Added mising DockFocusController files

src/DockFocusController.cpp

@@ -0,0 +1,320 @@
+//============================================================================
+/// \file   DockFocusController.cpp
+/// \author Uwe Kindler
+/// \date   05.06.2020
+/// \brief  Implementation of CDockFocusController class
+//============================================================================
+
+//============================================================================
+//                                   INCLUDES
+//============================================================================
+#include "DockFocusController.h"
+
+#include <algorithm>
+#include <iostream>
+
+#include <QPointer>
+#include <QApplication>
+
+#include "DockWidget.h"
+#include "DockAreaWidget.h"
+#include "DockWidgetTab.h"
+#include "DockContainerWidget.h"
+#include "FloatingDockContainer.h"
+#include "DockManager.h"
+#include "DockAreaTitleBar.h"
+
+namespace ads
+{
+/**
+ * Private data class of CDockFocusController class (pimpl)
+ */
+struct DockFocusControllerPrivate
+{
+	CDockFocusController *_this;
+	QPointer<CDockWidget> FocusedDockWidget = nullptr;
+	QPointer<CDockAreaWidget> FocusedArea = nullptr;
+	CDockManager* DockManager;
+
+	/**
+	 * Private data constructor
+	 */
+	DockFocusControllerPrivate(CDockFocusController *_public);
+
+	/**
+	 * This function updates the focus style of the given dock widget and
+	 * the dock area that it belongs to
+	 */
+	void updateDockWidgetFocus(CDockWidget* DockWidget);
+};
+// struct DockFocusControllerPrivate
+
+
+//===========================================================================
+static void updateDockWidgetFocusStyle(CDockWidget* DockWidget, bool Focused)
+{
+	DockWidget->setProperty("focused", Focused);
+	DockWidget->tabWidget()->setProperty("focused", Focused);
+	DockWidget->tabWidget()->updateStyle();
+	internal::repolishStyle(DockWidget);
+}
+
+
+//===========================================================================
+static void updateDockAreaFocusStyle(CDockAreaWidget* DockArea, bool Focused)
+{
+	DockArea->setProperty("focused", Focused);
+	internal::repolishStyle(DockArea);
+	internal::repolishStyle(DockArea->titleBar());
+}
+
+
+//===========================================================================
+#ifdef Q_OS_LINUX
+static void updateFloatingWidgetFocusStyle(CFloatingDockContainer* FloatingWidget, bool Focused)
+{
+    auto TitleBar = qobject_cast<CFloatingWidgetTitleBar*>(FloatingWidget->titleBarWidget());
+    if (!TitleBar)
+    {
+        return;
+    }
+    TitleBar->setProperty("focused", Focused);
+    TitleBar->updateStyle();
+}
+#endif
+
+
+//============================================================================
+DockFocusControllerPrivate::DockFocusControllerPrivate(
+    CDockFocusController *_public) :
+	_this(_public)
+{
+
+}
+
+
+//============================================================================
+void DockFocusControllerPrivate::updateDockWidgetFocus(CDockWidget* DockWidget)
+{
+	CDockAreaWidget* NewFocusedDockArea = nullptr;
+	if (FocusedDockWidget)
+	{
+		updateDockWidgetFocusStyle(FocusedDockWidget, false);
+	}
+
+	CDockWidget* old = FocusedDockWidget;
+	if (DockWidget != FocusedDockWidget)
+	{
+		std::cout << "!!!!!!!!!!!! focusedDockWidgetChanged " << (FocusedDockWidget ? FocusedDockWidget->objectName().toStdString() : "-")
+			<< " -> " << (DockWidget ? DockWidget->objectName().toStdString() : "-") << std::endl;
+	}
+	FocusedDockWidget = DockWidget;
+	updateDockWidgetFocusStyle(FocusedDockWidget, true);
+	NewFocusedDockArea = FocusedDockWidget->dockAreaWidget();
+	if (NewFocusedDockArea && (FocusedArea != NewFocusedDockArea))
+	{
+		if (FocusedArea)
+		{
+			std::cout << "FocusedArea" << std::endl;
+			QObject::disconnect(FocusedArea, SIGNAL(viewToggled(bool)), _this, SLOT(onFocusedDockAreaViewToggled(bool)));
+			updateDockAreaFocusStyle(FocusedArea, false);
+		}
+
+		FocusedArea = NewFocusedDockArea;
+		updateDockAreaFocusStyle(FocusedArea, true);
