//MooTools More, <http://mootools.net/more>. Copyright (c) 2006-2009 Aaron Newton <http://clientcide.com/>, Valerio Proietti <http://mad4milk.net> & the MooTools team <http://mootools.net/developers>, MIT Style License.

/* This MORE contains :
- Drag
- Drag.Move
- Scroller
- Tips
*/


MooTools.More={version:"1.2.3.1"};var Drag=new Class({Implements:[Events,Options],options:{snap:6,unit:"px",grid:false,style:true,limit:false,handle:false,invert:false,preventDefault: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(this.options.preventDefault){c.preventDefault();}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]<this.limit[b][0])){this.value.now[b]=this.limit[b][0];
}}}if(this.options.grid[b]){this.value.now[b]-=((this.value.now[b]-(this.limit[b][0]||0))%this.options.grid[b]);}if(this.options.style){this.element.setStyle(this.options.modifiers[b],this.value.now[b]+this.options.unit);
}else{this.element[this.options.modifiers[b]]=this.value.now[b];}}this.fireEvent("drag",[this.element,a]);},cancel:function(a){this.document.removeEvent("mousemove",this.bound.check);
this.document.removeEvent("mouseup",this.bound.cancel);if(a){this.document.removeEvent(this.selection,this.bound.eventStop);this.fireEvent("cancel",this.element);
}},stop:function(a){this.document.removeEvent(this.selection,this.bound.eventStop);this.document.removeEvent("mousemove",this.bound.drag);this.document.removeEvent("mouseup",this.bound.stop);
if(a){this.fireEvent("complete",[this.element,a]);}}});Element.implement({makeResizable:function(a){var b=new Drag(this,$merge({modifiers:{x:"width",y:"height"}},a));
this.store("resizer",b);return b.addEvent("drag",function(){this.fireEvent("resize",b);}.bind(this));}});Drag.Move=new Class({Extends:Drag,options:{droppables:[],container:false,precalculate:false,includeMargins:true,checkDroppables:true},initialize:function(c,b){this.parent(c,b);
this.droppables=$$(this.options.droppables);this.container=document.id(this.options.container);if(this.container&&$type(this.container)!="element"){this.container=document.id(this.container.getDocument().body);
}var a=this.element.getStyle("position");if(a=="static"){a="absolute";}if([this.element.getStyle("left"),this.element.getStyle("top")].contains("auto")){this.element.position(this.element.getPosition(this.element.offsetParent));
}this.element.setStyle("position",a);this.addEvent("start",this.checkDroppables,true);this.overed=null;},start:function(f){if(this.container){var b=this.container.getCoordinates(this.element.getOffsetParent()),c={},e={};
["top","right","bottom","left"].each(function(g){c[g]=this.container.getStyle("border-"+g).toInt();e[g]=this.element.getStyle("margin-"+g).toInt();},this);
var d=this.element.offsetWidth+e.left+e.right;var a=this.element.offsetHeight+e.top+e.bottom;if(this.options.includeMargins){$each(e,function(h,g){e[g]=0;
});}if(this.container==this.element.getOffsetParent()){this.options.limit={x:[0-e.left,b.right-c.left-c.right-d+e.right],y:[0-e.top,b.bottom-c.top-c.bottom-a+e.bottom]};
}else{this.options.limit={x:[b.left+c.left-e.left,b.right-c.right-d+e.right],y:[b.top+c.top-e.top,b.bottom-c.bottom-a+e.bottom]};}}if(this.options.precalculate){this.positions=this.droppables.map(function(g){return g.getCoordinates();
});}this.parent(f);},checkAgainst:function(c,b){c=(this.positions)?this.positions[b]:c.getCoordinates();var a=this.mouse.now;return(a.x>c.left&&a.x<c.right&&a.y<c.bottom&&a.y>c.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;}});var Scroller=new Class({Implements:[Events,Options],options:{area:20,velocity:1,onChange:function(a,b){this.element.scrollTo(a,b);
},fps:50},initialize:function(b,a){this.setOptions(a);this.element=document.id(b);this.listener=($type(this.element)!="element")?document.id(this.element.getDocument().body):this.element;
this.timer=null;this.bound={attach:this.attach.bind(this),detach:this.detach.bind(this),getCoords:this.getCoords.bind(this)};},start:function(){this.listener.addEvents({mouseenter:this.bound.attach,mouseleave:this.bound.detach});
