зеркало из https://github.com/mozilla/gecko-dev.git
91 строка
2.8 KiB
JavaScript
91 строка
2.8 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 EXPORTED_SYMBOLS = ["ChildMessagePort"];
|
|
|
|
ChromeUtils.import("resource://gre/modules/Services.jsm");
|
|
ChromeUtils.import("resource://gre/modules/remotepagemanager/MessagePort.jsm");
|
|
|
|
// The content side of a message port
|
|
function ChildMessagePort(contentFrame, window) {
|
|
let portID = Services.appinfo.processID + ":" + ChildMessagePort.prototype.nextPortID++;
|
|
MessagePort.call(this, contentFrame, portID);
|
|
|
|
this.window = window;
|
|
|
|
// Add functionality to the content page
|
|
Cu.exportFunction(this.sendAsyncMessage.bind(this), window, {
|
|
defineAs: "RPMSendAsyncMessage",
|
|
});
|
|
Cu.exportFunction(this.addMessageListener.bind(this), window, {
|
|
defineAs: "RPMAddMessageListener",
|
|
allowCallbacks: true,
|
|
});
|
|
Cu.exportFunction(this.removeMessageListener.bind(this), window, {
|
|
defineAs: "RPMRemoveMessageListener",
|
|
allowCallbacks: true,
|
|
});
|
|
Cu.exportFunction(this.getBoolPref.bind(this), window, {
|
|
defineAs: "RPMGetBoolPref",
|
|
});
|
|
Cu.exportFunction(this.setBoolPref.bind(this), window, {
|
|
defineAs: "RPMSetBoolPref",
|
|
});
|
|
Cu.exportFunction(this.getFormatURLPref.bind(this), window, {
|
|
defineAs: "RPMGetFormatURLPref",
|
|
});
|
|
Cu.exportFunction(this.isWindowPrivate.bind(this), window, {
|
|
defineAs: "RPMIsWindowPrivate",
|
|
});
|
|
|
|
// Send a message for load events
|
|
let loadListener = () => {
|
|
this.sendAsyncMessage("RemotePage:Load");
|
|
window.removeEventListener("load", loadListener);
|
|
};
|
|
window.addEventListener("load", loadListener);
|
|
|
|
// Destroy the port when the window is unloaded
|
|
window.addEventListener("unload", () => {
|
|
try {
|
|
this.sendAsyncMessage("RemotePage:Unload");
|
|
} catch (e) {
|
|
// If the tab has been closed the frame message manager has already been
|
|
// destroyed
|
|
}
|
|
this.destroy();
|
|
});
|
|
|
|
// Tell the main process to set up its side of the message pipe.
|
|
this.messageManager.sendAsyncMessage("RemotePage:InitPort", {
|
|
portID,
|
|
url: window.document.documentURI.replace(/[\#|\?].*$/, ""),
|
|
});
|
|
}
|
|
|
|
ChildMessagePort.prototype = Object.create(MessagePort.prototype);
|
|
|
|
ChildMessagePort.prototype.nextPortID = 0;
|
|
|
|
// Called when a message is received from the message manager. This could
|
|
// have come from any port in the message manager so verify the port ID.
|
|
ChildMessagePort.prototype.message = function({ data: messagedata }) {
|
|
if (this.destroyed || (messagedata.portID != this.portID)) {
|
|
return;
|
|
}
|
|
|
|
let message = {
|
|
name: messagedata.name,
|
|
data: messagedata.data,
|
|
};
|
|
this.listener.callListeners(Cu.cloneInto(message, this.window));
|
|
};
|
|
|
|
ChildMessagePort.prototype.destroy = function() {
|
|
this.window = null;
|
|
MessagePort.prototype.destroy.call(this);
|
|
};
|