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jquery.mCustomScrollbar.js
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/*
== malihu jquery custom scrollbars plugin ==
version: 2.8.1
author: malihu (http://manos.malihu.gr)
plugin home: http://manos.malihu.gr/jquery-custom-content-scroller
*/
/*
Copyright 2010-2013 Manos Malihutsakis
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses/.
*/
(function($){
/*plugin script*/
var methods={
init:function(options){
var defaults={
set_width:false, /*optional element width: boolean, pixels, percentage*/
set_height:false, /*optional element height: boolean, pixels, percentage*/
horizontalScroll:false, /*scroll horizontally: boolean*/
scrollInertia:950, /*scrolling inertia: integer (milliseconds)*/
mouseWheel:true, /*mousewheel support: boolean*/
mouseWheelPixels:"auto", /*mousewheel pixels amount: integer, "auto"*/
autoDraggerLength:true, /*auto-adjust scrollbar dragger length: boolean*/
autoHideScrollbar:false, /*auto-hide scrollbar when idle*/
scrollButtons:{ /*scroll buttons*/
enable:false, /*scroll buttons support: boolean*/
scrollType:"continuous", /*scroll buttons scrolling type: "continuous", "pixels"*/
scrollSpeed:"auto", /*scroll buttons continuous scrolling speed: integer, "auto"*/
scrollAmount:40 /*scroll buttons pixels scroll amount: integer (pixels)*/
},
advanced:{
updateOnBrowserResize:true, /*update scrollbars on browser resize (for layouts based on percentages): boolean*/
updateOnContentResize:false, /*auto-update scrollbars on content resize (for dynamic content): boolean*/
autoExpandHorizontalScroll:false, /*auto-expand width for horizontal scrolling: boolean*/
autoScrollOnFocus:true, /*auto-scroll on focused elements: boolean*/
normalizeMouseWheelDelta:false /*normalize mouse-wheel delta (-1/1)*/
},
contentTouchScroll:true, /*scrolling by touch-swipe content: boolean*/
callbacks:{
onScrollStart:function(){}, /*user custom callback function on scroll start event*/
onScroll:function(){}, /*user custom callback function on scroll event*/
onTotalScroll:function(){}, /*user custom callback function on scroll end reached event*/
onTotalScrollBack:function(){}, /*user custom callback function on scroll begin reached event*/
onTotalScrollOffset:0, /*scroll end reached offset: integer (pixels)*/
onTotalScrollBackOffset:0, /*scroll begin reached offset: integer (pixels)*/
whileScrolling:function(){} /*user custom callback function on scrolling event*/
},
theme:"light" /*"light", "dark", "light-2", "dark-2", "light-thick", "dark-thick", "light-thin", "dark-thin"*/
},
options=$.extend(true,defaults,options);
return this.each(function(){
var $this=$(this);
/*set element width/height, create markup for custom scrollbars, add classes*/
if(options.set_width){
$this.css("width",options.set_width);
}
if(options.set_height){
$this.css("height",options.set_height);
}
if(!$(document).data("mCustomScrollbar-index")){
$(document).data("mCustomScrollbar-index","1");
}else{
var mCustomScrollbarIndex=parseInt($(document).data("mCustomScrollbar-index"));
$(document).data("mCustomScrollbar-index",mCustomScrollbarIndex+1);
}
$this.wrapInner("<div class='mCustomScrollBox"+" mCS-"+options.theme+"' id='mCSB_"+$(document).data("mCustomScrollbar-index")+"' style='position:relative; height:100%; overflow:hidden; max-width:100%;' />").addClass("mCustomScrollbar _mCS_"+$(document).data("mCustomScrollbar-index"));
var mCustomScrollBox=$this.children(".mCustomScrollBox");
if(options.horizontalScroll){
mCustomScrollBox.addClass("mCSB_horizontal").wrapInner("<div class='mCSB_h_wrapper' style='position:relative; left:0; width:999999px;' />");
var mCSB_h_wrapper=mCustomScrollBox.children(".mCSB_h_wrapper");
mCSB_h_wrapper.wrapInner("<div class='mCSB_container' style='position:absolute; left:0;' />").children(".mCSB_container").css({"width":mCSB_h_wrapper.children().outerWidth(),"position":"relative"}).unwrap();
}else{
mCustomScrollBox.wrapInner("<div class='mCSB_container' style='position:relative; top:0;' />");
}
var mCSB_container=mCustomScrollBox.children(".mCSB_container");
if($.support.touch){
mCSB_container.addClass("mCS_touch");
}
mCSB_container.after("<div class='mCSB_scrollTools' style='position:absolute;'><div class='mCSB_draggerContainer'><div class='mCSB_dragger' style='position:absolute;' oncontextmenu='return false;'><div class='mCSB_dragger_bar' style='position:relative;'></div></div><div class='mCSB_draggerRail'></div></div></div>");
var mCSB_scrollTools=mCustomScrollBox.children(".mCSB_scrollTools"),
mCSB_draggerContainer=mCSB_scrollTools.children(".mCSB_draggerContainer"),
mCSB_dragger=mCSB_draggerContainer.children(".mCSB_dragger");
if(options.horizontalScroll){
mCSB_dragger.data("minDraggerWidth",mCSB_dragger.width());
}else{
mCSB_dragger.data("minDraggerHeight",mCSB_dragger.height());
