From 04ff8dfd02a88166a69ba77bd39478d8fb28c940 Mon Sep 17 00:00:00 2001
From: Evan Theurer <theurer@struktur.de>
Date: Fri, 2 Oct 2015 11:13:19 +0200
Subject: [PATCH] Add firefoxextension service.

---
 static/js/services/firefoxextension.js | 79 ++++++++++++++++++++++++++
 static/js/services/services.js         |  9 ++-
 2 files changed, 85 insertions(+), 3 deletions(-)
 create mode 100644 static/js/services/firefoxextension.js

diff --git a/static/js/services/firefoxextension.js b/static/js/services/firefoxextension.js
new file mode 100644
index 00000000..a3fa8495
--- /dev/null
+++ b/static/js/services/firefoxextension.js
@@ -0,0 +1,79 @@
+/*
+ * Spreed WebRTC.
+ * Copyright (C) 2013-2015 struktur AG
+ *
+ * This file is part of Spreed WebRTC.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+"use strict";
+define(["underscore", "jquery", "webrtc.adapter"], function(_, $) {
+
+	// firefoxExtension
+	return ["$window", "$q", "alertify", "translation", function($window, $q, alertify, translation) {
+
+		var FirefoxExtension = function() {
+			this.available = false;
+			this.e = $({});
+			this.autoinstall = {};
+			this.initialize();
+		};
+
+		FirefoxExtension.prototype.initialize = function() {
+			var marker = $window.document.getElementById("firefoxextension-available");
+			console.log('Firefox extension marker', marker);
+			if (marker) {
+				this.available = true;
+				console.log("Firefox extension is available.");
+				this.e.triggerHandler("available", true);
+			} else if (!marker && this.available) {
+				this.available = false;
+				console.log("Firefox extension is no longer available.");
+				this.e.triggerHandler("available", false);
+			}
+		};
+
+		FirefoxExtension.prototype.registerAutoInstall = function(installFunc, cancelInstallFunc, force) {
+
+			this.autoinstall.install = installFunc;
+			this.autoinstall.cancel = cancelInstallFunc;
+			this.autoinstall.force = !!force;
+			if (!this.available && installFunc) {
+				this.e.triggerHandler("available", true);
+			}
+
+		};
+
+		// Create extension api and wait for messages.
+		var extension = new FirefoxExtension();
+
+		// Always register default auto install which tells user that extension is required
+		// if screen sharing can only work with extension.
+		if ($window.webrtcDetectedBrowser === "firefox" && $window.webrtcDetectedVersion >= 36) {
+			extension.registerAutoInstall(function() {
+				var d = $q.defer();
+				alertify.dialog.alert(translation._("Screen sharing requires a browser extension. Please add the Spreed WebRTC screen sharing extension to Firefox and try again."));
+				d.reject("Manual extension installation required");
+				return d.promise;
+			});
+		}
+
+		// Expose.
+		return extension;
+
+	}];
+
+});
diff --git a/static/js/services/services.js b/static/js/services/services.js
index 4fa9919a..a5de387c 100644
--- a/static/js/services/services.js
+++ b/static/js/services/services.js
@@ -70,7 +70,8 @@ define([
 	'services/mediadevices',
 	'services/sandbox',
 	'services/dummystream',
-	'services/usermedia'], function(_,
+	'services/usermedia',
+	'services/firefoxextension'], function(_,
 desktopNotify,
 playSound,
 safeApply,
@@ -118,7 +119,8 @@ modules,
 mediaDevices,
 sandbox,
 dummyStream,
-userMedia) {
+userMedia,
+firefoxExtension) {
 
 	var services = {
 		desktopNotify: desktopNotify,
@@ -168,7 +170,8 @@ userMedia) {
 		mediaDevices: mediaDevices,
 		sandbox: sandbox,
 		dummyStream: dummyStream,
-		userMedia: userMedia
+		userMedia: userMedia,
+		firefoxExtension: firefoxExtension
 	};
 
 	var initialize = function(angModule) {