//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.

/*
---

script: More.js

name: More

description: MooTools More

license: MIT-style license

requires:
  - Core/MooTools

provides: [MooTools.More]

...
*/

MooTools.More = {
	'version': '1.2.5.1',
	'build': '254884f2b83651bf95260eed5c6cceb838e22d8e'
};


/*
---

script: Element.Shortcuts.js

name: Element.Shortcuts

description: Extends the Element native object to include some shortcut methods.

license: MIT-style license

authors:
  - Aaron Newton

requires:
  - Core/Element.Style
  - /MooTools.More

provides: [Element.Shortcuts]

...
*/

Element.implement({

	isDisplayed: function(){
		return this.getStyle('display') != 'none';
	},

	isVisible: function(){
		var w = this.offsetWidth,
			h = this.offsetHeight;
		return (w == 0 && h == 0) ? false : (w > 0 && h > 0) ? true : this.style.display != 'none';
	},

	toggle: function(){
		return this[this.isDisplayed() ? 'hide' : 'show']();
	},

	hide: function(){
		var d;
		try {
			//IE fails here if the element is not in the dom
			d = this.getStyle('display');
		} catch(e){}
		if (d == "none") return this;
		return this.store('element:_originalDisplay', d || '').setStyle('display', 'none');
	},

	show: function(display){
		if (!display && this.isDisplayed()) return this;
		display = display || this.retrieve('element:_originalDisplay') || 'block';
		return this.setStyle('display', (display == 'none') ? 'block' : display);
	},

	swapClass: function(remove, add){
		return this.removeClass(remove).addClass(add);
	}
});

Document.implement({
	clearSelection: function(){
		if (document.selection && document.selection.empty) {
			document.selection.empty();
		} else if (window.getSelection) {
			var selection = window.getSelection();
			if (selection && selection.removeAllRanges) selection.removeAllRanges();
		}
	}
});

/*
---

script: Fx.Elements.js

name: Fx.Elements

description: Effect to change any number of CSS properties of any number of Elements.

license: MIT-style license

authors:
  - Valerio Proietti

requires:
  - Core/Fx.CSS
  - /MooTools.More

provides: [Fx.Elements]

...
*/

Fx.Elements = new Class({

	Extends: Fx.CSS,

	initialize: function(elements, options){
		this.elements = this.subject = $$(elements);
		this.parent(options);
	},

	compute: function(from, to, delta){
		var now = {};

		for (var i in from){
			var iFrom = from[i], iTo = to[i], iNow = now[i] = {};
			for (var p in iFrom) iNow[p] = this.parent(iFrom[p], iTo[p], delta);
		}

		return now;
	},

	set: function(now){
		for (var i in now){
			if (!this.elements[i]) continue;

			var iNow = now[i];
			for (var p in iNow) this.render(this.elements[i], p, iNow[p], this.options.unit);
		}

		return this;
	},

	start: function(obj){
		if (!this.check(obj)) return this;
		var from = {}, to = {};

		for (var i in obj){
			if (!this.elements[i]) continue;

			var iProps = obj[i], iFrom = from[i] = {}, iTo = to[i] = {};

			for (var p in iProps){
				var parsed = this.prepare(this.elements[i], p, iProps[p]);
				iFrom[p] = parsed.from;
				iTo[p] = parsed.to;
			}
		}

		return this.parent(from, to);
	}

});


/*
---

script: Fx.Scroll.js

name: Fx.Scroll

description: Effect to smoothly scroll any element, including the window.

license: MIT-style license

authors:
  - Valerio Proietti

requires:
  - Core/Fx
  - Core/Element.Event
  - Core/Element.Dimensions
  - /MooTools.More

provides: [Fx.Scroll]

...
*/

Fx.Scroll = new Class({

	Extends: Fx,

	options: {
		offset: {x: 0, y: 0},
		wheelStops: true
	},

	initialize: function(element, options){
		this.element = this.subject = document.id(element);
		this.parent(options);
		var cancel = this.cancel.bind(this, false);

		if ($type(this.element) != 'element') this.element = document.id(this.element.getDocument().body);

		var stopper = this.element;

		if (this.options.wheelStops){
			this.addEvent('start', function(){
				stopper.addEvent('mousewheel', cancel);
			}, true);
			this.addEvent('complete', function(){
				stopper.removeEvent('mousewheel', cancel);
			}, true);
		}
	},

	set: function(){
		var now = Array.flatten(arguments);
		if (Browser.Engine.gecko) now = [Math.round(now[0]), Math.round(now[1])];
		this.element.scrollTo(now[0] + this.options.offset.x, now[1] + this.options.offset.y);
	},

	compute: function(from, to, delta){
		return [0, 1].map(function(i){
			return Fx.compute(from[i], to[i], delta);
		});
	},

