/*MooTools, My Object Oriented Javascript Tools. Copyright (c) 2006-2007 Valerio Proietti, <http://mad4milk.net>, MIT Style License.||Clientcide Copyright (c) 2006-2008, http://www.clientcide.com/wiki/cnet-libraries#license*/

var Clientcide = {
	version: '763',
	setAssetLocation: function(baseHref) {
		if (window.StickyWin && StickyWin.ui) {
			StickyWin.UI.refactor({
				options: {
					baseHref: baseHref + '/stickyWinHTML/'
				}
			});
			if (StickyWin.alert) {
				var CGFsimpleErrorPopup = StickyWin.alert.bind(window);
				StickyWin.alert = function(msghdr, msg, base) {
				    return CGFsimpleErrorPopup(msghdr, msg, base||baseHref + "/simple.error.popup");
				};
			}
		}
		if (window.TagMaker) {
			TagMaker = TagMaker.refactor({
			    options: {
			        baseHref: baseHref + '/tips/'
			    }
			});
		}
		if (window.ProductPicker) {
			ProductPicker.refactor({
			    options:{
			        baseHref: baseHref + '/Picker'
			    }
			});
		}

		if (window.Autocompleter) {
			var AcClientcide = {
					options: {
						baseHref: baseHref + '/autocompleter/'
					}
			};
			Autocompleter.Base.refactor(AcClientcide);
			if (Autocompleter.Ajax) {
				["Base", "Xhtml", "Json"].each(function(c){
					if(Autocompleter.Ajax[c]) Autocompleter.Ajax[c].refactor(AcClientcide);
				});
			}
			if (Autocompleter.Local) Autocompleter.Local.refactor(AcClientcide);
			if (Autocompleter.JsonP) Autocompleter.JsonP.refactor(AcClientcide);
		}

		if (window.Lightbox) {
			Lightbox.refactor({
			    options: {
			        assetBaseUrl: baseHref + '/slimbox/'
			    }
			});
		}

		if (window.Waiter) {
			Waiter.refactor({
				options: {
					baseHref: baseHref + '/waiter/'
				}
			});
		}
	},
	preLoadCss: function(){
		if (window.DatePicker) new DatePicker();
		if (window.ProductPicker) new ProductPicker();
		if (window.TagMaker) new TagMaker();
		if (window.StickyWin && StickyWin.ui) StickyWin.ui();
		if (window.StickyWin && StickyWin.pointy) StickyWin.pointy();
		Clientcide.preloaded = true;
		return true;
	},
	preloaded: false
};
(function(){
	if (!window.addEvent) return;
	var preload = function(){
		if (window.dbug) dbug.log('preloading clientcide css');
		if (!Clientcide.preloaded) Clientcide.preLoadCss();
	};
	window.addEvent('domready', preload);
	window.addEvent('load', preload);
})();
setCNETAssetBaseHref = Clientcide.setAssetLocation;
var MooScroller = new Class({
	Implements: [Options, Events],
	options: {
		maxThumbSize: 10,
		mode: 'vertical',
		width: 0,
		scrollSteps: 10,
		wheel: true,
		scrollLinks: {
			forward: 'scrollForward',
			back: 'scrollBack'
		},
		hideWhenNoOverflow: true
	},

	initialize: function(content, knob, options){
		this.setOptions(options);
		this.horz = (this.options.mode == "horizontal");

		this.content = $(content).setStyle('overflow', 'hidden');
		this.knob = $(knob);
		this.track = this.knob.getParent();
		this.setPositions();

		if(this.horz && this.options.width) {
			this.wrapper = new Element('div');
			this.content.getChildren().each(function(child){
				this.wrapper.adopt(child);
			}, this);
			this.wrapper.inject(this.content).setStyle('width', this.options.width);
		}
		this.bound = {
			'start': this.start.bind(this),
			'end': this.end.bind(this),
			'drag': this.drag.bind(this),
			'wheel': this.wheel.bind(this),
			'page': this.page.bind(this)
		};

		this.position = {};
		this.mouse = {};
		this.update();
		this.attach();

