1/*
2 * Copyright (C) 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef HTMLVideoElement_h
27#define HTMLVideoElement_h
28
29#include "core/html/HTMLMediaElement.h"
30
31namespace WebCore {
32
33class ExceptionState;
34class HTMLImageLoader;
35
36class HTMLVideoElement FINAL : public HTMLMediaElement {
37public:
38    static PassRefPtr<HTMLVideoElement> create(Document&, bool createdByParser = false);
39
40    unsigned videoWidth() const;
41    unsigned videoHeight() const;
42
43    // Fullscreen
44    void webkitEnterFullscreen(ExceptionState&);
45    void webkitExitFullscreen();
46    bool webkitSupportsFullscreen();
47    bool webkitDisplayingFullscreen();
48
49    // Statistics
50    unsigned webkitDecodedFrameCount() const;
51    unsigned webkitDroppedFrameCount() const;
52
53    // Used by canvas to gain raw pixel access
54    void paintCurrentFrameInContext(GraphicsContext*, const IntRect&);
55
56    // Used by WebGL to do GPU-GPU textures copy if possible.
57    // See more details at MediaPlayer::copyVideoTextureToPlatformTexture() defined in Source/WebCore/platform/graphics/MediaPlayer.h.
58    bool copyVideoTextureToPlatformTexture(GraphicsContext3D*, Platform3DObject texture, GC3Dint level, GC3Denum type, GC3Denum internalFormat, bool premultiplyAlpha, bool flipY);
59
60    bool shouldDisplayPosterImage() const { return displayMode() == Poster || displayMode() == PosterWaitingForVideo; }
61
62    KURL posterImageURL() const;
63
64private:
65    HTMLVideoElement(Document&, bool);
66
67    virtual bool rendererIsNeeded(const RenderStyle&) OVERRIDE;
68    virtual RenderObject* createRenderer(RenderStyle*) OVERRIDE;
69    virtual void attach(const AttachContext& = AttachContext()) OVERRIDE;
70    virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
71    virtual bool isPresentationAttribute(const QualifiedName&) const OVERRIDE;
72    virtual void collectStyleForPresentationAttribute(const QualifiedName&, const AtomicString&, MutableStylePropertySet*) OVERRIDE;
73    virtual bool isVideo() const OVERRIDE { return true; }
74    virtual bool hasVideo() const OVERRIDE { return player() && player()->hasVideo(); }
75    virtual bool supportsFullscreen() const OVERRIDE;
76    virtual bool isURLAttribute(const Attribute&) const OVERRIDE;
77    virtual const AtomicString imageSourceURL() const OVERRIDE;
78
79    bool hasAvailableVideoFrame() const;
80    virtual void updateDisplayState() OVERRIDE;
81    virtual void didMoveToNewDocument(Document& oldDocument) OVERRIDE;
82    virtual void setDisplayMode(DisplayMode) OVERRIDE;
83
84    OwnPtr<HTMLImageLoader> m_imageLoader;
85
86    AtomicString m_defaultPosterURL;
87};
88
89inline bool isHTMLVideoElement(const Node* node)
90{
91    return node->hasTagName(HTMLNames::videoTag);
92}
93
94inline bool isHTMLVideoElement(const Element* element)
95{
96    return element->hasTagName(HTMLNames::videoTag);
97}
98
99DEFINE_NODE_TYPE_CASTS(HTMLVideoElement, hasTagName(HTMLNames::videoTag));
100
101} //namespace
102
103#endif
104