protected override void OnPreviewKeyDown(KeyEventArgs args)
{
base.OnKeyDown(args);
args.Handled = true;
if (gestCut.Matches(null, args))
{
CutOnClick(this, args);
}
else if (gestCopy.Matches(null, args))
{
CopyOnClick(this, args);
}
else if (gestPaste.Matches(null, args))
{
PasteOnClick(this, args);
}
else if (gestDelete.Matches(null, args))
{
DeleteOnClick(this, args);
}
else
{
args.Handled = false;
}
}
protected override SelectionMode HandleKeyboardEvent(object sender, KeyEventArgs keyEventArgs)
{
if (keyEventArgs.IsDown)
{
if (SelectionModeManager.IsMultiSelectionKey(keyEventArgs.Key))
{
return(this);
}
if (ToggleSelectionKey.Matches(sender, keyEventArgs))
{
log.Debug("Toggling current item's selection");
ToggleItemSelection();
keyEventArgs.Handled = true;
}
}
else if (keyEventArgs.IsUp)
{
UpdateKeyboardStatus();
if (!ctrlIsDown && !shiftIsDown)
{
return(SelectionModeManager.SingleSelectionMode);
}
}
return(this);
}
// <SnippetKeyDownHandlerKeyGestureMatches>
private void OnKeyDown(object sender, KeyEventArgs e)
{
KeyGesture keyGesture = new KeyGesture(Key.B, ModifierKeys.Control);
if (keyGesture.Matches(null, e))
{
MessageBox.Show("Trapped Key Gesture");
}
}
public void Key_Gesture_Matches_NumPad_To_Regular_Digit(Key gestureKey, Key pressedKey)
{
var keyGesture = new KeyGesture(gestureKey);
Assert.True(keyGesture.Matches(new KeyEventArgs
{
Key = pressedKey
}));
}
protected override void OnPreviewKeyDown(System.Windows.Input.KeyEventArgs e)
{
base.OnPreviewKeyDown(e);
e.Handled = true;
if (exitGesture.Matches(null, e))
{
exitMenuItem_Click(this, e);
}
else
{
e.Handled = false;
}
}
public static void RaiseMenuItemClickOnKeyGesture(this ItemsControl control, KeyEventArgs args, bool throwOnError)
{
if (args == null)
{
throw new ArgumentNullException("e");
}
if (control == null)
{
return;
}
KeyGestureConverter kgc = new KeyGestureConverter();
foreach (var item in control.Items.OfType <MenuItem>())
{
if (!string.IsNullOrWhiteSpace(item.InputGestureText))
{
KeyGesture gesture = null;
if (throwOnError)
{
gesture = kgc.ConvertFrom(item.InputGestureText) as KeyGesture;
}
else
{
try
{
gesture = kgc.ConvertFrom(item.InputGestureText) as KeyGesture;
}
catch
{
}
}
if (gesture != null && gesture.Matches(null, args))
{
//System.Diagnostics.Trace.WriteLine("MATCH item:" + item + ", key:" + e.Key + " Keyboard.Modifiers:" + Keyboard.Modifiers);
item.RaiseEvent(new RoutedEventArgs(MenuItem.ClickEvent));
args.Handled = true;
return;
}
}
RaiseMenuItemClickOnKeyGesture(item, args, throwOnError);
if (args.Handled)
{
return;
}
}
}
public static void RaiseMenuItemClickOnKeyGesture(this ItemsControl control, KeyEventArgs args, bool throwOnError)
{
if (args == null)
{
throw new ArgumentNullException(nameof(args));
}
if (control == null)
{
return;
}
var kgc = new KeyGestureConverter();
foreach (var item in control.Items.OfType <MenuItem>())
{
if (!string.IsNullOrWhiteSpace(item.InputGestureText))
{
KeyGesture gesture = null;
if (throwOnError)
{
gesture = kgc.ConvertFrom(item.InputGestureText) as KeyGesture;
}
else
{
try
{
gesture = kgc.ConvertFrom(item.InputGestureText) as KeyGesture;
}
catch
{
}
}
if (gesture != null && gesture.Matches(null, args))
{
item.RaiseEvent(new RoutedEventArgs(MenuItem.ClickEvent));
args.Handled = true;
return;
}
}
RaiseMenuItemClickOnKeyGesture(item, args, throwOnError);
if (args.Handled)
{
return;
}
}
}
public static IDisposable Attach(TopLevel control, KeyGesture gesture)
{
void PreviewKeyDown(object sender, KeyEventArgs e)
{
if (gesture.Matches(e))
{
OpenDevTools(control);
}
}
return(control.AddHandler(
KeyDownEvent,
PreviewKeyDown,
RoutingStrategies.Tunnel));
}
public static IDisposable Attach(TopLevel root, KeyGesture gesture)
{
void PreviewKeyDown(object sender, KeyEventArgs e)
{
if (gesture.Matches(e))
{
Open(root);
}
}
return(root.AddDisposableHandler(
InputElement.KeyDownEvent,
PreviewKeyDown,
RoutingStrategies.Tunnel));
}
public override bool Matches(object targetElement, InputEventArgs inputEventArgs)
{
var keyEvent = inputEventArgs as KeyEventArgs;
if (keyEvent == null)
{
return(false);
}
if (_keyGesture != null)
{
return(_keyGesture.Matches(targetElement, inputEventArgs));
}
return(_key == keyEvent.Key);
}