//MooTools More, . Copyright (c) 2006-2009 Aaron Newton , Valerio Proietti & the MooTools team , MIT Style License. MooTools.More={version:"1.2.4.4",build:"6f6057dc645fdb7547689183b2311063bd653ddf"};var Drag=new Class({Implements:[Events,Options],options:{snap:6,unit:"px",grid:false,style:true,limit:false,handle:false,invert:false,preventDefault:false,stopPropagation:false,modifiers:{x:"left",y:"top"}},initialize:function(){var b=Array.link(arguments,{options:Object.type,element:$defined}); this.element=document.id(b.element);this.document=this.element.getDocument();this.setOptions(b.options||{});var a=$type(this.options.handle);this.handles=((a=="array"||a=="collection")?$$(this.options.handle):document.id(this.options.handle))||this.element; this.mouse={now:{},pos:{}};this.value={start:{},now:{}};this.selection=(Browser.Engine.trident)?"selectstart":"mousedown";this.bound={start:this.start.bind(this),check:this.check.bind(this),drag:this.drag.bind(this),stop:this.stop.bind(this),cancel:this.cancel.bind(this),eventStop:$lambda(false)}; this.attach();},attach:function(){this.handles.addEvent("mousedown",this.bound.start);return this;},detach:function(){this.handles.removeEvent("mousedown",this.bound.start); return this;},start:function(c){if(c.rightClick){return;}if(this.options.preventDefault){c.preventDefault();}if(this.options.stopPropagation){c.stopPropagation(); }this.mouse.start=c.page;this.fireEvent("beforeStart",this.element);var a=this.options.limit;this.limit={x:[],y:[]};for(var d in this.options.modifiers){if(!this.options.modifiers[d]){continue; }if(this.options.style){this.value.now[d]=this.element.getStyle(this.options.modifiers[d]).toInt();}else{this.value.now[d]=this.element[this.options.modifiers[d]]; }if(this.options.invert){this.value.now[d]*=-1;}this.mouse.pos[d]=c.page[d]-this.value.now[d];if(a&&a[d]){for(var b=2;b--;b){if($chk(a[d][b])){this.limit[d][b]=$lambda(a[d][b])(); }}}}if($type(this.options.grid)=="number"){this.options.grid={x:this.options.grid,y:this.options.grid};}this.document.addEvents({mousemove:this.bound.check,mouseup:this.bound.cancel}); this.document.addEvent(this.selection,this.bound.eventStop);},check:function(a){if(this.options.preventDefault){a.preventDefault();}var b=Math.round(Math.sqrt(Math.pow(a.page.x-this.mouse.start.x,2)+Math.pow(a.page.y-this.mouse.start.y,2))); if(b>this.options.snap){this.cancel();this.document.addEvents({mousemove:this.bound.drag,mouseup:this.bound.stop});this.fireEvent("start",[this.element,a]).fireEvent("snap",this.element); }},drag:function(a){if(this.options.preventDefault){a.preventDefault();}this.mouse.now=a.page;for(var b in this.options.modifiers){if(!this.options.modifiers[b]){continue; }this.value.now[b]=this.mouse.now[b]-this.mouse.pos[b];if(this.options.invert){this.value.now[b]*=-1;}if(this.options.limit&&this.limit[b]){if($chk(this.limit[b][1])&&(this.value.now[b]>this.limit[b][1])){this.value.now[b]=this.limit[b][1]; }else{if($chk(this.limit[b][0])&&(this.value.now[b]c.left&&a.xc.top);},checkDroppables:function(){var a=this.droppables.filter(this.checkAgainst,this).getLast(); if(this.overed!=a){if(this.overed){this.fireEvent("leave",[this.element,this.overed]);}if(a){this.fireEvent("enter",[this.element,a]);}this.overed=a;}},drag:function(a){this.parent(a); if(this.options.checkDroppables&&this.droppables.length){this.checkDroppables();}},stop:function(a){this.checkDroppables();this.fireEvent("drop",[this.element,this.overed,a]); this.overed=null;return this.parent(a);}});Element.implement({makeDraggable:function(a){var b=new Drag.Move(this,a);this.store("dragger",b);return b;}});