1 /* 2 * Copyright (C) 2009 Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef RenderRuby_h 32 #define RenderRuby_h 33 34 #include "RenderBlock.h" 35 #include "RenderInline.h" 36 37 namespace WebCore { 38 39 // Following the HTML 5 spec, the box object model for a <ruby> element allows several runs of ruby 40 // bases with their respective ruby texts looks as follows: 41 // 42 // 1 RenderRuby object, corresponding to the whole <ruby> HTML element 43 // 1+ RenderRubyRun (anonymous) 44 // 0 or 1 RenderRubyText - shuffled to the front in order to re-use existing block layouting 45 // 0-n inline object(s) 46 // 0 or 1 RenderRubyBase - contains the inline objects that make up the ruby base 47 // 1-n inline object(s) 48 // 49 // Note: <rp> elements are defined as having 'display:none' and thus normally are not assigned a renderer. 50 // 51 // Generated :before/:after content is shunted into anonymous inline blocks 52 53 // <ruby> when used as 'display:inline' 54 class RenderRubyAsInline : public RenderInline { 55 public: 56 RenderRubyAsInline(Node*); 57 virtual ~RenderRubyAsInline(); 58 59 virtual void addChild(RenderObject* child, RenderObject* beforeChild = 0); 60 virtual void removeChild(RenderObject* child); 61 62 protected: 63 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle); 64 65 private: 66 virtual bool isRuby() const { return true; } 67 virtual const char* renderName() const { return "RenderRuby (inline)"; } 68 virtual bool createsAnonymousWrapper() const { return true; } 69 virtual void removeLeftoverAnonymousBlock(RenderBlock*) { ASSERT_NOT_REACHED(); } 70 }; 71 72 // <ruby> when used as 'display:block' or 'display:inline-block' 73 class RenderRubyAsBlock : public RenderBlock { 74 public: 75 RenderRubyAsBlock(Node*); 76 virtual ~RenderRubyAsBlock(); 77 78 virtual void addChild(RenderObject* child, RenderObject* beforeChild = 0); 79 virtual void removeChild(RenderObject* child); 80 81 protected: 82 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle); 83 84 private: 85 virtual bool isRuby() const { return true; } 86 virtual const char* renderName() const { return "RenderRuby (block)"; } 87 virtual bool createsAnonymousWrapper() const { return true; } 88 virtual void removeLeftoverAnonymousBlock(RenderBlock*) { ASSERT_NOT_REACHED(); } 89 }; 90 91 } // namespace WebCore 92 93 #endif // RenderRuby_h 94
