Properly implemented drag and drop of auto hide tabs

src/AutoHideDockContainer.cpp

@@ -411,6 +411,7 @@ void CAutoHideDockContainer::moveContentsToParent()
 //============================================================================
 void CAutoHideDockContainer::cleanupAndDelete()
 {
+	std::cout << "CAutoHideDockContainer::cleanupAndDelete()" << std::endl;
 	const auto dockWidget = d->DockWidget;
 	if (dockWidget)
 	{
@@ -690,5 +691,26 @@ void CAutoHideDockContainer::resetToInitialDockWidgetSize()
 	}
 }
 
+
+//============================================================================
+void CAutoHideDockContainer::moveToNewSideBarLocation(SideBarLocation NewSideBarLocation)
+{
+	if (NewSideBarLocation == sideBarLocation())
+	{
+		return;
+	}
+
+	auto OldOrientation = orientation();
+	auto SideBar = dockContainer()->autoHideSideBar(NewSideBarLocation);
+	SideBar->addAutoHideWidget(this);
+	// If we move a horizontal auto hide container to a vertical position
+	// then we resize it to the orginal dock widget size, to avoid
+	// an extremely streched dock widget after insertion
+	if (SideBar->orientation() != OldOrientation)
+	{
+		resetToInitialDockWidgetSize();
+	}
+}
+
 }
 

src/AutoHideDockContainer.h

@@ -190,6 +190,12 @@ public:
 	 * side bar.
 	 */
 	Qt::Orientation orientation() const;
+
+	/**
+	 * Removes the AutoHide container from the current side bar and adds
+	 * it to the new side bar given in SideBarLocation
+	 */
+	void moveToNewSideBarLocation(SideBarLocation SideBarLocation);
 };
 } // namespace ads
 

src/DockAreaWidget.cpp

@@ -1323,11 +1323,18 @@ void CDockAreaWidget::setAutoHide(bool Enable, SideBarLocation Location)
 	{
 		if (isAutoHide())
 		{
-			autoHideDockContainer()->moveContentsToParent();
+			d->AutoHideDockContainer->moveContentsToParent();
 		}
 		return;
 	}
 
+	// If this is already an auto hide container, then move it to new location
+	if (isAutoHide())
+	{
+		d->AutoHideDockContainer->moveToNewSideBarLocation(Location);
+		return;
+	}
+
 	auto area = (SideBarNone == Location) ? calculateSideTabBarArea() : Location;
 	for (const auto DockWidget : openedDockWidgets())
 	{

src/DockAreaWidget.h

@@ -221,7 +221,6 @@ public:
 	 */
 	bool isAutoHide() const;
 
-
 	/**
 	 * Sets the current auto hide dock container
 	 */

src/DockContainerWidget.cpp

@@ -776,18 +776,34 @@ void DockContainerWidgetPrivate::moveToAutoHideSideBar(QWidget* Widget, DockWidg
 
 	if (DroppedDockWidget)
 	{
-		_this->createAndSetupAutoHideContainer(SideBarLocation, DroppedDockWidget);
+		if (_this == DroppedDockWidget->dockContainer())
+		{
+			DroppedDockWidget->setAutoHide(true, SideBarLocation);
+		}
+		else
+		{
+			_this->createAndSetupAutoHideContainer(SideBarLocation, DroppedDockWidget);
+		}
 	}
 	else
 	{
-		for (const auto DockWidget : DroppedDockArea->openedDockWidgets())
+		if (_this == DroppedDockArea->dockContainer())
 		{
-			if (!DockWidget->features().testFlag(CDockWidget::DockWidgetPinnable))
+			DroppedDockArea->setAutoHide(true, SideBarLocation);
+		}
+		else
+		{
+			for (const auto DockWidget : DroppedDockArea->openedDockWidgets())
 			{
-				continue;
-			}
+				if (!DockWidget->features().testFlag(
+				    CDockWidget::DockWidgetPinnable))
+				{
+					continue;
+				}
 
