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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/chromeos/file_system_provider/operations/write_file.h"
#include <utility>
#include "base/trace_event/trace_event.h"
#include "base/values.h"
#include "chrome/common/extensions/api/file_system_provider.h"
#include "chrome/common/extensions/api/file_system_provider_internal.h"
namespace chromeos {
namespace file_system_provider {
namespace operations {
WriteFile::WriteFile(extensions::EventRouter* event_router,
const ProvidedFileSystemInfo& file_system_info,
int file_handle,
scoped_refptr<net::IOBuffer> buffer,
int64_t offset,
int length,
const storage::AsyncFileUtil::StatusCallback& callback)
: Operation(event_router, file_system_info),
file_handle_(file_handle),
buffer_(buffer),
offset_(offset),
length_(length),
callback_(callback) {}
WriteFile::~WriteFile() {
}
bool WriteFile::Execute(int request_id) {
TRACE_EVENT0("file_system_provider", "WriteFile::Execute");
using extensions::api::file_system_provider::WriteFileRequestedOptions;
if (!file_system_info_.writable())
return false;
WriteFileRequestedOptions options;
options.file_system_id = file_system_info_.file_system_id();
options.request_id = request_id;
options.open_request_id = file_handle_;
options.offset = offset_;
// Length is not passed directly since it can be accessed via data.byteLength.
// Set the data directly on base::Value() to avoid an extra string copy.
DCHECK(buffer_.get());
scoped_ptr<base::DictionaryValue> options_as_value = options.ToValue();
options_as_value->Set(
"data",
base::BinaryValue::CreateWithCopiedBuffer(buffer_->data(), length_));
scoped_ptr<base::ListValue> event_args(new base::ListValue);
event_args->Append(options_as_value.release());
return SendEvent(
request_id,
extensions::events::FILE_SYSTEM_PROVIDER_ON_WRITE_FILE_REQUESTED,
extensions::api::file_system_provider::OnWriteFileRequested::kEventName,
std::move(event_args));
}
void WriteFile::OnSuccess(int /* request_id */,
scoped_ptr<RequestValue> /* result */,
bool /* has_more */) {
TRACE_EVENT0("file_system_provider", "WriteFile::OnSuccess");
callback_.Run(base::File::FILE_OK);
}
void WriteFile::OnError(int /* request_id */,
scoped_ptr<RequestValue> /* result */,
base::File::Error error) {
TRACE_EVENT0("file_system_provider", "WriteFile::OnError");
callback_.Run(error);
}
} // namespace operations
} // namespace file_system_provider
} // namespace chromeos
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