Method open

third_party/subscriptions-project/swg.js:10887–10912

* Opens the dialog and builds the iframe container. * @param {boolean=} hidden * @return {!Promise<!Dialog>}

(hidden = false)

   * @return {!Promise<!Dialog>}
   */
  open(hidden = false) {
    const iframe = this.iframe_;
    if (iframe.isConnected()) {
      throw new Error('already opened');
    }

    // Attach.
    this.doc_.getBody().appendChild(iframe.getElement()); // Fires onload.

    this.graypane_.attach();

    if (hidden) {
      setImportantStyles$1(iframe.getElement(), {
        'visibility': 'hidden',
        'opacity': 0,
      });
      this.hidden_ = hidden;
    } else {
      this.show_();
    }

    return iframe.whenReady().then(() => {
      this.buildIframe_();
      return this;
    });
  }

  /**
   * Opens the iframe embedded in the given container element.