-			_this->createAndSetupAutoHideContainer(SideBarLocation, DockWidget);
+				_this->createAndSetupAutoHideContainer(SideBarLocation,
+				    DockWidget);
+			}
 		}
 	}
 }

src/DockWidget.cpp

@@ -1219,23 +1219,14 @@ void CDockWidget::setAutoHide(bool Enable, SideBarLocation Location)
 	}
 
 	auto DockArea = dockAreaWidget();
+
 	if (!Enable)
 	{
 		DockArea->setAutoHide(false);
 	}
 	else if (isAutoHide())
 	{
-		auto AutoHideContainer = autoHideDockContainer();
-		auto OldOrientation = AutoHideContainer->orientation();
-		auto SideBar = dockContainer()->autoHideSideBar(Location);
-		SideBar->addAutoHideWidget(AutoHideContainer);
-		// If we move a horizontal auto hide container to a vertical position
-		// then we resize it to the orginal dock widget size, to avoid
-		// an extremely streched dock widget after insertion
-		if (SideBar->orientation() != OldOrientation)
-		{
-			AutoHideContainer->resetToInitialDockWidgetSize();
-		}
+		autoHideDockContainer()->moveToNewSideBarLocation(Location);
 	}
 	else
 	{

src/FloatingDragPreview.cpp

@@ -22,6 +22,8 @@
 #include "DockManager.h"
 #include "DockContainerWidget.h"
 #include "DockOverlay.h"
+#include "AutoHideDockContainer.h"
+#include "ads_globals.h"
 
 namespace ads
 {
@@ -373,7 +375,7 @@ void CFloatingDragPreview::finishDragging()
 	// state if they are dragged into a floating window
 	if (ValidDropArea || d->isContentFloatable())
 	{
-		cleanupAutoHideContainerWidget();
+		cleanupAutoHideContainerWidget(ContainerDropArea);
 	}
 
 	if (!d->DropContainer)
@@ -408,18 +410,29 @@ void CFloatingDragPreview::finishDragging()
 
 
 //============================================================================
-void CFloatingDragPreview::cleanupAutoHideContainerWidget()
+void CFloatingDragPreview::cleanupAutoHideContainerWidget(DockWidgetArea ContainerDropArea)
 {
 	auto DroppedDockWidget = qobject_cast<CDockWidget*>(d->Content);
 	auto DroppedArea = qobject_cast<CDockAreaWidget*>(d->Content);
-	if (DroppedDockWidget && DroppedDockWidget->autoHideDockContainer())
+	auto AutoHideContainer = DroppedDockWidget
+		? DroppedDockWidget->autoHideDockContainer()
+		: DroppedArea->autoHideDockContainer();
+
+	if (!AutoHideContainer)
 	{
-		DroppedDockWidget->autoHideDockContainer()->cleanupAndDelete();
+		return;
 	}
-	if (DroppedArea && DroppedArea->autoHideDockContainer())
+
+	// If the dropped widget is already an auto hide widget and if it is moved
+	// to a new side bar location in the same container, then we do not need
+	// to cleanup
+	if (ads::internal::isSideBarArea(ContainerDropArea)
+	&& (d->DropContainer == AutoHideContainer->dockContainer()))
 	{
-		DroppedArea->autoHideDockContainer()->cleanupAndDelete();
+		return;
 	}
+
+	AutoHideContainer->cleanupAndDelete();
 }
 
 

src/FloatingDragPreview.h

@@ -95,7 +95,7 @@ public: // implements IFloatingWidget -----------------------------------------
 	/**
 	 * Cleanup auto hide container if the dragged widget has one
 	 */
-	void cleanupAutoHideContainerWidget();
+	void cleanupAutoHideContainerWidget(DockWidgetArea ContainerDropArea);
 
 Q_SIGNALS:
 	/**