/*
* Copyright (C) 2003 Apple Computer, Inc.
*
* Portions are Copyright (C) 1998 Netscape Communications Corporation.
*
* Other contributors:
* Robert O'Callahan <roc+@cs.cmu.edu>
* David Baron <dbaron@fas.harvard.edu>
* Christian Biesinger <cbiesinger@web.de>
* Randall Jesup <rjesup@wgate.com>
* Roland Mainz <roland.mainz@informatik.med.uni-giessen.de>
* Josh Soref <timeless@mac.com>
* Boris Zbarsky <bzbarsky@mit.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Alternatively, the contents of this file may be used under the terms
* of either the Mozilla Public License Version 1.1, found at
* http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public
* License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html
* (the "GPL"), in which case the provisions of the MPL or the GPL are
* applicable instead of those above. If you wish to allow use of your
* version of this file only under the terms of one of those two
* licenses (the MPL or the GPL) and not to allow others to use your
* version of this file under the LGPL, indicate your decision by
* deletingthe provisions above and replace them with the notice and
* other provisions required by the MPL or the GPL, as the case may be.
* If you do not delete the provisions above, a recipient may use your
* version of this file under any of the LGPL, the MPL or the GPL.
*/
#ifndef RenderMarquee_h
#define RenderMarquee_h
#include "core/html/HTMLMarqueeElement.h"
#include "core/rendering/RenderBlockFlow.h"
#include "core/rendering/style/RenderStyleConstants.h"
#include "platform/Length.h"
#include "platform/Timer.h"
namespace WebCore {
class RenderLayer;
// This class handles the auto-scrolling for <marquee>
class RenderMarquee FINAL : public RenderBlockFlow {
public:
explicit RenderMarquee(HTMLMarqueeElement*);
virtual ~RenderMarquee();
int speed() const { return m_speed; }
int marqueeSpeed() const;
EMarqueeDirection reverseDirection() const { return static_cast<EMarqueeDirection>(-direction()); }
EMarqueeDirection direction() const;
bool isHorizontal() const;
int computePosition(EMarqueeDirection, bool stopAtClientEdge);
void setEnd(int end) { m_end = end; }
void start();
void suspend();
void stop();
// FIXME: This function should be private and called at layout time.
// However <marquee> tests are very timing dependent so we need to keep the existing timing.
void updateMarqueePosition();
void timerFired();
private:
virtual const char* renderName() const OVERRIDE;
virtual bool isMarquee() const OVERRIDE { return true; }
virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE;
virtual void layoutBlock(bool relayoutChildren) OVERRIDE;
int m_currentLoop;
int m_totalLoops;
Timer<HTMLMarqueeElement> m_timer;
int m_start;
int m_end;
int m_speed;
Length m_height;
bool m_reset: 1;
bool m_suspended : 1;
bool m_stopped : 1;
EMarqueeDirection m_direction : 4;
};
DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderMarquee, isMarquee());
} // namespace WebCore
#endif // RenderMarquee_h