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// Copyright 2017 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_documents_provider_watcher_manager.h"
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "base/functional/bind.h"
#include "chrome/browser/ash/arc/fileapi/arc_documents_provider_root.h"
#include "chrome/browser/ash/arc/fileapi/arc_documents_provider_root_map.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;
using storage::FileSystemURL;
namespace arc {
namespace {
void OnAddWatcherOnUIThread(storage::WatcherManager::StatusCallback callback,
base::File::Error result) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
content::GetIOThreadTaskRunner({})->PostTask(
FROM_HERE, base::BindOnce(std::move(callback), result));
}
void OnRemoveWatcherOnUIThread(storage::WatcherManager::StatusCallback callback,
base::File::Error result) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
content::GetIOThreadTaskRunner({})->PostTask(
FROM_HERE, base::BindOnce(std::move(callback), result));
}
void OnNotificationOnUIThread(
storage::WatcherManager::NotificationCallback notification_callback,
ArcDocumentsProviderRoot::ChangeType change_type) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
content::GetIOThreadTaskRunner({})->PostTask(
FROM_HERE, base::BindOnce(std::move(notification_callback), change_type));
}
void AddWatcherOnUIThread(
const storage::FileSystemURL& url,
storage::WatcherManager::StatusCallback callback,
storage::WatcherManager::NotificationCallback notification_callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
ArcDocumentsProviderRootMap* roots =
ArcDocumentsProviderRootMap::GetForArcBrowserContext();
if (!roots) {
OnAddWatcherOnUIThread(std::move(callback),
base::File::FILE_ERROR_SECURITY);
return;
}
base::FilePath path;
ArcDocumentsProviderRoot* root = roots->ParseAndLookup(url, &path);
if (!root) {
OnAddWatcherOnUIThread(std::move(callback),
base::File::FILE_ERROR_NOT_FOUND);
return;
}
root->AddWatcher(
path,
base::BindRepeating(&OnNotificationOnUIThread,
std::move(notification_callback)),
base::BindOnce(&OnAddWatcherOnUIThread, std::move(callback)));
}
void RemoveWatcherOnUIThread(
const storage::FileSystemURL& url,
ArcDocumentsProviderRoot::WatcherStatusCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
ArcDocumentsProviderRootMap* roots =
ArcDocumentsProviderRootMap::GetForArcBrowserContext();
if (!roots) {
OnRemoveWatcherOnUIThread(std::move(callback),
base::File::FILE_ERROR_SECURITY);
return;
}
base::FilePath path;
ArcDocumentsProviderRoot* root = roots->ParseAndLookup(url, &path);
if (!root) {
OnRemoveWatcherOnUIThread(std::move(callback),
base::File::FILE_ERROR_NOT_FOUND);
return;
}
root->RemoveWatcher(
path, base::BindOnce(&OnRemoveWatcherOnUIThread, std::move(callback)));
}
} // namespace
ArcDocumentsProviderWatcherManager::ArcDocumentsProviderWatcherManager() =
default;
ArcDocumentsProviderWatcherManager::~ArcDocumentsProviderWatcherManager() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
}
void ArcDocumentsProviderWatcherManager::AddWatcher(
const FileSystemURL& url,
bool recursive,
StatusCallback callback,
NotificationCallback notification_callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
if (recursive) {
// Recursive watching is not supported.
std::move(callback).Run(base::File::FILE_ERROR_INVALID_OPERATION);
return;
}
content::GetUIThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(
&AddWatcherOnUIThread, url,
base::BindOnce(&ArcDocumentsProviderWatcherManager::OnAddWatcher,
weak_ptr_factory_.GetWeakPtr(), std::move(callback)),
base::BindRepeating(
&ArcDocumentsProviderWatcherManager::OnNotification,
weak_ptr_factory_.GetWeakPtr(),
std::move(notification_callback))));
}
void ArcDocumentsProviderWatcherManager::RemoveWatcher(
const FileSystemURL& url,
bool recursive,
StatusCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
if (recursive) {
// Recursive watching is not supported.
std::move(callback).Run(base::File::FILE_ERROR_INVALID_OPERATION);
return;
}
content::GetUIThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(
&RemoveWatcherOnUIThread, url,
base::BindOnce(&ArcDocumentsProviderWatcherManager::OnRemoveWatcher,
weak_ptr_factory_.GetWeakPtr(), std::move(callback))));
}
void ArcDocumentsProviderWatcherManager::OnAddWatcher(
StatusCallback callback,
base::File::Error result) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
std::move(callback).Run(result);
}
void ArcDocumentsProviderWatcherManager::OnRemoveWatcher(
StatusCallback callback,
base::File::Error result) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
std::move(callback).Run(result);
}
void ArcDocumentsProviderWatcherManager::OnNotification(
NotificationCallback notification_callback,
ChangeType change_type) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
std::move(notification_callback).Run(change_type);
}
} // namespace arc
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