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/* 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 "mozilla/dom/PushUtil.h"
#include "mozilla/dom/UnionTypes.h" // for OwningArrayBufferViewOrArrayBuffer
namespace mozilla {
namespace dom {
/* static */ bool
PushUtil::CopyArrayBufferToArray(const ArrayBuffer& aBuffer,
nsTArray<uint8_t>& aArray)
{
MOZ_ASSERT(aArray.IsEmpty());
aBuffer.ComputeLengthAndData();
return aArray.SetCapacity(aBuffer.Length(), fallible) &&
aArray.InsertElementsAt(0, aBuffer.Data(), aBuffer.Length(), fallible);
}
/* static */ bool
PushUtil::CopyArrayBufferViewToArray(const ArrayBufferView& aView,
nsTArray<uint8_t>& aArray)
{
MOZ_ASSERT(aArray.IsEmpty());
aView.ComputeLengthAndData();
return aArray.SetCapacity(aView.Length(), fallible) &&
aArray.InsertElementsAt(0, aView.Data(), aView.Length(), fallible);
}
/* static */ bool
PushUtil::CopyBufferSourceToArray(
const OwningArrayBufferViewOrArrayBuffer& aSource, nsTArray<uint8_t>& aArray)
{
if (aSource.IsArrayBuffer()) {
return CopyArrayBufferToArray(aSource.GetAsArrayBuffer(), aArray);
}
if (aSource.IsArrayBufferView()) {
return CopyArrayBufferViewToArray(aSource.GetAsArrayBufferView(), aArray);
}
MOZ_CRASH("Uninitialized union: expected buffer or view");
}
/* static */ void
PushUtil::CopyArrayToArrayBuffer(JSContext* aCx,
const nsTArray<uint8_t>& aArray,
JS::MutableHandle<JSObject*> aValue,
ErrorResult& aRv)
{
if (aArray.IsEmpty()) {
aValue.set(nullptr);
return;
}
JS::Rooted<JSObject*> buffer(aCx, ArrayBuffer::Create(aCx,
aArray.Length(),
aArray.Elements()));
if (NS_WARN_IF(!buffer)) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
return;
}
aValue.set(buffer);
}
} // namespace dom
} // namespace mozilla
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