Support for offline

css/jgrowl.css

@@ -0,0 +1,131 @@
+
+div.jGrowl {
+	z-index: 			1000;
+	color: 				#fff;
+	font-size: 			12px;
+}
+
+/** Special IE6 Style Positioning **/
+div.ie6 {
+	position: 			absolute;
+}
+
+div.ie6.top-right {
+	right: 				auto;
+	bottom: 			auto;
+	left: 				expression( ( 0 - jGrowl.offsetWidth + ( document.documentElement.clientWidth ? document.documentElement.clientWidth : document.body.clientWidth ) + ( ignoreMe2 = document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft ) ) + 'px' );
+	top: 				expression( ( 0 + ( ignoreMe = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop ) ) + 'px' );
+}
+
+div.ie6.top-left {
+	left: 				expression( ( 0 + ( ignoreMe2 = document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft ) ) + 'px' );
+	top: 				expression( ( 0 + ( ignoreMe = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop ) ) + 'px' );
+}
+
+div.ie6.bottom-right {
+	left: 				expression( ( 0 - jGrowl.offsetWidth + ( document.documentElement.clientWidth ? document.documentElement.clientWidth : document.body.clientWidth ) + ( ignoreMe2 = document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft ) ) + 'px' );
+	top: 				expression( ( 0 - jGrowl.offsetHeight + ( document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body.clientHeight ) + ( ignoreMe = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop ) ) + 'px' );
+}
+
+div.ie6.bottom-left {
+	left: 				expression( ( 0 + ( ignoreMe2 = document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft ) ) + 'px' );
+	top: 				expression( ( 0 - jGrowl.offsetHeight + ( document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body.clientHeight ) + ( ignoreMe = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop ) ) + 'px' );
+}
+
+div.ie6.center {
+	left: 				expression( ( 0 + ( ignoreMe2 = document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft ) ) + 'px' );
+	top: 				expression( ( 0 + ( ignoreMe = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop ) ) + 'px' );
+	width: 				100%;
+}
+
+/** Normal Style Positions **/
+div.jGrowl {
+	position:			absolute;
+}
+
+body > div.jGrowl {
+	position:			fixed;
+}
+
+div.jGrowl.top-left {
+	left: 				0px;
+	top: 				0px;
+}
+
+div.jGrowl.top-right {
+	right: 				0px;
+	top: 				0px;
+}
+
+div.jGrowl.bottom-left {
+	left: 				0px;
+	bottom:				0px;
+}
+
+div.jGrowl.bottom-right {
+	right: 				0px;
+	bottom: 			0px;
+}
+
+div.jGrowl.center {
+	top: 				0px;
+	width: 				50%;
+	left: 				25%;
+}
+
+/** Cross Browser Styling **/
+div.center div.jGrowl-notification, div.center div.jGrowl-closer {
+	margin-left: 		auto;
+	margin-right: 		auto;
+}
+
+div.jGrowl div.jGrowl-notification, div.jGrowl div.jGrowl-closer {
+	background-color: 		#777;
+	zoom: 					1;
+	width: 					235px;
+	padding: 				10px;
+	margin-top: 			5px;
+	margin-bottom: 			5px;
+	text-align: 			left;
+	display: 				none;
+	-moz-border-radius: 	5px;
+	-webkit-border-radius:	5px;
+}
+
+div.jGrowl div.jGrowl-notification {
+	min-height: 			40px;
+}
+
+div.jGrowl div.jGrowl-notification,
+div.jGrowl div.jGrowl-closer {
+	margin: 				10px;
+}
+
+div.jGrowl div.jGrowl-notification div.jGrowl-header {
+	font-weight: 			bold;
+	font-size:				.85em;
+}
+
+div.jGrowl div.jGrowl-notification div.jGrowl-close {
+	z-index:				99;
+	float: 					right;
+	font-weight: 			bold;
+	font-size: 				1em;
+	cursor:					pointer;
+}
+
+div.jGrowl div.jGrowl-closer {
+	padding-top: 			4px;
+	padding-bottom: 		4px;
+	cursor: 				pointer;
+	font-size:				.9em;
+	font-weight: 			bold;
+	text-align: 			center;
+}
+
+/** Hide jGrowl when printing **/
+@media print {
+	div.jGrowl {
+		display: 			none;
+	}
+}

css/main.css

@@ -19,7 +19,7 @@ div, span, a, ul, li, textarea, input {
     text-shadow: none !important;
 }
 
-.btn, .navbar-inner, .well, textarea, input {
+.btn, .navbar-inner, .ui-layout-east, .ui-layout-south, textarea, input {
     border: none !important;
 }
 
@@ -51,11 +51,11 @@ div, span, a, ul, li, textarea, input {
 .dropdown-menu > .active > a,
 .dropdown-menu > .active > a:hover,
 .dropdown-menu > .active > a:focus {
-  background-color: #999;
+  background-color: #888;
 }
 
