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Side by Side Diff: Source/WebCore/dom/UserGestureIndicator.cpp

Issue 12918021: Merge 145453 (Closed) Base URL: http://svn.webkit.org/repository/webkit/branches/chromium/1410/
Patch Set: Created 7 years, 9 months ago
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1 /* 1 /*
2 * Copyright (C) 2010 Apple Inc. All rights reserved. 2 * Copyright (C) 2010 Apple Inc. 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 5 * modification, are permitted provided that the following conditions
6 * are met: 6 * are met:
7 * 1. Redistributions of source code must retain the above copyright 7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer. 8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright 9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the 10 * notice, this list of conditions and the following disclaimer in the
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52 { 52 {
53 } 53 }
54 54
55 size_t m_consumableGestures; 55 size_t m_consumableGestures;
56 }; 56 };
57 57
58 } 58 }
59 59
60 static bool isDefinite(ProcessingUserGestureState state) 60 static bool isDefinite(ProcessingUserGestureState state)
61 { 61 {
62 return state == DefinitelyProcessingUserGesture || state == DefinitelyNotPro cessingUserGesture; 62 return state == DefinitelyProcessingNewUserGesture || state == DefinitelyNot ProcessingUserGesture;
63 } 63 }
64 64
65 ProcessingUserGestureState UserGestureIndicator::s_state = DefinitelyNotProcessi ngUserGesture; 65 ProcessingUserGestureState UserGestureIndicator::s_state = DefinitelyNotProcessi ngUserGesture;
66 UserGestureIndicator* UserGestureIndicator::s_topmostIndicator = 0; 66 UserGestureIndicator* UserGestureIndicator::s_topmostIndicator = 0;
67 67
68 UserGestureIndicator::UserGestureIndicator(ProcessingUserGestureState state) 68 UserGestureIndicator::UserGestureIndicator(ProcessingUserGestureState state)
69 : m_previousState(s_state) 69 : m_previousState(s_state)
70 { 70 {
71 // We overwrite s_state only if the caller is definite about the gesture sta te. 71 // We overwrite s_state only if the caller is definite about the gesture sta te.
72 if (isDefinite(state)) { 72 if (isDefinite(state)) {
73 if (!s_topmostIndicator) { 73 if (!s_topmostIndicator) {
74 s_topmostIndicator = this; 74 s_topmostIndicator = this;
75 m_token = GestureToken::create(); 75 m_token = GestureToken::create();
76 } else 76 } else
77 m_token = s_topmostIndicator->currentToken(); 77 m_token = s_topmostIndicator->currentToken();
78 s_state = state; 78 s_state = state;
79 } 79 }
80 80
81 if (state == DefinitelyProcessingUserGesture) 81 if (state == DefinitelyProcessingNewUserGesture)
82 static_cast<GestureToken*>(m_token.get())->addGesture(); 82 static_cast<GestureToken*>(m_token.get())->addGesture();
83 ASSERT(isDefinite(s_state)); 83 ASSERT(isDefinite(s_state));
84 } 84 }
85 85
86 UserGestureIndicator::UserGestureIndicator(PassRefPtr<UserGestureIndicator::Toke n> token) 86 UserGestureIndicator::UserGestureIndicator(PassRefPtr<UserGestureIndicator::Toke n> token)
87 : m_previousState(s_state) 87 : m_previousState(s_state)
88 { 88 {
89 if (token && static_cast<GestureToken*>(token.get())->hasGestures()) { 89 if (token && static_cast<GestureToken*>(token.get())->hasGestures()) {
90 if (!s_topmostIndicator) { 90 if (!s_topmostIndicator) {
91 s_topmostIndicator = this; 91 s_topmostIndicator = this;
92 m_token = token; 92 m_token = token;
93 } else { 93 } else {
94 m_token = s_topmostIndicator->currentToken(); 94 m_token = s_topmostIndicator->currentToken();
95 static_cast<GestureToken*>(m_token.get())->addGesture(); 95 static_cast<GestureToken*>(m_token.get())->addGesture();
96 static_cast<GestureToken*>(token.get())->consumeGesture(); 96 static_cast<GestureToken*>(token.get())->consumeGesture();
97 } 97 }
98 s_state = DefinitelyProcessingUserGesture; 98 s_state = DefinitelyProcessingNewUserGesture;
99 } 99 }
100 100
101 ASSERT(isDefinite(s_state)); 101 ASSERT(isDefinite(s_state));
102 } 102 }
103 103
104 UserGestureIndicator::~UserGestureIndicator() 104 UserGestureIndicator::~UserGestureIndicator()
105 { 105 {
106 s_state = m_previousState; 106 s_state = m_previousState;
107 if (s_topmostIndicator == this) 107 if (s_topmostIndicator == this)
108 s_topmostIndicator = 0; 108 s_topmostIndicator = 0;
109 ASSERT(isDefinite(s_state)); 109 ASSERT(isDefinite(s_state));
110 } 110 }
111 111
112 bool UserGestureIndicator::processingUserGesture() 112 bool UserGestureIndicator::processingUserGesture()
113 { 113 {
114 return s_topmostIndicator && static_cast<GestureToken*>(s_topmostIndicator-> currentToken())->hasGestures() && s_state == DefinitelyProcessingUserGesture; 114 return s_topmostIndicator && static_cast<GestureToken*>(s_topmostIndicator-> currentToken())->hasGestures() && s_state == DefinitelyProcessingNewUserGesture;
115 } 115 }
116 116
117 bool UserGestureIndicator::consumeUserGesture() 117 bool UserGestureIndicator::consumeUserGesture()
118 { 118 {
119 if (!s_topmostIndicator) 119 if (!s_topmostIndicator)
120 return false; 120 return false;
121 return static_cast<GestureToken*>(s_topmostIndicator->currentToken())->consu meGesture(); 121 return static_cast<GestureToken*>(s_topmostIndicator->currentToken())->consu meGesture();
122 } 122 }
123 123
124 UserGestureIndicator::Token* UserGestureIndicator::currentToken() 124 UserGestureIndicator::Token* UserGestureIndicator::currentToken()
125 { 125 {
126 if (!s_topmostIndicator) 126 if (!s_topmostIndicator)
127 return 0; 127 return 0;
128 return s_topmostIndicator->m_token.get(); 128 return s_topmostIndicator->m_token.get();
129 } 129 }
130 130
131 } 131 }
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