Feed count changes signal occurrences optimized.

src/core/messagesmodel.cpp

@@ -239,6 +239,7 @@ bool MessagesModel::setMessageRead(int row_index, int read) {
     // can reflect.
     emit dataChanged(index(row_index, 0),
                      index(row_index, columnCount() - 1));
+    emit feedCountsChanged();
     return true;
   }
   else {
@@ -409,6 +410,8 @@ bool MessagesModel::setBatchMessagesRead(const QModelIndexList &messages, int re
     // FULLY reload the model if underlying data is changed.
     select();
     fetchAll();
+
+    emit feedCountsChanged();
     return true;
   }
   else {
@@ -453,6 +456,8 @@ bool MessagesModel::setAllMessagesRead(int read) {
     // FULLY reload the model if underlying data is changed.
     select();
     fetchAll();
+
+    emit feedCountsChanged();
     return true;
   }
   else {

src/core/messagesmodel.h

@@ -83,6 +83,11 @@ class MessagesModel : public QSqlTableModel {
     // Loads messages of given feeds.
     void loadMessages(const QList<int> feed_ids);
 
+  signals:
+    // Emitted if some persistent change is made which affects
+    // count of "unread/all" messages.
+    void feedCountsChanged();
+
   protected:
     QStringList textualFeeds() const;
 

src/gui/messagesview.cpp

@@ -6,9 +6,9 @@
 #include <QProcess>
 
 #include "gui/messagesview.h"
+#include "gui/formmain.h"
 #include "core/messagesproxymodel.h"
 #include "core/messagesmodel.h"
-#include "gui/formmain.h"
 #include "core/settings.h"
 
 
@@ -17,6 +17,10 @@ MessagesView::MessagesView(QWidget *parent)
   m_proxyModel = new MessagesProxyModel(this);
   m_sourceModel = m_proxyModel->sourceModel();
 
+  // Forward count changes to the view.
+  connect(m_sourceModel, SIGNAL(feedCountsChanged()),
+          this, SIGNAL(feedCountsChanged()));
+
   setModel(m_proxyModel);
 
   // NOTE: It is recommended to call this after the model is set
@@ -170,7 +174,6 @@ void MessagesView::currentChanged(const QModelIndex &current,
     }
 
     emit currentMessageChanged(m_sourceModel->messageAt(mapped_current_index.row()));
-    emit feedCountsChanged();
   }
   else {
     emit currentMessageRemoved();