 .btn-primary {
-  background-color: #888;
+  background-color: #777;
 }
 
 .btn-primary:hover,
@@ -64,7 +64,7 @@ div, span, a, ul, li, textarea, input {
 .btn-primary.active,
 .btn-primary.disabled,
 .btn-primary[disabled] {
-  background-color: #999;
+  background-color: #888;
 }
 
 .btn-group {
@@ -232,4 +232,14 @@ hr {
 	border-top: 5px solid transparent;
 	border-right: 5px solid #525252;
 	border-left: 0;
+}
+
+#message-container {
+	position: absolute;
+	right: 20px;
+	bottom: 20px;
+	width: 200px;
+	background-color: #eee;
+    margin: 0;
+    font-weight: bold;
 }

index.html

@@ -8,23 +8,20 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <!-- Bootstrap -->
 <link href="css/bootstrap.css" rel="stylesheet" media="screen">
+<link href="css/jgrowl.css" rel="stylesheet" media="screen">
 <link href="css/main.css" rel="stylesheet" media="screen">
 <script type="text/javascript" src="js/jquery.js"></script>
+<script type="text/javascript" src="js/jquery.jgrowl.js"></script>
 <script type="text/javascript" src="js/jquery-ui.custom.js"></script>
 <script type="text/javascript" src="js/jquery.layout.js"></script>
 <script type="text/javascript" src="js/bootstrap.js"></script>
 <script type="text/javascript" src="js/Markdown.Converter.js"></script>
 <script type="text/javascript" src="js/Markdown.Sanitizer.js"></script>
 <script type="text/javascript" src="js/Markdown.Editor.js"></script>
-<script type="text/javascript" src="js/gdrive.js"></script>
 <script type="text/javascript" src="js/main.js"></script>
-<script type="text/javascript">
+<script type="text/javascript" src="js/async-runner.js"></script>
-	function handleClientLoad() {
+<script type="text/javascript" src="js/gdrive.js"></script>
-		window.setTimeout(gdrive.init, 1);
+<script type="text/javascript" src="js/custo.js"></script>
-	}
-</script>
-<script type="text/javascript"
-	src="https://apis.google.com/js/client.js?onload=handleClientLoad"></script>
 <script>
 	(function(i, s, o, g, r, a, m) {
 		i['GoogleAnalyticsObject'] = r;
@@ -92,6 +89,9 @@
 	<textarea id="wmd-input" class="ui-layout-center"></textarea>
 	<div class="ui-layout-east"></div>
 	<div class="ui-layout-south"></div>
+	
+	<div id="message-container" class="well hide">
+	</div>
 
 	<div id="modal-remove-file-confirm" class="modal hide">
 		<div class="modal-header">

js/async-runner.js

@@ -0,0 +1,70 @@
+/**
+ *  Used to run any asynchronous tasks sequentially (ajax mainly)
+ *  An asynchronous task must be created with:
+ *  - a run() function (required) that may call success() or error()
+ *  - a onSuccess() function (optional)
+ *  - a onError() function (optional)
+ */
+var asyncTaskRunner = (function() {
+	var asyncTaskRunner = {};
+	
+	var asyncTaskQueue = [];
+	var currentTask = undefined;
+	var currentTaskStartTime = new Date().getTime();
+	
+	// Run the next task in the queue if any and no other is running
+	asyncTaskRunner.runTask = function() {
+		
+		// If there is a task currently running
+		if(currentTask !== undefined) {
+			// If the current task takes too long
+			if(currentTaskStartTime + 30000 < currentTime) {
+				currentTask.error();
+			}
+			return;
+		}
+		// If no task in the queue
+		if(asyncTaskQueue.length === 0) {
+			return;
+		}
+		currentTask = asyncTaskQueue.shift();
+		currentTaskStartTime = currentTime;
+		showWorkingIndicator(true);
+		
+		// Set task attributes and functions
+		currentTask.finished = false;
+		currentTask.finish = function() {
+			this.finished = true;
+			showWorkingIndicator(false);
+			currentTask = undefined;
+			asyncTaskRunner.runTask();
+		};
+		currentTask.success = function() {
+			if(this.finished === true) {
+				return;
+			}
+			if(this.onSuccess) {
+				this.onSuccess();
+			}
+			this.finish();
+		};
+		currentTask.error = function() {
+			if(this.finished === true) {
+				return;
+			}
+			if(this.onError) {
+				this.onError();
+			}
+			this.finish();
+		};
+		currentTask.run();
+	};
+	
+	// Add a task in the queue
+	asyncTaskRunner.addTask = function(asyncTask) {
+		asyncTaskQueue.push(asyncTask);
+	};
+	
+	return asyncTaskRunner;
+})();
+

js/gdrive.js

@@ -1,105 +1,196 @@
-var gdrive = (function() {
+var CLIENT_ID = '241271498917-jpto9lls9fqnem1e4h6ppds9uob8rpvu.apps.googleusercontent.com';
+var SCOPES = [ 'https://www.googleapis.com/auth/drive.install',
+	'https://www.googleapis.com/auth/drive.file' ];
 
