83 lines
2.5 KiB
JavaScript
83 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";
|
|
|
|
var { Cr } = require("chrome");
|
|
var { TabActor } = require("devtools/server/actors/webbrowser");
|
|
|
|
/**
|
|
* Tab actor for documents living in a child process.
|
|
*
|
|
* Depends on TabActor, defined in webbrowser.js.
|
|
*/
|
|
|
|
/**
|
|
* Creates a tab actor for handling requests to the single tab, like
|
|
* attaching and detaching. ContentActor respects the actor factories
|
|
* registered with DebuggerServer.addTabActor.
|
|
*
|
|
* @param connection DebuggerServerConnection
|
|
* The conection to the client.
|
|
* @param chromeGlobal
|
|
* The content script global holding |content| and |docShell| properties for a tab.
|
|
* @param prefix
|
|
* the prefix used in protocol to create IDs for each actor.
|
|
* Used as ID identifying this particular TabActor from the parent process.
|
|
*/
|
|
function ContentActor(connection, chromeGlobal, prefix)
|
|
{
|
|
this._chromeGlobal = chromeGlobal;
|
|
this._prefix = prefix;
|
|
TabActor.call(this, connection, chromeGlobal);
|
|
this.traits.reconfigure = false;
|
|
this._sendForm = this._sendForm.bind(this);
|
|
this._chromeGlobal.addMessageListener("debug:form", this._sendForm);
|
|
|
|
Object.defineProperty(this, "docShell", {
|
|
value: this._chromeGlobal.docShell,
|
|
configurable: true
|
|
});
|
|
}
|
|
|
|
ContentActor.prototype = Object.create(TabActor.prototype);
|
|
|
|
ContentActor.prototype.constructor = ContentActor;
|
|
|
|
Object.defineProperty(ContentActor.prototype, "title", {
|
|
get: function () {
|
|
return this.window.document.title;
|
|
},
|
|
enumerable: true,
|
|
configurable: true
|
|
});
|
|
|
|
ContentActor.prototype.exit = function () {
|
|
if (this._sendForm) {
|
|
try {
|
|
this._chromeGlobal.removeMessageListener("debug:form", this._sendForm);
|
|
} catch (e) {
|
|
if (e.result != Cr.NS_ERROR_NULL_POINTER) {
|
|
throw e;
|
|
}
|
|
// In some cases, especially when using messageManagers in non-e10s mode, we reach
|
|
// this point with a dead messageManager which only throws errors but does not
|
|
// seem to indicate in any other way that it is dead.
|
|
}
|
|
this._sendForm = null;
|
|
}
|
|
|
|
TabActor.prototype.exit.call(this);
|
|
|
|
this._chromeGlobal = null;
|
|
};
|
|
|
|
/**
|
|
* On navigation events, our URL and/or title may change, so we update our
|
|
* counterpart in the parent process that participates in the tab list.
|
|
*/
|
|
ContentActor.prototype._sendForm = function () {
|
|
this._chromeGlobal.sendAsyncMessage("debug:form", this.form());
|
|
};
|