight', |
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'scrollTop', |
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'y', |
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'up', |
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'down' ]; |
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} else if (axis === 'left') { |
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fields = [ |
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'contentWidth', |
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'containerWidth', |
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'scrollLeft', |
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'x', |
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'left', |
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'right' ]; |
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} else { |
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throw new Error('A proper axis should be provided'); |
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} |
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|
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processScrollDiff$1(i, diff, fields, useScrollingClass, forceFireReachEvent); |
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}; |
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|
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function processScrollDiff$1( |
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i, |
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diff, |
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ref, |
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useScrollingClass, |
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forceFireReachEvent |
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) { |
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var contentHeight = ref[0]; |
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var containerHeight = ref[1]; |
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var scrollTop = ref[2]; |
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var y = ref[3]; |
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var up = ref[4]; |
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var down = ref[5]; |
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if ( useScrollingClass === void 0 ) useScrollingClass = true; |
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if ( forceFireReachEvent === void 0 ) forceFireReachEvent = false; |
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|
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var element = i.element; |
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|
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// reset reach |
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i.reach[y] = null; |
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|
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// 1 for subpixel rounding |
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if (element[scrollTop] < 1) { |
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i.reach[y] = 'start'; |
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} |
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|
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// 1 for subpixel rounding |
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if (element[scrollTop] > i[contentHeight] - i[containerHeight] - 1) { |
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i.reach[y] = 'end'; |
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} |
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|
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if (diff) { |
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element.dispatchEvent(createEvent(("ps-scroll-" + y))); |
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|
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if (diff < 0) { |
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element.dispatchEvent(createEvent(("ps-scroll-" + up))); |
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} else if (diff > 0) { |
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element.dispatchEvent(createEvent(("ps-scroll-" + down))); |
| 274 |
} |
| 275 |
|
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if (useScrollingClass) { |
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setScrollingClassInstantly(i, y); |
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} |
| 279 |
} |
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|
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if (i.reach[y] && (diff || forceFireReachEvent)) { |
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element.dispatchEvent(createEvent(("ps-" + y + "-reach-" + (i.reach[y])))); |
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} |
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} |
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|
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function toInt(x) { |
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return parseInt(x, 10) || 0; |
| 288 |
} |
| 289 |
|
