Method focus

resources/zbrowser/client.js:621–629

* 聚焦元素 * * @param {string} selector - CSS 选择器 * @returns {ZBrowserClient} this

(selector)

   * @returns {ZBrowserClient} this
   */
  focus(selector) {
    return this.evaluate((selector) => {
      const el = document.querySelector(selector)
      if (!el) {
        throw new Error('focus: unable to find element by selector "' + selector + '"')
      }
      el.focus()
    }, selector)
  }

  /**
   * 滚动页面