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2458 lines
91 KiB
2458 lines
91 KiB
/* |
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== malihu jquery custom scrollbar plugin == |
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Version: 3.1.5 |
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Plugin URI: http://manos.malihu.gr/jquery-custom-content-scroller |
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Author: malihu |
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Author URI: http://manos.malihu.gr |
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License: MIT License (MIT) |
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*/ |
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|
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/* |
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Copyright Manos Malihutsakis (email: manos@malihu.gr) |
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Permission is hereby granted, free of charge, to any person obtaining a copy |
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of this software and associated documentation files (the "Software"), to deal |
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in the Software without restriction, including without limitation the rights |
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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copies of the Software, and to permit persons to whom the Software is |
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furnished to do so, subject to the following conditions: |
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The above copyright notice and this permission notice shall be included in |
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all copies or substantial portions of the Software. |
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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THE SOFTWARE. |
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*/ |
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/* |
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The code below is fairly long, fully commented and should be normally used in development. |
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For production, use either the minified jquery.mCustomScrollbar.min.js script or |
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the production-ready jquery.mCustomScrollbar.concat.min.js which contains the plugin |
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and dependencies (minified). |
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*/ |
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(function(factory){ |
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if(typeof define==="function" && define.amd){ |
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define(["jquery"],factory); |
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}else if(typeof module!=="undefined" && module.exports){ |
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module.exports=factory; |
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}else{ |
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factory(jQuery,window,document); |
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} |
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}(function($){ |
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(function(init){ |
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var _rjs=typeof define==="function" && define.amd, /* RequireJS */ |
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_njs=typeof module !== "undefined" && module.exports, /* NodeJS */ |
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_dlp=("https:"==document.location.protocol) ? "https:" : "http:", /* location protocol */ |
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_url="cdnjs.cloudflare.com/ajax/libs/jquery-mousewheel/3.1.13/jquery.mousewheel.min.js"; |
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if(!_rjs){ |
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if(_njs){ |
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require("jquery-mousewheel")($); |
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}else{ |
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/* load jquery-mousewheel plugin (via CDN) if it's not present or not loaded via RequireJS |
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(works when mCustomScrollbar fn is called on window load) */ |
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$.event.special.mousewheel || $("head").append(decodeURI("%3Cscript src="+_dlp+"//"+_url+"%3E%3C/script%3E")); |
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} |
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} |
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init(); |
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}(function(){ |
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|
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/* |
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---------------------------------------- |
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PLUGIN NAMESPACE, PREFIX, DEFAULT SELECTOR(S) |
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---------------------------------------- |
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*/ |
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var pluginNS="mCustomScrollbar", |
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pluginPfx="mCS", |
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defaultSelector=".mCustomScrollbar", |
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/* |
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---------------------------------------- |
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DEFAULT OPTIONS |
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---------------------------------------- |
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*/ |
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defaults={ |
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/* |
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set element/content width/height programmatically |
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values: boolean, pixels, percentage |
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option default |
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------------------------------------- |
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setWidth false |
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setHeight false |
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*/ |
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/* |
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set the initial css top property of content |
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values: string (e.g. "-100px", "10%" etc.) |
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*/ |
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setTop:0, |
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/* |
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set the initial css left property of content |
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values: string (e.g. "-100px", "10%" etc.) |
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*/ |
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setLeft:0, |
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/* |
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scrollbar axis (vertical and/or horizontal scrollbars) |
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values (string): "y", "x", "yx" |
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*/ |
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axis:"y", |
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/* |
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position of scrollbar relative to content |
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values (string): "inside", "outside" ("outside" requires elements with position:relative) |
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*/ |
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scrollbarPosition:"inside", |
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/* |
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scrolling inertia |
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values: integer (milliseconds) |
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*/ |
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scrollInertia:950, |
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/* |
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auto-adjust scrollbar dragger length |
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values: boolean |
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*/ |
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autoDraggerLength:true, |
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/* |
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auto-hide scrollbar when idle |
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values: boolean |
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option default |
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------------------------------------- |
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autoHideScrollbar false |
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*/ |
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/* |
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auto-expands scrollbar on mouse-over and dragging |
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values: boolean |
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option default |
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------------------------------------- |
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autoExpandScrollbar false |
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*/ |
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/* |
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always show scrollbar, even when there's nothing to scroll |
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values: integer (0=disable, 1=always show dragger rail and buttons, 2=always show dragger rail, dragger and buttons), boolean |
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*/ |
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alwaysShowScrollbar:0, |
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/* |
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scrolling always snaps to a multiple of this number in pixels |
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values: integer, array ([y,x]) |
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option default |
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------------------------------------- |
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snapAmount null |
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*/ |
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/* |
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when snapping, snap with this number in pixels as an offset |
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values: integer |
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*/ |
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snapOffset:0, |
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/* |
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mouse-wheel scrolling |
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*/ |
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mouseWheel:{ |
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/* |
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enable mouse-wheel scrolling |
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values: boolean |
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*/ |
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enable:true, |
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/* |
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scrolling amount in pixels |
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values: "auto", integer |
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*/ |
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scrollAmount:"auto", |
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/* |
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mouse-wheel scrolling axis |
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the default scrolling direction when both vertical and horizontal scrollbars are present |
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values (string): "y", "x" |
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*/ |
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axis:"y", |
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/* |
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prevent the default behaviour which automatically scrolls the parent element(s) when end of scrolling is reached |
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values: boolean |
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option default |
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------------------------------------- |
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preventDefault null |
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*/ |
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/* |
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the reported mouse-wheel delta value. The number of lines (translated to pixels) one wheel notch scrolls. |
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values: "auto", integer |
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"auto" uses the default OS/browser value |
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*/ |
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deltaFactor:"auto", |
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/* |
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normalize mouse-wheel delta to -1 or 1 (disables mouse-wheel acceleration) |
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values: boolean |
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option default |
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------------------------------------- |
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normalizeDelta null |
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*/ |
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/* |
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invert mouse-wheel scrolling direction |
