////////////////////////////////////////////////////////////////
// HomeNet JS Core Site Library
// Carvenience Center Module
// (c) 2010, HomeNet Automotive LLC
////////////////////////////////////////////////////////////////

if (typeof HNSITE == 'undefined') HNSITE = {};
if (typeof HNSITE.Modules == 'undefined') HNSITE.Modules = {};

// ***************************************
// Define the modified jQueryUI tabs widget
//  -> widget namespace: ui.carvenience
//  -> source: jquery.ui.carvenience-1.8.5.dev.js
// ***************************************
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// ***************************************
// Define our Modules.Carvenience namespace
// ***************************************
HNSITE.Modules.Carvenience = {};

// <summary>
// Contains configuration data needed to setup and create the Carvenience Center
// </summary>
HNSITE.Modules.Carvenience.Configuration = {
	IsConfigured: false, 
	IsDraggable: true, 
	TabPrefixID: 'ui-tabs-carvenience-', 
	Tabs: [], 
	Me: false
};

// <summary>
// Manually copy objects configuration data for complete control over setup
// Config Settings: 
//    draggable (boolean): Allow Carvenience to be a draggable panel
//    tabs (array of objects): Define tabs to implement in this format...
// 	                           [{name: 'Search', content: '/search.asp', shorthand: 'search'},...]
// </summary>
HNSITE.Modules.Carvenience.Configure = function(config) {
	if (typeof config.draggable == 'boolean')
		this.Configuration.IsDraggable = config.draggable;
	if (typeof config.tabs != 'undefined' && $j.isArray(config.tabs))
		this.Configuration.Tabs = config.tabs;
	else
		alert("The 'tabs' set in Carvenience.Configure is incorrect. Only developers should be seeing this and fixing immediately.");
};

// <summary>
// Properties available for help that provide information on the currently selected tab instead
// of remembering all the jQuery data variable names where its internally stored somewhere
// </summary>
HNSITE.Modules.Carvenience.CurrentTab = {
	Index: null,
	Referrer: null, 
	IsDirty: false,
	ID: function() { return HNSITE.Modules.Carvenience.Configuration.TabPrefixID + String(this.Index + 1); }, 
	Title: function() { return HNSITE.Modules.Carvenience.Configuration.Tabs[this.Index].name; },
	PostPath: function() { return HNSITE.Modules.Carvenience.Configuration.Tabs[this.Index].content; },
	WrapperClass: function() { return 'tab-content-' + HNSITE.Modules.Carvenience.Configuration.Tabs[this.Index].shorthand; }, 
	CustomBindings: function(thisContext) { 
		if (typeof HNSITE.Modules.Carvenience.Configuration.Tabs[this.Index].bindings == 'function') 
			HNSITE.Modules.Carvenience.Configuration.Tabs[this.Index].bindings.call(thisContext);
	}
};

// <summary>
// Displays the Carvenience Center to the user when being called from an element outside of Carvenience (otherwise use Reload)
// Options (specific to each instance of opening): 
//    openTab (string): Tab name ('shorthand' in config) to default to on opening
//    openParams (object): Simple key/pair object converted to a querystring to pass in data (must also set 'openTab')
//    onClose (function): Callback for when Carvenience is closed
//    showLastState (boolean): Show without specifying a tab but instead of resetting we will show the last tab viewed in its same state
// </summary>
HNSITE.Modules.Carvenience.Show = function(options) {
	if (typeof options == 'undefined') options = {};
	var self = this,
		saveOptions = {},
		carvenience = $j("#carvenience"),
		cover = HNSITE.UI.CreatePageCover({ coverOpacity: 0.3 });
	
	// Validate options and store internally the non-instance options needed beyond this method execution
	saveOptions['coverpage'] = cover;
	options.openParams = (typeof options.openParams == 'undefined') ? {} : $j.extend(options.openParams, {r: HNSITE.Utils.Stamp()});
	options.showLastState = (options.showLastState === true) ? true : false;
	if (options.onClose == 'function') saveOptions['onClose'] = options.onClose;
	carvenience.data("carvenience-options", saveOptions);
	
	// Instance initialization options before we display the Carvenience Center each time
	var isFirstExecution = self.Initialize(carvenience),
		openTabID = 0;
	if (options.showLastState === false && typeof options.openTab == 'string') {
		var requestedTab = HNSITE.Data.FilterByProperty(self.Configuration.Tabs, 'shorthand', options.openTab);
		openTabID = (requestedTab.length == 1) ? requestedTab[0].index : 0;
	}
	
	// Display and stay in center of screen until closed (first execution changes tab early to not show an empty box before it first loads something)
	if (options.showLastState === false)
		self.Loader.Show();
	if (isFirstExecution) 
		self.SelectTab(openTabID, options.openParams);
	HNSITE.Element.CenterInViewport(carvenience[0]).fadeIn("fast", function() {
		if (options.showLastState === false && !isFirstExecution)
			self.SelectTab(openTabID, options.openParams);
	});
	$j(window).bind("resize.carvenience", function() {
		HNSITE.Element.CenterInViewport(carvenience[0]);
	});
};

