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1 /* | 1 /* |
2 * Copyright (C) 2013 Samsung Electronics. All rights reserved. | 2 * Copyright (C) 2013 Samsung Electronics. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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31 #ifndef ParentNode_h | 31 #ifndef ParentNode_h |
32 #define ParentNode_h | 32 #define ParentNode_h |
33 | 33 |
34 #include "core/dom/ContainerNode.h" | 34 #include "core/dom/ContainerNode.h" |
35 #include "core/dom/ElementTraversal.h" | 35 #include "core/dom/ElementTraversal.h" |
36 | 36 |
37 namespace WebCore { | 37 namespace WebCore { |
38 | 38 |
39 class ParentNode { | 39 class ParentNode { |
40 public: | 40 public: |
41 static PassRefPtr<HTMLCollection> children(ContainerNode* node) | 41 static PassRefPtr<HTMLCollection> children(ContainerNode& node) |
42 { | 42 { |
43 return node->children(); | 43 return node.children(); |
44 } | 44 } |
45 | 45 |
46 static Element* firstElementChild(ContainerNode* node) | 46 static Element* firstElementChild(ContainerNode& node) |
47 { | 47 { |
48 ASSERT(node); | 48 return ElementTraversal::firstWithin(node); |
49 return ElementTraversal::firstWithin(*node); | |
50 } | 49 } |
51 | 50 |
52 static Element* lastElementChild(ContainerNode* node) | 51 static Element* lastElementChild(ContainerNode& node) |
53 { | 52 { |
54 ASSERT(node); | 53 return ElementTraversal::lastWithin(node); |
55 return ElementTraversal::lastWithin(*node); | |
56 } | 54 } |
57 | 55 |
58 static unsigned childElementCount(ContainerNode* node) | 56 static unsigned childElementCount(ContainerNode& node) |
59 { | 57 { |
60 ASSERT(node); | |
61 unsigned count = 0; | 58 unsigned count = 0; |
62 for (Element* child = ElementTraversal::firstWithin(*node); child; child
= ElementTraversal::nextSibling(*child)) | 59 for (Element* child = ElementTraversal::firstWithin(node); child; child
= ElementTraversal::nextSibling(*child)) |
63 ++count; | 60 ++count; |
64 return count; | 61 return count; |
65 } | 62 } |
66 }; | 63 }; |
67 | 64 |
68 } // namespace WebCore | 65 } // namespace WebCore |
69 | 66 |
70 #endif // ParentNode_h | 67 #endif // ParentNode_h |
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