mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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117 lines
3.3 KiB
C++
117 lines
3.3 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 "AudioNode.h"
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#include "AudioContext.h"
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#include "nsContentUtils.h"
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#include "mozilla/ErrorResult.h"
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namespace mozilla {
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namespace dom {
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template <typename T>
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static void
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TraverseElements(nsCycleCollectionTraversalCallback& cb,
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const nsTArray<T>& array,
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const char* name)
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{
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for (uint32_t i = 0, length = array.Length(); i < length; ++i) {
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NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, name);
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AudioNode* node = array[i].get();
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cb.NoteXPCOMChild(node);
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}
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}
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NS_IMPL_CYCLE_COLLECTION_CLASS(AudioNode)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(AudioNode)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(mContext)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_NSTARRAY(mInputs)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_NSTARRAY(mOutputs)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(AudioNode)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mContext)
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TraverseElements(cb, tmp->mInputs, "mInputs[i]");
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TraverseElements(cb, tmp->mOutputs, "mOutputs[i]");
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(AudioNode)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(AudioNode)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(AudioNode)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(AudioNode)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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AudioNode::AudioNode(AudioContext* aContext)
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: mContext(aContext)
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{
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MOZ_ASSERT(aContext);
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SetIsDOMBinding();
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}
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void
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AudioNode::Connect(AudioNode& aDestination, uint32_t aOutput,
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uint32_t aInput, ErrorResult& aRv)
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{
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if (aOutput >= MaxNumberOfOutputs() ||
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aInput >= aDestination.MaxNumberOfInputs()) {
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aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
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return;
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}
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if (Context() != aDestination.Context()) {
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aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
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return;
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}
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// XXX handle cycle detection per spec
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Output output(&aDestination, aInput);
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mOutputs.EnsureLengthAtLeast(aOutput + 1);
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mOutputs.ReplaceElementAt(aOutput, output);
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Input input(this, aOutput);
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aDestination.mInputs.EnsureLengthAtLeast(aInput + 1);
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aDestination.mInputs.ReplaceElementAt(aInput, input);
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}
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void
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AudioNode::Disconnect(uint32_t aOutput, ErrorResult& aRv)
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{
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if (aOutput >= NumberOfOutputs()) {
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aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
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return;
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}
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// We do a copy of the objects to AddRef source and destination
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// objects so that they don't go away before we're done here.
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const Output output = mOutputs[aOutput];
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if (!output) {
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aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
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return;
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}
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const Input input = output.mDestination->mInputs[output.mInput];
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MOZ_ASSERT(Context() == output.mDestination->Context());
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MOZ_ASSERT(aOutput == input.mOutput);
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if (!input || input.mSource != this) {
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aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
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return;
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}
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output.mDestination->mInputs.ReplaceElementAt(output.mInput, Input());
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mOutputs.ReplaceElementAt(input.mOutput, Output());
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}
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}
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}
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