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function isEditable(el) { |
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return ( |
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matches(el, 'input,[contenteditable]') || |
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matches(el, 'select,[contenteditable]') || |
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matches(el, 'textarea,[contenteditable]') || |
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matches(el, 'button,[contenteditable]') |
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); |
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} |
| 298 |
|
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function outerWidth(element) { |
| 300 |
var styles = get(element); |
| 301 |
return ( |
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toInt(styles.width) + |
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toInt(styles.paddingLeft) + |
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toInt(styles.paddingRight) + |
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toInt(styles.borderLeftWidth) + |
| 306 |
toInt(styles.borderRightWidth) |
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); |
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} |
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|
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var env = { |
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isWebKit: |
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typeof document !== 'undefined' && |
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'WebkitAppearance' in document.documentElement.style, |
| 314 |
supportsTouch: |
| 315 |
typeof window !== 'undefined' && |
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('ontouchstart' in window || |
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(window.DocumentTouch && document instanceof window.DocumentTouch)), |
| 318 |
supportsIePointer: |
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typeof navigator !== 'undefined' && navigator.msMaxTouchPoints, |
| 320 |
isChrome: |
| 321 |
typeof navigator !== 'undefined' && |
| 322 |
/Chrome/i.test(navigator && navigator.userAgent), |
| 323 |
}; |
| 324 |
|
| 325 |
var updateGeometry = function(i) { |
| 326 |
var element = i.element; |
| 327 |
var roundedScrollTop = Math.floor(element.scrollTop); |
| 328 |
|
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i.containerWidth = element.clientWidth; |
| 330 |
i.containerHeight = element.clientHeight; |
| 331 |
i.contentWidth = element.scrollWidth; |
| 332 |
i.contentHeight = element.scrollHeight; |
| 333 |
|
| 334 |
if (!element.contains(i.scrollbarXRail)) { |
| 335 |
// clean up and append |
| 336 |
queryChildren(element, cls.element.rail('x')).forEach(function (el) { return remove(el); } |
| 337 |
); |
| 338 |
element.appendChild(i.scrollbarXRail); |
| 339 |
} |
| 340 |
if (!element.contains(i.scrollbarYRail)) { |
| 341 |
// clean up and append |
| 342 |
queryChildren(element, cls.element.rail('y')).forEach(function (el) { return remove(el); } |
| 343 |
); |
| 344 |
element.appendChild(i.scrollbarYRail); |
| 345 |
} |
| 346 |
|
| 347 |
if ( |
| 348 |
!i.settings.suppressScrollX && |
| 349 |
i.containerWidth + i.settings.scrollXMarginOffset < i.contentWidth |
| 350 |
) { |
| 351 |
i.scrollbarXActive = true; |
| 352 |
i.railXWidth = i.containerWidth - i.railXMarginWidth; |
| 353 |
i.railXRatio = i.containerWidth / i.railXWidth; |
| 354 |
i.scrollbarXWidth = getThumbSize( |
| 355 |
i, |
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toInt(i.railXWidth * i.containerWidth / i.contentWidth) |
| 357 |
); |
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i.scrollbarXLeft = toInt( |
| 359 |
(i.negativeScrollAdjustment + element.scrollLeft) * |
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(i.railXWidth - i.scrollbarXWidth) / |
| 361 |
(i.contentWidth - i.containerWidth) |
| 362 |
); |
| 363 |
} else { |
| 364 |
i.scrollbarXActive = false; |
| 365 |
} |
| 366 |
|
| 367 |
if ( |
| 368 |
!i.settings.suppressScrollY && |
| 369 |
i.containerHeight + i.settings.scrollYMarginOffset < i.contentHeight |
| 370 |
) { |
| 371 |
i.scrollbarYActive = true; |
| 372 |
i.railYHeight = i.containerHeight - i.railYMarginHeight; |
| 373 |
i.railYRatio = i.containerHeight / i.railYHeight; |
| 374 |
i.scrollbarYHeight = getThumbSize( |
| 375 |
i, |
| 376 |
toInt(i.railYHeight * i.containerHeight / i.contentHeight) |
| 377 |
); |
| 378 |
i.scrollbarYTop = toInt( |
| 379 |
roundedScrollTop * |
| 380 |
(i.railYHeight - i.scrollbarYHeight) / |
| 381 |
(i.contentHeight - i.containerHeight) |
| 382 |
); |
| 383 |
} else { |
| 384 |
i.scrollbarYActive = false; |
| 385 |
} |
| 386 |
|
| 387 |
if (i.scrollbarXLeft >= i.railXWidth - i.scrollbarXWidth) { |
| 388 |
i.scrollbarXLeft = i.railXWidth - i.scrollbarXWidth; |
| 389 |
} |
| 390 |
if (i.scrollbarYTop >= i.railYHeight - i.scrollbarYHeight) { |
| 391 |
i.scrollbarYTop = i.railYHeight - i.scrollbarYHeight; |
| 392 |
} |
| 393 |
|
| 394 |
updateCss(element, i); |
| 395 |
|
| 396 |
if (i.scrollbarXActive) { |
| 397 |
element.classList.add(cls.state.active('x')); |