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values: boolean |
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option default |
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------------------------------------- |
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invert null |
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*/ |
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/* |
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the tags that disable mouse-wheel when cursor is over them |
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*/ |
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disableOver:["select","option","keygen","datalist","textarea"] |
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}, |
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/* |
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scrollbar buttons |
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*/ |
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scrollButtons:{ |
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/* |
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enable scrollbar buttons |
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values: boolean |
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option default |
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------------------------------------- |
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enable null |
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*/ |
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/* |
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scrollbar buttons scrolling type |
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values (string): "stepless", "stepped" |
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*/ |
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scrollType:"stepless", |
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/* |
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scrolling amount in pixels |
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values: "auto", integer |
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*/ |
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scrollAmount:"auto" |
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/* |
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tabindex of the scrollbar buttons |
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values: false, integer |
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option default |
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------------------------------------- |
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tabindex null |
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*/ |
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}, |
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/* |
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keyboard scrolling |
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*/ |
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keyboard:{ |
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/* |
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enable scrolling via keyboard |
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values: boolean |
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*/ |
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enable:true, |
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/* |
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keyboard scrolling type |
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values (string): "stepless", "stepped" |
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*/ |
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scrollType:"stepless", |
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/* |
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scrolling amount in pixels |
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values: "auto", integer |
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*/ |
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scrollAmount:"auto" |
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}, |
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/* |
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enable content touch-swipe scrolling |
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values: boolean, integer, string (number) |
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integer values define the axis-specific minimum amount required for scrolling momentum |
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*/ |
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contentTouchScroll:25, |
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/* |
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enable/disable document (default) touch-swipe scrolling |
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*/ |
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documentTouchScroll:true, |
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/* |
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advanced option parameters |
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*/ |
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advanced:{ |
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/* |
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auto-expand content horizontally (for "x" or "yx" axis) |
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values: boolean, integer (the value 2 forces the non scrollHeight/scrollWidth method, the value 3 forces the scrollHeight/scrollWidth method) |
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option default |
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------------------------------------- |
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autoExpandHorizontalScroll null |
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*/ |
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/* |
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auto-scroll to elements with focus |
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*/ |
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autoScrollOnFocus:"input,textarea,select,button,datalist,keygen,a[tabindex],area,object,[contenteditable='true']", |
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/* |
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auto-update scrollbars on content, element or viewport resize |
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should be true for fluid layouts/elements, adding/removing content dynamically, hiding/showing elements, content with images etc. |
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values: boolean |
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*/ |
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updateOnContentResize:true, |
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/* |
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auto-update scrollbars each time each image inside the element is fully loaded |
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values: "auto", boolean |
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*/ |
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updateOnImageLoad:"auto", |
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/* |
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auto-update scrollbars based on the amount and size changes of specific selectors |
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useful when you need to update the scrollbar(s) automatically, each time a type of element is added, removed or changes its size |
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values: boolean, string (e.g. "ul li" will auto-update scrollbars each time list-items inside the element are changed) |
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a value of true (boolean) will auto-update scrollbars each time any element is changed |
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option default |
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------------------------------------- |
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updateOnSelectorChange null |
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*/ |
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/* |
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extra selectors that'll allow scrollbar dragging upon mousemove/up, pointermove/up, touchend etc. (e.g. "selector-1, selector-2") |
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option default |
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------------------------------------- |
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extraDraggableSelectors null |
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*/ |
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/* |
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extra selectors that'll release scrollbar dragging upon mouseup, pointerup, touchend etc. (e.g. "selector-1, selector-2") |
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option default |
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------------------------------------- |
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releaseDraggableSelectors null |
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*/ |
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/* |
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auto-update timeout |
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values: integer (milliseconds) |
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*/ |
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autoUpdateTimeout:60 |
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}, |
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/* |
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scrollbar theme |
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values: string (see CSS/plugin URI for a list of ready-to-use themes) |
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*/ |
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theme:"light", |
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/* |
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user defined callback functions |
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*/ |
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callbacks:{ |
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/* |
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Available callbacks: |
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callback default |
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------------------------------------- |
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onCreate null |
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onInit null |
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onScrollStart null |
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onScroll null |
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onTotalScroll null |
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onTotalScrollBack null |
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whileScrolling null |
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onOverflowY null |
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onOverflowX null |
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onOverflowYNone null |
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onOverflowXNone null |
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onImageLoad null |
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onSelectorChange null |
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onBeforeUpdate null |
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onUpdate null |
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*/ |
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onTotalScrollOffset:0, |
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onTotalScrollBackOffset:0, |
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alwaysTriggerOffsets:true |
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} |
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/* |
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add scrollbar(s) on all elements matching the current selector, now and in the future |
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values: boolean, string |
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string values: "on" (enable), "once" (disable after first invocation), "off" (disable) |
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liveSelector values: string (selector) |
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option default |
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------------------------------------- |
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live false |
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liveSelector null |
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*/ |
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}, |
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/* |
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---------------------------------------- |
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VARS, CONSTANTS |
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---------------------------------------- |
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*/ |
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totalInstances=0, /* plugin instances amount */ |
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liveTimers={}, /* live option timers */ |
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oldIE=(window.attachEvent && !window.addEventListener) ? 1 : 0, /* detect IE < 9 */ |
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touchActive=false,touchable, /* global touch vars (for touch and pointer events) */ |
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/* general plugin classes */ |
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classes=[ |
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"mCSB_dragger_onDrag","mCSB_scrollTools_onDrag","mCS_img_loaded","mCS_disabled","mCS_destroyed","mCS_no_scrollbar", |
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"mCS-autoHide","mCS-dir-rtl","mCS_no_scrollbar_y","mCS_no_scrollbar_x","mCS_y_hidden","mCS_x_hidden","mCSB_draggerContainer", |
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"mCSB_buttonUp","mCSB_buttonDown","mCSB_buttonLeft","mCSB_buttonRight" |
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], |
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/* |
