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Side by Side Diff: Source/core/dom/ElementTraversal.h

Issue 67473002: Have ElementTraversal / NodeTraversal's next() methods take a reference (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Rebase on master Created 7 years, 1 month ago
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1 /* 1 /*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * (C) 1999 Antti Koivisto (koivisto@kde.org) 3 * (C) 1999 Antti Koivisto (koivisto@kde.org)
4 * (C) 2001 Dirk Mueller (mueller@kde.org) 4 * (C) 2001 Dirk Mueller (mueller@kde.org)
5 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved. 5 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
6 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.t orchmobile.com/) 6 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.t orchmobile.com/)
7 * 7 *
8 * This library is free software; you can redistribute it and/or 8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public 9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either 10 * License as published by the Free Software Foundation; either
(...skipping 19 matching lines...) Expand all
30 30
31 namespace WebCore { 31 namespace WebCore {
32 32
33 namespace ElementTraversal { 33 namespace ElementTraversal {
34 34
35 // First element child of the node. 35 // First element child of the node.
36 Element* firstWithin(const Node*); 36 Element* firstWithin(const Node*);
37 Element* firstWithin(const ContainerNode*); 37 Element* firstWithin(const ContainerNode*);
38 38
39 // Pre-order traversal skipping non-element nodes. 39 // Pre-order traversal skipping non-element nodes.
40 Element* next(const Node*); 40 Element* next(const Node&);
41 Element* next(const Node*, const Node* stayWithin); 41 Element* next(const Node&, const Node* stayWithin);
42 Element* next(const ContainerNode*); 42 Element* next(const ContainerNode&);
43 Element* next(const ContainerNode*, const Node* stayWithin); 43 Element* next(const ContainerNode&, const Node* stayWithin);
44 44
45 // Like next, but skips children. 45 // Like next, but skips children.
46 Element* nextSkippingChildren(const Node*); 46 Element* nextSkippingChildren(const Node*);
47 Element* nextSkippingChildren(const Node*, const Node* stayWithin); 47 Element* nextSkippingChildren(const Node*, const Node* stayWithin);
48 Element* nextSkippingChildren(const ContainerNode*); 48 Element* nextSkippingChildren(const ContainerNode*);
49 Element* nextSkippingChildren(const ContainerNode*, const Node* stayWithin); 49 Element* nextSkippingChildren(const ContainerNode*, const Node* stayWithin);
50 50
51 // Pre-order traversal including the pseudo-elements. 51 // Pre-order traversal including the pseudo-elements.
52 Element* previousIncludingPseudo(const Node*, const Node* stayWithin = 0); 52 Element* previousIncludingPseudo(const Node*, const Node* stayWithin = 0);
53 Element* nextIncludingPseudo(const Node*, const Node* stayWithin = 0); 53 Element* nextIncludingPseudo(const Node*, const Node* stayWithin = 0);
54 Element* nextIncludingPseudoSkippingChildren(const Node*, const Node* stayWithin = 0); 54 Element* nextIncludingPseudoSkippingChildren(const Node*, const Node* stayWithin = 0);
55 55
56 // Utility function to traverse only the element and pseudo-element siblings of a node. 56 // Utility function to traverse only the element and pseudo-element siblings of a node.
57 Element* pseudoAwarePreviousSibling(const Node*); 57 Element* pseudoAwarePreviousSibling(const Node*);
58 58
59 template <class NodeType> 59 template <class NodeType>
60 inline Element* firstElementWithinTemplate(NodeType* current) 60 inline Element* firstElementWithinTemplate(NodeType* current)
61 { 61 {
62 // Except for the root containers, only elements can have element children. 62 // Except for the root containers, only elements can have element children.