| 398 |
} else { |
| 399 |
element.classList.remove(cls.state.active('x')); |
| 400 |
i.scrollbarXWidth = 0; |
| 401 |
i.scrollbarXLeft = 0; |
| 402 |
element.scrollLeft = 0; |
| 403 |
} |
| 404 |
if (i.scrollbarYActive) { |
| 405 |
element.classList.add(cls.state.active('y')); |
| 406 |
} else { |
| 407 |
element.classList.remove(cls.state.active('y')); |
| 408 |
i.scrollbarYHeight = 0; |
| 409 |
i.scrollbarYTop = 0; |
| 410 |
element.scrollTop = 0; |
| 411 |
} |
| 412 |
}; |
| 413 |
|
| 414 |
function getThumbSize(i, thumbSize) { |
| 415 |
if (i.settings.minScrollbarLength) { |
| 416 |
thumbSize = Math.max(thumbSize, i.settings.minScrollbarLength); |
| 417 |
} |
| 418 |
if (i.settings.maxScrollbarLength) { |
| 419 |
thumbSize = Math.min(thumbSize, i.settings.maxScrollbarLength); |
| 420 |
} |
| 421 |
return thumbSize; |
| 422 |
} |
| 423 |
|
| 424 |
function updateCss(element, i) { |
| 425 |
var xRailOffset = { width: i.railXWidth }; |
| 426 |
var roundedScrollTop = Math.floor(element.scrollTop); |
| 427 |
|
| 428 |
if (i.isRtl) { |
| 429 |
xRailOffset.left = |
| 430 |
i.negativeScrollAdjustment + |
| 431 |
element.scrollLeft + |
| 432 |
i.containerWidth - |
| 433 |
i.contentWidth; |
| 434 |
} else { |
| 435 |
xRailOffset.left = element.scrollLeft; |
| 436 |
} |
| 437 |
if (i.isScrollbarXUsingBottom) { |
| 438 |
xRailOffset.bottom = i.scrollbarXBottom - roundedScrollTop; |
| 439 |
} else { |
| 440 |
xRailOffset.top = i.scrollbarXTop + roundedScrollTop; |
| 441 |
} |
| 442 |
set(i.scrollbarXRail, xRailOffset); |
| 443 |
|
| 444 |
var yRailOffset = { top: roundedScrollTop, height: i.railYHeight }; |
| 445 |
if (i.isScrollbarYUsingRight) { |
| 446 |
if (i.isRtl) { |
| 447 |
yRailOffset.right = |
| 448 |
i.contentWidth - |
| 449 |
(i.negativeScrollAdjustment + element.scrollLeft) - |
| 450 |
i.scrollbarYRight - |
| 451 |
i.scrollbarYOuterWidth; |
| 452 |
} else { |
| 453 |
yRailOffset.right = i.scrollbarYRight - element.scrollLeft; |
| 454 |
} |
| 455 |
} else { |
| 456 |
if (i.isRtl) { |
| 457 |
yRailOffset.left = |
| 458 |
i.negativeScrollAdjustment + |
| 459 |
element.scrollLeft + |
| 460 |
i.containerWidth * 2 - |
| 461 |
i.contentWidth - |
| 462 |
i.scrollbarYLeft - |
| 463 |
i.scrollbarYOuterWidth; |
| 464 |
} else { |
| 465 |
yRailOffset.left = i.scrollbarYLeft + element.scrollLeft; |
| 466 |
} |
| 467 |
} |
| 468 |
set(i.scrollbarYRail, yRailOffset); |
| 469 |
|
| 470 |
set(i.scrollbarX, { |
| 471 |
left: i.scrollbarXLeft, |
| 472 |
width: i.scrollbarXWidth - i.railBorderXWidth, |
| 473 |
}); |
| 474 |
set(i.scrollbarY, { |
| 475 |
top: i.scrollbarYTop, |
| 476 |
height: i.scrollbarYHeight - i.railBorderYWidth, |
| 477 |
}); |
| 478 |
} |
| 479 |
|
| 480 |
var clickRail = function(i) { |
| 481 |
i.event.bind(i.scrollbarY, 'mousedown', function (e) { return e.stopPropagation(); }); |
| 482 |
i.event.bind(i.scrollbarYRail, 'mousedown', function (e) { |
| 483 |
var positionTop = |
| 484 |
e.pageY - |
| 485 |
window.pageYOffset - |
| 486 |
i.scrollbarYRail.getBoundingClientRect().top; |
| 487 |
var direction = positionTop > i.scrollbarYTop ? 1 : -1; |
| 488 |
|
| 489 |
i.element.scrollTop += direction * i.containerHeight; |
| 490 |
updateGeometry(i); |
| 491 |
|
| 492 |
e.stopPropagation(); |
| 493 |
}); |
| 494 |
|
| 495 |
i.event.bind(i.scrollbarX, 'mousedown', function (e) { return e.stopPropagation(); }); |
| 496 |
i.event.bind(i.scrollbarXRail, 'mousedown', function (e) { |
| 497 |
var positionLeft = |
| 498 |
e.pageX - |
| 499 |
window.pageXOffset - |
| 500 |
i.scrollbarXRail.getBoundingClientRect().left; |
| 501 |
var direction = positionLeft > i.scrollbarXLeft ? 1 : -1; |
| 502 |
|
| 503 |
i.element.scrollLeft += direction * i.containerWidth; |
| 504 |
updateGeometry(i); |
| 505 |
|
| 506 |
e.stopPropagation(); |
| 507 |
}); |
| 508 |
}; |
| 509 |
|
| 510 |
var dragThumb = function(i) { |
| 511 |
bindMouseScrollHandler(i, [ |
| 512 |
'containerWidth', |
| 513 |
'contentWidth', |
| 514 |
'pageX', |
| 515 |
'railXWidth', |
| 516 |
'scrollbarX', |
| 517 |
'scrollbarXWidth', |
| 518 |
'scrollLeft', |
| 519 |
'x', |
| 520 |
'scrollbarXRail' ]); |
| 521 |
bindMouseScrollHandler(i, [ |
| 522 |
'containerHeight', |
| 523 |
'contentHeight', |
| 524 |
'pageY', |
| 525 |
'railYHeight', |
| 526 |
'scrollbarY', |
| 527 |
'scrollbarYHeight', |
| 528 |
'scrollTop', |
| 529 |
'y', |
| 530 |
'scrollbarYRail' ]); |
| 531 |
}; |
| 532 |
|
| 533 |
function bindMouseScrollHandler( |
| 534 |
i, |
| 535 |
ref |
| 536 |
) { |
| 537 |
var containerHeight = ref[0]; |
| 538 |
var contentHeight = ref[1]; |
| 539 |
var pageY = ref[2]; |
| 540 |
var railYHeight = ref[3]; |
| 541 |
var scrollbarY = ref[4]; |
| 542 |
var scrollbarYHeight = ref[5]; |
| 543 |
var scrollTop = ref[6]; |
| 544 |
var y = ref[7]; |
| 545 |
var scrollbarYRail = ref[8]; |
| 546 |
|
| 547 |
var element = i.element; |
| 548 |
|
| 549 |
var startingScrollTop = null; |
| 550 |
var startingMousePageY = null; |
| 551 |
var scrollBy = null; |
| 552 |
|
| 553 |
function mouseMoveHandler(e) { |
| 554 |
element[scrollTop] = |
| 555 |
startingScrollTop + scrollBy * (e[pageY] - startingMousePageY); |
| 556 |