}
if(options.scrollButtons.enable){
if(options.horizontalScroll){
mCSB_scrollTools.prepend("<a class='mCSB_buttonLeft' oncontextmenu='return false;'></a>").append("<a class='mCSB_buttonRight' oncontextmenu='return false;'></a>");
}else{
mCSB_scrollTools.prepend("<a class='mCSB_buttonUp' oncontextmenu='return false;'></a>").append("<a class='mCSB_buttonDown' oncontextmenu='return false;'></a>");
}
}
/*mCustomScrollBox scrollTop and scrollLeft is always 0 to prevent browser focus scrolling*/
mCustomScrollBox.bind("scroll",function(){
if(!$this.is(".mCS_disabled")){ /*native focus scrolling for disabled scrollbars*/
mCustomScrollBox.scrollTop(0).scrollLeft(0);
}
});
/*store options, global vars/states, intervals*/
$this.data({
/*init state*/
"mCS_Init":true,
/*instance index*/
"mCustomScrollbarIndex":$(document).data("mCustomScrollbar-index"),
/*option parameters*/
"horizontalScroll":options.horizontalScroll,
"scrollInertia":options.scrollInertia,
"scrollEasing":"mcsEaseOut",
"mouseWheel":options.mouseWheel,
"mouseWheelPixels":options.mouseWheelPixels,
"autoDraggerLength":options.autoDraggerLength,
"autoHideScrollbar":options.autoHideScrollbar,
"scrollButtons_enable":options.scrollButtons.enable,
"scrollButtons_scrollType":options.scrollButtons.scrollType,
"scrollButtons_scrollSpeed":options.scrollButtons.scrollSpeed,
"scrollButtons_scrollAmount":options.scrollButtons.scrollAmount,
"autoExpandHorizontalScroll":options.advanced.autoExpandHorizontalScroll,
"autoScrollOnFocus":options.advanced.autoScrollOnFocus,
"normalizeMouseWheelDelta":options.advanced.normalizeMouseWheelDelta,
"contentTouchScroll":options.contentTouchScroll,
"onScrollStart_Callback":options.callbacks.onScrollStart,
"onScroll_Callback":options.callbacks.onScroll,
"onTotalScroll_Callback":options.callbacks.onTotalScroll,
"onTotalScrollBack_Callback":options.callbacks.onTotalScrollBack,
"onTotalScroll_Offset":options.callbacks.onTotalScrollOffset,
"onTotalScrollBack_Offset":options.callbacks.onTotalScrollBackOffset,
"whileScrolling_Callback":options.callbacks.whileScrolling,
/*events binding state*/
"bindEvent_scrollbar_drag":false,
"bindEvent_content_touch":false,
"bindEvent_scrollbar_click":false,
"bindEvent_mousewheel":false,
"bindEvent_buttonsContinuous_y":false,
"bindEvent_buttonsContinuous_x":false,
"bindEvent_buttonsPixels_y":false,
"bindEvent_buttonsPixels_x":false,
"bindEvent_focusin":false,
"bindEvent_autoHideScrollbar":false,
/*buttons intervals*/
"mCSB_buttonScrollRight":false,
"mCSB_buttonScrollLeft":false,
"mCSB_buttonScrollDown":false,
"mCSB_buttonScrollUp":false
});
/*max-width/max-height*/
if(options.horizontalScroll){
if($this.css("max-width")!=="none"){
if(!options.advanced.updateOnContentResize){ /*needs updateOnContentResize*/
options.advanced.updateOnContentResize=true;
}
}
}else{
if($this.css("max-height")!=="none"){
var percentage=false,maxHeight=parseInt($this.css("max-height"));
if($this.css("max-height").indexOf("%")>=0){
percentage=maxHeight,
maxHeight=$this.parent().height()*percentage/100;
}
$this.css("overflow","hidden");
mCustomScrollBox.css("max-height",maxHeight);
}
}
$this.mCustomScrollbar("update");
/*window resize fn (for layouts based on percentages)*/
if(options.advanced.updateOnBrowserResize){
var mCSB_resizeTimeout,currWinWidth=$(window).width(),currWinHeight=$(window).height();
$(window).bind("resize."+$this.data("mCustomScrollbarIndex"),function(){
if(mCSB_resizeTimeout){
clearTimeout(mCSB_resizeTimeout);
}
mCSB_resizeTimeout=setTimeout(function(){
if(!$this.is(".mCS_disabled") && !$this.is(".mCS_destroyed")){
var winWidth=$(window).width(),winHeight=$(window).height();
if(currWinWidth!==winWidth || currWinHeight!==winHeight){ /*ie8 fix*/
if($this.css("max-height")!=="none" && percentage){
mCustomScrollBox.css("max-height",$this.parent().height()*percentage/100);
}
$this.mCustomScrollbar("update");
currWinWidth=winWidth; currWinHeight=winHeight;
}
}
},150);
});
}
/*content resize fn (for dynamically generated content)*/
if(options.advanced.updateOnContentResize){
var mCSB_onContentResize;
if(options.horizontalScroll){
var mCSB_containerOldSize=mCSB_container.outerWidth();
}else{
var mCSB_containerOldSize=mCSB_container.outerHeight();
}
mCSB_onContentResize=setInterval(function(){
if(options.horizontalScroll){
if(options.advanced.autoExpandHorizontalScroll){
mCSB_container.css({"position":"absolute","width":"auto"}).wrap("<div class='mCSB_h_wrapper' style='position:relative; left:0; width:999999px;' />").css({"width":mCSB_container.outerWidth(),"position":"relative"}).unwrap();
}
var mCSB_containerNewSize=mCSB_container.outerWidth();
}else{
var mCSB_containerNewSize=mCSB_container.outerHeight();
}
if(mCSB_containerNewSize!=mCSB_containerOldSize){
$this.mCustomScrollbar("update");
