YAHOO.buzzWatch.panels = {};

function initPanels() {

	// 1) Quotes 
	
	// Create a buzzWatch panel
 	YAHOO.buzzWatch.panels["yahoofinance.quotes"] = new BuzzWatchPanel(
 		"yahoofinance.quotes", 
 		10, 
 		290, 
 		"220px",
 		function() {
 			return YAHOO.buzzWatch.config.symbol == ""? undefined : "yahoo_quotes.php?tag=" + YAHOO.buzzWatch.config.symbol;
 		}
 	);
 	
 	// Overload the success handler since we don't expect RSS
 	// which is the default for BuzzWatchPanel
 	
	YAHOO.buzzWatch.panels["yahoofinance.quotes"].callback["success"] = function(o) {
		if(o.responseText !== undefined){
			this.isEmpty = false;
			this.setTimeout(getMaxAge(o));
			var xotree = new XML.ObjTree();
			var tree = xotree.parseDOM( o.responseXML.documentElement );
			if (tree.quote.name != undefined) {
				setValue('yahoofinance.quotes.title', "Quotes ("+tree.quote.name+")");
				setValue('yahoofinance.quotes.last_price', tree.quote.lastTrade.price);
				setValue('yahoofinance.quotes.last_time', tree.quote.lastTrade.time + " EST (" + tree.quote.lastTrade.date +")" );
				setValue('yahoofinance.quotes.change', tree.quote.change);
				setValue('yahoofinance.quotes.open', tree.quote.open);
				setValue('yahoofinance.quotes.high', tree.quote.high);
				setValue('yahoofinance.quotes.low', tree.quote.low);
				setValue('yahoofinance.quotes.volume', tree.quote.volume);
			}
		}
	}

	// 2) Chart
	
	// Create a buzzWatch panel
	
    YAHOO.buzzWatch.panels["yahoofinance.chart"] = new BuzzWatchPanel(
    	"yahoofinance.chart", 
    	10, 
    	150, 
    	"220px"
    );
    // Overload the load method since we don't use XMLMHTTPRequests at all!
    YAHOO.buzzWatch.panels["yahoofinance.chart"].load = function () {
    	if (YAHOO.buzzWatch.config.symbol!="") {
    		this.setTimeout(300);
    		this.isEmpty = false;
    		var img = document.getElementById('yahoofinance.chart.img');
         	img.setAttribute("src", "yahoo_chart.php?tag=" 
        		+ YAHOO.buzzWatch.config.symbol + "&date=" + new Date());
        }
    }
     
	// 3) Financial news

	// Create a panel
    YAHOO.buzzWatch.panels["yahoofinance.news"] = new BuzzWatchPanel(
    	"yahoofinance.news", 
    	250, 
    	150, 
    	"350px",
 		function() {
 			return YAHOO.buzzWatch.config.symbol == ""? undefined : "yahoo_finance_news.php?tag=" + YAHOO.buzzWatch.config.symbol;
 		}
     );
    
    // 4) del.icio.us 
 
	// Create a panel
	
    YAHOO.buzzWatch.panels["delicious"] = new BuzzWatchPanel(
    	"delicious", 
    	620, 
    	150, 
    	"350px",
    	function() {
 		return YAHOO.buzzWatch.config.tag == ""? undefined : "delicious.php?tag=" + YAHOO.buzzWatch.config.tag;
 		//return YAHOO.buzzWatch.config.tag == ""? undefined : "http://del.icio.us/rss/tag/" + YAHOO.buzzWatch.config.tag;
 		}
     );

}

function refreshPanels(){
	for (name in YAHOO.buzzWatch.panels) {
		var panel = YAHOO.buzzWatch.panels[name];
		if (panel.isVisible() || panel.isEmpty)
			panel.show();
	}
}

function BuzzWatchPanel (name, x, y, width, getUrl) {
	this.name = name;
	this.getUrl = getUrl;
    this.oMenuItemElement = document.getElementById("menubar.view." + name);
    this.panel = new YAHOO.widget.Panel(
    	name, 
    	{  
    		x:x, 
    		y:y, 
    		width:width,
    		fixedcenter: false, 
    		constraintoviewport: false, 
    		underlay:"none", 
    		close:true, 
    		visible:true, 
    		draggable:true, 
    		modal:false 
    	} 
    );
    this.isEmpty = true;
    YAHOO.util.Event.addListener(this.oMenuItemElement, "click", this.toggle, this, true);
    this.panel.beforeHideEvent.subscribe(this.beforeHide, this);
    this.panel.beforeShowEvent.subscribe(this.beforeShow, this);
    
	this.callback = {
  		success: this.handleSuccess,
  		failure: this.handleFailure,
  		scope: this
	};
	
