833 lines
34 KiB
JavaScript
833 lines
34 KiB
JavaScript
/**
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* jQuery CSS Customizable Scrollbar
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*
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* Copyright 2015, Yuriy Khabarov
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* Dual licensed under the MIT or GPL Version 2 licenses.
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*
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* If you found bug, please contact me via email <13real008@gmail.com>
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*
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* @author Yuriy Khabarov aka Gromo
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* @version 0.2.11
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* @url https://github.com/gromo/jquery.scrollbar/
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*
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*/
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;
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(function (root, factory) {
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'use strict';
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if (typeof define === 'function' && define.amd) {
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define(['jquery'], factory);
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} else if (typeof exports !== 'undefined') {
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module.exports = factory(require('jquery'));
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} else {
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factory(jQuery);
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}
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}(this, function ($) {
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'use strict';
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// init flags & variables
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var debug = true;
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var browser = {
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data: {
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index: 0,
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name: 'scrollbar'
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},
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firefox: /firefox/i.test(navigator.userAgent),
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macosx: /mac/i.test(navigator.platform),
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msedge: /edge\/\d+/i.test(navigator.userAgent),
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msie: /(msie|trident)/i.test(navigator.userAgent),
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mobile: /android|webos|iphone|ipad|ipod|blackberry/i.test(navigator.userAgent),
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overlay: null,
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scroll: null,
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scrolls: [],
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webkit: /webkit/i.test(navigator.userAgent) && !/edge\/\d+/i.test(navigator.userAgent)
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};
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browser.scrolls.add = function (instance) {
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this.remove(instance).push(instance);
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};
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browser.scrolls.remove = function (instance) {
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while ($.inArray(instance, this) >= 0) {
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this.splice($.inArray(instance, this), 1);
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}
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return this;
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};
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var defaults = {
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autoScrollSize: true, // automatically calculate scrollsize
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autoUpdate: true, // update scrollbar if content/container size changed
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debug: true, // debug mode
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disableBodyScroll: false, // disable body scroll if mouse over container
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duration: 200, // scroll animate duration in ms
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ignoreMobile: false, // ignore mobile devices
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ignoreOverlay: false, // ignore browsers with overlay scrollbars (mobile, MacOS)
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isRtl: false, // is RTL
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scrollStep: 30, // scroll step for scrollbar arrows
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showArrows: false, // add class to show arrows
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stepScrolling: true, // when scrolling to scrollbar mousedown position
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scrollx: null, // horizontal scroll element
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scrolly: null, // vertical scroll element
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onDestroy: null, // callback function on destroy,
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onFallback: null, // callback function if scrollbar is not initialized
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onInit: null, // callback function on first initialization
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onScroll: null, // callback function on content scrolling
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onUpdate: null // callback function on init/resize (before scrollbar size calculation)
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};
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var BaseScrollbar = function (container) {
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if (!browser.scroll) {
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browser.overlay = isScrollOverlaysContent();
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browser.scroll = getBrowserScrollSize();
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updateScrollbars();
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$(window).resize(function () {
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var forceUpdate = false;
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if (browser.scroll && (browser.scroll.height || browser.scroll.width)) {
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var scroll = getBrowserScrollSize();
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if (scroll.height !== browser.scroll.height || scroll.width !== browser.scroll.width) {
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browser.scroll = scroll;
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forceUpdate = true; // handle page zoom
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}
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}
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updateScrollbars(forceUpdate);
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});
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}
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this.container = container;
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this.namespace = '.scrollbar_' + browser.data.index++;
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this.options = $.extend({}, defaults, window.jQueryScrollbarOptions || {});
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this.scrollTo = null;
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this.scrollx = {};
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this.scrolly = {};
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container.data(browser.data.name, this);
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browser.scrolls.add(this);
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};
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BaseScrollbar.prototype = {
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destroy: function () {
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if (!this.wrapper) {
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return;