addScrollingClass(i, y); |
| 557 |
updateGeometry(i); |
| 558 |
|
| 559 |
e.stopPropagation(); |
| 560 |
e.preventDefault(); |
| 561 |
} |
| 562 |
|
| 563 |
function mouseUpHandler() { |
| 564 |
removeScrollingClass(i, y); |
| 565 |
i[scrollbarYRail].classList.remove(cls.state.clicking); |
| 566 |
i.event.unbind(i.ownerDocument, 'mousemove', mouseMoveHandler); |
| 567 |
} |
| 568 |
|
| 569 |
i.event.bind(i[scrollbarY], 'mousedown', function (e) { |
| 570 |
startingScrollTop = element[scrollTop]; |
| 571 |
startingMousePageY = e[pageY]; |
| 572 |
scrollBy = |
| 573 |
(i[contentHeight] - i[containerHeight]) / |
| 574 |
(i[railYHeight] - i[scrollbarYHeight]); |
| 575 |
|
| 576 |
i.event.bind(i.ownerDocument, 'mousemove', mouseMoveHandler); |
| 577 |
i.event.once(i.ownerDocument, 'mouseup', mouseUpHandler); |
| 578 |
|
| 579 |
i[scrollbarYRail].classList.add(cls.state.clicking); |
| 580 |
|
| 581 |
e.stopPropagation(); |
| 582 |
e.preventDefault(); |
| 583 |
}); |
| 584 |
} |
| 585 |
|
| 586 |
var keyboard = function(i) { |
| 587 |
var element = i.element; |
| 588 |
|
| 589 |
var elementHovered = function () { return matches(element, ':hover'); }; |
| 590 |
var scrollbarFocused = function () { return matches(i.scrollbarX, ':focus') || matches(i.scrollbarY, ':focus'); }; |
| 591 |
|
| 592 |
function shouldPreventDefault(deltaX, deltaY) { |
| 593 |
var scrollTop = Math.floor(element.scrollTop); |
| 594 |
if (deltaX === 0) { |
| 595 |
if (!i.scrollbarYActive) { |
| 596 |
return false; |
| 597 |
} |
| 598 |
if ( |
| 599 |
(scrollTop === 0 && deltaY > 0) || |
| 600 |
(scrollTop >= i.contentHeight - i.containerHeight && deltaY < 0) |
| 601 |
) { |
| 602 |
return !i.settings.wheelPropagation; |
| 603 |
} |
| 604 |
} |
| 605 |
|
| 606 |
var scrollLeft = element.scrollLeft; |
| 607 |
if (deltaY === 0) { |
| 608 |
if (!i.scrollbarXActive) { |
| 609 |
return false; |
| 610 |
} |
| 611 |
if ( |
| 612 |
(scrollLeft === 0 && deltaX < 0) || |
| 613 |
(scrollLeft >= i.contentWidth - i.containerWidth && deltaX > 0) |
| 614 |
) { |
| 615 |
return !i.settings.wheelPropagation; |
| 616 |
} |
| 617 |
} |
| 618 |
return true; |
| 619 |
} |
| 620 |
|
| 621 |
i.event.bind(i.ownerDocument, 'keydown', function (e) { |
| 622 |
if ( |
| 623 |
(e.isDefaultPrevented && e.isDefaultPrevented()) || |
| 624 |
e.defaultPrevented |
| 625 |
) { |
| 626 |
return; |
| 627 |
} |
| 628 |
|
| 629 |
if (!elementHovered() && !scrollbarFocused()) { |
| 630 |
return; |
| 631 |
} |
| 632 |
|
| 633 |
var activeElement = document.activeElement |
| 634 |
? document.activeElement |
| 635 |
: i.ownerDocument.activeElement; |
| 636 |
if (activeElement) { |
| 637 |
if (activeElement.tagName === 'IFRAME') { |
| 638 |
activeElement = activeElement.contentDocument.activeElement; |
| 639 |
} else { |
| 640 |
// go deeper if element is a webcomponent |
| 641 |
while (activeElement.shadowRoot) { |
| 642 |
activeElement = activeElement.shadowRoot.activeElement; |
| 643 |
} |
| 644 |
} |
| 645 |
if (isEditable(activeElement)) { |
| 646 |
return; |
| 647 |
} |
| 648 |
} |
| 649 |
|
| 650 |
var deltaX = 0; |
| 651 |
var deltaY = 0; |
| 652 |
|
| 653 |
switch (e.which) { |
| 654 |
case 37: // left |
| 655 |
if (e.metaKey) { |
| 656 |
deltaX = -i.contentWidth; |
| 657 |
} else if (e.altKey) { |
| 658 |
deltaX = -i.containerWidth; |
| 659 |
} else { |
| 660 |
deltaX = -30; |
| 661 |
} |
| 662 |
break; |
| 663 |
case 38: // up |
| 664 |
if (e.metaKey) { |
| 665 |
deltaY = i.contentHeight; |
| 666 |
} else if (e.altKey) { |
| 667 |
deltaY = i.containerHeight; |
| 668 |
} else { |
| 669 |
deltaY = 30; |
| 670 |
} |
| 671 |
break; |
| 672 |
case 39: // right |
| 673 |
if (e.metaKey) { |
| 674 |
deltaX = i.contentWidth; |
| 675 |
} else if (e.altKey) { |
| 676 |
deltaX = i.containerWidth; |
| 677 |
} else { |
| 678 |
deltaX = 30; |
| 679 |
} |
| 680 |
break; |
| 681 |
case 40: // down |
| 682 |
if (e.metaKey) { |
| 683 |
deltaY = -i.contentHeight; |
| 684 |
} else if (e.altKey) { |
| 685 |
deltaY = -i.containerHeight; |
| 686 |
} else { |
| 687 |
deltaY = -30; |
| 688 |
} |
| 689 |
break; |
| 690 |
case 32: // space bar |
| 691 |
if (e.shiftKey) { |
| 692 |
deltaY = i.containerHeight; |
| 693 |
} else { |
| 694 |
deltaY = -i.containerHeight; |
| 695 |
} |
| 696 |
break; |
| 697 |
case 33: // page up |
| 698 |
deltaY = i.containerHeight; |
| 699 |
break; |
| 700 |
case 34: // page down |
| 701 |
deltaY = -i.containerHeight; |
| 702 |
break; |
| 703 |
case 36: // home |
| 704 |
deltaY = i.contentHeight; |
| 705 |
break; |
| 706 |
case 35: // end |
| 707 |
deltaY = -i.contentHeight; |
| 708 |
break; |
| 709 |
default: |
| 710 |
return; |
| 711 |
} |
| 712 |
|
| 713 |
if (i.settings.suppressScrollX && deltaX !== 0) { |
| 714 |
return; |
| 715 |
} |
| 716 |
if (i.settings.suppressScrollY && deltaY !== 0) { |
| 717 |
return; |
| 718 |
} |
| 719 |
|
| 720 |
element.scrollTop -= deltaY; |
| 721 |
element.scrollLeft += deltaX; |
| 722 |
updateGeometry(i); |
| 723 |
|
| 724 |
if (shouldPreventDefault(deltaX, deltaY)) { |
| 725 |
e.preventDefault(); |
| 726 |
} |
| 727 |
}); |
| 728 |
}; |
| 729 |
|
| 730 |
var wheel = function(i) { |
| 731 |
var element = i.element; |
