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618903f6dd
We need this in order to update the MediaStreamGraph thread when an AudioParam changes. This enables each AudioParam to be registered with a callback from its owner node, so that the owner node can have custom processing code for each AudioParam's mutation.
53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "AudioParam.h"
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#include "nsContentUtils.h"
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#include "nsIDOMWindow.h"
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#include "mozilla/ErrorResult.h"
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#include "mozilla/dom/AudioParamBinding.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_1(AudioParam, mNode)
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NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(AudioParam, AddRef)
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NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(AudioParam, Release)
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AudioParam::AudioParam(AudioNode* aNode,
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AudioParam::CallbackType aCallback,
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float aDefaultValue,
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float aMinValue,
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float aMaxValue)
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: AudioParamTimeline(aDefaultValue)
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, mNode(aNode)
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, mCallback(aCallback)
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, mDefaultValue(aDefaultValue)
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, mMinValue(aMinValue)
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, mMaxValue(aMaxValue)
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{
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MOZ_ASSERT(aDefaultValue >= aMinValue);
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MOZ_ASSERT(aDefaultValue <= aMaxValue);
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MOZ_ASSERT(aMinValue < aMaxValue);
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SetIsDOMBinding();
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}
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AudioParam::~AudioParam()
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{
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}
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JSObject*
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AudioParam::WrapObject(JSContext* aCx, JSObject* aScope,
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bool* aTriedToWrap)
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{
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return AudioParamBinding::Wrap(aCx, aScope, this, aTriedToWrap);
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}
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}
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}
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