snap.min.js

/*
 * Snap.js
 *
 * Copyright 2013, Jacob Kelley - http://jakiestfu.com/
 * Released under the MIT Licence
 * http://opensource.org/licenses/MIT
 *
 * Github:  http://github.com/jakiestfu/Snap.js/
 * Version: 1.9.0
 */
(function(c,b){var a=a||function(k){var f={element:null,dragger:null,disable:"none",addBodyClasses:true,hyperextensible:true,resistance:0.5,flickThreshold:50,transitionSpeed:0.3,easing:"ease",maxPosition:266,minPosition:-266,tapToClose:true,touchToDrag:true,slideIntent:40,minDragDistance:5},e={simpleStates:{opening:null,towards:null,hyperExtending:null,halfway:null,flick:null,translation:{absolute:0,relative:0,sinceDirectionChange:0,percentage:0}}},h={},d={hasTouch:(b.ontouchstart===null),eventType:function(m){var l={down:(d.hasTouch?"touchstart":"mousedown"),move:(d.hasTouch?"touchmove":"mousemove"),up:(d.hasTouch?"touchend":"mouseup"),out:(d.hasTouch?"touchcancel":"mouseout")};return l[m]},page:function(l,m){return(d.hasTouch&&m.touches.length&&m.touches[0])?m.touches[0]["page"+l]:m["page"+l]},klass:{has:function(m,l){return(m.className).indexOf(l)!==-1},add:function(m,l){if(!d.klass.has(m,l)&&f.addBodyClasses){m.className+=" "+l}},remove:function(m,l){if(f.addBodyClasses){m.className=(m.className).replace(" "+l,"")}}},dispatchEvent:function(l){if(typeof h[l]==="function"){return h[l].call()}},vendor:function(){var m=b.createElement("div"),n="webkit Moz O ms".split(" "),l;for(l in n){if(typeof m.style[n[l]+"Transition"]!=="undefined"){return n[l]}}},transitionCallback:function(){return(e.vendor==="Moz"||e.vendor==="ms")?"transitionend":e.vendor+"TransitionEnd"},canTransform:function(){return typeof f.element.style[e.vendor+"Transform"]!=="undefined"},deepExtend:function(l,n){var m;for(m in n){if(n[m]&&n[m].constructor&&n[m].constructor===Object){l[m]=l[m]||{};d.deepExtend(l[m],n[m])}else{l[m]=n[m]}}return l},angleOfDrag:function(l,o){var n,m;m=Math.atan2(-(e.startDragY-o),(e.startDragX-l));if(m<0){m+=2*Math.PI}n=Math.floor(m*(180/Math.PI)-180);if(n<0&&n>-180){n=360-Math.abs(n)}return Math.abs(n)},events:{addEvent:function g(m,l,n){if(m.addEventListener){return m.addEventListener(l,n,false)}else{if(m.attachEvent){return m.attachEvent("on"+l,n)}}},removeEvent:function g(m,l,n){if(m.addEventListener){return m.removeEventListener(l,n,false)}else{if(m.attachEvent){return m.detachEvent("on"+l,n)}}},prevent:function(l){if(l.preventDefault){l.preventDefault()}else{l.returnValue=false}}},parentUntil:function(n,l){var m=typeof l==="string";while(n.parentNode){if(m&&n.getAttribute&&n.getAttribute(l)){return n}else{if(!m&&n===l){return n}}n=n.parentNode}return null}},i={translate:{get:{matrix:function(n){if(!d.canTransform()){return parseInt(f.element.style.left,10)}else{var m=c.getComputedStyle(f.element)[e.vendor+"Transform"].match(/\((.