// MooTools: the javascript framework.
// Load this file's selection again by visiting: http://mootools.net/more/f5a4ab2b1bf55af41257d7e7dc1c444a 
// Or build this file again with packager using: packager build More/Fx.Scroll More/Assets
/*
---
copyrights:
  - [MooTools](http://mootools.net)

licenses:
  - [MIT License](http://mootools.net/license.txt)
...
*/
MooTools.More={version:"1.3.2.1",build:"e586bcd2496e9b22acfde32e12f84d49ce09e59d"};(function(){Fx.Scroll=new Class({Extends:Fx,options:{offset:{x:0,y:0},wheelStops:true},initialize:function(c,b){this.element=this.subject=document.id(c);
this.parent(b);if(typeOf(this.element)!="element"){this.element=document.id(this.element.getDocument().body);}if(this.options.wheelStops){var d=this.element,e=this.cancel.pass(false,this);
this.addEvent("start",function(){d.addEvent("mousewheel",e);},true);this.addEvent("complete",function(){d.removeEvent("mousewheel",e);},true);}},set:function(){var b=Array.flatten(arguments);
if(Browser.firefox){b=[Math.round(b[0]),Math.round(b[1])];}this.element.scrollTo(b[0],b[1]);return this;},compute:function(d,c,b){return[0,1].map(function(e){return Fx.compute(d[e],c[e],b);
});},start:function(c,d){if(!this.check(c,d)){return this;}var b=this.element.getScroll();return this.parent([b.x,b.y],[c,d]);},calculateScroll:function(g,f){var d=this.element,b=d.getScrollSize(),h=d.getScroll(),j=d.getSize(),c=this.options.offset,i={x:g,y:f};
for(var e in i){if(!i[e]&&i[e]!==0){i[e]=h[e];}if(typeOf(i[e])!="number"){i[e]=b[e]-j[e];}i[e]+=c[e];}return[i.x,i.y];},toTop:function(){return this.start.apply(this,this.calculateScroll(false,0));
},toLeft:function(){return this.start.apply(this,this.calculateScroll(0,false));},toRight:function(){return this.start.apply(this,this.calculateScroll("right",false));
},toBottom:function(){return this.start.apply(this,this.calculateScroll(false,"bottom"));},toElement:function(d,e){e=e?Array.from(e):["x","y"];var c=a(this.element)?{x:0,y:0}:this.element.getScroll();
var b=Object.map(document.id(d).getPosition(this.element),function(g,f){return e.contains(f)?g+c[f]:false;});return this.start.apply(this,this.calculateScroll(b.x,b.y));
},toElementEdge:function(d,g,e){g=g?Array.from(g):["x","y"];d=document.id(d);var i={},f=d.getPosition(this.element),j=d.getSize(),h=this.element.getScroll(),b=this.element.getSize(),c={x:f.x+j.x,y:f.y+j.y};
["x","y"].each(function(k){if(g.contains(k)){if(c[k]>h[k]+b[k]){i[k]=c[k]-b[k];}if(f[k]<h[k]){i[k]=f[k];}}if(i[k]==null){i[k]=h[k];}if(e&&e[k]){i[k]=i[k]+e[k];
}},this);if(i.x!=h.x||i.y!=h.y){this.start(i.x,i.y);}return this;},toElementCenter:function(e,f,h){f=f?Array.from(f):["x","y"];e=document.id(e);var i={},c=e.getPosition(this.element),d=e.getSize(),b=this.element.getScroll(),g=this.element.getSize();
["x","y"].each(function(j){if(f.contains(j)){i[j]=c[j]-(g[j]-d[j])/2;}if(i[j]==null){i[j]=b[j];}if(h&&h[j]){i[j]=i[j]+h[j];}},this);if(i.x!=b.x||i.y!=b.y){this.start(i.x,i.y);
}return this;}});function a(b){return(/^(?:body|html)$/i).test(b.tagName);}})();var Asset={javascript:function(f,c){if(!c){c={};}var a=new Element("script",{src:f,type:"text/javascript"}),g=c.document||document,b=0,d=c.onload||c.onLoad;
var e=d?function(){if(++b==1){d.call(this);}}:function(){};delete c.onload;delete c.onLoad;delete c.document;return a.addEvents({load:e,readystatechange:function(){if(["loaded","complete"].contains(this.readyState)){e.call(this);
}}}).set(c).inject(g.head);},css:function(d,a){if(!a){a={};}var b=new Element("link",{rel:"stylesheet",media:"screen",type:"text/css",href:d});var c=a.onload||a.onLoad,e=a.document||document;
delete a.onload;delete a.onLoad;delete a.document;if(c){b.addEvent("load",c);}return b.set(a).inject(e.head);},image:function(c,b){if(!b){b={};}var d=new Image(),a=document.id(d)||new Element("img");
["load","abort","error"].each(function(e){var g="on"+e,f="on"+e.capitalize(),h=b[g]||b[f]||function(){};delete b[f];delete b[g];d[g]=function(){if(!d){return;
}if(!a.parentNode){a.width=d.width;a.height=d.height;}d=d.onload=d.onabort=d.onerror=null;h.delay(1,a,a);a.fireEvent(e,a,1);};});d.src=a.src=c;if(d&&d.complete){d.onload.delay(1);
}return a.set(b);},images:function(c,b){c=Array.from(c);var d=function(){},a=0;b=Object.merge({onComplete:d,onProgress:d,onError:d,properties:{}},b);return new Elements(c.map(function(f,e){return Asset.image(f,Object.append(b.properties,{onload:function(){a++;
b.onProgress.call(this,a,e,f);if(a==c.length){b.onComplete();}},onerror:function(){a++;b.onError.call(this,a,e,f);if(a==c.length){b.onComplete();}}}));
}));}};
(function(){