// <summary>
// Load or reload any tab for use while Carvenience Center is already being displayed so that any tab can pass data to itself
// and to each other for creating very interactive tab components. Also note that calling this with 'tabData' completely undefined 
// will reload the same tab with no data to simply refresh its original, default state for "start over" functionality if ever needed.
// Options (specific to each instance of opening): 
//    openTab (string): Defaults to current tab for reloading if undefined. Tab name (its 'shorthand' again) to load different tab.
//    openParams (object): Same simple key/pair object format of a querystring. Can leave empty if simply needing to link to another tab.
// </summary>
HNSITE.Modules.Carvenience.LoadTab = function(tabData) {
	if (this.Configuration.IsConfigured !== true) return;
	// Find which tab we are trying to load or reload
	tabData = tabData || {};
	var loadTabIndex,
		loadTabData = (typeof tabData.openParams != 'object') ? {} : $j.extend(tabData.openParams, {r: HNSITE.Utils.Stamp()});
	if (typeof tabData.openTab != 'string')
		loadTabIndex = this.CurrentTab.Index;
	else {
		var loadTabName = HNSITE.Data.FilterByProperty(this.Configuration.Tabs, 'shorthand', tabData.openTab);
		if (loadTabName.length != 1) return;
		loadTabIndex = loadTabName[0].index;
	}
	// Load the requested tab with optional data to pass in
	this.SelectTab(loadTabIndex, loadTabData);
};

// <summary>
// Interface to the select and load tab functionality to enforce refreshing the content via ajax. Switch to the requested tab  
// or if the request tab is the same as the current tab then reload it.
// </summary>
HNSITE.Modules.Carvenience.SelectTab = function(requestIndex, params) {
	this.UpdateAjaxData(params);
	if (this.CurrentTab.Index != requestIndex || this.CurrentTab.Index == null)
		this.Configuration.Me.carvenience('select', requestIndex);
	else 
		this.Configuration.Me.carvenience('reload', requestIndex);
};

// <summary>
// Uses the configuration data in the documents executer to create and setup the tabs
// as well as perform any binding for static elements that exist
// </summary>
HNSITE.Modules.Carvenience.Initialize = function(carvenience) {
	var self = this;
	if (self.Configuration.IsConfigured === true) return;
	
	// Create the tabs from our configuration
	var tabsMarkup = '';
	$j.each(self.Configuration.Tabs, function(index, tab) {
		tab['index'] = index; // Save index in each tab object for greping
		tabsMarkup += '<li class="tab"><a href="' + tab.content + '">' + tab.name + '</a></li>';
	});
	carvenience.children("ul.tabs-row").first().html(tabsMarkup);
	
	// Setup the tabs functionality and events
	self.Configuration.Me = carvenience.carvenience({
		idPrefix: self.Configuration.TabPrefixID, 
		panelTemplate: '<div class="carvenience-tab-panel"></div>', 
		selected: -1, 
		cache: false, 
		fx: { opacity: 'toggle', duration: 350 }, 
		ajaxOptions: {
			type: 'GET', 
			global: false, 
			data: {}, 
			error: function(xhr, status, index, anchor) {
				$j(anchor.hash).html("Carvenience Center couldn't load this tab. Please try again and if the problem still occurs please alert us.");
			}
		}, 
		select: function(event, ui) {
			self.CurrentTab.Referrer = self.CurrentTab.Index;
			return true;
		}, 
		load: function(event, ui) {
			// Add our inner tab structure to wrap each content file consistently
			self.CurrentTab.Index = ui.index;
			var tabContext = $j('#' + self.CurrentTab.ID());
			tabContext.wrapInner("<div class='" + self.CurrentTab.WrapperClass() + " container'></div>");
			// Reset the ajax data each time after loaded
			self.UpdateAjaxData({});
			// Bind here after content loads but before we show it to user
			HNSITE.UI.Initializer(tabContext[0]);
			self.CurrentTab.CustomBindings(tabContext[0]);
			if (self.Loader.IsLoading() === true) 
				self.Loader.Hide();
		}, 
		show: function(event, ui) {
			// Empty contents of the referring tab if applicable
			if (self.CurrentTab.Referrer != null && self.CurrentTab.Referrer != self.CurrentTab.Index)
				$j('#' + self.Configuration.TabPrefixID + String(self.CurrentTab.Referrer + 1)).empty();
			// Trigger a global event to allow anything to bind to when the panel is visible
			$j.event.trigger('Carvenience_Show');
		}
	});
	
	// Modify settings based on configuration
	if (self.Configuration.IsDraggable === true)
		carvenience.draggable({ handle: ".tabs-handle" });
	
