LayoutDebugChild.sys.mjs

Enable keyboard shortcuts

/* vim: set ts=2 sw=2 sts=2 et tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

const NS_LAYOUT_DEBUGGINGTOOLS_CONTRACTID =

  "@mozilla.org/layout-debug/layout-debuggingtools;1";

export class LayoutDebugChild extends JSWindowActorChild {

  receiveMessage(msg) {

    if (!this._debuggingTools) {

      this._debuggingTools = Cc[

        NS_LAYOUT_DEBUGGINGTOOLS_CONTRACTID

      ].createInstance(Ci.nsILayoutDebuggingTools);

      this._debuggingTools.init(this.contentWindow);

    switch (msg.name) {

      case "LayoutDebug:Call":

        let pid = Services.appinfo.processID;

        dump(`[${pid} ${this.contentWindow.location}]\n`);

        this._debuggingTools[msg.data.name](msg.data.arg);

        dump("\n");

        break;

      default:

        throw `unknown message ${msg.name} sent to LayoutDebugChild`;

    return Promise.resolve(true);