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1 /* | 1 /* |
2 * Copyright (C) 2012, Google Inc. All rights reserved. | 2 * Copyright (C) 2012, Google 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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21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
23 */ | 23 */ |
24 | 24 |
25 #include "config.h" | 25 #include "config.h" |
26 | 26 |
27 #if ENABLE(WEB_AUDIO) | 27 #if ENABLE(WEB_AUDIO) |
28 | 28 |
29 #include "modules/webaudio/AudioScheduledSourceNode.h" | 29 #include "modules/webaudio/AudioScheduledSourceNode.h" |
30 | 30 |
31 #include "bindings/v8/ExceptionMessages.h" | |
32 #include "bindings/v8/ExceptionState.h" | 31 #include "bindings/v8/ExceptionState.h" |
33 #include "core/dom/ExceptionCode.h" | 32 #include "core/dom/ExceptionCode.h" |
34 #include "core/events/Event.h" | 33 #include "core/events/Event.h" |
35 #include "platform/audio/AudioUtilities.h" | 34 #include "platform/audio/AudioUtilities.h" |
36 #include "modules/webaudio/AudioContext.h" | 35 #include "modules/webaudio/AudioContext.h" |
37 #include <algorithm> | 36 #include <algorithm> |
38 #include "wtf/MathExtras.h" | 37 #include "wtf/MathExtras.h" |
39 | 38 |
40 using namespace std; | 39 using namespace std; |
41 | 40 |
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139 } | 138 } |
140 | 139 |
141 | 140 |
142 void AudioScheduledSourceNode::start(double when, ExceptionState& exceptionState
) | 141 void AudioScheduledSourceNode::start(double when, ExceptionState& exceptionState
) |
143 { | 142 { |
144 ASSERT(isMainThread()); | 143 ASSERT(isMainThread()); |
145 | 144 |
146 if (m_playbackState != UNSCHEDULED_STATE) { | 145 if (m_playbackState != UNSCHEDULED_STATE) { |
147 exceptionState.throwDOMException( | 146 exceptionState.throwDOMException( |
148 InvalidStateError, | 147 InvalidStateError, |
149 ExceptionMessages::failedToExecute( | 148 "cannot call start more than once."); |
150 "start", | |
151 "OscillatorNode", | |
152 "cannot call start more than once.")); | |
153 return; | 149 return; |
154 } | 150 } |
155 | 151 |
156 m_startTime = when; | 152 m_startTime = when; |
157 m_playbackState = SCHEDULED_STATE; | 153 m_playbackState = SCHEDULED_STATE; |
158 } | 154 } |
159 | 155 |
160 void AudioScheduledSourceNode::stop(double when, ExceptionState& exceptionState) | 156 void AudioScheduledSourceNode::stop(double when, ExceptionState& exceptionState) |
161 { | 157 { |
162 ASSERT(isMainThread()); | 158 ASSERT(isMainThread()); |
163 | 159 |
164 if (m_stopCalled) { | 160 if (m_stopCalled) { |
165 exceptionState.throwDOMException( | 161 exceptionState.throwDOMException( |
166 InvalidStateError, | 162 InvalidStateError, |
167 ExceptionMessages::failedToExecute( | 163 "cannot call stop more than once."); |
168 "stop", | |
169 "OscillatorNode", | |
170 "cannot call stop more than once.")); | |
171 } else if (m_playbackState == UNSCHEDULED_STATE) { | 164 } else if (m_playbackState == UNSCHEDULED_STATE) { |
172 exceptionState.throwDOMException( | 165 exceptionState.throwDOMException( |
173 InvalidStateError, | 166 InvalidStateError, |
174 ExceptionMessages::failedToExecute( | 167 "cannot call stop without calling start first."); |
175 "stop", | |
176 "OscillatorNode", | |
177 "cannot call stop without calling start first.")); | |
178 } else { | 168 } else { |
179 // This can only happen from the SCHEDULED_STATE or PLAYING_STATE. The U
NSCHEDULED_STATE is | 169 // This can only happen from the SCHEDULED_STATE or PLAYING_STATE. The U
NSCHEDULED_STATE is |
180 // handled above, and the FINISHED_STATE is only reachable after stop()
has been called, and | 170 // handled above, and the FINISHED_STATE is only reachable after stop()
has been called, and |
181 // hence m_stopCalled is true. But that case is handled above. | 171 // hence m_stopCalled is true. But that case is handled above. |
182 when = max(0.0, when); | 172 when = max(0.0, when); |
183 m_endTime = when; | 173 m_endTime = when; |
184 m_stopCalled = true; | 174 m_stopCalled = true; |
185 } | 175 } |
186 } | 176 } |
187 | 177 |
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222 void AudioScheduledSourceNode::NotifyEndedTask::notifyEnded() | 212 void AudioScheduledSourceNode::NotifyEndedTask::notifyEnded() |
223 { | 213 { |
224 RefPtr<Event> event = Event::create(EventTypeNames::ended); | 214 RefPtr<Event> event = Event::create(EventTypeNames::ended); |
225 event->setTarget(m_scheduledNode); | 215 event->setTarget(m_scheduledNode); |
226 m_scheduledNode->dispatchEvent(event.get()); | 216 m_scheduledNode->dispatchEvent(event.get()); |
227 } | 217 } |
228 | 218 |
229 } // namespace WebCore | 219 } // namespace WebCore |
230 | 220 |
231 #endif // ENABLE(WEB_AUDIO) | 221 #endif // ENABLE(WEB_AUDIO) |
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