	start: function(x, y){
		if (!this.check(x, y)) return this;
		var scrollSize = this.element.getScrollSize(),
			scroll = this.element.getScroll(), 
			values = {x: x, y: y};
		for (var z in values){
			var max = scrollSize[z];
			if ($chk(values[z])) values[z] = ($type(values[z]) == 'number') ? values[z] : max;
			else values[z] = scroll[z];
			values[z] += this.options.offset[z];
		}
		return this.parent([scroll.x, scroll.y], [values.x, values.y]);
	},

	toTop: function(){
		return this.start(false, 0);
	},

	toLeft: function(){
		return this.start(0, false);
	},

	toRight: function(){
		return this.start('right', false);
	},

	toBottom: function(){
		return this.start(false, 'bottom');
	},

	toElement: function(el){
		var position = document.id(el).getPosition(this.element);
		return this.start(position.x, position.y);
	},

	scrollIntoView: function(el, axes, offset){
		axes = axes ? $splat(axes) : ['x','y'];
		var to = {};
		el = document.id(el);
		var pos = el.getPosition(this.element);
		var size = el.getSize();
		var scroll = this.element.getScroll();
		var containerSize = this.element.getSize();
		var edge = {
			x: pos.x + size.x,
			y: pos.y + size.y
		};
		['x','y'].each(function(axis) {
			if (axes.contains(axis)) {
				if (edge[axis] > scroll[axis] + containerSize[axis]) to[axis] = edge[axis] - containerSize[axis];
				if (pos[axis] < scroll[axis]) to[axis] = pos[axis];
			}
			if (to[axis] == null) to[axis] = scroll[axis];
			if (offset && offset[axis]) to[axis] = to[axis] + offset[axis];
		}, this);
		if (to.x != scroll.x || to.y != scroll.y) this.start(to.x, to.y);
		return this;
	},

	scrollToCenter: function(el, axes, offset){
		axes = axes ? $splat(axes) : ['x', 'y'];
		el = $(el);
		var to = {},
			pos = el.getPosition(this.element),
			size = el.getSize(),
			scroll = this.element.getScroll(),
			containerSize = this.element.getSize(),
			edge = {
				x: pos.x + size.x,
				y: pos.y + size.y
			};

		['x','y'].each(function(axis){
			if(axes.contains(axis)){
				to[axis] = pos[axis] - (containerSize[axis] - size[axis])/2;
			}
			if(to[axis] == null) to[axis] = scroll[axis];
			if(offset && offset[axis]) to[axis] = to[axis] + offset[axis];
		}, this);
		if (to.x != scroll.x || to.y != scroll.y) this.start(to.x, to.y);
		return this;
	}

});


/*
Script: Assets.js
	Provides methods to dynamically load JavaScript, CSS, and Image files into the document.

License:
	MIT-style license.
*/

var Asset = new Hash({

	javascript: function(source, properties){
		properties = $extend({
			onload: $empty,
			document: document,
			check: $lambda(true)
		}, properties);
		
		var script = new Element('script', {'src': source, 'type': 'text/javascript'});
		
		var load = properties.onload.bind(script), check = properties.check, doc = properties.document;
		delete properties.onload; delete properties.check; delete properties.document;
		
		script.addEvents({
			load: load,
			readystatechange: function(){
				if (['loaded', 'complete'].contains(this.readyState)) load();
			}
		}).setProperties(properties);
		
		
		if (Browser.Engine.webkit419) var checker = (function(){
			if (!$try(check)) return;
			$clear(checker);
			load();
		}).periodical(50);
		
		return script.inject(doc.head);
	},

	css: function(source, properties){
		return new Element('link', $merge({
			'rel': 'stylesheet', 'media': 'screen', 'type': 'text/css', 'href': source
		}, properties)).inject(document.head);
	},

	image: function(source, properties){
		properties = $merge({
			'onload': $empty,
			'onabort': $empty,
			'onerror': $empty
		}, properties);
		var image = new Image();
		var element = $(image) || new Element('img');
		['load', 'abort', 'error'].each(function(name){
			var type = 'on' + name;
			var event = properties[type];
			delete properties[type];
			image[type] = function(){
				if (!image) return;
				if (!element.parentNode){
					element.width = image.width;
					element.height = image.height;
				}
				image = image.onload = image.onabort = image.onerror = null;
				event.delay(1, element, element);
				element.fireEvent(name, element, 1);
			};
		});
		image.src = element.src = source;
		if (image && image.complete) image.onload.delay(1);
		return element.setProperties(properties);
	},

	images: function(sources, options){
		options = $merge({
			onComplete: $empty,
			onProgress: $empty
		}, options);
		if (!sources.push) sources = [sources];
		var images = [];
		var counter = 0;
		sources.each(function(source){
			var img = new Asset.image(source, {
				'onload': function(){
					options.onProgress.call(this, counter, sources.indexOf(source));
					counter++;
					if (counter == sources.length) options.onComplete();
				}
			});
			images.push(img);
		});
		return new Elements(images);
	}

});