/**************************************************************

 Copyright (c) 2010 Sonjara, Inc

 Permission is hereby granted, free of charge, to any person
 obtaining a copy of this software and associated documentation
 files (the "Software"), to deal in the Software without
 restriction, including without limitation the rights to use,
 copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the
 Software is furnished to do so, subject to the following
 conditions:

 The above copyright notice and this permission notice shall be
 included in all copies or substantial portions of the Software.

 Except as contained in this notice, the name(s) of the above 
 copyright holders shall not be used in advertising or otherwise 
 to promote the sale, use or other dealings in this Software 
 without prior written authorization.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 OTHER DEALINGS IN THE SOFTWARE.

*****************************************************************/

var Curtain = new Class(
{
	curtain: Class.Empty,

	initialize: function()
	{
		this.curtain = $('curtain');
		if (!this.curtain)
		{
			this.curtain = new Element('div', {'id': 'curtain'});
			var doc = $(document.body ? document.body : document.documentElement);
			
			doc.adopt(this.curtain);
		}
	},
	
	lower: function(onComplete)
	{
		var opacity = this.curtain.get('opacity');
		var display = this.curtain.getStyle('display');
		if (opacity > 0 && display == 'block')
		{
			if (onComplete) onComplete();
			return;
		}
		
		var cw = window.innerWidth == undefined ?
				((document.documentElement.clientWidth == 0) ? document.body.clientWidth : document.documentElement.clientWidth)
												 : window.innerWidth;
		var ch = window.innerHeight == undefined ? 
				((document.documentElement.clientHeight == 0) ? document.body.clientHeight : document.documentElement.clientHeight)
												 : window.innerHeight;
		
		var dw = document.width == undefined ? document.body.offsetWidth: document.width;
		var dh = document.height == undefined ? document.body.offsetHeight: document.height;
		 
		var w = dw;
		var h = dh;
		var l = document.left;
		
		if (ch > h) h = ch;
		
		this.curtain.setStyles({top: 0,
								left: l,
								width: w,
								height: h,
								display: 'block',
								opacity: 0,
								position: 'fixed'});
		if (onComplete)
		{
			new Fx.Tween(this.curtain).start('opacity', 0.5).chain(onComplete);
		}
		else
		{
			this.curtain.fade(0.7);
		}
	},
	
	raise: function(onComplete)
	{
		if (onComplete)
		{
			new Fx.Tween(this.curtain).start('opacity', 0.0).chain(onComplete);
		}
		else
		{
			this.curtain.fade(0.0);
		}
	}
});

Window.implement(
{
	raiseCurtain: function(onComplete)
	{
		new Curtain().raise(onComplete);
	},
	
	lowerCurtain: function(onComplete)
	{
		new Curtain().lower(onComplete);
	}		

});

function modalPopup(title, url, width, height, returnPopup)
{
	var popup = new ModalDialog('modalPopup', {'title': title, 'width': width, 'height': height});
	popup.show(null, url);
	if (returnPopup) return popup;
}

function hideModalPopup(popup)
{
	if (popup) popup.hide();
}

var AbstractDialog = new Class(
{
    Implements: [Options],
    
    options: 
    {
		draggable: 	false,
		handle: 	Class.Empty,
		closeLink: 	Class.Empty,
		body:		Class.Empty,
		width: 		"500px",
		height:		"auto",
		title:		Class.Empty,
		top: 	   Class.Empty,
		left:	   Class.Empty,
		position:  Class.Empty
	},
	
    element: Class.Empty,
    
    initialize: function(element, options)
    {
    	this.element = $(element);
    	this.setOptions(options);
    	
    	if (!this.element)
    	{
    		this.element = this.createDialog(element);
    	}
    	
    	if (this.element) this.element.setStyle('display', 'none');
    	if (this.options.body) 
    	{
    		this.options.body = $(this.options.body);
    	}
    	else
    	{
    		this.options.body = $(this.element.id + "Body");
    	}
    	
    	if (this.options.closeLink)
    	{
    		$(this.options.closeLink).addEvent('click', function(e) { new Event(e).stop(); this.hide(); }.bind(this));
    	}
    	