*)\)/),l=8;if(m){m=m[1].split(",");if(m.length===16){n+=l}return parseInt(m[n],10)}return 0}}},easeCallback:function(){f.element.style[e.vendor+"Transition"]="";e.translation=i.translate.get.matrix(4);e.easing=false;clearInterval(e.animatingInterval);if(e.easingTo===0){d.klass.remove(b.body,"snapjs-right");d.klass.remove(b.body,"snapjs-left")}d.dispatchEvent("animated");d.events.removeEvent(f.element,d.transitionCallback(),i.translate.easeCallback)},easeTo:function(l){if(!d.canTransform()){e.translation=l;i.translate.x(l)}else{e.easing=true;e.easingTo=l;f.element.style[e.vendor+"Transition"]="all "+f.transitionSpeed+"s "+f.easing;e.animatingInterval=setInterval(function(){d.dispatchEvent("animating")},1);d.events.addEvent(f.element,d.transitionCallback(),i.translate.easeCallback);i.translate.x(l)}if(l===0){f.element.style[e.vendor+"Transform"]=""}},x:function(m){if((f.disable==="left"&&m>0)||(f.disable==="right"&&m<0)){return}if(!f.hyperextensible){if(m===f.maxPosition||m>f.maxPosition){m=f.maxPosition}else{if(m===f.minPosition||m<f.minPosition){m=f.minPosition}}}m=parseInt(m,10);if(isNaN(m)){m=0}if(d.canTransform()){var l="translate3d("+m+"px, 0,0)";f.element.style[e.vendor+"Transform"]=l}else{f.element.style.width=(c.innerWidth||b.documentElement.clientWidth)+"px";f.element.style.left=m+"px";f.element.style.right=""}}},drag:{listen:function(){e.translation=0;e.easing=false;d.events.addEvent(f.element,d.eventType("down"),i.drag.startDrag);d.events.addEvent(f.element,d.eventType("move"),i.drag.dragging);d.events.addEvent(f.element,d.eventType("up"),i.drag.endDrag)},stopListening:function(){d.events.removeEvent(f.element,d.eventType("down"),i.drag.startDrag);d.events.removeEvent(f.element,d.eventType("move"),i.drag.dragging);d.events.removeEvent(f.element,d.eventType("up"),i.drag.endDrag)},startDrag:function(n){var m=n.target?n.target:n.srcElement,l=d.parentUntil(m,"data-snap-ignore");if(l){d.dispatchEvent("ignore");return}if(f.dragger){var o=d.parentUntil(m,f.dragger);if(!o&&(e.translation!==f.minPosition&&e.translation!==f.maxPosition)){return}}d.dispatchEvent("start");f.element.style[e.vendor+"Transition"]="";e.isDragging=true;e.hasIntent=null;e.intentChecked=false;e.startDragX=d.page("X",n);e.startDragY=d.page("Y",n);e.dragWatchers={current:0,last:0,hold:0,state:""};e.simpleStates={opening:null,towards:null,hyperExtending:null,halfway:null,flick:null,translation:{absolute:0,relative:0,sinceDirectionChange:0,percentage:0}}},dragging:function(s){if(e.isDragging&&f.touchToDrag){var v=d.page("X",s),u=d.page("Y",s),t=e.translation,o=i.translate.get.matrix(4),n=v-e.startDragX,p=o>0,q=n,w;if((e.intentChecked&&!e.hasIntent)){return}if(f.addBodyClasses){if((o)>0){d.klass.add(b.body,"snapjs-left");d.klass.remove(b.body,"snapjs-right")}else{if((o)<0){d.klass.add(b.body,"snapjs-right");d.klass.remove(b.body,"snapjs-left")}}}if(e.hasIntent===false||e.hasIntent===null){var m=d.angleOfDrag(v,u),l=(m>=0&&m<=f.slideIntent)||(m<=360&&m>(360-f.slideIntent)),r=(m>=180&&m<=(180+f.slideIntent))||(m<=180&&m>=(180-f.slideIntent));if(!r&&!l){e.hasIntent=false}else{e.hasIntent=true}e.intentChecked=true}if((f.minDragDistance>=Math.abs(v-e.startDragX))&&(e.hasIntent===false)){return}d.events.prevent(s);d.dispatchEvent("drag");e.dragWatchers.current=v;if(e.dragWatchers.last>v){if(e.dragWatchers.state!=="left"){e.dragWatchers.state="left";e.dragWatchers.hold=v}e.dragWatchers.last=v}else{if(e.dragWatchers.last<v){if(e.dragWatchers.state!