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}
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this.container.removeData(browser.data.name);
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browser.scrolls.remove(this);
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// init variables
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var scrollLeft = this.container.scrollLeft();
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var scrollTop = this.container.scrollTop();
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this.container.insertBefore(this.wrapper).css({
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"height": "",
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"margin": "",
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"max-height": ""
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})
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.removeClass('scroll-content scroll-scrollx_visible scroll-scrolly_visible')
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.off(this.namespace)
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.scrollLeft(scrollLeft)
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.scrollTop(scrollTop);
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this.scrollx.scroll.removeClass('scroll-scrollx_visible').find('div').addBack().off(this.namespace);
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this.scrolly.scroll.removeClass('scroll-scrolly_visible').find('div').addBack().off(this.namespace);
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this.wrapper.remove();
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$(document).add('body').off(this.namespace);
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if ($.isFunction(this.options.onDestroy)) {
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this.options.onDestroy.apply(this, [this.container]);
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}
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},
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init: function (options) {
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// init variables
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var S = this,
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c = this.container,
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cw = this.containerWrapper || c,
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namespace = this.namespace,
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o = $.extend(this.options, options || {}),
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s = {x: this.scrollx, y: this.scrolly},
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w = this.wrapper,
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cssOptions = {};
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var initScroll = {
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scrollLeft: c.scrollLeft(),
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scrollTop: c.scrollTop()
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};
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// do not init if in ignorable browser
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if ((browser.mobile && o.ignoreMobile)
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|| (browser.overlay && o.ignoreOverlay)
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|| (browser.macosx && !browser.webkit) // still required to ignore nonWebKit browsers on Mac
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) {
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if ($.isFunction(o.onFallback)) {
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o.onFallback.apply(this, [c]);
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}
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return false;
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}
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// init scroll container
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if (!w) {
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this.wrapper = w = $('<div>').addClass('scroll-wrapper').addClass(c.attr('class'))
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.css('position', c.css('position') === 'absolute' ? 'absolute' : 'relative')
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.insertBefore(c).append(c);
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if (o.isRtl) {
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w.addClass('scroll--rtl');
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}
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if (c.is('textarea')) {
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this.containerWrapper = cw = $('<div>').insertBefore(c).append(c);
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w.addClass('scroll-textarea');
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}
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cssOptions = {
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"height": "auto",
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"margin-bottom": browser.scroll.height * -1 + 'px',
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"max-height": ""
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};
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cssOptions[o.isRtl ? 'margin-left' : 'margin-right'] = browser.scroll.width * -1 + 'px';
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cw.addClass('scroll-content').css(cssOptions);
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c.on('scroll' + namespace, function (event) {
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var scrollLeft = c.scrollLeft();
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var scrollTop = c.scrollTop();
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if (o.isRtl) {
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// webkit 0:100
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// ie/edge 100:0
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// firefox -100:0
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switch (true) {
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case browser.firefox:
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scrollLeft = Math.abs(scrollLeft);
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case browser.msedge || browser.msie:
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scrollLeft = c[0].scrollWidth - c[0].clientWidth - scrollLeft;
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break;
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}
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}
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if ($.isFunction(o.onScroll)) {
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o.onScroll.call(S, {
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maxScroll: s.y.maxScrollOffset,
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scroll: scrollTop,
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size: s.y.size,
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visible: s.y.visible
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}, {
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maxScroll: s.x.maxScrollOffset,
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scroll: scrollLeft,
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size: s.x.size,
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visible: s.x.visible
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});
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}
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s.x.isVisible && s.x.scroll.bar.css('left', scrollLeft * s.x.kx + 'px');
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s.y.isVisible && s.y.scroll.bar.css('top', scrollTop * s.y.kx + 'px');
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});
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/* prevent native scrollbars to be visible on #anchor click */
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w.on('scroll' + namespace, function () {
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w.scrollTop(0).scrollLeft(0);
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});
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if (o.disableBodyScroll) {
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var handleMouseScroll = function (event) {
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isVerticalScroll(event) ?