+		QObject::connect(FocusedArea, SIGNAL(viewToggled(bool)), _this, SLOT(onFocusedDockAreaViewToggled(bool)));
+	}
+
+
+    auto NewFloatingWidget = FocusedDockWidget->dockContainer()->floatingWidget();
+    if (NewFloatingWidget)
+    {
+    	std::cout << "NewFloatingWidget->setProperty(FocusedDockWidget)" << std::endl;
+    	NewFloatingWidget->setProperty("FocusedDockWidget", QVariant::fromValue(DockWidget));
+    }
+
+
+#ifdef Q_OS_LINUX
+	// This code is required for styling the floating widget titlebar for linux
+	// depending on the current focus state
+    if (FloatingWidget == NewFloatingWidget)
+    {
+        return;
+    }
+
+    if (FloatingWidget)
+    {
+        updateFloatingWidgetFocusStyle(FloatingWidget, false);
+    }
+    FloatingWidget = NewFloatingWidget;
+
+    if (FloatingWidget)
+    {
+        updateFloatingWidgetFocusStyle(FloatingWidget, true);
+    }
+#endif
+
+    if (old != DockWidget)
+    {
+    	emit DockManager->focusedDockWidgetChanged(old, DockWidget);
+    }
+}
+
+
+
+//============================================================================
+CDockFocusController::CDockFocusController(CDockManager* DockManager) :
+	Super(DockManager),
+	d(new DockFocusControllerPrivate(this))
+{
+	d->DockManager = DockManager;
+	connect(QApplication::instance(), SIGNAL(focusChanged(QWidget*, QWidget*)),
+			this, SLOT(onApplicationFocusChanged(QWidget*, QWidget*)));
+	connect(d->DockManager, SIGNAL(stateRestored()), SLOT(onStateRestored()));
+}
+
+//============================================================================
+CDockFocusController::~CDockFocusController()
+{
+	delete d;
+}
+
+
+//===========================================================================
+void CDockFocusController::onApplicationFocusChanged(QWidget* focusedOld, QWidget* focusedNow)
+{
+	if (d->DockManager->isRestoringState())
+	{
+		return;
+	}
+	std::cout << "CDockManager::onFocusChanged" << std::endl;
+    std::cout << "focusedNow " << focusedNow << std::endl;
+	Q_UNUSED(focusedOld)
+	if (!focusedNow)
+	{
+		return;
+	}
+
+	CDockWidget* DockWidget = nullptr;
+	auto DockWidgetTab = qobject_cast<CDockWidgetTab*>(focusedNow);
+	std::cout << "FocuseNow " << focusedNow->metaObject()->className() << std::endl;
+	if (DockWidgetTab)
+	{
+		DockWidget = DockWidgetTab->dockWidget();
+	}
+	else
+	{
+		DockWidget = internal::findParent<CDockWidget*>(focusedNow);
+	}
+
+#ifdef Q_OS_LINUX
+    if (!DockWidget)
+	{
+		return;
+	}
+#else
+    if (!DockWidget || DockWidget->tabWidget()->isHidden())
+	{
+    	std::cout << "!DockWidget || !DockWidget->tabWidget()->isVisible() " << (DockWidget ? DockWidget->objectName().toStdString() : "0") << std::endl;
+		std::cout << "DockWidget->tabWidget()->isHidden() " << (DockWidget ? DockWidget->tabWidget()->isHidden() : false) << std::endl;
+    	return;
+	}
+#endif
+
+	std::cout << "CDockManager::onFocusChanged " << DockWidget->tabWidget()->text().toStdString() << std::endl;
+	d->updateDockWidgetFocus(DockWidget);
+}
+
+
+//===========================================================================
+void CDockFocusController::onFocusedDockAreaViewToggled(bool Open)
+{
+	if (d->DockManager->isRestoringState())
+	{
+		return;
+	}
+
+	CDockAreaWidget* DockArea = qobject_cast<CDockAreaWidget*>(sender());
+	if (!DockArea || Open)
+	{
+		return;
+	}
+	auto Container = DockArea->dockContainer();
+	auto OpenedDockAreas = Container->openedDockAreas();
+	if (OpenedDockAreas.isEmpty())
+	{
+		return;
+	}
+
+	CDockManager::setWidgetFocus(OpenedDockAreas[0]->currentDockWidget()->tabWidget());
+}
+
+
+//===========================================================================
+void CDockFocusController::notifyWidgetOrAreaRelocation(QWidget* DroppedWidget)
+{
+	if (d->DockManager->isRestoringState())
+	{
+		return;
+	}
+	std::cout << "\n\nCDockManager::notifyWidgetDrop" << std::endl;
+	CDockWidget* DockWidget = qobject_cast<CDockWidget*>(DroppedWidget);
+	if (DockWidget)
+	{
+		std::cout << "CDockManager::setWidgetFocus " << DockWidget->objectName().toStdString() << std::endl;