		var clearScroll = function (){
			$clear(this.scrolling);
		}.bind(this);
		['forward','back'].each(function(direction) {
			var lnk = $(this.options.scrollLinks[direction]);
			if(lnk) {
				lnk.addEvents({
					mousedown: function() {
						this.scrolling = this[direction].periodical(50, this);
					}.bind(this),
					mouseup: clearScroll.bind(this),
					click: clearScroll.bind(this)
				});
			}
		}, this);
		this.knob.addEvent('click', clearScroll.bind(this));
		window.addEvent('domready', function(){
			try {
				$(document.body).addEvent('mouseup', clearScroll.bind(this));
			}catch(e){}
		}.bind(this));
	},
	setPositions: function(){
		[this.track, this.knob].each(function(el){
			if (el.getStyle('position') == 'static') el.setStyle('position','relative');
		});

	},
	toElement: function(){
		return this.content;
	},
	update: function(){
		var plain = this.horz?'Width':'Height';
		this.contentSize = this.content['offset'+plain];
		this.contentScrollSize = this.content['scroll'+plain];
		this.trackSize = this.track['offset'+plain];

		this.contentRatio = this.contentSize / this.contentScrollSize;

		this.knobSize = (this.trackSize * this.contentRatio).limit(this.options.maxThumbSize, this.trackSize);

		if (this.options.hideWhenNoOverflow) {
			this.hidden = this.knobSize == this.trackSize;
			this.track.setStyle('opacity', this.hidden?0:1);
		}

		this.scrollRatio = this.contentScrollSize / this.trackSize;
		this.knob.setStyle(plain.toLowerCase(), this.knobSize);

		this.updateThumbFromContentScroll();
		this.updateContentFromThumbPosition();
	},

	updateContentFromThumbPosition: function(){
		this.content[this.horz?'scrollLeft':'scrollTop'] = this.position.now * this.scrollRatio;
	},

	updateThumbFromContentScroll: function(){
		this.position.now = (this.content[this.horz?'scrollLeft':'scrollTop'] / this.scrollRatio).limit(0, (this.trackSize - this.knobSize));
		this.knob.setStyle(this.horz?'left':'top', this.position.now);
	},

	attach: function(){
		this.knob.addEvent('mousedown', this.bound.start);
		if (this.options.scrollSteps) this.content.addEvent('mousewheel', this.bound.wheel);
		this.track.addEvent('mouseup', this.bound.page);
	},

	wheel: function(event){
		if (this.hidden) return;
		this.scroll(-(event.wheel * this.options.scrollSteps));
		this.updateThumbFromContentScroll();
		event.stop();
	},

	scroll: function(steps){
		steps = steps||this.options.scrollSteps;
		this.content[this.horz?'scrollLeft':'scrollTop'] += steps;
		this.updateThumbFromContentScroll();
		this.fireEvent('onScroll', steps);
	},
	forward: function(steps){
		this.scroll(steps);
	},
	back: function(steps){
		steps = steps||this.options.scrollSteps;
		this.scroll(-steps);
	},

	page: function(event){
		var axis = this.horz?'x':'y';
		var forward = (event.page[axis] > this.knob.getPosition()[axis]);
		this.scroll((forward?1:-1)*this.content['offset'+(this.horz?'Width':'Height')]);
		this.updateThumbFromContentScroll();
		this.fireEvent('onPage', forward);
		event.stop();
	},
	start: function(event){
		var axis = this.horz?'x':'y';
		this.mouse.start = event.page[axis];
		this.position.start = this.knob.getStyle(this.horz?'left':'top').toInt();
		document.addEvent('mousemove', this.bound.drag);
		document.addEvent('mouseup', this.bound.end);
		this.knob.addEvent('mouseup', this.bound.end);
		event.stop();
	},

	end: function(event){
		document.removeEvent('mousemove', this.bound.drag);
		document.removeEvent('mouseup', this.bound.end);
		this.knob.removeEvent('mouseup', this.bound.end);
		event.stop();
	},

	drag: function(event){
		var axis = this.horz?'x':'y';
		this.mouse.now = event.page[axis];
		this.position.now = (this.position.start + (this.mouse.now - this.mouse.start)).limit(0, (this.trackSize - this.knobSize));
		this.updateContentFromThumbPosition();
		this.updateThumbFromContentScroll();
		event.stop();
	}

});