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s.y.isVisible && s.y.mousewheel(event) :
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s.x.isVisible && s.x.mousewheel(event);
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};
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w.on('MozMousePixelScroll' + namespace, handleMouseScroll);
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w.on('mousewheel' + namespace, handleMouseScroll);
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if (browser.mobile) {
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w.on('touchstart' + namespace, function (event) {
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var touch = event.originalEvent.touches && event.originalEvent.touches[0] || event;
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var originalTouch = {
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pageX: touch.pageX,
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pageY: touch.pageY
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};
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var originalScroll = {
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left: c.scrollLeft(),
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top: c.scrollTop()
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};
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$(document).on('touchmove' + namespace, function (event) {
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var touch = event.originalEvent.targetTouches && event.originalEvent.targetTouches[0] || event;
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c.scrollLeft(originalScroll.left + originalTouch.pageX - touch.pageX);
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c.scrollTop(originalScroll.top + originalTouch.pageY - touch.pageY);
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event.preventDefault();
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});
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$(document).on('touchend' + namespace, function () {
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$(document).off(namespace);
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});
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});
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}
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}
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if ($.isFunction(o.onInit)) {
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o.onInit.apply(this, [c]);
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}
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} else {
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cssOptions = {
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"height": "auto",
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"margin-bottom": browser.scroll.height * -1 + 'px',
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"max-height": ""
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};
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cssOptions[o.isRtl ? 'margin-left' : 'margin-right'] = browser.scroll.width * -1 + 'px';
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cw.css(cssOptions);
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}
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// init scrollbars & recalculate sizes
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$.each(s, function (d, scrollx) {
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var scrollCallback = null;
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var scrollForward = 1;
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var scrollOffset = (d === 'x') ? 'scrollLeft' : 'scrollTop';
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var scrollStep = o.scrollStep;
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var scrollTo = function () {
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var currentOffset = c[scrollOffset]();
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c[scrollOffset](currentOffset + scrollStep);
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if (scrollForward == 1 && (currentOffset + scrollStep) >= scrollToValue)
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currentOffset = c[scrollOffset]();
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if (scrollForward == -1 && (currentOffset + scrollStep) <= scrollToValue)
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currentOffset = c[scrollOffset]();
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if (c[scrollOffset]() == currentOffset && scrollCallback) {
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scrollCallback();
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}
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}
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var scrollToValue = 0;
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if (!scrollx.scroll) {
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scrollx.scroll = S._getScroll(o['scroll' + d]).addClass('scroll-' + d);
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if (o.showArrows) {
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scrollx.scroll.addClass('scroll-element_arrows_visible');
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}
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scrollx.mousewheel = function (event) {
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if (!scrollx.isVisible || (d === 'x' && isVerticalScroll(event))) {
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return true;
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}
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if (d === 'y' && !isVerticalScroll(event)) {
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s.x.mousewheel(event);
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return true;
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}
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var delta = event.originalEvent.wheelDelta * -1 || event.originalEvent.detail;
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var maxScrollValue = scrollx.size - scrollx.visible - scrollx.offset;
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// fix new mozilla
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if (!delta) {
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if (d === 'x' && !!event.originalEvent.deltaX) {
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delta = event.originalEvent.deltaX * 40;
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} else if (d === 'y' && !!event.originalEvent.deltaY) {
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delta = event.originalEvent.deltaY * 40;
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}
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}
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if ((delta > 0 && scrollToValue < maxScrollValue) || (delta < 0 && scrollToValue > 0)) {
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scrollToValue = scrollToValue + delta;
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if (scrollToValue < 0)
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scrollToValue = 0;
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if (scrollToValue > maxScrollValue)
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scrollToValue = maxScrollValue;
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S.scrollTo = S.scrollTo || {};
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S.scrollTo[scrollOffset] = scrollToValue;
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setTimeout(function () {
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if (S.scrollTo) {
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c.stop().animate(S.scrollTo, 240, 'linear', function () {
