Finished basic implementation of taskbar.

SafeExamBrowser.Browser/BrowserApplicationController.cs

@@ -14,9 +14,9 @@ namespace SafeExamBrowser.Browser
 {
 	public class BrowserApplicationController : IApplicationController
 	{
-		private IApplicationButton button;
+		private ITaskbarButton button;
 
-		public void RegisterApplicationButton(IApplicationButton button)
+		public void RegisterApplicationButton(ITaskbarButton button)
 		{
 			this.button = button;
 			this.button.OnClick += ButtonClick;

SafeExamBrowser.Browser/BrowserApplicationInfo.cs

@@ -14,6 +14,6 @@ namespace SafeExamBrowser.Browser
 	{
 		public string Name => "Chromium Browser";
 		public string Tooltip => Name;
-		public IApplicationIconResource IconResource { get; } = new BrowserIconResource();
+		public IIconResource IconResource { get; } = new BrowserIconResource();
 	}
 }

SafeExamBrowser.Browser/BrowserIconResource.cs

@@ -11,7 +11,7 @@ using SafeExamBrowser.Contracts.Configuration;
 
 namespace SafeExamBrowser.Browser
 {
-	public class BrowserIconResource : IApplicationIconResource
+	public class BrowserIconResource : IIconResource
 	{
 		public Uri Uri => new Uri("pack://application:,,,/SafeExamBrowser.Browser;component/Images/ChromiumLogo.xaml");
 		public bool IsBitmapResource => false;

SafeExamBrowser.Contracts/Behaviour/IApplicationController.cs

@@ -15,6 +15,6 @@ namespace SafeExamBrowser.Contracts.Behaviour
 		/// <summary>
 		/// Registers the taskbar button for this application.
 		/// </summary>
-		void RegisterApplicationButton(IApplicationButton button);
+		void RegisterApplicationButton(ITaskbarButton button);
 	}
 }

SafeExamBrowser.Contracts/Behaviour/INotificationController.cs

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2017 ETH Zürich, Educational Development and Technology (LET)
+ * 
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+using SafeExamBrowser.Contracts.UserInterface;
+
+namespace SafeExamBrowser.Contracts.Behaviour
+{
+	public interface INotificationController
+	{
+		/// <summary>
+		/// Registers the taskbar notification.
+		/// </summary>
+		void RegisterNotification(ITaskbarNotification notification);
+	}
+}

SafeExamBrowser.Contracts/Configuration/IApplicationInfo.cs

@@ -23,6 +23,6 @@ namespace SafeExamBrowser.Contracts.Configuration
 		/// <summary>
 		/// The resource providing the application icon.
 		/// </summary>
-		IApplicationIconResource IconResource { get; }
+		IIconResource IconResource { get; }
 	}
 }

SafeExamBrowser.Contracts/Configuration/IIconResource.cs

@@ -10,10 +10,10 @@ using System;
 
 namespace SafeExamBrowser.Contracts.Configuration
 {
-	public interface IApplicationIconResource
+	public interface IIconResource
 	{
 		/// <summary>
-		/// The <c>Uri</c> pointing to the application icon.
+		/// The <c>Uri</c> pointing to the icon.
 		/// </summary>
 		Uri Uri { get; }
 

SafeExamBrowser.Contracts/Configuration/INotificationInfo.cs

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2017 ETH Zürich, Educational Development and Technology (LET)
+ * 
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+namespace SafeExamBrowser.Contracts.Configuration
+{
+	public interface INotificationInfo
+	{
+		/// <summary>
+		/// The tooltip for the notification.
+		/// </summary>
+		string Tooltip { get; }
+
+		/// <summary>
+		/// The resource providing the notification icon.
+		/// </summary>
+		IIconResource IconResource { get; }
+	}
+}

SafeExamBrowser.Contracts/I18n/Key.cs

@@ -19,6 +19,7 @@ namespace SafeExamBrowser.Contracts.I18n
 		MessageBox_SingleInstanceTitle,
 		MessageBox_StartupError,
 		MessageBox_StartupErrorTitle,
+		Notification_AboutTooltip,
 		SplashScreen_InitializeBrowser,
 		SplashScreen_StartupProcedure,
 		Version

