a:15:{s:9:"#provides";s:9:"dojo.back";s:9:"#resource";s:7:"back.js";s:9:"dojo.back";a:2:{s:4:"type";s:6:"Object";s:7:"summary";s:36:"Browser history management resources";}s:20:"window.location.hash";a:1:{s:7:"summary";s:0:"";}s:17:"dojo.back.getHash";a:1:{s:7:"summary";s:0:"";}s:17:"dojo.back.setHash";a:1:{s:7:"summary";s:0:"";}s:16:"dojo.back.goBack";a:1:{s:7:"summary";s:0:"";}s:19:"dojo.back.goForward";a:1:{s:7:"summary";s:0:"";}s:22:"historyIframe.location";a:1:{s:7:"summary";s:0:"";}s:14:"dojo.back.init";a:4:{s:4:"type";s:8:"Function";s:6:"source";s:349:"		if(dojo.byId("dj_history")){ return; } // prevent reinit
		var src = dojo.config["dojoIframeHistoryUrl"] || dojo.moduleUrl("dojo", "resources/iframe_history.html");
		document.write('<iframe style="border:0;width:1px;height:1px;position:absolute;visibility:hidden;bottom:0;right:0;" name="dj_history" id="dj_history" src="' + src + '"></iframe>');";s:7:"summary";s:137:"Initializes the undo stack. This must be called from a &lt;script&gt;
block that lives inside the &lt;body&gt; tag to prevent bugs on IE.";s:7:"returns";s:14:"prevent reinit";}s:25:"dojo.back.setInitialState";a:5:{s:4:"type";s:8:"Function";s:10:"parameters";a:1:{s:4:"args";a:2:{s:4:"type";s:6:"Object";s:7:"summary";s:70:"See the addToHistory() function for the list of valid args properties.";}}s:6:"source";s:61:"		initialState = createState(initialHref, args, initialHash);";s:7:"summary";s:79:"Sets the state object and back callback for the very first page
that is loaded.";s:11:"description";s:113:"It is recommended that you call this method as part of an event
listener that is registered via dojo.addOnLoad().";}s:15:"dojo.__backArgs";a:6:{s:4:"type";s:8:"Function";s:10:"parameters";a:1:{s:6:"kwArgs";a:1:{s:4:"type";s:0:"";}}s:6:"source";s:6151:"dojo.provide("dojo.back");



       
dojo.back = {
	// summary: Browser history management resources
}

       




(function(){ 
	var back = dojo.back;


	// everyone deals with encoding the hash slightly differently


	function getHash(){ 
		var h = window.location.hash;
		if(h.charAt(0) == "#"){ h = h.substring(1); }
		return dojo.isMozilla ? h : decodeURIComponent(h); 
	}

	
	function setHash(h){
		if(!h){ h = ""; }
		window.location.hash = encodeURIComponent(h);
		historyCounter = history.length;
	}

	
	// if we're in the test for these methods, expose them on dojo.back. ok'd with alex.
	if(dojo.exists("tests.back-hash")){
		back.getHash = getHash;
		back.setHash = setHash;		
	}

	
	var initialHref = (typeof(window) !== "undefined") ? window.location.href : "";
	var initialHash = (typeof(window) !== "undefined") ? getHash() : "";
	var initialState = null;


	var locationTimer = null;
	var bookmarkAnchor = null;
	var historyIframe = null;
	var forwardStack = [];
	var historyStack = [];
	var moveForward = false;
	var changingUrl = false;
	var historyCounter;


	function handleBackButton(){
		//summary: private method. Do not call this directly.