	// Bind events to static close button
    carvenience.children(".close-button")
		.hover(function() { $j(this).toggleClass("ui-state-hover"); }, function() { $j(this).toggleClass("ui-state-hover"); })
		.click(function() { HNSITE.Modules.Carvenience.Close(); });
	
	// ** Create our live events for detecting special content markup to help create rich, interactive tab content files **
	// Usage: add class 'reload-tab' to an element to let it reload the current tab in its default state
	$j("#carvenience .carvenience-tab-panel").delegate(".reload-tab", "click", function() {
		self.LoadTab();
		return false;
	});
	// Usage: add class 'load-tab' to anchors and set the href to one of three options available shown in the below examples
	//   Ex 1: '<a class="load-tab" href="javascript:void(0);" rel="contact">' loads the contact tab (using shortcode) without any data
	//   Ex 2: '<a class="load-tab" href="javascript:void(0);" rel="search?type=used">' loads the search tab (using shortcode) with querystring as data to pass
	//   Ex 3: '<a class="load-tab" href="javascript:void(0);" rel="?type=used">' reloads the current tab with querystring as data to use
	$j("#carvenience").delegate(".load-tab", "click", function() {
		var tabRequest = $j(this).attr("rel").trim(),
			qsPosition = tabRequest.indexOf('?');
		if (qsPosition >= 0) {
			var tabParams = tabRequest.substring(qsPosition + 1);
			if (qsPosition === 0) 
				self.LoadTab({ openParams: HNSITE.Data.ParseQueryString(tabParams) });
			else {
				var tabShortcode = tabRequest.substring(0, qsPosition);
				if (HNSITE.Data.FilterByProperty(self.Configuration.Tabs, 'shorthand', tabShortcode).length) {
					self.LoadTab({
						openTab: tabShortcode, 
						openParams: HNSITE.Data.ParseQueryString(tabParams)
					});
				}
			}
		}
		else {
			if (HNSITE.UI.Validation.Regex.QuickTests.IsCharacters(tabRequest))
				self.LoadTab({ openTab: tabRequest });
		}
		return false;
	});
	// Usage: add class 'load-within-tab' to anchors in content files to open the link within the tab
	$j("#carvenience").delegate(".load-within-tab", "click", function() {
		$j('#' + self.CurrentTab.ID()).load($j(this).attr("href"));
		return false;
	});
	
	// Flag as having been configured so we dont reinitialize
	self.Configuration.IsConfigured = true;
	return true;
};

// <summary>
// Update the tabs ajax options with a new data object in key/pair values
// </summary>
HNSITE.Modules.Carvenience.UpdateAjaxData = function(newData) {
	if (typeof newData != 'object') newData = {};
	newData = $j.extend(newData, { r: HNSITE.Utils.Stamp() });
	var updatedAjax = $j.extend(this.Configuration.Me.carvenience('option', 'ajaxOptions'), { data: newData });
	this.Configuration.Me.carvenience('option', 'ajaxOptions', updatedAjax);
};

// <summary>
// Close the Carvenience Center and execute optional callback
// </summary>
HNSITE.Modules.Carvenience.Close = function() {
	if (!this.IsShown()) return;
	
	var carvenience = $j("#carvenience"),
		options = this.GetOptions();
	
	// Execute optional onClose callback
	if (options && typeof options.onClose == 'function')
		options.onClose.call(carvenience[0]);
	
	// Hide form again and remove cover
	carvenience.fadeOut("fast", function() {
		options.coverpage.hide().remove();
		$j(window).unbind("resize.cover").unbind("resize.carvenience");
	});
};

// <summary>
// Controls the loading screen between tab transitions on first opening the Carvenience Center panel. Helps to cover the
// transitioning effect due to the event ordering of displays that we need and also helps hide initialization visual oddities from
// some components like accordians while they transform.
// </summary>
HNSITE.Modules.Carvenience.Loader = (function() {
	var _loader;
	var GetLoader = function() { 
		if (typeof(_loader) == 'undefined')
			_loader = $j("#carvenience > .tab-loading-screen").first();
	};
	var _isLoading = false;
	var IsLoading = function() { return _isLoading; };
	var Show = function() {
		GetLoader();
		if (_loader.css("display") == 'none') {
			_isLoading = true;
			_loader.css("opacity", "0.90").show();
		}
	};
	var Hide = function() {
		GetLoader();
		if (_loader.css("display") == 'block') {
			_isLoading = false;
			_loader.hide().css("opacity", "1.00");
		}
	};
	return {
		Show: Show, 
		Hide: Hide, 
		IsLoading: IsLoading
	};
})();

HNSITE.Modules.Carvenience.IsShown = function() {
	return ($j("#carvenience").css("display") == 'block');
};

HNSITE.Modules.Carvenience.GetOptions = function() {
	return $j("#carvenience").data("carvenience-options");
};