/// <summary>
/// Called when [back requested] event is fired.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="backRequestedEventArgs">The <see cref="BackRequestedEventArgs"/> instance containing the event data.</param>
private void OnBackRequested(object sender, BackRequestedEventArgs backRequestedEventArgs)
{
if (backRequestedEventArgs.Handled)
{
return;
}
if (NavigationFrame.CanGoBack)
{
backRequestedEventArgs.Handled = true;
var previousPage = NavigationFrame.BackStack.Last();
if (previousPage.SourcePageType == typeof(SamplePicker))
{
HideInfoArea();
}
else
{
ShowInfoArea();
}
NavigationFrame.GoBack();
}
}
public void GoBack()
{
if (NavigationFrame.CanGoBack)
{
NavigationFrame.GoBack();
}
}
private void NavView_BackRequested(Microsoft.UI.Xaml.Controls.NavigationView sender, Microsoft.UI.Xaml.Controls.NavigationViewBackRequestedEventArgs args)
{
if (NavigationFrame.CanGoBack)
{
NavigationFrame.GoBack();
}
}
public void GoBack()
{
if (NavigationFrame?.CanGoBack ?? false)
{
NavigationFrame.GoBack();
}
}
/// <summary>
/// Goes backward in the back stack.
/// </summary>
public override void GoBack()
{
//Navigation is asynchronous so it had to be synchronized or else it would cause problems with an earlier app I was writing.
navigationLock.WaitOne();
navigationLock.Reset();
//This is intentional(?)
NavigationFrame.GoBack();
}
private void NavigationView_OnBackRequested(NavigationView sender, NavigationViewBackRequestedEventArgs args)
{
if (NavigationFrame.BackStack.LastOrDefault() is PageStackEntry entry)
{
NavigationView.SelectedItem = NavigationItems.First(item => item.PageType == entry.SourcePageType).Item;
NavigationFrame.GoBack();
}
}
/// <summary>
/// Called when [back requested] event is fired.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="backRequestedEventArgs">The <see cref="BackRequestedEventArgs"/> instance containing the event data.</param>
private void OnBackRequested(object sender, BackRequestedEventArgs backRequestedEventArgs)
{
if (NavigationFrame.CanGoBack)
{
backRequestedEventArgs.Handled = true;
HideInfoArea();
NavigationFrame.GoBack();
}
}
/// <summary>
/// Go backward in the navigation chain
/// </summary>
public bool GoBack()
{
Initialize();
if (!CanGoBack)
{
return(false);
}
NavigationFrame.GoBack();
return(true);
}
/// <summary>
/// Called when [back requested] event is fired.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="backRequestedEventArgs">The <see cref="BackRequestedEventArgs"/> instance containing the event data.</param>
private void OnBackRequested(object sender, BackRequestedEventArgs backRequestedEventArgs)
{
if (backRequestedEventArgs.Handled)
{
return;
}
if (NavigationFrame.CanGoBack)
{
NavigationFrame.GoBack();
backRequestedEventArgs.Handled = true;
}
}
private void HamburgerMenu_OnItemClick(object sender, ItemClickEventArgs e)
{
var category = e.ClickedItem as SampleCategory;
if (category != null)
{
while (NavigationFrame.BackStack.Count > 0)
{
if (NavigationFrame.CanGoBack)
{
NavigationFrame.GoBack();
}
}
NavigationFrame.Navigate(typeof(SamplePicker), category);
}
}
/// <summary>
/// KeyDown event
/// </summary>
private void CoreWindow_KeyDown(CoreWindow sender, KeyEventArgs args)
{
if (args.VirtualKey == Windows.System.VirtualKey.Back)
{
Object f = Windows.UI.Xaml.Input.FocusManager.GetFocusedElement();
if (f != null)
{
if (NavigationFrame.CanGoBack)
{
if (f.GetType() == typeof(Windows.UI.Xaml.Controls.TextBox))
{
return;
}
NavigationFrame.GoBack();
}
}
}
}
/// <summary>
/// Called when [back requested] event is fired.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="backRequestedEventArgs">The <see cref="BackRequestedEventArgs"/> instance containing the event data.</param>
