michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: "use strict";
michael@0: 
michael@0: module.metadata = {
michael@0:   "stability": "experimental"
michael@0: };
michael@0: 
michael@0: const { Ci, Cc } = require("chrome");
michael@0: const { make: makeWindow, getHiddenWindow } = require("../window/utils");
michael@0: const { create: makeFrame, getDocShell } = require("../frame/utils");
michael@0: const { defer } = require("../core/promise");
michael@0: const { when: unload } = require("../system/unload");
michael@0: const cfxArgs = require("@test/options");
michael@0: 
michael@0: let addonPrincipal = Cc["@mozilla.org/systemprincipal;1"].
michael@0:                      createInstance(Ci.nsIPrincipal);
michael@0: 
michael@0: let hiddenWindow = getHiddenWindow();
michael@0: 
michael@0: if (cfxArgs.parseable) {
michael@0:   console.info("hiddenWindow document.documentURI:" +
michael@0:     hiddenWindow.document.documentURI);
michael@0:   console.info("hiddenWindow document.readyState:" +
michael@0:     hiddenWindow.document.readyState);
michael@0: }
michael@0: 
michael@0: // Once Bug 565388 is fixed and shipped we'll be able to make invisible,
michael@0: // permanent docShells. Meanwhile we create hidden top level window and
michael@0: // use it's docShell.
michael@0: let frame = makeFrame(hiddenWindow.document, {
michael@0:   nodeName: "iframe",
michael@0:   namespaceURI: "http://www.w3.org/1999/xhtml",
michael@0:   allowJavascript: true,
michael@0:   allowPlugins: true
michael@0: })
michael@0: let docShell = getDocShell(frame);
michael@0: let eventTarget = docShell.chromeEventHandler;
michael@0: 
michael@0: // We need to grant docShell system principals in order to load XUL document
michael@0: // from data URI into it.
michael@0: docShell.createAboutBlankContentViewer(addonPrincipal);
michael@0: 
michael@0: // Get a reference to the DOM window of the given docShell and load
michael@0: // such document into that would allow us to create XUL iframes, that
michael@0: // are necessary for hidden frames etc..
michael@0: let window = docShell.contentViewer.DOMDocument.defaultView;
michael@0: window.location = "data:application/vnd.mozilla.xul+xml;charset=utf-8,<window/>";
michael@0: 
michael@0: // Create a promise that is delivered once add-on window is interactive,
michael@0: // used by add-on runner to defer add-on loading until window is ready.
michael@0: let { promise, resolve } = defer();
michael@0: eventTarget.addEventListener("DOMContentLoaded", function handler(event) {
michael@0:   eventTarget.removeEventListener("DOMContentLoaded", handler, false);
michael@0:   resolve();
michael@0: }, false);
michael@0: 
michael@0: 
michael@0: 
michael@0: exports.ready = promise;
michael@0: exports.window = window;
michael@0: 
michael@0: // Still close window on unload to claim memory back early.
michael@0: unload(function() {
michael@0:   window.close()
michael@0:   frame.parentNode.removeChild(frame);
michael@0: });