src/cobalt/debug/devtools/front_end/inspector_main/RenderingOptions.js

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

InspectorMain.RenderingOptionsView = class extends UI.VBox {
  constructor() {
    super(true);
    this.registerRequiredCSS('inspector_main/renderingOptions.css');

    this._appendCheckbox(
        Common.UIString('Paint flashing'),
        Common.UIString('Highlights areas of the page (green) that need to be repainted'),
        Common.moduleSetting('showPaintRects'));
    this._appendCheckbox(
        Common.UIString('Layer borders'), Common.UIString('Shows layer borders (orange/olive) and tiles (cyan)'),
        Common.moduleSetting('showDebugBorders'));
    this._appendCheckbox(
        Common.UIString('FPS meter'),
        Common.UIString('Plots frames per second, frame rate distribution, and GPU memory'),
        Common.moduleSetting('showFPSCounter'));
    this._appendCheckbox(
        Common.UIString('Scrolling performance issues'),
        Common.UIString(
            'Highlights elements (teal) that can slow down scrolling, including touch & wheel event handlers and other main-thread scrolling situations.'),
        Common.moduleSetting('showScrollBottleneckRects'));
    this.contentElement.createChild('div').classList.add('panel-section-separator');

    const mediaSetting = Common.moduleSetting('emulatedCSSMedia');
    const mediaSelect = UI.SettingsUI.createControlForSetting(mediaSetting);
    if (mediaSelect) {
      const mediaRow = this.contentElement.createChild('span', 'media-row');
      mediaRow.createChild('label').textContent = Common.UIString('Emulate CSS media');
      mediaRow.createChild('p').textContent = Common.UIString('Forces media type for testing print and screen styles');
      mediaRow.appendChild(mediaSelect);
    }
  }

  /**
   * @param {string} label
   * @param {string} subtitle
   * @param {!Common.Setting} setting
   */
  _appendCheckbox(label, subtitle, setting) {
    const checkboxLabel = UI.CheckboxLabel.create(label, false, subtitle);
    UI.SettingsUI.bindCheckbox(checkboxLabel.checkboxElement, setting);
    this.contentElement.appendChild(checkboxLabel);
  }
};