mCSB_containerOldSize=mCSB_containerNewSize;
}
},300);
}
});
},
update:function(){
var $this=$(this),
mCustomScrollBox=$this.children(".mCustomScrollBox"),
mCSB_container=mCustomScrollBox.children(".mCSB_container");
mCSB_container.removeClass("mCS_no_scrollbar");
$this.removeClass("mCS_disabled mCS_destroyed");
mCustomScrollBox.scrollTop(0).scrollLeft(0); /*reset scrollTop/scrollLeft to prevent browser focus scrolling*/
var mCSB_scrollTools=mCustomScrollBox.children(".mCSB_scrollTools"),
mCSB_draggerContainer=mCSB_scrollTools.children(".mCSB_draggerContainer"),
mCSB_dragger=mCSB_draggerContainer.children(".mCSB_dragger");
if($this.data("horizontalScroll")){
var mCSB_buttonLeft=mCSB_scrollTools.children(".mCSB_buttonLeft"),
mCSB_buttonRight=mCSB_scrollTools.children(".mCSB_buttonRight"),
mCustomScrollBoxW=mCustomScrollBox.width();
if($this.data("autoExpandHorizontalScroll")){
mCSB_container.css({"position":"absolute","width":"auto"}).wrap("<div class='mCSB_h_wrapper' style='position:relative; left:0; width:999999px;' />").css({"width":mCSB_container.outerWidth(),"position":"relative"}).unwrap();
}
var mCSB_containerW=mCSB_container.outerWidth();
}else{
var mCSB_buttonUp=mCSB_scrollTools.children(".mCSB_buttonUp"),
mCSB_buttonDown=mCSB_scrollTools.children(".mCSB_buttonDown"),
mCustomScrollBoxH=mCustomScrollBox.height(),
mCSB_containerH=mCSB_container.outerHeight();
}
if(mCSB_containerH>mCustomScrollBoxH && !$this.data("horizontalScroll")){ /*content needs vertical scrolling*/
mCSB_scrollTools.css("display","block");
var mCSB_draggerContainerH=mCSB_draggerContainer.height();
/*auto adjust scrollbar dragger length analogous to content*/
if($this.data("autoDraggerLength")){
var draggerH=Math.round(mCustomScrollBoxH/mCSB_containerH*mCSB_draggerContainerH),
minDraggerH=mCSB_dragger.data("minDraggerHeight");
if(draggerH<=minDraggerH){ /*min dragger height*/
mCSB_dragger.css({"height":minDraggerH});
}else if(draggerH>=mCSB_draggerContainerH-10){ /*max dragger height*/
var mCSB_draggerContainerMaxH=mCSB_draggerContainerH-10;
mCSB_dragger.css({"height":mCSB_draggerContainerMaxH});
}else{
mCSB_dragger.css({"height":draggerH});
}
mCSB_dragger.children(".mCSB_dragger_bar").css({"line-height":mCSB_dragger.height()+"px"});
}
var mCSB_draggerH=mCSB_dragger.height(),
/*calculate and store scroll amount, add scrolling*/
scrollAmount=(mCSB_containerH-mCustomScrollBoxH)/(mCSB_draggerContainerH-mCSB_draggerH);
$this.data("scrollAmount",scrollAmount).mCustomScrollbar("scrolling",mCustomScrollBox,mCSB_container,mCSB_draggerContainer,mCSB_dragger,mCSB_buttonUp,mCSB_buttonDown,mCSB_buttonLeft,mCSB_buttonRight);
/*scroll*/
var mCSB_containerP=Math.abs(mCSB_container.position().top);
$this.mCustomScrollbar("scrollTo",mCSB_containerP,{scrollInertia:0,trigger:"internal"});
}else if(mCSB_containerW>mCustomScrollBoxW && $this.data("horizontalScroll")){ /*content needs horizontal scrolling*/
mCSB_scrollTools.css("display","block");
var mCSB_draggerContainerW=mCSB_draggerContainer.width();
/*auto adjust scrollbar dragger length analogous to content*/
if($this.data("autoDraggerLength")){
var draggerW=Math.round(mCustomScrollBoxW/mCSB_containerW*mCSB_draggerContainerW),
minDraggerW=mCSB_dragger.data("minDraggerWidth");
if(draggerW<=minDraggerW){ /*min dragger height*/
mCSB_dragger.css({"width":minDraggerW});
}else if(draggerW>=mCSB_draggerContainerW-10){ /*max dragger height*/
var mCSB_draggerContainerMaxW=mCSB_draggerContainerW-10;
mCSB_dragger.css({"width":mCSB_draggerContainerMaxW});
}else{
mCSB_dragger.css({"width":draggerW});
}
}
var mCSB_draggerW=mCSB_dragger.width(),
/*calculate and store scroll amount, add scrolling*/
scrollAmount=(mCSB_containerW-mCustomScrollBoxW)/(mCSB_draggerContainerW-mCSB_draggerW);
$this.data("scrollAmount",scrollAmount).mCustomScrollbar("scrolling",mCustomScrollBox,mCSB_container,mCSB_draggerContainer,mCSB_dragger,mCSB_buttonUp,mCSB_buttonDown,mCSB_buttonLeft,mCSB_buttonRight);
/*scroll*/
var mCSB_containerP=Math.abs(mCSB_container.position().left);
$this.mCustomScrollbar("scrollTo",mCSB_containerP,{scrollInertia:0,trigger:"internal"});
}else{ /*content does not need scrolling*/
/*unbind events, reset content position, hide scrollbars, remove classes*/
mCustomScrollBox.unbind("mousewheel focusin");
if($this.data("horizontalScroll")){
mCSB_dragger.add(mCSB_container).css("left",0);
}else{
mCSB_dragger.add(mCSB_container).css("top",0);
}
mCSB_scrollTools.css("display","none");
mCSB_container.addClass("mCS_no_scrollbar");
$this.data({"bindEvent_mousewheel":false,"bindEvent_focusin":false});
}
},
scrolling:function(mCustomScrollBox,mCSB_container,mCSB_draggerContainer,mCSB_dragger,mCSB_buttonUp,mCSB_buttonDown,mCSB_buttonLeft,mCSB_buttonRight){
var $this=$(this);
/*scrollbar drag scrolling*/
if(!$this.data("bindEvent_scrollbar_drag")){
