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// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef QWASMWINDOW_H
#define QWASMWINDOW_H
#include "qwasmintegration.h"
#include <qpa/qplatformwindow.h>
#include <qpa/qplatformwindow_p.h>
#include <emscripten/html5.h>
#include "qwasmbackingstore.h"
#include "qwasmscreen.h"
#include "qwasmcompositor.h"
#include "qwasmwindownonclientarea.h"
#include "qwasmwindowstack.h"
#include "qwasmwindowtreenode.h"
#include <QtCore/private/qstdweb_p.h>
#include "QtGui/qopenglcontext.h"
#include <QtOpenGL/qopengltextureblitter.h>
#include <emscripten/val.h>
#include <memory>
QT_BEGIN_NAMESPACE
namespace qstdweb {
class EventCallback;
}
class ClientArea;
struct KeyEvent;
struct PointerEvent;
class QWasmDeadKeySupport;
struct WheelEvent;
class QWasmWindow final : public QPlatformWindow,
public QWasmWindowTreeNode,
public QNativeInterface::Private::QWasmWindow
{
public:
QWasmWindow(QWindow *w, QWasmDeadKeySupport *deadKeySupport, QWasmCompositor *compositor,
QWasmBackingStore *backingStore);
~QWasmWindow() final;
static QWasmWindow *fromWindow(QWindow *window);
QSurfaceFormat format() const override;
void paint();
void setZOrder(int order);
void setWindowCursor(QByteArray cssCursorName);
void onActivationChanged(bool active);
bool isVisible() const;
void onNonClientAreaInteraction();
void onRestoreClicked();
void onMaximizeClicked();
void onToggleMaximized();
void onCloseClicked();
bool onNonClientEvent(const PointerEvent &event);
// QPlatformWindow:
void initialize() override;
void setGeometry(const QRect &) override;
void setVisible(bool visible) override;
QMargins frameMargins() const override;
WId winId() const override;
void propagateSizeHints() override;
void setOpacity(qreal level) override;
void raise() override;
void lower() override;
QRect normalGeometry() const override;
qreal devicePixelRatio() const override;
void requestUpdate() override;
void requestActivateWindow() override;
void setWindowFlags(Qt::WindowFlags flags) override;
void setWindowState(Qt::WindowStates state) override;
void setWindowTitle(const QString &title) override;
void setWindowIcon(const QIcon &icon) override;
bool setKeyboardGrabEnabled(bool) override { return false; }
bool setMouseGrabEnabled(bool grab) final;
bool windowEvent(QEvent *event) final;
void setMask(const QRegion ®ion) final;
void setParent(const QPlatformWindow *window) final;
QWasmScreen *platformScreen() const;
void setBackingStore(QWasmBackingStore *store) { m_backingStore = store; }
QWasmBackingStore *backingStore() const { return m_backingStore; }
QWindow *window() const { return m_window; }
std::string canvasSelector() const;
emscripten::val context2d() const { return m_context2d; }
emscripten::val a11yContainer() const { return m_a11yContainer; }
emscripten::val inputHandlerElement() const { return m_windowContents; }
// QNativeInterface::Private::QWasmWindow
emscripten::val document() const override { return m_document; }
emscripten::val clientArea() const override { return m_qtWindow; }
// QWasmWindowTreeNode:
emscripten::val containerElement() final;
QWasmWindowTreeNode *parentNode() final;
private:
friend class QWasmScreen;
static constexpr auto defaultWindowSize = 160;
// QWasmWindowTreeNode:
QWasmWindow *asWasmWindow() final;
void onParentChanged(QWasmWindowTreeNode *previous, QWasmWindowTreeNode *current,
QWasmWindowStack::PositionPreference positionPreference) final;
void invalidate();
bool hasFrame() const;
bool hasTitleBar() const;
bool hasBorder() const;
bool hasShadow() const;
bool hasMaximizeButton() const;
void applyWindowState();
void commitParent(QWasmWindowTreeNode *parent);
bool processKey(const KeyEvent &event);
bool processPointer(const PointerEvent &event);
bool processWheel(const WheelEvent &event);
QWindow *m_window = nullptr;
QWasmCompositor *m_compositor = nullptr;
QWasmBackingStore *m_backingStore = nullptr;
QWasmDeadKeySupport *m_deadKeySupport;
QRect m_normalGeometry {0, 0, 0 ,0};
emscripten::val m_document;
emscripten::val m_qtWindow;
emscripten::val m_windowContents;
emscripten::val m_canvasContainer;
emscripten::val m_a11yContainer;
emscripten::val m_canvas;
emscripten::val m_context2d = emscripten::val::undefined();
std::unique_ptr<NonClientArea> m_nonClientArea;
std::unique_ptr<ClientArea> m_clientArea;
QWasmWindowTreeNode *m_commitedParent = nullptr;
std::unique_ptr<qstdweb::EventCallback> m_keyDownCallback;
std::unique_ptr<qstdweb::EventCallback> m_keyUpCallback;
std::unique_ptr<qstdweb::EventCallback> m_pointerLeaveCallback;
std::unique_ptr<qstdweb::EventCallback> m_pointerEnterCallback;
std::unique_ptr<qstdweb::EventCallback> m_dropCallback;
std::unique_ptr<qstdweb::EventCallback> m_wheelEventCallback;
Qt::WindowStates m_state = Qt::WindowNoState;
Qt::WindowStates m_previousWindowState = Qt::WindowNoState;
Qt::WindowFlags m_flags = Qt::Widget;
QPoint m_lastPointerMovePoint;
WId m_winId = 0;
bool m_wantCapture = false;
bool m_hasTitle = false;
bool m_needsCompositor = false;
long m_requestAnimationFrameId = -1;
friend class QWasmCompositor;
friend class QWasmEventTranslator;
bool windowIsPopupType(Qt::WindowFlags flags) const;
};
QT_END_NAMESPACE
#endif // QWASMWINDOW_H
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