/// <summary>
/// Initializes a new instance of the <see cref="AppPage"/> class.
/// </summary>
public AppPage()
{
if (Windows.ApplicationModel.DesignMode.DesignModeEnabled)
{
return;
}
// When this page is part of the visual tree make two changes:
// 1) Map application view state to visual state for the page
// 2) Handle keyboard and mouse navigation requests
Loaded += (sender, e) =>
{
StartLayoutUpdates(sender, e);
// Keyboard and mouse navigation only apply when occupying the entire window
if (ActualHeight.Equals(Window.Current.Bounds.Height) &&
ActualWidth.Equals(Window.Current.Bounds.Width))
{
// Listen to the window directly so focus isn't required
Window.Current.CoreWindow.Dispatcher.AcceleratorKeyActivated +=
CoreDispatcher_AcceleratorKeyActivated;
Window.Current.CoreWindow.PointerPressed +=
CoreWindow_PointerPressed;
}
};
// Undo the same changes when the page is no longer visible
Unloaded += (sender, e) =>
{
StopLayoutUpdates(sender, e);
Window.Current.CoreWindow.Dispatcher.AcceleratorKeyActivated -= CoreDispatcher_AcceleratorKeyActivated;
Window.Current.CoreWindow.PointerPressed -= CoreWindow_PointerPressed;
};
}
