/*
== malihu jquery thumbnail scroller plugin ==
Version: 2.0.3
Plugin URI: http://manos.malihu.gr/jquery-thumbnail-scroller
Author: malihu
Author URI: http://manos.malihu.gr
License: MIT License (MIT)
*/
/*
Copyright 2010 Manos Malihutsakis (email: manos@malihu.gr)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
/*
The code below is fairly long, fully commented and should be normally used in development.
For production, use the minified jquery.mThumbnailScroller.min.js script.
*/
;(function($,window,document){
/*
----------------------------------------
PLUGIN NAMESPACE, PREFIX, DEFAULT SELECTOR(S)
----------------------------------------
*/
var pluginNS="mThumbnailScroller",
pluginPfx="mTS",
defaultSelector=".mThumbnailScroller",
/*
----------------------------------------
DEFAULT OPTIONS
----------------------------------------
*/
defaults={
/*
set element/content width/height programmatically
values: boolean, pixels, percentage
option default
-------------------------------------
setWidth false
setHeight false
*/
/*
set the initial css top property of content
values: string (e.g. "-100px", "10%" etc.)
*/
setTop:0,
/*
set the initial css left property of content
values: string (e.g. "-100px", "10%" etc.)
*/
setLeft:0,
/*
set the scrolling type
values (string): "hover-0"/"hover-100" (number indicating percentage), "hover-precise", "click-0"/"click-100" (number indicating percentage), "click-thumb"
*/
type:"hover-50",
/*
scroller axis (vertical and/or horizontal)
values (string): "y", "x", "yx"
*/
axis:"x",
/*
scrolling speed
values: integer (higher=faster)
*/
speed:15,
/*
enable content touch-swipe scrolling
values: boolean, integer, string (number)
integer values define the axis-specific minimum amount required for scrolling momentum
*/
contentTouchScroll:25,
/*
markup option parameters
*/
markup:{
/*
thumbnailsContainer sets the element containing your thumbnails. By default this is an unordered list ("ul")
thumbnailContainer sets the element containing each thumbnail. By default this is a list-item ("li")
thumbnailElement sets the actual thumbnail element. By default this is an image tag ("img")
values: boolean, string
option default
-------------------------------------
thumbnailsContainer null
thumbnailContainer null
thumbnailElement null
*/
/*
set the placeholder element of the buttons
values: boolean, string
*/
buttonsPlaceholder:false,
/*
set buttons HTML
*/
buttonsHTML:{
up:"SVG set 1",
down:"SVG set 1",
left:"SVG set 1",
right:"SVG set 1"
}
},
/*
advanced option parameters
*/
advanced:{
/*
auto-expand content horizontally (for "x" or "yx" axis)
values: boolean
*/
autoExpandHorizontalScroll:true,
/*
auto-update scrollers on content, element or viewport resize
should be true for fluid layouts/elements, adding/removing content dynamically, hiding/showing elements, content with images etc.
values: boolean
*/
updateOnContentResize:true,
/*
auto-update scrollers each time each image inside the element is fully loaded
values: boolean
*/
updateOnImageLoad:true
/*
auto-update scrollers based on the amount and size changes of specific selectors
useful when you need to update the scroller(s) automatically, each time a type of element is added, removed or changes its size
values: boolean, string (e.g. "ul li" will auto-update the scroller each time list-items inside the element are changed)
a value of true (boolean) will auto-update the scroller each time any element is changed
option default
-------------------------------------
updateOnSelectorChange null
*/
},
/*
scroller theme
values: string
*/
theme:"none",
/*
user defined callback functions
*/
callbacks:{
/*
Available callbacks:
callback default
-------------------------------------
onInit null
onScrollStart null
onScroll null
onTotalScroll null
onTotalScrollBack null
whileScrolling null
*/
onTotalScrollOffset:0,
onTotalScrollBackOffset:0,
alwaysTriggerOffsets:true
}
/*
add scroller(s) on all elements matching the current selector, now and in the future
values: boolean, string
string values: "on" (enable), "once" (disable after first invocation), "off" (disable)
liveSelector values: string (selector)
option default
-------------------------------------
live false
liveSelector null
*/
},
/*
----------------------------------------
VARS, CONSTANTS
----------------------------------------
*/
totalInstances=0, /* plugin instances amount */
liveTimers={}, /* live option timers */
oldIE=(window.attachEvent && !window.addEventListener) ? 1 : 0, /* detect IE < 9 */
touchActive=false, /* global touch state (for touch and pointer events) */
touchi, /* touch interface */
/* general plugin classes */
classes=["mTS_disabled","mTS_destroyed","mTS_no_scroll"],
/*
----------------------------------------
METHODS
----------------------------------------
*/
methods={
/*
plugin initialization method
creates the scroller(s), plugin data object and options
----------------------------------------
*/
init:function(options){
var options=$.extend(true,{},defaults,options),
selector=_selector.call(this); /* validate selector */
/*