SafeExamBrowser.Contracts/SafeExamBrowser.Contracts.csproj

@@ -41,9 +41,11 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Behaviour\IApplicationController.cs" />
-    <Compile Include="Configuration\IApplicationIconResource.cs" />
+    <Compile Include="Behaviour\INotificationController.cs" />
+    <Compile Include="Configuration\IIconResource.cs" />
     <Compile Include="Configuration\IApplicationInfo.cs" />
     <Compile Include="Configuration\IApplicationInstance.cs" />
+    <Compile Include="Configuration\INotificationInfo.cs" />
     <Compile Include="Configuration\ISettings.cs" />
     <Compile Include="Behaviour\IShutdownController.cs" />
     <Compile Include="Behaviour\IStartupController.cs" />
@@ -57,11 +59,12 @@
     <Compile Include="Logging\IThreadInfo.cs" />
     <Compile Include="Logging\LogLevel.cs" />
     <Compile Include="UserInterface\IMessageBox.cs" />
+    <Compile Include="UserInterface\ITaskbarNotification.cs" />
     <Compile Include="UserInterface\ISplashScreen.cs" />
     <Compile Include="UserInterface\ITaskbar.cs" />
     <Compile Include="I18n\ITextResource.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="UserInterface\IApplicationButton.cs" />
+    <Compile Include="UserInterface\ITaskbarButton.cs" />
     <Compile Include="UserInterface\IUiElementFactory.cs" />
     <Compile Include="UserInterface\MessageBoxAction.cs" />
     <Compile Include="UserInterface\MessageBoxIcon.cs" />

SafeExamBrowser.Contracts/UserInterface/ITaskbar.cs

@@ -13,7 +13,13 @@ namespace SafeExamBrowser.Contracts.UserInterface
 		/// <summary>
 		/// Adds the given application button to the taskbar.
 		/// </summary>
-		void AddButton(IApplicationButton button);
+		void AddButton(ITaskbarButton button);
+
+		/// <summary>
+		/// Adds the given notification button to the taskbar.
+		/// </summary>
+		/// <param name="button"></param>
+		void AddNotification(ITaskbarNotification button);
 
 		/// <summary>
 		/// Moves the taskbar to the given location on the screen.

SafeExamBrowser.Contracts/UserInterface/ITaskbarButton.cs

@@ -13,7 +13,7 @@ namespace SafeExamBrowser.Contracts.UserInterface
 {
 	public delegate void TaskbarButtonClickHandler(Guid? instanceId = null);
 
-	public interface IApplicationButton
+	public interface ITaskbarButton
 	{
 		/// <summary>
 		/// OnClick handler, executed when the user clicks on the application button. If multiple instances of

SafeExamBrowser.Contracts/UserInterface/ITaskbarNotification.cs

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2017 ETH Zürich, Educational Development and Technology (LET)
+ * 
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+namespace SafeExamBrowser.Contracts.UserInterface
+{
+	public delegate void TaskbarNotificationClickHandler();
+
+	public interface ITaskbarNotification
+	{
+		/// <summary>
+		/// OnClick handler, executed when the user clicks on the notification icon.
+		/// </summary>
+		event TaskbarNotificationClickHandler OnClick;
+	}
+}

SafeExamBrowser.Contracts/UserInterface/IUiElementFactory.cs

@@ -15,6 +15,11 @@ namespace SafeExamBrowser.Contracts.UserInterface
 		/// <summary>
 		/// Creates a taskbar button, initialized with the given application information.
 		/// </summary>
-		IApplicationButton CreateApplicationButton(IApplicationInfo info);
+		ITaskbarButton CreateApplicationButton(IApplicationInfo info);
+
+		/// <summary>
+		/// Creates a taskbar notification, initialized with the given notification information.
+		/// </summary>
+		ITaskbarNotification CreateNotification(INotificationInfo info);
 	}
 }