| 732 |
|
| 733 |
function shouldPreventDefault(deltaX, deltaY) { |
| 734 |
var roundedScrollTop = Math.floor(element.scrollTop); |
| 735 |
var isTop = element.scrollTop === 0; |
| 736 |
var isBottom = |
| 737 |
roundedScrollTop + element.offsetHeight === element.scrollHeight; |
| 738 |
var isLeft = element.scrollLeft === 0; |
| 739 |
var isRight = |
| 740 |
element.scrollLeft + element.offsetWidth === element.scrollWidth; |
| 741 |
|
| 742 |
var hitsBound; |
| 743 |
|
| 744 |
// pick axis with primary direction |
| 745 |
if (Math.abs(deltaY) > Math.abs(deltaX)) { |
| 746 |
hitsBound = isTop || isBottom; |
| 747 |
} else { |
| 748 |
hitsBound = isLeft || isRight; |
| 749 |
} |
| 750 |
|
| 751 |
return hitsBound ? !i.settings.wheelPropagation : true; |
| 752 |
} |
| 753 |
|
| 754 |
function getDeltaFromEvent(e) { |
| 755 |
var deltaX = e.deltaX; |
| 756 |
var deltaY = -1 * e.deltaY; |
| 757 |
|
| 758 |
if (typeof deltaX === 'undefined' || typeof deltaY === 'undefined') { |
| 759 |
// OS X Safari |
| 760 |
deltaX = -1 * e.wheelDeltaX / 6; |
| 761 |
deltaY = e.wheelDeltaY / 6; |
| 762 |
} |
| 763 |
|
| 764 |
if (e.deltaMode && e.deltaMode === 1) { |
| 765 |
// Firefox in deltaMode 1: Line scrolling |
| 766 |
deltaX *= 10; |
| 767 |
deltaY *= 10; |
| 768 |
} |
| 769 |
|
| 770 |
if (deltaX !== deltaX && deltaY !== deltaY /* NaN checks */) { |
| 771 |
// IE in some mouse drivers |
| 772 |
deltaX = 0; |
| 773 |
deltaY = e.wheelDelta; |
| 774 |
} |
| 775 |
|
| 776 |
if (e.shiftKey) { |
| 777 |
// reverse axis with shift key |
| 778 |
return [-deltaY, -deltaX]; |
| 779 |
} |
| 780 |
return [deltaX, deltaY]; |
| 781 |
} |
| 782 |
|
| 783 |
function shouldBeConsumedByChild(target, deltaX, deltaY) { |
| 784 |
// FIXME: this is a workaround for <select> issue in FF and IE #571 |
| 785 |
if (!env.isWebKit && element.querySelector('select:focus')) { |
| 786 |
return true; |
| 787 |
} |
| 788 |
|
| 789 |
if (!element.contains(target)) { |
| 790 |
return false; |
| 791 |
} |
| 792 |
|
| 793 |
var cursor = target; |
| 794 |
|
| 795 |
while (cursor && cursor !== element) { |
| 796 |
if (cursor.classList.contains(cls.element.consuming)) { |
| 797 |
return true; |
| 798 |
} |
| 799 |
|
| 800 |
var style = get(cursor); |
| 801 |
var overflow = [style.overflow, style.overflowX, style.overflowY].join( |
| 802 |
'' |
| 803 |
); |
| 804 |
|
| 805 |
// if scrollable |
| 806 |
if (overflow.match(/(scroll|auto)/)) { |
| 807 |
var maxScrollTop = cursor.scrollHeight - cursor.clientHeight; |
| 808 |
if (maxScrollTop > 0) { |
| 809 |
if ( |
| 810 |
!(cursor.scrollTop === 0 && deltaY > 0) && |
| 811 |
!(cursor.scrollTop === maxScrollTop && deltaY < 0) |
| 812 |
) { |
| 813 |
return true; |
| 814 |
} |
| 815 |
} |
| 816 |
var maxScrollLeft = cursor.scrollWidth - cursor.clientWidth; |
| 817 |
if (maxScrollLeft > 0) { |
| 818 |
if ( |
| 819 |
!(cursor.scrollLeft === 0 && deltaX < 0) && |
| 820 |
!(cursor.scrollLeft === maxScrollLeft && deltaX > 0) |
| 821 |
) { |
| 822 |
return true; |
| 823 |
} |
| 824 |
} |
| 825 |
} |
| 826 |
|
| 827 |
cursor = cursor.parentNode; |
| 828 |
} |
| 829 |
|
| 830 |
return false; |
| 831 |
} |
| 832 |
|
| 833 |
function mousewheelHandler(e) { |
| 834 |
var ref = getDeltaFromEvent(e); |
| 835 |
var deltaX = ref[0]; |
| 836 |
var deltaY = ref[1]; |
| 837 |
|
| 838 |
if (shouldBeConsumedByChild(e.target, deltaX, deltaY)) { |
| 839 |
return; |
| 840 |
} |
| 841 |
|
| 842 |
var shouldPrevent = false; |
| 843 |
if (!i.settings.useBothWheelAxes) { |
| 844 |
// deltaX will only be used for horizontal scrolling and deltaY will |
| 845 |
// only be used for vertical scrolling - this is the default |
| 846 |
element.scrollTop -= deltaY * i.settings.wheelSpeed; |
| 847 |
element.scrollLeft += deltaX * i.settings.wheelSpeed; |
| 848 |
} else if (i.scrollbarYActive && !i.scrollbarXActive) { |
| 849 |
// only vertical scrollbar is active and useBothWheelAxes option is |
| 850 |
// active, so let's scroll vertical bar using both mouse wheel axes |
| 851 |
if (deltaY) { |
| 852 |
element.scrollTop -= deltaY * i.settings.wheelSpeed; |
| 853 |
} else { |
| 854 |
element.scrollTop += deltaX * i.settings.wheelSpeed; |
| 855 |
} |
| 856 |
shouldPrevent = true; |
| 857 |
} else if (i.scrollbarXActive && !i.scrollbarYActive) { |
| 858 |
// useBothWheelAxes and only horizontal bar is active, so use both |
| 859 |
// wheel axes for horizontal bar |
| 860 |
if (deltaX) { |
| 861 |
element.scrollLeft += deltaX * i.settings.wheelSpeed; |
| 862 |
} else { |
| 863 |
element.scrollLeft -= deltaY * i.settings.wheelSpeed; |
| 864 |
} |
| 865 |
shouldPrevent = true; |
| 866 |
} |
| 867 |
|
| 868 |
updateGeometry(i); |
| 869 |
|
| 870 |
shouldPrevent = shouldPrevent || shouldPreventDefault(deltaX, deltaY); |
| 871 |
if (shouldPrevent && !e.ctrlKey) { |
| 872 |
e.stopPropagation(); |
| 873 |
e.preventDefault(); |
| 874 |
} |
| 875 |
} |
| 876 |
|
| 877 |
if (typeof window.onwheel !== 'undefined') { |
| 878 |
i.event.bind(element, 'wheel', mousewheelHandler); |
| 879 |
} else if (typeof window.onmousewheel !== 'undefined') { |
| 880 |
i.event.bind(element, 'mousewheel', mousewheelHandler); |
| 881 |
} |
