1 /*
2 * Copyright (C) 2012 Google 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 are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Neither the name of Google Inc. nor the names of its
11 * contributors may be used to endorse or promote products derived from
12 * this software without specific prior written permission.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
15 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
17 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
18 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
19 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
20 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include "config.h"
28 #include "core/dom/UserActionElementSet.h"
29
30 #include "core/dom/Element.h"
31 #include "core/dom/Node.h"
32
33 namespace WebCore {
34
UserActionElementSet()35 UserActionElementSet::UserActionElementSet()
36 {
37 }
38
~UserActionElementSet()39 UserActionElementSet::~UserActionElementSet()
40 {
41 }
42
didDetach(Node * node)43 void UserActionElementSet::didDetach(Node* node)
44 {
45 ASSERT(node->isUserActionElement());
46 clearFlags(toElement(node), IsActiveFlag | InActiveChainFlag | IsHoveredFlag);
47 }
48
documentDidRemoveLastRef()49 void UserActionElementSet::documentDidRemoveLastRef()
50 {
51 m_elements.clear();
52 }
53
hasFlags(const Node * node,unsigned flags) const54 bool UserActionElementSet::hasFlags(const Node* node, unsigned flags) const
55 {
56 ASSERT(node->isUserActionElement() && node->isElementNode());
57 return hasFlags(toElement(node), flags);
58 }
59
setFlags(Node * node,unsigned flags)60 void UserActionElementSet::setFlags(Node* node, unsigned flags)
61 {
62 if (!node->isElementNode())
63 return;
64 return setFlags(toElement(node), flags);
65 }
66
clearFlags(Node * node,unsigned flags)67 void UserActionElementSet::clearFlags(Node* node, unsigned flags)
68 {
69 if (!node->isElementNode())
70 return;
71 return clearFlags(toElement(node), flags);
72 }
73
hasFlags(const Element * element,unsigned flags) const74 inline bool UserActionElementSet::hasFlags(const Element* element, unsigned flags) const
75 {
76 ASSERT(element->isUserActionElement());
77 ElementFlagMap::const_iterator found = m_elements.find(const_cast<Element*>(element));
78 if (found == m_elements.end())
79 return false;
80 return found->value & flags;
81 }
82
clearFlags(Element * element,unsigned flags)83 inline void UserActionElementSet::clearFlags(Element* element, unsigned flags)
84 {
85 if (!element->isUserActionElement()) {
86 ASSERT(m_elements.end() == m_elements.find(element));
87 return;
88 }
89
90 ElementFlagMap::iterator found = m_elements.find(element);
91 if (found == m_elements.end()) {
92 element->setUserActionElement(false);
93 return;
94 }
95
96 unsigned updated = found->value & ~flags;
97 if (!updated) {
98 element->setUserActionElement(false);
99 m_elements.remove(found);
100 return;
101 }
102
103 found->value = updated;
104 }
105
setFlags(Element * element,unsigned flags)106 inline void UserActionElementSet::setFlags(Element* element, unsigned flags)
107 {
108 ElementFlagMap::iterator result = m_elements.find(element);
109 if (result != m_elements.end()) {
110 ASSERT(element->isUserActionElement());
111 result->value |= flags;
112 return;
113 }
114
115 element->setUserActionElement(true);
116 m_elements.add(element, flags);
117 }
118
119 }
120