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---------------------------------------- |
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METHODS |
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---------------------------------------- |
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*/ |
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methods={ |
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/* |
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plugin initialization method |
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creates the scrollbar(s), plugin data object and options |
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---------------------------------------- |
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*/ |
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init:function(options){ |
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var options=$.extend(true,{},defaults,options), |
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selector=_selector.call(this); /* validate selector */ |
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/* |
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if live option is enabled, monitor for elements matching the current selector and |
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apply scrollbar(s) when found (now and in the future) |
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*/ |
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if(options.live){ |
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var liveSelector=options.liveSelector || this.selector || defaultSelector, /* live selector(s) */ |
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$liveSelector=$(liveSelector); /* live selector(s) as jquery object */ |
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if(options.live==="off"){ |
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/* |
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disable live if requested |
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usage: $(selector).mCustomScrollbar({live:"off"}); |
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*/ |
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removeLiveTimers(liveSelector); |
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return; |
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} |
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liveTimers[liveSelector]=setTimeout(function(){ |
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/* call mCustomScrollbar fn on live selector(s) every half-second */ |
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$liveSelector.mCustomScrollbar(options); |
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if(options.live==="once" && $liveSelector.length){ |
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/* disable live after first invocation */ |
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removeLiveTimers(liveSelector); |
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} |
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},500); |
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}else{ |
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removeLiveTimers(liveSelector); |
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} |
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/* options backward compatibility (for versions < 3.0.0) and normalization */ |
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options.setWidth=(options.set_width) ? options.set_width : options.setWidth; |
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options.setHeight=(options.set_height) ? options.set_height : options.setHeight; |
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options.axis=(options.horizontalScroll) ? "x" : _findAxis(options.axis); |
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options.scrollInertia=options.scrollInertia>0 && options.scrollInertia<17 ? 17 : options.scrollInertia; |
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if(typeof options.mouseWheel!=="object" && options.mouseWheel==true){ /* old school mouseWheel option (non-object) */ |
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options.mouseWheel={enable:true,scrollAmount:"auto",axis:"y",preventDefault:false,deltaFactor:"auto",normalizeDelta:false,invert:false} |
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} |
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options.mouseWheel.scrollAmount=!options.mouseWheelPixels ? options.mouseWheel.scrollAmount : options.mouseWheelPixels; |
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options.mouseWheel.normalizeDelta=!options.advanced.normalizeMouseWheelDelta ? options.mouseWheel.normalizeDelta : options.advanced.normalizeMouseWheelDelta; |
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options.scrollButtons.scrollType=_findScrollButtonsType(options.scrollButtons.scrollType); |
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_theme(options); /* theme-specific options */ |
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/* plugin constructor */ |
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return $(selector).each(function(){ |
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var $this=$(this); |
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if(!$this.data(pluginPfx)){ /* prevent multiple instantiations */ |
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/* store options and create objects in jquery data */ |
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$this.data(pluginPfx,{ |
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idx:++totalInstances, /* instance index */ |
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opt:options, /* options */ |
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scrollRatio:{y:null,x:null}, /* scrollbar to content ratio */ |
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overflowed:null, /* overflowed axis */ |
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contentReset:{y:null,x:null}, /* object to check when content resets */ |
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bindEvents:false, /* object to check if events are bound */ |
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tweenRunning:false, /* object to check if tween is running */ |
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sequential:{}, /* sequential scrolling object */ |
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langDir:$this.css("direction"), /* detect/store direction (ltr or rtl) */ |
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cbOffsets:null, /* object to check whether callback offsets always trigger */ |
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/* |
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object to check how scrolling events where last triggered |
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"internal" (default - triggered by this script), "external" (triggered by other scripts, e.g. via scrollTo method) |
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usage: object.data("mCS").trigger |
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*/ |
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trigger:null, |
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/* |
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object to check for changes in elements in order to call the update method automatically |
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*/ |
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poll:{size:{o:0,n:0},img:{o:0,n:0},change:{o:0,n:0}} |
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}); |
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var d=$this.data(pluginPfx),o=d.opt, |
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/* HTML data attributes */ |
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htmlDataAxis=$this.data("mcs-axis"),htmlDataSbPos=$this.data("mcs-scrollbar-position"),htmlDataTheme=$this.data("mcs-theme"); |
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if(htmlDataAxis){o.axis=htmlDataAxis;} /* usage example: data-mcs-axis="y" */ |
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if(htmlDataSbPos){o.scrollbarPosition=htmlDataSbPos;} /* usage example: data-mcs-scrollbar-position="outside" */ |
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if(htmlDataTheme){ /* usage example: data-mcs-theme="minimal" */ |
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o.theme=htmlDataTheme; |
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_theme(o); /* theme-specific options */ |
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} |
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_pluginMarkup.call(this); /* add plugin markup */ |
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if(d && o.callbacks.onCreate && typeof o.callbacks.onCreate==="function"){o.callbacks.onCreate.call(this);} /* callbacks: onCreate */ |
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$("#mCSB_"+d.idx+"_container img:not(."+classes[2]+")").addClass(classes[2]); /* flag loaded images */ |
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methods.update.call(null,$this); /* call the update method */ |
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} |
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}); |
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}, |
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/* ---------------------------------------- */ |
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|
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/* |
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plugin update method |
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updates content and scrollbar(s) values, events and status |
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---------------------------------------- |
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usage: $(selector).mCustomScrollbar("update"); |
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*/ |
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update:function(el,cb){ |
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var selector=el || _selector.call(this); /* validate selector */ |
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return $(selector).each(function(){ |
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var $this=$(this); |
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if($this.data(pluginPfx)){ /* check if plugin has initialized */ |
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var d=$this.data(pluginPfx),o=d.opt, |
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mCSB_container=$("#mCSB_"+d.idx+"_container"), |
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mCustomScrollBox=$("#mCSB_"+d.idx), |
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mCSB_dragger=[$("#mCSB_"+d.idx+"_dragger_vertical"),$("#mCSB_"+d.idx+"_dragger_horizontal")]; |
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if(!mCSB_container.length){return;} |
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if(d.tweenRunning){_stop($this);} /* stop any running tweens while updating */ |
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if(cb && d && o.callbacks.onBeforeUpdate && typeof o.callbacks.onBeforeUpdate==="function"){o.callbacks.onBeforeUpdate.call(this);} /* callbacks: onBeforeUpdate */ |
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|
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/* if element was disabled or destroyed, remove class(es) */ |
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if($this.hasClass(classes[3])){$this.removeClass(classes[3]);} |
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if($this.hasClass(classes[4])){$this.removeClass(classes[4]);} |
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|
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/* css flexbox fix, detect/set max-height */ |
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mCustomScrollBox.css("max-height","none"); |
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if(mCustomScrollBox.height()!==$this.height()){mCustomScrollBox.css("max-height",$this.height());} |
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_expandContentHorizontally.call(this); /* expand content horizontally */ |
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if(o.axis!=="y" && !o.advanced.autoExpandHorizontalScroll){ |
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mCSB_container.css("width",_contentWidth(mCSB_container)); |
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} |
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d.overflowed=_overflowed.call(this); /* determine if scrolling is required */ |
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_scrollbarVisibility.call(this); /* show/hide scrollbar(s) */ |
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/* auto-adjust scrollbar dragger length analogous to content */ |
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if(o.autoDraggerLength){_setDraggerLength.call(this);} |
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_scrollRatio.call(this); /* calculate and store scrollbar to content ratio */ |
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_bindEvents.call(this); /* bind scrollbar events */ |
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|
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/* reset scrolling position and/or events */ |
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var to=[Math.abs(mCSB_container[0].offsetTop),Math.abs(mCSB_container[0].offsetLeft)]; |
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if(o.axis!=="x"){ /* y/yx axis */ |
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if(!d.overflowed[0]){ /* y scrolling is not required */ |
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_resetContentPosition.call(this); /* reset content position */ |
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if(o.axis==="y"){ |
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_unbindEvents.call(this); |
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}else if(o.axis==="yx" && d.overflowed[1]){ |
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_scrollTo($this,to[1].toString(),{dir:"x",dur:0,overwrite:"none"}); |
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} |
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}else if(mCSB_dragger[0].height()>mCSB_dragger[0].parent().height()){ |
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_resetContentPosition.call(this); /* reset content position */ |