| 882 |
}; |
| 883 |
|
| 884 |
var touch = function(i) { |
| 885 |
if (!env.supportsTouch && !env.supportsIePointer) { |
| 886 |
return; |
| 887 |
} |
| 888 |
|
| 889 |
var element = i.element; |
| 890 |
|
| 891 |
function shouldPrevent(deltaX, deltaY) { |
| 892 |
var scrollTop = Math.floor(element.scrollTop); |
| 893 |
var scrollLeft = element.scrollLeft; |
| 894 |
var magnitudeX = Math.abs(deltaX); |
| 895 |
var magnitudeY = Math.abs(deltaY); |
| 896 |
|
| 897 |
if (magnitudeY > magnitudeX) { |
| 898 |
// user is perhaps trying to swipe up/down the page |
| 899 |
|
| 900 |
if ( |
| 901 |
(deltaY < 0 && scrollTop === i.contentHeight - i.containerHeight) || |
| 902 |
(deltaY > 0 && scrollTop === 0) |
| 903 |
) { |
| 904 |
// set prevent for mobile Chrome refresh |
| 905 |
return window.scrollY === 0 && deltaY > 0 && env.isChrome; |
| 906 |
} |
| 907 |
} else if (magnitudeX > magnitudeY) { |
| 908 |
// user is perhaps trying to swipe left/right across the page |
| 909 |
|
| 910 |
if ( |
| 911 |
(deltaX < 0 && scrollLeft === i.contentWidth - i.containerWidth) || |
| 912 |
(deltaX > 0 && scrollLeft === 0) |
| 913 |
) { |
| 914 |
return true; |
| 915 |
} |
| 916 |
} |
| 917 |
|
| 918 |
return true; |
| 919 |
} |
| 920 |
|
| 921 |
function applyTouchMove(differenceX, differenceY) { |
| 922 |
element.scrollTop -= differenceY; |
| 923 |
element.scrollLeft -= differenceX; |
| 924 |
|
| 925 |
updateGeometry(i); |
| 926 |
} |
| 927 |
|
| 928 |
var startOffset = {}; |
| 929 |
var startTime = 0; |
| 930 |
var speed = {}; |
| 931 |
var easingLoop = null; |
| 932 |
|
| 933 |
function getTouch(e) { |
| 934 |
if (e.targetTouches) { |
| 935 |
return e.targetTouches[0]; |
| 936 |
} else { |
| 937 |
// Maybe IE pointer |
| 938 |
return e; |
| 939 |
} |
| 940 |
} |
| 941 |
|
| 942 |
function shouldHandle(e) { |
| 943 |
if (e.pointerType && e.pointerType === 'pen' && e.buttons === 0) { |
| 944 |
return false; |
| 945 |
} |
| 946 |
if (e.targetTouches && e.targetTouches.length === 1) { |
| 947 |
return true; |
| 948 |
} |
| 949 |
if ( |
| 950 |
e.pointerType && |
| 951 |
e.pointerType !== 'mouse' && |
| 952 |
e.pointerType !== e.MSPOINTER_TYPE_MOUSE |
| 953 |
) { |
| 954 |
return true; |
| 955 |
} |
| 956 |
return false; |
| 957 |
} |
| 958 |
|
| 959 |
function touchStart(e) { |
| 960 |
if (!shouldHandle(e)) { |
| 961 |
return; |
| 962 |
} |
| 963 |
|
| 964 |
var touch = getTouch(e); |
| 965 |
|
| 966 |
startOffset.pageX = touch.pageX; |
| 967 |
startOffset.pageY = touch.pageY; |
| 968 |
|
| 969 |
startTime = new Date().getTime(); |
| 970 |
|
| 971 |
if (easingLoop !== null) { |
| 972 |
clearInterval(easingLoop); |
| 973 |
} |
| 974 |
} |
| 975 |
|
| 976 |
function shouldBeConsumedByChild(target, deltaX, deltaY) { |
| 977 |
if (!element.contains(target)) { |
| 978 |
return false; |
| 979 |
} |
| 980 |
|
| 981 |
var cursor = target; |
| 982 |
|
| 983 |
while (cursor && cursor !== element) { |
| 984 |
if (cursor.classList.contains(cls.element.consuming)) { |
| 985 |
return true; |
| 986 |
} |
| 987 |
|
| 988 |
var style = get(cursor); |
| 989 |
var overflow = [style.overflow, style.overflowX, style.overflowY].join( |
| 990 |
'' |
| 991 |
); |
| 992 |
|
| 993 |
// if scrollable |
| 994 |
if (overflow.match(/(scroll|auto)/)) { |
| 995 |
var maxScrollTop = cursor.scrollHeight - cursor.clientHeight; |
| 996 |
if (maxScrollTop > 0) { |
| 997 |
if ( |
| 998 |
!(cursor.scrollTop === 0 && deltaY > 0) && |
| 999 |
!(cursor.scrollTop === maxScrollTop && deltaY < 0) |
| 1000 |
) { |
| 1001 |
return true; |
| 1002 |
} |
| 1003 |
} |
| 1004 |
var maxScrollLeft = cursor.scrollLeft - cursor.clientWidth; |
| 1005 |
if (maxScrollLeft > 0) { |
| 1006 |
if ( |
| 1007 |
!(cursor.scrollLeft === 0 && deltaX < 0) && |
| 1008 |
!(cursor.scrollLeft === maxScrollLeft && deltaX > 0) |
| 1009 |
) { |
| 1010 |
return true; |
| 1011 |
} |
| 1012 |
} |
| 1013 |
} |
| 1014 |
|
| 1015 |
cursor = cursor.parentNode; |
| 1016 |
} |
| 1017 |
|
| 1018 |
return false; |
| 1019 |
} |
| 1020 |
|
| 1021 |
function touchMove(e) { |
| 1022 |
if (shouldHandle(e)) { |
| 1023 |
var touch = getTouch(e); |
| 1024 |
|
| 1025 |
var currentOffset = { pageX: touch.pageX, pageY: touch.pageY }; |
| 1026 |
|
| 1027 |
var differenceX = currentOffset.pageX - startOffset.pageX; |
| 1028 |
var differenceY = currentOffset.pageY - startOffset.pageY; |
| 1029 |
|
| 1030 |
if (shouldBeConsumedByChild(e.target, differenceX, differenceY)) { |
| 1031 |
return; |
| 1032 |
} |
| 1033 |
|
| 1034 |
applyTouchMove(differenceX, differenceY); |
| 1035 |
startOffset = currentOffset; |
| 1036 |
|
| 1037 |
var currentTime = new Date().getTime(); |
| 1038 |
|
| 1039 |
var timeGap = currentTime - startTime; |
| 1040 |
if (timeGap > 0) { |
| 1041 |
speed.x = differenceX / timeGap; |
| 1042 |
speed.y = differenceY / timeGap; |
| 1043 |
startTime = currentTime; |
| 1044 |
} |
| 1045 |
|
| 1046 |
if (shouldPrevent(differenceX, differenceY)) { |
| 1047 |
e.preventDefault(); |
| 1048 |
} |
| 1049 |
} |
| 1050 |
} |
| 1051 |
function touchEnd() { |
| 1052 |
if (i.settings.swipeEasing) { |
| 1053 |
clearInterval(easingLoop); |
| 1054 |
easingLoop = setInterval(function() { |
| 1055 |