private void OnBackRequested(object sender, BackRequestedEventArgs backRequestedEventArgs)
{
if (backRequestedEventArgs.Handled)
{
return;
}
if (NavigationFrame.CanGoBack)
{
backRequestedEventArgs.Handled = true;
NavigationFrame.GoBack();
}
else
{
// To prevent the user from leaving the application
// with a back key stroke
backRequestedEventArgs.Handled = true;
}
}
/// <summary>
/// Called when [back requested] event is fired.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="backRequestedEventArgs">The <see cref="BackRequestedEventArgs"/> instance containing the event data.</param>
private void OnBackRequested(object sender, BackRequestedEventArgs backRequestedEventArgs)
{
if (backRequestedEventArgs.Handled)
{
return;
}
if (SamplePickerGrid.Visibility == Visibility.Visible)
{
HideSamplePicker();
backRequestedEventArgs.Handled = true;
}
else if (NavigationFrame.CanGoBack)
{
NavigationFrame.GoBack();
HideSamplePicker();
backRequestedEventArgs.Handled = true;
}
}
private void Animation_Completed(object sender, EventArgs e)
{
switch (navArgs.NavigationMode)
{
case NavigationMode.New:
if (navArgs.Uri == null)
{
NavigationFrame.Navigate(navArgs.Content);
}
else
{
NavigationFrame.Navigate(navArgs.Uri);
}
break;
case NavigationMode.Back:
NavigationFrame.GoBack();
break;
case NavigationMode.Forward:
NavigationFrame.GoBack();
break;
case NavigationMode.Refresh:
NavigationFrame.GoBack();
break;
default:
break;
}
inNavigation = false;
DoubleAnimation animation = new DoubleAnimation();
animation.From = 0f;
animation.To = 1f;
animation.Duration = new Duration(TimeSpan.FromMilliseconds(200));
NavigationFrame.BeginAnimation(OpacityProperty, animation);
}
public override void Execute(object parameter) => NavigationFrame.GoBack();
/// <summary>
/// Navigate to the last page.
/// </summary>
public void GoBack()
{
NavigationFrame.GoBack();
}
private async void ApplicationBase_Startup(object sender, StartupEventArgs e)
{
if (this.isInitialized)
{
return;
}
this.isInitialized = true;
if (e.Args != null && e.Args.Length > 0 && e.Args[0] == "registerUriScheme")
{
try
{
RegisterUrlProtocols();
}
catch
{
// don't show anything... This will only annoy users
}
this.Shutdown();
return;
}
ParamPassing.Configure(e.Args, x =>
{
x.IsSingleInstance = this.IsSingleInstance;
x.BringToFront = this.ShouldBringToFront;
x.RandomSelectInstance = true;
x.DataSeparator = '\n';
x.ParameterPassedCallback = new Action <string[]>(args =>
{
if (args != null && args.Length > 0 && args[0].IndexOf(':') > 0 &&
ApplicationUrlProtocols.Contains(args[0].Split(':').First(),
new DynamicEqualityComparer <string>((a, b) => string.Equals(a, b, StringComparison.CurrentCultureIgnoreCase))))
{
try
{
this.OnActivationProtocol(new Uri(args[0]));
}
catch
{
// if the application recieves malformed or bad urls... We should just ignore it here
}
}
else
{
this.OnActivated(args);
}
});
x.ExitDelegate = () =>
{
this.Shutdown();
Environment.Exit(0);
};
});
if (this.IsSingleInstance && ParamPassing.AreOtherInstanceActive)
{
if (ParamPassing.BringToFront())
{
this.Shutdown();
}
}
else
{
if (this.IsSinglePage)
{
WindowType windowType = null;
var window = Common.CreateWindow(ref windowType);
window.ContentTemplateSelector = new CauldronTemplateSelector();
window.MinHeight = 353;
window.MinWidth = 502;
window.ShowInTaskbar = true;
window.Topmost = false;
window.WindowStartupLocation = WindowStartupLocation.Manual;
window.WindowState = WindowState.Normal;
window.Icon = await UnsafeNative.ExtractAssociatedIcon(Assembly.GetEntryAssembly().Location).ToBitmapImageAsync();
window.Title = ApplicationInfo.ApplicationName;
PersistentWindowInformation.Load(window, this.GetType());
window.SizeChanged += (s, e1) =>
{
if (window.WindowState == WindowState.Normal)