    	if (this.options.title)	this.setTitle(this.options.title);
    	this.element.setStyles({'width': this.options.width, 'height': this.options.height});
    },
    
    setTitle: function(title)
    {
    	this.options.title = title;
    	if (this.element)
    	{
    		$(this.element.id + 'Title').set('text', title);
    	}
    },	
    
    createDialog: function(id)
    {
    	var dialog = new Element('div', {'class': 'dialog', 
    									 'display': 'none', 
    									 'id': id, 
    									 'width': this.options.width, 
    									 'height': this.options.height});
    	
    	var dialog_header = new Element('div', {'class': 'dialog_header', 'id': id + 'Header'});
    	
    	var padding = new Element('div');
    	padding.setStyles({'padding': '4px'});
    	
    	var body = new Element('div', {'id': id + 'Body', 'class': 'dialog_body'});
    	
    	padding.set('html', "<div style='float: right'>&nbsp;<a id='close" + id + "' href=''>Close &times;</a></div>" +
    						"<span style='font-weight: bold' id='" + id + "Title'>" + this.options.title + "</span>");
    	
    	this.options.closeLink = "close" + id;
    	this.options.body = body;
     	
    	if (this.options.draggable)
    	{
    		this.options.handle = dialog_header;
    		this.options.handle.setStyle('cursor', 'move');    		
    	}
    	
    	padding.inject(dialog_header);    	
    	dialog_header.inject(dialog, 'top');
    	body.inject(dialog, 'bottom');
		var doc = $(document.body ? document.body : document.documentElement);
		
		doc.adopt(dialog);
		return dialog;
    }    
});

var ModalDialog = new Class(
{
	Extends: AbstractDialog,
	
    initialize: function(element, options)
    {
		this.parent(element, options);
    },
    	
    center: function()
    {
    	if (this.options.body)
    	{
    		this.options.body.setStyle('height', 'auto');
    	}
    	
    	var curtain = $('curtain');
    	var windowHeight = window.innerHeight ? window.innerHeight :
    		document.documentElement.clientHeight ?
    		document.documentElement.clientHeight : document.body.clientHeight; 
    	
    	if (this.element.offsetHeight > windowHeight && this.options.body)
    	{
    		this.options.body.setStyles({'height': windowHeight * 0.9, 'overflow-y': 'auto'});
    	}
    	
    	var x = (document.body.clientWidth - this.element.offsetWidth) / 2;
    	var y = (windowHeight - this.element.offsetHeight) / 2;
    	this.element.setStyles({position: (this.draggable || window.ie6) ? 'absolute' : 'fixed', top: y, left: x, 'z-index': 150});
    },
    
    show: function(onComplete, fragmentURL)
    {
    	var reload = this.element.getStyle('display') != 'none';
    	
    	if (this.options.draggable)
    	{
    		var options = 
    		{
    			preventDefault: true, 
    			onDrag: function(element, event) 
    			{ 
    				new Event(event).stop(); 
    			} 
    		};
    		
    		if (this.options.handle)
    		{
    			options.handle = this.options.handle;
    		}
    		
    		var drag = new Drag.Move(this.element, options);
    	}
    	
    	
    	if (fragmentURL && this.options.body)
    	{
    		if (!reload) this.options.body.set('text', "Loading...");
    		var request = new Request.HTML(
    		{
    			evalScripts: false,
    			evalResponse: false,
    			method: 'get', 
    			url: fragmentURL, 
    			onSuccess: function(tree, elements, html, script) 
    			{ 
    				this.options.body.set('text', '');
    				this.options.body.adopt(tree);
    				$exec(script);
    				this.center();
    			}.bind(this)
    		});
    		request.send();
    	}
    	
    	window.lowerCurtain(function() {
    		this.element.setStyle('display', 'block');
    		this.center();
    		if (onComplete) onComplete(this);
    	}.bind(this));
    },
    
    hide: function()
    {
    	window.raiseCurtain();
    	this.element.setStyle('display', 'none');
    }
});


var FloatingDialog = new Class(
{
	Extends: AbstractDialog,
	
	initialize: function(element, options)
	{
		this.parent(element, options);
    },
	