-	var CLIENT_ID = '241271498917-jpto9lls9fqnem1e4h6ppds9uob8rpvu.apps.googleusercontent.com';
+var gdriveDelayedFunction = undefined;
-	var SCOPES = [ 'https://www.googleapis.com/auth/drive.install',
+function runGdriveDelayedFunction() {
-		'https://www.googleapis.com/auth/drive.file' ];
+	if(gdriveDelayedFunction !== undefined) {
+		gdriveDelayedFunction();
+	}
+}
 
-	var driveEnabled = false;
+var gdrive = (function($) {
+
+	var connected = false;
+	var authenticated = false;
+	var doNothing = function() {};
 
 	var gdrive = {};
-
+	
-	function askAuth(immediate, callback) {
+	// Try to connect Gdrive by downloading client.js
-		if (!driveEnabled) {
+	function connect(callback) {
-			gapi.auth.authorize({ 'client_id' : CLIENT_ID, 'scope' : SCOPES,
+		callback = callback || doNothing;
-				'immediate' : immediate }, function(authResult) {
+		var asyncTask = {};
-				if (authResult && !authResult.error) {
+		asyncTask.run = function() {
-					// $("#drive-link").hide();
+			if(connected === true) {
-					gapi.client.load('drive', 'v2', function() {
+				asyncTask.success();
-						driveEnabled = true;
+				return;
-						callback();
+			}
-					});
+			gdriveDelayedFunction = function() {
-				}
+				asyncTask.success();
+			};
+			$.ajax({
+				url: "https://apis.google.com/js/client.js?onload=runGdriveDelayedFunction",
+				dataType: "script",
+				timeout: 5000
+			})
+			.fail(function() {
+				asyncTask.error();
 			});
-		} else {
+		};
+		asyncTask.onSuccess = function() {
+			gdriveDelayedFunction = undefined;
+			connected = true;
 			callback();
+		};
+		asyncTask.onError = function() {
+			gdriveDelayedFunction = undefined;
+			onOffline();
+			callback();
+		};
+		asyncTaskRunner.addTask(asyncTask);
+	}
+	
+	// Try to authenticate with Oauth
+	function authenticate(callback, immediate) {
+		callback = callback || doNothing;
+		if(immediate === undefined) {
+			immediate = true;
 		}
+		connect(function() {
+			if(connected === false) {
+				callback();
+				return;
+			}
+			
+			var asyncTask = {};
+			asyncTask.run = function() {
+				if(authenticated === true) {
+					asyncTask.success();
+					return;
+				}
+				gapi.auth.authorize({ 'client_id' : CLIENT_ID, 'scope' : SCOPES,
+					'immediate' : immediate }, function(authResult) {
+					if (!authResult || authResult.error) {
+						asyncTask.error();
+						return;
+					}
+					gapi.client.load('drive', 'v2', function() {
+						authenticated = true;
+						asyncTask.success();
+					});
+				});
+			};
+			asyncTask.onSuccess = function() {
+				callback();
+			};
+			asyncTask.onError = function() {
+				// If immediate did not work retry without immediate flag
+				if(connected === true && immediate === true) {
+					authenticate(callback, false);
+					return;
+				}
+				callback();
+			};
+			asyncTaskRunner.addTask(asyncTask);
+		});
 	}
 
