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/home/develito/www/plugins/system/popup_anywhere/toggle/js/touch.js
/*= name: Touch version: 0.1 description: Simple drag implementation that works with standard-sized browsers and hooks with mobile safari touch events. license: MooTools MIT-Style License (http://mootools.net/license.txt) copyright: Valerio Proietti (http://mad4milk.net) authors: Valerio Proietti (http://mad4milk.net) requires: MooTools 1.2.3+ (Core) (http://mootools.net/download) modified: Requires MooTools 1.11 (Djamil Legato) =*/ var Touch=new Class({initialize:function(a){this.element=$(a);this.bound={start:this.start.bind(this),move:this.move.bind(this),end:this.end.bind(this)};if(window.orientation!=undefined){this.context=this.element;this.startEvent="touchstart";this.endEvent="touchend";this.moveEvent="touchmove";}else{this.context=document;this.startEvent="mousedown";this.endEvent="mouseup";this.moveEvent="mousemove";}this.attach();},attach:function(){this.element.addListener(this.startEvent,this.bound.start);},detach:function(){this.element.removeListener(this.startEvent,this.bound.start);},start:function(a){this.preventDefault(a);document.body.style.WebkitUserSelect="none";this.hasDragged=false;this.context.addListener(this.moveEvent,this.bound.move);this.context.addListener(this.endEvent,this.bound.end);var b=this.getPage(a);this.startX=b.pageX;this.startY=b.pageY;this.fireEvent("start");},move:function(a){this.preventDefault(a);this.hasDragged=true;var b=this.getPage(a);this.deltaX=b.pageX-this.startX;this.deltaY=b.pageY-this.startY;this.fireEvent("move",[this.deltaX,this.deltaY]);},end:function(a){this.preventDefault(a);document.body.style.WebkitUserSelect="";this.context.removeListener(this.moveEvent,this.bound.move);this.context.removeListener(this.endEvent,this.bound.end);this.fireEvent((this.hasDragged)?"end":"cancel");},preventDefault:function(a){if(a.preventDefault){a.preventDefault();}else{a.returnValue=false;}},getPage:function(b){if(b.targetTouches){b=b.targetTouches[0];}if(b.pageX!=null&&b.pageY!=null){return{pageX:b.pageX,pageY:b.pageY};}var a=(!document.compatMode||document.compatMode=="CSS1Compat")?document.documentElement:document.body;return{pageX:b.clientX+a.scrollLeft,pageY:b.clientY+a.scrollTop};}});Touch.implement(new Events);
