private void OnStateChanged(object sender, object e)
{
switch (_viewModel.State)
{
case FlyoutViewState.Opening:
var taskbar = WindowsTaskbar.Current;
Show();
PositionWindowRelativeToTaskbar(taskbar);
// Focus the first device if available.
DevicesList.FindVisualChild <DeviceView>()?.FocusAndRemoveFocusVisual();
// Prevent showing stale adnorners.
this.WaitForKeyboardVisuals(() =>
{
LayoutRoot.Background = new SolidColorBrush(Themes.Manager.Current.ResolveRef(this, "AcrylicColor_Flyout"));
WindowAnimationLibrary.BeginFlyoutEntranceAnimation(this, taskbar, () =>
{
_viewModel.ChangeState(FlyoutViewState.Open);
// Wait to apply acrylic, or the translate transform illusion will be spoiled.
EnableAcrylicIfApplicable(taskbar);
});
});
break;
case FlyoutViewState.Closing_Stage1:
DevicesList.FindVisualChild <DeviceView>()?.FocusAndRemoveFocusVisual();
if (_viewModel.IsExpandingOrCollapsing)
{
AccentPolicyLibrary.DisableAcrylic(this);
WindowAnimationLibrary.BeginFlyoutExitanimation(this, () =>
{
this.Cloak();
// Go directly to ViewState.Hidden to avoid the stage 2 hide delay (debounce for tray clicks),
// we want to show again immediately.
_viewModel.ChangeState(FlyoutViewState.Hidden);
});
}
else
{
// No animation for normal exit.
this.Cloak();
AccentPolicyLibrary.DisableAcrylic(this);
// Prevent de-queueing partially on show and showing stale adnorners.
this.WaitForKeyboardVisuals(() =>
{
Hide();
_viewModel.ChangeState(FlyoutViewState.Closing_Stage2);
});
}
break;
}
}
private void ViewModel_OnStateChanged(object sender, object e)
{
switch (_viewModel.State)
{
case FlyoutViewModel.ViewState.Opening:
if (_viewModel.ShowOptions == FlyoutShowOptions.Pointer)
{
_rawListener.Start();
}
Show();
// We need the theme to be updated on show because the window borders will be set based on taskbar position.
ThemeChanged();
UpdateWindowBounds();
// Update layout otherwise we may display queued state changes
UpdateLayout();
DevicesList.Focus();
WindowAnimationLibrary.BeginFlyoutEntranceAnimation(this, () => _viewModel.ChangeState(FlyoutViewModel.ViewState.Open));
break;
case FlyoutViewModel.ViewState.Closing_Stage1:
_rawListener.Stop();
if (_needsExpandOrCollapse)
{
WindowAnimationLibrary.BeginFlyoutExitanimation(this, () =>
{
this.Cloak();
Hide();
// NB: Hidden to avoid the stage 2 hide delay, we want to show again immediately.
_viewModel.ChangeState(FlyoutViewModel.ViewState.Hidden);
});
}
else
{
this.Cloak();
Hide();
DisableAcrylic();
_viewModel.ChangeState(FlyoutViewModel.ViewState.Closing_Stage2);
}
break;
case FlyoutViewModel.ViewState.Hidden:
if (_needsExpandOrCollapse)
{
_needsExpandOrCollapse = false;
_viewModel.DoExpandCollapse();
_viewModel.BeginOpen();
}
break;
}
}
private void OnStateChanged(object sender, object e)
{
switch (_viewModel.State)
{
case FlyoutViewModel.ViewState.Opening:
Show();
ThemeChanged();
UpdateWindowBounds();
// Focus the first device if available.
DevicesList.FindVisualChild <DeviceView>()?.FocusAndRemoveFocusVisual();
WaitForKeyboardVisuals(() =>
{
WindowAnimationLibrary.BeginFlyoutEntranceAnimation(this, () => _viewModel.ChangeState(FlyoutViewModel.ViewState.Open));
});
break;
case FlyoutViewModel.ViewState.Closing_Stage1:
DevicesList.FindVisualChild <DeviceView>()?.FocusAndRemoveFocusVisual();
if (_viewModel.IsExpandingOrCollapsing)
{
WindowAnimationLibrary.BeginFlyoutExitanimation(this, () =>
{
this.Cloak();
// NB: Hidden to avoid the stage 2 hide delay, we want to show again immediately.
_viewModel.ChangeState(FlyoutViewModel.ViewState.Hidden);
});
}
else
{
this.Cloak();
DisableAcrylic();
WaitForKeyboardVisuals(() =>
{
Hide();
_viewModel.ChangeState(FlyoutViewModel.ViewState.Closing_Stage2);
});
}
break;
}
}