if live option is enabled, monitor for elements matching the current selector and
apply scroller(s) when found (now and in the future)
*/
if(options.live){
var liveSelector=options.liveSelector || this.selector || defaultSelector, /* live selector(s) */
$liveSelector=$(liveSelector); /* live selector(s) as jquery object */
if(options.live==="off"){
/*
disable live if requested
usage: $(selector).mThumbnailScroller({live:"off"});
*/
removeLiveTimers(liveSelector);
return;
}
liveTimers[liveSelector]=setTimeout(function(){
/* call mThumbnailScroller fn on live selector(s) every half-second */
$liveSelector.mThumbnailScroller(options);
if(options.live==="once" && $liveSelector.length){
/* disable live after first invocation */
removeLiveTimers(liveSelector);
}
},500);
}else{
removeLiveTimers(liveSelector);
}
/* options normalization */
options.speed=options.speed===0 ? 100 : options.speed;
_theme(options); /* theme-specific options */
/* plugin constructor */
return $(selector).each(function(){
var $this=$(this);
if(!$this.data(pluginPfx)){ /* prevent multiple instantiations */
/* store options and create objects in jquery data */
$this.data(pluginPfx,{
idx:++totalInstances, /* instance index */
opt:options, /* options */
html:null, /* element original html */
overflowed:null, /* overflowed axis */
bindEvents:false, /* object to check if events are bound */
tweenRunning:false, /* object to check if tween is running */
langDir:$this.css("direction"), /* detect/store direction (ltr or rtl) */
cbOffsets:null, /* object to check whether callback offsets always trigger */
/*
object to check how scrolling events where last triggered
"internal" (default - triggered by this script), "external" (triggered by other scripts, e.g. via scrollTo method)
usage: object.data("mTS").trigger
*/
trigger:null
});
/* HTML data attributes */
var o=$this.data(pluginPfx).opt,
htmlDataAxis=$this.data("mts-axis"),htmlDataType=$this.data("mts-type"),htmlDataTheme=$this.data("mts-theme");
if(htmlDataAxis){o.axis=htmlDataAxis;} /* usage example: data-mts-axis="y" */
if(htmlDataType){o.type=htmlDataType;} /* usage example: data-mts-type="hover-50" */
if(htmlDataTheme){ /* usage example: data-mts-theme="theme-name" */
o.theme=htmlDataTheme;
_theme(o); /* theme-specific options */
}
_pluginMarkup.call(this); /* add plugin markup */
methods.update.call(null,$this); /* call the update method */
}
});
},
/* ---------------------------------------- */
/*
plugin update method
updates content and scroller values, events and status
----------------------------------------
usage: $(selector).mThumbnailScroller("update");
*/
update:function(el){
var selector=el || _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,
mTS_container=$("#mTS_"+d.idx+"_container");
if(!mTS_container.length){return;}
if(d.tweenRunning){_stop($this);} /* stop any running tweens while updating */
/* if element was disabled or destroyed, remove class(es) */
if($this.hasClass(classes[0])){$this.removeClass(classes[0]);}
if($this.hasClass(classes[1])){$this.removeClass(classes[1]);}
_maxHeight.call(this); /* detect/set css max-height value */
_expandContentHorizontally.call(this); /* expand content horizontally */
d.overflowed=_overflowed.call(this); /* determine if scrolling is required */
_buttonsVisibility.call(this); /* show/hide buttons */
_bindEvents.call(this); /* bind scroller events */
/* reset scrolling position and/or events */
var to=[(mTS_container[0].offsetTop),(mTS_container[0].offsetLeft)];
if(o.axis!=="x"){ /* y/yx axis */
if(!d.overflowed[0]){ /* y scrolling is not required */
_resetContentPosition.call(this); /* reset content position */
if(o.axis==="y"){
_scrollTo($this,"0",{dir:"y",dur:0,overwrite:"none"});
_unbindEvents.call(this);
}else if(o.axis==="yx" && d.overflowed[1]){
_scrollTo($this,to[1].toString(),{dir:"x",dur:0,overwrite:"none"});
}
}else{ /* y scrolling is required */
_scrollTo($this,to[0].toString(),{dir:"y",dur:0,overwrite:"none"});
}
}
if(o.axis!=="y"){ /* x/yx axis */
if(!d.overflowed[1]){ /* x scrolling is not required */
_resetContentPosition.call(this); /* reset content position */
if(o.axis==="x"){
_scrollTo($this,"0",{dir:"x",dur:0,overwrite:"none"});
_unbindEvents.call(this);
}else if(o.axis==="yx" && d.overflowed[0]){
_scrollTo($this,to[0].toString(),{dir:"y",dur:0,overwrite:"none"});
}
}else{ /* x scrolling is required */
_scrollTo($this,to[1].toString(),{dir:"x",dur:0,overwrite:"none"});
}
}
/* no scroll class */
if(!d.overflowed[0] && !d.overflowed[1]){
$this.addClass(classes[2]);
}else{
$this.removeClass(classes[2]);
}
_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).mThumbnailScroller("scrollTo",value,options);
*/
scrollTo:function(val,options){
/* prevent silly things like $(selector).mThumbnailScroller("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) */
speed:o.speed, /* scrolling speed */
duration:1000, /* animation duration */
easing:"easeInOut", /* animation easing */
timeout:60, /* scroll-to delay */
callbacks:true, /* enable/disable callbacks */
onStart:true,
onUpdate:true,
