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
|
/*
* Copyright (C) 2013 Google 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.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * 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 DistributedNodes_h
#define DistributedNodes_h
#include "core/dom/Node.h"
#include "wtf/HashMap.h"
#include "wtf/Vector.h"
namespace blink {
class DistributedNodes final {
DISALLOW_NEW();
public:
DistributedNodes() {}
Node* first() const { return m_nodes.front(); }
Node* last() const { return m_nodes.back(); }
Node* at(size_t index) const { return m_nodes.at(index); }
size_t size() const { return m_nodes.size(); }
bool isEmpty() const { return m_nodes.isEmpty(); }
void append(Node*);
void clear() {
m_nodes.clear();
m_indices.clear();
}
void shrinkToFit() { m_nodes.shrinkToFit(); }
bool contains(const Node* node) const { return m_indices.contains(node); }
size_t find(const Node*) const;
Node* nextTo(const Node*) const;
Node* previousTo(const Node*) const;
void swap(DistributedNodes& other);
DECLARE_TRACE();
private:
HeapVector<Member<Node>> m_nodes;
HeapHashMap<Member<const Node>, size_t> m_indices;
};
} // namespace blink
#endif
|
