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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/arc/fileapi/arc_file_system_operation_runner_util.h"
#include <utility>
#include <vector>
#include "base/functional/bind.h"
#include "base/task/bind_post_task.h"
#include "chromeos/ash/experiences/arc/mojom/file_system.mojom-forward.h"
#include "chromeos/ash/experiences/arc/session/arc_service_manager.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "url/gurl.h"
using content::BrowserThread;
namespace arc {
namespace file_system_operation_runner_util {
namespace {
// TODO(crbug.com/745648): Use correct BrowserContext.
ArcFileSystemOperationRunner* GetArcFileSystemOperationRunner() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
return ArcFileSystemOperationRunner::GetForBrowserContext(
ArcServiceManager::Get()->browser_context());
}
template <typename T>
void PostToIOThread(base::OnceCallback<void(T)> callback, T result) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
content::GetIOThreadTaskRunner({})->PostTask(
FROM_HERE, base::BindOnce(std::move(callback), std::move(result)));
}
void GetFileSizeOnUIThread(const GURL& url, GetFileSizeCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
auto* runner = GetArcFileSystemOperationRunner();
if (!runner) {
DLOG(ERROR) << "ArcFileSystemOperationRunner unavailable. "
<< "File system operations are dropped.";
std::move(callback).Run(-1);
return;
}
runner->GetFileSize(url, std::move(callback));
}
void OpenFileSessionToWriteOnUIThread(const GURL& url,
OpenFileSessionToWriteCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
auto* runner = GetArcFileSystemOperationRunner();
if (!runner) {
DLOG(ERROR) << "ArcFileSystemOperationRunner unavailable. "
<< "File system operations are dropped.";
std::move(callback).Run(mojom::FileSessionPtr());
return;
}
runner->OpenFileSessionToWrite(url, std::move(callback));
}
void OpenFileSessionToReadOnUIThread(const GURL& url,
OpenFileSessionToReadCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
auto* runner = GetArcFileSystemOperationRunner();
if (!runner) {
DLOG(ERROR) << "ArcFileSystemOperationRunner unavailable. "
<< "File system operations are dropped.";
std::move(callback).Run(mojom::FileSessionPtr());
return;
}
runner->OpenFileSessionToRead(url, std::move(callback));
}
void CloseFileSessionOnUIThread(const std::string& url_id,
const CloseStatus status) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
auto* runner = GetArcFileSystemOperationRunner();
if (!runner) {
DLOG(ERROR) << "ArcFileSystemOperationRunner unavailable. "
<< "File system operations are dropped.";
return;
}
std::string message;
if (status == CloseStatus::kStatusError) {
message = "file operation exited with error";
} else if (status == CloseStatus::kStatusCancel) {
message = "file operation was cancelled";
}
runner->CloseFileSession(url_id, message);
}
} // namespace
void GetFileSizeOnIOThread(const GURL& url, GetFileSizeCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
content::GetUIThreadTaskRunner({})->PostTask(
FROM_HERE, base::BindOnce(&GetFileSizeOnUIThread, url,
base::BindOnce(&PostToIOThread<int64_t>,
std::move(callback))));
}
void OpenFileSessionToWriteOnIOThread(const GURL& url,
OpenFileSessionToWriteCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
content::GetUIThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&OpenFileSessionToWriteOnUIThread, url,
base::BindPostTask(content::GetIOThreadTaskRunner({}),
std::move(callback))));
}
void OpenFileSessionToReadOnIOThread(const GURL& url,
OpenFileSessionToReadCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
content::GetUIThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&OpenFileSessionToReadOnUIThread, url,
base::BindOnce(&PostToIOThread<mojom::FileSessionPtr>,
std::move(callback))));
}
// TODO(b/222823695): Consider using a mojo interface to disconnect remote.
void CloseFileSession(const std::string& url_id, const CloseStatus status) {
content::GetUIThreadTaskRunner({})->PostTask(
FROM_HERE, base::BindOnce(&CloseFileSessionOnUIThread, url_id, status));
}
} // namespace file_system_operation_runner_util
} // namespace arc
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