SafeExamBrowser.Core/Behaviour/StartupController.cs

@@ -24,6 +24,7 @@ namespace SafeExamBrowser.Core.Behaviour
 		private IApplicationInfo browserInfo;
 		private ILogger logger;
 		private IMessageBox messageBox;
+		private INotificationInfo aboutInfo;
 		private ISettings settings;
 		private ISplashScreen splashScreen;
 		private ITaskbar taskbar;
@@ -51,21 +52,23 @@ namespace SafeExamBrowser.Core.Behaviour
 			IApplicationInfo browserInfo,
 			ILogger logger,
 			IMessageBox messageBox,
+			INotificationInfo aboutInfo,
 			ISettings settings,
 			ISplashScreen splashScreen,
 			ITaskbar taskbar,
 			IText text,
 			IUiElementFactory uiFactory)
 		{
-			this.browserController = browserController ?? throw new ArgumentNullException(nameof(browserController));
+			this.browserController = browserController;
-			this.browserInfo = browserInfo ?? throw new ArgumentNullException(nameof(browserInfo));
+			this.browserInfo = browserInfo;
-			this.logger = logger ?? throw new ArgumentNullException(nameof(logger)); ;
+			this.logger = logger;
-			this.messageBox = messageBox ?? throw new ArgumentNullException(nameof(messageBox)); ;
+			this.messageBox = messageBox;
-			this.settings = settings ?? throw new ArgumentNullException(nameof(settings)); ;
+			this.aboutInfo = aboutInfo;
-			this.splashScreen = splashScreen ?? throw new ArgumentNullException(nameof(splashScreen)); ;
+			this.settings = settings;
-			this.taskbar = taskbar ?? throw new ArgumentNullException(nameof(taskbar)); ;
+			this.splashScreen = splashScreen;
-			this.text = text ?? throw new ArgumentNullException(nameof(text)); ;
+			this.taskbar = taskbar;
-			this.uiFactory = uiFactory ?? throw new ArgumentNullException(nameof(uiFactory)); ;
+			this.text = text;
+			this.uiFactory = uiFactory;
 		}
 
 		public bool TryInitializeApplication()
@@ -166,7 +169,9 @@ namespace SafeExamBrowser.Core.Behaviour
 		{
 			logger.Info("Initializing taskbar.");
 
-			// TODO
+			var aboutNotification = uiFactory.CreateNotification(aboutInfo);
+
+			taskbar.AddNotification(aboutNotification);
 		}
 
 		private void InitializeBrowser()
@@ -177,9 +182,6 @@ namespace SafeExamBrowser.Core.Behaviour
 			var browserButton = uiFactory.CreateApplicationButton(browserInfo);
 
 			browserController.RegisterApplicationButton(browserButton);
-
-			// TODO
-
 			taskbar.AddButton(browserButton);
 		}
 

SafeExamBrowser.Core/Configuration/AboutNotificationIconResource.cs

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2017 ETH Zürich, Educational Development and Technology (LET)
+ * 
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+using System;
+using SafeExamBrowser.Contracts.Configuration;
+
+namespace SafeExamBrowser.Core.Configuration
+{
+	public class AboutNotificationIconResource : IIconResource
+	{
+		public Uri Uri => new Uri("pack://application:,,,/SafeExamBrowser;component/SafeExamBrowser.ico");
+		public bool IsBitmapResource => true;
+		public bool IsXamlResource => false;
+	}
+}

SafeExamBrowser.Core/Configuration/AboutNotificationInfo.cs

@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2017 ETH Zürich, Educational Development and Technology (LET)
+ * 
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+using SafeExamBrowser.Contracts.Configuration;
+using SafeExamBrowser.Contracts.I18n;
+
+namespace SafeExamBrowser.Core.Configuration
+{
+	public class AboutNotificationInfo : INotificationInfo
+	{
+		private IText text;
+
+		public string Tooltip => text.Get(Key.Notification_AboutTooltip);
+		public IIconResource IconResource { get; } = new AboutNotificationIconResource();
+
+		public AboutNotificationInfo(IText text)
+		{
+			this.text = text;
+		}
+	}
+}

SafeExamBrowser.Core/I18n/Text.xml

@@ -4,6 +4,7 @@
   <MessageBox_ShutdownErrorTitle>Shutdown Error</MessageBox_ShutdownErrorTitle>
   <MessageBox_StartupError>An unexpected error occurred during the startup procedure! Please consult the application log for more information...</MessageBox_StartupError>
   <MessageBox_StartupErrorTitle>Startup Error</MessageBox_StartupErrorTitle>
+  <Notification_AboutTooltip>About Safe Exam Browser</Notification_AboutTooltip>
   <SplashScreen_InitializeBrowser>Initializing browser.</SplashScreen_InitializeBrowser>
   <SplashScreen_StartupProcedure>Initiating startup procedure.</SplashScreen_StartupProcedure>
   <Version>Version</Version>

