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#ifndef RENDER_WIDGET_HOST_VIEW_QT_DELEGATE_QUICK_H
#define RENDER_WIDGET_HOST_VIEW_QT_DELEGATE_QUICK_H

#include "render_widget_host_view_qt_delegate.h"

#include "qquickwebengineview_p.h"
#include "qquickwebengineview_p_p.h"
#include <QGuiApplication>
#include <QQuickPaintedItem>
#include <QQuickWindow>
#include <QVariant>
#include <QWindow>

template<typename ItemBaseT>
class RenderWidgetHostViewQtDelegateQuickBase : public ItemBaseT, public RenderWidgetHostViewQtDelegate
{
public:
    RenderWidgetHostViewQtDelegateQuickBase(RenderWidgetHostViewQtDelegateClient *client, QQuickItem *parent = 0)
        : ItemBaseT(parent)
        , m_client(client)
    {
        this->setFocus(true);
        this->setActiveFocusOnTab(true);
        this->setFlag(QQuickItem::ItemIsFocusScope);

        this->setAcceptedMouseButtons(Qt::AllButtons);
        this->setAcceptHoverEvents(true);
    }

    virtual void initAsChild(WebContentsAdapterClient* container) Q_DECL_OVERRIDE
    {
        QQuickWebEngineViewPrivate *viewPrivate = static_cast<QQuickWebEngineViewPrivate *>(container);
        this->setParentItem(viewPrivate->q_func());
        this->setSize(viewPrivate->q_func()->boundingRect().size());
    }

    virtual void initAsPopup(const QRect& rect) Q_DECL_OVERRIDE
    {
        this->setX(rect.x());
        this->setY(rect.y());
        this->setWidth(rect.width());
        this->setHeight(rect.height());
        this->setVisible(true);
    }

    virtual QRectF screenRect() const Q_DECL_OVERRIDE
    {
        QPointF pos = this->mapToScene(QPointF(0,0));
        return QRectF(pos.x(), pos.y(), this->width(), this->height());
    }

    virtual void setKeyboardFocus() Q_DECL_OVERRIDE
    {
        this->setFocus(true);
    }

    virtual bool hasKeyboardFocus() Q_DECL_OVERRIDE
    {
        return this->hasFocus();
    }

    virtual void show() Q_DECL_OVERRIDE
    {
        this->setVisible(true);
    }

    virtual void hide() Q_DECL_OVERRIDE
    {
        this->setVisible(false);
    }

    virtual bool isVisible() const Q_DECL_OVERRIDE
    {
        return ItemBaseT::isVisible();
    }

    virtual QWindow* window() const Q_DECL_OVERRIDE
    {
        return ItemBaseT::window();
    }

    virtual void updateCursor(const QCursor &cursor) Q_DECL_OVERRIDE
    {
        this->setCursor(cursor);
    }

    virtual void resize(int width, int height) Q_DECL_OVERRIDE
    {
        this->setSize(QSizeF(width, height));
    }

    virtual bool supportsHardwareAcceleration() const Q_DECL_OVERRIDE
    {
        return false;
    }

    void focusInEvent(QFocusEvent *event)
    {
        m_client->forwardEvent(event);
    }

    void focusOutEvent(QFocusEvent *event)
    {
        m_client->forwardEvent(event);
    }

    void mousePressEvent(QMouseEvent *event)
    {
        this->forceActiveFocus();
        m_client->forwardEvent(event);
    }

    void mouseMoveEvent(QMouseEvent *event)
    {
        m_client->forwardEvent(event);
    }

    void mouseReleaseEvent(QMouseEvent *event)
    {
        m_client->forwardEvent(event);
    }

    void mouseDoubleClickEvent(QMouseEvent *event)
    {
        m_client->forwardEvent(event);
    }

    void keyPressEvent(QKeyEvent *event)
    {
        m_client->forwardEvent(event);
    }

    void keyReleaseEvent(QKeyEvent *event)
    {
        m_client->forwardEvent(event);
    }

    void wheelEvent(QWheelEvent *event)
    {
        m_client->forwardEvent(event);
    }

    void touchEvent(QTouchEvent *event)
    {
        m_client->forwardEvent(event);
    }

    void hoverMoveEvent(QHoverEvent *event)
    {
        m_client->forwardEvent(event);
    }

    void inputMethodStateChanged(bool editorVisible)
    {
        if (qApp->inputMethod()->isVisible() == editorVisible)
            return;

        this->setFlag(QQuickItem::ItemAcceptsInputMethod, editorVisible);
        qApp->inputMethod()->update(Qt::ImQueryInput | Qt::ImEnabled | Qt::ImHints);
        qApp->inputMethod()->setVisible(editorVisible);
    }

    QVariant inputMethodQuery(Qt::InputMethodQuery query) const
    {
        return m_client->inputMethodQuery(query);
    }

    virtual void inputMethodEvent(QInputMethodEvent *event) Q_DECL_OVERRIDE
    {
        m_client->forwardEvent(event);
    }

protected:
    void geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
    {
        ItemBaseT::geometryChanged(newGeometry, oldGeometry);
        m_client->notifyResize();
    }

    RenderWidgetHostViewQtDelegateClient *m_client;
};

#if (QT_VERSION >= QT_VERSION_CHECK(5, 2, 0))
class RenderWidgetHostViewQtDelegateQuick : public RenderWidgetHostViewQtDelegateQuickBase<QQuickItem>
{
    Q_OBJECT
public:
    RenderWidgetHostViewQtDelegateQuick(RenderWidgetHostViewQtDelegateClient *client, QQuickItem *parent = 0);

    virtual void update(const QRect& rect = QRect()) Q_DECL_OVERRIDE;
    virtual bool supportsHardwareAcceleration() const Q_DECL_OVERRIDE;

    virtual void itemChange(ItemChange change, const ItemChangeData &value) Q_DECL_OVERRIDE;
    virtual QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *) Q_DECL_OVERRIDE;
};
#endif // QT_VERSION

class RenderWidgetHostViewQtDelegateQuickPainted : public RenderWidgetHostViewQtDelegateQuickBase<QQuickPaintedItem>
{
    Q_OBJECT
public:
    RenderWidgetHostViewQtDelegateQuickPainted(RenderWidgetHostViewQtDelegateClient *client, QQuickItem *parent = 0);

    virtual void update(const QRect& rect = QRect()) Q_DECL_OVERRIDE;

    void paint(QPainter *painter);

protected:
    void updatePolish();
};

#endif