var mCSB_draggerDragY,mCSB_draggerDragX;
if($.support.msPointer){ /*MSPointer*/
mCSB_dragger.bind("MSPointerDown",function(e){
e.preventDefault();
$this.data({"on_drag":true}); mCSB_dragger.addClass("mCSB_dragger_onDrag");
var elem=$(this),
elemOffset=elem.offset(),
x=e.originalEvent.pageX-elemOffset.left,
y=e.originalEvent.pageY-elemOffset.top;
if(x<elem.width() && x>0 && y<elem.height() && y>0){
mCSB_draggerDragY=y;
mCSB_draggerDragX=x;
}
});
$(document).bind("MSPointerMove."+$this.data("mCustomScrollbarIndex"),function(e){
e.preventDefault();
if($this.data("on_drag")){
var elem=mCSB_dragger,
elemOffset=elem.offset(),
x=e.originalEvent.pageX-elemOffset.left,
y=e.originalEvent.pageY-elemOffset.top;
scrollbarDrag(mCSB_draggerDragY,mCSB_draggerDragX,y,x);
}
}).bind("MSPointerUp."+$this.data("mCustomScrollbarIndex"),function(e){
$this.data({"on_drag":false}); mCSB_dragger.removeClass("mCSB_dragger_onDrag");
});
}else{ /*mouse/touch*/
mCSB_dragger.bind("mousedown touchstart",function(e){
e.preventDefault(); e.stopImmediatePropagation();
var elem=$(this),elemOffset=elem.offset(),x,y;
if(e.type==="touchstart"){
var touch=e.originalEvent.touches[0] || e.originalEvent.changedTouches[0];
x=touch.pageX-elemOffset.left; y=touch.pageY-elemOffset.top;
}else{
$this.data({"on_drag":true}); mCSB_dragger.addClass("mCSB_dragger_onDrag");
x=e.pageX-elemOffset.left; y=e.pageY-elemOffset.top;
}
if(x<elem.width() && x>0 && y<elem.height() && y>0){
mCSB_draggerDragY=y; mCSB_draggerDragX=x;
}
}).bind("touchmove",function(e){
e.preventDefault(); e.stopImmediatePropagation();
var touch=e.originalEvent.touches[0] || e.originalEvent.changedTouches[0],
elem=$(this),
elemOffset=elem.offset(),
x=touch.pageX-elemOffset.left,
y=touch.pageY-elemOffset.top;
scrollbarDrag(mCSB_draggerDragY,mCSB_draggerDragX,y,x);
});
$(document).bind("mousemove."+$this.data("mCustomScrollbarIndex"),function(e){
if($this.data("on_drag")){
var elem=mCSB_dragger,
elemOffset=elem.offset(),
x=e.pageX-elemOffset.left,
y=e.pageY-elemOffset.top;
scrollbarDrag(mCSB_draggerDragY,mCSB_draggerDragX,y,x);
}
}).bind("mouseup."+$this.data("mCustomScrollbarIndex"),function(e){
$this.data({"on_drag":false}); mCSB_dragger.removeClass("mCSB_dragger_onDrag");
});
}
$this.data({"bindEvent_scrollbar_drag":true});
}
function scrollbarDrag(mCSB_draggerDragY,mCSB_draggerDragX,y,x){
if($this.data("horizontalScroll")){
$this.mCustomScrollbar("scrollTo",(mCSB_dragger.position().left-(mCSB_draggerDragX))+x,{moveDragger:true,trigger:"internal"});
}else{
$this.mCustomScrollbar("scrollTo",(mCSB_dragger.position().top-(mCSB_draggerDragY))+y,{moveDragger:true,trigger:"internal"});
}
}
/*content touch-drag*/
if($.support.touch && $this.data("contentTouchScroll")){
if(!$this.data("bindEvent_content_touch")){
var touch,
elem,elemOffset,y,x,mCSB_containerTouchY,mCSB_containerTouchX;
mCSB_container.bind("touchstart",function(e){
e.stopImmediatePropagation();
touch=e.originalEvent.touches[0] || e.originalEvent.changedTouches[0];
elem=$(this);
elemOffset=elem.offset();
x=touch.pageX-elemOffset.left;
y=touch.pageY-elemOffset.top;
mCSB_containerTouchY=y;
mCSB_containerTouchX=x;
});
mCSB_container.bind("touchmove",function(e){
e.preventDefault(); e.stopImmediatePropagation();
touch=e.originalEvent.touches[0] || e.originalEvent.changedTouches[0];
elem=$(this).parent();
elemOffset=elem.offset();
x=touch.pageX-elemOffset.left;
y=touch.pageY-elemOffset.top;
if($this.data("horizontalScroll")){
$this.mCustomScrollbar("scrollTo",mCSB_containerTouchX-x,{trigger:"internal"});
}else{
$this.mCustomScrollbar("scrollTo",mCSB_containerTouchY-y,{trigger:"internal"});
}
});
}
}
/*dragger rail click scrolling*/
if(!$this.data("bindEvent_scrollbar_click")){
mCSB_draggerContainer.bind("click",function(e){
var scrollToPos=(e.pageY-mCSB_draggerContainer.offset().top)*$this.data("scrollAmount"),target=$(e.target);
if($this.data("horizontalScroll")){
scrollToPos=(e.pageX-mCSB_draggerContainer.offset().left)*$this.data("scrollAmount");
}
if(target.hasClass("mCSB_draggerContainer") || target.hasClass("mCSB_draggerRail")){
$this.mCustomScrollbar("scrollTo",scrollToPos,{trigger:"internal",scrollEasing:"draggerRailEase"});
}
});
$this.data({"bindEvent_scrollbar_click":true});
}
/*mousewheel scrolling*/
if($this.data("mouseWheel")){
if(!$this.data("bindEvent_mousewheel")){
mCustomScrollBox.bind("mousewheel",function(e,delta){
var scrollTo,mouseWheelPixels=$this.data("mouseWheelPixels"),absPos=Math.abs(mCSB_container.position().top),
draggerPos=mCSB_dragger.position().top,limit=mCSB_draggerContainer.height()-mCSB_dragger.height();
if($this.data("normalizeMouseWheelDelta")){
if(delta<0){delta=-1;}else{delta=1;}
}
if(mouseWheelPixels==="auto"){
mouseWheelPixels=100+Math.round($this.data("scrollAmount")/2);
}
if($this.data("horizontalScroll")){