-	function uploadFile(fileId, parentId, title, content, callback) {
+	function upload(fileId, parentId, title, content, callback) {
-		setWorkingIndicator(FLAG_GDRIVE_UPLOAD);
+		callback = callback || doNothing;
-		var boundary = '-------314159265358979323846';
+		authenticate(function() {
-		var delimiter = "\r\n--" + boundary + "\r\n";
+			if(connected === false) {
-		var close_delim = "\r\n--" + boundary + "--";
+				callback();
-
+				return;
-		var contentType = 'text/x-markdown';
-		var metadata = { title : title, mimeType : contentType };
-		if (parentId) {
-			// Specify the directory
-			metadata.parents = [ { kind : 'drive#fileLink', id : parentId } ];
-		}
-		var path = '/upload/drive/v2/files';
-		var method = 'POST';
-		if (fileId) {
-			// If it's an update
-			path += "/" + fileId;
-			method = 'PUT';
-		}
-
-		var base64Data = btoa(content);
-		var multipartRequestBody = delimiter
-			+ 'Content-Type: application/json\r\n\r\n'
-			+ JSON.stringify(metadata) + delimiter + 'Content-Type: '
-			+ contentType + '\r\n' + 'Content-Transfer-Encoding: base64\r\n'
-			+ '\r\n' + base64Data + close_delim;
-
-		var request = gapi.client.request({
-			'path' : path,
-			'method' : method,
-			'params' : { 'uploadType' : 'multipart', },
-			'headers' : { 'Content-Type' : 'multipart/mixed; boundary="'
-				+ boundary + '"', }, 'body' : multipartRequestBody, });
-		request.execute(function(file) {
-			unsetWorkingIndicator(FLAG_GDRIVE_UPLOAD);
-			var fileSyncIndex = undefined;
-			if(file.id) {
-				fileSyncIndex = SYNC_PROVIDER_GDRIVE + file.id;
-				localStorage[fileSyncIndex + ".etag"] = file.etag;
 			}
-			if (callback) {
+			
-				callback(fileSyncIndex);
+			var fileIndex = undefined;
-			}
+			var asyncTask = {};
-		});
+			asyncTask.run = function() {
+				var boundary = '-------314159265358979323846';
+				var delimiter = "\r\n--" + boundary + "\r\n";
+				var close_delim = "\r\n--" + boundary + "--";
+
+				var contentType = 'text/x-markdown';
+				var metadata = { title : title, mimeType : contentType };
+				if (parentId) {
+					// Specify the directory
+					metadata.parents = [ { kind : 'drive#fileLink', id : parentId } ];
+				}
+				var path = '/upload/drive/v2/files';
+				var method = 'POST';
+				if (fileId) {
+					// If it's an update
+					path += "/" + fileId;
+					method = 'PUT';
+				}
+
+				var base64Data = btoa(content);
+				var multipartRequestBody = delimiter
+					+ 'Content-Type: application/json\r\n\r\n'
+					+ JSON.stringify(metadata) + delimiter + 'Content-Type: '
+					+ contentType + '\r\n' + 'Content-Transfer-Encoding: base64\r\n'
+					+ '\r\n' + base64Data + close_delim;
+
+				var request = gapi.client.request({
+					'path' : path,
+					'method' : method,
+					'params' : { 'uploadType' : 'multipart', },
+					'headers' : { 'Content-Type' : 'multipart/mixed; boundary="'
+						+ boundary + '"', }, 'body' : multipartRequestBody, });
+				request.execute(function(file) {
+					if(file.id) {
+						// Upload success
+						fileIndex = SYNC_PROVIDER_GDRIVE + file.id;
+						localStorage[fileIndex + ".etag"] = file.etag;
+						asyncTask.success();
+						return
+					}
+					// Upload failed, try to analyse
+					if(file.error.code === 401) {
+						showError("Google Drive is not accessible.");
+					}
+					else {
+						connected = false;
+						authenticated = false;
+						onOffline();
+					}
+					asyncTask.error();
+				});
+			};
+			asyncTask.onSuccess = function() {
+				callback(fileIndex);
+			};
+			asyncTask.onError = function() {
+				callback();
+			};
+			asyncTaskRunner.addTask(asyncTask);
+		});		
 	}
 	;
 
 	gdrive.init = function() {
-		askAuth(true, function() {
+		try {
-			try {
+			var state = JSON.parse(decodeURI((/state=(.+?)(&|$)/
-				var state = JSON.parse(decodeURI((/state=(.+?)(&|$)/
+				.exec(location.search) || [ , null ])[1]));
-					.exec(location.search) || [ , null ])[1]));
+			if (state.action == 'create') {
-				if (state.action == 'create') {
+				upload(undefined, state.folderId,
-					uploadFile(undefined, state.folderId,
+					fileManager.currentFile, fileManager.content, function(
-						fileManager.currentFile, fileManager.content, function(
+						fileIndex) {
-							file) {
+						console.log(fileIndex);
-							console.log(file);
+					});
-						});
-				}
-			} catch (e) {
 			}
-		});
+		} catch (e) {
+		}
 	};
 
 	gdrive.createFile = function(title, content, callback) {
-		askAuth(false, function() {
+		upload(undefined, undefined, title, content, callback);
-			uploadFile(undefined, undefined, title, content, callback);
-		});
 	};
 
 	gdrive.updateFile = function(id, title, content, callback) {
-		askAuth(false, function() {
+		upload(id, undefined, title, content, callback);
-			uploadFile(id, undefined, title, content, callback);
-		});
 	};
 	
 	return gdrive;
-})();
+})(jQuery);