63 Node* node = current->firstChild(); 63 Node* node = current->firstChild();
64 while (node && !node->isElementNode()) 64 while (node && !node->isElementNode())
65 node = node->nextSibling(); 65 node = node->nextSibling();
66 return toElement(node); 66 return toElement(node);
67 } 67 }
68 inline Element* firstWithin(const ContainerNode* current) { return firstElementW ithinTemplate(current); } 68 inline Element* firstWithin(const ContainerNode* current) { return firstElementW ithinTemplate(current); }
69 inline Element* firstWithin(const Node* current) { return firstElementWithinTemp late(current); } 69 inline Element* firstWithin(const Node* current) { return firstElementWithinTemp late(current); }
70 70
71 template <class NodeType> 71 template <class NodeType>
72 inline Element* traverseNextElementTemplate(NodeType* current) 72 inline Element* traverseNextElementTemplate(NodeType& current)
73 { 73 {
74 Node* node = NodeTraversal::next(current); 74 Node* node = NodeTraversal::next(current);
75 while (node && !node->isElementNode()) 75 while (node && !node->isElementNode())
76 node = NodeTraversal::nextSkippingChildren(node); 76 node = NodeTraversal::nextSkippingChildren(node);
77 return toElement(node); 77 return toElement(node);
78 } 78 }
79 inline Element* next(const ContainerNode* current) { return traverseNextElementT emplate(current); } 79 inline Element* next(const ContainerNode& current) { return traverseNextElementT emplate(current); }
80 inline Element* next(const Node* current) { return traverseNextElementTemplate(c urrent); } 80 inline Element* next(const Node& current) { return traverseNextElementTemplate(c urrent); }
81 81
82 template <class NodeType> 82 template <class NodeType>
83 inline Element* traverseNextElementTemplate(NodeType* current, const Node* stayW ithin) 83 inline Element* traverseNextElementTemplate(NodeType& current, const Node* stayW ithin)
84 { 84 {
85 Node* node = NodeTraversal::next(current, stayWithin); 85 Node* node = NodeTraversal::next(current, stayWithin);
86 while (node && !node->isElementNode()) 86 while (node && !node->isElementNode())
87 node = NodeTraversal::nextSkippingChildren(node, stayWithin); 87 node = NodeTraversal::nextSkippingChildren(node, stayWithin);
88 return toElement(node); 88 return toElement(node);
89 } 89 }
90 inline Element* next(const ContainerNode* current, const Node* stayWithin) { ret urn traverseNextElementTemplate(current, stayWithin); } 90 inline Element* next(const ContainerNode& current, const Node* stayWithin) { ret urn traverseNextElementTemplate(current, stayWithin); }
91 inline Element* next(const Node* current, const Node* stayWithin) { return trave rseNextElementTemplate(current, stayWithin); } 91 inline Element* next(const Node& current, const Node* stayWithin) { return trave rseNextElementTemplate(current, stayWithin); }
92 92
93 template <class NodeType> 93 template <class NodeType>
94 inline Element* traverseNextElementSkippingChildrenTemplate(NodeType* current) 94 inline Element* traverseNextElementSkippingChildrenTemplate(NodeType* current)
95 { 95 {
96 Node* node = NodeTraversal::nextSkippingChildren(current); 96 Node* node = NodeTraversal::nextSkippingChildren(current);
97 while (node && !node->isElementNode()) 97 while (node && !node->isElementNode())
98 node = NodeTraversal::nextSkippingChildren(node); 98 node = NodeTraversal::nextSkippingChildren(node);
99 return toElement(node); 99 return toElement(node);
100 } 100 }
101 inline Element* nextSkippingChildren(const ContainerNode* current) { return trav erseNextElementSkippingChildrenTemplate(current); } 101 inline Element* nextSkippingChildren(const ContainerNode* current) { return trav erseNextElementSkippingChildrenTemplate(current); }
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142 while (node && !node->isElementNode()) 142 while (node && !node->isElementNode())
143 node = node->pseudoAwarePreviousSibling(); 143 node = node->pseudoAwarePreviousSibling();
144 return toElement(node); 144 return toElement(node);
145 } 145 }
146 146
147 } 147 }
148 148
149 } 149 }
150 150
151 #endif 151 #endif
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