draggerPos=mCSB_dragger.position().left;
limit=mCSB_draggerContainer.width()-mCSB_dragger.width();
absPos=Math.abs(mCSB_container.position().left);
}
if((delta>0 && draggerPos!==0) || (delta<0 && draggerPos!==limit)){e.preventDefault(); e.stopImmediatePropagation();}
scrollTo=absPos-(delta*mouseWheelPixels);
$this.mCustomScrollbar("scrollTo",scrollTo,{trigger:"internal"});
});
$this.data({"bindEvent_mousewheel":true});
}
}
/*buttons scrolling*/
if($this.data("scrollButtons_enable")){
if($this.data("scrollButtons_scrollType")==="pixels"){ /*scroll by pixels*/
if($this.data("horizontalScroll")){
mCSB_buttonRight.add(mCSB_buttonLeft).unbind("mousedown touchstart MSPointerDown mouseup MSPointerUp mouseout MSPointerOut touchend",mCSB_buttonRight_stop,mCSB_buttonLeft_stop);
$this.data({"bindEvent_buttonsContinuous_x":false});
if(!$this.data("bindEvent_buttonsPixels_x")){
/*scroll right*/
mCSB_buttonRight.bind("click",function(e){
e.preventDefault();
PixelsScrollTo(Math.abs(mCSB_container.position().left)+$this.data("scrollButtons_scrollAmount"));
});
/*scroll left*/
mCSB_buttonLeft.bind("click",function(e){
e.preventDefault();
PixelsScrollTo(Math.abs(mCSB_container.position().left)-$this.data("scrollButtons_scrollAmount"));
});
$this.data({"bindEvent_buttonsPixels_x":true});
}
}else{
mCSB_buttonDown.add(mCSB_buttonUp).unbind("mousedown touchstart MSPointerDown mouseup MSPointerUp mouseout MSPointerOut touchend",mCSB_buttonRight_stop,mCSB_buttonLeft_stop);
$this.data({"bindEvent_buttonsContinuous_y":false});
if(!$this.data("bindEvent_buttonsPixels_y")){
/*scroll down*/
mCSB_buttonDown.bind("click",function(e){
e.preventDefault();
PixelsScrollTo(Math.abs(mCSB_container.position().top)+$this.data("scrollButtons_scrollAmount"));
});
/*scroll up*/
mCSB_buttonUp.bind("click",function(e){
e.preventDefault();
PixelsScrollTo(Math.abs(mCSB_container.position().top)-$this.data("scrollButtons_scrollAmount"));
});
$this.data({"bindEvent_buttonsPixels_y":true});
}
}
function PixelsScrollTo(to){
if(!mCSB_dragger.data("preventAction")){
mCSB_dragger.data("preventAction",true);
$this.mCustomScrollbar("scrollTo",to,{trigger:"internal"});
}
}
}else{ /*continuous scrolling*/
if($this.data("horizontalScroll")){
mCSB_buttonRight.add(mCSB_buttonLeft).unbind("click");
$this.data({"bindEvent_buttonsPixels_x":false});
if(!$this.data("bindEvent_buttonsContinuous_x")){
/*scroll right*/
mCSB_buttonRight.bind("mousedown touchstart MSPointerDown",function(e){
e.preventDefault();
var scrollButtonsSpeed=ScrollButtonsSpeed();
$this.data({"mCSB_buttonScrollRight":setInterval(function(){
$this.mCustomScrollbar("scrollTo",Math.abs(mCSB_container.position().left)+scrollButtonsSpeed,{trigger:"internal",scrollEasing:"easeOutCirc"});
},17)});
});
var mCSB_buttonRight_stop=function(e){
e.preventDefault(); clearInterval($this.data("mCSB_buttonScrollRight"));
}
mCSB_buttonRight.bind("mouseup touchend MSPointerUp mouseout MSPointerOut",mCSB_buttonRight_stop);
/*scroll left*/
mCSB_buttonLeft.bind("mousedown touchstart MSPointerDown",function(e){
e.preventDefault();
var scrollButtonsSpeed=ScrollButtonsSpeed();
$this.data({"mCSB_buttonScrollLeft":setInterval(function(){
$this.mCustomScrollbar("scrollTo",Math.abs(mCSB_container.position().left)-scrollButtonsSpeed,{trigger:"internal",scrollEasing:"easeOutCirc"});
},17)});
});
var mCSB_buttonLeft_stop=function(e){
e.preventDefault(); clearInterval($this.data("mCSB_buttonScrollLeft"));
}
mCSB_buttonLeft.bind("mouseup touchend MSPointerUp mouseout MSPointerOut",mCSB_buttonLeft_stop);
$this.data({"bindEvent_buttonsContinuous_x":true});
}
}else{
mCSB_buttonDown.add(mCSB_buttonUp).unbind("click");
$this.data({"bindEvent_buttonsPixels_y":false});
if(!$this.data("bindEvent_buttonsContinuous_y")){
/*scroll down*/
mCSB_buttonDown.bind("mousedown touchstart MSPointerDown",function(e){
e.preventDefault();
var scrollButtonsSpeed=ScrollButtonsSpeed();
$this.data({"mCSB_buttonScrollDown":setInterval(function(){
$this.mCustomScrollbar("scrollTo",Math.abs(mCSB_container.position().top)+scrollButtonsSpeed,{trigger:"internal",scrollEasing:"easeOutCirc"});
},17)});
});
var mCSB_buttonDown_stop=function(e){
e.preventDefault(); clearInterval($this.data("mCSB_buttonScrollDown"));
}
mCSB_buttonDown.bind("mouseup touchend MSPointerUp mouseout MSPointerOut",mCSB_buttonDown_stop);
/*scroll up*/
mCSB_buttonUp.bind("mousedown touchstart MSPointerDown",function(e){
e.preventDefault();
var scrollButtonsSpeed=ScrollButtonsSpeed();
$this.data({"mCSB_buttonScrollUp":setInterval(function(){
$this.mCustomScrollbar("scrollTo",Math.abs(mCSB_container.position().top)-scrollButtonsSpeed,{trigger:"internal",scrollEasing:"easeOutCirc"});
},17)});
});
var mCSB_buttonUp_stop=function(e){
e.preventDefault(); clearInterval($this.data("mCSB_buttonScrollUp"));