js/jquery.jgrowl.js

@@ -0,0 +1,356 @@
+/**
+ * jGrowl 1.2.11
+ *
+ * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
+ * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
+ *
+ * Written by Stan Lemon <stosh1985@gmail.com>
+ * Last updated: 2013.02.14
+ *
+ * jGrowl is a jQuery plugin implementing unobtrusive userland notifications.  These
+ * notifications function similarly to the Growl Framework available for
+ * Mac OS X (http://growl.info).
+ *
+ * To Do:
+ * - Move library settings to containers and allow them to be changed per container
+ *
+ * Changes in 1.2.11
+ * - Fix artifacts left behind by the shutdown method and text-cleanup
+ *
+ * Changes in 1.2.10
+ * - Fix beforeClose to be called in click event
+ *
+ * Changes in 1.2.9
+ * - Fixed BC break in jQuery 2.0 beta
+ *
+ * Changes in 1.2.8
+ * - Fixes for jQuery 1.9 and the MSIE6 check, note that with jQuery 2.0 support
+ *   jGrowl intends to drop support for IE6 altogether
+ *
+ * Changes in 1.2.6
+ * - Fixed js error when a notification is opening and closing at the same time
+ *
+ * Changes in 1.2.5
+ * - Changed wrapper jGrowl's options usage to "o" instead of $.jGrowl.defaults
+ * - Added themeState option to control 'highlight' or 'error' for jQuery UI
+ * - Ammended some CSS to provide default positioning for nested usage.
+ * - Changed some CSS to be prefixed with jGrowl- to prevent namespacing issues
+ * - Added two new options - openDuration and closeDuration to allow
+ *   better control of notification open and close speeds, respectively
+ *   Patch contributed by Jesse Vincet.
+ * - Added afterOpen callback.  Patch contributed by Russel Branca.
+ *
+ * Changes in 1.2.4
+ * - Fixed IE bug with the close-all button
+ * - Fixed IE bug with the filter CSS attribute (special thanks to gotwic)
+ * - Update IE opacity CSS
+ * - Changed font sizes to use "em", and only set the base style
+ *
+ * Changes in 1.2.3
+ * - The callbacks no longer use the container as context, instead they use the actual notification
+ * - The callbacks now receive the container as a parameter after the options parameter
+ * - beforeOpen and beforeClose now check the return value, if it's false - the notification does
+ *   not continue.  The open callback will also halt execution if it returns false.
+ * - Fixed bug where containers would get confused
+ * - Expanded the pause functionality to pause an entire container.
+ *
+ * Changes in 1.2.2
+ * - Notification can now be theme rolled for jQuery UI, special thanks to Jeff Chan!
+ *
+ * Changes in 1.2.1
+ * - Fixed instance where the interval would fire the close method multiple times.
+ * - Added CSS to hide from print media
+ * - Fixed issue with closer button when div { position: relative } is set
+ * - Fixed leaking issue with multiple containers.  Special thanks to Matthew Hanlon!
+ *
+ * Changes in 1.2.0
+ * - Added message pooling to limit the number of messages appearing at a given time.
+ * - Closing a notification is now bound to the notification object and triggered by the close button.
+ *
+ * Changes in 1.1.2
+ * - Added iPhone styled example
+ * - Fixed possible IE7 bug when determining if the ie6 class shoudl be applied.
+ * - Added template for the close button, so that it's content could be customized.
+ *
+ * Changes in 1.1.1
+ * - Fixed CSS styling bug for ie6 caused by a mispelling
+ * - Changes height restriction on default notifications to min-height
+ * - Added skinned examples using a variety of images
+ * - Added the ability to customize the content of the [close all] box
+ * - Added jTweet, an example of using jGrowl + Twitter
+ *
+ * Changes in 1.1.0
+ * - Multiple container and instances.
+ * - Standard $.jGrowl() now wraps $.fn.jGrowl() by first establishing a generic jGrowl container.
+ * - Instance methods of a jGrowl container can be called by $.fn.jGrowl(methodName)
+ * - Added glue preferenced, which allows notifications to be inserted before or after nodes in the container
+ * - Added new log callback which is called before anything is done for the notification
+ * - Corner's attribute are now applied on an individual notification basis.
+ *
+ * Changes in 1.0.4
+ * - Various CSS fixes so that jGrowl renders correctly in IE6.
+ *
+ * Changes in 1.0.3
+ * - Fixed bug with options persisting across notifications
+ * - Fixed theme application bug
+ * - Simplified some selectors and manipulations.
+ * - Added beforeOpen and beforeClose callbacks
+ * - Reorganized some lines of code to be more readable
+ * - Removed unnecessary this.defaults context
+ * - If corners plugin is present, it's now customizable.
+ * - Customizable open animation.
+ * - Customizable close animation.
+ * - Customizable animation easing.
+ * - Added customizable positioning (top-left, top-right, bottom-left, bottom-right, center)
