Clearly show when an user cannot join a room.

In realtime show who kicked or banned him.

webclient/room/room-controller.js

@@ -27,6 +27,7 @@ angular.module('RoomController', ['ngSanitize', 'matrixFilter', 'mFileInput'])
 
     $scope.state = {
         user_id: matrixService.config().user_id,
+        permission_denied: undefined, // If defined, this string contains the reason why the user cannot join the room
         first_pagination: true, // this is toggled off when the first pagination is done
         can_paginate: false, // this is toggled off when we are not ready yet to paginate or when we run out of items
         paginating: false, // used to avoid concurrent pagination requests pulling in dup contents
@@ -129,6 +130,28 @@ angular.module('RoomController', ['ngSanitize', 'matrixFilter', 'mFileInput'])
                 $scope.state.waiting_for_joined_event = false;
                 onInit3();
             }
+            else if (event.state_key === $scope.state.user_id && "invite" !== event.membership && "join" !== event.membership) {
+                var user;
+                        
+                if ($scope.members[event.user_id]) {
+                    user = $scope.members[event.user_id].displayname;
+                }
+                if (user) {
+                    user = user + " (" + event.user_id + ")";
+                }
+                else {
+                    user = event.user_id;
+                }
+
+                 
+                if ("ban" === event.membership) {
+                    $scope.state.permission_denied = "You have been banned by " + user;
+                }
+                else {
+                    $scope.state.permission_denied = "You have been kicked by " + user;
+                }
+                
+            }
             else {
                 scrollToBottom();
                 updateMemberList(event); 
@@ -654,7 +677,7 @@ angular.module('RoomController', ['ngSanitize', 'matrixFilter', 'mFileInput'])
                         },
                         function(reason) {
                             console.log("Can't join room: " + JSON.stringify(reason));
-                            $scope.feedback = "You do not have permission to join this room";
+                            $scope.state.permission_denied = "You do not have permission to join this room";
                         });
                 }
                 else {

webclient/room/room.html

@@ -30,7 +30,7 @@
         <div ng-include="'recents/recents.html'"></div>
     </div>
 
-    <div id="usersTableWrapper">
+    <div id="usersTableWrapper" ng-hide="state.permission_denied">
         <table id="usersTable">
             <tr ng-repeat="member in members | orderMembersList">
                 <td class="userAvatar mouse-pointer" ng-click="$parent.goToUserPage(member.id)" ng-class="member.membership == 'invite' ? 'invited' : ''">
@@ -49,7 +49,7 @@
         </table>
     </div>
     
-    <div id="messageTableWrapper" keep-scroll>
+    <div id="messageTableWrapper" ng-hide="state.permission_denied" keep-scroll>
         <!-- FIXME: need to have better timestamp semantics than the (msg.content.hsob_ts || msg.ts) hack below -->
         <table id="messageTable" infinite-scroll="paginateMore()">
             <tr ng-repeat="msg in events.rooms[room_id].messages"
@@ -127,6 +127,10 @@
             </tr>
         </table>
     </div>
+        
+    <div ng-show="state.permission_denied">
+        {{ state.permission_denied }}
+    </div>
     
     </div>
     </div>
@@ -139,11 +143,13 @@
                         {{ state.user_id }} 
                     </td>
                     <td width="*">
-                        <textarea id="mainInput" rows="1" ng-model="textInput" ng-enter="send()" ng-focus="true" autocomplete="off" tab-complete/>
+                        <textarea id="mainInput" rows="1" ng-model="textInput" ng-enter="send()"
+                                  ng-disabled="state.permission_denied"
+                                  ng-focus="true"  autocomplete="off" tab-complete/>
                     </td>
                     <td id="buttonsCell">
-                        <button ng-click="send()">Send</button>
+                        <button ng-click="send()" ng-disabled="state.permission_denied">Send</button>
-                        <button m-file-input="imageFileToSend" class="extraControls">Image</button>
+                        <button m-file-input="imageFileToSend" class="extraControls" ng-disabled="state.permission_denied">Image</button>
                     </td>
                 </tr>
             </table>
@@ -151,11 +157,11 @@
             <div class="extraControls">
                 <span>
                    Invite a user: 
-                        <input ng-model="userIDToInvite" size="32" type="text"  ng-enter="inviteUser()" placeholder="User ID (ex:@user:homeserver)"/>     
+                        <input ng-model="userIDToInvite" size="32" type="text" ng-enter="inviteUser()" ng-disabled="state.permission_denied" placeholder="User ID (ex:@user:homeserver)"/>     
-                        <button ng-click="inviteUser()">Invite</button>
+                        <button ng-click="inviteUser()" ng-disabled="state.permission_denied">Invite</button>
                 </span>
-                <button ng-click="leaveRoom()">Leave</button>
+                <button ng-click="leaveRoom()" ng-disabled="state.permission_denied">Leave</button>
-                <button ng-click="startVoiceCall()" ng-show="(currentCall == undefined || currentCall.state == 'ended') && memberCount() == 2">Voice Call</button>
+                <button ng-click="startVoiceCall()" ng-show="(currentCall == undefined || currentCall.state == 'ended') && memberCount() == 2" ng-disabled="state.permission_denied">Voice Call</button>
             </div>
         
             {{ feedback }}