		//The "current" page is always at the top of the history stack.
		var current = historyStack.pop();
		if(!current){ return; }
		var last = historyStack[historyStack.length-1];
		if(!last && historyStack.length == 0){
			last = initialState;
		}
		if(last){
			if(last.kwArgs["back"]){
				last.kwArgs["back"]();
			}else if(last.kwArgs["backButton"]){
				last.kwArgs["backButton"]();
			}else if(last.kwArgs["handle"]){
				last.kwArgs.handle("back");
			}
		}
		forwardStack.push(current);
	}


	back.goBack = handleBackButton;


	function handleForwardButton(){
		//summary: private method. Do not call this directly.
		var last = forwardStack.pop();
		if(!last){ return; }
		if(last.kwArgs["forward"]){
			last.kwArgs.forward();
		}else if(last.kwArgs["forwardButton"]){
			last.kwArgs.forwardButton();
		}else if(last.kwArgs["handle"]){
			last.kwArgs.handle("forward");
		}
		historyStack.push(last);
	}


	back.goForward = handleForwardButton;


	function createState(url, args, hash){
		//summary: private method. Do not call this directly.
		return {"url": url, "kwArgs": args, "urlHash": hash};	//Object
	}


	function getUrlQuery(url){
		//summary: private method. Do not call this directly.
		var segments = url.split("?");
		if(segments.length < 2){
			return null; //null
		}
		else{
			return segments[1]; //String
		}
	}

	
	function loadIframeHistory(){
		//summary: private method. Do not call this directly.
		var url = (dojo.config["dojoIframeHistoryUrl"] || dojo.moduleUrl("dojo", "resources/iframe_history.html")) + "?" + (new Date()).getTime();
		moveForward = true;
        if(historyIframe){
		    dojo.isWebKit ? historyIframe.location = url : window.frames[historyIframe.name].location = url;
        }else{
            //console.warn("dojo.back: Not initialised. You need to call dojo.back.init() from a <script> block that lives inside the <body> tag.");
        }
		return url; //String
	}


	function checkLocation(){
		if(!changingUrl){
			var hsl = historyStack.length;

			
			var hash = getHash();


			if((hash === initialHash||window.location.href == initialHref)&&(hsl == 1)){
				// FIXME: could this ever be a forward button?
				// we can't clear it because we still need to check for forwards. Ugg.
				// clearInterval(this.locationTimer);
				handleBackButton();
				return;
			}

			
			// first check to see if we could have gone forward. We always halt on
			// a no-hash item.
			if(forwardStack.length > 0){
				if(forwardStack[forwardStack.length-1].urlHash === hash){
					handleForwardButton();
					return;
				}
			}

	
			// ok, that didn't work, try someplace back in the history stack
			if((hsl >= 2)&&(historyStack[hsl-2])){
				if(historyStack[hsl-2].urlHash === hash){
					handleBackButton();
					return;
				}
			}

			
			if(dojo.isSafari && dojo.isSafari < 3){
				var hisLen = history.length;
				if(hisLen > historyCounter) handleForwardButton();
				else if(hisLen < historyCounter) handleBackButton();
			  historyCounter = hisLen;
			}
		}
	};

	
	back.init = function(){
		//summary: Initializes the undo stack. This must be called from a <script> 
		//         block that lives inside the <body> tag to prevent bugs on IE.
		if(dojo.byId("dj_history")){ return; } // prevent reinit
		var src = dojo.config["dojoIframeHistoryUrl"] || dojo.moduleUrl("dojo", "resources/iframe_history.html");
		document.write('<iframe style="border:0;width:1px;height:1px;position:absolute;visibility:hidden;bottom:0;right:0;" name="dj_history" id="dj_history" src="' + src + '"></iframe>');
	};


	back.setInitialState = function(/*Object*/args){
		//summary: 
		//		Sets the state object and back callback for the very first page
		//		that is loaded.
		//description:
		//		It is recommended that you call this method as part of an event
		//		listener that is registered via dojo.addOnLoad().
		//args: Object
		//		See the addToHistory() function for the list of valid args properties.
		initialState = createState(initialHref, args, initialHash);
	};


	//FIXME: Make these doc comments not be awful. At least they're not wrong.
	//FIXME: Would like to support arbitrary back/forward jumps. Have to rework iframeLoaded among other things.
	//FIXME: is there a slight race condition in moz using change URL with the timer check and when
	//       the hash gets set? I think I have seen a back/forward call in quick succession, but not consistent.



