Files
tubestation/addon-sdk/source/lib/sdk/addon/window.js
2017-04-03 21:25:16 +01:00

82 lines
2.9 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";
module.metadata = {
"stability": "experimental"
};
const { Ci, Cc, Cu } = require("chrome");
const { when: unload } = require("../system/unload");
const prefs = require("../preferences/service");
if (!prefs.get("extensions.usehiddenwindow", false)) {
const {HiddenFrame} = require("resource:///modules/HiddenFrame.jsm", {});
let hiddenFrame = new HiddenFrame();
exports.window = hiddenFrame.getWindow();
exports.ready = hiddenFrame.get();
// Still destroy frame on unload to claim memory back early.
// NOTE: this doesn't seem to work and just doesn't get called. :-\
unload(function() {
hiddenFrame.destroy();
hiddenFrame = null;
});
} else {
const { make: makeWindow, getHiddenWindow } = require("../window/utils");
const { create: makeFrame, getDocShell } = require("../frame/utils");
const { defer } = require("../core/promise");
const cfxArgs = require("../test/options");
var addonPrincipal = Cc["@mozilla.org/systemprincipal;1"].
createInstance(Ci.nsIPrincipal);
var hiddenWindow = getHiddenWindow();
if (cfxArgs.parseable) {
console.info("hiddenWindow document.documentURI:" +
hiddenWindow.document.documentURI);
console.info("hiddenWindow document.readyState:" +
hiddenWindow.document.readyState);
}
// Once Bug 565388 is fixed and shipped we'll be able to make invisible,
// permanent docShells. Meanwhile we create hidden top level window and
// use it's docShell.
var frame = makeFrame(hiddenWindow.document, {
nodeName: "iframe",
namespaceURI: "http://www.w3.org/1999/xhtml",
allowJavascript: true,
allowPlugins: true
})
var docShell = getDocShell(frame);
var eventTarget = docShell.chromeEventHandler;
// We need to grant docShell system principals in order to load XUL document
// from data URI into it.
docShell.createAboutBlankContentViewer(addonPrincipal);
// Get a reference to the DOM window of the given docShell and load
// such document into that would allow us to create XUL iframes, that
// are necessary for hidden frames etc..
var window = docShell.contentViewer.DOMDocument.defaultView;
window.location = "data:application/vnd.mozilla.xul+xml;charset=utf-8,<window/>";
// Create a promise that is delivered once add-on window is interactive,
// used by add-on runner to defer add-on loading until window is ready.
var { promise, resolve } = defer();
eventTarget.addEventListener("DOMContentLoaded", function(event) {
resolve();
}, {once: true});
exports.ready = promise;
exports.window = window;
// Still close window on unload to claim memory back early.
unload(function() {
window.close()
frame.remove();
});
}