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 RenderMedia_h 27 #define RenderMedia_h 28 29 #include "core/rendering/RenderImage.h" 30 31 namespace blink { 32 33 class HTMLMediaElement; 34 35 class RenderMedia : public RenderImage { 36 public: 37 explicit RenderMedia(HTMLMediaElement*); 38 virtual ~RenderMedia(); 39 virtual void trace(Visitor*) OVERRIDE; 40 41 RenderObject* firstChild() const { ASSERT(children() == virtualChildren()); return children()->firstChild(); } 42 RenderObject* lastChild() const { ASSERT(children() == virtualChildren()); return children()->lastChild(); } 43 44 // If you have a RenderMedia, use firstChild or lastChild instead. 45 void slowFirstChild() const WTF_DELETED_FUNCTION; 46 void slowLastChild() const WTF_DELETED_FUNCTION; 47 48 const RenderObjectChildList* children() const { return &m_children; } 49 RenderObjectChildList* children() { return &m_children; } 50 51 HTMLMediaElement* mediaElement() const; 52 53 protected: 54 virtual void layout() OVERRIDE; 55 56 private: 57 virtual RenderObjectChildList* virtualChildren() OVERRIDE FINAL { return children(); } 58 virtual const RenderObjectChildList* virtualChildren() const OVERRIDE FINAL { return children(); } 59 60 virtual LayerType layerTypeRequired() const OVERRIDE { return NormalLayer; } 61 62 // FIXME: RenderMedia::layout makes assumptions about what children are allowed 63 // so we can't support generated content. 64 virtual bool canHaveGeneratedChildren() const OVERRIDE FINAL { return false; } 65 virtual bool canHaveChildren() const OVERRIDE FINAL { return true; } 66 virtual bool isChildAllowed(RenderObject*, RenderStyle*) const override final; 67 68 virtual const char* renderName() const OVERRIDE { return "RenderMedia"; } 69 virtual bool isMedia() const OVERRIDE FINAL { return true; } 70 virtual bool isImage() const OVERRIDE FINAL { return false; } 71 virtual void paintReplaced(PaintInfo&, const LayoutPoint&) OVERRIDE; 72 73 RenderObjectChildList m_children; 74 }; 75 76 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderMedia, isMedia()); 77 78 } // namespace blink 79 80 #endif // RenderMedia_h 81