+ *
+ * Changes in 1.0.2
+ * - All CSS styling is now external.
+ * - Added a theme parameter which specifies a secondary class for styling, such
+ *   that notifications can be customized in appearance on a per message basis.
+ * - Notification life span is now customizable on a per message basis.
+ * - Added the ability to disable the global closer, enabled by default.
+ * - Added callbacks for when a notification is opened or closed.
+ * - Added callback for the global closer.
+ * - Customizable animation speed.
+ * - jGrowl now set itself up and tears itself down.
+ *
+ * Changes in 1.0.1:
+ * - Removed dependency on metadata plugin in favor of .data()
+ * - Namespaced all events
+ */
+(function($) {
+	/** Compatibility holdover for 1.9 to check IE6 **/
+	var $ie6 = (function(){
+		return false === $.support.boxModel && $.support.objectAll && $.support.leadingWhitespace;
+	})();
+
+	/** jGrowl Wrapper - Establish a base jGrowl Container for compatibility with older releases. **/
+	$.jGrowl = function( m , o ) {
+		// To maintain compatibility with older version that only supported one instance we'll create the base container.
+		if ( $('#jGrowl').size() == 0 )
+			$('<div id="jGrowl"></div>').addClass( (o && o.position) ? o.position : $.jGrowl.defaults.position ).appendTo('body');
+
+		// Create a notification on the container.
+		$('#jGrowl').jGrowl(m,o);
+	};
+
+
+	/** Raise jGrowl Notification on a jGrowl Container **/
+	$.fn.jGrowl = function( m , o ) {
+		if ( $.isFunction(this.each) ) {
+			var args = arguments;
+
+			return this.each(function() {
+				var self = this;
+
+				/** Create a jGrowl Instance on the Container if it does not exist **/
+				if ( $(this).data('jGrowl.instance') == undefined ) {
+					$(this).data('jGrowl.instance', $.extend( new $.fn.jGrowl(), { notifications: [], element: null, interval: null } ));
+					$(this).data('jGrowl.instance').startup( this );
+				}
+
+				/** Optionally call jGrowl instance methods, or just raise a normal notification **/
+				if ( $.isFunction($(this).data('jGrowl.instance')[m]) ) {
+					$(this).data('jGrowl.instance')[m].apply( $(this).data('jGrowl.instance') , $.makeArray(args).slice(1) );
+				} else {
+					$(this).data('jGrowl.instance').create( m , o );
+				}
+			});
+		};
+	};
+
+	$.extend( $.fn.jGrowl.prototype , {
+
+		/** Default JGrowl Settings **/
+		defaults: {
+			pool:			 0,
+			header:		 '',
+			group:			 '',
+			sticky:		 false,
+			position:		 'top-right',
+			glue:			 'after',
+			theme:			 'default',
+			themeState:	 'highlight',
+			corners:		 '10px',
+			check:			 250,
+			life:			 3000,
+			closeDuration:  'normal',
+			openDuration:   'normal',
+			easing:		 'swing',
+			closer:		 true,
+			closeTemplate: '&times;',
+			closerTemplate: '<div>[ close all ]</div>',
+			log:			 function(e,m,o) {},
+			beforeOpen:	 function(e,m,o) {},
+			afterOpen:		 function(e,m,o) {},
+			open:			 function(e,m,o) {},
+			beforeClose:	 function(e,m,o) {},
+			close:			 function(e,m,o) {},
+			animateOpen:	 {
+				opacity:	 'show'
+			},
+			animateClose:	 {
+				opacity:	 'hide'
+			}
+		},
+
+		notifications: [],
+
+		/** jGrowl Container Node **/
+		element:	 null,
+
+		/** Interval Function **/
+		interval:   null,
+
+		/** Create a Notification **/
+		create:	 function( message , o ) {
+			var o = $.extend({}, this.defaults, o);
+
+			/* To keep backward compatibility with 1.24 and earlier, honor 'speed' if the user has set it */
+			if (typeof o.speed !== 'undefined') {
+				o.openDuration = o.speed;
+				o.closeDuration = o.speed;
+			}
+
+			this.notifications.push({ message: message , options: o });
+
+			o.log.apply( this.element , [this.element,message,o] );
+		},
+
+		render:		 function( notification ) {
+			var self = this;
+			var message = notification.message;
+			var o = notification.options;
+
+			// Support for jQuery theme-states, if this is not used it displays a widget header
+			o.themeState = (o.themeState == '') ? '' : 'ui-state-' + o.themeState;
+
+			var notification = $('<div/>')
+				.addClass('jGrowl-notification ' + o.themeState + ' ui-corner-all' + ((o.group != undefined && o.group != '') ? ' ' + o.group : ''))
+				.append($('<div/>').addClass('jGrowl-close').html(o.closeTemplate))
+				.append($('<div/>').addClass('jGrowl-header').html(o.header))
+				.append($('<div/>').addClass('jGrowl-message').html(message))
+				.data("jGrowl", o).addClass(o.theme).children('div.jGrowl-close').bind("click.jGrowl", function() {
+					$(this).parent().trigger('jGrowl.beforeClose');
+				})
+				.parent();
+
+
+			/** Notification Actions **/
+			$(notification).bind("mouseover.jGrowl", function() {
+				$('div.jGrowl-notification', self.element).data("jGrowl.pause", true);
+			}).bind("mouseout.jGrowl", function() {
