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SImplified splashscreen
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jerrynixon committed Sep 22, 2016
1 parent 6adb5d5 commit dc3cbe4
Showing 1 changed file with 71 additions and 47 deletions.
118 changes: 71 additions & 47 deletions Template10 (Library)/Common/BootStrapper.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -61,8 +61,8 @@ public BootStrapper()
DebugWrite("base.Constructor");

Current = this;
Resuming += HandleResuming;
Suspending += HandleSuspending;
Resuming += CallResuming;
Suspending += CallHandleSuspendingAsync;
}

private void Loaded()
Expand Down Expand Up @@ -240,16 +240,7 @@ This is okay & by design.
*/


if (EnableAutoRestoreAfterTerminated)
{
var launchedEvent = e as ILaunchActivatedEventArgs;

if (DetermineStartCause(e) == AdditionalKinds.Primary || launchedEvent?.TileId == "")
{
restored = await NavigationService.RestoreSavedNavigationAsync();
DebugWrite($"{nameof(restored)}:{restored}", caller: nameof(NavigationService.RestoreSavedNavigationAsync));
}
}
restored = await CallAutoRestoreAsync(e, restored);
break;
}
case ApplicationExecutionState.ClosedByUser:
Expand Down Expand Up @@ -277,8 +268,6 @@ This is okay & by design.
CallActivateWindow(WindowLogic.ActivateWindowSources.Launching);
}

public bool EnableAutoRestoreAfterTerminated { get; set; } = true;

private void BackHandler(object sender, BackRequestedEventArgs args)
{
DebugWrite();
Expand Down Expand Up @@ -694,7 +683,7 @@ protected virtual Frame CreateRootFrame(IActivatedEventArgs e)
return new Frame();
}

private async void HandleResuming(object sender, object e)
private async void CallResuming(object sender, object e)
{
DebugWrite(caller: nameof(Resuming));

Expand All @@ -712,55 +701,91 @@ private async void HandleResuming(object sender, object e)
}
}

[Obsolete("Use AutoRestoreAfterTerminated")]
public bool EnableAutoRestoreAfterTerminated { get; set; } = true;
public bool AutoRestoreAfterTerminated { get; set; } = true;
public bool AutoExtendExecutionSession { get; set; } = true;
public bool AutoSuspendAllFrames { get; set; } = true;

private void HandleSuspending(object sender, SuspendingEventArgs e)
private async Task<bool> CallAutoRestoreAsync(ILaunchActivatedEventArgs e, bool restored)
{
DebugWrite();
if (!EnableAutoRestoreAfterTerminated || !AutoRestoreAfterTerminated)
return false;
return await AutoRestoreAsync(e);
}

// one, global deferral
async void CallHandleSuspendingAsync(object sender, SuspendingEventArgs e)
{
var deferral = e.SuspendingOperation.GetDeferral();
try
{
await AutoSuspendAllFramesAsync(sender, e, AutoSuspendAllFrames, AutoExtendExecutionSession);
await OnSuspendingAsync(sender, e, (OriginalActivatedArgs as LaunchActivatedEventArgs)?.PrelaunchActivated ?? false);
}
finally
{
deferral.Complete();
}
}

var suspend = new Action(async () =>
private async Task<bool> AutoRestoreAsync(ILaunchActivatedEventArgs e)
{
var restored = false;
var launchedEvent = e as ILaunchActivatedEventArgs;
if (DetermineStartCause(e) == AdditionalKinds.Primary || launchedEvent?.TileId == "")
{
try
{
//allow only main view NavigationService as others won't be able to use Dispatcher and processing will stuck
var services = WindowWrapper.ActiveWrappers.SelectMany(x => x.NavigationServices).Where(x => x.IsInMainView);
foreach (INavigationService nav in services)
{
// date the cache (which marks the date/time it was suspended)
nav.FrameFacade.SetFrameState(CacheDateKey, DateTime.Now.ToString());
// call view model suspend (OnNavigatedfrom)
DebugWrite($"Nav.FrameId:{nav.FrameFacade.FrameId}", caller: nameof(nav.SuspendingAsync));
await (nav as INavigationService).GetDispatcherWrapper().DispatchAsync(async () => await nav.SuspendingAsync());
}
restored = await NavigationService.RestoreSavedNavigationAsync();
DebugWrite($"{nameof(restored)}:{restored}", caller: nameof(NavigationService.RestoreSavedNavigationAsync));
}
return restored;
}

// call system-level suspend
DebugWrite($"Calling. OnSuspendingAsync {(OriginalActivatedArgs as LaunchActivatedEventArgs)?.PrelaunchActivated ?? false}", caller: nameof(OnSuspendingAsync));
await OnSuspendingAsync(sender, e, (OriginalActivatedArgs as LaunchActivatedEventArgs)?.PrelaunchActivated ?? false);
}
catch (Exception ex)
{
DebugWrite($"While suspending {ex} {ex.Message}", caller: nameof(HandleSuspending));
}
finally { deferral.Complete(); }
});
private async Task AutoSuspendAllFramesAsync(object sender, SuspendingEventArgs e, bool autoSuspendAllFrames, bool autoExtendExecutionSession)
{
DebugWrite($"autoSuspendAllFrames: {autoSuspendAllFrames}, autoExtendExecutionSession: {autoExtendExecutionSession}");

if (AutoExtendExecutionSession)
if (!autoSuspendAllFrames)
{
return;
}

if (autoExtendExecutionSession)
{
using (var session = new Windows.ApplicationModel.ExtendedExecution.ExtendedExecutionSession
{
Description = this.GetType().ToString(),
Description = GetType().ToString(),
Reason = Windows.ApplicationModel.ExtendedExecution.ExtendedExecutionReason.SavingData
})
{
suspend();
await SuspendAllFramesAsync();
}
}
else
{
suspend();
await SuspendAllFramesAsync();
}
}

private async Task SuspendAllFramesAsync()
{
DebugWrite();

//allow only main view NavigationService as others won't be able to use Dispatcher and processing will stuck
var services = WindowWrapper.ActiveWrappers.SelectMany(x => x.NavigationServices).Where(x => x.IsInMainView);
foreach (INavigationService nav in services)
{
try
{
// call view model suspend (OnNavigatedfrom)
// date the cache (which marks the date/time it was suspended)
nav.FrameFacade.SetFrameState(CacheDateKey, DateTime.Now.ToString());
DebugWrite($"Nav.FrameId:{nav.FrameFacade.FrameId}");
await (nav as INavigationService).GetDispatcherWrapper().DispatchAsync(async () => await nav.SuspendingAsync());
}
catch (Exception ex)
{
DebugWrite($"FrameId: [{nav.FrameFacade.FrameId}] {ex} {ex.Message}", caller: nameof(AutoSuspendAllFramesAsync));
}
}
}

Expand Down Expand Up @@ -841,8 +866,7 @@ public void ActivateWindow(ActivateWindowSources source, States state, Popup spl

if (source != ActivateWindowSources.SplashScreen)
{
if (state == States.Splashing)
splashScreenPopup?.Hide();
splashScreenPopup?.Hide();
}

Window.Current.Activate();
Expand Down

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