From 49ad563550ba9d2d03fc7a519ccb857a6d08791c Mon Sep 17 00:00:00 2001
From: Kitsune Ral <Kitsune-Ral@users.sf.net>
Date: Fri, 23 Nov 2018 15:38:59 +0900
Subject: Room/Connection: don't save the just loaded room cache

---
 lib/connection.cpp |  6 +++---
 lib/connection.h   |  2 +-
 lib/room.cpp       |  5 +++--
 lib/room.h         | 17 +++++++++--------
 4 files changed, 16 insertions(+), 14 deletions(-)

(limited to 'lib')

diff --git a/lib/connection.cpp b/lib/connection.cpp
index 53835a80..9372acd5 100644
--- a/lib/connection.cpp
+++ b/lib/connection.cpp
@@ -316,7 +316,7 @@ void Connection::sync(int timeout)
     });
 }
 
-void Connection::onSyncSuccess(SyncData &&data) {
+void Connection::onSyncSuccess(SyncData &&data, bool fromCache) {
     d->data->setLastEvent(data.nextBatch());
     for (auto&& roomData: data.takeRoomData())
     {
@@ -337,7 +337,7 @@ void Connection::onSyncSuccess(SyncData &&data) {
         }
         if ( auto* r = provideRoom(roomData.roomId, roomData.joinState) )
         {
-            r->updateData(std::move(roomData));
+            r->updateData(std::move(roomData), fromCache);
             if (d->firstTimeRooms.removeOne(r))
                 emit loadedRoomState(r);
         }
@@ -1156,7 +1156,7 @@ void Connection::loadState()
     // TODO: to handle load failures, instead of the above block:
     // 1. Do initial sync on failed rooms without saving the nextBatch token
     // 2. Do the sync across all rooms as normal
-    onSyncSuccess(std::move(sync));
+    onSyncSuccess(std::move(sync), true);
     qCDebug(PROFILER) << "*** Cached state for" << userId() << "loaded in" << et;
 }
 
diff --git a/lib/connection.h b/lib/connection.h
index 20a1f47e..32533b6e 100644
--- a/lib/connection.h
+++ b/lib/connection.h
@@ -677,7 +677,7 @@ namespace QMatrixClient
             /**
              * Completes loading sync data.
              */
-            void onSyncSuccess(SyncData &&data);
+            void onSyncSuccess(SyncData &&data, bool fromCache = false);
 
         private:
             class Private;
diff --git a/lib/room.cpp b/lib/room.cpp
index 2d958dca..22a0d585 100644
--- a/lib/room.cpp
+++ b/lib/room.cpp
@@ -1106,7 +1106,7 @@ QString Room::roomMembername(const QString& userId) const
     return roomMembername(user(userId));
 }
 
-void Room::updateData(SyncRoomData&& data)
+void Room::updateData(SyncRoomData&& data, bool fromCache)
 {
     if( d->prevBatch.isEmpty() )
         d->prevBatch = data.timelinePrevBatch;
@@ -1172,7 +1172,8 @@ void Room::updateData(SyncRoomData&& data)
     if (roomChanges != Change::NoChange)
     {
         emit changed(roomChanges);
-        connection()->saveRoomState(this);
+        if (!fromCache)
+            connection()->saveRoomState(this);
     }
 }
 
diff --git a/lib/room.h b/lib/room.h
index ab8298d4..480de6fe 100644
--- a/lib/room.h
+++ b/lib/room.h
@@ -456,14 +456,6 @@ namespace QMatrixClient
             /// The room is about to be deleted
             void beforeDestruction(Room*);
 
-        public: // Used by Connection - not a part of the client API
-            QJsonObject toJson() const;
-            void updateData(SyncRoomData&& data );
-
-            // Clients should use Connection::joinRoom() and Room::leaveRoom()
-            // to change the room state
-            void setJoinState( JoinState state );
-
         protected:
             /// Returns true if any of room names/aliases has changed
             virtual Changes processStateEvent(const RoomEvent& e);
@@ -473,10 +465,19 @@ namespace QMatrixClient
             virtual void onAddHistoricalTimelineEvents(rev_iter_t /*from*/) { }
             virtual void onRedaction(const RoomEvent& /*prevEvent*/,
                                      const RoomEvent& /*after*/) { }
+            virtual QJsonObject toJson() const;
+            virtual void updateData(SyncRoomData&& data, bool fromCache = false);
 
         private:
+            friend class Connection;
+
             class Private;
             Private* d;
+
+            // This is called from Connection, reflecting a state change that
+            // arrived from the server. Clients should use
+            // Connection::joinRoom() and Room::leaveRoom() to change the state.
+            void setJoinState(JoinState state);
     };
 
     class MemberSorter
-- 
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