onComplete:true
},
methodOptions=$.extend(true,{},methodDefaults,options),
to=_arr.call(this,val),dur=methodOptions.duration ? methodOptions.duration : 7000/(methodOptions.speed || 1);
/* translate yx values to actual scroll-to positions */
to[0]=_to.call(this,to[0],"y");
to[1]=_to.call(this,to[1],"x");
methodOptions.dur=dur>0 && dur<17 ? 17 : dur;
setTimeout(function(){
/* do the scrolling */
if(to[0]!==null && typeof to[0]!=="undefined" && o.axis!=="x" && d.overflowed[0]){ /* scroll y */
methodOptions.dir="y";
methodOptions.overwrite="all";
_scrollTo($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).mThumbnailScroller("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 scroller
----------------------------------------
usage: $(selector).mThumbnailScroller("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),o=d.opt;
_autoUpdate.call(this,"remove"); /* remove automatic updating */
_unbindEvents.call(this); /* unbind events */
if(r){_resetContentPosition.call(this);} /* reset content position */
_buttonsVisibility.call(this,true); /* show/hide buttons */
$this.addClass(classes[0]); /* add disable class */
}
});
},
/* ---------------------------------------- */
/*
plugin destroy method
completely removes the scrollber and returns the element to its original state
----------------------------------------
usage: $(selector).mThumbnailScroller("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,
mTS_wrapper=$("#mTS_"+d.idx),
mTS_container=$("#mTS_"+d.idx+"_container"),
mTS_buttons=$("#mTS_"+d.idx+"_buttonUp,#mTS_"+d.idx+"_buttonDown,#mTS_"+d.idx+"_buttonLeft,#mTS_"+d.idx+"_buttonRight");
if(o.live){removeLiveTimers(selector);} /* remove live timer */
_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,"mts"); /* delete callbacks object */
/* remove plugin markup */
mTS_buttons.remove(); /* remove buttons first (those can be either inside or outside plugin's inner wrapper) */
mTS_wrapper.replaceWith(d.html); /* 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+" "+pluginPfx+"-"+o.theme+" "+classes[2]+" "+classes[0]).addClass(classes[1]);
}
});
}
/* ---------------------------------------- */
},
/*
----------------------------------------
FUNCTIONS
----------------------------------------
*/
/* validates selector (if selector is invalid or undefined uses the default one) */
_selector=function(){
return (typeof $(this)!=="object" || $(this).length<1) ? defaultSelector : this;
},
/* -------------------- */
/* changes options according to theme */
_theme=function(obj){
var buttonsPlaceholderOutside=["buttons-out"],
buttonsHtmlSet2=["buttons-in"],
buttonsHtmlSet3=["buttons-out"],
typeHover85=["hover-classic"],
typeHoverPrecise=["hover-full"];
obj.markup.buttonsPlaceholder=$.inArray(obj.theme,buttonsPlaceholderOutside) > -1 ? "outside" : obj.markup.buttonsPlaceholder;
obj.markup.buttonsHTML=$.inArray(obj.theme,buttonsHtmlSet2) > -1 ? {up:"SVG set 2",down:"SVG set 2",left:"SVG set 2",right:"SVG set 2"} : $.inArray(obj.theme,buttonsHtmlSet3) > -1 ? {up:"SVG set 3",down:"SVG set 3",left:"SVG set 3",right:"SVG set 3"} : obj.markup.buttonsHTML;
obj.type=$.inArray(obj.theme,typeHover85) > -1 ? "hover-85" : $.inArray(obj.theme,typeHoverPrecise) > -1 ? "hover-precise" : obj.type;
obj.speed=$.inArray(obj.theme,typeHover85) > -1 ? 60 : $.inArray(obj.theme,typeHoverPrecise) > -1 ? 10 : obj.speed;
},
/* -------------------- */
/* live option timers removal */
removeLiveTimers=function(selector){
if(liveTimers[selector]){
clearTimeout(liveTimers[selector]);
_delete(liveTimers,selector);
}
},
/* -------------------- */
/* generates plugin markup */
_pluginMarkup=function(){
var $this=$(this),d=$this.data(pluginPfx),o=d.opt,
wrapperClass=o.axis==="yx" ? "mTS_vertical_horizontal" : o.axis==="x" ? "mTS_horizontal" : "mTS_vertical",
thumbsContainer=o.markup.thumbnailsContainer || "ul",
thumbContainer=o.markup.thumbnailContainer || "li",
thumbElement=o.markup.thumbnailElement || "img";
d.html=$this.children().clone(true,true); /* store element original html to restore when destroy method is called */
if(!$this.find(thumbsContainer).length){ /* create images container automatically if not present */
var thumbsAutoContainer=$this.find("li").length ? "
" : "";
$this.wrapInner(thumbsAutoContainer);
thumbsContainer="."+pluginPfx+"AutoContainer";
}
if(o.setWidth){$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+" "+pluginPfx+"-"+o.theme)
.find(thumbsContainer).wrap("")
.addClass(pluginPfx+"Container").attr("id","mTS_"+d.idx+"_container")
.css({"position":"relative","top":o.setTop,"left":o.setLeft})
.find(thumbContainer).addClass(pluginPfx+"ThumbContainer")
.find(thumbElement).addClass(pluginPfx+"Thumb");
_scrollButtons.call(this); /* add scroller buttons */
},
/* -------------------- */
/* expands content horizontally */
_expandContentHorizontally=function(){
var $this=$(this),d=$this.data(pluginPfx),o=d.opt,
mTS_container=$("#mTS_"+d.idx+"_container");
if(o.advanced.autoExpandHorizontalScroll && o.axis!=="y"){
/*
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.
*/
mTS_container.css({"position":"absolute","width":"auto"})
.wrap("")
.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(mTS_container[0].getBoundingClientRect().right)-Math.floor(mTS_container[0].getBoundingClientRect().left)),
"position":"relative"
}).unwrap();
}
},
/* -------------------- */
/* adds scroller buttons */
_scrollButtons=function(){
var $this=$(this),d=$this.data(pluginPfx),o=d.opt,
placeholder=!o.markup.buttonsPlaceholder ? $("#mTS_"+d.idx) : o.markup.buttonsPlaceholder==="outside" ? $this : $(o.markup.buttonsPlaceholder),
btnHTML=[
""+_scrollButtonsIcons.call(this,"up")+"",
""+_scrollButtonsIcons.call(this,"down")+"",
""+_scrollButtonsIcons.call(this,"left")+"",
""+_scrollButtonsIcons.call(this,"right")+""
],
btn=[(o.axis==="x" ? btnHTML[2] : btnHTML[0]),(o.axis==="x" ? btnHTML[3] : btnHTML[1])];
if(placeholder.hasClass(pluginNS) && placeholder.css("position")==="static"){ /* requires elements with non-static position */
placeholder.css("position","relative");
}
if(o.type.indexOf("click")!==-1){
if(o.axis!=="x"){
placeholder.append(btnHTML[0]+btnHTML[1]);
}
if(o.axis!=="y"){
placeholder.append(btnHTML[2]+btnHTML[3]);
}
}
},
/* -------------------- */
/* sets scroller buttons icons */
_scrollButtonsIcons=function(b){
var $this=$(this),d=$this.data(pluginPfx),o=d.opt,
btn=o.markup.buttonsHTML,
i=btn[b]==="SVG set 1" ? 0 : btn[b]==="SVG set 2" ? 1 : btn[b]==="SVG set 3" ? 2 : btn[b]==="SVG set 4" ? 3 : btn[b]==="SVG set 5" ? 4 : null;
switch(b){
case "up":
return i===null ? btn[b] : oldIE ? "↑" : _icons(btn[b])[i][0];
break;
case "down":
return i===null ? btn[b] : oldIE ? "↓" : _icons(btn[b])[i][1];
break;
case "left":
return i===null ? btn[b] : oldIE ? "←" : _icons(btn[b])[i][2];
break;
case "right":
return i===null ? btn[b] : oldIE ? "→" : _icons(btn[b])[i][3];
break;
}
},
/* -------------------- */
/* icons */
_icons=function(){
/* SVG */
var svgo="";
return [
/* set 1 */
[svgo+""+svgc,svgo+""+svgc,svgo+""+svgc,svgo+""+svgc],
/* set 2 */
[svgo+""+svgc,svgo+""+svgc,svgo+""+svgc,svgo+""+svgc],
/* set 3 */
[svgo+""+svgc,svgo+""+svgc,svgo+""+svgc,svgo+""+svgc],
/* set 4 */
[svgo+""+svgc,svgo+""+svgc,svgo+""+svgc,svgo+""+svgc],
/* set 5 */
[svgo+""+svgc,svgo+""+svgc,svgo+""+svgc,svgo+""+svgc]
];
},
/* -------------------- */
/* detects/sets css max-height value */
_maxHeight=function(){
var $this=$(this),d=$this.data(pluginPfx),o=d.opt,
mTS_wrapper=$("#mTS_"+d.idx),
mh=$this.css("max-height"),pct=mh.indexOf("%")!==-1,
bs=$this.css("box-sizing");
if(mh!=="none"){
var val=pct ? $this.parent().height()*parseInt(mh)/100 : parseInt(mh);
/* if element's css box-sizing is "border-box", subtract any paddings and/or borders from max-height value */
if(bs==="border-box"){val-=(($this.innerHeight()-$this.height())+($this.outerHeight()-$this.innerHeight()));}
mTS_wrapper.css("max-height",Math.round(val));
}
},
/* -------------------- */
/* checks if content overflows its container to determine if scrolling is required */
_overflowed=function(){
var $this=$(this),d=$this.data(pluginPfx),
mTS_wrapper=$("#mTS_"+d.idx),
mTS_container=$("#mTS_"+d.idx+"_container");
return [mTS_container.height()>mTS_wrapper.height(),mTS_container.width()>mTS_wrapper.width()];
},
/* -------------------- */
/* resets content position to 0 */
_resetContentPosition=function(){
var $this=$(this),d=$this.data(pluginPfx),o=d.opt,
mTS_wrapper=$("#mTS_"+d.idx),
mTS_container=$("#mTS_"+d.idx+"_container");
_stop($this); /* stop any current scrolling before resetting */
if((o.axis!=="x" && !d.overflowed[0]) || (o.axis==="y" && d.overflowed[0])){mTS_container.css("top",0);} /* reset y */
if((o.axis!=="y" && !d.overflowed[1]) || (o.axis==="x" && d.overflowed[1])){ /* reset x */
var rp=d.langDir==="rtl" ? mTS_wrapper.width()-mTS_container.width() : 0;
mTS_container.css("left",rp);
}
},
/* -------------------- */
/* binds scroller events */
_bindEvents=function(){
var $this=$(this),d=$this.data(pluginPfx),o=d.opt;
if(!d.bindEvents){ /* check if events are already bound */
if(o.contentTouchScroll){_contentDraggable.call(this);}
if(o.type.indexOf("hover")!==-1){
if(o.type==="hover-precise"){
_hoverPrecise.call(this);
}else{
_hover.call(this);
}
}else if(o.type.indexOf("click")!==-1){
_click.call(this);
}
d.bindEvents=true;
}
},
/* -------------------- */
/* unbinds scroller events */
_unbindEvents=function(){
var $this=$(this),d=$this.data(pluginPfx),
namespace=pluginPfx+"_"+d.idx,
sel=$("#mTS_"+d.idx+",#mTS_"+d.idx+"_container,#mTS_"+d.idx+"_buttonUp,#mTS_"+d.idx+"_buttonDown,#mTS_"+d.idx+"_buttonLeft,#mTS_"+d.idx+"_buttonRight"),
mTS_container=$("#mTS_"+d.idx+"_container");
if(d.bindEvents){ /* check if events are bound */
/* unbind namespaced events from selectors */
sel.each(function(){
$(this).unbind("."+namespace);
});
/* clear and delete timeouts/objects */