SafeExamBrowser.Core/SafeExamBrowser.Core.csproj

@@ -40,6 +40,8 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Configuration\AboutNotificationIconResource.cs" />
+    <Compile Include="Configuration\AboutNotificationInfo.cs" />
     <Compile Include="Configuration\Settings.cs" />
     <Compile Include="Behaviour\ShutdownController.cs" />
     <Compile Include="Behaviour\StartupController.cs" />

SafeExamBrowser.UserInterface/Controls/ApplicationButton.xaml.cs

@@ -14,11 +14,10 @@ using System.Windows.Controls;
 using SafeExamBrowser.Contracts.Configuration;
 using SafeExamBrowser.Contracts.UserInterface;
 using SafeExamBrowser.UserInterface.Utilities;
-using System.Windows.Media;
 
 namespace SafeExamBrowser.UserInterface.Controls
 {
-	public partial class ApplicationButton : UserControl, IApplicationButton
+	public partial class ApplicationButton : UserControl, ITaskbarButton
 	{
 		private IApplicationInfo info;
 		private IList<IApplicationInstance> instances = new List<IApplicationInstance>();
@@ -57,10 +56,11 @@ namespace SafeExamBrowser.UserInterface.Controls
 		private void InitializeApplicationButton()
 		{
 			Button.ToolTip = info.Tooltip;
-			Button.Content = ApplicationIconResourceLoader.Load(info.IconResource);
+			Button.Content = IconResourceLoader.Load(info.IconResource);
 
-			Button.MouseLeave += (o, args) => InstancePopup.IsOpen = InstancePopup.IsMouseOver;
+			Button.MouseLeave += (o, args) => InstancePopup.IsOpen &= InstancePopup.IsMouseOver || ActiveBar.IsMouseOver;
 			InstancePopup.MouseLeave += (o, args) => InstancePopup.IsOpen = false;
+			InstancePopup.Opened += (o, args) => ActiveBar.Width = Double.NaN;
 			InstancePopup.Closed += (o, args) => ActiveBar.Width = 40;
 			InstanceStackPanel.SizeChanged += (o, args) =>
 			{
@@ -80,7 +80,6 @@ namespace SafeExamBrowser.UserInterface.Controls
 			else
 			{
 				InstancePopup.IsOpen = true;
-				ActiveBar.Width = Double.NaN;
 			}
 		}
 	}

SafeExamBrowser.UserInterface/Controls/ApplicationInstanceButton.xaml.cs

@@ -33,7 +33,7 @@ namespace SafeExamBrowser.UserInterface.Controls
 
 		private void InitializeApplicationInstanceButton()
 		{
-			Icon.Content = ApplicationIconResourceLoader.Load(info.IconResource);
+			Icon.Content = IconResourceLoader.Load(info.IconResource);
 			Text.Text = instance.Name;
 			Button.ToolTip = $"{instance.Name} - {info.Tooltip}";
 		}

SafeExamBrowser.UserInterface/Controls/DateTimeControl.xaml

@@ -5,7 +5,7 @@
              xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
              xmlns:local="clr-namespace:SafeExamBrowser.UserInterface.Controls"
              mc:Ignorable="d" d:DesignHeight="40" d:DesignWidth="75">
-    <Grid ToolTip="{Binding Path=ToolTip}">
+    <Grid ToolTip="{Binding Path=ToolTip}" Margin="5,0">
         <Grid.RowDefinitions>
             <RowDefinition Height="1*" />
             <RowDefinition Height="1*" />

SafeExamBrowser.UserInterface/Controls/NotificationIcon.xaml

@@ -0,0 +1,28 @@
+<UserControl x:Class="SafeExamBrowser.UserInterface.Controls.NotificationIcon"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:local="clr-namespace:SafeExamBrowser.UserInterface.Controls"
+             mc:Ignorable="d" 
+             d:DesignHeight="16" d:DesignWidth="16">
+    <Grid>
+        <Button x:Name="IconButton" Click="Icon_Click" Background="#00000000" BorderThickness="0">
+            <Button.Template>
+                <ControlTemplate TargetType="Button">
+                    <Border x:Name="ButtonContent" Background="{TemplateBinding Background}" Padding="2,1">
+                        <ContentPresenter VerticalAlignment="Center" HorizontalAlignment="Center" ContentSource="Content" Height="16" Width="16" RenderOptions.BitmapScalingMode="HighQuality" />
+                    </Border>
+                    <ControlTemplate.Triggers>
+                        <Trigger Property="IsMouseOver" Value="True">
+                            <Setter TargetName="ButtonContent" Property="Background" Value="#00000000" />
+                        </Trigger>
+                        <Trigger Property="IsPressed" Value="True">
+                            <Setter TargetName="ButtonContent" Property="Background" Value="#00000000" />
+                        </Trigger>
+                    </ControlTemplate.Triggers>
+                </ControlTemplate>
+            </Button.Template>
+        </Button>
+    </Grid>
+</UserControl>

