зеркало из https://github.com/mozilla/gecko-dev.git
67 строки
2.2 KiB
C++
67 строки
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* 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"
|
|
|
|
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
|