890784ba5a
When clicking on a TitleBar the focus will be redirected to either: - Last widget that had focus inside the scope - To the DockWidget. Implies the user setting a guest widget that accepts focus Fixes: #56
131 lines
3.0 KiB
C++
131 lines
3.0 KiB
C++
/*
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This file is part of KDDockWidgets.
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SPDX-FileCopyrightText: 2019-2020 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
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Author: Sérgio Martins <sergio.martins@kdab.com>
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SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only
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Contact KDAB at <info@kdab.com> for commercial licensing options.
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*/
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/**
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* @file
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* @brief FocusScope
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*
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* @author Sérgio Martins \<sergio.martins@kdab.com\>
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*/
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#include "FocusScope.h"
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#include "TitleBar_p.h"
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#include <QObject>
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#include <QApplication>
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#include <QPointer>
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using namespace KDDockWidgets;
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// Our Private inherits from QObject since FocusScope can't (Since Frame is already QObject)
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class FocusScope::Private : public QObject
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{
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public:
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Private(FocusScope *qq, QWidgetAdapter *thisWidget)
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: q(qq)
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, m_thisWidget(thisWidget)
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{
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connect(qApp, &QGuiApplication::focusObjectChanged,
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this, &Private::onFocusObjectChanged);
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onFocusObjectChanged(qApp->focusObject());
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m_inCtor = false;
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}
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void setIsFocused(bool);
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void onFocusObjectChanged(QObject *);
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bool isInFocusScope(WidgetType *) const;
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FocusScope *const q;
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QWidgetAdapter *const m_thisWidget;
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bool m_isFocused = false;
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bool m_inCtor = true;
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QPointer<WidgetType> m_lastFocusedInScope;
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};
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FocusScope::FocusScope(QWidgetAdapter *thisWidget)
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: d(new Private(this, thisWidget))
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{
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}
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FocusScope::~FocusScope()
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{
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delete d;
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}
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bool FocusScope::isFocused() const
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{
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return d->m_isFocused;
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}
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WidgetType *FocusScope::focusedWidget() const
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{
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return d->m_lastFocusedInScope;
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}
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void FocusScope::focus(Qt::FocusReason reason)
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{
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if (d->m_lastFocusedInScope) {
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d->m_lastFocusedInScope->setFocus(reason);
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} else {
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if (auto frame = qobject_cast<Frame*>(d->m_thisWidget)) {
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if (DockWidgetBase *dw = frame->currentDockWidget()) {
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if (auto guest = dw->widget()) {
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if (guest->focusPolicy() != Qt::NoFocus)
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guest->setFocus(reason);
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}
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}
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} else {
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// Not a use case right now
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d->m_thisWidget->setFocus(reason);
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}
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}
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}
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void FocusScope::Private::setIsFocused(bool is)
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{
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if (is != m_isFocused) {
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m_isFocused = is;
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if (!m_inCtor) // Hack so we don't call pure-virtual
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Q_EMIT q->isFocusedChanged();
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}
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}
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void FocusScope::Private::onFocusObjectChanged(QObject *obj)
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{
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auto widget = qobject_cast<WidgetType*>(obj);
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if (!widget)
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return;
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const bool is = isInFocusScope(widget);
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if (is && m_lastFocusedInScope != widget && !qobject_cast<TitleBar*>(obj)) {
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m_lastFocusedInScope = widget;
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Q_EMIT q->focusedWidgetChanged();
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}
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setIsFocused(is);
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}
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bool FocusScope::Private::isInFocusScope(WidgetType *widget) const
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{
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WidgetType *p = widget;
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while (p) {
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if (p == m_thisWidget)
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return true;
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p = KDDockWidgets::Private::parentWidget(p);
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}
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return false;
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}
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