	

	       
	dojo.__backArgs = function(kwArgs){
		// back: Function?
		//		A function to be called when this state is reached via the user
		//		clicking the back button.
		//	forward: Function?
		//		Upon return to this state from the "back, forward" combination
		//		of navigation steps, this function will be called. Somewhat
		//		analgous to the semantic of an "onRedo" event handler.
		//	changeUrl: Boolean?|String?
		//		Boolean indicating whether or not to create a unique hash for
		//		this state. If a string is passed instead, it is used as the
		//		hash.";s:7:"returns";s:33:"Object|null|String|prevent reinit";s:7:"private";b:1;s:7:"summary";s:0:"";}s:22:"dojo.back.addToHistory";a:6:{s:4:"type";s:8:"Function";s:10:"parameters";a:1:{s:4:"args";a:1:{s:4:"type";s:15:"dojo.__backArgs";}}s:6:"source";s:12493:"dojo.provide("dojo.back");



       
dojo.back = {
	// summary: Browser history management resources
}

       




(function(){ 
	var back = dojo.back;


	// everyone deals with encoding the hash slightly differently


	function getHash(){ 
		var h = window.location.hash;
		if(h.charAt(0) == "#"){ h = h.substring(1); }
		return dojo.isMozilla ? h : decodeURIComponent(h); 
	}

	
	function setHash(h){
		if(!h){ h = ""; }
		window.location.hash = encodeURIComponent(h);
		historyCounter = history.length;
	}

	
	// if we're in the test for these methods, expose them on dojo.back. ok'd with alex.
	if(dojo.exists("tests.back-hash")){
		back.getHash = getHash;
		back.setHash = setHash;		
	}

	
	var initialHref = (typeof(window) !== "undefined") ? window.location.href : "";
	var initialHash = (typeof(window) !== "undefined") ? getHash() : "";
	var initialState = null;


	var locationTimer = null;
	var bookmarkAnchor = null;
	var historyIframe = null;
	var forwardStack = [];
	var historyStack = [];
	var moveForward = false;
	var changingUrl = false;
	var historyCounter;


	function handleBackButton(){
		//summary: private method. Do not call this directly.


		//The "current" page is always at the top of the history stack.
		var current = historyStack.pop();
		if(!current){ return; }
		var last = historyStack[historyStack.length-1];
		if(!last && historyStack.length == 0){
			last = initialState;
		}
		if(last){
			if(last.kwArgs["back"]){
				last.kwArgs["back"]();
			}else if(last.kwArgs["backButton"]){
				last.kwArgs["backButton"]();
			}else if(last.kwArgs["handle"]){
				last.kwArgs.handle("back");
			}
		}
		forwardStack.push(current);
	}


	back.goBack = handleBackButton;


	function handleForwardButton(){
		//summary: private method. Do not call this directly.
		var last = forwardStack.pop();
		if(!last){ return; }
		if(last.kwArgs["forward"]){
			last.kwArgs.forward();
		}else if(last.kwArgs["forwardButton"]){
			last.kwArgs.forwardButton();
		}else if(last.kwArgs["handle"]){
			last.kwArgs.handle("forward");
		}
		historyStack.push(last);
	}


	back.goForward = handleForwardButton;


	function createState(url, args, hash){
		//summary: private method. Do not call this directly.
		return {"url": url, "kwArgs": args, "urlHash": hash};	//Object
	}


	function getUrlQuery(url){
		//summary: private method. Do not call this directly.
		var segments = url.split("?");
		if(segments.length < 2){
			return null; //null
		}
		else{
			return segments[1]; //String
		}
	}

