_attachColorPickerInputBoxEvents() {
    this.ui.on(events.INPUT_BOX_EDITING_STARTED, () => {
      this.isColorPickerInputBoxEditing = true;
    });
    this.ui.on(events.INPUT_BOX_EDITING_STOPPED, () => {
      this.isColorPickerInputBoxEditing = false;
    });
  }
Event handler list
@type {Object}
@private