/// <summary>
/// Suspends the React instance manager.
/// </summary>
/// <param name="host">The React Native host.</param>
public static void OnSuspend(this ReactNativeHost host)
{
if (host.HasInstance)
{
host.ReactInstanceManager.OnSuspend();
}
}
/// <summary>
/// Informs the React instance manager that the application is leaving
/// background mode.
/// </summary>
/// <param name="host">The React Native host.</param>
public static void OnLeavingBackground(this ReactNativeHost host)
{
if (host.HasInstance)
{
host.ReactInstanceManager.OnLeavingBackground();
}
}
/// <summary>
/// Applies the activation arguments.
/// </summary>
/// <param name="host">The React Native host.</param>
/// <param name="arguments">The arguments.</param>
public static void ApplyArguments(this ReactNativeHost host, string arguments)
{
if (!string.IsNullOrEmpty(arguments) && host.HasInstance)
{
var args = arguments.Split(',');
var index = Array.IndexOf(args, "remoteDebugging");
if (index < 0)
{
return;
}
if (args.Length <= index + 1)
{
throw new ArgumentException("Expected value for remoteDebugging argument.", nameof(arguments));
}
bool isRemoteDebuggingEnabled;
if (bool.TryParse(args[index + 1], out isRemoteDebuggingEnabled))
{
if (host.HasInstance)
{
host.ReactInstanceManager.DevSupportManager.IsRemoteDebuggingEnabled = isRemoteDebuggingEnabled;
}
}
}
}
private static void OnAcceleratorKeyActivated(ReactNativeHost host, CoreDispatcher sender, AcceleratorKeyEventArgs e)
{
if (host.HasInstance)
{
var reactInstanceManager = host.ReactInstanceManager;
if (reactInstanceManager.DevSupportManager.IsEnabled)
{
if (e.VirtualKey == VirtualKey.Shift)
{
s_isShiftKeyDown = e.EventType == CoreAcceleratorKeyEventType.KeyDown;
}
else if (e.VirtualKey == VirtualKey.Control)
{
s_isControlKeyDown = e.EventType == CoreAcceleratorKeyEventType.KeyDown;
}
else if (e.EventType == CoreAcceleratorKeyEventType.KeyDown && s_isShiftKeyDown && e.VirtualKey == VirtualKey.F10)
{
reactInstanceManager.DevSupportManager.ShowDevOptionsDialog();
}
else if (e.EventType == CoreAcceleratorKeyEventType.KeyUp && s_isControlKeyDown && e.VirtualKey == VirtualKey.R)
{
reactInstanceManager.DevSupportManager.HandleReloadJavaScript();
}
}
}
}
private static async void OnAcceleratorKeyActivated(ReactNativeHost host, CoreDispatcher sender, AcceleratorKeyEventArgs e)
{
if (host.HasInstance)
{
var reactInstanceManager = host.ReactInstanceManager;
if (reactInstanceManager.DevSupportManager.IsEnabled)
{
if (e.VirtualKey == VirtualKey.Shift)
{
s_isShiftKeyDown = e.EventType == CoreAcceleratorKeyEventType.KeyDown;
}
else if (e.VirtualKey == VirtualKey.Control)
{
s_isControlKeyDown = e.EventType == CoreAcceleratorKeyEventType.KeyDown;
}
else if ((s_isShiftKeyDown && e.VirtualKey == VirtualKey.F10) ||
(e.EventType == CoreAcceleratorKeyEventType.KeyDown && e.VirtualKey == VirtualKey.Menu))
{
reactInstanceManager.DevSupportManager.ShowDevOptionsDialog();
}
else if (e.EventType == CoreAcceleratorKeyEventType.KeyUp && s_isControlKeyDown && e.VirtualKey == VirtualKey.R)
{
await reactInstanceManager.DevSupportManager.CreateReactContextFromPackagerAsync(CancellationToken.None).ConfigureAwait(false);
}
}
}
}
private static void OnBackRequested(ReactNativeHost host, object sender, BackRequestedEventArgs e)
{
if (host.HasInstance)
{
host.ReactInstanceManager.OnBackPressed();
e.Handled = true;
}
}
public static void OnCreate(this ReactRootView rootView, ReactNativeHost host)
{
rootView.Background = (Brush)Application.Current.Resources["ApplicationPageBackgroundThemeBrush"];
if (DispatcherHelpers.IsOnDispatcher())
{
SystemNavigationManager.GetForCurrentView().BackRequested += (sender, e) => OnBackRequested(host, sender, e);
Window.Current.CoreWindow.Dispatcher.AcceleratorKeyActivated += (sender, e) => OnAcceleratorKeyActivated(host, sender, e);
}
}
/// <summary>
/// Called when the application is first initialized.
/// </summary>
/// <param name="host">The React Native host.</param>
/// <param name="componentName">The component name.</param>
/// <param name="initialProps">The initial props.</param>
public static ReactRootView OnCreate(this ReactNativeHost host, string componentName, JObject initialProps)
{
var rootView = host.CreateRootView();
rootView.OnCreate(host);
rootView.StartReactApplication(
host.ReactInstanceManager,
componentName,
initialProps);
return(rootView);
}
/// <summary>
/// Resumes the React instance manager.
/// </summary>
/// <param name="host">The React Native host.</param>
/// <param name="onBackPressed">
/// The action to take when back is pressed.
/// </param>
public static void OnResume(this ReactNativeHost host, Action onBackPressed)
{
host.ReactInstanceManager.OnResume(onBackPressed);
}
/// <summary>
/// Called when the application is first initialized.
/// </summary>
/// <param name="host">The React Native host.</param>
/// <param name="initialProps">The initial props.</param>
public static ReactRootView OnCreate(this ReactNativeHost host, JObject initialProps)
{
return(host.OnCreate(host.MainComponentName, initialProps));
}
/// <summary>
/// Called when the application is first initialized.
/// </summary>
/// <param name="host">The React Native host.</param>
public static ReactRootView OnCreate(this ReactNativeHost host)
{
return(OnCreate(host, null));
}
