htmlvideoelement.h

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

/*
 * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */

#ifndef HTMLVideoElement_h
#define HTMLVideoElement_h

#if ENABLE(VIDEO)

#include "HTMLMediaElement.h"
#include <wtf/OwnPtr.h>

namespace WebCore {

class HTMLImageLoader;

class HTMLVideoElement : public HTMLMediaElement
{
public:
    HTMLVideoElement(const QualifiedName&, Document*);
    
    virtual int tagPriority() const { return 5; }
    virtual bool rendererIsNeeded(RenderStyle*);
#if !ENABLE(PLUGIN_PROXY_FOR_VIDEO)
    virtual RenderObject* createRenderer(RenderArena*, RenderStyle*);
#endif
    virtual void attach();
    virtual void detach();
    virtual void parseMappedAttribute(MappedAttribute* attr);
    virtual bool isVideo() const { return true; }
    virtual bool hasVideo() const { return player() && player()->hasVideo(); }
    virtual bool isURLAttribute(Attribute*) const;
    virtual const QualifiedName& imageSourceAttributeName() const;

    unsigned width() const;
    void setWidth(unsigned);
    unsigned height() const;
    void setHeight(unsigned);
    
    unsigned videoWidth() const;
    unsigned videoHeight() const;
    
    KURL poster() const;
    void setPoster(const String&);

    void updatePosterImage();

private:
    OwnPtr<HTMLImageLoader> m_imageLoader;
    bool m_shouldShowPosterImage;
};

} //namespace

#endif
#endif