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/*
* This file is part of the HTML widget for KDE.
*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
*
* 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 render_replaced_h
#define render_replaced_h
#include "rendering/render_block.h"
#include <qobject.h>
#include <qscrollview.h>
class KHTMLView;
class QWidget;
namespace DOM
{
class MouseEventImpl;
}
namespace khtml {
class RenderReplaced : public RenderBox
{
public:
RenderReplaced(DOM::NodeImpl* node);
virtual const char *renderName() const { return "RenderReplaced"; }
virtual bool isRenderReplaced() const { return true; }
virtual bool childAllowed() const { return false; }
virtual void calcMinMaxWidth();
virtual short intrinsicWidth() const { return m_intrinsicWidth; }
virtual int intrinsicHeight() const { return m_intrinsicHeight; }
void setIntrinsicWidth(int w) { m_intrinsicWidth = w; }
void setIntrinsicHeight(int h) { m_intrinsicHeight = h; }
virtual void position(InlineBox*, int, int, bool);
// Return before, after (offset set to max), or inside the replaced element,
// at @p offset
virtual FindSelectionResult checkSelectionPoint( int _x, int _y, int _tx, int _ty,
DOM::NodeImpl*& node, int & offset,
SelPointState & );
/** returns the lowest possible value the caret offset may have to
* still point to a valid position.
*
* Returns 0.
*/
virtual long minOffset() const { return 0; }
/** returns the highest possible value the caret offset may have to
* still point to a valid position.
*
* Returns 0.
*/
virtual long maxOffset() const { return 0; }
protected:
short m_intrinsicWidth;
short m_intrinsicHeight;
};
class RenderWidget : public QObject, public RenderReplaced, public khtml::Shared<RenderWidget>
{
Q_OBJECT
public:
RenderWidget(DOM::NodeImpl* node);
virtual ~RenderWidget();
virtual void setStyle(RenderStyle *style);
virtual void paint( PaintInfo& i, int tx, int ty );
virtual bool isWidget() const { return true; };
virtual bool isFrame() const { return false; }
virtual void detach( );
virtual void layout( );
virtual void updateFromElement();
QWidget *widget() const { return m_widget; }
KHTMLView* view() const { return m_view; }
void deref();
void cancelPendingResize();
bool needsMask() const { return m_needsMask; }
static void paintWidget(PaintInfo& pI, QWidget *widget, int tx, int ty);
virtual bool handleEvent(const DOM::EventImpl& ev);
#ifdef ENABLE_DUMP
virtual void dump(QTextStream &stream, const QString &ind) const;
#endif
// for ECMA to flush all pending resizes
KDE_EXPORT static void flushWidgetResizes();
public slots:
void slotWidgetDestructed();
bool isKHTMLWidget() const { return m_isKHTMLWidget; }
protected:
virtual bool canHaveBorder() const { return false; }
virtual bool acceptsSyntheticEvents() const { return true; }
virtual void handleFocusOut() {}
bool event( QEvent *e );
bool eventFilter(QObject* /*o*/, QEvent* e);
void setQWidget(QWidget *widget);
void resizeWidget( int w, int h );
QWidget *m_widget;
KHTMLView* m_view;
//Because we mess with normal detach due to ref/deref,
//we need to keep track of the arena ourselves
//so it doesn't get yanked from us, etc.
SharedPtr<RenderArena> m_arena;
bool m_resizePending;
bool m_discardResizes;
bool m_isKHTMLWidget;
bool m_needsMask;
public:
virtual int borderTop() const { return canHaveBorder() ? RenderReplaced::borderTop() : 0; }
virtual int borderBottom() const { return canHaveBorder() ? RenderReplaced::borderBottom() : 0; }
virtual int borderLeft() const { return canHaveBorder() ? RenderReplaced::borderLeft() : 0; }
virtual int borderRight() const { return canHaveBorder() ? RenderReplaced::borderRight() : 0; }
class EventPropagator : public QWidget {
public:
void sendEvent(QEvent *e);
};
class ScrollViewEventPropagator : public QScrollView {
public:
void sendEvent(QEvent *e);
};
};
extern bool allowWidgetPaintEvents;
}
#endif
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