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}else{ /* y scrolling is required */ |
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_scrollTo($this,to[0].toString(),{dir:"y",dur:0,overwrite:"none"}); |
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d.contentReset.y=null; |
|
} |
|
} |
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if(o.axis!=="y"){ /* x/yx axis */ |
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if(!d.overflowed[1]){ /* x scrolling is not required */ |
|
_resetContentPosition.call(this); /* reset content position */ |
|
if(o.axis==="x"){ |
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_unbindEvents.call(this); |
|
}else if(o.axis==="yx" && d.overflowed[0]){ |
|
_scrollTo($this,to[0].toString(),{dir:"y",dur:0,overwrite:"none"}); |
|
} |
|
}else if(mCSB_dragger[1].width()>mCSB_dragger[1].parent().width()){ |
|
_resetContentPosition.call(this); /* reset content position */ |
|
}else{ /* x scrolling is required */ |
|
_scrollTo($this,to[1].toString(),{dir:"x",dur:0,overwrite:"none"}); |
|
d.contentReset.x=null; |
|
} |
|
} |
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|
|
/* callbacks: onImageLoad, onSelectorChange, onUpdate */ |
|
if(cb && d){ |
|
if(cb===2 && o.callbacks.onImageLoad && typeof o.callbacks.onImageLoad==="function"){ |
|
o.callbacks.onImageLoad.call(this); |
|
}else if(cb===3 && o.callbacks.onSelectorChange && typeof o.callbacks.onSelectorChange==="function"){ |
|
o.callbacks.onSelectorChange.call(this); |
|
}else if(o.callbacks.onUpdate && typeof o.callbacks.onUpdate==="function"){ |
|
o.callbacks.onUpdate.call(this); |
|
} |
|
} |
|
|
|
_autoUpdate.call(this); /* initialize automatic updating (for dynamic content, fluid layouts etc.) */ |
|
|
|
} |
|
|
|
}); |
|
|
|
}, |
|
/* ---------------------------------------- */ |
|
|
|
|
|
|
|
/* |
|
plugin scrollTo method |
|
triggers a scrolling event to a specific value |
|
---------------------------------------- |
|
usage: $(selector).mCustomScrollbar("scrollTo",value,options); |
|
*/ |
|
|
|
scrollTo:function(val,options){ |
|
|
|
/* prevent silly things like $(selector).mCustomScrollbar("scrollTo",undefined); */ |
|
if(typeof val=="undefined" || val==null){return;} |
|
|
|
var selector=_selector.call(this); /* validate selector */ |
|
|
|
return $(selector).each(function(){ |
|
|
|
var $this=$(this); |
|
|
|
if($this.data(pluginPfx)){ /* check if plugin has initialized */ |
|
|
|
var d=$this.data(pluginPfx),o=d.opt, |
|
/* method default options */ |
|
methodDefaults={ |
|
trigger:"external", /* method is by default triggered externally (e.g. from other scripts) */ |
|
scrollInertia:o.scrollInertia, /* scrolling inertia (animation duration) */ |
|
scrollEasing:"mcsEaseInOut", /* animation easing */ |
|
moveDragger:false, /* move dragger instead of content */ |
|
timeout:60, /* scroll-to delay */ |
|
callbacks:true, /* enable/disable callbacks */ |
|
onStart:true, |
|
onUpdate:true, |
|
onComplete:true |
|
}, |
|
methodOptions=$.extend(true,{},methodDefaults,options), |
|
to=_arr.call(this,val),dur=methodOptions.scrollInertia>0 && methodOptions.scrollInertia<17 ? 17 : methodOptions.scrollInertia; |
|
|
|
/* translate yx values to actual scroll-to positions */ |
|
to[0]=_to.call(this,to[0],"y"); |
|
to[1]=_to.call(this,to[1],"x"); |
|
|
|
/* |
|
check if scroll-to value moves the dragger instead of content. |
|
Only pixel values apply on dragger (e.g. 100, "100px", "-=100" etc.) |
|
*/ |
|
if(methodOptions.moveDragger){ |
|
to[0]*=d.scrollRatio.y; |
|
to[1]*=d.scrollRatio.x; |
|
} |
|
|
|
methodOptions.dur=_isTabHidden() ? 0 : dur; //skip animations if browser tab is hidden |
|
|
|
setTimeout(function(){ |
|
/* do the scrolling */ |
|
if(to[0]!==null && typeof to[0]!=="undefined" && o.axis!=="x" && d.overflowed[0]){ /* scroll y */ |
|
methodOptions.dir="y"; |
|
methodOptions.overwrite="all"; |
|
_scrollTo($this,to[0].toString(),methodOptions); |
|
} |
|
if(to[1]!==null && typeof to[1]!=="undefined" && o.axis!=="y" && d.overflowed[1]){ /* scroll x */ |
|
methodOptions.dir="x"; |
|
methodOptions.overwrite="none"; |
|
_scrollTo($this,to[1].toString(),methodOptions); |
|
} |
|
},methodOptions.timeout); |
|
|
|
} |
|
|
|
}); |
|
|
|
}, |
|
/* ---------------------------------------- */ |
|
|
|
|
|
|
|
/* |
|
plugin stop method |
|
stops scrolling animation |
|
---------------------------------------- |
|
usage: $(selector).mCustomScrollbar("stop"); |
|
*/ |
|
stop:function(){ |
|
|
|
var selector=_selector.call(this); /* validate selector */ |
|
|
|
return $(selector).each(function(){ |
|
|
|
var $this=$(this); |
|
|
|
if($this.data(pluginPfx)){ /* check if plugin has initialized */ |
|
|
|
_stop($this); |
|
|
|
} |
|
|
|
}); |
|
|
|
}, |
|
/* ---------------------------------------- */ |
|
|
|
|
|
|
|
/* |
|
plugin disable method |
|
temporarily disables the scrollbar(s) |
|
---------------------------------------- |
|
usage: $(selector).mCustomScrollbar("disable",reset); |
|
reset (boolean): resets content position to 0 |
|
*/ |
|
disable:function(r){ |
|
|
|
var selector=_selector.call(this); /* validate selector */ |
|
|
|
return $(selector).each(function(){ |
|
|
|
var $this=$(this); |
|
|
|
if($this.data(pluginPfx)){ /* check if plugin has initialized */ |
|
|
|
var d=$this.data(pluginPfx); |
|
|
|
_autoUpdate.call(this,"remove"); /* remove automatic updating */ |
|
|
|
_unbindEvents.call(this); /* unbind events */ |
|
|
|
if(r){_resetContentPosition.call(this);} /* reset content position */ |
|
|
|
_scrollbarVisibility.call(this,true); /* show/hide scrollbar(s) */ |
|
|
|
$this.addClass(classes[3]); /* add disable class */ |
|
|
|
} |
|
|
|
}); |
|
|
|
}, |
|
/* ---------------------------------------- */ |
|
|
|
|
|
|
|
/* |
|
plugin destroy method |
|
completely removes the scrollbar(s) and returns the element to its original state |
|
---------------------------------------- |
|
usage: $(selector).mCustomScrollbar("destroy"); |
|
*/ |
|
destroy:function(){ |
|
|
|
var selector=_selector.call(this); /* validate selector */ |
|
|
|
return $(selector).each(function(){ |
|
|
|
var $this=$(this); |
|
|
|
if($this.data(pluginPfx)){ /* check if plugin has initialized */ |
|
|
|
var d=$this.data(pluginPfx),o=d.opt, |
|
mCustomScrollBox=$("#mCSB_"+d.idx), |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"), |
|
scrollbar=$(".mCSB_"+d.idx+"_scrollbar"); |
|
|
|
if(o.live){removeLiveTimers(o.liveSelector || $(selector).selector);} /* remove live timers */ |
|
|
|
_autoUpdate.call(this,"remove"); /* remove automatic updating */ |
|
|
|
_unbindEvents.call(this); /* unbind events */ |
|
|
|
_resetContentPosition.call(this); /* reset content position */ |
|
|
|
$this.removeData(pluginPfx); /* remove plugin data object */ |
|
|
|
_delete(this,"mcs"); /* delete callbacks object */ |
|
|
|
/* remove plugin markup */ |
|
scrollbar.remove(); /* remove scrollbar(s) first (those can be either inside or outside plugin's inner wrapper) */ |
|
mCSB_container.find("img."+classes[2]).removeClass(classes[2]); /* remove loaded images flag */ |
|
mCustomScrollBox.replaceWith(mCSB_container.contents()); /* replace plugin's inner wrapper with the original content */ |
|
/* remove plugin classes from the element and add destroy class */ |
|
$this.removeClass(pluginNS+" _"+pluginPfx+"_"+d.idx+" "+classes[6]+" "+classes[7]+" "+classes[5]+" "+classes[3]).addClass(classes[4]); |
|
|
|
} |
|
|
|
}); |
|
|
|
} |
|
/* ---------------------------------------- */ |
|
|
|
}, |
|
|
|
|
|
|
|
|
|
|
|
/* |
|
---------------------------------------- |
|
FUNCTIONS |
|
---------------------------------------- |
|
*/ |
|
|
|
/* validates selector (if selector is invalid or undefined uses the default one) */ |
|
_selector=function(){ |
|
return (typeof $(this)!=="object" || $(this).length<1) ? defaultSelector : this; |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* changes options according to theme */ |
|
_theme=function(obj){ |
|
var fixedSizeScrollbarThemes=["rounded","rounded-dark","rounded-dots","rounded-dots-dark"], |
|
nonExpandedScrollbarThemes=["rounded-dots","rounded-dots-dark","3d","3d-dark","3d-thick","3d-thick-dark","inset","inset-dark","inset-2","inset-2-dark","inset-3","inset-3-dark"], |
|
disabledScrollButtonsThemes=["minimal","minimal-dark"], |
|
enabledAutoHideScrollbarThemes=["minimal","minimal-dark"], |
|
scrollbarPositionOutsideThemes=["minimal","minimal-dark"]; |
|
obj.autoDraggerLength=$.inArray(obj.theme,fixedSizeScrollbarThemes) > -1 ? false : obj.autoDraggerLength; |
|
obj.autoExpandScrollbar=$.inArray(obj.theme,nonExpandedScrollbarThemes) > -1 ? false : obj.autoExpandScrollbar; |
|
obj.scrollButtons.enable=$.inArray(obj.theme,disabledScrollButtonsThemes) > -1 ? false : obj.scrollButtons.enable; |
|
obj.autoHideScrollbar=$.inArray(obj.theme,enabledAutoHideScrollbarThemes) > -1 ? true : obj.autoHideScrollbar; |
|
obj.scrollbarPosition=$.inArray(obj.theme,scrollbarPositionOutsideThemes) > -1 ? "outside" : obj.scrollbarPosition; |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* live option timers removal */ |
|
removeLiveTimers=function(selector){ |
|
if(liveTimers[selector]){ |
|
clearTimeout(liveTimers[selector]); |
|
_delete(liveTimers,selector); |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* normalizes axis option to valid values: "y", "x", "yx" */ |
|
_findAxis=function(val){ |
|
return (val==="yx" || val==="xy" || val==="auto") ? "yx" : (val==="x" || val==="horizontal") ? "x" : "y"; |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* normalizes scrollButtons.scrollType option to valid values: "stepless", "stepped" */ |
|
_findScrollButtonsType=function(val){ |
|
return (val==="stepped" || val==="pixels" || val==="step" || val==="click") ? "stepped" : "stepless"; |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* generates plugin markup */ |
|
_pluginMarkup=function(){ |
|
var $this=$(this),d=$this.data(pluginPfx),o=d.opt, |
|
expandClass=o.autoExpandScrollbar ? " "+classes[1]+"_expand" : "", |
|
scrollbar=["<div id='mCSB_"+d.idx+"_scrollbar_vertical' class='mCSB_scrollTools mCSB_"+d.idx+"_scrollbar mCS-"+o.theme+" mCSB_scrollTools_vertical"+expandClass+"'><div class='"+classes[12]+"'><div id='mCSB_"+d.idx+"_dragger_vertical' class='mCSB_dragger' style='position:absolute;'><div class='mCSB_dragger_bar' /></div><div class='mCSB_draggerRail' /></div></div>","<div id='mCSB_"+d.idx+"_scrollbar_horizontal' class='mCSB_scrollTools mCSB_"+d.idx+"_scrollbar mCS-"+o.theme+" mCSB_scrollTools_horizontal"+expandClass+"'><div class='"+classes[12]+"'><div id='mCSB_"+d.idx+"_dragger_horizontal' class='mCSB_dragger' style='position:absolute;'><div class='mCSB_dragger_bar' /></div><div class='mCSB_draggerRail' /></div></div>"], |
|
wrapperClass=o.axis==="yx" ? "mCSB_vertical_horizontal" : o.axis==="x" ? "mCSB_horizontal" : "mCSB_vertical", |
|
scrollbars=o.axis==="yx" ? scrollbar[0]+scrollbar[1] : o.axis==="x" ? scrollbar[1] : scrollbar[0], |
|
contentWrapper=o.axis==="yx" ? "<div id='mCSB_"+d.idx+"_container_wrapper' class='mCSB_container_wrapper' />" : "", |
|
autoHideClass=o.autoHideScrollbar ? " "+classes[6] : "", |
|
scrollbarDirClass=(o.axis!=="x" && d.langDir==="rtl") ? " "+classes[7] : ""; |
|
if(o.setWidth){$this.css("width",o.setWidth);} /* set element width */ |
|
if(o.setHeight){$this.css("height",o.setHeight);} /* set element height */ |
|
o.setLeft=(o.axis!=="y" && d.langDir==="rtl") ? "989999px" : o.setLeft; /* adjust left position for rtl direction */ |
|
$this.addClass(pluginNS+" _"+pluginPfx+"_"+d.idx+autoHideClass+scrollbarDirClass).wrapInner("<div id='mCSB_"+d.idx+"' class='mCustomScrollBox mCS-"+o.theme+" "+wrapperClass+"'><div id='mCSB_"+d.idx+"_container' class='mCSB_container' style='position:relative; top:"+o.setTop+"; left:"+o.setLeft+";' dir='"+d.langDir+"' /></div>"); |
|
var mCustomScrollBox=$("#mCSB_"+d.idx), |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"); |
|
if(o.axis!=="y" && !o.advanced.autoExpandHorizontalScroll){ |
|
mCSB_container.css("width",_contentWidth(mCSB_container)); |
|
} |
|
if(o.scrollbarPosition==="outside"){ |
|
if($this.css("position")==="static"){ /* requires elements with non-static position */ |
|
$this.css("position","relative"); |
|
} |
|
$this.css("overflow","visible"); |
|
mCustomScrollBox.addClass("mCSB_outside").after(scrollbars); |
|
}else{ |
|
mCustomScrollBox.addClass("mCSB_inside").append(scrollbars); |
|
mCSB_container.wrap(contentWrapper); |
|
} |
|
_scrollButtons.call(this); /* add scrollbar buttons */ |
|
/* minimum dragger length */ |
|
var mCSB_dragger=[$("#mCSB_"+d.idx+"_dragger_vertical"),$("#mCSB_"+d.idx+"_dragger_horizontal")]; |
|
mCSB_dragger[0].css("min-height",mCSB_dragger[0].height()); |
|
mCSB_dragger[1].css("min-width",mCSB_dragger[1].width()); |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* calculates content width */ |
|
_contentWidth=function(el){ |
|
var val=[el[0].scrollWidth,Math.max.apply(Math,el.children().map(function(){return $(this).outerWidth(true);}).get())],w=el.parent().width(); |
|
return val[0]>w ? val[0] : val[1]>w ? val[1] : "100%"; |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* expands content horizontally */ |
|
_expandContentHorizontally=function(){ |
|
var $this=$(this),d=$this.data(pluginPfx),o=d.opt, |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"); |
|
if(o.advanced.autoExpandHorizontalScroll && o.axis!=="y"){ |
|
/* calculate scrollWidth */ |
|
mCSB_container.css({"width":"auto","min-width":0,"overflow-x":"scroll"}); |
|
var w=Math.ceil(mCSB_container[0].scrollWidth); |
|
if(o.advanced.autoExpandHorizontalScroll===3 || (o.advanced.autoExpandHorizontalScroll!==2 && w>mCSB_container.parent().width())){ |
|
mCSB_container.css({"width":w,"min-width":"100%","overflow-x":"inherit"}); |
|
}else{ |
|
/* |
|
wrap content with an infinite width div and set its position to absolute and width to auto. |
|
Setting width to auto before calculating the actual width is important! |
|
We must let the browser set the width as browser zoom values are impossible to calculate. |
|
*/ |
|
mCSB_container.css({"overflow-x":"inherit","position":"absolute"}) |
|
.wrap("<div class='mCSB_h_wrapper' style='position:relative; left:0; width:999999px;' />") |
|
.css({ /* set actual width, original position and un-wrap */ |
|
/* |
|
get the exact width (with decimals) and then round-up. |
|
Using jquery outerWidth() will round the width value which will mess up with inner elements that have non-integer width |
|
*/ |
|
"width":(Math.ceil(mCSB_container[0].getBoundingClientRect().right+0.4)-Math.floor(mCSB_container[0].getBoundingClientRect().left)), |
|
"min-width":"100%", |
|
"position":"relative" |
|
}).unwrap(); |
|
