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/*
* Copyright (C) 2012, 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
*/
#include "third_party/blink/renderer/modules/webaudio/audio_scheduled_source_node.h"
#include <algorithm>
#include "third_party/blink/public/platform/task_type.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/modules/event_modules.h"
#include "third_party/blink/renderer/modules/webaudio/base_audio_context.h"
#include "third_party/blink/renderer/platform/audio/audio_utilities.h"
#include "third_party/blink/renderer/platform/bindings/exception_messages.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "third_party/blink/renderer/platform/scheduler/public/post_cross_thread_task.h"
#include "third_party/blink/renderer/platform/wtf/cross_thread_functional.h"
#include "third_party/blink/renderer/platform/wtf/math_extras.h"
namespace blink {
AudioScheduledSourceNode::AudioScheduledSourceNode(BaseAudioContext& context)
: AudioNode(context), ActiveScriptWrappable<AudioScheduledSourceNode>({}) {}
AudioScheduledSourceHandler&
AudioScheduledSourceNode::GetAudioScheduledSourceHandler() const {
return static_cast<AudioScheduledSourceHandler&>(Handler());
}
void AudioScheduledSourceNode::start(ExceptionState& exception_state) {
start(0, exception_state);
}
void AudioScheduledSourceNode::start(double when,
ExceptionState& exception_state) {
GetAudioScheduledSourceHandler().Start(when, exception_state);
}
void AudioScheduledSourceNode::stop(ExceptionState& exception_state) {
stop(0, exception_state);
}
void AudioScheduledSourceNode::stop(double when,
ExceptionState& exception_state) {
GetAudioScheduledSourceHandler().Stop(when, exception_state);
}
EventListener* AudioScheduledSourceNode::onended() {
return GetAttributeEventListener(event_type_names::kEnded);
}
void AudioScheduledSourceNode::setOnended(EventListener* listener) {
SetAttributeEventListener(event_type_names::kEnded, listener);
}
bool AudioScheduledSourceNode::HasPendingActivity() const {
// To avoid the leak, a node should be collected regardless of its
// playback state if the context is closed.
if (context()->ContextState() == V8AudioContextState::Enum::kClosed) {
return false;
}
// If a node is scheduled or playing, do not collect the node
// prematurely even its reference is out of scope. If the onended
// event has not yet fired, we still have activity pending too.
return ContainsHandler() &&
(GetAudioScheduledSourceHandler().IsPlayingOrScheduled() ||
GetAudioScheduledSourceHandler().IsOnEndedNotificationPending());
}
} // namespace blink
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