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scrollToValue = c[scrollOffset]();
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});
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S.scrollTo = null;
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}
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}, 1);
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}
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event.preventDefault();
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return false;
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};
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scrollx.scroll
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.on('MozMousePixelScroll' + namespace, scrollx.mousewheel)
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.on('mousewheel' + namespace, scrollx.mousewheel)
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.on('mouseenter' + namespace, function () {
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scrollToValue = c[scrollOffset]();
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});
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// handle arrows & scroll inner mousedown event
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scrollx.scroll.find('.scroll-arrow, .scroll-element_track')
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.on('mousedown' + namespace, function (event) {
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if (event.which != 1) // lmb
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return true;
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scrollForward = 1;
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var data = {
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eventOffset: event[(d === 'x') ? 'pageX' : 'pageY'],
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maxScrollValue: scrollx.size - scrollx.visible - scrollx.offset,
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scrollbarOffset: scrollx.scroll.bar.offset()[(d === 'x') ? 'left' : 'top'],
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scrollbarSize: scrollx.scroll.bar[(d === 'x') ? 'outerWidth' : 'outerHeight']()
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};
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var timeout = 0, timer = 0;
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if ($(this).hasClass('scroll-arrow')) {
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scrollForward = $(this).hasClass("scroll-arrow_more") ? 1 : -1;
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scrollStep = o.scrollStep * scrollForward;
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scrollToValue = scrollForward > 0 ? data.maxScrollValue : 0;
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if (o.isRtl) {
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switch(true){
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case browser.firefox:
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scrollToValue = scrollForward > 0 ? 0: data.maxScrollValue * -1;
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break;
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case browser.msie || browser.msedge:
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break;
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}
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}
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} else {
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scrollForward = (data.eventOffset > (data.scrollbarOffset + data.scrollbarSize) ? 1
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: (data.eventOffset < data.scrollbarOffset ? -1 : 0));
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if(d === 'x' && o.isRtl && (browser.msie || browser.msedge))
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scrollForward = scrollForward * -1;
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scrollStep = Math.round(scrollx.visible * 0.75) * scrollForward;
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scrollToValue = (data.eventOffset - data.scrollbarOffset -
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(o.stepScrolling ? (scrollForward == 1 ? data.scrollbarSize : 0)
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: Math.round(data.scrollbarSize / 2)));
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scrollToValue = c[scrollOffset]() + (scrollToValue / scrollx.kx);
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}
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S.scrollTo = S.scrollTo || {};
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S.scrollTo[scrollOffset] = o.stepScrolling ? c[scrollOffset]() + scrollStep : scrollToValue;
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if (o.stepScrolling) {
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scrollCallback = function () {
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scrollToValue = c[scrollOffset]();
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clearInterval(timer);
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clearTimeout(timeout);
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timeout = 0;
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timer = 0;
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};
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timeout = setTimeout(function () {
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timer = setInterval(scrollTo, 40);
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}, o.duration + 100);
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}
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setTimeout(function () {
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if (S.scrollTo) {
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c.animate(S.scrollTo, o.duration);
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S.scrollTo = null;
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}
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}, 1);
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return S._handleMouseDown(scrollCallback, event);
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});
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// handle scrollbar drag'n'drop
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scrollx.scroll.bar.on('mousedown' + namespace, function (event) {
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if (event.which != 1) // lmb
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return true;
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var eventPosition = event[(d === 'x') ? 'pageX' : 'pageY'];
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var initOffset = c[scrollOffset]();
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scrollx.scroll.addClass('scroll-draggable');
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$(document).on('mousemove' + namespace, function (event) {
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var diff = parseInt((event[(d === 'x') ? 'pageX' : 'pageY'] - eventPosition) / scrollx.kx, 10);
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if (d === 'x' && o.isRtl && (browser.msie || browser.msedge))
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diff = diff * -1;
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c[scrollOffset](initOffset + diff);
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});
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return S._handleMouseDown(function () {
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scrollx.scroll.removeClass('scroll-draggable');
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scrollToValue = c[scrollOffset]();
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}, event);
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});
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}