} |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* adds scrollbar buttons */ |
|
_scrollButtons=function(){ |
|
var $this=$(this),d=$this.data(pluginPfx),o=d.opt, |
|
mCSB_scrollTools=$(".mCSB_"+d.idx+"_scrollbar:first"), |
|
tabindex=!_isNumeric(o.scrollButtons.tabindex) ? "" : "tabindex='"+o.scrollButtons.tabindex+"'", |
|
btnHTML=[ |
|
"<a href='#' class='"+classes[13]+"' "+tabindex+" />", |
|
"<a href='#' class='"+classes[14]+"' "+tabindex+" />", |
|
"<a href='#' class='"+classes[15]+"' "+tabindex+" />", |
|
"<a href='#' class='"+classes[16]+"' "+tabindex+" />" |
|
], |
|
btn=[(o.axis==="x" ? btnHTML[2] : btnHTML[0]),(o.axis==="x" ? btnHTML[3] : btnHTML[1]),btnHTML[2],btnHTML[3]]; |
|
if(o.scrollButtons.enable){ |
|
mCSB_scrollTools.prepend(btn[0]).append(btn[1]).next(".mCSB_scrollTools").prepend(btn[2]).append(btn[3]); |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* auto-adjusts scrollbar dragger length */ |
|
_setDraggerLength=function(){ |
|
var $this=$(this),d=$this.data(pluginPfx), |
|
mCustomScrollBox=$("#mCSB_"+d.idx), |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"), |
|
mCSB_dragger=[$("#mCSB_"+d.idx+"_dragger_vertical"),$("#mCSB_"+d.idx+"_dragger_horizontal")], |
|
ratio=[mCustomScrollBox.height()/mCSB_container.outerHeight(false),mCustomScrollBox.width()/mCSB_container.outerWidth(false)], |
|
l=[ |
|
parseInt(mCSB_dragger[0].css("min-height")),Math.round(ratio[0]*mCSB_dragger[0].parent().height()), |
|
parseInt(mCSB_dragger[1].css("min-width")),Math.round(ratio[1]*mCSB_dragger[1].parent().width()) |
|
], |
|
h=oldIE && (l[1]<l[0]) ? l[0] : l[1],w=oldIE && (l[3]<l[2]) ? l[2] : l[3]; |
|
mCSB_dragger[0].css({ |
|
"height":h,"max-height":(mCSB_dragger[0].parent().height()-10) |
|
}).find(".mCSB_dragger_bar").css({"line-height":l[0]+"px"}); |
|
mCSB_dragger[1].css({ |
|
"width":w,"max-width":(mCSB_dragger[1].parent().width()-10) |
|
}); |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* calculates scrollbar to content ratio */ |
|
_scrollRatio=function(){ |
|
var $this=$(this),d=$this.data(pluginPfx), |
|
mCustomScrollBox=$("#mCSB_"+d.idx), |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"), |
|
mCSB_dragger=[$("#mCSB_"+d.idx+"_dragger_vertical"),$("#mCSB_"+d.idx+"_dragger_horizontal")], |
|
scrollAmount=[mCSB_container.outerHeight(false)-mCustomScrollBox.height(),mCSB_container.outerWidth(false)-mCustomScrollBox.width()], |
|
ratio=[ |
|
scrollAmount[0]/(mCSB_dragger[0].parent().height()-mCSB_dragger[0].height()), |
|
scrollAmount[1]/(mCSB_dragger[1].parent().width()-mCSB_dragger[1].width()) |
|
]; |
|
d.scrollRatio={y:ratio[0],x:ratio[1]}; |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* toggles scrolling classes */ |
|
_onDragClasses=function(el,action,xpnd){ |
|
var expandClass=xpnd ? classes[0]+"_expanded" : "", |
|
scrollbar=el.closest(".mCSB_scrollTools"); |
|
if(action==="active"){ |
|
el.toggleClass(classes[0]+" "+expandClass); scrollbar.toggleClass(classes[1]); |
|
el[0]._draggable=el[0]._draggable ? 0 : 1; |
|
}else{ |
|
if(!el[0]._draggable){ |
|
if(action==="hide"){ |
|
el.removeClass(classes[0]); scrollbar.removeClass(classes[1]); |
|
}else{ |
|
el.addClass(classes[0]); scrollbar.addClass(classes[1]); |
|
} |
|
} |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* checks if content overflows its container to determine if scrolling is required */ |
|
_overflowed=function(){ |
|
var $this=$(this),d=$this.data(pluginPfx), |
|
mCustomScrollBox=$("#mCSB_"+d.idx), |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"), |
|
contentHeight=d.overflowed==null ? mCSB_container.height() : mCSB_container.outerHeight(false), |
|
contentWidth=d.overflowed==null ? mCSB_container.width() : mCSB_container.outerWidth(false), |
|
h=mCSB_container[0].scrollHeight,w=mCSB_container[0].scrollWidth; |
|
if(h>contentHeight){contentHeight=h;} |
|
if(w>contentWidth){contentWidth=w;} |
|
return [contentHeight>mCustomScrollBox.height(),contentWidth>mCustomScrollBox.width()]; |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* resets content position to 0 */ |
|
_resetContentPosition=function(){ |
|
var $this=$(this),d=$this.data(pluginPfx),o=d.opt, |
|
mCustomScrollBox=$("#mCSB_"+d.idx), |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"), |
|
mCSB_dragger=[$("#mCSB_"+d.idx+"_dragger_vertical"),$("#mCSB_"+d.idx+"_dragger_horizontal")]; |
|
_stop($this); /* stop any current scrolling before resetting */ |
|
if((o.axis!=="x" && !d.overflowed[0]) || (o.axis==="y" && d.overflowed[0])){ /* reset y */ |
|
mCSB_dragger[0].add(mCSB_container).css("top",0); |
|
_scrollTo($this,"_resetY"); |
|
} |
|
if((o.axis!=="y" && !d.overflowed[1]) || (o.axis==="x" && d.overflowed[1])){ /* reset x */ |
|
var cx=dx=0; |
|
if(d.langDir==="rtl"){ /* adjust left position for rtl direction */ |
|
cx=mCustomScrollBox.width()-mCSB_container.outerWidth(false); |
|
dx=Math.abs(cx/d.scrollRatio.x); |
|
} |
|
mCSB_container.css("left",cx); |
|
mCSB_dragger[1].css("left",dx); |
|
_scrollTo($this,"_resetX"); |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* binds scrollbar events */ |
|
_bindEvents=function(){ |
|
var $this=$(this),d=$this.data(pluginPfx),o=d.opt; |
|
if(!d.bindEvents){ /* check if events are already bound */ |
|
_draggable.call(this); |
|
if(o.contentTouchScroll){_contentDraggable.call(this);} |
|
_selectable.call(this); |
|
if(o.mouseWheel.enable){ /* bind mousewheel fn when plugin is available */ |
|
function _mwt(){ |
|
mousewheelTimeout=setTimeout(function(){ |
|
if(!$.event.special.mousewheel){ |
|
_mwt(); |
|
}else{ |
|
clearTimeout(mousewheelTimeout); |
|
_mousewheel.call($this[0]); |
|
} |
|
},100); |
|
} |
|
var mousewheelTimeout; |
|
_mwt(); |
|
} |
|
_draggerRail.call(this); |
|
_wrapperScroll.call(this); |
|
if(o.advanced.autoScrollOnFocus){_focus.call(this);} |
|
if(o.scrollButtons.enable){_buttons.call(this);} |
|
if(o.keyboard.enable){_keyboard.call(this);} |
|
d.bindEvents=true; |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* unbinds scrollbar events */ |
|
_unbindEvents=function(){ |
|
var $this=$(this),d=$this.data(pluginPfx),o=d.opt, |
|
namespace=pluginPfx+"_"+d.idx, |
|
sb=".mCSB_"+d.idx+"_scrollbar", |
|
sel=$("#mCSB_"+d.idx+",#mCSB_"+d.idx+"_container,#mCSB_"+d.idx+"_container_wrapper,"+sb+" ."+classes[12]+",#mCSB_"+d.idx+"_dragger_vertical,#mCSB_"+d.idx+"_dragger_horizontal,"+sb+">a"), |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"); |
|
if(o.advanced.releaseDraggableSelectors){sel.add($(o.advanced.releaseDraggableSelectors));} |
|
if(o.advanced.extraDraggableSelectors){sel.add($(o.advanced.extraDraggableSelectors));} |
|
if(d.bindEvents){ /* check if events are bound */ |
|
/* unbind namespaced events from document/selectors */ |
|
$(document).add($(!_canAccessIFrame() || top.document)).unbind("."+namespace); |
|
sel.each(function(){ |
|
$(this).unbind("."+namespace); |
|
}); |
|
/* clear and delete timeouts/objects */ |
|
clearTimeout($this[0]._focusTimeout); _delete($this[0],"_focusTimeout"); |
|
clearTimeout(d.sequential.step); _delete(d.sequential,"step"); |
|
clearTimeout(mCSB_container[0].onCompleteTimeout); _delete(mCSB_container[0],"onCompleteTimeout"); |
|
d.bindEvents=false; |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* toggles scrollbar visibility */ |
|
_scrollbarVisibility=function(disabled){ |
|
var $this=$(this),d=$this.data(pluginPfx),o=d.opt, |
|
contentWrapper=$("#mCSB_"+d.idx+"_container_wrapper"), |
|
content=contentWrapper.length ? contentWrapper : $("#mCSB_"+d.idx+"_container"), |
|
scrollbar=[$("#mCSB_"+d.idx+"_scrollbar_vertical"),$("#mCSB_"+d.idx+"_scrollbar_horizontal")], |
|
mCSB_dragger=[scrollbar[0].find(".mCSB_dragger"),scrollbar[1].find(".mCSB_dragger")]; |
|
if(o.axis!=="x"){ |
|
if(d.overflowed[0] && !disabled){ |
|
scrollbar[0].add(mCSB_dragger[0]).add(scrollbar[0].children("a")).css("display","block"); |
|
content.removeClass(classes[8]+" "+classes[10]); |
|
}else{ |
|
if(o.alwaysShowScrollbar){ |
|
if(o.alwaysShowScrollbar!==2){mCSB_dragger[0].css("display","none");} |
|
content.removeClass(classes[10]); |
|
}else{ |
|
scrollbar[0].css("display","none"); |
|
content.addClass(classes[10]); |
|
} |
|
content.addClass(classes[8]); |
|
} |
|
} |
|
if(o.axis!=="y"){ |
|
if(d.overflowed[1] && !disabled){ |
|
scrollbar[1].add(mCSB_dragger[1]).add(scrollbar[1].children("a")).css("display","block"); |
|
content.removeClass(classes[9]+" "+classes[11]); |
|
}else{ |
|
if(o.alwaysShowScrollbar){ |
|
if(o.alwaysShowScrollbar!==2){mCSB_dragger[1].css("display","none");} |
|
content.removeClass(classes[11]); |
|
}else{ |
|
scrollbar[1].css("display","none"); |
|
content.addClass(classes[11]); |
|
} |
|
content.addClass(classes[9]); |
|
} |
|
} |
|
if(!d.overflowed[0] && !d.overflowed[1]){ |
|
$this.addClass(classes[5]); |
|
}else{ |
|
$this.removeClass(classes[5]); |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* returns input coordinates of pointer, touch and mouse events (relative to document) */ |
|
_coordinates=function(e){ |
|
var t=e.type,o=e.target.ownerDocument!==document && frameElement!==null ? [$(frameElement).offset().top,$(frameElement).offset().left] : null, |
|
io=_canAccessIFrame() && e.target.ownerDocument!==top.document && frameElement!==null ? [$(e.view.frameElement).offset().top,$(e.view.frameElement).offset().left] : [0,0]; |
|
switch(t){ |
|
case "pointerdown": case "MSPointerDown": case "pointermove": case "MSPointerMove": case "pointerup": case "MSPointerUp": |
|
return o ? [e.originalEvent.pageY-o[0]+io[0],e.originalEvent.pageX-o[1]+io[1],false] : [e.originalEvent.pageY,e.originalEvent.pageX,false]; |
|
break; |
|
case "touchstart": case "touchmove": case "touchend": |
|
var touch=e.originalEvent.touches[0] || e.originalEvent.changedTouches[0], |
|
touches=e.originalEvent.touches.length || e.originalEvent.changedTouches.length; |
|
return e.target.ownerDocument!==document ? [touch.screenY,touch.screenX,touches>1] : [touch.pageY,touch.pageX,touches>1]; |
|
break; |
|
default: |
|
return o ? [e.pageY-o[0]+io[0],e.pageX-o[1]+io[1],false] : [e.pageY,e.pageX,false]; |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* |
|
SCROLLBAR DRAG EVENTS |
|
scrolls content via scrollbar dragging |
|
*/ |
|
_draggable=function(){ |
|
var $this=$(this),d=$this.data(pluginPfx),o=d.opt, |
|
namespace=pluginPfx+"_"+d.idx, |
|
draggerId=["mCSB_"+d.idx+"_dragger_vertical","mCSB_"+d.idx+"_dragger_horizontal"], |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"), |
|
mCSB_dragger=$("#"+draggerId[0]+",#"+draggerId[1]), |
|
draggable,dragY,dragX, |
|
rds=o.advanced.releaseDraggableSelectors ? mCSB_dragger.add($(o.advanced.releaseDraggableSelectors)) : mCSB_dragger, |
|
eds=o.advanced.extraDraggableSelectors ? $(!_canAccessIFrame() || top.document).add($(o.advanced.extraDraggableSelectors)) : $(!_canAccessIFrame() || top.document); |
|
mCSB_dragger.bind("contextmenu."+namespace,function(e){ |
|
e.preventDefault(); //prevent right click |
|
}).bind("mousedown."+namespace+" touchstart."+namespace+" pointerdown."+namespace+" MSPointerDown."+namespace,function(e){ |
|
e.stopImmediatePropagation(); |
|
e.preventDefault(); |
|
if(!_mouseBtnLeft(e)){return;} /* left mouse button only */ |
|
touchActive=true; |
|
if(oldIE){document.onselectstart=function(){return false;}} /* disable text selection for IE < 9 */ |
|
_iframe.call(mCSB_container,false); /* enable scrollbar dragging over iframes by disabling their events */ |
|
_stop($this); |
|
draggable=$(this); |
|
var offset=draggable.offset(),y=_coordinates(e)[0]-offset.top,x=_coordinates(e)[1]-offset.left, |
|
h=draggable.height()+offset.top,w=draggable.width()+offset.left; |
|
if(y<h && y>0 && x<w && x>0){ |
|
dragY=y; |
|
dragX=x; |
|
} |
|
_onDragClasses(draggable,"active",o.autoExpandScrollbar); |
|
}).bind("touchmove."+namespace,function(e){ |
|
e.stopImmediatePropagation(); |
|
e.preventDefault(); |
|
var offset=draggable.offset(),y=_coordinates(e)[0]-offset.top,x=_coordinates(e)[1]-offset.left; |
|
_drag(dragY,dragX,y,x); |
|
}); |
|
$(document).add(eds).bind("mousemove."+namespace+" pointermove."+namespace+" MSPointerMove."+namespace,function(e){ |
|
if(draggable){ |
|
var offset=draggable.offset(),y=_coordinates(e)[0]-offset.top,x=_coordinates(e)[1]-offset.left; |
|
if(dragY===y && dragX===x){return;} /* has it really moved? */ |
|
_drag(dragY,dragX,y,x); |
|
} |
|
}).add(rds).bind("mouseup."+namespace+" touchend."+namespace+" pointerup."+namespace+" MSPointerUp."+namespace,function(e){ |
|
if(draggable){ |
|
_onDragClasses(draggable,"active",o.autoExpandScrollbar); |
|
draggable=null; |
|
} |
|
touchActive=false; |
|
if(oldIE){document.onselectstart=null;} /* enable text selection for IE < 9 */ |
|
_iframe.call(mCSB_container,true); /* enable iframes events */ |
|
}); |
|
function _drag(dragY,dragX,y,x){ |
|
mCSB_container[0].idleTimer=o.scrollInertia<233 ? 250 : 0; |
|
if(draggable.attr("id")===draggerId[1]){ |
|
var dir="x",to=((draggable[0].offsetLeft-dragX)+x)*d.scrollRatio.x; |
|
}else{ |
|
var dir="y",to=((draggable[0].offsetTop-dragY)+y)*d.scrollRatio.y; |
|
} |
|
_scrollTo($this,to.toString(),{dir:dir,drag:true}); |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* |
|
TOUCH SWIPE EVENTS |
|
scrolls content via touch swipe |
|
Emulates the native touch-swipe scrolling with momentum found in iOS, Android and WP devices |
|
*/ |
|
_contentDraggable=function(){ |
|
var $this=$(this),d=$this.data(pluginPfx),o=d.opt, |
|
namespace=pluginPfx+"_"+d.idx, |
|
mCustomScrollBox=$("#mCSB_"+d.idx), |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"), |
|
mCSB_dragger=[$("#mCSB_"+d.idx+"_dragger_vertical"),$("#mCSB_"+d.idx+"_dragger_horizontal")], |
|
draggable,dragY,dragX,touchStartY,touchStartX,touchMoveY=[],touchMoveX=[],startTime,runningTime,endTime,distance,speed,amount, |
|
durA=0,durB,overwrite=o.axis==="yx" ? "none" : "all",touchIntent=[],touchDrag,docDrag, |
|
iframe=mCSB_container.find("iframe"), |
|
events=[ |
|
"touchstart."+namespace+" pointerdown."+namespace+" MSPointerDown."+namespace, //start |
|
"touchmove."+namespace+" pointermove."+namespace+" MSPointerMove."+namespace, //move |
|
"touchend."+namespace+" pointerup."+namespace+" MSPointerUp."+namespace //end |
|
], |
|
touchAction=document.body.style.touchAction!==undefined && document.body.style.touchAction!==""; |
|
mCSB_container.bind(events[0],function(e){ |
|
_onTouchstart(e); |
|
}).bind(events[1],function(e){ |
|
_onTouchmove(e); |
|
}); |
|
mCustomScrollBox.bind(events[0],function(e){ |
|
_onTouchstart2(e); |
|
}).bind(events[2],function(e){ |
|
_onTouchend(e); |
|
}); |
|
if(iframe.length){ |
|
iframe.each(function(){ |
|
$(this).bind("load",function(){ |
|
/* bind events on accessible iframes */ |
