Added mUserDisplayName, a filter to resolve a user display name from a user_id

2 files changed, 42 insertions, 9 deletions

diff --git a/webclient/components/matrix/matrix-filter.js b/webclient/components/matrix/matrix-filter.js
index a9bdbf66d9..0922684e3b 100644
--- a/webclient/components/matrix/matrix-filter.js
+++ b/webclient/components/matrix/matrix-filter.js
@@ -97,4 +97,37 @@ angular.module('matrixFilter', [])
 
         return roomName;
     };
+}])
+
+// Compute the user display name in a room according to the data already downloaded
+.filter('mUserDisplayName', ['$rootScope', function($rootScope) {
+    return function(user_id, room_id) {
+        var displayName;
+    
+        // Try to find the user name among presence data
+        // Warning: that means we have received before a presence event for this
+        // user which cannot be guaranted.
+        // However, if we get the info by this way, we are sure this is the latest user display name
+        // See FIXME comment below
+        if (user_id in $rootScope.presence) {
+            displayName = $rootScope.presence[user_id].content.displayname;
+        }
+            
+        // FIXME: Would like to use the display name as defined in room members of the room.
+        // But this information is the display name of the user when he has joined the room.
+        // It does not take into account user display name update
+        if (room_id) {
+            var room = $rootScope.events.rooms[room_id];
+            if (room && (user_id in room.members)) {
+                var member = room.members[user_id];
+                displayName = member.content.displayname;
+            }
+        }
+        
+        if (undefined === displayName) {
+            // By default, use the user ID
+            displayName = user_id;
+        }
+        return displayName;
+    };
 }]);
diff --git a/webclient/recents/recents.html b/webclient/recents/recents.html
index a202473dd4..2e1f897725 100644
--- a/webclient/recents/recents.html
+++ b/webclient/recents/recents.html
@@ -19,35 +19,35 @@
                     <div ng-hide="room.membership === 'invite'" ng-switch="room.lastMsg.type" >
                         <div ng-switch-when="m.room.member">
                             <span ng-if="'join' === room.lastMsg.content.membership">
-                                {{ room.lastMsg.state_key }} joined
+                                {{ room.lastMsg.state_key | mUserDisplayName: room.room_id}} joined
                             </span>
                             <span ng-if="'leave' === room.lastMsg.content.membership">
                                 <span ng-if="room.lastMsg.user_id === room.lastMsg.state_key">
-                                    {{room.lastMsg.state_key }} left
+                                    {{room.lastMsg.state_key | mUserDisplayName: room.room_id }} left
                                 </span>
                                 <span ng-if="room.lastMsg.user_id !== room.lastMsg.state_key">
-                                    {{ room.lastMsg.user_id }}
+                                    {{ room.lastMsg.user_id | mUserDisplayName: room.room_id }}
                                     {{ {"join": "kicked", "ban": "unbanned"}[room.lastMsg.content.prev] }}
-                                    {{ room.lastMsg.state_key }}
+                                    {{ room.lastMsg.state_key | mUserDisplayName: room.room_id }}
                                 </span>
                             </span>
                             <span ng-if="'invite' === room.lastMsg.content.membership || 'ban' === room.lastMsg.content.membership">
-                                {{ room.lastMsg.user_id }}
+                                {{ room.lastMsg.user_id | mUserDisplayName: room.room_id }}
                                 {{ {"invite": "invited", "ban": "banned"}[room.lastMsg.content.membership] }}
-                                {{ room.lastMsg.state_key }}
+                                {{ room.lastMsg.state_key | mUserDisplayName: room.room_id }}
                             </span>
                         </div>
 
                         <div ng-switch-when="m.room.message">
                             <div ng-switch="room.lastMsg.content.msgtype">
                                 <div ng-switch-when="m.text">
-                                    {{ room.lastMsg.user_id }} :
+                                    {{ room.lastMsg.user_id | mUserDisplayName: room.room_id }} :
                                     <span ng-bind-html="(room.lastMsg.content.body) | linky:'_blank'">
                                     </span>
                                 </div>
 
                                 <div ng-switch-when="m.image">
-                                    {{ room.lastMsg.user_id }} sent an image
+                                    {{ room.lastMsg.user_id | mUserDisplayName: room.room_id }} sent an image
                                 </div>
 
                                 <div ng-switch-when="m.emote">
@@ -62,7 +62,7 @@
                         </div>
 
                         <div ng-switch-default>
-                            <div ng-if="room.lastMsg.type.indexOf('m.call.') == 0">
+                            <div ng-if="room.lastMsg.type.indexOf('m.call.') === 0">
                                 Call
                             </div>
                         </div>