}
mCSB_buttonUp.bind("mouseup touchend MSPointerUp mouseout MSPointerOut",mCSB_buttonUp_stop);
$this.data({"bindEvent_buttonsContinuous_y":true});
}
}
function ScrollButtonsSpeed(){
var speed=$this.data("scrollButtons_scrollSpeed");
if($this.data("scrollButtons_scrollSpeed")==="auto"){
speed=Math.round(($this.data("scrollInertia")+100)/40);
}
return speed;
}
}
}
/*scrolling on element focus (e.g. via TAB key)*/
if($this.data("autoScrollOnFocus")){
if(!$this.data("bindEvent_focusin")){
mCustomScrollBox.bind("focusin",function(){
mCustomScrollBox.scrollTop(0).scrollLeft(0);
var focusedElem=$(document.activeElement);
if(focusedElem.is("input,textarea,select,button,a[tabindex],area,object")){
var mCSB_containerPos=mCSB_container.position().top,
focusedElemPos=focusedElem.position().top,
visibleLimit=mCustomScrollBox.height()-focusedElem.outerHeight();
if($this.data("horizontalScroll")){
mCSB_containerPos=mCSB_container.position().left;
focusedElemPos=focusedElem.position().left;
visibleLimit=mCustomScrollBox.width()-focusedElem.outerWidth();
}
if(mCSB_containerPos+focusedElemPos<0 || mCSB_containerPos+focusedElemPos>visibleLimit){
$this.mCustomScrollbar("scrollTo",focusedElemPos,{trigger:"internal"});
}
}
});
$this.data({"bindEvent_focusin":true});
}
}
/*auto-hide scrollbar*/
if($this.data("autoHideScrollbar")){
if(!$this.data("bindEvent_autoHideScrollbar")){
mCustomScrollBox.bind("mouseenter",function(e){
mCustomScrollBox.addClass("mCS-mouse-over");
functions.showScrollbar.call(mCustomScrollBox.children(".mCSB_scrollTools"));
}).bind("mouseleave touchend",function(e){
mCustomScrollBox.removeClass("mCS-mouse-over");
if(e.type==="mouseleave"){functions.hideScrollbar.call(mCustomScrollBox.children(".mCSB_scrollTools"));}
});
$this.data({"bindEvent_autoHideScrollbar":true});
}
}
},
scrollTo:function(scrollTo,options){
var $this=$(this),
defaults={
moveDragger:false,
trigger:"external",
callbacks:true,
scrollInertia:$this.data("scrollInertia"),
scrollEasing:$this.data("scrollEasing")
},
options=$.extend(defaults,options),
draggerScrollTo,
mCustomScrollBox=$this.children(".mCustomScrollBox"),
mCSB_container=mCustomScrollBox.children(".mCSB_container"),
mCSB_scrollTools=mCustomScrollBox.children(".mCSB_scrollTools"),
mCSB_draggerContainer=mCSB_scrollTools.children(".mCSB_draggerContainer"),
mCSB_dragger=mCSB_draggerContainer.children(".mCSB_dragger"),
contentSpeed=draggerSpeed=options.scrollInertia,
scrollBeginning,scrollBeginningOffset,totalScroll,totalScrollOffset;
if(!mCSB_container.hasClass("mCS_no_scrollbar")){
$this.data({"mCS_trigger":options.trigger});
if($this.data("mCS_Init")){options.callbacks=false;}
if(scrollTo || scrollTo===0){
if(typeof(scrollTo)==="number"){ /*if integer, scroll by number of pixels*/
if(options.moveDragger){ /*scroll dragger*/
draggerScrollTo=scrollTo;
if($this.data("horizontalScroll")){
scrollTo=mCSB_dragger.position().left*$this.data("scrollAmount");
}else{
scrollTo=mCSB_dragger.position().top*$this.data("scrollAmount");
}
draggerSpeed=0;
}else{ /*scroll content by default*/
draggerScrollTo=scrollTo/$this.data("scrollAmount");
}
}else if(typeof(scrollTo)==="string"){ /*if string, scroll by element position*/
var target;
if(scrollTo==="top"){ /*scroll to top*/
target=0;
}else if(scrollTo==="bottom" && !$this.data("horizontalScroll")){ /*scroll to bottom*/
target=mCSB_container.outerHeight()-mCustomScrollBox.height();
}else if(scrollTo==="left"){ /*scroll to left*/
target=0;
}else if(scrollTo==="right" && $this.data("horizontalScroll")){ /*scroll to right*/
target=mCSB_container.outerWidth()-mCustomScrollBox.width();
}else if(scrollTo==="first"){ /*scroll to first element position*/
target=$this.find(".mCSB_container").find(":first");
}else if(scrollTo==="last"){ /*scroll to last element position*/
target=$this.find(".mCSB_container").find(":last");
}else{ /*scroll to element position*/
target=$this.find(scrollTo);
}
if(target.length===1){ /*if such unique element exists, scroll to it*/
if($this.data("horizontalScroll")){
scrollTo=target.position().left;
}else{
scrollTo=target.position().top;
}
draggerScrollTo=scrollTo/$this.data("scrollAmount");
}else{
draggerScrollTo=scrollTo=target;
}
}
/*scroll to*/
if($this.data("horizontalScroll")){
if($this.data("onTotalScrollBack_Offset")){ /*scroll beginning offset*/
scrollBeginningOffset=-$this.data("onTotalScrollBack_Offset");
}
if($this.data("onTotalScroll_Offset")){ /*total scroll offset*/
totalScrollOffset=mCustomScrollBox.width()-mCSB_container.outerWidth()+$this.data("onTotalScroll_Offset");
}
if(draggerScrollTo<0){ /*scroll start position*/
draggerScrollTo=scrollTo=0; clearInterval($this.data("mCSB_buttonScrollLeft"));
if(!scrollBeginningOffset){scrollBeginning=true;}
}else if(draggerScrollTo>=mCSB_draggerContainer.width()-mCSB_dragger.width()){ /*scroll end position*/