var getStylesList = function(styles, planes){
	var list = [];
	Object.each(planes, function(directions){
		Object.each(directions, function(edge){
			styles.each(function(style){
				list.push(style + '-' + edge + (style == 'border' ? '-width' : ''));
			});
		});
	});
	return list;
};

var calculateEdgeSize = function(edge, styles){
	var total = 0;
	Object.each(styles, function(value, style){
		if (style.test(edge)) total = total + value.toInt();
	});
	return total;
};

var isVisible = function(el){
	return !!(!el || el.offsetHeight || el.offsetWidth);
};


Element.implement({

	measure: function(fn){
		if (isVisible(this)) return fn.call(this);
		var parent = this.getParent(),
			toMeasure = [];
		while (!isVisible(parent) && parent != document.body){
			toMeasure.push(parent.expose());
			parent = parent.getParent();
		}
		var restore = this.expose(),
			result = fn.call(this);
		restore();
		toMeasure.each(function(restore){
			restore();
		});
		return result;
	},

	expose: function(){
		if (this.getStyle('display') != 'none') return function(){};
		var before = this.style.cssText;
		this.setStyles({
			display: 'block',
			position: 'absolute',
			visibility: 'hidden'
		});
		return function(){
			this.style.cssText = before;
		}.bind(this);
	},

	getDimensions: function(options){
		options = Object.merge({computeSize: false}, options);
		var dim = {x: 0, y: 0};

		var getSize = function(el, options){
			return (options.computeSize) ? el.getComputedSize(options) : el.getSize();
		};

		var parent = this.getParent('body');

		if (parent && this.getStyle('display') == 'none'){
			dim = this.measure(function(){
				return getSize(this, options);
			});
		} else if (parent){
			try { //safari sometimes crashes here, so catch it
				dim = getSize(this, options);
			}catch(e){}
		}

		return Object.append(dim, (dim.x || dim.x === 0) ? {
				width: dim.x,
				height: dim.y
			} : {
				x: dim.width,
				y: dim.height
			}
		);
	},

	getComputedSize: function(options){
		

		options = Object.merge({
			styles: ['padding','border'],
			planes: {
				height: ['top','bottom'],
				width: ['left','right']
			},
			mode: 'both'
		}, options);

		var styles = {},
			size = {width: 0, height: 0},
			dimensions;

		if (options.mode == 'vertical'){
			delete size.width;
			delete options.planes.width;
		} else if (options.mode == 'horizontal'){
			delete size.height;
			delete options.planes.height;
		}

		getStylesList(options.styles, options.planes).each(function(style){
			styles[style] = this.getStyle(style).toInt();
		}, this);

		Object.each(options.planes, function(edges, plane){

			var capitalized = plane.capitalize(),
				style = this.getStyle(plane);

			if (style == 'auto' && !dimensions) dimensions = this.getDimensions();

			style = styles[plane] = (style == 'auto') ? dimensions[plane] : style.toInt();
			size['total' + capitalized] = style;

			edges.each(function(edge){
				var edgesize = calculateEdgeSize(edge, styles);
				size['computed' + edge.capitalize()] = edgesize;
				size['total' + capitalized] += edgesize;
			});

		}, this);

		return Object.append(size, styles);
	}

});

})();