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 #include "core/html/canvas/CanvasImageSource.h" 31 32 namespace blink { 33 class WebGraphicsContext3D; 34 } 35 36 namespace WebCore { 37 38 class ExceptionState; 39 class HTMLImageLoader; 40 41 class HTMLVideoElement FINAL : public HTMLMediaElement, public CanvasImageSource { 42 public: 43 static PassRefPtrWillBeRawPtr<HTMLVideoElement> create(Document&); 44 virtual void trace(Visitor*) OVERRIDE; 45 46 unsigned videoWidth() const; 47 unsigned videoHeight() const; 48 49 // Fullscreen 50 void webkitEnterFullscreen(ExceptionState&); 51 void webkitExitFullscreen(); 52 bool webkitSupportsFullscreen(); 53 bool webkitDisplayingFullscreen(); 54 55 // Statistics 56 unsigned webkitDecodedFrameCount() const; 57 unsigned webkitDroppedFrameCount() const; 58 59 // Used by canvas to gain raw pixel access 60 void paintCurrentFrameInContext(GraphicsContext*, const IntRect&) const; 61 62 // Used by WebGL to do GPU-GPU textures copy if possible. 63 // See more details at MediaPlayer::copyVideoTextureToPlatformTexture() defined in Source/WebCore/platform/graphics/MediaPlayer.h. 64 bool copyVideoTextureToPlatformTexture(blink::WebGraphicsContext3D*, Platform3DObject texture, GC3Dint level, GC3Denum type, GC3Denum internalFormat, bool premultiplyAlpha, bool flipY); 65 66 bool shouldDisplayPosterImage() const { return displayMode() == Poster || displayMode() == PosterWaitingForVideo; } 67 68 KURL posterImageURL() const; 69 70 // FIXME: Remove this when WebMediaPlayerClientImpl::loadInternal does not depend on it. 71 virtual KURL mediaPlayerPosterURL() OVERRIDE; 72 73 // CanvasImageSource implementation 74 virtual PassRefPtr<Image> getSourceImageForCanvas(SourceImageMode, SourceImageStatus*) const OVERRIDE; 75 virtual bool isVideoElement() const OVERRIDE { return true; } 76 virtual bool wouldTaintOrigin(SecurityOrigin*) const OVERRIDE; 77 virtual FloatSize sourceSize() const OVERRIDE; 78 virtual const KURL& sourceURL() const OVERRIDE { return currentSrc(); } 79 80 private: 81 HTMLVideoElement(Document&); 82 83 virtual bool rendererIsNeeded(const RenderStyle&) OVERRIDE; 84 virtual RenderObject* createRenderer(RenderStyle*) OVERRIDE; 85 virtual void attach(const AttachContext& = AttachContext()) OVERRIDE; 86 virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE; 87 virtual bool isPresentationAttribute(const QualifiedName&) const OVERRIDE; 88 virtual void collectStyleForPresentationAttribute(const QualifiedName&, const AtomicString&, MutableStylePropertySet*) OVERRIDE; 89 virtual bool hasVideo() const OVERRIDE { return webMediaPlayer() && webMediaPlayer()->hasVideo(); } 90 bool supportsFullscreen() const; 91 virtual bool isURLAttribute(const Attribute&) const OVERRIDE; 92 virtual const AtomicString imageSourceURL() const OVERRIDE; 93 94 bool hasAvailableVideoFrame() const; 95 virtual void updateDisplayState() OVERRIDE; 96 virtual void didMoveToNewDocument(Document& oldDocument) OVERRIDE; 97 virtual void setDisplayMode(DisplayMode) OVERRIDE; 98 99 OwnPtrWillBeMember<HTMLImageLoader> m_imageLoader; 100 101 AtomicString m_defaultPosterURL; 102 }; 103 104 } //namespace 105 106 #endif 107