draggerScrollTo=mCSB_draggerContainer.width()-mCSB_dragger.width();
scrollTo=mCustomScrollBox.width()-mCSB_container.outerWidth(); clearInterval($this.data("mCSB_buttonScrollRight"));
if(!totalScrollOffset){totalScroll=true;}
}else{scrollTo=-scrollTo;}
/*scrolling animation*/
functions.mTweenAxis.call(this,mCSB_dragger[0],"left",Math.round(draggerScrollTo),draggerSpeed,options.scrollEasing);
functions.mTweenAxis.call(this,mCSB_container[0],"left",Math.round(scrollTo),contentSpeed,options.scrollEasing,{
onStart:function(){
if(options.callbacks && !$this.data("mCS_tweenRunning")){callbacks("onScrollStart");}
if($this.data("autoHideScrollbar")){functions.showScrollbar.call(mCSB_scrollTools);}
},
onUpdate:function(){
if(options.callbacks){callbacks("whileScrolling");}
},
onComplete:function(){
if(options.callbacks){
callbacks("onScroll");
if(scrollBeginning || (scrollBeginningOffset && mCSB_container.position().left>=scrollBeginningOffset)){callbacks("onTotalScrollBack");}
if(totalScroll || (totalScrollOffset && mCSB_container.position().left<=totalScrollOffset)){callbacks("onTotalScroll");}
}
mCSB_dragger.data("preventAction",false); $this.data("mCS_tweenRunning",false);
if($this.data("autoHideScrollbar")){if(!mCustomScrollBox.hasClass("mCS-mouse-over")){functions.hideScrollbar.call(mCSB_scrollTools);}}
}
});
}else{
if($this.data("onTotalScrollBack_Offset")){ /*scroll beginning offset*/
scrollBeginningOffset=-$this.data("onTotalScrollBack_Offset");
}
if($this.data("onTotalScroll_Offset")){ /*total scroll offset*/
totalScrollOffset=mCustomScrollBox.height()-mCSB_container.outerHeight()+$this.data("onTotalScroll_Offset");
}
if(draggerScrollTo<0){ /*scroll start position*/
draggerScrollTo=scrollTo=0; clearInterval($this.data("mCSB_buttonScrollUp"));
if(!scrollBeginningOffset){scrollBeginning=true;}
}else if(draggerScrollTo>=mCSB_draggerContainer.height()-mCSB_dragger.height()){ /*scroll end position*/
draggerScrollTo=mCSB_draggerContainer.height()-mCSB_dragger.height();
scrollTo=mCustomScrollBox.height()-mCSB_container.outerHeight(); clearInterval($this.data("mCSB_buttonScrollDown"));
if(!totalScrollOffset){totalScroll=true;}
}else{scrollTo=-scrollTo;}
/*scrolling animation*/
functions.mTweenAxis.call(this,mCSB_dragger[0],"top",Math.round(draggerScrollTo),draggerSpeed,options.scrollEasing);
functions.mTweenAxis.call(this,mCSB_container[0],"top",Math.round(scrollTo),contentSpeed,options.scrollEasing,{
onStart:function(){
if(options.callbacks && !$this.data("mCS_tweenRunning")){callbacks("onScrollStart");}
if($this.data("autoHideScrollbar")){functions.showScrollbar.call(mCSB_scrollTools);}
},
onUpdate:function(){
if(options.callbacks){callbacks("whileScrolling");}
},
onComplete:function(){
if(options.callbacks){
callbacks("onScroll");
if(scrollBeginning || (scrollBeginningOffset && mCSB_container.position().top>=scrollBeginningOffset)){callbacks("onTotalScrollBack");}
if(totalScroll || (totalScrollOffset && mCSB_container.position().top<=totalScrollOffset)){callbacks("onTotalScroll");}
}
mCSB_dragger.data("preventAction",false); $this.data("mCS_tweenRunning",false);
if($this.data("autoHideScrollbar")){if(!mCustomScrollBox.hasClass("mCS-mouse-over")){functions.hideScrollbar.call(mCSB_scrollTools);}}
}
});
}
if($this.data("mCS_Init")){$this.data({"mCS_Init":false});}
}
}
/*callbacks*/
function callbacks(cb){
this.mcs={
top:mCSB_container.position().top,left:mCSB_container.position().left,
draggerTop:mCSB_dragger.position().top,draggerLeft:mCSB_dragger.position().left,
topPct:Math.round((100*Math.abs(mCSB_container.position().top))/Math.abs(mCSB_container.outerHeight()-mCustomScrollBox.height())),
leftPct:Math.round((100*Math.abs(mCSB_container.position().left))/Math.abs(mCSB_container.outerWidth()-mCustomScrollBox.width()))
};
switch(cb){
/*start scrolling callback*/
case "onScrollStart":
$this.data("mCS_tweenRunning",true).data("onScrollStart_Callback").call($this,this.mcs);
break;
case "whileScrolling":
$this.data("whileScrolling_Callback").call($this,this.mcs);
break;
case "onScroll":
$this.data("onScroll_Callback").call($this,this.mcs);
break;
case "onTotalScrollBack":
$this.data("onTotalScrollBack_Callback").call($this,this.mcs);
break;
case "onTotalScroll":
$this.data("onTotalScroll_Callback").call($this,this.mcs);
break;
}
}
},
stop:function(){
var $this=$(this),
mCSB_container=$this.children().children(".mCSB_container"),
mCSB_dragger=$this.children().children().children().children(".mCSB_dragger");
functions.mTweenAxisStop.call(this,mCSB_container[0]);
functions.mTweenAxisStop.call(this,mCSB_dragger[0]);
},
disable:function(resetScroll){
var $this=$(this),
mCustomScrollBox=$this.children(".mCustomScrollBox"),
mCSB_container=mCustomScrollBox.children(".mCSB_container"),