SafeExamBrowser.UserInterface/Controls/NotificationIcon.xaml.cs

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2017 ETH Zürich, Educational Development and Technology (LET)
+ * 
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+using System.Windows.Controls;
+using SafeExamBrowser.Contracts.Configuration;
+using SafeExamBrowser.Contracts.UserInterface;
+using SafeExamBrowser.UserInterface.Utilities;
+
+namespace SafeExamBrowser.UserInterface.Controls
+{
+	public partial class NotificationIcon : UserControl, ITaskbarNotification
+	{
+		public event TaskbarNotificationClickHandler OnClick;
+
+		public NotificationIcon(INotificationInfo info)
+		{
+			InitializeComponent();
+			InitializeNotificationIcon(info);
+		}
+
+		private void Icon_Click(object sender, System.Windows.RoutedEventArgs e)
+		{
+			OnClick?.Invoke();
+		}
+
+		private void InitializeNotificationIcon(INotificationInfo info)
+		{
+			IconButton.ToolTip = info.Tooltip;
+			IconButton.Content = IconResourceLoader.Load(info.IconResource);
+		}
+	}
+}

SafeExamBrowser.UserInterface/Controls/QuitButton.xaml

@@ -0,0 +1,28 @@
+<UserControl x:Class="SafeExamBrowser.UserInterface.Controls.QuitButton"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:local="clr-namespace:SafeExamBrowser.UserInterface.Controls"
+             mc:Ignorable="d" 
+             d:DesignHeight="40" d:DesignWidth="40">
+    <Grid>
+        <Button Click="Button_Click" Content="Quit" Background="#00000000" Foreground="White">
+            <Button.Template>
+                <ControlTemplate TargetType="Button">
+                    <Border x:Name="ButtonContent" Background="{TemplateBinding Background}" Padding="5">
+                        <ContentPresenter VerticalAlignment="Center" HorizontalAlignment="Center" ContentSource="Content" />
+                    </Border>
+                    <ControlTemplate.Triggers>
+                        <Trigger Property="IsMouseOver" Value="True">
+                            <Setter TargetName="ButtonContent" Property="Background" Value="#40FF0000" />
+                        </Trigger>
+                        <Trigger Property="IsPressed" Value="True">
+                            <Setter TargetName="ButtonContent" Property="Background" Value="#60FF0000" />
+                        </Trigger>
+                    </ControlTemplate.Triggers>
+                </ControlTemplate>
+            </Button.Template>
+        </Button>
+    </Grid>
+</UserControl>

SafeExamBrowser.UserInterface/Controls/QuitButton.xaml.cs

@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2017 ETH Zürich, Educational Development and Technology (LET)
+ * 
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+using System.Windows;
+using System.Windows.Controls;
+
+namespace SafeExamBrowser.UserInterface.Controls
+{
+	public partial class QuitButton : UserControl
+	{
+		public QuitButton()
+		{
+			InitializeComponent();
+		}
+
+		private void Button_Click(object sender, RoutedEventArgs e)
+		{
+			Application.Current.Shutdown();
+		}
+	}
+}

