gecko-dev/dom/simpledb/SDBResults.cpp

55 строки
1.3 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 "SDBResults.h"
#include "nsContentUtils.h"
namespace mozilla {
namespace dom {
SDBResult::SDBResult(const nsACString& aData) : mData(aData) {}
NS_IMPL_ISUPPORTS(SDBResult, nsISDBResult)
NS_IMETHODIMP
SDBResult::GetAsArray(uint32_t* aDataLen, uint8_t** aData) {
MOZ_ASSERT(aDataLen);
MOZ_ASSERT(aData);
if (mData.IsEmpty()) {
*aDataLen = 0;
*aData = nullptr;
return NS_OK;
}
uint32_t length = mData.Length();
uint8_t* data = static_cast<uint8_t*>(moz_xmalloc(length * sizeof(uint8_t)));
memcpy(data, mData.BeginReading(), length * sizeof(uint8_t));
*aDataLen = length;
*aData = data;
return NS_OK;
}
NS_IMETHODIMP
SDBResult::GetAsArrayBuffer(JSContext* aCx, JS::MutableHandleValue _retval) {
JS::Rooted<JSObject*> arrayBuffer(aCx);
nsresult rv =
nsContentUtils::CreateArrayBuffer(aCx, mData, arrayBuffer.address());
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
_retval.setObject(*arrayBuffer);
return NS_OK;
}
} // namespace dom
} // namespace mozilla