},stop:function(){this.listener.removeEvents({mouseenter:this.bound.attach,mouseleave:this.bound.detach});this.timer=$clear(this.timer);},attach:function(){this.listener.addEvent("mousemove",this.bound.getCoords);
},detach:function(){this.listener.removeEvent("mousemove",this.bound.getCoords);this.timer=$clear(this.timer);},getCoords:function(a){this.page=(this.listener.get("tag")=="body")?a.client:a.page;
if(!this.timer){this.timer=this.scroll.periodical(Math.round(1000/this.options.fps),this);}},scroll:function(){var b=this.element.getSize(),a=this.element.getScroll(),f=this.element.getOffsets(),c=this.element.getScrollSize(),e={x:0,y:0};
for(var d in this.page){if(this.page[d]<(this.options.area+f[d])&&a[d]!=0){e[d]=(this.page[d]-this.options.area-f[d])*this.options.velocity;}else{if(this.page[d]+this.options.area>(b[d]+f[d])&&a[d]+b[d]!=c[d]){e[d]=(this.page[d]-b[d]+this.options.area-f[d])*this.options.velocity;
}}}if(e.y||e.x){this.fireEvent("change",[a.x+e.x,a.y+e.y]);}}});var Tips=new Class({Implements:[Events,Options],options:{onShow:function(a){a.setStyle("visibility","visible");
},onHide:function(a){a.setStyle("visibility","hidden");},title:"title",text:function(a){return a.get("rel")||a.get("href");},showDelay:100,hideDelay:100,className:null,offset:{x:16,y:16},fixed:false},initialize:function(){var a=Array.link(arguments,{options:Object.type,elements:$defined});
if(a.options&&a.options.offsets){a.options.offset=a.options.offsets;}this.setOptions(a.options);this.container=new Element("div",{"class":"tip"});this.tip=this.getTip();
if(a.elements){this.attach(a.elements);}},getTip:function(){return new Element("div",{"class":this.options.className,styles:{visibility:"hidden",display:"none",position:"absolute",top:0,left:0}}).adopt(new Element("div",{"class":"tip-top"}),this.container,new Element("div",{"class":"tip-bottom"})).inject(document.body);
},attach:function(b){var a=function(d,c){if(d==null){return"";}return $type(d)=="function"?d(c):c.get(d);};$$(b).each(function(d){var e=a(this.options.title,d);
d.erase("title").store("tip:native",e).retrieve("tip:title",e);d.retrieve("tip:text",a(this.options.text,d));var c=["enter","leave"];if(!this.options.fixed){c.push("move");
}c.each(function(f){d.addEvent("mouse"+f,d.retrieve("tip:"+f,this["element"+f.capitalize()].bindWithEvent(this,d)));},this);},this);return this;},detach:function(a){$$(a).each(function(c){["enter","leave","move"].each(function(d){c.removeEvent("mouse"+d,c.retrieve("tip:"+d)||$empty);
});c.eliminate("tip:enter").eliminate("tip:leave").eliminate("tip:move");if($type(this.options.title)=="string"&&this.options.title=="title"){var b=c.retrieve("tip:native");
if(b){c.set("title",b);}}},this);return this;},elementEnter:function(b,a){$A(this.container.childNodes).each(Element.dispose);["title","text"].each(function(d){var c=a.retrieve("tip:"+d);
if(!c){return;}this[d+"Element"]=new Element("div",{"class":"tip-"+d}).inject(this.container);this.fill(this[d+"Element"],c);},this);this.timer=$clear(this.timer);
this.timer=this.show.delay(this.options.showDelay,this,a);this.tip.setStyle("display","block");this.position((!this.options.fixed)?b:{page:a.getPosition()});
},elementLeave:function(b,a){$clear(this.timer);this.tip.setStyle("display","none");this.timer=this.hide.delay(this.options.hideDelay,this,a);},elementMove:function(a){this.position(a);
},position:function(d){var b=window.getSize(),a=window.getScroll(),e={x:this.tip.offsetWidth,y:this.tip.offsetHeight},c={x:"left",y:"top"},f={};for(var g in c){f[c[g]]=d.page[g]+this.options.offset[g];
if((f[c[g]]+e[g]-a[g])>b[g]){f[c[g]]=d.page[g]-this.options.offset[g]-e[g];}}this.tip.setStyles(f);},fill:function(a,b){if(typeof b=="string"){a.set("html",b);
}else{a.adopt(b);}},show:function(a){this.fireEvent("show",[this.tip,a]);},hide:function(a){this.fireEvent("hide",[this.tip,a]);}});