clearTimeout(mTS_container[0].onCompleteTimeout); _delete(mTS_container[0],"onCompleteTimeout");
d.bindEvents=false;
}
},
/* -------------------- */
/* toggles scroller buttons visibility */
_buttonsVisibility=function(disabled,hideBtn,dir){
var $this=$(this),d=$this.data(pluginPfx),o=d.opt;
if(o.type.indexOf("click")!==-1){
if(!dir){dir=o.axis;}
var mTS_buttons=[$("#mTS_"+d.idx+"_buttonUp"),$("#mTS_"+d.idx+"_buttonDown"),$("#mTS_"+d.idx+"_buttonLeft"),$("#mTS_"+d.idx+"_buttonRight")],
hideClass=pluginPfx+"-hidden";
if(dir!=="x"){
if(d.overflowed[0] && !disabled && !hideBtn){
sel=[!d.overflowed[1] ? mTS_buttons[2].add(mTS_buttons[3]) : null,mTS_buttons[0].add(mTS_buttons[1])];
}else{
sel=hideBtn===1 ? [mTS_buttons[0],mTS_buttons[1]] : hideBtn===2 ? [mTS_buttons[1],mTS_buttons[0]] : [mTS_buttons[0].add(mTS_buttons[1]),null];
}
}
if(dir!=="y"){
if(d.overflowed[1] && !disabled && !hideBtn){
sel=[!d.overflowed[0] ? mTS_buttons[0].add(mTS_buttons[1]) : null,mTS_buttons[2].add(mTS_buttons[3])];
}else{
sel=hideBtn===1 ? [mTS_buttons[2],mTS_buttons[3]] : hideBtn===2 ? [mTS_buttons[3],mTS_buttons[2]] : [mTS_buttons[2].add(mTS_buttons[3]),null];
}
}
if(sel[0]){sel[0].addClass(hideClass);}
if(sel[1]){sel[1].removeClass(hideClass);}
}
},
/* -------------------- */
/* returns input coordinates of pointer, touch and mouse events (relative to document) */
_coordinates=function(e){
var t=e.type;
switch(t){
case "pointerdown": case "MSPointerDown": case "pointermove": case "MSPointerMove": case "pointerup": case "MSPointerUp":
return [e.originalEvent.pageY,e.originalEvent.pageX];
break;
case "touchstart": case "touchmove": case "touchend":
var touch=e.originalEvent.touches[0] || e.originalEvent.changedTouches[0];
return [touch.pageY,touch.pageX];
break;
default:
return [e.pageY,e.pageX];
}
},
/* -------------------- */
/* returns input type */
_inputType=function(e){
return touchi || e.type.indexOf("touch")!==-1 || (typeof e.pointerType!=="undefined" && (e.pointerType===2 || e.pointerType==="touch")) ? "touch" : "mouse";
},
/* -------------------- */
/*
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=$this.data(pluginPfx),o=d.opt,
namespace=pluginPfx+"_"+d.idx,
mTS_wrapper=$("#mTS_"+d.idx),
mTS_container=$("#mTS_"+d.idx+"_container"),
dragY,dragX,touchStartY,touchStartX,touchMoveY=[],touchMoveX=[],startTime,runningTime,endTime,distance,speed,amount,
durA=0,durB,overwrite=o.axis==="yx" ? "none" : "all",touchIntent=[];
mTS_container.bind("touchstart."+namespace+" pointerdown."+namespace+" MSPointerDown."+namespace,function(e){
if(!_pointerTouch(e) || touchActive){return;}
$this.removeClass("mTS_touch_action");
var offset=mTS_container.offset();
dragY=_coordinates(e)[0]-offset.top;
dragX=_coordinates(e)[1]-offset.left;
touchIntent=[_coordinates(e)[0],_coordinates(e)[1]];
}).bind("touchmove."+namespace+" pointermove."+namespace+" MSPointerMove."+namespace,function(e){
if(!_pointerTouch(e) || touchActive){return;}
e.stopImmediatePropagation();
runningTime=_getTime();
var offset=mTS_wrapper.offset(),y=_coordinates(e)[0]-offset.top,x=_coordinates(e)[1]-offset.left,
easing="linearOut";
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=mTS_wrapper.height()-mTS_container.height(),
prevent=((dragY-y)>0 && (y-dragY)>limit && (touchIntent[3]*20 && (x-dragX)>limitX && (touchIntent[2]*230){return;}
speed=1000/(endTime-startTime);
var easing="easeOut",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(mTS_container[0].offsetTop)-(distance[0]*_m((absDistance[0]/speed[0]),speed[0])),
Math.abs(mTS_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.speed*60),(absDistance[1]*4)+(o.speed*60)];
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);}
if(d.overflowed[1]){_drag(amount[1],durB[1],easing,"x",overwrite);}
});
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){
if(!amount){return;}
_scrollTo($this,-amount.toString(),{dur:dur,easing:easing,dir:dir,overwrite:overwrite});
}
},
/* -------------------- */
/*
HOVER PRECISE EVENT
scrolls content via cursor movement
*/
_hoverPrecise=function(){
var $this=$(this),d=$this.data(pluginPfx),o=d.opt,
namespace=pluginPfx+"_"+d.idx,
mTS_wrapper=$("#mTS_"+d.idx),
mTS_container=$("#mTS_"+d.idx+"_container"),
evt=window.navigator.pointerEnabled ? "pointermove" : window.navigator.msPointerEnabled ? "MSPointerMove" : "mousemove",
cursor,dest,to;
mTS_wrapper.bind(evt+"."+namespace,function(e){
if(_inputType(e.originalEvent || e)==="touch" || (!d.overflowed[0] && !d.overflowed[1])){return;}
e.preventDefault();
var wrapperHeight=mTS_wrapper.height(),containerHeight=mTS_container.height(),
wrapperWidth=mTS_wrapper.width(),containerWidth=mTS_container.width(),
speed=((containerWidth/wrapperWidth)*7000)/(o.speed || 1);
cursor=[_coordinates(e)[0]-mTS_wrapper.offset().top,_coordinates(e)[1]-mTS_wrapper.offset().left];
dest=[cursor[0]/mTS_wrapper.height(),cursor[1]/mTS_wrapper.width()];
