Adds confirmation dialog when closing shared video.

lang/main.json

@@ -163,6 +163,8 @@
         "Remove": "Remove",
         "shareVideoTitle": "Share a video",
         "shareVideoLinkError": "Please provide a correct youtube link.",
+        "removeSharedVideoTitle": "Remove shared video",
+        "removeSharedVideoMsg": "Are you sure you would like to remove your shared video?",
         "WaitingForHost": "Waiting for the host ...",
         "WaitForHostMsg": "The conference <b>__room__ </b> has not yet started. If you are the host then please authenticate. Otherwise, please wait for the host to arrive.",
         "IamHost": "I am the host",

modules/UI/shared_video/SharedVideo.js

@@ -43,7 +43,8 @@ export default class SharedVideoManager {
             return;
         }
 
-        this.emitter.emit(UIEvents.UPDATE_SHARED_VIDEO, null, 'stop');
+        proposeToClose().then(() =>
+            this.emitter.emit(UIEvents.UPDATE_SHARED_VIDEO, null, 'stop'));
     }
 
     /**
@@ -424,6 +425,30 @@ function getYoutubeLink(url) {
     return (url.match(p)) ? RegExp.$1 : false;
 }
 
+/**
+ * Ask user if he want to close shared video.
+ */
+function proposeToClose() {
+    return new Promise(function (resolve, reject) {
+        messageHandler.openTwoButtonDialog(
+            "dialog.removeSharedVideoTitle",
+            null,
+            "dialog.removeSharedVideoMsg",
+            null,
+            false,
+            "dialog.Remove",
+            function(e,v,m,f) {
+                if (v) {
+                    resolve();
+                } else {
+                    reject();
+                }
+            }
+        );
+
+    });
+}
+
 /**
  * Ask user for shared video url to share with others.
  * Dialog validates client input to allow only youtube urls.