    position: function()
    {
		var x, y;
		
		if (this.top && this.left)
		{
			x = this.left;
			y = this.top;
		}
		else
		{
	    	var windowHeight = window.innerHeight ? window.innerHeight :
	    		document.documentElement.clientHeight ?
	    		document.documentElement.clientHeight : document.body.clientHeight; 
	    	
	    	x = (document.body.clientWidth - this.element.offsetWidth) / 2;
	    	y = (windowHeight - this.element.offsetHeight) / 2;
		}

		var pos;
		
		if (this.options.position) 
		{
			pos = this.options.position;
		}
		else
		{
			pos = (this.draggable || window.ie6) ? 'absolute' : 'fixed';
		}
		
		this.element.setStyles({position: pos , top: y, left: x, 'z-index': 150});
    },
    
    
    show: function(onComplete, fragmentURL)
    {
    	if (this.options.draggable)
    	{
    		var options = 
    		{
    			preventDefault: true, 
    			onDrag: function(element, event) 
    			{ 
    				new Event(event).stop(); 
    			} 
    		};
    		
    		if (this.options.handle)
    		{
    			options.handle = this.options.handle;
    		}
    		
    		var drag = new Drag.Move(this.element, options);
    	}
    	
    	this.position();
    	
    	if (fragmentURL && this.options.body)
    	{
    		this.options.body.set('text', "Loading...");
    		var request = new Request.HTML(
    		{
    			evalScripts: false,
    			evalResponse: false,
    			method: 'get', 
    			url: fragmentURL, 
    			onSuccess: function(tree, elements, html, script) 
    			{ 
    				this.options.body.set('text', '');
    				this.options.body.adopt(tree);
    				$exec(script);
    				this.position();
    			}.bind(this)
    		});
    		request.send();
    	}
    	
    	this.element.setStyles({'display': 'block', 'opacity': 0});
    	new Fx.Tween(this.element).start('opacity', 1).chain(onComplete);
    },
    
    hide: function()
    {
    	new Fx.Tween(this.element).start('opacity', 0).chain(function() { this.element.setStyle('display', 'none');}.bind(this));
    }
});


var ProgressiveSearch = new Class({
	
	Implements: Options,
	  
	options: 
	{
		search:			Class.Empty,
		minimumLength: 	4,
		height: 		'150px',
		width:			Class.Empty,
		cssClass:		''
	},
  
	element:	Class.Empty,
	list: 		Class.Empty,
	container:	Class.Empty,
	allowHide:	true,
	
	initialize: function(element, options)
	{
		this.setOptions(options);
		this.element = $(element);
		this.list = new Element('div', {'id': this.element.id + '_progressive_search', 'class': 'progressive_search'});
		this.list.setStyles({'display': 'none', 'position': 'absolute', 'max-height': this.options.height, 'overflow-y': 'auto'});
		this.container = new Element('div');
		
		this.list.adopt(this.container);
		
		if (this.options.cssClass) this.list.addClass(this.options.cssClass);
		
		var body = $(document.body ? document.body : document.documentElement);
		body.adopt(this.list);
		
		this.element.addEvent('keyup', function() { this.onKeyPress();}.bind(this));
		this.element.addEvent('blur', function() { this.hideList();}.bind(this));
		this.list.addEvent('mouseover', function() { this.allowHide = false; }.bind(this));
		this.list.addEvent('mouseout', function() { this.allowHide = true; }.bind(this));
	},
	
	onKeyPress: function()
	{
		var val = this.element.value;
		
		if (val.length < this.options.minimumLength) 
		{
			this.list.setStyle('display', 'none');
			return;
		}
		
		var name = this.element.id;
		var request = new Request(
	    		{
	    			method: 'get', 
	    			url: appendQueryString(this.options.search, name + "=" + encodeURIComponent(val)), 
	    			onSuccess: function(html) 
	    			{ 
	    				this.showList(html);
	    			}.bind(this)
	    		});
   		request.send();
	},
	
