Merge pull request #263 from QMatrixClient/kitsune-lazy-loading

Lazy loading members

1 files changed, 31 insertions, 1 deletions

diff --git a/lib/syncdata.h b/lib/syncdata.h
index aa8948bc..8694626e 100644
--- a/lib/syncdata.h
+++ b/lib/syncdata.h
@@ -22,11 +22,41 @@
 #include "events/stateevent.h"
 
 namespace QMatrixClient {
+    /// Room summary, as defined in MSC688
+    /**
+     * Every member of this structure is an Omittable; as per the MSC, only
+     * changed values are sent from the server so if nothing is in the payload
+     * the respective member will be omitted. In particular, `heroes.omitted()`
+     * means that nothing has come from the server; heroes.value().isEmpty()
+     * means a peculiar case of a room with the only member - the current user.
+     */
+    struct RoomSummary
+    {
+        Omittable<int> joinedMemberCount;
+        Omittable<int> invitedMemberCount;
+        Omittable<QStringList> heroes; //< mxids of users to take part in the room name
+
+        bool isEmpty() const;
+        /// Merge the contents of another RoomSummary object into this one
+        /// \return true, if the current object has changed; false otherwise
+        bool merge(const RoomSummary& other);
+
+        friend QDebug operator<<(QDebug dbg, const RoomSummary& rs);
+    };
+
+    template <>
+    struct JsonObjectConverter<RoomSummary>
+    {
+        static void dumpTo(QJsonObject& jo, const RoomSummary& rs);
+        static void fillFrom(const QJsonObject& jo, RoomSummary& rs);
+    };
+
     class SyncRoomData
     {
         public:
             QString roomId;
             JoinState joinState;
+            RoomSummary summary;
             StateEvents state;
             RoomEvents timeline;
             Events ephemeral;
@@ -70,7 +100,7 @@ namespace QMatrixClient {
 
             QStringList unresolvedRooms() const { return unresolvedRoomIds; }
 
-            static std::pair<int, int> cacheVersion() { return { 9, 0 }; }
+            static std::pair<int, int> cacheVersion() { return { 10, 0 }; }
             static QString fileNameForRoom(QString roomId);
 
         private: