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// Copyright (C) 2020 Uwe Kindler
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-2.1-or-later OR GPL-3.0-or-later
#include "dockfocuscontroller.h"
#include "dockareawidget.h"
#include "dockareatitlebar.h"
#include "dockcontainerwidget.h"
#include "dockmanager.h"
#include "dockwidget.h"
#include "dockwidgettab.h"
#include "floatingdockcontainer.h"
#ifdef Q_OS_LINUX
#include "linux/floatingwidgettitlebar.h"
#endif
#include <QApplication>
#include <QPointer>
#include <algorithm>
#include <iostream>
namespace ADS
{
/**
* Private data class of CDockFocusController class (pimpl)
*/
class DockFocusControllerPrivate
{
public:
DockFocusController *q;
QPointer<DockWidget> m_focusedDockWidget = nullptr;
QPointer<DockAreaWidget> m_focusedArea = nullptr;
#ifdef Q_OS_LINUX
QPointer<FloatingDockContainer> m_floatingWidget = nullptr;
#endif
DockManager *m_dockManager = nullptr;
/**
* Private data constructor
*/
DockFocusControllerPrivate(DockFocusController *parent);
/**
* This function updates the focus style of the given dock widget and
* the dock area that it belongs to
*/
void updateDockWidgetFocus(DockWidget *dockWidget);
}; // class DockFocusControllerPrivate
static void updateDockWidgetFocusStyle(DockWidget *dockWidget, bool focused)
{
dockWidget->setProperty("focused", focused);
dockWidget->tabWidget()->setProperty("focused", focused);
dockWidget->tabWidget()->updateStyle();
internal::repolishStyle(dockWidget);
}
static void updateDockAreaFocusStyle(DockAreaWidget *dockArea, bool focused)
{
dockArea->setProperty("focused", focused);
internal::repolishStyle(dockArea);
internal::repolishStyle(dockArea->titleBar());
}
#ifdef Q_OS_LINUX
static void updateFloatingWidgetFocusStyle(FloatingDockContainer *floatingWidget, bool focused)
{
auto titleBar = qobject_cast<FloatingWidgetTitleBar *>(floatingWidget->titleBarWidget());
if (!titleBar)
return;
titleBar->setProperty("focused", focused);
titleBar->updateStyle();
}
#endif
DockFocusControllerPrivate::DockFocusControllerPrivate(DockFocusController *parent)
: q(parent)
{}
void DockFocusControllerPrivate::updateDockWidgetFocus(DockWidget *dockWidget)
{
DockAreaWidget *newFocusedDockArea = nullptr;
if (m_focusedDockWidget)
updateDockWidgetFocusStyle(m_focusedDockWidget, false);
DockWidget *old = m_focusedDockWidget;
m_focusedDockWidget = dockWidget;
updateDockWidgetFocusStyle(m_focusedDockWidget, true);
newFocusedDockArea = m_focusedDockWidget->dockAreaWidget();
if (newFocusedDockArea && (m_focusedArea != newFocusedDockArea))
{
if (m_focusedArea)
{
QObject::disconnect(m_focusedArea, &DockAreaWidget::viewToggled,
q, &DockFocusController::onFocusedDockAreaViewToggled);
updateDockAreaFocusStyle(m_focusedArea, false);
}
m_focusedArea = newFocusedDockArea;
updateDockAreaFocusStyle(m_focusedArea, true);
QObject::connect(m_focusedArea, &DockAreaWidget::viewToggled,
q, &DockFocusController::onFocusedDockAreaViewToggled);
}
auto dockContainer = m_focusedDockWidget->dockContainer();
FloatingDockContainer *newFloatingWidget = nullptr;
if (dockContainer)
newFloatingWidget = dockContainer->floatingWidget();
if (newFloatingWidget)
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 (m_floatingWidget == newFloatingWidget)
return;