	showList: function(html)
	{
		this.container.set('html', html);
		var coords = this.element.getCoordinates();
		this.list.setStyles({'top': coords.bottom, 'left': coords.left, 'width': this.options.width ? this.options.width : coords.width, 'max-height': this.options.height, 'display': 'block'});
	},
	
	hideList: function()
	{
		if (!this.allowHide) return;
		
		this.list.setStyle('display', 'none');
	}
});



var PaginatingList = new Class(
{
	Implements: Options,
  
	options: 
	{
    	per_page: 10
	},
	
	list: 			Class.Empty,
	paginator: 		Class.Empty,
	current_page:	1,

	initialize: function(list, paginator, options)
	{
		this.list = $(list);
		this.paginator = $(paginator);
		this.setOptions(options);
		this.pages = Math.ceil(this.list.getElements("li").length  / this.options.per_page );
		
		this.createPagination();
		
		this.toPage(this.current_page);
	},
	
	createPagination: function()
	{
		this.paginator.empty();
	    this.createPaginationNode( '&#171;', function(evt)
	    {
	        var evt = new Event( evt );
	        this.toPrevPage();
	        evt.stop();
	        return false;
	    }).injectInside( this.paginator );
	      
	    var li = new Element('li', {'class': 'pager'} );
	    var a = new Element('a', {'href': "#", 'class': 'goto-page', 'html': 'Page ' + (this.current_page || 1) + " of " + this.pages});
	    a.injectInside(li);
	    li.injectInside(this.paginator);
	    
	    this.createPaginationNode( '&#187;', function(evt)
	    {
	        var evt = new Event( evt );
	        this.toNextPage();
	        evt.stop();
	        return false;
	    }).injectInside( this.paginator );
	},
	  
	createPaginationNode: function( text, evt ) 
	{
	     var span = new Element( 'span' ).set( 'html', text );
	     if (text == '&#171;'){
	       var a = new Element( 'a', { 'href': '#', 'class': 'previous-page' }).addEvent( 'click', evt.bind( this ) );
	     } else if (text == '&#187;'){
	       var a = new Element( 'a', { 'href': '#', 'class': 'next-page' }).addEvent( 'click', evt.bind( this ) );
	     } else {
	       var a = new Element( 'a', { 'href': '#'}).addEvent( 'click', evt.bind( this ) );
	     }
	     var li = new Element( 'li' );
	     span.injectInside( a.injectInside( li ) );
	     return li;	    
	},
	
	updatePage: function()
	{
		var pagers = this.paginator.getElements("a.goto-page");
    	pagers.each(function(p) { p.innerHTML = 'Page ' + (this.current_page || 1) + " of " + this.pages; }.bind(this));    	
	},
	
	toPrevPage: function()
	{
		this.toPage( this.current_page - 1 );
	},
	
	toNextPage: function()
	{
		this.toPage( this.current_page + 1 );
	},
	
	toPage: function(page_num)
	{
	    page_num = page_num.toInt();
	    if (page_num > this.pages || page_num < 1) return;
	    this.current_page = page_num;
	    this.low_limit = this.options.per_page * ( this.current_page - 1 );
	    this.high_limit = this.options.per_page * this.current_page;
	    
	    var kids = this.list.getChildren();
	    
	    for(var i = 0; i < this.low_limit; ++i)
	    {
	    	kids[i].setStyle('display', 'none');
	    }
	    
	    for(var i = this.low_limit; i < this.high_limit && i < kids.length; ++i)
	    {
	    	kids[i].setStyle('display', 'list-item');
	    }
	    
	    for(var i = this.high_limit; i < kids.length; ++i)
	    {
	    	kids[i].setStyle('display', 'none');
	    }
	    
	    this.updatePage();
	}
});


var Splitter = new Class({

	Implements: Options,
	
	container: null,
	layout: null,
	panes: [],
	lastPosition: null,
	
	options: 
	{
		orientation: 'vertical',
		split: [50, 50],
		minimumSize: 10
	},
	
	initialize: function(element, options)
	{
		this.container = $(element);
		this.setOptions(options);
		
		this.panes = this.container.getChildren();
		if (this.panes.length != 2)
		{
			alert("Splitting Headache!");
			return;
		}
		
