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/*
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef PageClientQt_h
#define PageClientQt_h
#include "QWebPageClient.h"
#include "qgraphicswebview.h"
#include "qwebframe.h"
#include "qwebframe_p.h"
#include "qwebpage.h"
#include "qwebpage_p.h"
#include <qgraphicsscene.h>
#include <qgraphicsview.h>
#include <qgraphicswidget.h>
#include <qmetaobject.h>
#include <qscrollbar.h>
#include <qstyleoption.h>
#include <qtimer.h>
#include <qwidget.h>
namespace WebCore {
class PageClientQWidget final : public QWebPageClient {
public:
PageClientQWidget(QWidget* newView, QWebPage* newPage)
: view(newView)
, page(newPage)
{
Q_ASSERT(view);
}
~PageClientQWidget() final;
bool isQWidgetClient() const final { return true; }
void scroll(int dx, int dy, const QRect&) final;
void update(const QRect& dirtyRect) final;
void repaintViewport() final;
void setInputMethodEnabled(bool) final;
bool inputMethodEnabled() const final;
void setInputMethodHints(Qt::InputMethodHints) final;
#ifndef QT_NO_CURSOR
QCursor cursor() const final;
void updateCursor(const QCursor&) final;
#endif
QPalette palette() const final;
int screenNumber() const final;
QObject* ownerWidget() const final;
QRect geometryRelativeToOwnerWidget() const final;
QPoint mapToOwnerWindow(const QPoint&) const final;
QObject* pluginParent() const final;
QStyle* style() const final;
bool viewResizesToContentsEnabled() const final { return false; }
QRectF windowRect() const final;
void setWidgetVisible(Widget*, bool visible) final;
bool isViewVisible() final;
QWidget* view;
QWebPage* page;
};
#if !defined(QT_NO_GRAPHICSVIEW)
// the overlay is here for one reason only: to have the scroll-bars and other
// extra UI elements appear on top of any QGraphicsItems created by CSS compositing layers
class QGraphicsItemOverlay final : public QGraphicsObject {
public:
QGraphicsItemOverlay(QGraphicsWidget* view, QWebPage* p)
: QGraphicsObject(view)
, q(view)
, page(p)
{
setPos(0, 0);
setFlag(QGraphicsItem::ItemUsesExtendedStyleOption, true);
setCacheMode(QGraphicsItem::DeviceCoordinateCache);
}
QRectF boundingRect() const final
{
return q->boundingRect();
}
void paint(QPainter* painter, const QStyleOptionGraphicsItem* options, QWidget*) final
{
page->mainFrame()->render(painter, static_cast<QWebFrame::RenderLayer>(QWebFrame::AllLayers&(~QWebFrame::ContentsLayer)), options->exposedRect.toRect());
}
void prepareGraphicsItemGeometryChange()
{
prepareGeometryChange();
}
QGraphicsWidget* q;
QWebPage* page;
};
class PageClientQGraphicsWidget final : public QWebPageClient {
public:
PageClientQGraphicsWidget(QGraphicsWebView* newView, QWebPage* newPage)
: view(newView)
, page(newPage)
, viewResizesToContents(false)
, overlay(0)
{
Q_ASSERT(view);
// the overlay and stays alive for the lifetime of
// this QGraphicsWebView as the scrollbars are needed when there's no compositing
view->setFlag(QGraphicsItem::ItemUsesExtendedStyleOption);
}
~PageClientQGraphicsWidget() final;
bool isQWidgetClient() const final { return false; }
void scroll(int dx, int dy, const QRect&) final;
void update(const QRect& dirtyRect) final;
void repaintViewport() final;
void setInputMethodEnabled(bool) final;
bool inputMethodEnabled() const final;
void setInputMethodHints(Qt::InputMethodHints) final;
#ifndef QT_NO_CURSOR
QCursor cursor() const final;
void updateCursor(const QCursor&) final;
#endif
QPalette palette() const final;
int screenNumber() const final;
QObject* ownerWidget() const final;
QRect geometryRelativeToOwnerWidget() const final;
QPoint mapToOwnerWindow(const QPoint&) const final;
QObject* pluginParent() const final;
QStyle* style() const final;
bool viewResizesToContentsEnabled() const final { return viewResizesToContents; }
void setWidgetVisible(Widget*, bool) final;
bool isViewVisible() final;
#if USE(TILED_BACKING_STORE)
virtual QRectF graphicsItemVisibleRect() const;
#endif
bool makeOpenGLContextCurrentIfAvailable() final;
QRectF windowRect() const final;
QGraphicsView* firstGraphicsView() const;
QGraphicsWebView* view;
QWebPage* page;
bool viewResizesToContents;
// the overlay gets instantiated when the root layer is attached, and get deleted when it's detached
QGraphicsItemOverlay* overlay;
// we need to put the root graphics layer behind the overlay (which contains the scrollbar)
enum { RootGraphicsLayerZValue, OverlayZValue };
};
#endif // QT_NO_GRAPHICSVIEW
}
#endif // PageClientQt
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