if (i.isInitialized) { |
| 1056 |
clearInterval(easingLoop); |
| 1057 |
return; |
| 1058 |
} |
| 1059 |
|
| 1060 |
if (!speed.x && !speed.y) { |
| 1061 |
clearInterval(easingLoop); |
| 1062 |
return; |
| 1063 |
} |
| 1064 |
|
| 1065 |
if (Math.abs(speed.x) < 0.01 && Math.abs(speed.y) < 0.01) { |
| 1066 |
clearInterval(easingLoop); |
| 1067 |
return; |
| 1068 |
} |
| 1069 |
|
| 1070 |
applyTouchMove(speed.x * 30, speed.y * 30); |
| 1071 |
|
| 1072 |
speed.x *= 0.8; |
| 1073 |
speed.y *= 0.8; |
| 1074 |
}, 10); |
| 1075 |
} |
| 1076 |
} |
| 1077 |
|
| 1078 |
if (env.supportsTouch) { |
| 1079 |
i.event.bind(element, 'touchstart', touchStart); |
| 1080 |
i.event.bind(element, 'touchmove', touchMove); |
| 1081 |
i.event.bind(element, 'touchend', touchEnd); |
| 1082 |
} else if (env.supportsIePointer) { |
| 1083 |
if (window.PointerEvent) { |
| 1084 |
i.event.bind(element, 'pointerdown', touchStart); |
| 1085 |
i.event.bind(element, 'pointermove', touchMove); |
| 1086 |
i.event.bind(element, 'pointerup', touchEnd); |
| 1087 |
} else if (window.MSPointerEvent) { |
| 1088 |
i.event.bind(element, 'MSPointerDown', touchStart); |
| 1089 |
i.event.bind(element, 'MSPointerMove', touchMove); |
| 1090 |
i.event.bind(element, 'MSPointerUp', touchEnd); |
| 1091 |
} |
| 1092 |
} |
| 1093 |
}; |
| 1094 |
|
| 1095 |
var defaultSettings = function () { return ({ |
| 1096 |
handlers: ['click-rail', 'drag-thumb', 'keyboard', 'wheel', 'touch'], |
| 1097 |
maxScrollbarLength: null, |
| 1098 |
minScrollbarLength: null, |
| 1099 |
scrollingThreshold: 1000, |
| 1100 |
scrollXMarginOffset: 0, |
| 1101 |
scrollYMarginOffset: 0, |
| 1102 |
suppressScrollX: false, |
| 1103 |
suppressScrollY: false, |
| 1104 |
swipeEasing: true, |
| 1105 |
useBothWheelAxes: false, |
| 1106 |
wheelPropagation: true, |
| 1107 |
wheelSpeed: 1, |
| 1108 |
}); }; |
| 1109 |
|
| 1110 |
var handlers = { |
| 1111 |
'click-rail': clickRail, |
| 1112 |
'drag-thumb': dragThumb, |
| 1113 |
keyboard: keyboard, |
| 1114 |
wheel: wheel, |
| 1115 |
touch: touch, |
| 1116 |
}; |
| 1117 |
|
| 1118 |
var PerfectScrollbar = function PerfectScrollbar(element, userSettings) { |
| 1119 |
var this$1 = this; |
| 1120 |
if ( userSettings === void 0 ) userSettings = {}; |
| 1121 |
|
| 1122 |
if (typeof element === 'string') { |
| 1123 |
element = document.querySelector(element); |
| 1124 |
} |
| 1125 |
|
| 1126 |
if (!element || !element.nodeName) { |
| 1127 |
throw new Error('no element is specified to initialize PerfectScrollbar'); |
| 1128 |
} |
| 1129 |
|
| 1130 |
this.element = element; |
| 1131 |
|
| 1132 |
element.classList.add(cls.main); |
| 1133 |
|
| 1134 |
this.settings = defaultSettings(); |
| 1135 |
for (var key in userSettings) { |
| 1136 |
this$1.settings[key] = userSettings[key]; |
| 1137 |
} |
| 1138 |
|
| 1139 |
this.containerWidth = null; |
| 1140 |
this.containerHeight = null; |
| 1141 |
this.contentWidth = null; |
| 1142 |
this.contentHeight = null; |
| 1143 |
|
| 1144 |
var focus = function () { return element.classList.add(cls.state.focus); }; |
| 1145 |
var blur = function () { return element.classList.remove(cls.state.focus); }; |
| 1146 |
|
| 1147 |
this.isRtl = get(element).direction === 'rtl'; |
| 1148 |
this.isNegativeScroll = (function () { |
| 1149 |
var originalScrollLeft = element.scrollLeft; |
| 1150 |
var result = null; |
| 1151 |
element.scrollLeft = -1; |
| 1152 |
result = element.scrollLeft < 0; |
| 1153 |
element.scrollLeft = originalScrollLeft; |
| 1154 |
return result; |
| 1155 |
})(); |
| 1156 |
this.negativeScrollAdjustment = this.isNegativeScroll |
| 1157 |
? element.scrollWidth - element.clientWidth |
| 1158 |
: 0; |
| 1159 |
this.event = new EventManager(); |
| 1160 |
this.ownerDocument = element.ownerDocument || document; |
| 1161 |
|
| 1162 |
this.scrollbarXRail = div(cls.element.rail('x')); |
| 1163 |
element.appendChild(this.scrollbarXRail); |
| 1164 |
this.scrollbarX = div(cls.element.thumb('x')); |
| 1165 |
this.scrollbarXRail.appendChild(this.scrollbarX); |
| 1166 |
this.scrollbarX.setAttribute('tabindex', 0); |
| 1167 |
this.event.bind(this.scrollbarX, 'focus', focus); |
| 1168 |
this.event.bind(this.scrollbarX, 'blur', blur); |
| 1169 |
this.scrollbarXActive = null; |
| 1170 |
this.scrollbarXWidth = null; |
| 1171 |
this.scrollbarXLeft = null; |
| 1172 |
var railXStyle = get(this.scrollbarXRail); |
| 1173 |
this.scrollbarXBottom = parseInt(railXStyle.bottom, 10); |
| 1174 |
if (isNaN(this.scrollbarXBottom)) { |
| 1175 |
this.isScrollbarXUsingBottom = false; |
| 1176 |
this.scrollbarXTop = toInt(railXStyle.top); |
| 1177 |
} else { |
| 1178 |
this.isScrollbarXUsingBottom = true; |
| 1179 |
} |
| 1180 |
this.railBorderXWidth = |
| 1181 |
toInt(railXStyle.borderLeftWidth) + toInt(railXStyle.borderRightWidth); |
| 1182 |
// Set rail to display:block to calculate margins |
| 1183 |
set(this.scrollbarXRail, { display: 'block' }); |
| 1184 |
this.railXMarginWidth = |
| 1185 |
toInt(railXStyle.marginLeft) + toInt(railXStyle.marginRight); |
| 1186 |
set(this.scrollbarXRail, { display: '' }); |
| 1187 |
this.railXWidth = null; |
| 1188 |
this.railXRatio = null; |
| 1189 |
|
| 1190 |