to=[Math.round(-((containerHeight-wrapperHeight)*(dest[0]))),Math.round(-((containerWidth-wrapperWidth)*(dest[1])))];
if(o.axis!=="x" && d.overflowed[0]){
_scrollTo($this,to[0].toString(),{dir:"y",dur:speed,easing:"easeOut"});
}
if(o.axis!=="y" && d.overflowed[1]){
_scrollTo($this,to[1].toString(),{dir:"x",dur:speed,easing:"easeOut"});
}
});
},
/* -------------------- */
/*
HOVER EVENT
scrolls content via cursor movement
*/
_hover=function(){
var $this=$(this),d=$this.data(pluginPfx),o=d.opt,
namespace=pluginPfx+"_"+d.idx,
mTS_wrapper=$("#mTS_"+d.idx),
mTS_container=$("#mTS_"+d.idx+"_container"),
evt=window.navigator.pointerEnabled ? ["pointerover","pointermove","pointerout"] :
window.navigator.msPointerEnabled ? ["MSPointerOver","MSPointerMove","MSPointerOut"] :
["mouseenter","mousemove","mouseleave"],
rAF,cursor,dest,to,fps,delay=(!window.requestAnimationFrame) ? 17 : 0,
speed=o.speed,pct=parseInt(o.type.split("hover-")[1]) || 1,idle=speed*pct/100,
_pause=[0,0];
mTS_wrapper.bind(evt[0]+"."+namespace,function(e){
if(_inputType(e.originalEvent || e)==="touch" || (!d.overflowed[0] && !d.overflowed[1])){return;}
_on();
}).bind(evt[1]+"."+namespace,function(e){
if(_inputType(e.originalEvent || e)==="touch" || (!d.overflowed[0] && !d.overflowed[1])){return;}
cursor=[_coordinates(e)[0]-mTS_wrapper.offset().top,_coordinates(e)[1]-mTS_wrapper.offset().left];
dest=[Math.round((Math.cos((cursor[0]/mTS_wrapper.height())*Math.PI))*speed),Math.round((Math.cos((cursor[1]/mTS_wrapper.width())*Math.PI))*speed)];
dest[0]=dest[0]<=-idle ? dest[0]+=idle : dest[0]>=idle ? dest[0]-=idle : dest[0]=0;
dest[1]=dest[1]<=-idle ? dest[1]+=idle : dest[1]>=idle ? dest[1]-=idle : dest[1]=0;
_pause=[0,0];
}).bind(evt[2]+"."+namespace,function(e){
if(_inputType(e.originalEvent || e)==="touch" || (!d.overflowed[0] && !d.overflowed[1])){return;}
_off();
});
function _on(){
if(mTS_wrapper[0].rAF){return;}
rAF=(!window.requestAnimationFrame) ? function(f){return setTimeout(f,17);} : window.requestAnimationFrame;
mTS_wrapper[0].rAF=rAF(_anim);
}
function _off(){
if(mTS_wrapper[0].rAF==null){return;}
if(!window.requestAnimationFrame){
clearTimeout(mTS_wrapper[0].rAF);
}else{
window.cancelAnimationFrame(mTS_wrapper[0].rAF);
}
clearTimeout(fps);
mTS_wrapper[0].rAF=null;
}
function _anim(){
if(touchi){return;} /* this is for android native browser (at least for version 4.1.2) */
to=[dest[0]+mTS_container[0].offsetTop,dest[1]+mTS_container[0].offsetLeft];
var limit=[mTS_wrapper.height()-mTS_container.height(),mTS_wrapper.width()-mTS_container.width()];
if(o.axis!=="x" && d.overflowed[0]){
to[0]=to[0]>0 ? 0 : to[0]=0 || to[0]<=limit[0]){
_pause[0]=1;
}
}
if(o.axis!=="y" && d.overflowed[1]){
to[1]=to[1]>0 ? 0 : to[1]=0 || to[1]<=limit[1]){
_pause[1]=1;
}
}
fps=setTimeout(function(){mTS_wrapper[0].rAF=rAF(_anim);},delay);
}
},
/* -------------------- */
/*
CLICK EVENT
scrolls content via scrolling buttons
*/
_click=function(){
var $this=$(this),d=$this.data(pluginPfx),o=d.opt,
namespace=pluginPfx+"_"+d.idx,
mTS_wrapper=$("#mTS_"+d.idx),
mTS_container=$("#mTS_"+d.idx+"_container"),
mTS_buttons=[$("#mTS_"+d.idx+"_buttonUp"),$("#mTS_"+d.idx+"_buttonDown"),$("#mTS_"+d.idx+"_buttonLeft"),$("#mTS_"+d.idx+"_buttonRight")],
sel=mTS_buttons[0].add(mTS_buttons[1]).add(mTS_buttons[2]).add(mTS_buttons[3]);
sel.bind("click."+namespace,function(e){
if(!_mouseBtnLeft(e) || (!d.overflowed[0] && !d.overflowed[1])){return;}
e.preventDefault();
if(d.tweenRunning){return;}
if(o.axis!=="x" && d.overflowed[0]){
var h=mTS_wrapper.height(),dir=o.type==="click-thumb" ? 0 : $(this).hasClass("mTSButtonUp") ? "+=" : $(this).hasClass("mTSButtonDown") ? "-=" : 0;
if(o.type!=="click-thumb"){
var pct=parseInt(o.type.split("click-")[1]) || 1,amount=dir ? [dir+(h*pct/100),null] : 0;
}else{
var firstThumb=_firstLast.call($this[0])[0],lastThumb=_firstLast.call($this[0])[1];
if($(this).hasClass("mTSButtonDown")){
var amount=lastThumb ? (lastThumb[0].offsetTop-parseInt(lastThumb.css("margin-bottom")))-h : 989999;
}else if($(this).hasClass("mTSButtonUp")){
var amount=firstThumb ? firstThumb[0].offsetTop-parseInt(firstThumb.css("margin-top")) : 0;
if(mTS_container[0].offsetTop===0){return;}
}
}
}
if(o.axis!=="y" && d.overflowed[1]){
var w=mTS_wrapper.width(),dir=o.type==="click-thumb" ? 0 : $(this).hasClass("mTSButtonLeft") ? "+=" : $(this).hasClass("mTSButtonRight") ? "-=" : 0;
if(o.type!=="click-thumb"){
var pct=parseInt(o.type.split("click-")[1]) || 1,amount=dir ? [null,dir+(w*pct/100)] : amount;
}else{
var firstThumb=_firstLast.call($this[0])[2],lastThumb=_firstLast.call($this[0])[3];
if($(this).hasClass("mTSButtonRight")){
var amount=lastThumb ? (lastThumb[0].offsetLeft-parseInt(lastThumb.css("margin-right")))-w : 989999;
}else if($(this).hasClass("mTSButtonLeft")){
var amount=firstThumb ? firstThumb[0].offsetLeft-parseInt(firstThumb.css("margin-left")) : 0;