	
	function loadIframeHistory(){
		//summary: private method. Do not call this directly.
		var url = (dojo.config["dojoIframeHistoryUrl"] || dojo.moduleUrl("dojo", "resources/iframe_history.html")) + "?" + (new Date()).getTime();
		moveForward = true;
        if(historyIframe){
		    dojo.isWebKit ? historyIframe.location = url : window.frames[historyIframe.name].location = url;
        }else{
            //console.warn("dojo.back: Not initialised. You need to call dojo.back.init() from a <script> block that lives inside the <body> tag.");
        }
		return url; //String
	}


	function checkLocation(){
		if(!changingUrl){
			var hsl = historyStack.length;

			
			var hash = getHash();


			if((hash === initialHash||window.location.href == initialHref)&&(hsl == 1)){
				// FIXME: could this ever be a forward button?
				// we can't clear it because we still need to check for forwards. Ugg.
				// clearInterval(this.locationTimer);
				handleBackButton();
				return;
			}

			
			// first check to see if we could have gone forward. We always halt on
			// a no-hash item.
			if(forwardStack.length > 0){
				if(forwardStack[forwardStack.length-1].urlHash === hash){
					handleForwardButton();
					return;
				}
			}

	
			// ok, that didn't work, try someplace back in the history stack
			if((hsl >= 2)&&(historyStack[hsl-2])){
				if(historyStack[hsl-2].urlHash === hash){
					handleBackButton();
					return;
				}
			}

			
			if(dojo.isSafari && dojo.isSafari < 3){
				var hisLen = history.length;
				if(hisLen > historyCounter) handleForwardButton();
				else if(hisLen < historyCounter) handleBackButton();
			  historyCounter = hisLen;
			}
		}
	};

	
	back.init = function(){
		//summary: Initializes the undo stack. This must be called from a <script> 
		//         block that lives inside the <body> tag to prevent bugs on IE.
		if(dojo.byId("dj_history")){ return; } // prevent reinit
		var src = dojo.config["dojoIframeHistoryUrl"] || dojo.moduleUrl("dojo", "resources/iframe_history.html");
		document.write('<iframe style="border:0;width:1px;height:1px;position:absolute;visibility:hidden;bottom:0;right:0;" name="dj_history" id="dj_history" src="' + src + '"></iframe>');
	};


	back.setInitialState = function(/*Object*/args){
		//summary: 
		//		Sets the state object and back callback for the very first page
		//		that is loaded.
		//description:
		//		It is recommended that you call this method as part of an event
		//		listener that is registered via dojo.addOnLoad().
		//args: Object
		//		See the addToHistory() function for the list of valid args properties.
		initialState = createState(initialHref, args, initialHash);
	};


	//FIXME: Make these doc comments not be awful. At least they're not wrong.
	//FIXME: Would like to support arbitrary back/forward jumps. Have to rework iframeLoaded among other things.
	//FIXME: is there a slight race condition in moz using change URL with the timer check and when
	//       the hash gets set? I think I have seen a back/forward call in quick succession, but not consistent.



	

	       
	dojo.__backArgs = function(kwArgs){
		// back: Function?
		//		A function to be called when this state is reached via the user
		//		clicking the back button.
		//	forward: Function?
		//		Upon return to this state from the "back, forward" combination
		//		of navigation steps, this function will be called. Somewhat
		//		analgous to the semantic of an "onRedo" event handler.
		//	changeUrl: Boolean?|String?
		//		Boolean indicating whether or not to create a unique hash for
		//		this state. If a string is passed instead, it is used as the
		//		hash.
	}

