Method subviewDidFocus

src/View.js:312–321

* Triggered when a subview receives focus. * @param {View} subview

(subview)

   * @param {View} subview
   */
  subviewDidFocus (subview) {
    if (this.hasFocus()) {
      // blur other subviews
      this._subviews
        .filter(view => view !== subview)
        .forEach(view => view.blur())
    } else {
      this.focus()
    }
  }

  /**
   * Triggered when view receives focus.