mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
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 -*- */
|
|
/* vim:set ts=2 sw=2 sts=2 et cindent: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "AudioNode.h"
|
|
#include "AudioContext.h"
|
|
#include "nsContentUtils.h"
|
|
#include "mozilla/ErrorResult.h"
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
template <typename T>
|
|
static void
|
|
TraverseElements(nsCycleCollectionTraversalCallback& cb,
|
|
const nsTArray<T>& array,
|
|
const char* name)
|
|
{
|
|
for (uint32_t i = 0, length = array.Length(); i < length; ++i) {
|
|
NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, name);
|
|
AudioNode* node = array[i].get();
|
|
cb.NoteXPCOMChild(node);
|
|
}
|
|
}
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_CLASS(AudioNode)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(AudioNode)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(mContext)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSTARRAY(mInputs)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSTARRAY(mOutputs)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(AudioNode)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_MEMBER(mContext, AudioContext)
|
|
TraverseElements(cb, tmp->mInputs, "mInputs[i]");
|
|
TraverseElements(cb, tmp->mOutputs, "mOutputs[i]");
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(AudioNode)
|
|
|
|
NS_IMPL_CYCLE_COLLECTING_ADDREF(AudioNode)
|
|
NS_IMPL_CYCLE_COLLECTING_RELEASE(AudioNode)
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(AudioNode)
|
|
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
|
|
NS_INTERFACE_MAP_ENTRY(nsISupports)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
AudioNode::AudioNode(AudioContext* aContext)
|
|
: mContext(aContext)
|
|
{
|
|
MOZ_ASSERT(aContext);
|
|
SetIsDOMBinding();
|
|
}
|
|
|
|
void
|
|
AudioNode::Connect(AudioNode& aDestination, uint32_t aOutput,
|
|
uint32_t aInput, ErrorResult& aRv)
|
|
{
|
|
if (aOutput >= MaxNumberOfOutputs() ||
|
|
aInput >= aDestination.MaxNumberOfInputs()) {
|
|
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
|
|
return;
|
|
}
|
|
|
|
if (Context() != aDestination.Context()) {
|
|
aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
|
|
return;
|
|
}
|
|
|
|
// XXX handle cycle detection per spec
|
|
|
|
Output output(&aDestination, aInput);
|
|
mOutputs.EnsureLengthAtLeast(aOutput + 1);
|
|
mOutputs.ReplaceElementAt(aOutput, output);
|
|
Input input(this, aOutput);
|
|
aDestination.mInputs.EnsureLengthAtLeast(aInput + 1);
|
|
aDestination.mInputs.ReplaceElementAt(aInput, input);
|
|
}
|
|
|
|
void
|
|
AudioNode::Disconnect(uint32_t aOutput, ErrorResult& aRv)
|
|
{
|
|
if (aOutput >= NumberOfOutputs()) {
|
|
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
|
|
return;
|
|
}
|
|
|
|
// We do a copy of the objects to AddRef source and destination
|
|
// objects so that they don't go away before we're done here.
|
|
const Output output = mOutputs[aOutput];
|
|
if (!output) {
|
|
aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
|
|
return;
|
|
}
|
|
const Input input = output.mDestination->mInputs[output.mInput];
|
|
|
|
MOZ_ASSERT(Context() == output.mDestination->Context());
|
|
MOZ_ASSERT(aOutput == input.mOutput);
|
|
|
|
if (!input || input.mSource != this) {
|
|
aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
|
|
return;
|
|
}
|
|
|
|
output.mDestination->mInputs.ReplaceElementAt(output.mInput, Input());
|
|
mOutputs.ReplaceElementAt(input.mOutput, Output());
|
|
}
|
|
|
|
}
|
|
}
|
|
|