Method _handle_key

dm_control/viewer/user_input.py:275–293

Handles a single key press (mouse and keyboard).

(self, key, action, modifiers)

    self._z_axis_callback.append(callback)

  def _handle_key(self, key, action, modifiers):
    """Handles a single key press (mouse and keyboard)."""
    alias_key = (key, modifiers)

    exclusive_key, exclusive_callback = self._active_exclusive
    if exclusive_key is not None:
      if action == RELEASE and key == exclusive_key:
        exclusive_callback(False)
        self._active_exclusive = _NO_EXCLUSIVE_KEY
    else:
      is_exclusive, callback = self._action_callbacks.get(
          alias_key, _NO_CALLBACK)
      if callback:
        if action == PRESS:
          if is_exclusive:
            callback(True)
            self._active_exclusive = (key, callback)
          else:
            callback()

  def _handle_double_click(self, key, modifiers):
    """Handles a double mouse click."""