if(mTS_container[0].offsetLeft===0){return;}
}
}
}
if(amount!==null){methods.scrollTo.call($this[0],amount,{duration:0});}
});
},
/* -------------------- */
/* returns the first and last items within the viewport */
_firstLast=function(){
var $this=$(this),d=$this.data(pluginPfx),o=d.opt,
mTS_container=$("#mTS_"+d.idx+"_container"),
mTS_wrapper=$("#mTS_"+d.idx),
mTS_item=mTS_container.find(".mTSThumbContainer"),
f,l,fx,lx;
mTS_item.each(function(){
var el=$(this),
pos=[
Math.round((el.offset().top-mTS_container.offset().top)+mTS_container[0].offsetTop),
Math.round((el.offset().left-mTS_container.offset().left)+mTS_container[0].offsetLeft)
];
if(pos[0]<=0-parseInt(el.css("margin-top"))){
f=pos[0]===0 ? mTS_item.eq(el.index()-1) : mTS_item.eq(el.index());
}else if(pos[0]<=mTS_wrapper.height()+parseInt(el.css("margin-bottom"))){
var i=mTS_item.eq(el.index()+1);
l=i.length ? i : null;
}
if(pos[1]<=0-parseInt(el.css("margin-left"))){
fx=pos[1]===0 ? mTS_item.eq(el.index()-1) : mTS_item.eq(el.index());
}else if(pos[1]<=mTS_wrapper.width()+parseInt(el.css("margin-right"))){
var ix=mTS_item.eq(el.index()+1);
lx=ix.length ? ix : null;
}
});
return [f,l,fx,lx];
},
/* -------------------- */
/* 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=$this.data(pluginPfx),o=d.opt,
mTS_wrapper=$("#mTS_"+d.idx),
mTS_container=$("#mTS_"+d.idx+"_container"),
t=typeof val;
if(!dir){dir=o.axis==="x" ? "x" : "y";}
var contentLength=dir==="x" ? mTS_container.width() : mTS_container.height(),
contentOffset=dir==="x" ? mTS_container.offset().left : mTS_container.offset().top,
contentPos=dir==="x" ? mTS_container[0].offsetLeft : mTS_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":
if(val.nodeType){ /* DOM */
var objOffset=dir==="x" ? $(val).offset().left : $(val).offset().top;
}else if(val.jquery){ /* jquery object */
if(!val.length){return;}
var objOffset=dir==="x" ? val.offset().left : val.offset().top;
}
return objOffset-contentOffset;
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(mTS_wrapper.height()-mTS_container.height());
}else if(val==="right"){
return Math.abs(mTS_wrapper.width()-mTS_container.width());
}else if(val==="first" || val==="last"){
var obj=mTS_container.find(":"+val),
objOffset=dir==="x" ? $(obj).offset().left : $(obj).offset().top;
return objOffset-contentOffset;
}else{
if($(val).length){ /* jquery selector */
var objOffset=dir==="x" ? $(val).offset().left : $(val).offset().top;
return objOffset-contentOffset;
}else{ /* other values (e.g. "100em") */
mTS_container.css(cssProp,val);
methods.update.call(null,$this[0]);
return;
}
}
}
break;
}
},
/* -------------------- */
/* calls the update method automatically */
_autoUpdate=function(rem){
var $this=$(this),d=$this.data(pluginPfx),o=d.opt,
mTS_wrapper=$("#mTS_"+d.idx),
mTS_container=$("#mTS_"+d.idx+"_container");
if(rem){
/*
removes autoUpdate timer
usage: functions._autoUpdate.call(this,"remove");
*/
clearTimeout(mTS_container[0].autoUpdate);
_delete(mTS_container[0],"autoUpdate");
return;
}
var oldSelSize=sizesSum(),newSelSize,
os=[mTS_container.height(),mTS_container.width(),mTS_wrapper.height(),mTS_wrapper.width(),$this.height(),$this.width()],ns,
oldImgsLen=imgSum(),newImgsLen;
upd();
function upd(){
clearTimeout(mTS_container[0].autoUpdate);
if($this.parents("html").length===0){
/* check element in dom tree */
$this=null;
return;
}
mTS_container[0].autoUpdate=setTimeout(function(){
/* update on specific selector(s) length and size change */
if(o.advanced.updateOnSelectorChange){
newSelSize=sizesSum();
if(newSelSize!==oldSelSize){
doUpd();
oldSelSize=newSelSize;
return;
}
}
/* update on main element and scroller size changes */
if(o.advanced.updateOnContentResize){
ns=[mTS_container.height(),mTS_container.width(),mTS_wrapper.height(),mTS_wrapper.width(),$this.height(),$this.width()];
if(ns[0]!==os[0] || ns[1]!==os[1] || ns[2]!==os[2] || ns[3]!==os[3] || ns[4]!==os[4] || ns[5]!==os[5]){
doUpd();
os=ns;
}
}
/* update on image load */
if(o.advanced.updateOnImageLoad){
newImgsLen=imgSum();
if(newImgsLen!==oldImgsLen){
mTS_container.find("img").each(function(){
imgLoader(this.src);
});
oldImgsLen=newImgsLen;
}
}
if(o.advanced.updateOnSelectorChange || o.advanced.updateOnContentResize || o.advanced.updateOnImageLoad){upd();}
},60);
}
/* returns images amount */
function imgSum(){
var total=0
if(o.advanced.updateOnImageLoad){total=mTS_container.find("img").length;}
return total;
}
/* a tiny image loader */
function imgLoader(src){
var img=new Image();
function createDelegate(contextObject,delegateMethod){
return function(){return delegateMethod.apply(contextObject,arguments);}
}
function imgOnLoad(){
this.onload=null;
doUpd();
}
img.onload=createDelegate(img,imgOnLoad);
img.src=src;
}
/* returns the total height and width sum of all elements matching the selector */