{
PersistentWindowProperties.SetHeight(window, e1.NewSize.Height);
PersistentWindowProperties.SetWidth(window, e1.NewSize.Width);
}
};
window.Closing += (s, e1) => PersistentWindowInformation.Save(window, this.GetType());
window.Show();
window.Content = this;
window.Activate();
await this.OnPreload();
var rootFrame = new NavigationFrame();
rootFrame.DataContext = this;
window.Content = rootFrame;
window.InputBindings.Add(new KeyBinding(new RelayCommand(async() => { await rootFrame.GoBack(); }, () => rootFrame.CanGoBack), Key.Back, ModifierKeys.None));
}
else if (this.GetType().GetCustomAttribute <ViewAttribute>() != null || Application.Current.Resources.Contains($"View_{this.GetType().Name}"))
{
var oldShutdownMode = Application.Current.ShutdownMode;
Application.Current.ShutdownMode = ShutdownMode.OnExplicitShutdown;
this.Navigator.As <Navigator>()?.NavigateInternal <ApplicationBase>(this, null, null);
await this.OnPreload();
if (Application.Current.MainWindow == null)
{
Application.Current.ShutdownMode = ShutdownMode.OnExplicitShutdown;
Application.Current.Shutdown();
return;
}
Application.Current.MainWindow.Activate();
this.Navigator.TryClose(this);
Application.Current.ShutdownMode = oldShutdownMode;
}
Application.Current.MainWindow = null;
await this.OnStartup(new LaunchActivatedEventArgs(e.Args));
if (Application.Current.MainWindow != null)
{
Application.Current.MainWindow.AddHookParameterPassing();
Application.Current.MainWindow.Activate();
}
}
}
private async void ApplicationBase_Startup(object sender, StartupEventArgs e)
{
this.isInitialized = true;
ParamPassing.Configure(e.Args, x =>
{
x.IsSingleInstance = this.IsSingleInstance;
x.BringToFront = this.ShouldBringToFront;
x.RandomSelectInstance = true;
x.DataSeparator = '\n';
x.ParameterPassedCallback = new Action <string[]>(args => this.OnActivated(args));
x.ExitDelegate = () =>
{
this.ShutdownMode = ShutdownMode.OnExplicitShutdown;
this.Shutdown();
};
});
if (this.IsSingleInstance && ParamPassing.AreOtherInstanceActive)
{
if (ParamPassing.BringToFront())
{
this.ShutdownMode = ShutdownMode.OnExplicitShutdown;
this.Shutdown();
}
}
else
{
if (this.IsSinglePage)
{
WindowType windowType = null;
var window = Common.CreateWindow(ref windowType);
window.ContentTemplateSelector = new CauldronTemplateSelector();
window.MinHeight = 353;
window.MinWidth = 502;
window.ShowInTaskbar = true;
window.Topmost = false;
window.WindowStartupLocation = WindowStartupLocation.Manual;
window.WindowState = WindowState.Normal;
window.Icon = await UnsafeNative.ExtractAssociatedIcon(Assembly.GetEntryAssembly().Location).ToBitmapImageAsync();
window.Title = ApplicationInfo.ApplicationName;
PersistentWindowInformation.Load(window, this.GetType());
window.SizeChanged += (s, e1) =>
{
if (window.WindowState == WindowState.Normal)
{
PersistentWindowProperties.SetHeight(window, e1.NewSize.Height);
PersistentWindowProperties.SetWidth(window, e1.NewSize.Width);
}
};
window.Closing += (s, e1) => PersistentWindowInformation.Save(window, this.GetType());
window.Show();
window.Content = this;
window.Activate();
await this.OnPreload();
var rootFrame = new NavigationFrame();
rootFrame.DataContext = this;
window.Content = rootFrame;
window.InputBindings.Add(new KeyBinding(new RelayCommand(async() => { await rootFrame.GoBack(); }, () => rootFrame.CanGoBack), Key.Back, ModifierKeys.None));
}
else if (this.GetType().GetCustomAttribute <ViewAttribute>() != null || Application.Current.Resources.Contains($"View_{this.GetType().Name}"))
{
this.Navigator.As <Navigator>()?.NavigateInternal <ApplicationBase>(this, null, null);
await this.OnPreload();
Application.Current.MainWindow.Activate();
}
