Properly implemented focusedDockWidgetChanged() signal

src/DockManager.cpp

@@ -504,6 +504,7 @@ void DockManagerPrivate::updateDockWidgetFocus(CDockWidget* DockWidget)
 		updateDockWidgetFocusStyle(FocusedDockWidget, false);
 	}
 
+	CDockWidget* old = FocusedDockWidget;
 	if (DockWidget != FocusedDockWidget)
 	{
 		std::cout << "!!!!!!!!!!!! focusedDockWidgetChanged " << (FocusedDockWidget ? FocusedDockWidget->objectName().toStdString() : "-")
@@ -554,6 +555,11 @@ void DockManagerPrivate::updateDockWidgetFocus(CDockWidget* DockWidget)
         updateFloatingWidgetFocusStyle(FloatingWidget, true);
     }
 #endif
+
+    if (old != DockWidget)
+    {
+    	emit _this->focusedDockWidgetChanged(old, DockWidget);
+    }
 }
 
 
@@ -720,6 +726,10 @@ bool CDockManager::restoreState(const QByteArray &state, int version)
 		show();
 	}
 
+	if (d->FocusedDockWidget)
+	{
+		updateDockWidgetFocusStyle(d->FocusedDockWidget, false);
+	}
 	return Result;
 }
 
@@ -1019,6 +1029,10 @@ CIconProvider& CDockManager::iconProvider()
 //===========================================================================
 void CDockManager::onApplicationFocusChanged(QWidget* focusedOld, QWidget* focusedNow)
 {
+	if (isRestoringState())
+	{
+		return;
+	}
 	std::cout << "CDockManager::onFocusChanged" << std::endl;
 	Q_UNUSED(focusedOld)
 	if (!focusedNow)
@@ -1060,6 +1074,11 @@ void CDockManager::onApplicationFocusChanged(QWidget* focusedOld, QWidget* focus
 //===========================================================================
 void CDockManager::onFocusedDockAreaViewToggled(bool Open)
 {
+	if (isRestoringState())
+	{
+		return;
+	}
+
 	CDockAreaWidget* DockArea = qobject_cast<CDockAreaWidget*>(sender());
 	if (!DockArea || Open)
 	{
@@ -1079,6 +1098,10 @@ void CDockManager::onFocusedDockAreaViewToggled(bool Open)
 //===========================================================================
 void CDockManager::notifyWidgetOrAreaRelocation(QWidget* DroppedWidget)
 {
+	if (isRestoringState())
+	{
+		return;
+	}
 	std::cout << "\n\nCDockManager::notifyWidgetDrop" << std::endl;
 	CDockWidget* DockWidget = qobject_cast<CDockWidget*>(DroppedWidget);
 	if (DockWidget)
@@ -1104,7 +1127,7 @@ void CDockManager::notifyWidgetOrAreaRelocation(QWidget* DroppedWidget)
 void CDockManager::notifyFloatingWidgetDrop(CFloatingDockContainer* FloatingWidget)
 {
 	std::cout << "\n\nCDockManager::notifyFloatingWidgetDrop" << std::endl;
-	if (!FloatingWidget)
+	if (!FloatingWidget || isRestoringState())
 	{
 		return;
 	}

src/DockManager.h

@@ -517,6 +517,13 @@ signals:
      * docking system but it is not deleted yet.
      */
     void dockWidgetRemoved(CDockWidget* DockWidget);
+
+    /**
+     * This signal is emitted if the focused dock widget changed.
+     * Both old and now can be nullptr.
+     * The focused dock widget is the one that is highlighted in the GUI
+     */
+    void focusedDockWidgetChanged(CDockWidget* old, CDockWidget* now);
 }; // class DockManager
 } // namespace ads
 //-----------------------------------------------------------------------------

src/DockWidgetTab.cpp

@@ -466,7 +466,31 @@ void CDockWidgetTab::setActiveTab(bool active)
 	bool AllTabsHaveCloseButton = d->testConfigFlag(CDockManager::AllTabsHaveCloseButton);
 	bool TabHasCloseButton = (ActiveTabHasCloseButton && active) | AllTabsHaveCloseButton;
 	d->CloseButton->setVisible(DockWidgetClosable && TabHasCloseButton);
+
+	/*if (d->IsActiveTab == active)
+	{
+		return;
+	}*/
+
+	if (CDockManager::configFlags().testFlag(CDockManager::FocusStyling) && !d->DockWidget->dockManager()->isRestoringState())
+	{
+		bool UpdateFocusStyle = false;
+		if (active && !hasFocus())
+		{
+			setFocus(Qt::OtherFocusReason);
+			UpdateFocusStyle = true;
+		}
+
 		if (d->IsActiveTab == active)
+		{
+			if (UpdateFocusStyle)
+			{
+				updateStyle();
+			}
+			return;
+		}
+	}
+	else if (d->IsActiveTab == active)
 	{
 		return;
 	}