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// Copyright 2014 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/file_system_provider/fileapi/watcher_manager.h"
#include "base/files/file.h"
#include "base/functional/bind.h"
#include "chrome/browser/ash/file_system_provider/mount_path_util.h"
#include "chrome/browser/ash/file_system_provider/provided_file_system_info.h"
#include "chrome/browser/ash/file_system_provider/provided_file_system_interface.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "storage/browser/file_system/file_system_url.h"
using content::BrowserThread;
namespace ash::file_system_provider {
namespace {
using StatusCallback = storage::WatcherManager::StatusCallback;
using NotificationCallback = storage::WatcherManager::NotificationCallback;
using ChangeType = storage::WatcherManager::ChangeType;
void CallStatusCallbackOnIOThread(StatusCallback callback,
base::File::Error error) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
content::GetIOThreadTaskRunner({})->PostTask(
FROM_HERE, base::BindOnce(std::move(callback), error));
}
void CallNotificationCallbackOnIOThread(NotificationCallback callback,
ChangeType type) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
content::GetIOThreadTaskRunner({})->PostTask(
FROM_HERE, base::BindOnce(std::move(callback), type));
}
void AddWatcherOnUIThread(const storage::FileSystemURL& url,
bool recursive,
StatusCallback callback,
NotificationCallback notification_callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
util::FileSystemURLParser parser(url);
if (!parser.Parse()) {
std::move(callback).Run(base::File::FILE_ERROR_SECURITY);
return;
}
if (!parser.file_system()->GetFileSystemInfo().watchable()) {
std::move(callback).Run(base::File::FILE_ERROR_INVALID_OPERATION);
return;
}
parser.file_system()->AddWatcher(url.origin().GetURL(), parser.file_path(),
recursive, /*persistent=*/false,
std::move(callback),
std::move(notification_callback));
}
void RemoveWatcherOnUIThread(const storage::FileSystemURL& url,
bool recursive,
StatusCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
util::FileSystemURLParser parser(url);
if (!parser.Parse()) {
std::move(callback).Run(base::File::FILE_ERROR_SECURITY);
return;
}
if (!parser.file_system()->GetFileSystemInfo().watchable()) {
std::move(callback).Run(base::File::FILE_ERROR_INVALID_OPERATION);
return;
}
parser.file_system()->RemoveWatcher(url.origin().GetURL(), parser.file_path(),
recursive, std::move(callback));
}
} // namespace
WatcherManager::WatcherManager() = default;
WatcherManager::~WatcherManager() = default;
void WatcherManager::AddWatcher(const storage::FileSystemURL& url,
bool recursive,
StatusCallback callback,
NotificationCallback notification_callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
content::GetUIThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(
&AddWatcherOnUIThread, url, recursive,
base::BindOnce(&CallStatusCallbackOnIOThread, std::move(callback)),
base::BindRepeating(&CallNotificationCallbackOnIOThread,
std::move(notification_callback))));
}
void WatcherManager::RemoveWatcher(const storage::FileSystemURL& url,
bool recursive,
StatusCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
content::GetUIThreadTaskRunner({})->PostTask(
FROM_HERE, base::BindOnce(&RemoveWatcherOnUIThread, url, recursive,
base::BindOnce(&CallStatusCallbackOnIOThread,
std::move(callback))));
}
} // namespace ash::file_system_provider
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