Send read receipts

Automatically dismiss unread notifications when the window regains
focus.

fixes #111
fixes #68

include/MatrixClient.h

@@ -59,6 +59,7 @@ public:
         void leaveRoom(const QString &roomId);
         void sendTypingNotification(const QString &roomid, int timeoutInMillis = 20000);
         void removeTypingNotification(const QString &roomid);
+        void readEvent(const QString &room_id, const QString &event_id);
 
         QUrl getHomeServer() { return server_; };
         int transactionId() { return txn_id_; };

include/RoomList.h

@@ -66,6 +66,7 @@ public slots:
         void closeJoinRoomDialog(bool isJoining, QString roomAlias);
         void openLeaveRoomDialog(const QString &room_id);
         void closeLeaveRoomDialog(bool leaving, const QString &room_id);
+        void clearRoomMessageCount(const QString &room_id);
 
 private:
         void calculateUnreadMessageCount();

include/TimelineItem.h

@@ -66,7 +66,8 @@ public:
                      QWidget *parent);
 
         void setUserAvatar(const QImage &pixmap);
-        DescInfo descriptionMessage() const { return descriptionMsg_; };
+        DescInfo descriptionMessage() const { return descriptionMsg_; }
+        QString eventId() const { return event_id_; }
 
         ~TimelineItem();
 
@@ -85,6 +86,7 @@ private:
         void setupSimpleLayout();
 
         QString replaceEmoji(const QString &body);
+        QString event_id_;
 
         DescInfo descriptionMsg_;
 

include/TimelineView.h

@@ -121,15 +121,20 @@ private slots:
 
 signals:
         void updateLastTimelineMessage(const QString &user, const DescInfo &info);
+        void clearUnreadMessageCount(const QString &room_id);
 
 protected:
         void paintEvent(QPaintEvent *event) override;
+        void showEvent(QShowEvent *event) override;
+        bool event(QEvent *event) override;
 
 private:
         void init();
         void addTimelineItem(TimelineItem *item, TimelineDirection direction);
         void updateLastSender(const QString &user_id, TimelineDirection direction);
         void notifyForLastEvent();
+        void readLastEvent() const;
+        QString getLastEventId() const;
 
         // Used to determine whether or not we should prefix a message with the
         // sender's name.

include/TimelineViewManager.h

@@ -58,6 +58,7 @@ public:
         static QMap<QString, QString> DISPLAY_NAMES;
 
 signals:
+        void clearRoomMessageCount(QString roomid);
         void unreadMessages(QString roomid, int count);
         void updateRoomsLastMessage(const QString &user, const DescInfo &info);