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https://github.com/jellyfin/jellyfin.git
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427 lines
14 KiB
C#
427 lines
14 KiB
C#
using MediaBrowser.Common.Kernel;
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using MediaBrowser.Common.Logging;
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using MediaBrowser.Common.Updates;
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using MediaBrowser.Model.Logging;
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using Microsoft.Win32;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Deployment.Application;
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using System.Net.Cache;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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namespace MediaBrowser.Common.UI
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{
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/// <summary>
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/// Serves as a base Application class for both the UI and Server apps.
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/// </summary>
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public abstract class BaseApplication : Application, INotifyPropertyChanged
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{
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/// <summary>
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/// The single instance mutex
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/// </summary>
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private Mutex SingleInstanceMutex;
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/// <summary>
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/// Gets the name of the publisher.
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/// </summary>
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/// <value>The name of the publisher.</value>
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protected abstract string PublisherName { get; }
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/// <summary>
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/// Gets the name of the suite.
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/// </summary>
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/// <value>The name of the suite.</value>
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protected abstract string SuiteName { get; }
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/// <summary>
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/// Gets the name of the product.
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/// </summary>
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/// <value>The name of the product.</value>
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protected abstract string ProductName { get; }
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/// <summary>
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/// Gets the name of the uninstaller file.
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/// </summary>
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/// <value>The name of the uninstaller file.</value>
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protected abstract string UninstallerFileName { get; }
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/// <summary>
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/// Gets or sets a value indicating whether [last run at startup value].
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/// </summary>
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/// <value><c>null</c> if [last run at startup value] contains no value, <c>true</c> if [last run at startup value]; otherwise, <c>false</c>.</value>
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private bool? LastRunAtStartupValue { get; set; }
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/// <summary>
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/// Gets or sets the kernel.
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/// </summary>
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/// <value>The kernel.</value>
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protected IKernel Kernel { get; set; }
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/// <summary>
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/// Instantiates the kernel.
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/// </summary>
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/// <returns>IKernel.</returns>
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protected abstract IKernel InstantiateKernel();
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/// <summary>
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/// Instantiates the main window.
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/// </summary>
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/// <returns>Window.</returns>
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protected abstract Window InstantiateMainWindow();
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/// <summary>
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/// Occurs when [property changed].
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/// </summary>
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public event PropertyChangedEventHandler PropertyChanged;
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/// <summary>
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/// Gets or sets the logger.
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/// </summary>
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/// <value>The logger.</value>
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protected ILogger Logger { get; set; }
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/// <summary>
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/// Initializes a new instance of the <see cref="BaseApplication" /> class.
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/// </summary>
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protected BaseApplication()
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{
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Logger = LogManager.GetLogger("App");
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}
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/// <summary>
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/// Called when [property changed].
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/// </summary>
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/// <param name="info">The info.</param>
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public void OnPropertyChanged(String info)
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{
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if (PropertyChanged != null)
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{
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try
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{
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PropertyChanged(this, new PropertyChangedEventArgs(info));
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}
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catch (Exception ex)
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{
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Logger.ErrorException("Error in event handler", ex);
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}
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}
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}
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/// <summary>
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/// Raises the <see cref="E:System.Windows.Application.Startup" /> event.
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/// </summary>
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/// <param name="e">A <see cref="T:System.Windows.StartupEventArgs" /> that contains the event data.</param>
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protected override void OnStartup(StartupEventArgs e)
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{
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bool createdNew;
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SingleInstanceMutex = new Mutex(true, @"Local\" + GetType().Assembly.GetName().Name, out createdNew);
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if (!createdNew)
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{
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SingleInstanceMutex = null;
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Shutdown();
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return;
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}
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AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
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LoadKernel();
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SystemEvents.SessionEnding += SystemEvents_SessionEnding;
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}
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/// <summary>
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/// Handles the UnhandledException event of the CurrentDomain control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="UnhandledExceptionEventArgs" /> instance containing the event data.</param>
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void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
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{
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var exception = (Exception) e.ExceptionObject;
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Logger.ErrorException("UnhandledException", exception);
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MessageBox.Show("Unhandled exception: " + exception.Message);
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}
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/// <summary>
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/// Handles the SessionEnding event of the SystemEvents control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="SessionEndingEventArgs" /> instance containing the event data.</param>
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void SystemEvents_SessionEnding(object sender, SessionEndingEventArgs e)
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{
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// Try to shut down gracefully
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Shutdown();
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}
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/// <summary>
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/// Loads the kernel.
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/// </summary>
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protected virtual async void LoadKernel()
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{
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Kernel = InstantiateKernel();
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try
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{
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InstantiateMainWindow().Show();
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var now = DateTime.UtcNow;
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await Kernel.Init();
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var done = (DateTime.UtcNow - now);
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Logger.Info("Kernel.Init completed in {0}{1} minutes and {2} seconds.", done.Hours > 0 ? done.Hours + " Hours " : "", done.Minutes, done.Seconds);
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await OnKernelLoaded();
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}
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catch (Exception ex)
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{
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Logger.ErrorException("Error launching application", ex);
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MessageBox.Show("There was an error launching Media Browser: " + ex.Message);
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// Shutdown the app with an error code
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Shutdown(1);
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}
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}
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/// <summary>
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/// Called when [kernel loaded].
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/// </summary>
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/// <returns>Task.</returns>
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protected virtual Task OnKernelLoaded()
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{
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return Task.Run(() =>
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{
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Kernel.ApplicationRestartRequested += Kernel_ApplicationRestartRequested;
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Kernel.ConfigurationUpdated += Kernel_ConfigurationUpdated;
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ConfigureClickOnceStartup();
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});
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}
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/// <summary>
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/// Handles the ConfigurationUpdated event of the Kernel control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
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void Kernel_ConfigurationUpdated(object sender, EventArgs e)
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{
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if (!LastRunAtStartupValue.HasValue || LastRunAtStartupValue.Value != Kernel.Configuration.RunAtStartup)
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{
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ConfigureClickOnceStartup();
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}
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}
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/// <summary>
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/// Configures the click once startup.
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/// </summary>
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private void ConfigureClickOnceStartup()
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{
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if (!ApplicationDeployment.IsNetworkDeployed)
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{
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return;
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}
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try
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{
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var clickOnceHelper = new ClickOnceHelper(PublisherName, ProductName, SuiteName);
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if (Kernel.Configuration.RunAtStartup)
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{
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clickOnceHelper.UpdateUninstallParameters(UninstallerFileName);
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clickOnceHelper.AddShortcutToStartup();
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}
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else
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{
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clickOnceHelper.RemoveShortcutFromStartup();
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}
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LastRunAtStartupValue = Kernel.Configuration.RunAtStartup;
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}
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catch (Exception ex)
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{
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Logger.ErrorException("Error configuring ClickOnce", ex);
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}
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}
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/// <summary>
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/// Handles the ApplicationRestartRequested event of the Kernel control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
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void Kernel_ApplicationRestartRequested(object sender, EventArgs e)
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{
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Restart();
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}
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/// <summary>
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/// Restarts this instance.
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/// </summary>
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public void Restart()
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{
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Dispatcher.Invoke(ReleaseMutex);
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Kernel.Dispose();
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System.Windows.Forms.Application.Restart();
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Dispatcher.Invoke(Shutdown);
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}
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/// <summary>
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/// Releases the mutex.
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/// </summary>
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private void ReleaseMutex()
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{
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if (SingleInstanceMutex == null)
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{
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return;
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}
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SingleInstanceMutex.ReleaseMutex();
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SingleInstanceMutex.Close();
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SingleInstanceMutex.Dispose();
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SingleInstanceMutex = null;
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}
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/// <summary>
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/// Raises the <see cref="E:System.Windows.Application.Exit" /> event.
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/// </summary>
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/// <param name="e">An <see cref="T:System.Windows.ExitEventArgs" /> that contains the event data.</param>
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protected override void OnExit(ExitEventArgs e)
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{
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ReleaseMutex();
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base.OnExit(e);
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Kernel.Dispose();
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}
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/// <summary>
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/// Signals the external command line args.
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/// </summary>
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/// <param name="args">The args.</param>
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/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
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public bool SignalExternalCommandLineArgs(IList<string> args)
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{
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OnSecondInstanceLaunched(args);
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return true;
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}
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/// <summary>
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/// Called when [second instance launched].
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/// </summary>
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/// <param name="args">The args.</param>
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protected virtual void OnSecondInstanceLaunched(IList<string> args)
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{
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if (MainWindow.WindowState == WindowState.Minimized)
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{
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MainWindow.WindowState = WindowState.Maximized;
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}
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}
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/// <summary>
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/// Gets the image.
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/// </summary>
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/// <param name="uri">The URI.</param>
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/// <returns>Image.</returns>
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/// <exception cref="System.ArgumentNullException">uri</exception>
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public Image GetImage(string uri)
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{
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if (string.IsNullOrEmpty(uri))
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{
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throw new ArgumentNullException("uri");
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}
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return GetImage(new Uri(uri));
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}
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/// <summary>
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/// Gets the image.
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/// </summary>
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/// <param name="uri">The URI.</param>
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/// <returns>Image.</returns>
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/// <exception cref="System.ArgumentNullException">uri</exception>
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public Image GetImage(Uri uri)
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{
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if (uri == null)
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{
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throw new ArgumentNullException("uri");
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}
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return new Image { Source = GetBitmapImage(uri) };
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}
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/// <summary>
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/// Gets the bitmap image.
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/// </summary>
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/// <param name="uri">The URI.</param>
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/// <returns>BitmapImage.</returns>
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/// <exception cref="System.ArgumentNullException">uri</exception>
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public BitmapImage GetBitmapImage(string uri)
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{
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if (string.IsNullOrEmpty(uri))
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{
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throw new ArgumentNullException("uri");
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}
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return GetBitmapImage(new Uri(uri));
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}
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/// <summary>
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/// Gets the bitmap image.
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/// </summary>
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/// <param name="uri">The URI.</param>
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/// <returns>BitmapImage.</returns>
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/// <exception cref="System.ArgumentNullException">uri</exception>
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public BitmapImage GetBitmapImage(Uri uri)
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{
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if (uri == null)
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{
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throw new ArgumentNullException("uri");
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}
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var bitmap = new BitmapImage
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{
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CreateOptions = BitmapCreateOptions.DelayCreation,
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CacheOption = BitmapCacheOption.OnDemand,
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UriCachePolicy = new RequestCachePolicy(RequestCacheLevel.CacheIfAvailable)
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};
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bitmap.BeginInit();
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bitmap.UriSource = uri;
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bitmap.EndInit();
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RenderOptions.SetBitmapScalingMode(bitmap, BitmapScalingMode.Fant);
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return bitmap;
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}
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/// <summary>
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/// Runs the application.
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/// </summary>
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/// <typeparam name="TApplicationType">The type of the T application type.</typeparam>
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/// <param name="uniqueKey">The unique key.</param>
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public static void RunApplication<TApplicationType>(string uniqueKey)
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where TApplicationType : BaseApplication, IApplication, new()
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{
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var application = new TApplicationType();
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application.InitializeComponent();
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application.Run();
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}
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}
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/// <summary>
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/// Interface IApplication
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/// </summary>
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public interface IApplication
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{
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/// <summary>
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/// Initializes the component.
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/// </summary>
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void InitializeComponent();
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}
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}
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