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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef QWASMWINDOWTREENODE_H
#define QWASMWINDOWTREENODE_H
#include "qwasmwindowstack.h"
#include <QVariant>
namespace emscripten {
class val;
}
class QWasmWindow;
enum class QWasmWindowTreeNodeChangeType {
NodeInsertion,
NodeRemoval,
};
class QWasmWindowTreeNodeBase
{
protected:
static uint64_t s_nextActiveIndex;
};
template<class Window = QWasmWindow>
class QWasmWindowTreeNode : public QWasmWindowTreeNodeBase
{
public:
QWasmWindowTreeNode();
virtual ~QWasmWindowTreeNode();
virtual emscripten::val containerElement() = 0;
virtual QWasmWindowTreeNode *parentNode() = 0;
protected:
virtual void onParentChanged(QWasmWindowTreeNode *previous, QWasmWindowTreeNode *current,
typename QWasmWindowStack<Window>::PositionPreference positionPreference);
virtual Window *asWasmWindow();
virtual void onSubtreeChanged(QWasmWindowTreeNodeChangeType changeType,
QWasmWindowTreeNode *parent, Window *child);
virtual void setWindowZOrder(Window *window, int z);
void onPositionPreferenceChanged(typename QWasmWindowStack<Window>::PositionPreference positionPreference);
void setAsActiveNode();
void bringToTop();
void sendToBottom();
const QWasmWindowStack<Window> &childStack() const { return m_childStack; }
QWasmWindowStack<Window> &childStack() { return m_childStack; }
Window *activeChild() const { return m_activeChild; }
uint64_t getActiveIndex() const {
return m_activeIndex;
}
private:
void onTopWindowChanged();
void setActiveChildNode(Window *activeChild);
uint64_t m_activeIndex = 0;
QWasmWindowStack<Window> m_childStack;
Window *m_activeChild = nullptr;
};
#endif
#include "qwasmwindowtreenode.inc"
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