/**
 * This file is based on the respective file in adblockplusui@3.15.2
 * Modifications:
 * - Updated panel name and icon file name
 *   Name and icon file from adblockplusui are specific to Adblock Plus
 */

/*
 * This file is part of Adblock Plus <https://adblockplus.org/>,
 * Copyright (C) 2006-present eyeo GmbH
 *
 * Adblock Plus is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 as
 * published by the Free Software Foundation.
 *
 * Adblock Plus is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
 */

"use strict";

let panelWindow = null;

(async() =>
{
  // Versions of Firefox before 54 do not support the devtools.panels API; on
  // these platforms, even when the option is enabled, we cannot show the
  // devtools panel.
  if ("panels" in browser.devtools)
  {
    let enabled = await browser.runtime.sendMessage(
      {type: "prefs.get", key: "show_devtools_panel"}
    );
    if (enabled)
    {
      let panel = await browser.devtools.panels.create(
        "AdBlock", "icons/ab-32.png", "devtools-panel.html"
      );

      panel.onShown.addListener(window =>
      {
        panelWindow = window;
      });

      panel.onHidden.addListener(window =>
      {
        panelWindow = null;
      });

      if (panel.onSearch)
      {
        panel.onSearch.addListener((eventName, queryString) =>
        {
          if (panelWindow)
            panelWindow.postMessage({type: eventName, queryString}, "*");
        });
      }
    }
  }
})();
