protected override void OnKeyDown(KeyEventArgs e) {
var removeTextCmd = new RemoveTextCommand(textView, caretView, selectionView);
var caretMoveCmd = new CaretMoveCommand(caretView, textView);
var selectionCmd = new TextSelectionCommand(textView, selectionView, caretView);
var deselectionCmd = new TextDeselectionCommand(selectionView);
if (removeTextCmd.CanExecute(e)) {
ExecuteTextCommand(removeTextCmd, new UndoRemoveTextCommand(textView, caretView), e);
deselectionCmd.Execute();
} else if (caretMoveCmd.CanExecute(e)) {
caretMoveCmd.Execute(e);
deselectionCmd.Execute();
} else if (selectionCmd.CanExecute(e)) {
selectionCmd.Execute(e);
}
}
protected override void OnTextInput(TextCompositionEventArgs e) {
var enterTextCmd = new EnterTextCommand(textView, caretView, selectionView);
var deselectionCmd = new TextDeselectionCommand(selectionView);
if (enterTextCmd.CanExecute(e)) {
ExecuteTextCommand(enterTextCmd, new UndoEnterTextCommand(textView, caretView), e);
deselectionCmd.Execute();
}
}