	       


	back.addToHistory = function(/*dojo.__backArgs*/ args){
		//	summary: 
		//		adds a state object (args) to the history list. 
		//	description:
		//		To support getting back button notifications, the object
		//		argument should implement a function called either "back",
		//		"backButton", or "handle". The string "back" will be passed as
		//		the first and only argument to this callback.
		//	
		//		To support getting forward button notifications, the object
		//		argument should implement a function called either "forward",
		//		"forwardButton", or "handle". The string "forward" will be
		//		passed as the first and only argument to this callback.
		//
		//		If you want the browser location string to change, define "changeUrl" on the object. If the
		//		value of "changeUrl" is true, then a unique number will be appended to the URL as a fragment
		//		identifier (http://some.domain.com/path#uniquenumber). If it is any other value that does
		//		not evaluate to false, that value will be used as the fragment identifier. For example,
		//		if changeUrl: 'page1', then the URL will look like: http://some.domain.com/path#page1
		//
	 	//	example:
		//		|	dojo.back.addToHistory({
		//		|		back: function(){ console.log('back pressed'); },
		//		|		forward: function(){ console.log('forward pressed'); },
		//		|		changeUrl: true
		//		|	});


		//	BROWSER NOTES:
		//  Safari 1.2: 
		//	back button "works" fine, however it's not possible to actually
		//	DETECT that you've moved backwards by inspecting window.location.
		//	Unless there is some other means of locating.
		//	FIXME: perhaps we can poll on history.length?
		//	Safari 2.0.3+ (and probably 1.3.2+):
		//	works fine, except when changeUrl is used. When changeUrl is used,
		//	Safari jumps all the way back to whatever page was shown before
		//	the page that uses dojo.undo.browser support.
		//	IE 5.5 SP2:
		//	back button behavior is macro. It does not move back to the
		//	previous hash value, but to the last full page load. This suggests
		//	that the iframe is the correct way to capture the back button in
		//	these cases.
		//	Don't test this page using local disk for MSIE. MSIE will not create 
		//	a history list for iframe_history.html if served from a file: URL. 
		//	The XML served back from the XHR tests will also not be properly 
		//	created if served from local disk. Serve the test pages from a web 
		//	server to test in that browser.
		//	IE 6.0:
		//	same behavior as IE 5.5 SP2
		//	Firefox 1.0+:
		//	the back button will return us to the previous hash on the same
		//	page, thereby not requiring an iframe hack, although we do then
		//	need to run a timer to detect inter-page movement.


		//If addToHistory is called, then that means we prune the
		//forward stack -- the user went back, then wanted to
		//start a new forward path.
		forwardStack = []; 


		var hash = null;
		var url = null;
		if(!historyIframe){
			if(dojo.config["useXDomain"] && !dojo.config["dojoIframeHistoryUrl"]){
				console.warn("dojo.back: When using cross-domain Dojo builds,"
					+ " please save iframe_history.html to your domain and set djConfig.dojoIframeHistoryUrl"
					+ " to the path on your domain to iframe_history.html");
			}
			historyIframe = window.frames["dj_history"];
		}
		if(!bookmarkAnchor){
			bookmarkAnchor = dojo.create("a", {style: {display: "none"}}, dojo.body());
		}
		if(args["changeUrl"]){
			hash = ""+ ((args["changeUrl"]!==true) ? args["changeUrl"] : (new Date()).getTime());

			
			//If the current hash matches the new one, just replace the history object with
			//this new one. It doesn't make sense to track different state objects for the same
			//logical URL. This matches the browser behavior of only putting in one history
			//item no matter how many times you click on the same #hash link, at least in Firefox
			//and Safari, and there is no reliable way in those browsers to know if a #hash link
			//has been clicked on multiple times. So making this the standard behavior in all browsers
			//so that dojo.back's behavior is the same in all browsers.
			if(historyStack.length == 0 && initialState.urlHash == hash){
				initialState = createState(url, args, hash);
				return;
			}else if(historyStack.length > 0 && historyStack[historyStack.length - 1].urlHash == hash){
				historyStack[historyStack.length - 1] = createState(url, args, hash);
				return;
			}


			changingUrl = true;
			setTimeout(function() { 
					setHash(hash); 
					changingUrl = false; 					
				}, 1);
			bookmarkAnchor.href = hash;

			
			if(dojo.isIE){
				url = loadIframeHistory();


				var oldCB = args["back"]||args["backButton"]||args["handle"];