		this.layout = new Element('div');
		this.layout.setStyles({"width": "100%", "height": "100%"});
		this.splitter = new Element('div').addClass(this.getSplitterClass());
		this.splitter.setStyle("float", "left");
		this.layout.wraps(this.panes[0]);
		this.splitter.inject(this.layout);
		this.panes[1].inject(this.layout);
		this.layout.inject(this.container);
		
		this.panes.each(function(elt) { elt.setStyles({"overflow-y": "auto", "float": "left"}); });
		
		this.splitter.addEvent('mousedown', function(e) { this.startResize(new Event(e)); }.bind(this));
		this.calculateLayout();
	},
	
	getSplitterClass: function()
	{
		return "splitter_" + this.options.orientation;
	},
	
	setOrientation: function(orientation)
	{
		this.splitter.removeClass(this.getSplitterClass());
		this.options.orientation = orientation;
		this.splitter.addClass(this.getSplitterClass());
		this.calculateLayout();
	},
	
	calculateLayout: function()
	{
		var vert = this.options.orientation == 'vertical';
		var prop = vert ? "height" : "width";
		
		if (vert)
		{
			var width = this.layout.getWidth();
			this.panes.each(function(elt) { elt.setStyle("width", width); });
		}
		else
		{
			var height = this.layout.getHeight();
			this.panes.each(function(elt) { elt.setStyle("height", height); });
		}

		var splitterSize = 9;//(vert) ? this.splitter.getHeight() : this.splitter.getWidth();
		
		var ratio = [0,0];
		ratio[0] = this.options.split[0] / (this.options.split[0] + this.options.split[1]);
		ratio[1] = this.options.split[1] / (this.options.split[0] + this.options.split[1]);
		
		
		var size = (vert) ? this.layout.getHeight() : this.layout.getWidth();
		size -= splitterSize;
		
		this.panes[0].setStyle(prop, Math.floor(ratio[0] * size));
		this.panes[1].setStyle(prop, Math.floor(ratio[1] * size));
	},
	
	startResize: function(e)
	{
		var vert = this.options.orientation == 'vertical';
		var axis = (vert) ? "y" : "x";
		var minF = (vert) ? "top" : "left";
		var maxF = (vert) ? "bottom" : "right";
		
        var performDrag = function(e) 
        {
            var pos = mousePosition(e);
            var coords = this.container.getCoordinates();
            
            var range = coords[maxF] - coords[minF];
            var thumb = (pos[axis] - coords[minF]) / range * 100;
            if (thumb < this.options.minimumSize) thumb = this.options.minimumSize;
            if (thumb > (100 - this.options.minimumSize)) thumb = 100 - this.options.minimumSize;
            
            this.options.split[0] = thumb;
            this.options.split[1] = 100 - thumb;
            
            this.calculateLayout();
        }.bind(this);

		var endDrag = function(e) 
        {            
            document.removeEvent('mousemove', performDrag);
            document.removeEvent('mouseup', endDrag);
        };
        
        var mousePosition = function(e) 
        {
            return { x: e.event.clientX + document.documentElement.scrollLeft,
                y: e.event.clientY + document.documentElement.scrollTop};
        };
        
        document.addEvents(
		{
			'mousemove': performDrag,
			'mouseup': endDrag
		});
	}
	
});

var FocusWatcher = new Class({
	
	Implements : [Options, Events],
	
    options: {
            elementTypes : ['textarea','input','select','button','a'],
            onFocusChanged: $empty 
    }, 
    
	focus: null,
	blur: null,
	elements: [],
	
	initialize: function(options)
	{
    	var watch = this;
    	this.setOptions(options);
    	this.options.elementTypes.each(function(type) { this.elements.combine(($$(type))); }.bind(this));
    	this.elements.each(function(elt)
    	{
    		elt.addEvents({'focus': function(e) { this.focus = elt; this.fireEvent('focusChanged'); }.bind(watch),
    					   'blur':  function(e) { this.blur = elt; }.bind(watch)
    					  });
    	});
	}
});
    	
window.addEvent('domready', function() { document.focusWatcher = new FocusWatcher(); });