diff options
Diffstat (limited to 'application/basilisk/modules/HiddenFrame.jsm')
-rw-r--r-- | application/basilisk/modules/HiddenFrame.jsm | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/application/basilisk/modules/HiddenFrame.jsm b/application/basilisk/modules/HiddenFrame.jsm deleted file mode 100644 index 7676ae189..000000000 --- a/application/basilisk/modules/HiddenFrame.jsm +++ /dev/null @@ -1,86 +0,0 @@ -/* 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"; - -this.EXPORTED_SYMBOLS = ["HiddenFrame"]; - -const { classes: Cc, interfaces: Ci, utils: Cu } = Components; - -Cu.import("resource://gre/modules/PromiseUtils.jsm"); -Cu.import("resource://gre/modules/Services.jsm"); -Cu.import("resource://gre/modules/Timer.jsm"); - -const HTML_NS = "http://www.w3.org/1999/xhtml"; -const XUL_PAGE = "data:application/vnd.mozilla.xul+xml;charset=utf-8,<window%20id='win'/>"; - -/** - * An hidden frame object. It takes care of creating an IFRAME and attaching it the - * |hiddenDOMWindow|. - */ -function HiddenFrame() {} - -HiddenFrame.prototype = { - _frame: null, - _deferred: null, - _retryTimerId: null, - - get hiddenDOMDocument() { - return Services.appShell.hiddenDOMWindow.document; - }, - - get isReady() { - return this.hiddenDOMDocument.readyState === "complete"; - }, - - /** - * Gets the |contentWindow| of the hidden frame. Creates the frame if needed. - * @returns Promise Returns a promise which is resolved when the hidden frame has finished - * loading. - */ - get: function () { - if (!this._deferred) { - this._deferred = PromiseUtils.defer(); - this._create(); - } - - return this._deferred.promise; - }, - - destroy: function () { - clearTimeout(this._retryTimerId); - - if (this._frame) { - if (!Cu.isDeadWrapper(this._frame)) { - this._frame.removeEventListener("load", this, true); - this._frame.remove(); - } - - this._frame = null; - this._deferred = null; - } - }, - - handleEvent: function () { - let contentWindow = this._frame.contentWindow; - if (contentWindow.location.href === XUL_PAGE) { - this._frame.removeEventListener("load", this, true); - this._deferred.resolve(contentWindow); - } else { - contentWindow.location = XUL_PAGE; - } - }, - - _create: function () { - if (this.isReady) { - let doc = this.hiddenDOMDocument; - this._frame = doc.createElementNS(HTML_NS, "iframe"); - this._frame.addEventListener("load", this, true); - doc.documentElement.appendChild(this._frame); - } else { - // Check again if |hiddenDOMDocument| is ready as soon as possible. - this._retryTimerId = setTimeout(this._create.bind(this), 0); - } - } -}; |