public void Handle(KeyRoutedEventArgs args)
{
var ctrlDown = Window.Current.CoreWindow.GetKeyState(VirtualKey.Control).HasFlag(CoreVirtualKeyStates.Down);
var altDown = Window.Current.CoreWindow.GetKeyState(VirtualKey.Menu).HasFlag(CoreVirtualKeyStates.Down);
var shiftDown = Window.Current.CoreWindow.GetKeyState(VirtualKey.Shift).HasFlag(CoreVirtualKeyStates.Down);
foreach (var keyboardCommand in Commands)
{
if (keyboardCommand.Hit(ctrlDown, altDown, shiftDown, args.Key))
{
if (keyboardCommand.ShouldExecute(_lastCommand))
{
keyboardCommand.Execute(args);
}
args.Handled = true;
_lastCommand = keyboardCommand;
}
}
if (!args.Handled)
{
_lastCommand = null;
}
}
public CommandHandlerResult Handle(KeyRoutedEventArgs args)
{
var ctrlDown = Window.Current.CoreWindow.GetKeyState(VirtualKey.Control).HasFlag(CoreVirtualKeyStates.Down);
var altDown = Window.Current.CoreWindow.GetKeyState(VirtualKey.Menu).HasFlag(CoreVirtualKeyStates.Down);
var shiftDown = Window.Current.CoreWindow.GetKeyState(VirtualKey.Shift).HasFlag(CoreVirtualKeyStates.Down);
var shouldHandle = false;
var shouldSwallow = false;
foreach (var command in Commands)
{
if (command.Hit(ctrlDown, altDown, shiftDown, args.Key))
{
if (command.ShouldExecute(_lastCommand))
{
command.Execute(args);
}
if (command.ShouldSwallowAfterExecution())
{
shouldSwallow = true;
}
if (command.ShouldHandleAfterExecution())
{
shouldHandle = true;
}
_lastCommand = command;
break;
}
}
if (!shouldHandle)
{
_lastCommand = null;
}
return(new CommandHandlerResult(shouldHandle, shouldSwallow));
}
public bool ShouldExecute(IKeyboardCommand <T> lastCommand)
{
DateTime now = DateTime.UtcNow;
if (lastCommand == this && now - _lastHitTimestamp < ConsecutiveHitsInterval)
{
_hits++;
}
else
{
_hits = 1;
}
_lastHitTimestamp = now;
if (_hits >= _requiredHits)
{
_hits = 0;
return(true);
}
return(false);
}