SafeExamBrowser.UserInterface/SafeExamBrowser.UserInterface.csproj

@@ -56,6 +56,12 @@
     <Compile Include="Controls\ApplicationButton.xaml.cs">
       <DependentUpon>ApplicationButton.xaml</DependentUpon>
     </Compile>
+    <Compile Include="Controls\NotificationIcon.xaml.cs">
+      <DependentUpon>NotificationIcon.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Controls\QuitButton.xaml.cs">
+      <DependentUpon>QuitButton.xaml</DependentUpon>
+    </Compile>
     <Compile Include="Properties\AssemblyInfo.cs">
       <SubType>Code</SubType>
     </Compile>
@@ -76,7 +82,7 @@
       <DependentUpon>Taskbar.xaml</DependentUpon>
     </Compile>
     <Compile Include="UiElementFactory.cs" />
-    <Compile Include="Utilities\ApplicationIconResourceLoader.cs" />
+    <Compile Include="Utilities\IconResourceLoader.cs" />
     <Compile Include="ViewModels\DateTimeViewModel.cs" />
     <Compile Include="ViewModels\SplashScreenViewModel.cs" />
     <Compile Include="WpfMessageBox.cs" />
@@ -102,6 +108,14 @@
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
+    <Page Include="Controls\NotificationIcon.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
+    <Page Include="Controls\QuitButton.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
     <Page Include="SplashScreen.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
@@ -121,7 +135,7 @@
     <Resource Include="Images\SplashScreen.png" />
   </ItemGroup>
   <ItemGroup>
-    <Resource Include="Images\Icon.ico" />
+    <Resource Include="Images\SafeExamBrowser.ico" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>

SafeExamBrowser.UserInterface/SplashScreen.xaml

@@ -4,7 +4,7 @@
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         mc:Ignorable="d"
-        Title="SplashScreen" Height="200" Width="350" WindowStyle="None" AllowsTransparency="True" WindowStartupLocation="CenterScreen" Cursor="Wait" Icon="./Images/Icon.ico">
+        Title="SplashScreen" Height="200" Width="350" WindowStyle="None" AllowsTransparency="True" WindowStartupLocation="CenterScreen" Cursor="Wait" Icon="./Images/SafeExamBrowser.ico">
     <Window.Background>
         <SolidColorBrush Color="Black" Opacity="0.8" />
     </Window.Background>

SafeExamBrowser.UserInterface/Taskbar.xaml

@@ -6,15 +6,15 @@
         xmlns:local="clr-namespace:SafeExamBrowser.UserInterface.Controls"
         xmlns:s="clr-namespace:System;assembly=mscorlib"
         mc:Ignorable="d"
-        Title="Taskbar" Height="40" Width="750" WindowStyle="None" AllowsTransparency="True" Topmost="True" Icon="./Images/Icon.ico">
+        Title="Taskbar" Height="40" Width="750" WindowStyle="None" AllowsTransparency="True" Topmost="True" Icon="./Images/SafeExamBrowser.ico">
     <Window.Background>
         <SolidColorBrush Color="Black" Opacity="0.8" />
     </Window.Background>
     <Grid>
         <Grid.ColumnDefinitions>
             <ColumnDefinition Width="*" />
-            <ColumnDefinition Width="100" />
+            <ColumnDefinition Width="Auto" />
-            <ColumnDefinition Width="75" />
+            <ColumnDefinition Width="Auto" />
             <ColumnDefinition Width="40" />
         </Grid.ColumnDefinitions>
         <ScrollViewer Grid.Column="0" x:Name="ApplicationScrollViewer" VerticalScrollBarVisibility="Disabled" HorizontalScrollBarVisibility="Auto" PreviewMouseWheel="ApplicationScrollViewer_PreviewMouseWheel">
@@ -23,6 +23,13 @@
             </ScrollViewer.Resources>
             <StackPanel x:Name="ApplicationStackPanel" Orientation="Horizontal" />
         </ScrollViewer>
+        <ScrollViewer Grid.Column="1" VerticalScrollBarVisibility="Auto">
+            <ScrollViewer.Resources>
+                <s:Double x:Key="{x:Static SystemParameters.VerticalScrollBarWidthKey}">5</s:Double>
+            </ScrollViewer.Resources>
+            <WrapPanel x:Name="NotificationWrapPanel" Margin="10,2,5,2" MaxWidth="100" VerticalAlignment="Center" />
+        </ScrollViewer>
         <local:DateTimeControl Grid.Column="2" />
+        <local:QuitButton Grid.Column="3" />
     </Grid>
 </Window>

SafeExamBrowser.UserInterface/Taskbar.xaml.cs

@@ -7,6 +7,7 @@
  */
 
 using System.Windows;
+using System.Windows.Input;
 using SafeExamBrowser.Contracts.UserInterface;
 
 namespace SafeExamBrowser.UserInterface
@@ -18,7 +19,7 @@ namespace SafeExamBrowser.UserInterface
 			InitializeComponent();
 		}
 
