dpopupwindowhandle_p.h

// SPDX-FileCopyrightText: 2022 - 2026 UnionTech Software Technology Co., Ltd.
//
// SPDX-License-Identifier: LGPL-3.0-or-later
 
#pragma once
 
#include <dtkdeclarative_global.h>
 
#include <QtQml>
 
#include "dqmlglobalobject_p.h"
 
#include <private/qquickitemchangelistener_p.h>
 
QT_BEGIN_NAMESPACE
class QQuickWindow;
class QQuickItem;
QT_END_NAMESPACE
DQUICK_BEGIN_NAMESPACE
 
class DQuickWindowAttached;
 
class DPopupWindowHandle : public QObject, public QQuickItemChangeListener
{
    Q_OBJECT
    
    QML_UNCREATABLE("PopupHandle Attached.")
    QML_NAMED_ELEMENT(PopupHandle)
    QML_ATTACHED(DQuickWindowAttached)
    
public:
    explicit DPopupWindowHandle(QObject *popup);
    ~DPopupWindowHandle() override;
 
    static DQuickWindowAttached *qmlAttachedProperties(QObject *object);
 
    DQuickWindowAttached *windowAttached() const;
 
protected:
    bool eventFilter(QObject *watched, QEvent *event) override;
 
    // QQuickItemChangeListener
    void itemGeometryChanged(QQuickItem *item,
                             QQuickGeometryChange change,
                             const QRectF &oldGeometry) override;
 
    void itemVisibilityChanged(QQuickItem *item) override;
 
    void itemParentChanged(QQuickItem *item, QQuickItem *oldParent) override;
 
private Q_SLOTS:
    void updateEnabled();
    void onWindowChanged(QQuickWindow *window);
    void onPopupVisibleChanged();
 
private:
    QQuickWindow *popupWindow() const;
    QQuickItem *popupItem() const;
    void popupItemReparented();
 
    bool isEnabled() const;
    void adjustPopupPosition();
    void requestPopupFocus();
    void restoreParentFocus();
    
private:
    QObject *m_popup = nullptr;
 
    bool m_enabled = false;
    DQuickWindowAttached *m_attached = nullptr;
    QPointer<QQuickWindow> m_parentWindow = nullptr;
    QPointer<QQuickWindow> m_popupWin = nullptr;
    QPointer<QQuickItem> m_trackedItem = nullptr;
    QPointer<QQuickItem> m_restoreFocusItem = nullptr;
    QPointer<QQuickItem> m_focusOwner = nullptr;
    bool m_popupFocusRequested = false;
};
 
DQUICK_END_NAMESPACE
 
QML_DECLARE_TYPEINFO(DTK_QUICK_NAMESPACE::DPopupWindowHandle, QML_HAS_ATTACHED_PROPERTIES)