=="right"){e.dragWatchers.state="right";e.dragWatchers.hold=v}e.dragWatchers.last=v}}if(p){if(f.maxPosition<o){w=(o-f.maxPosition)*f.resistance;q=n-w}e.simpleStates={opening:"left",towards:e.dragWatchers.state,hyperExtending:f.maxPosition<o,halfway:o>(f.maxPosition/2),flick:Math.abs(e.dragWatchers.current-e.dragWatchers.hold)>f.flickThreshold,translation:{absolute:o,relative:n,sinceDirectionChange:(e.dragWatchers.current-e.dragWatchers.hold),percentage:(o/f.maxPosition)*100}}}else{if(f.minPosition>o){w=(o-f.minPosition)*f.resistance;q=n-w}e.simpleStates={opening:"right",towards:e.dragWatchers.state,hyperExtending:f.minPosition>o,halfway:o<(f.minPosition/2),flick:Math.abs(e.dragWatchers.current-e.dragWatchers.hold)>f.flickThreshold,translation:{absolute:o,relative:n,sinceDirectionChange:(e.dragWatchers.current-e.dragWatchers.hold),percentage:(o/f.minPosition)*100}}}i.translate.x(q+t)}},endDrag:function(m){if(e.isDragging){d.dispatchEvent("end");var l=i.translate.get.matrix(4);if(e.dragWatchers.current===0&&l!==0&&f.tapToClose){d.events.prevent(m);i.translate.easeTo(0);e.isDragging=false;e.startDragX=0;return}if(e.simpleStates.opening==="left"){if((e.simpleStates.halfway||e.simpleStates.hyperExtending||e.simpleStates.flick)){if(e.simpleStates.flick&&e.simpleStates.towards==="left"){i.translate.easeTo(0)}else{if((e.simpleStates.flick&&e.simpleStates.towards==="right")||(e.simpleStates.halfway||e.simpleStates.hyperExtending)){i.translate.easeTo(f.maxPosition)}}}else{i.translate.easeTo(0)}}else{if(e.simpleStates.opening==="right"){if((e.simpleStates.halfway||e.simpleStates.hyperExtending||e.simpleStates.flick)){if(e.simpleStates.flick&&e.simpleStates.towards==="right"){i.translate.easeTo(0)}else{if((e.simpleStates.flick&&e.simpleStates.towards==="left")||(e.simpleStates.halfway||e.simpleStates.hyperExtending)){i.translate.easeTo(f.minPosition)}}}else{i.translate.easeTo(0)}}}e.isDragging=false;e.startDragX=d.page("X",m)}}}},j=function(l){if(l.element){d.deepExtend(f,l);e.vendor=d.vendor();i.drag.listen()}};this.open=function(l){d.klass.remove(b.body,"snapjs-expand-left");d.klass.remove(b.body,"snapjs-expand-right");if(l==="left"){e.simpleStates.opening="left";e.simpleStates.towards="right";d.klass.add(b.body,"snapjs-left");d.klass.remove(b.body,"snapjs-right");i.translate.easeTo(f.maxPosition)}else{if(l==="right"){e.simpleStates.opening="right";e.simpleStates.towards="left";d.klass.remove(b.body,"snapjs-left");d.klass.add(b.body,"snapjs-right");i.translate.easeTo(f.minPosition)}}};this.close=function(){i.translate.easeTo(0)};this.expand=function(l){var m=c.innerWidth||b.documentElement.clientWidth;if(l==="left"){d.klass.add(b.body,"snapjs-expand-left");d.klass.remove(b.body,"snapjs-expand-right")}else{d.klass.add(b.body,"snapjs-expand-right");d.klass.remove(b.body,"snapjs-expand-left");m*=-1}i.translate.easeTo(m)};this.on=function(l,m){h[l]=m;return this};this.off=function(l){if(h[l]){h[l]=false}};this.enable=function(){i.drag.listen()};this.disable=function(){i.drag.stopListening()};this.settings=function(l){d.deepExtend(f,l)};this.state=function(){var l,m=i.translate.get.matrix(4);if(m===f.maxPosition){l="left"}else{if(m===f.minPosition){l="right"}else{l="closed"}}return{state:l,info:e.simpleStates}};j(k)};if((typeof module!=="undefined")&&module.exports){module.exports=a}if(typeof ender==="undefined"){this.Snap=a}if((typeof define==="function")&&define.amd){define("snap",[],function(){return a})}}).call(this,window,document);