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});
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// remove classes & reset applied styles
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$.each(s, function (d, scrollx) {
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var scrollClass = 'scroll-scroll' + d + '_visible';
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var scrolly = (d == "x") ? s.y : s.x;
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scrollx.scroll.removeClass(scrollClass);
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scrolly.scroll.removeClass(scrollClass);
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cw.removeClass(scrollClass);
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});
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// calculate init sizes
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$.each(s, function (d, scrollx) {
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$.extend(scrollx, (d == "x") ? {
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offset: parseInt(c.css('left'), 10) || 0,
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size: c.prop('scrollWidth'),
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visible: w.width()
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} : {
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offset: parseInt(c.css('top'), 10) || 0,
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size: c.prop('scrollHeight'),
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visible: w.height()
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});
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});
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// update scrollbar visibility/dimensions
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this._updateScroll('x', this.scrollx);
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this._updateScroll('y', this.scrolly);
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if ($.isFunction(o.onUpdate)) {
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o.onUpdate.apply(this, [c]);
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}
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// calculate scroll size
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$.each(s, function (d, scrollx) {
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var cssOffset = (d === 'x') ? 'left' : 'top';
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var cssFullSize = (d === 'x') ? 'outerWidth' : 'outerHeight';
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var cssSize = (d === 'x') ? 'width' : 'height';
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var offset = parseInt(c.css(cssOffset), 10) || 0;
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var AreaSize = scrollx.size;
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var AreaVisible = scrollx.visible + offset;
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var scrollSize = scrollx.scroll.size[cssFullSize]() + (parseInt(scrollx.scroll.size.css(cssOffset), 10) || 0);
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if (o.autoScrollSize) {
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scrollx.scrollbarSize = parseInt(scrollSize * AreaVisible / AreaSize, 10);
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scrollx.scroll.bar.css(cssSize, scrollx.scrollbarSize + 'px');
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}
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scrollx.scrollbarSize = scrollx.scroll.bar[cssFullSize]();
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scrollx.kx = ((scrollSize - scrollx.scrollbarSize) / (AreaSize - AreaVisible)) || 1;
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scrollx.maxScrollOffset = AreaSize - AreaVisible;
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});
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c.scrollLeft(initScroll.scrollLeft).scrollTop(initScroll.scrollTop).trigger('scroll');
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},
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/**
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* Get scrollx/scrolly object
|
|
*
|
|
* @param {Mixed} scroll
|
|
* @returns {jQuery} scroll object
|
|
*/
|
|
_getScroll: function (scroll) {
|
|
var types = {
|
|
advanced: [
|
|
'<div class="scroll-element">',
|
|
'<div class="scroll-element_corner"></div>',
|
|
'<div class="scroll-arrow scroll-arrow_less"></div>',
|
|
'<div class="scroll-arrow scroll-arrow_more"></div>',
|
|
'<div class="scroll-element_outer">',
|
|
'<div class="scroll-element_size"></div>', // required! used for scrollbar size calculation !
|
|
'<div class="scroll-element_inner-wrapper">',
|
|
'<div class="scroll-element_inner scroll-element_track">', // used for handling scrollbar click
|
|
'<div class="scroll-element_inner-bottom"></div>',
|
|
'</div>',
|
|
'</div>',
|
|
'<div class="scroll-bar">', // required
|
|
'<div class="scroll-bar_body">',
|
|
'<div class="scroll-bar_body-inner"></div>',
|
|
'</div>',
|
|
'<div class="scroll-bar_bottom"></div>',
|
|
'<div class="scroll-bar_center"></div>',
|
|
'</div>',
|
|
'</div>',
|
|
'</div>'
|
|
].join(''),
|
|
simple: [
|
|
'<div class="scroll-element">',
|
|
'<div class="scroll-element_outer">',
|
|
'<div class="scroll-element_size"></div>', // required! used for scrollbar size calculation !
|
|
'<div class="scroll-element_track"></div>', // used for handling scrollbar click
|
|
'<div class="scroll-bar"></div>', // required
|
|
'</div>',
|
|
'</div>'
|
|
].join('')
|
|
};
|
|
if (types[scroll]) {
|
|
scroll = types[scroll];
|
|
}
|
|
if (!scroll) {
|
|
scroll = types['simple'];
|
|
}
|
|
if (typeof (scroll) == 'string') {
|
|
scroll = $(scroll).appendTo(this.wrapper);
|
|
} else {
|
|
scroll = $(scroll);
|
|
}
|
|
$.extend(scroll, {
|
|
bar: scroll.find('.scroll-bar'),
|
|
size: scroll.find('.scroll-element_size'),
|
|
track: scroll.find('.scroll-element_track')
|
|
});
|
|
return scroll;
|
|
},
|
|
_handleMouseDown: function (callback, event) {
|
|
|
|
var namespace = this.namespace;
|
|
|
|
$(document).on('blur' + namespace, function () {
|
|
$(document).add('body').off(namespace);
|
|
callback && callback();
|
|
});
|
|
$(document).on('dragstart' + namespace, function (event) {
|
|
event.preventDefault();
|
|
return false;
|
|
});
|
|
$(document).on('mouseup' + namespace, function () {
|
|
$(document).add('body').off(namespace);
|
|
callback && callback();
|
|
});
|
|
$('body').on('selectstart' + namespace, function (event) {
|
|
event.preventDefault();
|
|
return false;
|
|
});
|
|
|
|
event && event.preventDefault();
|
|
return false;
|
|
},
|
|
_updateScroll: function (d, scrollx) {
|
|
|
|
var container = this.container,
|
|
containerWrapper = this.containerWrapper || container,
|
|
scrollClass = 'scroll-scroll' + d + '_visible',
|
|
scrolly = (d === 'x') ? this.scrolly : this.scrollx,
|
|
offset = parseInt(this.container.css((d === 'x') ? 'left' : 'top'), 10) || 0,
|
|
wrapper = this.wrapper;
|
|
|
|
var AreaSize = scrollx.size;
|
|
var AreaVisible = scrollx.visible + offset;
|
|
|
|
scrollx.isVisible = (AreaSize - AreaVisible) > 1; // bug in IE9/11 with 1px diff
|
|
if (scrollx.isVisible) {
|
|
scrollx.scroll.addClass(scrollClass);
|
|
scrolly.scroll.addClass(scrollClass);
|
|
containerWrapper.addClass(scrollClass);
|
|
} else {
|
|
scrollx.scroll.removeClass(scrollClass);
|
|
scrolly.scroll.removeClass(scrollClass);
|
|
containerWrapper.removeClass(scrollClass);
|
|
}
|
|
|
|
if (d === 'y') {
|
|
if (container.is('textarea') || AreaSize < AreaVisible) {
|
|
containerWrapper.css({
|
|
"height": (AreaVisible + browser.scroll.height) + 'px',
|
|
"max-height": "none"
|
|
});
|
|
} else {
|
|
containerWrapper.css({
|
|
//"height": "auto", // do not reset height value: issue with height:100%!