-		public void AddButton(IApplicationButton button)
+		public void AddButton(ITaskbarButton button)
 		{
 			if (button is UIElement)
 			{
@@ -26,6 +27,14 @@ namespace SafeExamBrowser.UserInterface
 			}
 		}
 
+		public void AddNotification(ITaskbarNotification button)
+		{
+			if (button is UIElement)
+			{
+				NotificationWrapPanel.Children.Add(button as UIElement);
+			}
+		}
+
 		public void SetPosition(int x, int y)
 		{
 			Left = x;
@@ -38,7 +47,7 @@ namespace SafeExamBrowser.UserInterface
 			Height = height;
 		}
 
-		private void ApplicationScrollViewer_PreviewMouseWheel(object sender, System.Windows.Input.MouseWheelEventArgs e)
+		private void ApplicationScrollViewer_PreviewMouseWheel(object sender, MouseWheelEventArgs e)
 		{
 			var scrollAmount = 20;
 

SafeExamBrowser.UserInterface/UiElementFactory.cs

@@ -14,9 +14,14 @@ namespace SafeExamBrowser.UserInterface
 {
 	public class UiElementFactory : IUiElementFactory
 	{
-		public IApplicationButton CreateApplicationButton(IApplicationInfo info)
+		public ITaskbarButton CreateApplicationButton(IApplicationInfo info)
 		{
 			return new ApplicationButton(info);
 		}
+
+		public ITaskbarNotification CreateNotification(INotificationInfo info)
+		{
+			return new NotificationIcon(info);
+		}
 	}
 }

SafeExamBrowser.UserInterface/Utilities/IconResourceLoader.cs

@@ -15,22 +15,16 @@ using SafeExamBrowser.Contracts.Configuration;
 
 namespace SafeExamBrowser.UserInterface.Utilities
 {
-	internal static class ApplicationIconResourceLoader
+	internal static class IconResourceLoader
 	{
-		internal static UIElement Load(IApplicationIconResource resource)
+		internal static UIElement Load(IIconResource resource)
 		{
 			if (resource.IsBitmapResource)
 			{
-				var icon = new BitmapImage();
+				return new Image
-				var iconImage = new Image();
+				{
-
+					Source = new BitmapImage(resource.Uri)
-				icon.BeginInit();
+				};
-				icon.UriSource = resource.Uri;
-				icon.EndInit();
-
-				iconImage.Source = icon;
-
-				return iconImage;
 			}
 			else if (resource.IsXamlResource)
 			{

SafeExamBrowser/CompositionRoot.cs

@@ -25,6 +25,7 @@ namespace SafeExamBrowser
 		private IApplicationController browserController;
 		private IApplicationInfo browserInfo;
 		private IMessageBox messageBox;
+		private INotificationInfo aboutInfo;
 		private ILogger logger;
 		private IUiElementFactory uiFactory;
 
@@ -45,15 +46,16 @@ namespace SafeExamBrowser
 		{
 			browserController = new BrowserApplicationController();
 			browserInfo = new BrowserApplicationInfo();
-			messageBox = new WpfMessageBox();
 			logger = new Logger();
-			uiFactory = new UiElementFactory();
+			messageBox = new WpfMessageBox();
 			Taskbar = new Taskbar();
+			uiFactory = new UiElementFactory();
 
 			logger.Subscribe(new LogFileWriter(Settings));
 
+			aboutInfo = new AboutNotificationInfo(Text);
 			ShutdownController = new ShutdownController(logger, messageBox, Text);
-			StartupController = new StartupController(browserController, browserInfo, logger, messageBox, Settings, SplashScreen, Taskbar, Text, uiFactory);
+			StartupController = new StartupController(browserController, browserInfo, logger, messageBox, aboutInfo, Settings, SplashScreen, Taskbar, Text, uiFactory);
 		}
 	}
 }

SafeExamBrowser/SafeExamBrowser.csproj

@@ -52,7 +52,7 @@
     <StartupObject>SafeExamBrowser.App</StartupObject>
   </PropertyGroup>
   <PropertyGroup>
-    <ApplicationIcon>Icon.ico</ApplicationIcon>
+    <ApplicationIcon>SafeExamBrowser.ico</ApplicationIcon>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
@@ -129,7 +129,7 @@
     </BootstrapperPackage>
   </ItemGroup>
   <ItemGroup>
-    <Resource Include="Icon.ico" />
+    <Resource Include="SafeExamBrowser.ico" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>