gecko-dev/layout/tools/layout-debug/LayoutDebugChild.jsm

35 строки
1.1 KiB
JavaScript

/* 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/. */
"use strict";
var EXPORTED_SYMBOLS = ["LayoutDebugChild"];
const NS_LAYOUT_DEBUGGINGTOOLS_CONTRACTID =
"@mozilla.org/layout-debug/layout-debuggingtools;1";
const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
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);
}
}