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#pragma once
32
33#include "RenderBlockFlow.h"
34#include "RenderInline.h"
35
36namespace WebCore {
37
38// Following the HTML 5 spec, the box object model for a <ruby> element allows several runs of ruby
39// bases with their respective ruby texts looks as follows:
40//
41// 1 RenderRuby object, corresponding to the whole <ruby> HTML element
42// 1+ RenderRubyRun (anonymous)
43// 0 or 1 RenderRubyText - shuffled to the front in order to re-use existing block layouting
44// 0-n inline object(s)
45// 0 or 1 RenderRubyBase - contains the inline objects that make up the ruby base
46// 1-n inline object(s)
47//
48// Note: <rp> elements are defined as having 'display:none' and thus normally are not assigned a renderer.
49//
50// Generated :before/:after content is shunted into anonymous inline blocks
51
52// <ruby> when used as 'display:inline'
53class RenderRubyAsInline final : public RenderInline {
54 WTF_MAKE_ISO_ALLOCATED(RenderRubyAsInline);
55public:
56 RenderRubyAsInline(Element&, RenderStyle&&);
57 virtual ~RenderRubyAsInline();
58
59protected:
60 void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override;
61
62private:
63 bool isRubyInline() const final { return true; }
64 const char* renderName() const override { return "RenderRuby (inline)"; }
65 bool createsAnonymousWrapper() const override { return true; }
66};
67
68// <ruby> when used as 'display:block' or 'display:inline-block'
69class RenderRubyAsBlock final : public RenderBlockFlow {
70 WTF_MAKE_ISO_ALLOCATED(RenderRubyAsBlock);
71public:
72 RenderRubyAsBlock(Element&, RenderStyle&&);
73 virtual ~RenderRubyAsBlock();
74
75 Element& element() const { return downcast<Element>(nodeForNonAnonymous()); }
76
77protected:
78 void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override;
79
80private:
81 bool isRubyBlock() const final { return true; }
82 const char* renderName() const override { return "RenderRuby (block)"; }
83 bool createsAnonymousWrapper() const override { return true; }
84};
85
86
87inline bool isRuby(const RenderObject& renderer) { return (is<RenderRubyAsInline>(renderer) || is<RenderRubyAsBlock>(renderer)); }
88inline bool isRuby(const RenderObject* renderer) { return (renderer && isRuby(*renderer)); }
89
90} // namespace WebCore
91
92SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderRubyAsInline, isRubyInline())
93SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderRubyAsBlock, isRubyBlock())
94