private void OnTargetChanged(IInputElement oldTarget, IInputElement newTarget)
{
int timestamp = presentationSource.GetTimestamp();
if (oldTarget != null)
{
foreach (Key key in downKeys)
{
oldTarget.RaiseEvents(
new KeyEventArgs(Keyboard.PreviewKeyUpEvent, oldTarget, this, timestamp, key, KeyStates.None, false),
new KeyEventArgs(Keyboard.KeyUpEvent, oldTarget, this, timestamp, key, KeyStates.None, false));
}
oldTarget.RaiseEvents(
new KeyboardFocusChangedEventArgs(Keyboard.PreviewLostKeyboardFocusEvent, oldTarget, this, timestamp, oldTarget, newTarget),
new KeyboardFocusChangedEventArgs(Keyboard.LostKeyboardFocusEvent, oldTarget, this, timestamp, oldTarget, newTarget));
}
if (newTarget != null)
{
newTarget.RaiseEvents(
new KeyboardFocusChangedEventArgs(Keyboard.PreviewGotKeyboardFocusEvent, newTarget, this, timestamp, oldTarget, newTarget),
new KeyboardFocusChangedEventArgs(Keyboard.GotKeyboardFocusEvent, newTarget, this, timestamp, oldTarget, newTarget));
foreach (Key key in downKeys)
{
newTarget.RaiseEvents(
new KeyEventArgs(Keyboard.PreviewKeyDownEvent, newTarget, this, timestamp, key, KeyStates.None, false),
new KeyEventArgs(Keyboard.KeyDownEvent, newTarget, this, timestamp, key, KeyStates.None, false));
}
}
}
public void Deactivate()
{
IInputElement lastTarget = Target;
IsActive = false;
if (lastTarget != null)
{
int timestamp = presentationSource.GetTimestamp();
foreach (MouseButton button in pressedButtons)
{
lastTarget.RaiseEvents(
new MouseButtonEventArgs(Mouse.PreviewMouseUpEvent, lastTarget, this, timestamp, Position, button, MouseButtonState.Released, 1),
new MouseButtonEventArgs(Mouse.MouseUpEvent, lastTarget, this, timestamp, Position, button, MouseButtonState.Released, 1));
}
}
pressedButtons.Clear();
}
private void OnTargetChanged(IInputElement oldTarget, IInputElement newTarget)
{
int timestamp = presentationSource.GetTimestamp();
if (oldTarget != null)
{
foreach (Key key in downKeys)
{
oldTarget.RaiseEvents(
new KeyEventArgs(Keyboard.PreviewKeyUpEvent, oldTarget, this, timestamp, key, KeyStates.None, false),
new KeyEventArgs(Keyboard.KeyUpEvent, oldTarget, this, timestamp, key, KeyStates.None, false));
}
oldTarget.RaiseEvents(
new KeyboardFocusChangedEventArgs(Keyboard.PreviewLostKeyboardFocusEvent, oldTarget, this, timestamp, oldTarget, newTarget),
new KeyboardFocusChangedEventArgs(Keyboard.LostKeyboardFocusEvent, oldTarget, this, timestamp, oldTarget, newTarget));
}
if (newTarget != null)
{
newTarget.RaiseEvents(
new KeyboardFocusChangedEventArgs(Keyboard.PreviewGotKeyboardFocusEvent, newTarget, this, timestamp, oldTarget, newTarget),
new KeyboardFocusChangedEventArgs(Keyboard.GotKeyboardFocusEvent, newTarget, this, timestamp, oldTarget, newTarget));
foreach (Key key in downKeys)
{
newTarget.RaiseEvents(
new KeyEventArgs(Keyboard.PreviewKeyDownEvent, newTarget, this, timestamp, key, KeyStates.None, false),
new KeyEventArgs(Keyboard.KeyDownEvent, newTarget, this, timestamp, key, KeyStates.None, false));
}
}
}
