blockAttributeTableUpdates: single signal with bool

src/app/qgisapp.cpp

@@ -9190,16 +9190,6 @@ bool QgisApp::toggleEditing( QgsMapLayer *layer, bool allowCancel )
 }
 
 
-void QgisApp::unblockAttributeTableUpdates( const QgsVectorLayer *layer )
-{
-  emit attributeTableUpdateUnblocked( layer );
-}
-
-void QgisApp::blockAttributeTableUpdates( const QgsVectorLayer *layer )
-{
-  emit attributeTableUpdateBlocked( layer );
-}
-
 void QgisApp::saveActiveLayerEdits()
 {
   saveEdits( activeLayer(), true, true );
@@ -14162,3 +14152,8 @@ void QgisApp::triggerCrashHandler()
   RaiseException( 0x12345678, 0, 0, nullptr );
 #endif
 }
+
+void QgisApp::blockAttributeTableUpdates( const QgsVectorLayer *layer, const bool blocked )
+{
+  emit attributeTableUpdateBlocked( layer, blocked );
+}

src/app/qgisapp.h

@@ -1009,18 +1009,11 @@ class APP_EXPORT QgisApp : public QMainWindow, private Ui::MainWindow
     void triggerCrashHandler();
 
     /**
-     * Emits the signal to block updates for attribute tables connected a particular \a layer
+     * Emits the signal to set the \a blocked state of attribute tables connected a particular \a layer
      *
      * \since QGIS 3.4
      */
-    void blockAttributeTableUpdates( const QgsVectorLayer *layer );
-
-    /**
-     * Emits the signal to unblock updates for attribute tables connected a particular \a layer
-     *
-     * \since QGIS 3.4
-     */
-    void unblockAttributeTableUpdates( const QgsVectorLayer *layer );
+    void blockAttributeTableUpdates( const QgsVectorLayer *layer, const bool blocked );
 
   protected:
 
@@ -1756,18 +1749,11 @@ class APP_EXPORT QgisApp : public QMainWindow, private Ui::MainWindow
     void activeLayerChanged( QgsMapLayer *layer );
 
     /**
-     * Emitted when attribute table updates for a particular \a layer must be blocked
-     *
-     * \since QGIS 3.4
-     */
-    void attributeTableUpdateBlocked( const QgsVectorLayer *layer );
-
-    /**
-     * Emitted when all attribute table updates for a particular \a layer must be unblocked
+     * Emitted when \a blocked status of attribute table updates for a particular \a layer must change
      *
      * \since QGIS 3.4
      */
-    void attributeTableUpdateUnblocked( const QgsVectorLayer *layer );
+    void attributeTableUpdateBlocked( const QgsVectorLayer *layer, const bool blocked );
 
   private:
     void startProfile( const QString &name );

src/app/qgsattributetabledialog.cpp

@@ -112,15 +112,10 @@ QgsAttributeTableDialog::QgsAttributeTableDialog( QgsVectorLayer *layer, QgsAttr
   connect( mMainView, &QgsDualView::showContextMenuExternally, this, &QgsAttributeTableDialog::showContextMenu );
 
   // Block/unblock table updates (feature cache signals)
-  connect( QgisApp::instance(), &QgisApp::attributeTableUpdateBlocked, [ = ]( const QgsVectorLayer * layer )
+  connect( QgisApp::instance(), &QgisApp::attributeTableUpdateBlocked, [ = ]( const QgsVectorLayer * layer, const bool blocked )
   {
     if ( layer == mLayer )
-      this->blockCacheUpdateSignals( true );
-  } );
-  connect( QgisApp::instance(), &QgisApp::attributeTableUpdateUnblocked, [ = ]( const QgsVectorLayer * layer )
-  {
-    if ( layer == mLayer )
-      this->blockCacheUpdateSignals( false );
+      this->blockCacheUpdateSignals( blocked );
   } );
   // Massive rollbacks can also freeze the GUI due to the feature cache signals
   connect( mLayer, &QgsVectorLayer::beforeRollBack, [ = ] { this->blockCacheUpdateSignals( true ); } );

src/app/qgsfieldcalculator.cpp

@@ -269,7 +269,7 @@ void QgsFieldCalculator::accept()
 
     // Begin feature modifications, block updates for attr tables
     // connected to this layer
-    QgisApp::instance()->blockAttributeTableUpdates( mVectorLayer );
+    QgisApp::instance()->blockAttributeTableUpdates( mVectorLayer, true );
 
     //go through all the features and change the new attribute
     QgsFeature feature;
@@ -321,7 +321,7 @@ void QgsFieldCalculator::accept()
       rownum++;
     }
 
-    QgisApp::instance()->unblockAttributeTableUpdates( mVectorLayer );
+    QgisApp::instance()->blockAttributeTableUpdates( mVectorLayer, false );
 
     QApplication::restoreOverrideCursor();