+				$('div.jGrowl-notification', self.element).data("jGrowl.pause", false);
+			}).bind('jGrowl.beforeOpen', function() {
+				if ( o.beforeOpen.apply( notification , [notification,message,o,self.element] ) != false ) {
+					$(this).trigger('jGrowl.open');
+				}
+			}).bind('jGrowl.open', function() {
+				if ( o.open.apply( notification , [notification,message,o,self.element] ) != false ) {
+					if ( o.glue == 'after' ) {
+						$('div.jGrowl-notification:last', self.element).after(notification);
+					} else {
+						$('div.jGrowl-notification:first', self.element).before(notification);
+					}
+
+					$(this).animate(o.animateOpen, o.openDuration, o.easing, function() {
+						// Fixes some anti-aliasing issues with IE filters.
+						if ($.support.opacity === false)
+							this.style.removeAttribute('filter');
+
+						if ( $(this).data("jGrowl") != null ) // Happens when a notification is closing before it's open.
+							$(this).data("jGrowl").created = new Date();
+
+						$(this).trigger('jGrowl.afterOpen');
+					});
+				}
+			}).bind('jGrowl.afterOpen', function() {
+				o.afterOpen.apply( notification , [notification,message,o,self.element] );
+			}).bind('jGrowl.beforeClose', function() {
+				if ( o.beforeClose.apply( notification , [notification,message,o,self.element] ) != false )
+					$(this).trigger('jGrowl.close');
+			}).bind('jGrowl.close', function() {
+				// Pause the notification, lest during the course of animation another close event gets called.
+				$(this).data('jGrowl.pause', true);
+				$(this).animate(o.animateClose, o.closeDuration, o.easing, function() {
+					if ( $.isFunction(o.close) ) {
+						if ( o.close.apply( notification , [notification,message,o,self.element] ) !== false )
+							$(this).remove();
+					} else {
+						$(this).remove();
+					}
+				});
+			}).trigger('jGrowl.beforeOpen');
+
+			/** Optional Corners Plugin **/
+			if ( o.corners != '' && $.fn.corner != undefined ) $(notification).corner( o.corners );
+
+			/** Add a Global Closer if more than one notification exists **/
+			if ( $('div.jGrowl-notification:parent', self.element).size() > 1 &&
+				 $('div.jGrowl-closer', self.element).size() == 0 && this.defaults.closer != false ) {
+				$(this.defaults.closerTemplate).addClass('jGrowl-closer ' + this.defaults.themeState + ' ui-corner-all').addClass(this.defaults.theme)
+					.appendTo(self.element).animate(this.defaults.animateOpen, this.defaults.speed, this.defaults.easing)
+					.bind("click.jGrowl", function() {
+						$(this).siblings().trigger("jGrowl.beforeClose");
+
+						if ( $.isFunction( self.defaults.closer ) ) {
+							self.defaults.closer.apply( $(this).parent()[0] , [$(this).parent()[0]] );
+						}
+					});
+			};
+		},
+
+		/** Update the jGrowl Container, removing old jGrowl notifications **/
+		update:	 function() {
+			$(this.element).find('div.jGrowl-notification:parent').each( function() {
+				if ( $(this).data("jGrowl") != undefined && $(this).data("jGrowl").created != undefined &&
+					 ($(this).data("jGrowl").created.getTime() + parseInt($(this).data("jGrowl").life))  < (new Date()).getTime() &&
+					 $(this).data("jGrowl").sticky != true &&
+					 ($(this).data("jGrowl.pause") == undefined || $(this).data("jGrowl.pause") != true) ) {
+
+					// Pause the notification, lest during the course of animation another close event gets called.
+					$(this).trigger('jGrowl.beforeClose');
+				}
+			});
+
+			if ( this.notifications.length > 0 &&
+				 (this.defaults.pool == 0 || $(this.element).find('div.jGrowl-notification:parent').size() < this.defaults.pool) )
+				this.render( this.notifications.shift() );
+
+			if ( $(this.element).find('div.jGrowl-notification:parent').size() < 2 ) {
+				$(this.element).find('div.jGrowl-closer').animate(this.defaults.animateClose, this.defaults.speed, this.defaults.easing, function() {
+					$(this).remove();
+				});
+			}
+		},
+
+		/** Setup the jGrowl Notification Container **/
+		startup:	function(e) {
+			this.element = $(e).addClass('jGrowl').append('<div class="jGrowl-notification"></div>');
+			this.interval = setInterval( function() {
+				$(e).data('jGrowl.instance').update();
+			}, parseInt(this.defaults.check));
+
+			if ($ie6) {
+				$(this.element).addClass('ie6');
+			}
+		},
+
+		/** Shutdown jGrowl, removing it and clearing the interval **/
+		shutdown:   function() {
+			$(this.element).removeClass('jGrowl')
+				.find('div.jGrowl-notification').trigger('jGrowl.close')
+				.parent().empty()
+		},
+
+		close:	 function() {
+			$(this.element).find('div.jGrowl-notification').each(function(){
+				$(this).trigger('jGrowl.beforeClose');
+			});
+		}
+	});
+
+	/** Reference the Defaults Object for compatibility with older versions of jGrowl **/
+	$.jGrowl.defaults = $.fn.jGrowl.prototype.defaults;
+
+})(jQuery);

js/main.js

@@ -1,21 +1,65 @@
+var currentTime = new Date().getTime();
+
 function showError(msg) {
-	alert(msg);
+	showMessage(msg, "icon-warning-sign");
 }
 
-var workingIndicator = 0;
+function showMessage(msg, iconClass, options) {
-var FLAG_GDRIVE_UPLOAD = 1;
+	options = options || {};
-var FLAG_SYNCHRONIZE = 2;
+	$.jGrowl("<i class='icon-white " + iconClass + "'></i> " + msg, options);
-function setWorkingIndicator(flag) {
+}
-	workingIndicator |= flag;
+
-	if (workingIndicator) {
+function showWorkingIndicator(show) {
+	if (show === false) {
+		$(".working-indicator").addClass("hide");
+	} else {
 		$(".working-indicator").removeClass("hide");
 	}
 }
 
-function unsetWorkingIndicator(flag) {
+var offline = false;
-	workingIndicator &= ~flag;
+var offlineTime = currentTime;
-	if (!workingIndicator) {
+function onOffline() {
-		$(".working-indicator").addClass("hide");
+	offline = true;
+	offlineTime = currentTime;
+	if ($(".msg-offline").length === 0)
+		showMessage("You are offline.", "icon-exclamation-sign msg-offline", {
+			sticky : true, close : function() {
+				showMessage("You are back online!", "icon-signal");
+			} });
+}
+
+function onOnline() {
+	offline = false;
+	$(".msg-offline").parents(".jGrowl-notification").trigger(
+		'jGrowl.beforeClose');
+}
+
+function autoClean() {
+	$("#message-container .msg-temp").each(function() {
+		var displayTime = $(this).data("displayTime");
+		if (displayTime + 5000 < currentTime) {
+			$(this).animate({ opacity : 'hide' }, 600, function() {
+				$(this).remove();
+				if ($("#message-container div").length === 0) {
+					$("#message-container").addClass("hide");
+				}
+			});
+		}
+	});
+	if ($("#message-container div").length === 0) {
+		$("#message-container").addClass("hide");
+	}
+	// Try to reconnect if we are offline but we have some network
+	if (offline === true && navigator.onLine === true
+		&& offlineTime + 60000 < currentTime) {
+		offlineTime = currentTime;
+		// Try to download anything to test the connection
+		$.ajax(
+			{ url : "https://apis.google.com/js/client.js", timeout : 5000,
+				dataType : "script" }).done(function() {
+			onOnline();
+		});
 	}
 }
 
@@ -50,7 +94,6 @@ var synchronizer = (function($) {
 	function sync(fileSyncIndexList, content, title) {
 		if (fileSyncIndexList.length === 0) {
 			localStorage.removeItem("sync.current");
-			unsetWorkingIndicator(FLAG_SYNCHRONIZE);
 			running = false;
 			// run the next file synchronization
 			synchronizer.run();
@@ -62,8 +105,13 @@ var synchronizer = (function($) {
 		if (fileSyncIndex.indexOf(SYNC_PROVIDER_GDRIVE) === 0) {
 			var id = fileSyncIndex.substring(SYNC_PROVIDER_GDRIVE.length);
 			gdrive.updateFile(id, title, content, function(result) {
-				if (!result) {
+				if (!result && offline) {
-					showError("Error while uploading file on Google Drive");
+					// If we detect offline mode we put the fileIndex back in
+					// the queue
+					synchronizer.addFile(localStorage["sync.current"]);
+					localStorage.removeItem("sync.current");
+					running = false;
+					return;
 				}
 				sync(fileSyncIndexList, content, title);
 			});
@@ -75,12 +123,9 @@ var synchronizer = (function($) {
 	var running = false;
 	synchronizer.run = function() {
 		// If synchronization is already running or nothing to synchronize
-		if (running || syncQueue.length === 1) {
+		if (running || syncQueue.length === 1 || offline) {
 			return;
 		}
-
-		// Start synchronization of the next available in the queue
-		setWorkingIndicator(FLAG_SYNCHRONIZE);
 		running = true;
 
 		// Dequeue the fileIndex
@@ -107,13 +152,17 @@ var fileManager = (function($) {
 
 	var save = false;
 	fileManager.init = function() {
+		gdrive.init();
 		synchronizer.init();
 		fileManager.selectFile();
 
 		// Save file automatically and synchronize
 		window.setInterval(function() {
+			currentTime = new Date().getTime();
 			fileManager.saveFile();
 			synchronizer.run();
+			asyncTaskRunner.runTask();
+			autoClean();
 		}, 1000);
 
 		$(".action-create-file").click(function() {
@@ -331,10 +380,11 @@ var core = (function($) {
 	core.createLayout = function() {
 		var layout = undefined;
 		var layoutGlobalConfig = { closable : true, resizable : false,
-			slidable : false, livePaneResizing : true, spacing_open : 15,
+			slidable : false, livePaneResizing : true,
-			spacing_closed : 15, togglerLength_open : 90,
+			enableCursorHotkey : false, spacing_open : 15, spacing_closed : 15,
-			togglerLength_closed : 90, center__minWidth : 100,
+			togglerLength_open : 90, togglerLength_closed : 90,
-			center__minHeight : 100, stateManagement__enabled : false, };
+			center__minWidth : 100, center__minHeight : 100,
+			stateManagement__enabled : false, };
 		if (settings.layoutOrientation == "horizontal") {
 			$(".ui-layout-south").remove();
 			$(".ui-layout-east").addClass("well").prop("id", "wmd-preview");
@@ -396,7 +446,19 @@ var core = (function($) {
 
 	$(function() {
 
+		$.jGrowl.defaults.closer = false;
+		$.jGrowl.defaults.closeTemplate = '';
+		$.jGrowl.defaults.position = 'bottom-right';
+
 		core.init();
+		
+		// listen to online/offline events
+		$(window).on('offline', onOffline);
+		$(window).on('online', onOnline);
+		if (navigator.onLine === false) {
+			onOffline();
+		}
+
 		if (typeof (Storage) !== "undefined") {
 			fileManager.init();
 		} else {