gecko-dev/toolkit/components/processsingleton/ContentProcessSingleton.js

76 lines
2.5 KiB
JavaScript

/* 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";
const Cu = Components.utils;
const Ci = Components.interfaces;
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
XPCOMUtils.defineLazyServiceGetter(this, "cpmm",
"@mozilla.org/childprocessmessagemanager;1",
"nsIMessageSender");
function ContentProcessSingleton() {}
ContentProcessSingleton.prototype = {
classID: Components.ID("{ca2a8470-45c7-11e4-916c-0800200c9a66}"),
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
Ci.nsISupportsWeakReference]),
observe: function(subject, topic, data) {
switch (topic) {
case "app-startup": {
Services.obs.addObserver(this, "console-api-log-event", false);
Services.obs.addObserver(this, "xpcom-shutdown", false);
cpmm.addMessageListener("DevTools:InitDebuggerServer", this);
break;
}
case "console-api-log-event": {
let consoleMsg = subject.wrappedJSObject;
let msgData = {
level: consoleMsg.level,
filename: consoleMsg.filename,
lineNumber: consoleMsg.lineNumber,
functionName: consoleMsg.functionName,
timeStamp: consoleMsg.timeStamp,
arguments: [],
};
// We can't send objects over the message manager, so we sanitize
// them out.
for (let arg of consoleMsg.arguments) {
if ((typeof arg == "object" || typeof arg == "function") && arg !== null) {
msgData.arguments.push("<unavailable>");
} else {
msgData.arguments.push(arg);
}
}
cpmm.sendAsyncMessage("Console:Log", msgData);
break;
}
case "xpcom-shutdown":
Services.obs.removeObserver(this, "console-api-log-event");
Services.obs.removeObserver(this, "xpcom-shutdown");
cpmm.removeMessageListener("DevTools:InitDebuggerServer", this);
break;
}
},
receiveMessage: function (message) {
// load devtools component on-demand
// Only reply if we are in a real content process
if (Services.appinfo.processType == Services.appinfo.PROCESS_TYPE_CONTENT) {
let {init} = Cu.import("resource://gre/modules/devtools/content-server.jsm", {});
init(message);
}
},
};
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([ContentProcessSingleton]);