|
if(_canAccessIFrame(this)){ |
|
$(this.contentDocument || this.contentWindow.document).bind(events[0],function(e){ |
|
_onTouchstart(e); |
|
_onTouchstart2(e); |
|
}).bind(events[1],function(e){ |
|
_onTouchmove(e); |
|
}).bind(events[2],function(e){ |
|
_onTouchend(e); |
|
}); |
|
} |
|
}); |
|
}); |
|
} |
|
function _onTouchstart(e){ |
|
if(!_pointerTouch(e) || touchActive || _coordinates(e)[2]){touchable=0; return;} |
|
touchable=1; touchDrag=0; docDrag=0; draggable=1; |
|
$this.removeClass("mCS_touch_action"); |
|
var offset=mCSB_container.offset(); |
|
dragY=_coordinates(e)[0]-offset.top; |
|
dragX=_coordinates(e)[1]-offset.left; |
|
touchIntent=[_coordinates(e)[0],_coordinates(e)[1]]; |
|
} |
|
function _onTouchmove(e){ |
|
if(!_pointerTouch(e) || touchActive || _coordinates(e)[2]){return;} |
|
if(!o.documentTouchScroll){e.preventDefault();} |
|
e.stopImmediatePropagation(); |
|
if(docDrag && !touchDrag){return;} |
|
if(draggable){ |
|
runningTime=_getTime(); |
|
var offset=mCustomScrollBox.offset(),y=_coordinates(e)[0]-offset.top,x=_coordinates(e)[1]-offset.left, |
|
easing="mcsLinearOut"; |
|
touchMoveY.push(y); |
|
touchMoveX.push(x); |
|
touchIntent[2]=Math.abs(_coordinates(e)[0]-touchIntent[0]); touchIntent[3]=Math.abs(_coordinates(e)[1]-touchIntent[1]); |
|
if(d.overflowed[0]){ |
|
var limit=mCSB_dragger[0].parent().height()-mCSB_dragger[0].height(), |
|
prevent=((dragY-y)>0 && (y-dragY)>-(limit*d.scrollRatio.y) && (touchIntent[3]*2<touchIntent[2] || o.axis==="yx")); |
|
} |
|
if(d.overflowed[1]){ |
|
var limitX=mCSB_dragger[1].parent().width()-mCSB_dragger[1].width(), |
|
preventX=((dragX-x)>0 && (x-dragX)>-(limitX*d.scrollRatio.x) && (touchIntent[2]*2<touchIntent[3] || o.axis==="yx")); |
|
} |
|
if(prevent || preventX){ /* prevent native document scrolling */ |
|
if(!touchAction){e.preventDefault();} |
|
touchDrag=1; |
|
}else{ |
|
docDrag=1; |
|
$this.addClass("mCS_touch_action"); |
|
} |
|
if(touchAction){e.preventDefault();} |
|
amount=o.axis==="yx" ? [(dragY-y),(dragX-x)] : o.axis==="x" ? [null,(dragX-x)] : [(dragY-y),null]; |
|
mCSB_container[0].idleTimer=250; |
|
if(d.overflowed[0]){_drag(amount[0],durA,easing,"y","all",true);} |
|
if(d.overflowed[1]){_drag(amount[1],durA,easing,"x",overwrite,true);} |
|
} |
|
} |
|
function _onTouchstart2(e){ |
|
if(!_pointerTouch(e) || touchActive || _coordinates(e)[2]){touchable=0; return;} |
|
touchable=1; |
|
e.stopImmediatePropagation(); |
|
_stop($this); |
|
startTime=_getTime(); |
|
var offset=mCustomScrollBox.offset(); |
|
touchStartY=_coordinates(e)[0]-offset.top; |
|
touchStartX=_coordinates(e)[1]-offset.left; |
|
touchMoveY=[]; touchMoveX=[]; |
|
} |
|
function _onTouchend(e){ |
|
if(!_pointerTouch(e) || touchActive || _coordinates(e)[2]){return;} |
|
draggable=0; |
|
e.stopImmediatePropagation(); |
|
touchDrag=0; docDrag=0; |
|
endTime=_getTime(); |
|
var offset=mCustomScrollBox.offset(),y=_coordinates(e)[0]-offset.top,x=_coordinates(e)[1]-offset.left; |
|
if((endTime-runningTime)>30){return;} |
|
speed=1000/(endTime-startTime); |
|
var easing="mcsEaseOut",slow=speed<2.5, |
|
diff=slow ? [touchMoveY[touchMoveY.length-2],touchMoveX[touchMoveX.length-2]] : [0,0]; |
|
distance=slow ? [(y-diff[0]),(x-diff[1])] : [y-touchStartY,x-touchStartX]; |
|
var absDistance=[Math.abs(distance[0]),Math.abs(distance[1])]; |
|
speed=slow ? [Math.abs(distance[0]/4),Math.abs(distance[1]/4)] : [speed,speed]; |
|
var a=[ |
|
Math.abs(mCSB_container[0].offsetTop)-(distance[0]*_m((absDistance[0]/speed[0]),speed[0])), |
|
Math.abs(mCSB_container[0].offsetLeft)-(distance[1]*_m((absDistance[1]/speed[1]),speed[1])) |
|
]; |
|
amount=o.axis==="yx" ? [a[0],a[1]] : o.axis==="x" ? [null,a[1]] : [a[0],null]; |
|
durB=[(absDistance[0]*4)+o.scrollInertia,(absDistance[1]*4)+o.scrollInertia]; |
|
var md=parseInt(o.contentTouchScroll) || 0; /* absolute minimum distance required */ |
|
amount[0]=absDistance[0]>md ? amount[0] : 0; |
|
amount[1]=absDistance[1]>md ? amount[1] : 0; |
|
if(d.overflowed[0]){_drag(amount[0],durB[0],easing,"y",overwrite,false);} |
|
if(d.overflowed[1]){_drag(amount[1],durB[1],easing,"x",overwrite,false);} |
|
} |
|
function _m(ds,s){ |
|
var r=[s*1.5,s*2,s/1.5,s/2]; |
|
if(ds>90){ |
|
return s>4 ? r[0] : r[3]; |
|
}else if(ds>60){ |
|
return s>3 ? r[3] : r[2]; |
|
}else if(ds>30){ |
|
return s>8 ? r[1] : s>6 ? r[0] : s>4 ? s : r[2]; |
|
}else{ |
|
return s>8 ? s : r[3]; |
|
} |
|
} |
|
function _drag(amount,dur,easing,dir,overwrite,drag){ |
|
if(!amount){return;} |
|
_scrollTo($this,amount.toString(),{dur:dur,scrollEasing:easing,dir:dir,overwrite:overwrite,drag:drag}); |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* |
|
SELECT TEXT EVENTS |
|
scrolls content when text is selected |
|
*/ |
|
_selectable=function(){ |
|
var $this=$(this),d=$this.data(pluginPfx),o=d.opt,seq=d.sequential, |
|
namespace=pluginPfx+"_"+d.idx, |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"), |
|
wrapper=mCSB_container.parent(), |
|
action; |
|
mCSB_container.bind("mousedown."+namespace,function(e){ |
|
if(touchable){return;} |
|
if(!action){action=1; touchActive=true;} |
|
}).add(document).bind("mousemove."+namespace,function(e){ |
|
if(!touchable && action && _sel()){ |
|
var offset=mCSB_container.offset(), |
|
y=_coordinates(e)[0]-offset.top+mCSB_container[0].offsetTop,x=_coordinates(e)[1]-offset.left+mCSB_container[0].offsetLeft; |
|
if(y>0 && y<wrapper.height() && x>0 && x<wrapper.width()){ |
|
if(seq.step){_seq("off",null,"stepped");} |
|
}else{ |
|
if(o.axis!=="x" && d.overflowed[0]){ |
|
if(y<0){ |
|
_seq("on",38); |
|
}else if(y>wrapper.height()){ |
|
_seq("on",40); |
|
} |
|
} |
|
if(o.axis!=="y" && d.overflowed[1]){ |
|
if(x<0){ |
|
_seq("on",37); |
|
}else if(x>wrapper.width()){ |
|
_seq("on",39); |
|
} |
|
} |
|
} |
|
} |
|
}).bind("mouseup."+namespace+" dragend."+namespace,function(e){ |
|
if(touchable){return;} |
|
if(action){action=0; _seq("off",null);} |
|
touchActive=false; |
|
}); |
|
function _sel(){ |
|
return window.getSelection ? window.getSelection().toString() : |
|
document.selection && document.selection.type!="Control" ? document.selection.createRange().text : 0; |
|
} |
|
function _seq(a,c,s){ |
|
seq.type=s && action ? "stepped" : "stepless"; |
|
seq.scrollAmount=10; |
|
_sequentialScroll($this,a,c,"mcsLinearOut",s ? 60 : null); |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* |
|
MOUSE WHEEL EVENT |
|
scrolls content via mouse-wheel |
|
via mouse-wheel plugin (https://github.com/brandonaaron/jquery-mousewheel) |
|
*/ |
|
_mousewheel=function(){ |
|
if(!$(this).data(pluginPfx)){return;} /* Check if the scrollbar is ready to use mousewheel events (issue: #185) */ |
|
var $this=$(this),d=$this.data(pluginPfx),o=d.opt, |
|
namespace=pluginPfx+"_"+d.idx, |
|
mCustomScrollBox=$("#mCSB_"+d.idx), |
|
mCSB_dragger=[$("#mCSB_"+d.idx+"_dragger_vertical"),$("#mCSB_"+d.idx+"_dragger_horizontal")], |
|
iframe=$("#mCSB_"+d.idx+"_container").find("iframe"); |
|
if(iframe.length){ |
|
iframe.each(function(){ |
|
$(this).bind("load",function(){ |
|
/* bind events on accessible iframes */ |
|
if(_canAccessIFrame(this)){ |
|
$(this.contentDocument || this.contentWindow.document).bind("mousewheel."+namespace,function(e,delta){ |
|
_onMousewheel(e,delta); |
|
}); |
|
} |
|
}); |
|
}); |
|
} |
|
mCustomScrollBox.bind("mousewheel."+namespace,function(e,delta){ |
|
_onMousewheel(e,delta); |
|
}); |
|
function _onMousewheel(e,delta){ |
|
_stop($this); |
|
if(_disableMousewheel($this,e.target)){return;} /* disables mouse-wheel when hovering specific elements */ |
|
var deltaFactor=o.mouseWheel.deltaFactor!=="auto" ? parseInt(o.mouseWheel.deltaFactor) : (oldIE && e.deltaFactor<100) ? 100 : e.deltaFactor || 100, |
|
dur=o.scrollInertia; |
|
if(o.axis==="x" || o.mouseWheel.axis==="x"){ |
|
var dir="x", |
|
px=[Math.round(deltaFactor*d.scrollRatio.x),parseInt(o.mouseWheel.scrollAmount)], |
|
amount=o.mouseWheel.scrollAmount!=="auto" ? px[1] : px[0]>=mCustomScrollBox.width() ? mCustomScrollBox.width()*0.9 : px[0], |
|
contentPos=Math.abs($("#mCSB_"+d.idx+"_container")[0].offsetLeft), |
|
draggerPos=mCSB_dragger[1][0].offsetLeft, |
|
limit=mCSB_dragger[1].parent().width()-mCSB_dragger[1].width(), |
|
dlt=o.mouseWheel.axis==="y" ? (e.deltaY || delta) : e.deltaX; |
|
}else{ |
|
var dir="y", |
|
px=[Math.round(deltaFactor*d.scrollRatio.y),parseInt(o.mouseWheel.scrollAmount)], |
|
amount=o.mouseWheel.scrollAmount!=="auto" ? px[1] : px[0]>=mCustomScrollBox.height() ? mCustomScrollBox.height()*0.9 : px[0], |
|
contentPos=Math.abs($("#mCSB_"+d.idx+"_container")[0].offsetTop), |
|
draggerPos=mCSB_dragger[0][0].offsetTop, |
|
limit=mCSB_dragger[0].parent().height()-mCSB_dragger[0].height(), |
|
dlt=e.deltaY || delta; |
|
} |
|
if((dir==="y" && !d.overflowed[0]) || (dir==="x" && !d.overflowed[1])){return;} |
|
if(o.mouseWheel.invert || e.webkitDirectionInvertedFromDevice){dlt=-dlt;} |
|
if(o.mouseWheel.normalizeDelta){dlt=dlt<0 ? -1 : 1;} |
|
if((dlt>0 && draggerPos!==0) || (dlt<0 && draggerPos!==limit) || o.mouseWheel.preventDefault){ |
|
e.stopImmediatePropagation(); |
|
e.preventDefault(); |
|
} |
|
if(e.deltaFactor<5 && !o.mouseWheel.normalizeDelta){ |
|
//very low deltaFactor values mean some kind of delta acceleration (e.g. osx trackpad), so adjusting scrolling accordingly |
|
amount=e.deltaFactor; dur=17; |
|
} |
|
_scrollTo($this,(contentPos-(dlt*amount)).toString(),{dir:dir,dur:dur}); |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* checks if iframe can be accessed */ |
|
_canAccessIFrameCache=new Object(), |
|
_canAccessIFrame=function(iframe){ |
|
var result=false,cacheKey=false,html=null; |
|
if(iframe===undefined){ |
|
cacheKey="#empty"; |
|
}else if($(iframe).attr("id")!==undefined){ |
|
cacheKey=$(iframe).attr("id"); |
|
} |
|
if(cacheKey!==false && _canAccessIFrameCache[cacheKey]!==undefined){ |
|
return _canAccessIFrameCache[cacheKey]; |
|
} |
|
if(!iframe){ |
|
try{ |
|
var doc=top.document; |
|
html=doc.body.innerHTML; |
|
}catch(err){/* do nothing */} |
|
result=(html!==null); |
|
}else{ |
|
try{ |
|
var doc=iframe.contentDocument || iframe.contentWindow.document; |
|
html=doc.body.innerHTML; |
|
}catch(err){/* do nothing */} |
|
result=(html!==null); |
|
} |
|
if(cacheKey!==false){_canAccessIFrameCache[cacheKey]=result;} |
|
return result; |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* switches iframe's pointer-events property (drag, mousewheel etc. over cross-domain iframes) */ |
|
_iframe=function(evt){ |
|
var el=this.find("iframe"); |
|
if(!el.length){return;} /* check if content contains iframes */ |
|
var val=!evt ? "none" : "auto"; |
|
el.css("pointer-events",val); /* for IE11, iframe's display property should not be "block" */ |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* disables mouse-wheel when hovering specific elements like select, datalist etc. */ |
|
_disableMousewheel=function(el,target){ |
|
var tag=target.nodeName.toLowerCase(), |
|
tags=el.data(pluginPfx).opt.mouseWheel.disableOver, |
|
/* elements that require focus */ |
|
focusTags=["select","textarea"]; |
|
return $.inArray(tag,tags) > -1 && !($.inArray(tag,focusTags) > -1 && !$(target).is(":focus")); |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* |
|
DRAGGER RAIL CLICK EVENT |
|
scrolls content via dragger rail |
|
*/ |
|
_draggerRail=function(){ |
|
var $this=$(this),d=$this.data(pluginPfx), |
|
namespace=pluginPfx+"_"+d.idx, |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"), |
|
wrapper=mCSB_container.parent(), |
|
mCSB_draggerContainer=$(".mCSB_"+d.idx+"_scrollbar ."+classes[12]), |
|
clickable; |
|
mCSB_draggerContainer.bind("mousedown."+namespace+" touchstart."+namespace+" pointerdown."+namespace+" MSPointerDown."+namespace,function(e){ |
|
touchActive=true; |
|
if(!$(e.target).hasClass("mCSB_dragger")){clickable=1;} |
|
}).bind("touchend."+namespace+" pointerup."+namespace+" MSPointerUp."+namespace,function(e){ |
|
touchActive=false; |
|
}).bind("click."+namespace,function(e){ |
|
if(!clickable){return;} |
|
clickable=0; |
|
if($(e.target).hasClass(classes[12]) || $(e.target).hasClass("mCSB_draggerRail")){ |
|
_stop($this); |
|
var el=$(this),mCSB_dragger=el.find(".mCSB_dragger"); |
|
if(el.parent(".mCSB_scrollTools_horizontal").length>0){ |
|
if(!d.overflowed[1]){return;} |
|
var dir="x", |
|
clickDir=e.pageX>mCSB_dragger.offset().left ? -1 : 1, |
|
to=Math.abs(mCSB_container[0].offsetLeft)-(clickDir*(wrapper.width()*0.9)); |
|
}else{ |
|
if(!d.overflowed[0]){return;} |
|
var dir="y", |
|
clickDir=e.pageY>mCSB_dragger.offset().top ? -1 : 1, |
|
to=Math.abs(mCSB_container[0].offsetTop)-(clickDir*(wrapper.height()*0.9)); |
|
} |
|
_scrollTo($this,to.toString(),{dir:dir,scrollEasing:"mcsEaseInOut"}); |
|
} |
|
}); |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* |
|
FOCUS EVENT |
|
scrolls content via element focus (e.g. clicking an input, pressing TAB key etc.) |
|
*/ |
|
_focus=function(){ |
|
var $this=$(this),d=$this.data(pluginPfx),o=d.opt, |
|
namespace=pluginPfx+"_"+d.idx, |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"), |
|
wrapper=mCSB_container.parent(); |
|
mCSB_container.bind("focusin."+namespace,function(e){ |
|
var el=$(document.activeElement), |
|
nested=mCSB_container.find(".mCustomScrollBox").length, |
|
dur=0; |
|
if(!el.is(o.advanced.autoScrollOnFocus)){return;} |
|
_stop($this); |
|
clearTimeout($this[0]._focusTimeout); |
|
$this[0]._focusTimer=nested ? (dur+17)*nested : 0; |
|
$this[0]._focusTimeout=setTimeout(function(){ |
|
var to=[_childPos(el)[0],_childPos(el)[1]], |
|
contentPos=[mCSB_container[0].offsetTop,mCSB_container[0].offsetLeft], |
|
isVisible=[ |
|
(contentPos[0]+to[0]>=0 && contentPos[0]+to[0]<wrapper.height()-el.outerHeight(false)), |
|
(contentPos[1]+to[1]>=0 && contentPos[0]+to[1]<wrapper.width()-el.outerWidth(false)) |
|
], |
|
overwrite=(o.axis==="yx" && !isVisible[0] && !isVisible[1]) ? "none" : "all"; |
|
if(o.axis!=="x" && !isVisible[0]){ |
|
_scrollTo($this,to[0].toString(),{dir:"y",scrollEasing:"mcsEaseInOut",overwrite:overwrite,dur:dur}); |
|
} |
|
if(o.axis!=="y" && !isVisible[1]){ |
|
_scrollTo($this,to[1].toString(),{dir:"x",scrollEasing:"mcsEaseInOut",overwrite:overwrite,dur:dur}); |
|
} |
|
},$this[0]._focusTimer); |
|
}); |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* sets content wrapper scrollTop/scrollLeft always to 0 */ |
|
_wrapperScroll=function(){ |
|
var $this=$(this),d=$this.data(pluginPfx), |
|
namespace=pluginPfx+"_"+d.idx, |
|
wrapper=$("#mCSB_"+d.idx+"_container").parent(); |
|
wrapper.bind("scroll."+namespace,function(e){ |
|
if(wrapper.scrollTop()!==0 || wrapper.scrollLeft()!==0){ |
|
$(".mCSB_"+d.idx+"_scrollbar").css("visibility","hidden"); /* hide scrollbar(s) */ |
|
} |