+		CDockManager::setWidgetFocus(DockWidget->tabWidget());
+		return;
+	}
+
+	CDockAreaWidget* DockArea = qobject_cast<CDockAreaWidget*>(DroppedWidget);
+	if (!DockArea)
+	{
+		return;
+	}
+
+	DockWidget = DockArea->currentDockWidget();
+	CDockManager::setWidgetFocus(DockWidget->tabWidget());
+	std::cout << "\n\n" << std::endl;
+}
+
+
+//===========================================================================
+void CDockFocusController::notifyFloatingWidgetDrop(CFloatingDockContainer* FloatingWidget)
+{
+	std::cout << "\n\nCDockManager::notifyFloatingWidgetDrop" << std::endl;
+	if (!FloatingWidget || d->DockManager->isRestoringState())
+	{
+		return;
+	}
+
+	auto vDockWidget = FloatingWidget->property("FocusedDockWidget");
+	if (!vDockWidget.isValid())
+	{
+		return;
+	}
+	std::cout << "vDockWidget.isValid()" << std::endl;
+	auto DockWidget = vDockWidget.value<CDockWidget*>();
+	if (DockWidget)
+	{
+		std::cout << "Dropped focus dock widget " << DockWidget->objectName().toStdString() << std::endl;
+		DockWidget->dockAreaWidget()->setCurrentDockWidget(DockWidget);
+		CDockManager::setWidgetFocus(DockWidget->tabWidget());
+	}
+	std::cout << "\n\n" << std::endl;
+}
+
+
+//==========================================================================
+void CDockFocusController::onStateRestored()
+{
+	std::cout << "CDockFocusController::onStateRestored()" << std::endl;
+	if (d->FocusedDockWidget)
+	{
+		updateDockWidgetFocusStyle(d->FocusedDockWidget, false);
+	}
+}
+
+} // namespace ads
+
+//---------------------------------------------------------------------------
+// EOF DockFocusController.cpp

src/DockFocusController.h

@@ -0,0 +1,83 @@
+#ifndef DockFocusControllerH
+#define DockFocusControllerH
+//============================================================================
+/// \file   DockFocusController.h
+/// \author Uwe Kindler
+/// \date   05.06.2020
+/// \brief  Declaration of CDockFocusController class
+//============================================================================
+
+//============================================================================
+//                                   INCLUDES
+//============================================================================
+#include <QObject>
+#include "ads_globals.h"
+#include "DockManager.h"
+
+namespace ads
+{
+struct DockFocusControllerPrivate;
+class CDockManager;
+class CFloatingDockContainer;
+
+/**
+ * Manages focus styling of dock widgets and handling of focus changes
+ */
+class ADS_EXPORT CDockFocusController : public QObject
+{
+	Q_OBJECT
+private:
+	DockFocusControllerPrivate* d; ///< private data (pimpl)
+	friend class DockFocusControllerPrivate;
+
+private slots:
+	void onApplicationFocusChanged(QWidget *old, QWidget *now);
+	void onFocusedDockAreaViewToggled(bool Open);
+	void onStateRestored();
+
+public:
+	using Super = QObject;
+	/**
+	 * Default Constructor
+	 */
+	CDockFocusController(CDockManager* DockManager);
+
+	/**
+	 * Virtual Destructor
+	 */
+	virtual ~CDockFocusController();
+
+	/**
+	 * Helper function to set focus depending on the configuration of the
+	 * FocusStyling flag
+	 */
+	template <class QWidgetPtr>
+	static void setWidgetFocus(QWidgetPtr widget)
+	{
+		if (!CDockManager::configFlags().testFlag(CDockManager::FocusStyling))
+		{
+			return;
+		}
+
+		widget->setFocus(Qt::OtherFocusReason);
+	}
+
+	/**
+	 * A container needs to call this function if a widget has been dropped
+	 * into it
+	 */
+	void notifyWidgetOrAreaRelocation(QWidget* RelocatedWidget);
+
+	/**
+	 * This function is called, if a floating widget has been dropped into
+	 * an new position.
+	 * When this function is called, all dock widgets of the FloatingWidget
+	 * are already inserted into its new position
+	 */
+	void notifyFloatingWidgetDrop(CFloatingDockContainer* FloatingWidget);
+}; // class DockFocusController
+}
+ // namespace ads
+//-----------------------------------------------------------------------------
+#endif // DockFocusControllerH
+