    
}
BuzzWatchPanel.prototype.beforeHide = function(type, args, me) {
    YAHOO.util.Dom.removeClass(me.oMenuItemElement, "checked");
    me.clearTimeout();
}
BuzzWatchPanel.prototype.beforeShow = function(type, args, me) {
    YAHOO.util.Dom.addClass(me.oMenuItemElement, "checked");
    me.setTimeout();
}
BuzzWatchPanel.prototype.show = function()  {
	this.load();
    this.panel.render();
	this.panel.show();
}
BuzzWatchPanel.prototype.hide = function()  {
	this.panel.hide();
}
BuzzWatchPanel.prototype.isVisible = function()  {
	return YAHOO.util.Dom.hasClass(this.oMenuItemElement, "checked");
}
BuzzWatchPanel.prototype.toggle = function()  {
    if (this.isVisible()) {       
        this.hide();
    } else {
        this.show();
    }
}
BuzzWatchPanel.prototype.clearTimeout = function() {
	if (this.timeout!=undefined) {
		clearTimeout(this.timeout);
		this.timeout = undefined;
	}
}
BuzzWatchPanel.prototype.setTimeout = function(duration) {
	this.clearTimeout;
	duration = Number(duration);
	if (duration)
		this.period = duration;
	if (this.period == undefined)
		this.period = 60;
	this.timeout = setTimeout('YAHOO.buzzWatch.panels["' + this.name+ '"].load()' , this.period * 1000);
	//alert ("seting timeout for panel "+this.name+" to "+ this.period);
}

BuzzWatchPanel.prototype.handleSuccess = function(o) {
		if(o.responseText !== undefined){
			this.isEmpty = false;
			this.setTimeout(getMaxAge(o));
			var xotree = new XML.ObjTree();
			var tree = xotree.parseDOM( o.responseXML.documentElement );
			xotree.force_array = ["item"];
			if (tree.rss) {
				var channel = tree.rss.channel;
				var items = tree.rss.channel.item;
			} else if (tree["rdf:RDF"]) {
				var channel = tree["rdf:RDF"].channel;
				var items = tree["rdf:RDF"].item;
			} else {
				alert ("Can't reckon this RSS format!");
				return;
			}
			var channelTitle = document.getElementById(this.name + '.channel.title');
			setValue(channelTitle, channel.title);
			channelTitle.setAttribute("href", channel.link);
			setValue(this.name + '.channel.description', channel.description);
			setValue(this.name + '.channel.copyright', channel.copyright);
			var itemElement = document.getElementById(this.name + '.item');
			var itemsElement = itemElement.parentNode;
			while (itemElement.nextSibling) {
				itemsElement.removeChild(itemElement.nextSibling);
			}
			var savedItem;
			var item;
			var itemTitle;
			var itemDescription;
			if (items) for( var i=0; i< items.length; i++ ) {
				item = items[i];
				itemElement = document.getElementById(this.name + '.item');
				if (i > 0) {
					savedItem = itemElement.cloneNode(true);
				}
				itemTitle = document.getElementById(this.name + '.item.title');
				setValue(itemTitle, item.title);
				itemTitle.setAttribute("href", item.link);
				itemDescription = document.getElementById(this.name + '.item.description');
				setValue(itemDescription, item.description);
				if (i > 0) {
					itemElement.removeAttribute("id");
					itemTitle.removeAttribute("id");
					itemDescription.removeAttribute("id");
					itemsElement.insertBefore(savedItem, itemsElement.firstChild);
					itemsElement.appendChild(itemElement);
				}
			}
		}
	}
BuzzWatchPanel.prototype.handleFailure = function(o) {
		alert("failure");
		this.setTimeout(30);
}
BuzzWatchPanel.prototype.load = function () {
	//alert("loading "+this.name);
	if (this.getUrl != undefined && this.getUrl() != undefined) {
		YAHOO.util.Connect.asyncRequest('GET', this.getUrl(), this.callback);
	}
}