|
}); |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* |
|
BUTTONS EVENTS |
|
scrolls content via up, down, left and right buttons |
|
*/ |
|
_buttons=function(){ |
|
var $this=$(this),d=$this.data(pluginPfx),o=d.opt,seq=d.sequential, |
|
namespace=pluginPfx+"_"+d.idx, |
|
sel=".mCSB_"+d.idx+"_scrollbar", |
|
btn=$(sel+">a"); |
|
btn.bind("contextmenu."+namespace,function(e){ |
|
e.preventDefault(); //prevent right click |
|
}).bind("mousedown."+namespace+" touchstart."+namespace+" pointerdown."+namespace+" MSPointerDown."+namespace+" mouseup."+namespace+" touchend."+namespace+" pointerup."+namespace+" MSPointerUp."+namespace+" mouseout."+namespace+" pointerout."+namespace+" MSPointerOut."+namespace+" click."+namespace,function(e){ |
|
e.preventDefault(); |
|
if(!_mouseBtnLeft(e)){return;} /* left mouse button only */ |
|
var btnClass=$(this).attr("class"); |
|
seq.type=o.scrollButtons.scrollType; |
|
switch(e.type){ |
|
case "mousedown": case "touchstart": case "pointerdown": case "MSPointerDown": |
|
if(seq.type==="stepped"){return;} |
|
touchActive=true; |
|
d.tweenRunning=false; |
|
_seq("on",btnClass); |
|
break; |
|
case "mouseup": case "touchend": case "pointerup": case "MSPointerUp": |
|
case "mouseout": case "pointerout": case "MSPointerOut": |
|
if(seq.type==="stepped"){return;} |
|
touchActive=false; |
|
if(seq.dir){_seq("off",btnClass);} |
|
break; |
|
case "click": |
|
if(seq.type!=="stepped" || d.tweenRunning){return;} |
|
_seq("on",btnClass); |
|
break; |
|
} |
|
function _seq(a,c){ |
|
seq.scrollAmount=o.scrollButtons.scrollAmount; |
|
_sequentialScroll($this,a,c); |
|
} |
|
}); |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* |
|
KEYBOARD EVENTS |
|
scrolls content via keyboard |
|
Keys: up arrow, down arrow, left arrow, right arrow, PgUp, PgDn, Home, End |
|
*/ |
|
_keyboard=function(){ |
|
var $this=$(this),d=$this.data(pluginPfx),o=d.opt,seq=d.sequential, |
|
namespace=pluginPfx+"_"+d.idx, |
|
mCustomScrollBox=$("#mCSB_"+d.idx), |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"), |
|
wrapper=mCSB_container.parent(), |
|
editables="input,textarea,select,datalist,keygen,[contenteditable='true']", |
|
iframe=mCSB_container.find("iframe"), |
|
events=["blur."+namespace+" keydown."+namespace+" keyup."+namespace]; |
|
if(iframe.length){ |
|
iframe.each(function(){ |
|
$(this).bind("load",function(){ |
|
/* bind events on accessible iframes */ |
|
if(_canAccessIFrame(this)){ |
|
$(this.contentDocument || this.contentWindow.document).bind(events[0],function(e){ |
|
_onKeyboard(e); |
|
}); |
|
} |
|
}); |
|
}); |
|
} |
|
mCustomScrollBox.attr("tabindex","0").bind(events[0],function(e){ |
|
_onKeyboard(e); |
|
}); |
|
function _onKeyboard(e){ |
|
switch(e.type){ |
|
case "blur": |
|
if(d.tweenRunning && seq.dir){_seq("off",null);} |
|
break; |
|
case "keydown": case "keyup": |
|
var code=e.keyCode ? e.keyCode : e.which,action="on"; |
|
if((o.axis!=="x" && (code===38 || code===40)) || (o.axis!=="y" && (code===37 || code===39))){ |
|
/* up (38), down (40), left (37), right (39) arrows */ |
|
if(((code===38 || code===40) && !d.overflowed[0]) || ((code===37 || code===39) && !d.overflowed[1])){return;} |
|
if(e.type==="keyup"){action="off";} |
|
if(!$(document.activeElement).is(editables)){ |
|
e.preventDefault(); |
|
e.stopImmediatePropagation(); |
|
_seq(action,code); |
|
} |
|
}else if(code===33 || code===34){ |
|
/* PgUp (33), PgDn (34) */ |
|
if(d.overflowed[0] || d.overflowed[1]){ |
|
e.preventDefault(); |
|
e.stopImmediatePropagation(); |
|
} |
|
if(e.type==="keyup"){ |
|
_stop($this); |
|
var keyboardDir=code===34 ? -1 : 1; |
|
if(o.axis==="x" || (o.axis==="yx" && d.overflowed[1] && !d.overflowed[0])){ |
|
var dir="x",to=Math.abs(mCSB_container[0].offsetLeft)-(keyboardDir*(wrapper.width()*0.9)); |
|
}else{ |
|
var dir="y",to=Math.abs(mCSB_container[0].offsetTop)-(keyboardDir*(wrapper.height()*0.9)); |
|
} |
|
_scrollTo($this,to.toString(),{dir:dir,scrollEasing:"mcsEaseInOut"}); |
|
} |
|
}else if(code===35 || code===36){ |
|
/* End (35), Home (36) */ |
|
if(!$(document.activeElement).is(editables)){ |
|
if(d.overflowed[0] || d.overflowed[1]){ |
|
e.preventDefault(); |
|
e.stopImmediatePropagation(); |
|
} |
|
if(e.type==="keyup"){ |
|
if(o.axis==="x" || (o.axis==="yx" && d.overflowed[1] && !d.overflowed[0])){ |
|
var dir="x",to=code===35 ? Math.abs(wrapper.width()-mCSB_container.outerWidth(false)) : 0; |
|
}else{ |
|
var dir="y",to=code===35 ? Math.abs(wrapper.height()-mCSB_container.outerHeight(false)) : 0; |
|
} |
|
_scrollTo($this,to.toString(),{dir:dir,scrollEasing:"mcsEaseInOut"}); |
|
} |
|
} |
|
} |
|
break; |
|
} |
|
function _seq(a,c){ |
|
seq.type=o.keyboard.scrollType; |
|
seq.scrollAmount=o.keyboard.scrollAmount; |
|
if(seq.type==="stepped" && d.tweenRunning){return;} |
|
_sequentialScroll($this,a,c); |
|
} |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* scrolls content sequentially (used when scrolling via buttons, keyboard arrows etc.) */ |
|
_sequentialScroll=function(el,action,trigger,e,s){ |
|
var d=el.data(pluginPfx),o=d.opt,seq=d.sequential, |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"), |
|
once=seq.type==="stepped" ? true : false, |
|
steplessSpeed=o.scrollInertia < 26 ? 26 : o.scrollInertia, /* 26/1.5=17 */ |
|
steppedSpeed=o.scrollInertia < 1 ? 17 : o.scrollInertia; |
|
switch(action){ |
|
case "on": |
|
seq.dir=[ |
|
(trigger===classes[16] || trigger===classes[15] || trigger===39 || trigger===37 ? "x" : "y"), |
|
(trigger===classes[13] || trigger===classes[15] || trigger===38 || trigger===37 ? -1 : 1) |
|
]; |
|
_stop(el); |
|
if(_isNumeric(trigger) && seq.type==="stepped"){return;} |
|
_on(once); |
|
break; |
|
case "off": |
|
_off(); |
|
if(once || (d.tweenRunning && seq.dir)){ |
|
_on(true); |
|
} |
|
break; |
|
} |
|
|
|
/* starts sequence */ |
|
function _on(once){ |
|
if(o.snapAmount){seq.scrollAmount=!(o.snapAmount instanceof Array) ? o.snapAmount : seq.dir[0]==="x" ? o.snapAmount[1] : o.snapAmount[0];} /* scrolling snapping */ |
|
var c=seq.type!=="stepped", /* continuous scrolling */ |
|
t=s ? s : !once ? 1000/60 : c ? steplessSpeed/1.5 : steppedSpeed, /* timer */ |
|
m=!once ? 2.5 : c ? 7.5 : 40, /* multiplier */ |
|
contentPos=[Math.abs(mCSB_container[0].offsetTop),Math.abs(mCSB_container[0].offsetLeft)], |
|
ratio=[d.scrollRatio.y>10 ? 10 : d.scrollRatio.y,d.scrollRatio.x>10 ? 10 : d.scrollRatio.x], |
|
amount=seq.dir[0]==="x" ? contentPos[1]+(seq.dir[1]*(ratio[1]*m)) : contentPos[0]+(seq.dir[1]*(ratio[0]*m)), |
|
px=seq.dir[0]==="x" ? contentPos[1]+(seq.dir[1]*parseInt(seq.scrollAmount)) : contentPos[0]+(seq.dir[1]*parseInt(seq.scrollAmount)), |
|
to=seq.scrollAmount!=="auto" ? px : amount, |
|
easing=e ? e : !once ? "mcsLinear" : c ? "mcsLinearOut" : "mcsEaseInOut", |
|
onComplete=!once ? false : true; |
|
if(once && t<17){ |
|
to=seq.dir[0]==="x" ? contentPos[1] : contentPos[0]; |
|
} |
|
_scrollTo(el,to.toString(),{dir:seq.dir[0],scrollEasing:easing,dur:t,onComplete:onComplete}); |
|
if(once){ |
|
seq.dir=false; |
|
return; |
|
} |
|
clearTimeout(seq.step); |
|
seq.step=setTimeout(function(){ |
|
_on(); |
|
},t); |
|
} |
|
/* stops sequence */ |
|
function _off(){ |
|
clearTimeout(seq.step); |
|
_delete(seq,"step"); |
|
_stop(el); |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* returns a yx array from value */ |
|
_arr=function(val){ |
|
var o=$(this).data(pluginPfx).opt,vals=[]; |
|
if(typeof val==="function"){val=val();} /* check if the value is a single anonymous function */ |
|
/* check if value is object or array, its length and create an array with yx values */ |
|
if(!(val instanceof Array)){ /* object value (e.g. {y:"100",x:"100"}, 100 etc.) */ |
|
vals[0]=val.y ? val.y : val.x || o.axis==="x" ? null : val; |
|
vals[1]=val.x ? val.x : val.y || o.axis==="y" ? null : val; |
|
}else{ /* array value (e.g. [100,100]) */ |
|
vals=val.length>1 ? [val[0],val[1]] : o.axis==="x" ? [null,val[0]] : [val[0],null]; |
|
} |
|
/* check if array values are anonymous functions */ |
|
if(typeof vals[0]==="function"){vals[0]=vals[0]();} |
|
if(typeof vals[1]==="function"){vals[1]=vals[1]();} |
|
return vals; |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* translates values (e.g. "top", 100, "100px", "#id") to actual scroll-to positions */ |
|
_to=function(val,dir){ |
|
if(val==null || typeof val=="undefined"){return;} |
|
var $this=$(this),d=$this.data(pluginPfx),o=d.opt, |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"), |
|
wrapper=mCSB_container.parent(), |
|
t=typeof val; |
|
if(!dir){dir=o.axis==="x" ? "x" : "y";} |
|
var contentLength=dir==="x" ? mCSB_container.outerWidth(false)-wrapper.width() : mCSB_container.outerHeight(false)-wrapper.height(), |
|
contentPos=dir==="x" ? mCSB_container[0].offsetLeft : mCSB_container[0].offsetTop, |
|
cssProp=dir==="x" ? "left" : "top"; |
|
switch(t){ |
|
case "function": /* this currently is not used. Consider removing it */ |
|
return val(); |
|
break; |
|
case "object": /* js/jquery object */ |
|
var obj=val.jquery ? val : $(val); |
|
if(!obj.length){return;} |
|
return dir==="x" ? _childPos(obj)[1] : _childPos(obj)[0]; |
|
break; |
|
case "string": case "number": |
|
if(_isNumeric(val)){ /* numeric value */ |
|
return Math.abs(val); |
|
}else if(val.indexOf("%")!==-1){ /* percentage value */ |
|
return Math.abs(contentLength*parseInt(val)/100); |
|
}else if(val.indexOf("-=")!==-1){ /* decrease value */ |
|
return Math.abs(contentPos-parseInt(val.split("-=")[1])); |
|
}else if(val.indexOf("+=")!==-1){ /* inrease value */ |
|
var p=(contentPos+parseInt(val.split("+=")[1])); |
|
return p>=0 ? 0 : Math.abs(p); |
|
}else if(val.indexOf("px")!==-1 && _isNumeric(val.split("px")[0])){ /* pixels string value (e.g. "100px") */ |
|
return Math.abs(val.split("px")[0]); |
|
}else{ |
|
if(val==="top" || val==="left"){ /* special strings */ |
|
return 0; |
|
}else if(val==="bottom"){ |
|
return Math.abs(wrapper.height()-mCSB_container.outerHeight(false)); |
|
}else if(val==="right"){ |
|
return Math.abs(wrapper.width()-mCSB_container.outerWidth(false)); |
|
}else if(val==="first" || val==="last"){ |
|
var obj=mCSB_container.find(":"+val); |
|
return dir==="x" ? _childPos(obj)[1] : _childPos(obj)[0]; |
|
}else{ |
|
if($(val).length){ /* jquery selector */ |
|
return dir==="x" ? _childPos($(val))[1] : _childPos($(val))[0]; |
|
}else{ /* other values (e.g. "100em") */ |
|
mCSB_container.css(cssProp,val); |
|
methods.update.call(null,$this[0]); |
|
return; |
|
} |
|
} |
|
} |
|
break; |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* calls the update method automatically */ |
|
_autoUpdate=function(rem){ |
|
var $this=$(this),d=$this.data(pluginPfx),o=d.opt, |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"); |
|
if(rem){ |
|
/* |
|
removes autoUpdate timer |
|
usage: _autoUpdate.call(this,"remove"); |
|
*/ |
|
clearTimeout(mCSB_container[0].autoUpdate); |
|
_delete(mCSB_container[0],"autoUpdate"); |
|
return; |
|
} |
|
upd(); |
|
function upd(){ |
|
clearTimeout(mCSB_container[0].autoUpdate); |
|
if($this.parents("html").length===0){ |
|
/* check element in dom tree */ |
|
$this=null; |
|
return; |
|
} |
|
mCSB_container[0].autoUpdate=setTimeout(function(){ |
|
/* update on specific selector(s) length and size change */ |
|
if(o.advanced.updateOnSelectorChange){ |
|
d.poll.change.n=sizesSum(); |
|
if(d.poll.change.n!==d.poll.change.o){ |
|
d.poll.change.o=d.poll.change.n; |
|
doUpd(3); |
|
return; |
|
} |
|
} |
|
/* update on main element and scrollbar size changes */ |
|
if(o.advanced.updateOnContentResize){ |
|
d.poll.size.n=$this[0].scrollHeight+$this[0].scrollWidth+mCSB_container[0].offsetHeight+$this[0].offsetHeight+$this[0].offsetWidth; |
|
if(d.poll.size.n!==d.poll.size.o){ |
|
d.poll.size.o=d.poll.size.n; |
|
doUpd(1); |
|
return; |
|
} |
|
} |
|
/* update on image load */ |
|
if(o.advanced.updateOnImageLoad){ |
|
if(!(o.advanced.updateOnImageLoad==="auto" && o.axis==="y")){ //by default, it doesn't run on vertical content |
|
d.poll.img.n=mCSB_container.find("img").length; |
|
if(d.poll.img.n!==d.poll.img.o){ |
|
d.poll.img.o=d.poll.img.n; |
|
mCSB_container.find("img").each(function(){ |
|
imgLoader(this); |
|
}); |
|
return; |
|
} |
|
} |
|
} |
|
if(o.advanced.updateOnSelectorChange || o.advanced.updateOnContentResize || o.advanced.updateOnImageLoad){upd();} |
|
},o.advanced.autoUpdateTimeout); |
|
} |
|
/* a tiny image loader */ |
|
function imgLoader(el){ |
|
if($(el).hasClass(classes[2])){doUpd(); return;} |
|
var img=new Image(); |
|
function createDelegate(contextObject,delegateMethod){ |
|
return function(){return delegateMethod.apply(contextObject,arguments);} |
|
} |
|
function imgOnLoad(){ |
|
this.onload=null; |
|
$(el).addClass(classes[2]); |
|
doUpd(2); |
|
} |
|
img.onload=createDelegate(img,imgOnLoad); |
|
img.src=el.src; |
|
} |
|
/* returns the total height and width sum of all elements matching the selector */ |
|
function sizesSum(){ |
|
if(o.advanced.updateOnSelectorChange===true){o.advanced.updateOnSelectorChange="*";} |
|
var total=0,sel=mCSB_container.find(o.advanced.updateOnSelectorChange); |
|
if(o.advanced.updateOnSelectorChange && sel.length>0){sel.each(function(){total+=this.offsetHeight+this.offsetWidth;});} |
|
return total; |
|
} |
|
/* calls the update method */ |
|
function doUpd(cb){ |
|
clearTimeout(mCSB_container[0].autoUpdate); |
|
methods.update.call(null,$this[0],cb); |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* snaps scrolling to a multiple of a pixels number */ |
|
_snapAmount=function(to,amount,offset){ |
|
return (Math.round(to/amount)*amount-offset); |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* stops content and scrollbar animations */ |
|
_stop=function(el){ |
|
var d=el.data(pluginPfx), |
|
sel=$("#mCSB_"+d.idx+"_container,#mCSB_"+d.idx+"_container_wrapper,#mCSB_"+d.idx+"_dragger_vertical,#mCSB_"+d.idx+"_dragger_horizontal"); |
|
sel.each(function(){ |
|
_stopTween.call(this); |
|
}); |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* |
|
ANIMATES CONTENT |
|
This is where the actual scrolling happens |
|
*/ |
|
_scrollTo=function(el,to,options){ |
|
var d=el.data(pluginPfx),o=d.opt, |
|
defaults={ |
|
trigger:"internal", |
|
dir:"y", |
|
scrollEasing:"mcsEaseOut", |
|
drag:false, |
|
dur:o.scrollInertia, |
|
overwrite:"all", |
|
callbacks:true, |
|
onStart:true, |
|
onUpdate:true, |
|
onComplete:true |
|
}, |
|
options=$.extend(defaults,options), |
|
dur=[options.dur,(options.drag ? 0 : options.dur)], |
|
mCustomScrollBox=$("#mCSB_"+d.idx), |
|
mCSB_container=$("#mCSB_"+d.idx+"_container"), |
|
wrapper=mCSB_container.parent(), |
|
totalScrollOffsets=o.callbacks.onTotalScrollOffset ? _arr.call(el,o.callbacks.onTotalScrollOffset) : [0,0], |