function sizesSum(){
if(o.advanced.updateOnSelectorChange===true){o.advanced.updateOnSelectorChange="*";}
var total=0,sel=mTS_container.find(o.advanced.updateOnSelectorChange);
if(o.advanced.updateOnSelectorChange && sel.length>0){sel.each(function(){total+=$(this).height()+$(this).width();});}
return total;
}
/* calls the update method */
function doUpd(){
clearTimeout(mTS_container[0].autoUpdate);
methods.update.call(null,$this[0]);
}
},
/* -------------------- */
/* stops content animations */
_stop=function(el){
var d=el.data(pluginPfx),
sel=$("#mTS_"+d.idx+"_container");
sel.each(function(){
_stopTween.call(this);
});
},
/* -------------------- */
/*
ANIMATES CONTENT
This is where the actual scrolling happens
*/
_scrollTo=function(el,to,options){
var d=el.data(pluginPfx),o=d.opt,
defaults={
trigger:"internal",
dir:"y",
easing:"easeOut",
dur:o.speed*60,
overwrite:"all",
callbacks:true,
onStart:true,
onUpdate:true,
onComplete:true
},
options=$.extend(defaults,options),
mTS_wrapper=$("#mTS_"+d.idx),
mTS_container=$("#mTS_"+d.idx+"_container"),
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(mTS_wrapper.scrollTop()!==0 || mTS_wrapper.scrollLeft()!==0){ /* always reset scrollTop/Left */
mTS_wrapper.scrollTop(0).scrollLeft(0);
}
switch(options.dir){
case "x":
var property="left",
contentPos=mTS_container[0].offsetLeft,
limit=mTS_wrapper.width()-mTS_container.width(),
scrollTo=to,
tso=totalScrollOffsets[1],
tsbo=totalScrollBackOffsets[1],
totalScrollOffset=tso>0 ? tso : 0,
totalScrollBackOffset=tsbo>0 ? tsbo : 0;
break;
case "y":
var property="top",
contentPos=mTS_container[0].offsetTop,
limit=mTS_wrapper.height()-mTS_container.height(),
scrollTo=to,
tso=totalScrollOffsets[0],
tsbo=totalScrollBackOffsets[0],
totalScrollOffset=tso>0 ? tso : 0,
totalScrollBackOffset=tsbo>0 ? tsbo : 0;
break;
}
if(scrollTo>=0){
scrollTo=0;
_buttonsVisibility.call(el,false,1,options.dir); /* show/hide buttons */
}else if(scrollTo<=limit){
scrollTo=limit;
_buttonsVisibility.call(el,false,2,options.dir); /* show/hide buttons */
}else{
scrollTo=scrollTo;
_buttonsVisibility.call(el,false,0,options.dir); /* show/hide buttons */
}
if(!el[0].mts){
_mts(); /* init mts object (once) to make it available before callbacks */
if(_cb("onInit")){o.callbacks.onInit.call(el[0]);} /* callbacks: onInit */
}
clearTimeout(mTS_container[0].onCompleteTimeout);
if(!d.tweenRunning && ((contentPos===0 && scrollTo>=0) || (contentPos===limit && scrollTo<=limit))){return;}
_tweenTo(mTS_container[0],property,Math.round(scrollTo),options.dur,options.easing,options.overwrite,{
onStart:function(){
if(options.callbacks && options.onStart && !d.tweenRunning){
/* callbacks: onScrollStart */
if(_cb("onScrollStart")){_mts(); o.callbacks.onScrollStart.call(el[0]);}
d.tweenRunning=true;
d.cbOffsets=_cbOffsets();
}
},onUpdate:function(){
if(options.callbacks && options.onUpdate){
/* callbacks: whileScrolling */
if(_cb("whileScrolling")){_mts(); o.callbacks.whileScrolling.call(el[0]);}
}
},onComplete:function(){
if(options.callbacks && options.onComplete){
if(o.axis==="yx"){clearTimeout(mTS_container[0].onCompleteTimeout);}
var t=mTS_container[0].idleTimer || 0;
mTS_container[0].onCompleteTimeout=setTimeout(function(){
/* callbacks: onScroll, onTotalScroll, onTotalScrollBack */
if(_cb("onScroll")){_mts(); o.callbacks.onScroll.call(el[0]);}
if(_cb("onTotalScroll") && scrollTo<=limit+totalScrollOffset && d.cbOffsets[0]){_mts(); o.callbacks.onTotalScroll.call(el[0]);}
if(_cb("onTotalScrollBack") && scrollTo>=-totalScrollBackOffset && d.cbOffsets[1]){_mts(); o.callbacks.onTotalScrollBack.call(el[0]);}
d.tweenRunning=false;
mTS_container[0].idleTimer=0;
},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+tso,o.callbacks.alwaysTriggerOffsets || contentPos<=-tsbo];
}
/*
populates object with useful values for the user
values:
content: this.mts.content
content top position: this.mts.top
content left position: this.mts.left
scrolling y percentage: this.mts.topPct
scrolling x percentage: this.mts.leftPct
scrolling direction: this.mts.direction
*/
function _mts(){
var cp=[mTS_container[0].offsetTop,mTS_container[0].offsetLeft], /* content position */
cl=[mTS_container.height(),mTS_container.width()], /* content length */
pl=[mTS_wrapper.height(),mTS_wrapper.width()]; /* content parent length */
el[0].mts={
content:mTS_container, /* original content wrapper as jquery object */
top:cp[0],left:cp[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 scroller
usage: this.mts.top, this.mts.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.time0){
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":
return c*t/d + b;
break;
case "linearOut":
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":
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": 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