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// Copyright 2019 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_TASK_MANAGER_PROVIDERS_WORKER_TASK_PROVIDER_H_
#define CHROME_BROWSER_TASK_MANAGER_PROVIDERS_WORKER_TASK_PROVIDER_H_
#include <memory>
#include "base/containers/flat_map.h"
#include "base/scoped_multi_source_observation.h"
#include "base/scoped_observation.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_manager_observer.h"
#include "chrome/browser/profiles/profile_observer.h"
#include "chrome/browser/task_manager/providers/task_provider.h"
class ProfileManager;
namespace task_manager {
class PerProfileWorkerTaskTracker;
// This is an implementation of TaskProvider that tracks dedicated workers,
// shared workers and service workers.
//
// It doesn't directly create the tasks but instead creates an instance of
// PerProfileWorkerTaskTracker for each existing profile. These
// PerProfileWorkerTaskTracker instances are then responsible for tracking
// workers and creating/deleting tasks.
// See https://w3c.github.io/workers/ or https://w3c.github.io/ServiceWorker/
// for more details.
class WorkerTaskProvider : public TaskProvider,
public ProfileManagerObserver,
public ProfileObserver {
public:
WorkerTaskProvider();
~WorkerTaskProvider() override;
WorkerTaskProvider(const WorkerTaskProvider& other) = delete;
WorkerTaskProvider& operator=(const WorkerTaskProvider& other) = delete;
// task_manager::TaskProvider:
Task* GetTaskOfUrlRequest(int child_id, int route_id) override;
// ProfileManagerObserver:
void OnProfileAdded(Profile* profile) override;
void OnProfileManagerDestroying() override;
// ProfileObserver:
void OnOffTheRecordProfileCreated(Profile* off_the_record) override;
void OnProfileWillBeDestroyed(Profile* profile) override;
// Invoked by the PerProfileWorkerTaskTrackers when a new task is created or
// deleted.
void OnWorkerTaskAdded(Task* worker_task);
void OnWorkerTaskRemoved(Task* worker_task);
private:
// task_manager::TaskProvider:
void StartUpdating() override;
void StopUpdating() override;
base::ScopedMultiSourceObservation<Profile, ProfileObserver>
observed_profiles_{this};
base::ScopedObservation<ProfileManager, ProfileManagerObserver>
profile_manager_observation_{this};
// Observes all types of workers for a given profile.
base::flat_map<Profile*, std::unique_ptr<PerProfileWorkerTaskTracker>>
per_profile_worker_task_trackers_;
};
} // namespace task_manager
#endif // CHROME_BROWSER_TASK_MANAGER_PROVIDERS_WORKER_TASK_PROVIDER_H_
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