				//The function takes handleName as a parameter, in case the
				//callback we are overriding was "handle". In that case,
				//we will need to pass the handle name to handle.
				var tcb = function(handleName){
					if(getHash() != ""){
						setTimeout(function() { setHash(hash); }, 1);
					}
					//Use apply to set "this" to args, and to try to avoid memory leaks.
					oldCB.apply(this, [handleName]);
				};

		
				//Set interceptor function in the right place.
				if(args["back"]){
					args.back = tcb;
				}else if(args["backButton"]){
					args.backButton = tcb;
				}else if(args["handle"]){
					args.handle = tcb;
				}

		
				var oldFW = args["forward"]||args["forwardButton"]||args["handle"];

		
				//The function takes handleName as a parameter, in case the
				//callback we are overriding was "handle". In that case,
				//we will need to pass the handle name to handle.
				var tfw = function(handleName){
					if(getHash() != ""){
						setHash(hash);
					}
					if(oldFW){ // we might not actually have one
						//Use apply to set "this" to args, and to try to avoid memory leaks.
						oldFW.apply(this, [handleName]);
					}
				};


				//Set interceptor function in the right place.
				if(args["forward"]){
					args.forward = tfw;
				}else if(args["forwardButton"]){
					args.forwardButton = tfw;
				}else if(args["handle"]){
					args.handle = tfw;
				}


			}else if(!dojo.isIE){
				// start the timer
				if(!locationTimer){
					locationTimer = setInterval(checkLocation, 200);
				}

				
			}
		}else{
			url = loadIframeHistory();
		}


		historyStack.push(createState(url, args, hash));";s:7:"summary";s:47:"adds a state object (args) to the history list.";s:11:"description";s:912:"To support getting back button notifications, the object
argument should implement a function called either "back",
"backButton", or "handle". The string "back" will be passed as
the first and only argument to this callback.

To support getting forward button notifications, the object
argument should implement a function called either "forward",
"forwardButton", or "handle". The string "forward" will be
passed as the first and only argument to this callback.

If you want the browser location string to change, define "changeUrl" on the object. If the
value of "changeUrl" is true, then a unique number will be appended to the URL as a fragment
identifier (http://some.domain.com/path#uniquenumber). If it is any other value that does
not evaluate to false, that value will be used as the fragment identifier. For example,
if changeUrl: 'page1', then the URL will look like: http://some.domain.com/path#page1";s:7:"returns";s:33:"Object|null|String|prevent reinit";}s:23:"dojo.back._iframeLoaded";a:5:{s:4:"type";s:8:"Function";s:10:"parameters";a:2:{s:3:"evt";a:1:{s:4:"type";s:0:"";}s:6:"ifrLoc";a:1:{s:4:"type";s:0:"";}}s:6:"source";s:731:"		var query = getUrlQuery(ifrLoc.href);
		if(query == null){ 
			// alert("iframeLoaded");
			// we hit the end of the history, so we should go back
			if(historyStack.length == 1){
				handleBackButton();
			}
			return;
		}
		if(moveForward){
			// we were expecting it, so it's not either a forward or backward movement
			moveForward = false;
			return;
		}

	
		//Check the back stack first, since it is more likely.
		//Note that only one step back or forward is supported.
		if(historyStack.length >= 2 && query == getUrlQuery(historyStack[historyStack.length-2].url)){
			handleBackButton();
		}else if(forwardStack.length > 0 && query == getUrlQuery(forwardStack[forwardStack.length-1].url)){
			handleForwardButton();
		}";s:7:"summary";s:42:"private method. Do not call this directly.";s:7:"private";b:1;}s:4:"dojo";a:2:{s:4:"type";s:6:"Object";s:7:"summary";s:0:"";}}