CommandsPaletteViewImpl.java 文件源码

@UiHandler({"filterField"})
void onFilterChanged(KeyUpEvent event) {
  switch (event.getNativeKeyCode()) {
    case KEY_UP:
      tree.getSelectionModel().selectPrevious();
      break;
    case KEY_DOWN:
      tree.getSelectionModel().selectNext();
      break;
    case KEY_ENTER:
      final List<Node> selectedNodes = tree.getSelectionModel().getSelectedNodes();

      if (!selectedNodes.isEmpty()) {
        final Node node = selectedNodes.get(0);

        if (node instanceof ExecutableCommandNode) {
          delegate.onCommandExecute(((ExecutableCommandNode) node).getData());
        } else if (node instanceof CommandGoalNode) {
          tree.setExpanded(node, !tree.isExpanded(node));
        }
      }
      break;
    default:
      delegate.onFilterChanged(filterField.getValue());
  }
}