await this.OnStartup(new LaunchActivatedEventArgs(e.Args));
this.Navigator.TryClose(this);
if (Application.Current.MainWindow != null)
{
Application.Current.MainWindow.AddHookParameterPassing();
Application.Current.MainWindow.Activate();
}
}
}
private async void ApplicationBase_Startup(object sender, StartupEventArgs e)
{
this.isInitialized = true;
if (this.UrlProtocolNames != null && this.UrlProtocolNames.Length > 0)
{
for (int i = 0; i < this.UrlProtocolNames.Length; i++)
{
if (UrlProtocol.RequiresRegistration(this.UrlProtocolNames[i]))
{
this.OnUrlProtocolRegistration(this.UrlProtocolNames[i]);
}
}
if (e.Args.Length > 0 && e.Args[0] == "registerUriScheme")
{
this.ShutdownMode = ShutdownMode.OnExplicitShutdown;
this.Shutdown(0);
return;
}
}
// If an application is being run by VS then it will have the .vshost suffix to its proc
// name. We have to also check them
var proc = Process.GetCurrentProcess();
var processName = proc.ProcessName.Replace(".vshost", "");
var processes = Process.GetProcesses().Where(x => (x.ProcessName == processName || x.ProcessName == proc.ProcessName || x.ProcessName == proc.ProcessName + ".vshost") && x.Id != proc.Id).ToArray();
// Special case ... If we recieve a call from an uri protocol we will be passing this to
// all instances of the application
if (this.UrlProtocolNames != null &&
this.UrlProtocolNames.Length > 0 &&
e.Args.Length > 0 &&
processes.Length > 0 &&
this.IsUrlProtocol(e.Args))
{
foreach (var process in processes.Where(x => x.Id != proc.Id))
{
Win32Api.SendMessage(process.MainWindowHandle, $"{e.Args.Join("\n")}");
}
this.ShutdownMode = ShutdownMode.OnExplicitShutdown;
this.Shutdown();
}
if (this.IsSingleInstance && processes.Length > 0)
{
var hwnd = processes[0].MainWindowHandle;
if (hwnd != IntPtr.Zero)
{
Win32Api.SendMessage(hwnd, $"{e.Args.Join("\n")}");
this.ShutdownMode = ShutdownMode.OnExplicitShutdown;
this.Shutdown();
}
}
else
{
if (this.IsSinglePage)
{
WindowType windowType = null;
var window = Common.CreateWindow(ref windowType);
window.ContentTemplateSelector = new CauldronTemplateSelector();
window.MinHeight = 353;
window.MinWidth = 502;
window.ShowInTaskbar = true;
window.Topmost = false;
window.WindowStartupLocation = WindowStartupLocation.Manual;
window.WindowState = WindowState.Normal;
window.Icon = await Win32Api.ExtractAssociatedIcon(Assembly.GetEntryAssembly().Location).ToBitmapImageAsync();
window.Title = ApplicationInfo.ApplicationName;
PersistentWindowInformation.Load(window, this.GetType());
window.SizeChanged += (s, e1) =>
{
if (window.WindowState == WindowState.Normal)
{
PersistentWindowProperties.SetHeight(window, e1.NewSize.Height);
PersistentWindowProperties.SetWidth(window, e1.NewSize.Width);
}
};
window.Closing += (s, e1) => PersistentWindowInformation.Save(window, this.GetType());
window.Show();
window.Content = this;
window.Activate();
await this.OnPreload();
var rootFrame = new NavigationFrame();
rootFrame.DataContext = this;
window.Content = rootFrame;
window.InputBindings.Add(new KeyBinding(new RelayCommand(async() => { await rootFrame.GoBack(); }, () => rootFrame.CanGoBack), Key.Back, ModifierKeys.None));
}
else if (this.GetType().GetCustomAttribute <ViewAttribute>() != null || Application.Current.Resources.Contains($"View_{this.GetType().Name}"))
{
this.Navigator.As <Navigator>()?.NavigateInternal <ApplicationBase>(this, null, null);
await this.OnPreload();
Application.Current.MainWindow.Activate();
}
await this.OnStartup(new LaunchActivatedEventArgs(e.Args));
this.Navigator.TryClose(this);
if (Application.Current.MainWindow != null)
{
HwndSource.FromHwnd(Application.Current.MainWindow.GetWindowHandle())?.AddHook(new HwndSourceHook(HandleMessages));
Application.Current.MainWindow.Activate();
}
}
}