mCSB_scrollTools=mCustomScrollBox.children(".mCSB_scrollTools"),
mCSB_dragger=mCSB_scrollTools.children().children(".mCSB_dragger");
mCustomScrollBox.unbind("mousewheel focusin mouseenter mouseleave touchend");
mCSB_container.unbind("touchstart touchmove")
if(resetScroll){
if($this.data("horizontalScroll")){
mCSB_dragger.add(mCSB_container).css("left",0);
}else{
mCSB_dragger.add(mCSB_container).css("top",0);
}
}
mCSB_scrollTools.css("display","none");
mCSB_container.addClass("mCS_no_scrollbar");
$this.data({"bindEvent_mousewheel":false,"bindEvent_focusin":false,"bindEvent_content_touch":false,"bindEvent_autoHideScrollbar":false}).addClass("mCS_disabled");
},
destroy:function(){
var $this=$(this);
$this.removeClass("mCustomScrollbar _mCS_"+$this.data("mCustomScrollbarIndex")).addClass("mCS_destroyed").children().children(".mCSB_container").unwrap().children().unwrap().siblings(".mCSB_scrollTools").remove();
$(document).unbind("mousemove."+$this.data("mCustomScrollbarIndex")+" mouseup."+$this.data("mCustomScrollbarIndex")+" MSPointerMove."+$this.data("mCustomScrollbarIndex")+" MSPointerUp."+$this.data("mCustomScrollbarIndex"));
$(window).unbind("resize."+$this.data("mCustomScrollbarIndex"));
}
},
functions={
/*hide/show scrollbar*/
showScrollbar:function(){
this.stop().animate({opacity:1},"fast");
},
hideScrollbar:function(){
this.stop().animate({opacity:0},"fast");
},
/*js animation tween*/
mTweenAxis:function(el,prop,to,duration,easing,callbacks){
var callbacks=callbacks || {},
onStart=callbacks.onStart || function(){},onUpdate=callbacks.onUpdate || function(){},onComplete=callbacks.onComplete || function(){};
var startTime=_getTime(),_delay,progress=0,from=el.offsetTop,elStyle=el.style;
if(prop==="left"){from=el.offsetLeft;}
var diff=to-from;
_cancelTween();
_startTween();
function _getTime(){
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();}
}
}
}
function _step(){
if(!progress){onStart.call();}
progress=_getTime()-startTime;
_tween();
if(progress>=el._time){
el._time=(progress>el._time) ? progress+_delay-(progress- el._time) : progress+_delay-1;
if(el._time<progress+1){el._time=progress+1;}
}
if(el._time<duration){el._id=_request(_step);}else{onComplete.call();}
}
function _tween(){
if(duration>0){
el.currVal=_ease(el._time,from,diff,duration,easing);
elStyle[prop]=Math.round(el.currVal)+"px";
}else{
elStyle[prop]=to+"px";
}
onUpdate.call();
}
function _startTween(){
_delay=1000/60;
el._time=progress+_delay;
_request=(!window.requestAnimationFrame) ? function(f){_tween(); return setTimeout(f,0.01);} : window.requestAnimationFrame;
el._id=_request(_step);
}
function _cancelTween(){
if(el._id==null){return;}
if(!window.requestAnimationFrame){clearTimeout(el._id);
}else{window.cancelAnimationFrame(el._id);}
el._id=null;
}
function _ease(t,b,c,d,type){
switch(type){
case "linear":
return c*t/d + b;
break;
case "easeOutQuad":
t /= d; return -c * t*(t-2) + b;
break;
case "easeInOutQuad":
t /= d/2;
if (t < 1) return c/2*t*t + b;
t--;
return -c/2 * (t*(t-2) - 1) + b;
break;
case "easeOutCubic":
t /= d; t--; return c*(t*t*t + 1) + b;
break;
case "easeOutQuart":
t /= d; t--; return -c * (t*t*t*t - 1) + b;
break;
case "easeOutQuint":
t /= d; t--; return c*(t*t*t*t*t + 1) + b;
break;
case "easeOutCirc":
t /= d; t--; return c * Math.sqrt(1 - t*t) + b;
break;
case "easeOutSine":
return c * Math.sin(t/d * (Math.PI/2)) + b;
break;
case "easeOutExpo":
return c * ( -Math.pow( 2, -10 * t/d ) + 1 ) + b;
break;
case "mcsEaseOut":
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);
break;
case "draggerRailEase":
t /= d/2;
if (t < 1) return c/2*t*t*t + b;
t -= 2;
return c/2*(t*t*t + 2) + b;
break;
}
}
},
/*stop js animation tweens*/
mTweenAxisStop:function(el){
if(el._id==null){return;}
if(!window.requestAnimationFrame){clearTimeout(el._id);
}else{window.cancelAnimationFrame(el._id);}
el._id=null;
},
/*detect requestAnimationFrame and polyfill*/
rafPolyfill:function(){
var pfx=["ms","moz","webkit","o"],i=pfx.length;
while(--i > -1 && !window.requestAnimationFrame){
window.requestAnimationFrame=window[pfx[i]+"RequestAnimationFrame"];
window.cancelAnimationFrame=window[pfx[i]+"CancelAnimationFrame"] || window[pfx[i]+"CancelRequestAnimationFrame"];
}
}
}
/*detect features*/
functions.rafPolyfill.call(); /*requestAnimationFrame*/
$.support.touch=!!('ontouchstart' in window); /*touch*/
$.support.msPointer=window.navigator.msPointerEnabled; /*MSPointer support*/
/*plugin dependencies*/
var _dlp=("https:"==document.location.protocol) ? "https:" : "http:";
$.event.special.mousewheel || document.write('<script src="'+_dlp+'//cdnjs.cloudflare.com/ajax/libs/jquery-mousewheel/3.0.6/jquery.mousewheel.min.js"><\/script>');
/*plugin fn*/
$.fn.mCustomScrollbar=function(method){
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");
}
};
})(jQuery);