}

  sendPickerValueChanged() {
    let detail = this.sendPickerValueChangedImpl(this.#type, this.#pickerState);
    this.#element.dispatchEvent(
      new CustomEvent(`InputPickerValueChanged`, {
        detail,
      })
    );
  }

  /**
   * Input element state updater function called when the picker value is changed
   *
   * @param {string} _type
   * @param {object} _pickerState
   */
  sendPickerValueChangedImpl(_type, _pickerState) {
    throw new Error("Not implemented");
  }

  handleEvent(aEvent) {
    switch (aEvent.type) {
      case "load": {
        this.initPicker(this.#detail);
        this.#popupFrame.contentWindow.addEventListener("message", this, {
          signal: this.#abortController.signal,
        });
        break;
      }
      case "message": {
        this.handleMessage(aEvent);
        break;
      }
    }
  }

  handleMessage(aEvent) {
    if (!this.#popupFrame.contentDocument.nodePrincipal.isSystemPrincipal) {
      return;
    }

    switch (aEvent.data.name) {
      case "PickerPopupChanged": {
        this.#pickerState = aEvent.data.detail;
        this.sendPickerValueChanged();
        break;
      }
      case "ClosePopup": {
        this.closePicker(aEvent.data.detail);
        break;
      }
    }
  }

  postMessageToPicker(data) {
    if (this.#popupFrame.contentDocument.nodePrincipal.isSystemPrincipal) {
      this.#popupFrame.contentWindow.postMessage(data, "*");
    }
  }
}
PK