|
|
"max-height": (AreaVisible + browser.scroll.height) + 'px'
|
|
});
|
|
}
|
|
}
|
|
|
|
if (scrollx.size != container.prop('scrollWidth')
|
|
|| scrolly.size != container.prop('scrollHeight')
|
|
|| scrollx.visible != wrapper.width()
|
|
|| scrolly.visible != wrapper.height()
|
|
|| scrollx.offset != (parseInt(container.css('left'), 10) || 0)
|
|
|| scrolly.offset != (parseInt(container.css('top'), 10) || 0)
|
|
) {
|
|
$.extend(this.scrollx, {
|
|
offset: parseInt(container.css('left'), 10) || 0,
|
|
size: container.prop('scrollWidth'),
|
|
visible: wrapper.width()
|
|
});
|
|
$.extend(this.scrolly, {
|
|
offset: parseInt(container.css('top'), 10) || 0,
|
|
size: this.container.prop('scrollHeight'),
|
|
visible: wrapper.height()
|
|
});
|
|
this._updateScroll(d === 'x' ? 'y' : 'x', scrolly);
|
|
}
|
|
}
|
|
};
|
|
|
|
var CustomScrollbar = BaseScrollbar;
|
|
|
|
/*
|
|
* Extend jQuery as plugin
|
|
*
|
|
* @param {Mixed} command to execute
|
|
* @param {Mixed} arguments as Array
|
|
* @return {jQuery}
|
|
*/
|
|
$.fn.scrollbar = function (command, args) {
|
|
if (typeof command !== 'string') {
|
|
args = command;
|
|
command = 'init';
|
|
}
|
|
if (typeof args === 'undefined') {
|
|
args = [];
|
|
}
|
|
if (!$.isArray(args)) {
|
|
args = [args];
|
|
}
|
|
this.not('body, .scroll-wrapper').each(function () {
|
|
var element = $(this),
|
|
instance = element.data(browser.data.name);
|
|
if (instance || command === 'init') {
|
|
if (!instance) {
|
|
instance = new CustomScrollbar(element);
|
|
}
|
|
if (instance[command]) {
|
|
instance[command].apply(instance, args);
|
|
}
|
|
}
|
|
});
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Connect default options to global object
|
|
*/
|
|
$.fn.scrollbar.options = defaults;
|
|
|
|
|
|
/**
|
|
* Check if scroll content/container size is changed
|
|
*/
|
|
|
|
var updateScrollbars = (function () {
|
|
var timer = 0,
|
|
timerCounter = 0;
|
|
|
|
return function (force) {
|
|
var i, container, options, scroll, wrapper, scrollx, scrolly;
|
|
for (i = 0; i < browser.scrolls.length; i++) {
|
|
scroll = browser.scrolls[i];
|
|
container = scroll.container;
|
|
options = scroll.options;
|
|
wrapper = scroll.wrapper;
|
|
scrollx = scroll.scrollx;
|
|
scrolly = scroll.scrolly;
|
|
if (force || (options.autoUpdate && wrapper && wrapper.is(':visible') &&
|
|
(container.prop('scrollWidth') != scrollx.size || container.prop('scrollHeight') != scrolly.size || wrapper.width() != scrollx.visible || wrapper.height() != scrolly.visible))) {
|
|
scroll.init();
|
|
|
|
if (options.debug) {
|
|
window.console && console.log({
|
|
scrollHeight: container.prop('scrollHeight') + ':' + scroll.scrolly.size,
|
|
scrollWidth: container.prop('scrollWidth') + ':' + scroll.scrollx.size,
|
|
visibleHeight: wrapper.height() + ':' + scroll.scrolly.visible,
|
|
visibleWidth: wrapper.width() + ':' + scroll.scrollx.visible