if (m_floatingWidget)
updateFloatingWidgetFocusStyle(m_floatingWidget, false);
m_floatingWidget = newFloatingWidget;
if (m_floatingWidget)
updateFloatingWidgetFocusStyle(m_floatingWidget, true);
#endif
if (old != dockWidget)
emit m_dockManager->focusedDockWidgetChanged(old, dockWidget);
}
DockFocusController::DockFocusController(DockManager *dockManager)
: QObject(dockManager)
, d(new DockFocusControllerPrivate(this))
{
d->m_dockManager = dockManager;
connect(qApp, &QApplication::focusChanged,
this, &DockFocusController::onApplicationFocusChanged);
connect(d->m_dockManager, &DockManager::stateRestored,
this, &DockFocusController::onStateRestored);
}
DockFocusController::~DockFocusController()
{
delete d;
}
void DockFocusController::onApplicationFocusChanged(QWidget *focusedOld, QWidget *focusedNow)
{
Q_UNUSED(focusedOld);
if (d->m_dockManager->isRestoringState())
return;
if (!focusedNow)
return;
DockWidget *dockWidget = nullptr;
auto dockWidgetTab = qobject_cast<DockWidgetTab *>(focusedNow);
if (dockWidgetTab)
dockWidget = dockWidgetTab->dockWidget();
if (!dockWidget)
dockWidget = qobject_cast<DockWidget *>(focusedNow);
bool focusActual = dockWidget && dockWidget->widget();
if (!dockWidget)
dockWidget = internal::findParent<DockWidget *>(focusedNow);
#ifdef Q_OS_LINUX
if (!dockWidget)
return;
#else
if (!dockWidget || dockWidget->tabWidget()->isHidden())
return;
#endif
d->updateDockWidgetFocus(dockWidget);
if (focusActual) {
// Do this async to avoid issues when changing focus in middle of another focus handling
QMetaObject::invokeMethod(dockWidget->widget(), QOverload<>::of(&QWidget::setFocus),
Qt::QueuedConnection);
}
}
void DockFocusController::setDockWidgetFocused(DockWidget *focusedNow)
{
d->updateDockWidgetFocus(focusedNow);
}
void DockFocusController::onFocusedDockAreaViewToggled(bool open)
{
if (d->m_dockManager->isRestoringState() || !d->m_focusedArea || open)
return;
auto container = d->m_focusedArea->dockContainer();
auto openedDockAreas = container->openedDockAreas();
if (openedDockAreas.isEmpty())
return;
DockManager::setWidgetFocus(openedDockAreas[0]->currentDockWidget()->tabWidget());
}
void DockFocusController::notifyWidgetOrAreaRelocation(QWidget *droppedWidget)
{
if (d->m_dockManager->isRestoringState())
return;
DockWidget *dockWidget = qobject_cast<DockWidget *>(droppedWidget);
if (dockWidget)
{
DockManager::setWidgetFocus(dockWidget->tabWidget());
return;
}
DockAreaWidget* dockArea = qobject_cast<DockAreaWidget*>(droppedWidget);
if (!dockArea)
return;
dockWidget = dockArea->currentDockWidget();
DockManager::setWidgetFocus(dockWidget->tabWidget());
}
void DockFocusController::notifyFloatingWidgetDrop(FloatingDockContainer *floatingWidget)
{
if (!floatingWidget || d->m_dockManager->isRestoringState())
return;
auto vDockWidget = floatingWidget->property("FocusedDockWidget");
if (!vDockWidget.isValid())
return;
auto dockWidget = vDockWidget.value<DockWidget *>();
if (dockWidget) {
dockWidget->dockAreaWidget()->setCurrentDockWidget(dockWidget);
DockManager::setWidgetFocus(dockWidget->tabWidget());
}
}
void DockFocusController::onStateRestored()
{
if (d->m_focusedDockWidget)
updateDockWidgetFocusStyle(d->m_focusedDockWidget, false);
}
} // namespace ADS
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