this.scrollbarYRail = div(cls.element.rail('y')); |
| 1191 |
element.appendChild(this.scrollbarYRail); |
| 1192 |
this.scrollbarY = div(cls.element.thumb('y')); |
| 1193 |
this.scrollbarYRail.appendChild(this.scrollbarY); |
| 1194 |
this.scrollbarY.setAttribute('tabindex', 0); |
| 1195 |
this.event.bind(this.scrollbarY, 'focus', focus); |
| 1196 |
this.event.bind(this.scrollbarY, 'blur', blur); |
| 1197 |
this.scrollbarYActive = null; |
| 1198 |
this.scrollbarYHeight = null; |
| 1199 |
this.scrollbarYTop = null; |
| 1200 |
var railYStyle = get(this.scrollbarYRail); |
| 1201 |
this.scrollbarYRight = parseInt(railYStyle.right, 10); |
| 1202 |
if (isNaN(this.scrollbarYRight)) { |
| 1203 |
this.isScrollbarYUsingRight = false; |
| 1204 |
this.scrollbarYLeft = toInt(railYStyle.left); |
| 1205 |
} else { |
| 1206 |
this.isScrollbarYUsingRight = true; |
| 1207 |
} |
| 1208 |
this.scrollbarYOuterWidth = this.isRtl ? outerWidth(this.scrollbarY) : null; |
| 1209 |
this.railBorderYWidth = |
| 1210 |
toInt(railYStyle.borderTopWidth) + toInt(railYStyle.borderBottomWidth); |
| 1211 |
set(this.scrollbarYRail, { display: 'block' }); |
| 1212 |
this.railYMarginHeight = |
| 1213 |
toInt(railYStyle.marginTop) + toInt(railYStyle.marginBottom); |
| 1214 |
set(this.scrollbarYRail, { display: '' }); |
| 1215 |
this.railYHeight = null; |
| 1216 |
this.railYRatio = null; |
| 1217 |
|
| 1218 |
this.reach = { |
| 1219 |
x: |
| 1220 |
element.scrollLeft <= 0 |
| 1221 |
? 'start' |
| 1222 |
: element.scrollLeft >= this.contentWidth - this.containerWidth |
| 1223 |
? 'end' |
| 1224 |
: null, |
| 1225 |
y: |
| 1226 |
element.scrollTop <= 0 |
| 1227 |
? 'start' |
| 1228 |
: element.scrollTop >= this.contentHeight - this.containerHeight |
| 1229 |
? 'end' |
| 1230 |
: null, |
| 1231 |
}; |
| 1232 |
|
| 1233 |
this.isAlive = true; |
| 1234 |
|
| 1235 |
this.settings.handlers.forEach(function (handlerName) { return handlers[handlerName](this$1); }); |
| 1236 |
|
| 1237 |
this.lastScrollTop = Math.floor(element.scrollTop); // for onScroll only |
| 1238 |
this.lastScrollLeft = element.scrollLeft; // for onScroll only |
| 1239 |
this.event.bind(this.element, 'scroll', function (e) { return this$1.onScroll(e); }); |
| 1240 |
updateGeometry(this); |
| 1241 |
}; |
| 1242 |
|
| 1243 |
PerfectScrollbar.prototype.update = function update () { |
| 1244 |
if (!this.isAlive) { |
| 1245 |
return; |
| 1246 |
} |
| 1247 |
|
| 1248 |
// Recalcuate negative scrollLeft adjustment |
| 1249 |
this.negativeScrollAdjustment = this.isNegativeScroll |
| 1250 |
? this.element.scrollWidth - this.element.clientWidth |
| 1251 |
: 0; |
| 1252 |
|
| 1253 |
// Recalculate rail margins |
| 1254 |
set(this.scrollbarXRail, { display: 'block' }); |
| 1255 |
set(this.scrollbarYRail, { display: 'block' }); |
| 1256 |
this.railXMarginWidth = |
| 1257 |
toInt(get(this.scrollbarXRail).marginLeft) + |
| 1258 |
toInt(get(this.scrollbarXRail).marginRight); |
| 1259 |
this.railYMarginHeight = |
| 1260 |
toInt(get(this.scrollbarYRail).marginTop) + |
| 1261 |
toInt(get(this.scrollbarYRail).marginBottom); |
| 1262 |
|
| 1263 |
// Hide scrollbars not to affect scrollWidth and scrollHeight |
| 1264 |
set(this.scrollbarXRail, { display: 'none' }); |
| 1265 |
set(this.scrollbarYRail, { display: 'none' }); |
| 1266 |
|
| 1267 |
updateGeometry(this); |
| 1268 |
|
| 1269 |
processScrollDiff(this, 'top', 0, false, true); |
| 1270 |
processScrollDiff(this, 'left', 0, false, true); |
| 1271 |
|
| 1272 |
set(this.scrollbarXRail, { display: '' }); |
| 1273 |
set(this.scrollbarYRail, { display: '' }); |
| 1274 |
}; |
| 1275 |
|
| 1276 |
PerfectScrollbar.prototype.onScroll = function onScroll (e) { |
| 1277 |
if (!this.isAlive) { |
| 1278 |
return; |
| 1279 |
} |
| 1280 |
|
| 1281 |
updateGeometry(this); |
| 1282 |
processScrollDiff(this, 'top', this.element.scrollTop - this.lastScrollTop); |
| 1283 |
processScrollDiff( |
| 1284 |
this, |
| 1285 |
'left', |
| 1286 |
this.element.scrollLeft - this.lastScrollLeft |
| 1287 |
); |
| 1288 |
|
| 1289 |
this.lastScrollTop = Math.floor(this.element.scrollTop); |
| 1290 |
this.lastScrollLeft = this.element.scrollLeft; |
| 1291 |
}; |
| 1292 |
|
| 1293 |
PerfectScrollbar.prototype.destroy = function destroy () { |
| 1294 |
if (!this.isAlive) { |
| 1295 |
return; |
| 1296 |
} |
| 1297 |
|
| 1298 |
this.event.unbindAll(); |
| 1299 |
remove(this.scrollbarX); |
| 1300 |
remove(this.scrollbarY); |
| 1301 |
remove(this.scrollbarXRail); |
| 1302 |
remove(this.scrollbarYRail); |
| 1303 |
this.removePsClasses(); |
| 1304 |
|
| 1305 |
// unset elements |
| 1306 |
this.element = null; |
| 1307 |
this.scrollbarX = null; |
| 1308 |
this.scrollbarY = null; |
| 1309 |
this.scrollbarXRail = null; |
| 1310 |
this.scrollbarYRail = null; |
| 1311 |
|
| 1312 |
this.isAlive = false; |
| 1313 |
}; |
| 1314 |
|
| 1315 |
PerfectScrollbar.prototype.removePsClasses = function removePsClasses () { |
| 1316 |
this.element.className = this.element.className |
| 1317 |
.split(' ') |
| 1318 |
.filter(function (name) { return !name.match(/^ps([-_].+|)$/); }) |
| 1319 |
.join(' '); |
| 1320 |
}; |
| 1321 |
|
| 1322 |
return PerfectScrollbar; |
| 1323 |
|
| 1324 |
}))); |
| 1325 |
|