|
|
}, true);
|
|
timerCounter++;
|
|
}
|
|
}
|
|
}
|
|
if (debug && timerCounter > 10) {
|
|
window.console && console.log('Scroll updates exceed 10');
|
|
updateScrollbars = function () {};
|
|
} else {
|
|
clearTimeout(timer);
|
|
timer = setTimeout(updateScrollbars, 300);
|
|
}
|
|
};
|
|
})();
|
|
|
|
/* ADDITIONAL FUNCTIONS */
|
|
/**
|
|
* Get native browser scrollbar size (height/width)
|
|
*
|
|
* @param {Boolean} actual size or CSS size, default - CSS size
|
|
* @returns {Object} with height, width
|
|
*/
|
|
function getBrowserScrollSize(actualSize) {
|
|
|
|
if (browser.webkit && !actualSize) {
|
|
return {
|
|
height: 0,
|
|
width: 0
|
|
};
|
|
}
|
|
|
|
if (!browser.data.outer) {
|
|
var css = {
|
|
"border": "none",
|
|
"box-sizing": "content-box",
|
|
"height": "200px",
|
|
"margin": "0",
|
|
"padding": "0",
|
|
"width": "200px"
|
|
};
|
|
browser.data.inner = $("<div>").css($.extend({}, css));
|
|
browser.data.outer = $("<div>").css($.extend({
|
|
"left": "-1000px",
|
|
"overflow": "scroll",
|
|
"position": "absolute",
|
|
"top": "-1000px"
|
|
}, css)).append(browser.data.inner).appendTo("body");
|
|
}
|
|
|
|
browser.data.outer.scrollLeft(1000).scrollTop(1000);
|
|
|
|
return {
|
|
height: Math.ceil((browser.data.outer.offset().top - browser.data.inner.offset().top) || 0),
|
|
width: Math.ceil((browser.data.outer.offset().left - browser.data.inner.offset().left) || 0)
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Check if native browser scrollbars overlay content
|
|
*
|
|
* @returns {Boolean}
|
|
*/
|
|
function isScrollOverlaysContent() {
|
|
var scrollSize = getBrowserScrollSize(true);
|
|
return !(scrollSize.height || scrollSize.width);
|
|
}
|
|
|
|
function isVerticalScroll(event) {
|
|
var e = event.originalEvent;
|
|
if (e.axis && e.axis === e.HORIZONTAL_AXIS)
|
|
return false;
|
|
if (e.wheelDeltaX)
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
|
|
/**
|
|
* Extend AngularJS as UI directive
|
|
* and expose a provider for override default config
|
|
*
|
|
*/
|
|
if (window.angular) {
|
|
(function (angular) {
|
|
angular.module('jQueryScrollbar', [])
|
|
.provider('jQueryScrollbar', function () {
|
|
var defaultOptions = defaults;
|
|
return {
|
|
setOptions: function (options) {
|
|
angular.extend(defaultOptions, options);
|
|
},
|
|
$get: function () {
|
|
return {
|
|
options: angular.copy(defaultOptions)
|
|
};
|
|
}
|
|
};
|
|
})
|
|
.directive('jqueryScrollbar', ['jQueryScrollbar', '$parse', function (jQueryScrollbar, $parse) {
|
|
return {
|
|
restrict: "AC",
|
|
link: function (scope, element, attrs) {
|
|
var model = $parse(attrs.jqueryScrollbar),
|
|
options = model(scope);
|
|
element.scrollbar(options || jQueryScrollbar.options)
|
|
.on('$destroy', function () {
|
|
element.scrollbar('destroy');
|
|
});
|
|
}
|
|
};
|
|
}]);
|
|
})(window.angular);
|
|
}
|
|
}));
|