public CustomKeyGestureExtension(string gestureString)
{
// TODO: Implement custom parsing logic, because Converter also invokes
// validating KeyGesture contructor.
var original = (KeyGesture)KeyGestureConverter.ConvertFromString(gestureString);
_keyGesture = CustomKeyGesture.Create(original.Key, original.Modifiers);
}
public static IOptionsExpression <T> KeyGesture <T>(
this IOptionsExpression <T> expression,
Key key,
ModifierKeys modifiers = ModifierKeys.None
) where T : ICommand
{
KeyGesture gesture = CustomKeyGesture.Create(key, modifiers);
InputBinding binding = new KeyBinding {
Gesture = gesture
};
BinderExpression.ExposeContext(
expression,
ctx => {
BindingOperations.SetBinding(binding, KeyBinding.CommandProperty, ctx.Binding);
var targetUIElement = ctx.TargetObject as UIElement;
var targetContentElement = ctx.TargetObject as ContentElement;
if (targetUIElement != null)
{
targetUIElement.InputBindings.Add(binding);
}
else if (targetContentElement != null)
{
targetContentElement.InputBindings.Add(binding);
}
else
{
throw new NotSupportedException();
}
}
);
return(expression);
}
