1 | /* |
2 | * Copyright (C) 2013 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 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 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 | #pragma once |
27 | |
28 | #include "RenderIterator.h" |
29 | |
30 | namespace WebCore { |
31 | |
32 | template <typename T> |
33 | class RenderChildIterator : public RenderIterator<T> { |
34 | public: |
35 | RenderChildIterator(const RenderElement& parent); |
36 | RenderChildIterator(const RenderElement& parent, T* current); |
37 | RenderChildIterator& operator++(); |
38 | }; |
39 | |
40 | template <typename T> |
41 | class RenderChildConstIterator : public RenderConstIterator<T> { |
42 | public: |
43 | RenderChildConstIterator(const RenderElement& parent); |
44 | RenderChildConstIterator(const RenderElement& parent, const T* current); |
45 | RenderChildConstIterator& operator++(); |
46 | }; |
47 | |
48 | template <typename T> |
49 | class RenderChildIteratorAdapter { |
50 | public: |
51 | RenderChildIteratorAdapter(RenderElement& parent); |
52 | RenderChildIterator<T> begin(); |
53 | RenderChildIterator<T> end(); |
54 | T* first(); |
55 | T* last(); |
56 | |
57 | private: |
58 | RenderElement& m_parent; |
59 | }; |
60 | |
61 | template <typename T> |
62 | class RenderChildConstIteratorAdapter { |
63 | public: |
64 | RenderChildConstIteratorAdapter(const RenderElement& parent); |
65 | RenderChildConstIterator<T> begin() const; |
66 | RenderChildConstIterator<T> end() const; |
67 | const T* first() const; |
68 | const T* last() const; |
69 | |
70 | private: |
71 | const RenderElement& m_parent; |
72 | }; |
73 | |
74 | template <typename T> RenderChildIteratorAdapter<T> childrenOfType(RenderElement&); |
75 | template <typename T> RenderChildConstIteratorAdapter<T> childrenOfType(const RenderElement&); |
76 | |
77 | // RenderChildIterator |
78 | |
79 | template <typename T> |
80 | inline RenderChildIterator<T>::RenderChildIterator(const RenderElement& parent) |
81 | : RenderIterator<T>(&parent) |
82 | { |
83 | } |
84 | |
85 | template <typename T> |
86 | inline RenderChildIterator<T>::RenderChildIterator(const RenderElement& parent, T* current) |
87 | : RenderIterator<T>(&parent, current) |
88 | { |
89 | } |
90 | |
91 | template <typename T> |
92 | inline RenderChildIterator<T>& RenderChildIterator<T>::operator++() |
93 | { |
94 | return static_cast<RenderChildIterator<T>&>(RenderIterator<T>::traverseNextSibling()); |
95 | } |
96 | |
97 | // RenderChildConstIterator |
98 | |
99 | template <typename T> |
100 | inline RenderChildConstIterator<T>::RenderChildConstIterator(const RenderElement& parent) |
101 | : RenderConstIterator<T>(&parent) |
102 | { |
103 | } |
104 | |
105 | template <typename T> |
106 | inline RenderChildConstIterator<T>::RenderChildConstIterator(const RenderElement& parent, const T* current) |
107 | : RenderConstIterator<T>(&parent, current) |
108 | { |
109 | } |
110 | |
111 | template <typename T> |
112 | inline RenderChildConstIterator<T>& RenderChildConstIterator<T>::operator++() |
113 | { |
114 | return static_cast<RenderChildConstIterator<T>&>(RenderConstIterator<T>::traverseNextSibling()); |
115 | } |
116 | |
117 | // RenderChildIteratorAdapter |
118 | |
119 | template <typename T> |
120 | inline RenderChildIteratorAdapter<T>::RenderChildIteratorAdapter(RenderElement& parent) |
121 | : m_parent(parent) |
122 | { |
123 | } |
124 | |
125 | template <typename T> |
126 | inline RenderChildIterator<T> RenderChildIteratorAdapter<T>::begin() |
127 | { |
128 | return RenderChildIterator<T>(m_parent, RenderTraversal::firstChild<T>(m_parent)); |
129 | } |
130 | |
131 | template <typename T> |
132 | inline RenderChildIterator<T> RenderChildIteratorAdapter<T>::end() |
133 | { |
134 | return RenderChildIterator<T>(m_parent); |
135 | } |
136 | |
137 | template <typename T> |
138 | inline T* RenderChildIteratorAdapter<T>::first() |
139 | { |
140 | return RenderTraversal::firstChild<T>(m_parent); |
141 | } |
142 | |
143 | template <typename T> |
144 | inline T* RenderChildIteratorAdapter<T>::last() |
145 | { |
146 | return RenderTraversal::lastChild<T>(m_parent); |
147 | } |
148 | |
149 | // RenderChildConstIteratorAdapter |
150 | |
151 | template <typename T> |
152 | inline RenderChildConstIteratorAdapter<T>::RenderChildConstIteratorAdapter(const RenderElement& parent) |
153 | : m_parent(parent) |
154 | { |
155 | } |
156 | |
157 | template <typename T> |
158 | inline RenderChildConstIterator<T> RenderChildConstIteratorAdapter<T>::begin() const |
159 | { |
160 | return RenderChildConstIterator<T>(m_parent, RenderTraversal::firstChild<T>(m_parent)); |
161 | } |
162 | |
163 | template <typename T> |
164 | inline RenderChildConstIterator<T> RenderChildConstIteratorAdapter<T>::end() const |
165 | { |
166 | return RenderChildConstIterator<T>(m_parent); |
167 | } |
168 | |
169 | template <typename T> |
170 | inline const T* RenderChildConstIteratorAdapter<T>::first() const |
171 | { |
172 | return RenderTraversal::firstChild<T>(m_parent); |
173 | } |
174 | |
175 | template <typename T> |
176 | inline const T* RenderChildConstIteratorAdapter<T>::last() const |
177 | { |
178 | return RenderTraversal::lastChild<T>(m_parent); |
179 | } |
180 | |
181 | // Standalone functions |
182 | |
183 | template <typename T> |
184 | inline RenderChildIteratorAdapter<T> childrenOfType(RenderElement& parent) |
185 | { |
186 | return RenderChildIteratorAdapter<T>(parent); |
187 | } |
188 | |
189 | template <typename T> |
190 | inline RenderChildConstIteratorAdapter<T> childrenOfType(const RenderElement& parent) |
191 | { |
192 | return RenderChildConstIteratorAdapter<T>(parent); |
193 | } |
194 | |
195 | } // namespace WebCore |
196 | |