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/*
* Copyright (C) 2010 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.
* 3. Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE 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 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.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_AUDIO_PARAM_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_AUDIO_PARAM_H_
#include <sys/types.h>
#include "base/memory/scoped_refptr.h"
#include "third_party/blink/renderer/core/typed_arrays/array_buffer_view_helpers.h"
#include "third_party/blink/renderer/core/typed_arrays/dom_typed_array.h"
#include "third_party/blink/renderer/modules/webaudio/audio_param_handler.h"
#include "third_party/blink/renderer/modules/webaudio/audio_summing_junction.h"
#include "third_party/blink/renderer/modules/webaudio/base_audio_context.h"
#include "third_party/blink/renderer/modules/webaudio/inspector_helper_mixin.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
#include "third_party/blink/renderer/platform/wtf/thread_safe_ref_counted.h"
namespace blink {
class V8AutomationRate;
// AudioParam class represents web-exposed AudioParam interface.
class AudioParam final : public ScriptWrappable, public InspectorHelperMixin {
DEFINE_WRAPPERTYPEINFO();
public:
static AudioParam* Create(
BaseAudioContext&,
const String& parent_uuid,
AudioParamHandler::AudioParamType,
double default_value,
AudioParamHandler::AutomationRate rate,
AudioParamHandler::AutomationRateMode rate_mode,
float min_value = -std::numeric_limits<float>::max(),
float max_value = std::numeric_limits<float>::max());
AudioParam(BaseAudioContext&,
const String& parent_uuid,
AudioParamHandler::AudioParamType,
double default_value,
AudioParamHandler::AutomationRate rate,
AudioParamHandler::AutomationRateMode rate_mode,
float min,
float max);
~AudioParam() override;
void Trace(Visitor*) const override;
// InspectorHelperMixin: an AudioParam is always owned by an AudioNode so
// its notification is done by the parent AudioNode.
void ReportDidCreate() override {}
void ReportWillBeDestroyed() override {}
// https://webaudio.github.io/web-audio-api/#AudioParam
float value() const;
void setValue(float, ExceptionState&);
void setValue(float);
V8AutomationRate automationRate() const;
void setAutomationRate(const V8AutomationRate&, ExceptionState&);
float defaultValue() const;
float minValue() const;
float maxValue() const;
AudioParam* setValueAtTime(float value, double time, ExceptionState&);
AudioParam* linearRampToValueAtTime(float value,
double time,
ExceptionState&);
AudioParam* exponentialRampToValueAtTime(float value,
double time,
ExceptionState&);
AudioParam* setTargetAtTime(float target,
double time,
double time_constant,
ExceptionState&);
AudioParam* setValueCurveAtTime(const Vector<float>& curve,
double time,
double duration,
ExceptionState&);
AudioParam* cancelScheduledValues(double start_time, ExceptionState&);
AudioParam* cancelAndHoldAtTime(double start_time, ExceptionState&);
String GetParamName() const { return Handler().GetParamName(); }
void SetCustomParamName(const String name);
// `Handler()` always returns a valid object.
AudioParamHandler& Handler() const { return *handler_; }
// `Context()` always returns a valid object.
BaseAudioContext* Context() const { return context_.Get(); }
private:
void WarnIfOutsideRange(const String& param_methd, float value);
scoped_refptr<AudioParamHandler> handler_;
Member<BaseAudioContext> context_;
scoped_refptr<DeferredTaskHandler> deferred_task_handler_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_AUDIO_PARAM_H_
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