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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_FILE_SYSTEM_ACCESS_FILE_SYSTEM_ACCESS_LOCAL_PATH_WATCHER_H_
#define CONTENT_BROWSER_FILE_SYSTEM_ACCESS_FILE_SYSTEM_ACCESS_LOCAL_PATH_WATCHER_H_
#include "base/thread_annotations.h"
#include "base/threading/sequence_bound.h"
#include "base/types/pass_key.h"
#include "content/browser/file_system_access/file_path_watcher/file_path_watcher.h"
#include "content/browser/file_system_access/file_system_access_change_source.h"
#include "content/browser/file_system_access/file_system_access_watch_scope.h"
namespace content {
class FileSystemAccessWatcherManager;
// Watches a local file path and reports changes to its observers.
// This class must constructed, used, and destroyed on the same sequence.
class FileSystemAccessLocalPathWatcher : public FileSystemAccessChangeSource {
public:
FileSystemAccessLocalPathWatcher(
FileSystemAccessWatchScope scope,
scoped_refptr<storage::FileSystemContext> file_system_context,
base::PassKey<FileSystemAccessWatcherManager> pass_key);
FileSystemAccessLocalPathWatcher(const FileSystemAccessLocalPathWatcher&) =
delete;
FileSystemAccessLocalPathWatcher& operator=(
const FileSystemAccessLocalPathWatcher&) = delete;
~FileSystemAccessLocalPathWatcher() override;
// FileSystemAccessChangeSource:
void Initialize(
base::OnceCallback<void(blink::mojom::FileSystemAccessErrorPtr)>
on_source_initialized) override;
size_t current_usage() const override;
private:
void OnFilePathChanged(const FilePathWatcher::ChangeInfo& change_info,
const base::FilePath& changed_path,
bool error);
void OnUsageChange(size_t old_usage, size_t new_usage);
size_t current_usage_ = 0;
// For directory watches this is `scope().root_url().path()`. However, for
// file watches, this is the parent directory's path.
base::FilePath watch_path_;
base::SequenceBound<FilePathWatcher> watcher_
GUARDED_BY_CONTEXT(sequence_checker_);
base::WeakPtrFactory<FileSystemAccessLocalPathWatcher> weak_factory_
GUARDED_BY_CONTEXT(sequence_checker_){this};
};
} // namespace content
#endif // CONTENT_BROWSER_FILE_SYSTEM_ACCESS_FILE_SYSTEM_ACCESS_LOCAL_PATH_WATCHER_H_
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