Method update

extensions/amp-access-scroll/0.1/scroll-sheet.js:29–55

* @param {!JsonObject} action

(action)

   * @param {!JsonObject} action
   */
  update(action) {
    let changed = false;

    switch (action['_scramp']) {
      case 'au':
        changed = this.updateHorizontalLayout(action);
        ['open', 'url', 'title'].forEach((key) => {
          if (hasOwn(action, key) && action[key] !== this.state_[key]) {
            this.state_[key] = action[key];
            changed = true;
          }
        });
        break;
      case 'st':
        ['revealed'].forEach((key) => {
          if (hasOwn(action, key) && action[key] !== this.state_[key]) {
            this.state_[key] = action[key];
            changed = true;
          }
        });
        break;
    }

    if (changed) {
      this.render_(this.state_);
    }
  }

  /**
   * @param {!Sheet.State} state