1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/*
* Copyright (C) 2012 Google Inc. All rights reserved.
* Copyright (C) 2013 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef NodeRenderingTraversal_h
#define NodeRenderingTraversal_h
#include "ContainerNode.h"
namespace WebCore {
namespace NodeRenderingTraversal {
ContainerNode* parent(const Node*);
Node* firstChild(const Node*);
Node* nextSibling(const Node*);
Node* previousSibling(const Node*);
Node* nextInScope(const Node*);
Node* previousInScope(const Node*);
Node* parentInScope(const Node*);
Node* lastChildInScope(const Node*);
ContainerNode* parentSlow(const Node*);
Node* firstChildSlow(const Node*);
Node* nextSiblingSlow(const Node*);
Node* previousSiblingSlow(const Node*);
inline ContainerNode* parent(const Node* node)
{
ASSERT(!node->isPseudoElement());
if (node->needsNodeRenderingTraversalSlowPath())
return parentSlow(node);
ASSERT(node->parentNode() == parentSlow(node));
return node->parentNodeGuaranteedHostFree();
}
inline Node* firstChild(const Node* node)
{
ASSERT(!node->isPseudoElement());
if (node->needsNodeRenderingTraversalSlowPath())
return firstChildSlow(node);
ASSERT(nextSiblingSlow(node) == node->nextSibling());
return node->firstChild();
}
inline Node* nextSibling(const Node* node)
{
ASSERT(!node->isPseudoElement());
if (node->needsNodeRenderingTraversalSlowPath())
return nextSiblingSlow(node);
ASSERT(nextSiblingSlow(node) == node->nextSibling());
return node->nextSibling();
}
inline Node* previousSibling(const Node* node)
{
ASSERT(!node->isPseudoElement());
if (node->needsNodeRenderingTraversalSlowPath())
return previousSiblingSlow(node);
ASSERT(previousSiblingSlow(node) == node->previousSibling());
return node->previousSibling();
}
}
} // namespace WebCore
#endif
|
