React correctly to remotely joined rooms

include/TimelineViewManager.h

@@ -40,6 +40,10 @@ public:
         void initialize(const Rooms &rooms);
         // Empty initialization.
         void initialize(const QList<QString> &rooms);
+
+        void addRoom(const JoinedRoom &room, const QString &room_id);
+        void addRoom(const QString &room_id);
+
         void sync(const Rooms &rooms);
         void clearAll();
 

src/ChatPage.cc

@@ -305,8 +305,9 @@ ChatPage::syncCompleted(const SyncResponse &response)
                 RoomState room_state;
 
                 // Merge the new updates for rooms that we are tracking.
-                if (state_manager_.contains(it.key()))
+                if (state_manager_.contains(it.key())) {
                         room_state = state_manager_[it.key()];
+                }
 
                 room_state.updateFromEvents(it.value().state().events());
                 room_state.updateFromEvents(it.value().timeline().events());
@@ -319,8 +320,35 @@ ChatPage::syncCompleted(const SyncResponse &response)
                         oldState.update(room_state);
                         state_manager_.insert(it.key(), oldState);
                 } else {
-                        // TODO: Add newly joined room
+                        RoomState room_state;
-                        qWarning() << "New rooms cannot be added after initial sync, yet.";
+
+                        // Build the current state from the timeline and state events.
+                        room_state.updateFromEvents(it.value().state().events());
+                        room_state.updateFromEvents(it.value().timeline().events());
+
+                        // Remove redundant memberships.
+                        room_state.removeLeaveMemberships();
+
+                        // Resolve room name and avatar. e.g in case of one-to-one chats.
+                        room_state.resolveName();
+                        room_state.resolveAvatar();
+
+                        updateDisplayNames(room_state);
+
+                        state_manager_.insert(it.key(), room_state);
+                        settingsManager_.insert(it.key(),
+                                    QSharedPointer<RoomSettings>(new RoomSettings(it.key())));
+
+                        for (const auto membership : room_state.memberships) {
+                            auto uid = membership.sender();
+                            auto url = membership.content().avatarUrl();
+
+                            if (!url.toString().isEmpty())
+                                AvatarProvider::setAvatarUrl(uid, url);
+                        }
+
+                        view_manager_->addRoom(it.value(), it.key());
+
                 }
 
                 if (it.key() == current_room_)
@@ -561,6 +589,7 @@ ChatPage::showQuickSwitcher()
 void
 ChatPage::joinedRoom(const QString &room_id)
 {
+    if (!state_manager_.contains(room_id)) {
         RoomState room_state;
 
         state_manager_.insert(room_id, room_state);
@@ -570,6 +599,9 @@ ChatPage::joinedRoom(const QString &room_id)
         room_list_->addRoom(settingsManager_[room_id], state_manager_[room_id], room_id);
 
         this->changeTopRoomInfo(room_id);
+        room_list_->highlightSelectedRoom(room_id);
+    }
+
 }
 
 void

src/RoomList.cc

@@ -103,9 +103,7 @@ RoomList::addRoom(const QSharedPointer<RoomSettings> &settings,
 
         rooms_.insert(room_id, QSharedPointer<RoomInfoListItem>(room_item));
 
-        int pos = contentsLayout_->count() - 1;
+        contentsLayout_->insertWidget(0, room_item);}
-        contentsLayout_->insertWidget(pos, room_item);
-}
 
 void
 RoomList::removeRoom(const QString &room_id, bool reset)
@@ -196,8 +194,9 @@ RoomList::sync(const QMap<QString, RoomState> &states)
                 auto state   = it.value();
 
                 // TODO: Add the new room to the list.
-                if (!rooms_.contains(room_id))
+                if (!rooms_.contains(room_id)) {
-                        continue;
+                        addRoom(QSharedPointer<RoomSettings>(new RoomSettings(room_id)), state, room_id);
+                }
 
                 auto room = rooms_[room_id];
 

src/TimelineViewManager.cc

@@ -101,19 +101,7 @@ void
 TimelineViewManager::initialize(const Rooms &rooms)
 {
         for (auto it = rooms.join().constBegin(); it != rooms.join().constEnd(); it++) {
-                auto roomid = it.key();
+                addRoom(it.value(), it.key());
-
-                // Create a history view with the room events.
-                TimelineView *view = new TimelineView(it.value().timeline(), client_, it.key());
-                views_.insert(it.key(), QSharedPointer<TimelineView>(view));
-
-                connect(view,
-                        &TimelineView::updateLastTimelineMessage,
-                        this,
-                        &TimelineViewManager::updateRoomsLastMessage);
-
-                // Add the view in the widget stack.
-                addWidget(view);
         }
 }
 
@@ -121,9 +109,32 @@ void
 TimelineViewManager::initialize(const QList<QString> &rooms)
 {
         for (const auto &roomid : rooms) {
-                // Create a history view without any events.
+                addRoom(roomid);
-                TimelineView *view = new TimelineView(client_, roomid);
+        }
-                views_.insert(roomid, QSharedPointer<TimelineView>(view));
+}
+
+void
+TimelineViewManager::addRoom(const JoinedRoom &room, const QString &room_id)
+{
+        // Create a history view with the room events.
+        TimelineView *view = new TimelineView(room.timeline(), client_, room_id);
+        views_.insert(room_id, QSharedPointer<TimelineView>(view));
+
+        connect(view,
+            &TimelineView::updateLastTimelineMessage,
+            this,
+            &TimelineViewManager::updateRoomsLastMessage);
+
+        // Add the view in the widget stack.
+        addWidget(view);
+}
+
+void
+TimelineViewManager::addRoom(const QString &room_id)
+{
+        // Create a history view without any events.
+        TimelineView *view = new TimelineView(client_, room_id);
+        views_.insert(room_id, QSharedPointer<TimelineView>(view));
 
         connect(view,
             &TimelineView::updateLastTimelineMessage,
@@ -132,7 +143,6 @@ TimelineViewManager::initialize(const QList<QString> &rooms)
 
         // Add the view in the widget stack.
         addWidget(view);
-        }
 }
 
 void