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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ASH_FILE_MANAGER_EMPTY_TRASH_IO_TASK_H_
#define CHROME_BROWSER_ASH_FILE_MANAGER_EMPTY_TRASH_IO_TASK_H_
#include <optional>
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/ash/file_manager/io_task.h"
#include "chrome/browser/ash/file_manager/trash_common_util.h"
#include "storage/browser/file_system/file_system_context.h"
#include "storage/browser/file_system/file_system_operation_runner.h"
#include "storage/browser/file_system/file_system_url.h"
class Profile;
namespace blink {
class StorageKey;
} // namespace blink
namespace file_manager::io_task {
// This class represents a task to completely empty the trash folder. An empty
// trash task will recursively iterate over the contents of the "files" and
// "info" subdirectories and remove all the files within.
// The "Empty Trash" action happens for all enabled trash locations, not just
// for one location. Therefore no sources are supplied they are identified and
// emptied accordingly. The locations which are enabled and are emptied are
// available on the outputs of the `ProgressStatus`.
//
// This follows the XDG specification
// https://specifications.freedesktop.org/trash-spec/trashspec-1.0.html
class EmptyTrashIOTask : public IOTask {
public:
EmptyTrashIOTask(
blink::StorageKey storage_key,
Profile* profile,
scoped_refptr<storage::FileSystemContext> file_system_context,
bool show_notification = true);
~EmptyTrashIOTask() override;
// Starts emptying the trash bin.
void Execute(ProgressCallback progress_callback,
CompleteCallback complete_callback) override;
// Marks the whole operation as cancelled. Under the hood, the actual ongoing
// deletion operations cannot be cancelled, and will continue until they
// finish.
void Cancel() override;
private:
// Called when a trash subdir has been removed.
void OnRemoved(size_t i, bool ok);
// Finish up and invoke the completion callback.
void Complete();
const scoped_refptr<storage::FileSystemContext> file_system_context_;
// Storage key used to construct the storage::FileSystemURLs that represent
// the various trash locations when recursively removing the trash contents.
const blink::StorageKey storage_key_;
const raw_ptr<Profile> profile_;
// Completion callback.
CompleteCallback complete_callback_;
// Number of concurrent deletion operations that have been started but that
// haven't finished yet.
int in_flight_ = 0;
base::WeakPtrFactory<EmptyTrashIOTask> weak_ptr_factory_{this};
};
} // namespace file_manager::io_task
#endif // CHROME_BROWSER_ASH_FILE_MANAGER_EMPTY_TRASH_IO_TASK_H_
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