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 RenderRubyRun_h
32 #define RenderRubyRun_h
33
34 #include "RenderBlock.h"
35
36 namespace WebCore {
37
38 class RenderRubyBase;
39 class RenderRubyText;
40
41 // RenderRubyRun are 'inline-block/table' like objects,and wrap a single pairing of a ruby base with its ruby text(s).
42 // See RenderRuby.h for further comments on the structure
43
44 class RenderRubyRun : public RenderBlock {
45 public:
46 RenderRubyRun(Node*);
47 virtual ~RenderRubyRun();
48
49 bool hasRubyText() const;
50 bool hasRubyBase() const;
51 bool isEmpty() const;
52 RenderRubyText* rubyText() const;
53 RenderRubyBase* rubyBase() const;
54 RenderRubyBase* rubyBaseSafe(); // creates the base if it doesn't already exist
55
56 virtual RenderObject* layoutSpecialExcludedChild(bool relayoutChildren);
57 virtual void layout();
58
59 virtual bool isChildAllowed(RenderObject*, RenderStyle*) const;
60 virtual void addChild(RenderObject* child, RenderObject* beforeChild = 0);
61 virtual void removeChild(RenderObject* child);
62
63 virtual RenderBlock* firstLineBlock() const;
64 virtual void updateFirstLetter();
65
66 void getOverhang(bool firstLine, RenderObject* startRenderer, RenderObject* endRenderer, int& startOverhang, int& endOverhang) const;
67
68 static RenderRubyRun* staticCreateRubyRun(const RenderObject* parentRuby);
69
70 protected:
71 RenderRubyBase* createRubyBase() const;
72
73 private:
isRubyRun()74 virtual bool isRubyRun() const { return true; }
renderName()75 virtual const char* renderName() const { return "RenderRubyRun (anonymous)"; }
createsAnonymousWrapper()76 virtual bool createsAnonymousWrapper() const { return true; }
removeLeftoverAnonymousBlock(RenderBlock *)77 virtual void removeLeftoverAnonymousBlock(RenderBlock*) { }
78 };
79
toRenderRubyRun(RenderObject * object)80 inline RenderRubyRun* toRenderRubyRun(RenderObject* object)
81 {
82 ASSERT(!object || object->isRubyRun());
83 return static_cast<RenderRubyRun*>(object);
84 }
85
toRenderRubyRun(const RenderObject * object)86 inline const RenderRubyRun* toRenderRubyRun(const RenderObject* object)
87 {
88 ASSERT(!object || object->isBox());
89 return static_cast<const RenderRubyRun*>(object);
90 }
91
92 void toRenderRubyRun(const RenderRubyRun*);
93
94 } // namespace WebCore
95
96 #endif // RenderRubyRun_h
97