|
totalScrollBackOffsets=o.callbacks.onTotalScrollBackOffset ? _arr.call(el,o.callbacks.onTotalScrollBackOffset) : [0,0]; |
|
d.trigger=options.trigger; |
|
if(wrapper.scrollTop()!==0 || wrapper.scrollLeft()!==0){ /* always reset scrollTop/Left */ |
|
$(".mCSB_"+d.idx+"_scrollbar").css("visibility","visible"); |
|
wrapper.scrollTop(0).scrollLeft(0); |
|
} |
|
if(to==="_resetY" && !d.contentReset.y){ |
|
/* callbacks: onOverflowYNone */ |
|
if(_cb("onOverflowYNone")){o.callbacks.onOverflowYNone.call(el[0]);} |
|
d.contentReset.y=1; |
|
} |
|
if(to==="_resetX" && !d.contentReset.x){ |
|
/* callbacks: onOverflowXNone */ |
|
if(_cb("onOverflowXNone")){o.callbacks.onOverflowXNone.call(el[0]);} |
|
d.contentReset.x=1; |
|
} |
|
if(to==="_resetY" || to==="_resetX"){return;} |
|
if((d.contentReset.y || !el[0].mcs) && d.overflowed[0]){ |
|
/* callbacks: onOverflowY */ |
|
if(_cb("onOverflowY")){o.callbacks.onOverflowY.call(el[0]);} |
|
d.contentReset.x=null; |
|
} |
|
if((d.contentReset.x || !el[0].mcs) && d.overflowed[1]){ |
|
/* callbacks: onOverflowX */ |
|
if(_cb("onOverflowX")){o.callbacks.onOverflowX.call(el[0]);} |
|
d.contentReset.x=null; |
|
} |
|
if(o.snapAmount){ /* scrolling snapping */ |
|
var snapAmount=!(o.snapAmount instanceof Array) ? o.snapAmount : options.dir==="x" ? o.snapAmount[1] : o.snapAmount[0]; |
|
to=_snapAmount(to,snapAmount,o.snapOffset); |
|
} |
|
switch(options.dir){ |
|
case "x": |
|
var mCSB_dragger=$("#mCSB_"+d.idx+"_dragger_horizontal"), |
|
property="left", |
|
contentPos=mCSB_container[0].offsetLeft, |
|
limit=[ |
|
mCustomScrollBox.width()-mCSB_container.outerWidth(false), |
|
mCSB_dragger.parent().width()-mCSB_dragger.width() |
|
], |
|
scrollTo=[to,to===0 ? 0 : (to/d.scrollRatio.x)], |
|
tso=totalScrollOffsets[1], |
|
tsbo=totalScrollBackOffsets[1], |
|
totalScrollOffset=tso>0 ? tso/d.scrollRatio.x : 0, |
|
totalScrollBackOffset=tsbo>0 ? tsbo/d.scrollRatio.x : 0; |
|
break; |
|
case "y": |
|
var mCSB_dragger=$("#mCSB_"+d.idx+"_dragger_vertical"), |
|
property="top", |
|
contentPos=mCSB_container[0].offsetTop, |
|
limit=[ |
|
mCustomScrollBox.height()-mCSB_container.outerHeight(false), |
|
mCSB_dragger.parent().height()-mCSB_dragger.height() |
|
], |
|
scrollTo=[to,to===0 ? 0 : (to/d.scrollRatio.y)], |
|
tso=totalScrollOffsets[0], |
|
tsbo=totalScrollBackOffsets[0], |
|
totalScrollOffset=tso>0 ? tso/d.scrollRatio.y : 0, |
|
totalScrollBackOffset=tsbo>0 ? tsbo/d.scrollRatio.y : 0; |
|
break; |
|
} |
|
if(scrollTo[1]<0 || (scrollTo[0]===0 && scrollTo[1]===0)){ |
|
scrollTo=[0,0]; |
|
}else if(scrollTo[1]>=limit[1]){ |
|
scrollTo=[limit[0],limit[1]]; |
|
}else{ |
|
scrollTo[0]=-scrollTo[0]; |
|
} |
|
if(!el[0].mcs){ |
|
_mcs(); /* init mcs object (once) to make it available before callbacks */ |
|
if(_cb("onInit")){o.callbacks.onInit.call(el[0]);} /* callbacks: onInit */ |
|
} |
|
clearTimeout(mCSB_container[0].onCompleteTimeout); |
|
_tweenTo(mCSB_dragger[0],property,Math.round(scrollTo[1]),dur[1],options.scrollEasing); |
|
if(!d.tweenRunning && ((contentPos===0 && scrollTo[0]>=0) || (contentPos===limit[0] && scrollTo[0]<=limit[0]))){return;} |
|
_tweenTo(mCSB_container[0],property,Math.round(scrollTo[0]),dur[0],options.scrollEasing,options.overwrite,{ |
|
onStart:function(){ |
|
if(options.callbacks && options.onStart && !d.tweenRunning){ |
|
/* callbacks: onScrollStart */ |
|
if(_cb("onScrollStart")){_mcs(); o.callbacks.onScrollStart.call(el[0]);} |
|
d.tweenRunning=true; |
|
_onDragClasses(mCSB_dragger); |
|
d.cbOffsets=_cbOffsets(); |
|
} |
|
},onUpdate:function(){ |
|
if(options.callbacks && options.onUpdate){ |
|
/* callbacks: whileScrolling */ |
|
if(_cb("whileScrolling")){_mcs(); o.callbacks.whileScrolling.call(el[0]);} |
|
} |
|
},onComplete:function(){ |
|
if(options.callbacks && options.onComplete){ |
|
if(o.axis==="yx"){clearTimeout(mCSB_container[0].onCompleteTimeout);} |
|
var t=mCSB_container[0].idleTimer || 0; |
|
mCSB_container[0].onCompleteTimeout=setTimeout(function(){ |
|
/* callbacks: onScroll, onTotalScroll, onTotalScrollBack */ |
|
if(_cb("onScroll")){_mcs(); o.callbacks.onScroll.call(el[0]);} |
|
if(_cb("onTotalScroll") && scrollTo[1]>=limit[1]-totalScrollOffset && d.cbOffsets[0]){_mcs(); o.callbacks.onTotalScroll.call(el[0]);} |
|
if(_cb("onTotalScrollBack") && scrollTo[1]<=totalScrollBackOffset && d.cbOffsets[1]){_mcs(); o.callbacks.onTotalScrollBack.call(el[0]);} |
|
d.tweenRunning=false; |
|
mCSB_container[0].idleTimer=0; |
|
_onDragClasses(mCSB_dragger,"hide"); |
|
},t); |
|
} |
|
} |
|
}); |
|
/* checks if callback function exists */ |
|
function _cb(cb){ |
|
return d && o.callbacks[cb] && typeof o.callbacks[cb]==="function"; |
|
} |
|
/* checks whether callback offsets always trigger */ |
|
function _cbOffsets(){ |
|
return [o.callbacks.alwaysTriggerOffsets || contentPos>=limit[0]+tso,o.callbacks.alwaysTriggerOffsets || contentPos<=-tsbo]; |
|
} |
|
/* |
|
populates object with useful values for the user |
|
values: |
|
content: this.mcs.content |
|
content top position: this.mcs.top |
|
content left position: this.mcs.left |
|
dragger top position: this.mcs.draggerTop |
|
dragger left position: this.mcs.draggerLeft |
|
scrolling y percentage: this.mcs.topPct |
|
scrolling x percentage: this.mcs.leftPct |
|
scrolling direction: this.mcs.direction |
|
*/ |
|
function _mcs(){ |
|
var cp=[mCSB_container[0].offsetTop,mCSB_container[0].offsetLeft], /* content position */ |
|
dp=[mCSB_dragger[0].offsetTop,mCSB_dragger[0].offsetLeft], /* dragger position */ |
|
cl=[mCSB_container.outerHeight(false),mCSB_container.outerWidth(false)], /* content length */ |
|
pl=[mCustomScrollBox.height(),mCustomScrollBox.width()]; /* content parent length */ |
|
el[0].mcs={ |
|
content:mCSB_container, /* original content wrapper as jquery object */ |
|
top:cp[0],left:cp[1],draggerTop:dp[0],draggerLeft:dp[1], |
|
topPct:Math.round((100*Math.abs(cp[0]))/(Math.abs(cl[0])-pl[0])),leftPct:Math.round((100*Math.abs(cp[1]))/(Math.abs(cl[1])-pl[1])), |
|
direction:options.dir |
|
}; |
|
/* |
|
this refers to the original element containing the scrollbar(s) |
|
usage: this.mcs.top, this.mcs.leftPct etc. |
|
*/ |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* |
|
CUSTOM JAVASCRIPT ANIMATION TWEEN |
|
Lighter and faster than jquery animate() and css transitions |
|
Animates top/left properties and includes easings |
|
*/ |
|
_tweenTo=function(el,prop,to,duration,easing,overwrite,callbacks){ |
|
if(!el._mTween){el._mTween={top:{},left:{}};} |
|
var callbacks=callbacks || {}, |
|
onStart=callbacks.onStart || function(){},onUpdate=callbacks.onUpdate || function(){},onComplete=callbacks.onComplete || function(){}, |
|
startTime=_getTime(),_delay,progress=0,from=el.offsetTop,elStyle=el.style,_request,tobj=el._mTween[prop]; |
|
if(prop==="left"){from=el.offsetLeft;} |
|
var diff=to-from; |
|
tobj.stop=0; |
|
if(overwrite!=="none"){_cancelTween();} |
|
_startTween(); |
|
function _step(){ |
|
if(tobj.stop){return;} |
|
if(!progress){onStart.call();} |
|
progress=_getTime()-startTime; |
|
_tween(); |
|
if(progress>=tobj.time){ |
|
tobj.time=(progress>tobj.time) ? progress+_delay-(progress-tobj.time) : progress+_delay-1; |
|
if(tobj.time<progress+1){tobj.time=progress+1;} |
|
} |
|
if(tobj.time<duration){tobj.id=_request(_step);}else{onComplete.call();} |
|
} |
|
function _tween(){ |
|
if(duration>0){ |
|
tobj.currVal=_ease(tobj.time,from,diff,duration,easing); |
|
elStyle[prop]=Math.round(tobj.currVal)+"px"; |
|
}else{ |
|
elStyle[prop]=to+"px"; |
|
} |
|
onUpdate.call(); |
|
} |
|
function _startTween(){ |
|
_delay=1000/60; |
|
tobj.time=progress+_delay; |
|
_request=(!window.requestAnimationFrame) ? function(f){_tween(); return setTimeout(f,0.01);} : window.requestAnimationFrame; |
|
tobj.id=_request(_step); |
|
} |
|
function _cancelTween(){ |
|
if(tobj.id==null){return;} |
|
if(!window.requestAnimationFrame){clearTimeout(tobj.id); |
|
}else{window.cancelAnimationFrame(tobj.id);} |
|
tobj.id=null; |
|
} |
|
function _ease(t,b,c,d,type){ |
|
switch(type){ |
|
case "linear": case "mcsLinear": |
|
return c*t/d + b; |
|
break; |
|
case "mcsLinearOut": |
|
t/=d; t--; return c * Math.sqrt(1 - t*t) + b; |
|
break; |
|
case "easeInOutSmooth": |
|
t/=d/2; |
|
if(t<1) return c/2*t*t + b; |
|
t--; |
|
return -c/2 * (t*(t-2) - 1) + b; |
|
break; |
|
case "easeInOutStrong": |
|
t/=d/2; |
|
if(t<1) return c/2 * Math.pow( 2, 10 * (t - 1) ) + b; |
|
t--; |
|
return c/2 * ( -Math.pow( 2, -10 * t) + 2 ) + b; |
|
break; |
|
case "easeInOut": case "mcsEaseInOut": |
|
t/=d/2; |
|
if(t<1) return c/2*t*t*t + b; |
|
t-=2; |
|
return c/2*(t*t*t + 2) + b; |
|
break; |
|
case "easeOutSmooth": |
|
t/=d; t--; |
|
return -c * (t*t*t*t - 1) + b; |
|
break; |
|
case "easeOutStrong": |
|
return c * ( -Math.pow( 2, -10 * t/d ) + 1 ) + b; |
|
break; |
|
case "easeOut": case "mcsEaseOut": default: |
|
var ts=(t/=d)*t,tc=ts*t; |
|
return b+c*(0.499999999999997*tc*ts + -2.5*ts*ts + 5.5*tc + -6.5*ts + 4*t); |
|
} |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* returns current time */ |
|
_getTime=function(){ |
|
if(window.performance && window.performance.now){ |
|
return window.performance.now(); |
|
}else{ |
|
if(window.performance && window.performance.webkitNow){ |
|
return window.performance.webkitNow(); |
|
}else{ |
|
if(Date.now){return Date.now();}else{return new Date().getTime();} |
|
} |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* stops a tween */ |
|
_stopTween=function(){ |
|
var el=this; |
|
if(!el._mTween){el._mTween={top:{},left:{}};} |
|
var props=["top","left"]; |
|
for(var i=0; i<props.length; i++){ |
|
var prop=props[i]; |
|
if(el._mTween[prop].id){ |
|
if(!window.requestAnimationFrame){clearTimeout(el._mTween[prop].id); |
|
}else{window.cancelAnimationFrame(el._mTween[prop].id);} |
|
el._mTween[prop].id=null; |
|
el._mTween[prop].stop=1; |
|
} |
|
} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* deletes a property (avoiding the exception thrown by IE) */ |
|
_delete=function(c,m){ |
|
try{delete c[m];}catch(e){c[m]=null;} |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* detects left mouse button */ |
|
_mouseBtnLeft=function(e){ |
|
return !(e.which && e.which!==1); |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* detects if pointer type event is touch */ |
|
_pointerTouch=function(e){ |
|
var t=e.originalEvent.pointerType; |
|
return !(t && t!=="touch" && t!==2); |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* checks if value is numeric */ |
|
_isNumeric=function(val){ |
|
return !isNaN(parseFloat(val)) && isFinite(val); |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* returns element position according to content */ |
|
_childPos=function(el){ |
|
var p=el.parents(".mCSB_container"); |
|
return [el.offset().top-p.offset().top,el.offset().left-p.offset().left]; |
|
}, |
|
/* -------------------- */ |
|
|
|
|
|
/* checks if browser tab is hidden/inactive via Page Visibility API */ |
|
_isTabHidden=function(){ |
|
var prop=_getHiddenProp(); |
|
if(!prop) return false; |
|
return document[prop]; |
|
function _getHiddenProp(){ |
|
var pfx=["webkit","moz","ms","o"]; |
|
if("hidden" in document) return "hidden"; //natively supported |
|
for(var i=0; i<pfx.length; i++){ //prefixed |
|
if((pfx[i]+"Hidden") in document) |
|
return pfx[i]+"Hidden"; |
|
} |
|
return null; //not supported |
|
} |
|
}; |
|
/* -------------------- */ |
|
|
|
|
|
|
|
|
|
|
|
/* |
|
---------------------------------------- |
|
PLUGIN SETUP |
|
---------------------------------------- |
|
*/ |
|
|
|
/* plugin constructor functions */ |
|
$.fn[pluginNS]=function(method){ /* usage: $(selector).mCustomScrollbar(); */ |
|
if(methods[method]){ |
|
return methods[method].apply(this,Array.prototype.slice.call(arguments,1)); |
|
}else if(typeof method==="object" || !method){ |
|
return methods.init.apply(this,arguments); |
|
}else{ |
|
$.error("Method "+method+" does not exist"); |
|
} |
|
}; |
|
$[pluginNS]=function(method){ /* usage: $.mCustomScrollbar(); */ |
|
if(methods[method]){ |
|
return methods[method].apply(this,Array.prototype.slice.call(arguments,1)); |
|
}else if(typeof method==="object" || !method){ |
|
return methods.init.apply(this,arguments); |
|
}else{ |
|
$.error("Method "+method+" does not exist"); |
|
} |
|
}; |
|
|
|
/* |
|
allow setting plugin default options. |
|
usage: $.mCustomScrollbar.defaults.scrollInertia=500; |
|
to apply any changed default options on default selectors (below), use inside document ready fn |
|
e.g.: $(document).ready(function(){ $.mCustomScrollbar.defaults.scrollInertia=500; }); |
|
*/ |
|
$[pluginNS].defaults=defaults; |
|
|
|
/* |
|
add window object (window.mCustomScrollbar) |
|
usage: if(window.mCustomScrollbar){console.log("custom scrollbar plugin loaded");} |
|
*/ |
|
window[pluginNS]=true; |
|
|
|
$(window).bind("load",function(){ |
|
|
|
$(defaultSelector)[pluginNS](); /* add scrollbars automatically on default selector */ |
|
|
|
/* extend jQuery expressions */ |
|
$.extend($.expr[":"],{ |
|
/* checks if element is within scrollable viewport */ |
|
mcsInView:$.expr[":"].mcsInView || function(el){ |
|
var $el=$(el),content=$el.parents(".mCSB_container"),wrapper,cPos; |
|
if(!content.length){return;} |
|
wrapper=content.parent(); |
|
cPos=[content[0].offsetTop,content[0].offsetLeft]; |
|
return cPos[0]+_childPos($el)[0]>=0 && cPos[0]+_childPos($el)[0]<wrapper.height()-$el.outerHeight(false) && |
|
cPos[1]+_childPos($el)[1]>=0 && cPos[1]+_childPos($el)[1]<wrapper.width()-$el.outerWidth(false); |
|
}, |
|
/* checks if element or part of element is in view of scrollable viewport */ |
|
mcsInSight:$.expr[":"].mcsInSight || function(el,i,m){ |
|
var $el=$(el),elD,content=$el.parents(".mCSB_container"),wrapperView,pos,wrapperViewPct, |
|
pctVals=m[3]==="exact" ? [[1,0],[1,0]] : [[0.9,0.1],[0.6,0.4]]; |
|
if(!content.length){return;} |
|
elD=[$el.outerHeight(false),$el.outerWidth(false)]; |
|
pos=[content[0].offsetTop+_childPos($el)[0],content[0].offsetLeft+_childPos($el)[1]]; |
|
wrapperView=[content.parent()[0].offsetHeight,content.parent()[0].offsetWidth]; |
|
wrapperViewPct=[elD[0]<wrapperView[0] ? pctVals[0] : pctVals[1],elD[1]<wrapperView[1] ? pctVals[0] : pctVals[1]]; |
|
return pos[0]-(wrapperView[0]*wrapperViewPct[0][0])<0 && pos[0]+elD[0]-(wrapperView[0]*wrapperViewPct[0][1])>=0 && |
|
pos[1]-(wrapperView[1]*wrapperViewPct[1][0])<0 && pos[1]+elD[1]-(wrapperView[1]*wrapperViewPct[1][1])>=0; |
|
}, |
|
/* checks if element is overflowed having visible scrollbar(s) */ |
|
mcsOverflow:$.expr[":"].mcsOverflow || function(el){ |
|
var d=$(el).data(pluginPfx); |
|
if(!d){return;} |
|
return d.overflowed[0] || d.overflowed[1]; |
|
} |
|
}); |
|
|
|
}); |
|
|
|
}))})); |