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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 COMPONENTS_SERVICES_APP_SERVICE_PUBLIC_CPP_PREFERRED_APPS_IMPL_H_
#define COMPONENTS_SERVICES_APP_SERVICE_PUBLIC_CPP_PREFERRED_APPS_IMPL_H_
#include <map>
#include "base/containers/queue.h"
#include "base/files/file_path.h"
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/sequence_checker.h"
#include "base/task/sequenced_task_runner.h"
#include "components/services/app_service/public/cpp/app_types.h"
#include "components/services/app_service/public/cpp/intent.h"
#include "components/services/app_service/public/cpp/intent_filter.h"
#include "components/services/app_service/public/cpp/preferred_app.h"
#include "components/services/app_service/public/cpp/preferred_apps_list.h"
#include "components/services/app_service/public/cpp/preferred_apps_list_handle.h"
namespace apps {
class AppServiceMojomImpl;
class AppServiceProxyPreferredAppsTest;
// The implementation of the preferred apps to manage the PreferredAppsList.
class PreferredAppsImpl {
public:
class Host {
public:
Host() = default;
Host(const Host&) = delete;
Host& operator=(const Host&) = delete;
~Host() = default;
// Notifies the host that the supported links preference for a particular
// `app_id` was enabled/disabled. Used by the host to notify the app
// publisher (if any) of the change.
virtual void OnSupportedLinksPreferenceChanged(const std::string& app_id,
bool open_in_app) = 0;
};
PreferredAppsImpl(
Host* host,
const base::FilePath& profile_dir,
base::OnceClosure read_completed_for_testing = base::OnceClosure(),
base::OnceClosure write_completed_for_testing = base::OnceClosure());
PreferredAppsImpl(const PreferredAppsImpl&) = delete;
PreferredAppsImpl& operator=(const PreferredAppsImpl&) = delete;
~PreferredAppsImpl();
void RemovePreferredApp(const std::string& app_id);
void SetSupportedLinksPreference(const std::string& app_id,
IntentFilters all_link_filters);
void RemoveSupportedLinksPreference(const std::string& app_id);
PreferredAppsListHandle& preferred_apps_list() {
return preferred_apps_list_;
}
private:
friend AppServiceMojomImpl;
friend class AppServiceProxyPreferredAppsTest;
// Initialize the preferred apps from disk.
void InitializePreferredApps();
// Write the preferred apps to a json file.
void WriteToJSON(const base::FilePath& profile_dir,
const apps::PreferredAppsList& preferred_apps);
void WriteCompleted();
void ReadFromJSON(const base::FilePath& profile_dir);
void ReadCompleted(std::string preferred_apps_string);
// Runs |task| after the PreferredAppsList is fully initialized. |task| will
// be run immediately if preferred apps are already initialized.
void RunAfterPreferredAppsReady(base::OnceClosure task);
void RemovePreferredAppImpl(const std::string& app_id);
void SetSupportedLinksPreferenceImpl(const std::string& app_id,
IntentFilters all_link_filters);
void RemoveSupportedLinksPreferenceImpl(const std::string& app_id);
// `host_` owns `this`.
raw_ptr<Host> host_;
PreferredAppsList preferred_apps_list_;
base::FilePath profile_dir_;
// True if need to write preferred apps to file after the current write is
// completed.
bool should_write_preferred_apps_to_file_ = false;
// True if it is currently writing preferred apps to file.
bool writing_preferred_apps_ = false;
// Task runner where the file operations takes place. This is to make sure the
// write operation will be operated in sequence.
scoped_refptr<base::SequencedTaskRunner> const task_runner_;
base::OnceClosure read_completed_for_testing_;
base::OnceClosure write_completed_for_testing_;
base::queue<base::OnceClosure> pending_preferred_apps_tasks_;
SEQUENCE_CHECKER(sequence_checker_);
base::WeakPtrFactory<PreferredAppsImpl> weak_ptr_factory_{this};
};
} // namespace apps
#endif // COMPONENTS_SERVICES_APP_SERVICE_PUBLIC_CPP_PREFERRED_APPS_IMPL_H_
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