From 8fa87c280732d78b2e100962e022107a5bd18ee0 Mon Sep 17 00:00:00 2001
From: Rodrigo Nascimento <rodrigoknascimento@gmail.com>
Date: Fri, 11 Dec 2015 15:20:15 -0200
Subject: [PATCH] Prompt users to install extentions to enable screen sharing

---
 i18n/en.i18n.json                             |  3 ++
 .../rocketchat-ui-master/master/main.html     |  1 +
 .../views/app/videoCall/videoCall.coffee      |  4 +--
 .../views/app/videoCall/videoCall.html        |  2 +-
 packages/rocketchat-webrtc/WebRTCClass.coffee | 32 +++++++++++++++++--
 5 files changed, 36 insertions(+), 6 deletions(-)

diff --git a/i18n/en.i18n.json b/i18n/en.i18n.json
index 426e1ae7cb0d..defdb3b39305 100644
--- a/i18n/en.i18n.json
+++ b/i18n/en.i18n.json
@@ -494,6 +494,9 @@
   "Username_Change_Disabled" : "Your Rocket.Chat administrator has disabled the changing of usernames",
   "Username_description" : "The username is used to allow others to mention you in messages.",
   "Username_invalid" : "<strong>%s</strong> is not a valid username,<br/> use only letters, numbers, dots and dashes",
+  "Screen_Share" : "Screen Share",
+  "You_need_install_an_extension_to_allow_screen_sharing" : "You need install an extension to allow screen sharing",
+  "Install_Extension" : "Install Extension",
   "Username_title" : "Register username",
   "Username_unavaliable" : "<strong>%s</strong> is already in use :(",
   "Users" : "Users",
diff --git a/packages/rocketchat-ui-master/master/main.html b/packages/rocketchat-ui-master/master/main.html
index 4219a22d7228..abf74f660a88 100644
--- a/packages/rocketchat-ui-master/master/main.html
+++ b/packages/rocketchat-ui-master/master/main.html
@@ -13,6 +13,7 @@
 	<meta name="msapplication-config" content="/images/logo/browserconfig.xml?v=3">
 	<meta name="theme-color" content="#04436a">
 	<link rel="manifest" href="/images/logo/manifest.json?v=3">
+	<link rel="chrome-webstore-item" href="https://chrome.google.com/webstore/detail/nocfbnnmjnndkbipkabodnheejiegccf">
 	<link rel="icon" sizes="any" type="image/svg+xml" href="/assets/favicon.svg?v=3">
 	<link rel="icon" sizes="256x256" type="image/png" href="/assets/favicon_256.png?v=3">
 	<link rel="icon" sizes="192x192" type="image/png" href="/assets/favicon_192.png?v=3">
diff --git a/packages/rocketchat-ui/views/app/videoCall/videoCall.coffee b/packages/rocketchat-ui/views/app/videoCall/videoCall.coffee
index a3431aa73a0f..d0ac0bab637e 100644
--- a/packages/rocketchat-ui/views/app/videoCall/videoCall.coffee
+++ b/packages/rocketchat-ui/views/app/videoCall/videoCall.coffee
@@ -29,8 +29,8 @@ Template.videoCall.helpers
 	audioAndVideoEnabled: ->
 		return WebRTC.getInstanceByRoomId(Session.get('openedRoom')).audioEnabled.get() and WebRTC.getInstanceByRoomId(Session.get('openedRoom')).videoEnabled.get()
 
-	screenShareAvaliable: ->
-		return WebRTC.getInstanceByRoomId(Session.get('openedRoom')).screenShareAvaliable
+	screenShareAvailable: ->
+		return WebRTC.getInstanceByRoomId(Session.get('openedRoom')).screenShareAvailable
 
 	screenShareEnabled: ->
 		return WebRTC.getInstanceByRoomId(Session.get('openedRoom')).screenShareEnabled.get()
diff --git a/packages/rocketchat-ui/views/app/videoCall/videoCall.html b/packages/rocketchat-ui/views/app/videoCall/videoCall.html
index bf473be61e6d..38ed5e6d774a 100644
--- a/packages/rocketchat-ui/views/app/videoCall/videoCall.html
+++ b/packages/rocketchat-ui/views/app/videoCall/videoCall.html
@@ -43,7 +43,7 @@
 						{{else}}
 							<button class="enable-video button"><i class="icon-eye"></i></button>
 						{{/if}}
-						{{#if screenShareAvaliable}}
+						{{#if screenShareAvailable}}
 							{{#if screenShareEnabled}}
 								<button class="disable-screen-share button red"><i class="icon-desktop"></i></button>
 							{{else}}
diff --git a/packages/rocketchat-webrtc/WebRTCClass.coffee b/packages/rocketchat-webrtc/WebRTCClass.coffee
index ffa9785b84b2..eee787913b41 100644
--- a/packages/rocketchat-webrtc/WebRTCClass.coffee
+++ b/packages/rocketchat-webrtc/WebRTCClass.coffee
@@ -135,8 +135,15 @@ class WebRTCClass
 		@monitor = false
 		@autoAccept = false
 
-		@navigator = if navigator.mozGetUserMedia? then 'firefox' else 'chrome'
-		@screenShareAvaliable = document.cookie.includes('rocketchatscreenshare=chrome') is true or window.rocketchatscreenshare is 'firefox'
+		@navigator = undefined
+		if navigator.userAgent.toLocaleLowerCase().indexOf('chrome') > -1
+			@navigator = 'chrome'
+		else if navigator.userAgent.toLocaleLowerCase().indexOf('firefox') > -1
+			@navigator = 'firefox'
+		else if navigator.userAgent.toLocaleLowerCase().indexOf('safari') > -1
+			@navigator = 'safari'
+
+		@screenShareAvailable = @navigator in ['chrome', 'firefox']
 
 		@media =
 			video: true
@@ -308,11 +315,30 @@ class WebRTCClass
 			navigator.getUserMedia media, onSuccess, onError
 			return
 
-		if @screenShareAvaliable isnt true
+		if @screenShareAvailable isnt true
 			console.log 'Screen share is not avaliable'
 			return
 
 		getScreen = (audioStream) =>
+			if document.cookie.indexOf("rocketchatscreenshare=chrome") is -1 and not window.rocketchatscreenshare?
+				swal
+					type: "warning"
+					title: TAPi18n.__ "Screen_Share"
+					text: TAPi18n.__ "You_need_install_an_extension_to_allow_screen_sharing"
+					html: true
+					showCancelButton: true
+					confirmButtonText: TAPi18n.__ "Install_Extension"
+					cancelButtonText: TAPi18n.__ "Cancel"
+				, (isConfirm) =>
+					if isConfirm
+						if @navigator is 'chrome'
+							chrome.webstore.install undefined, undefined, ->
+								window.open('https://chrome.google.com/webstore/detail/rocketchat-screen-share/nocfbnnmjnndkbipkabodnheejiegccf')
+						else if @navigator is 'firefox'
+							window.open('https://addons.mozilla.org/en-GB/firefox/addon/rocketchat-screen-share/')
+
+				return
+
 			getScreenSuccess = (stream) =>
 				if audioStream?
 					stream.addTrack(audioStream.getAudioTracks()[0])