Implement memory-persistent registration

content/browser/service_worker/service_worker_storage.h

+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_STORAGE_H_
+#define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_STORAGE_H_
+
+#include <map>
+
+#include "base/bind.h"
+#include "base/files/file_path.h"
+#include "base/gtest_prod_util.h"
+#include "base/memory/scoped_vector.h"
+#include "content/browser/service_worker/service_worker_registration_status.h"
+#include "content/common/content_export.h"
+#include "url/gurl.h"
+
+namespace quota {
+class QuotaManagerProxy;
+}
+
+namespace content {
+
+class ServiceWorkerRegistration;
+class ServiceWorkerRegisterJob;
+
+// This class provides an interface to load registration data and
+// instantiate ServiceWorkerRegistration objects. Any asynchronous
+// operations are run through instances of ServiceWorkerRegisterJob.
+class CONTENT_EXPORT ServiceWorkerStorage {
+ public:
+  ServiceWorkerStorage(const base::FilePath& path,
+                       quota::QuotaManagerProxy* quota_manager_proxy);
+  ~ServiceWorkerStorage();
+
+  typedef base::Callback<void(ServiceWorkerRegistrationStatus status,
+                              const scoped_refptr<ServiceWorkerRegistration>&
+                                  registration)> RegistrationCallback;
+  typedef base::Callback<
+      void(ServiceWorkerRegistrationStatus status)> UnregistrationCallback;
+
+  void FindRegistrationForDocument(const GURL& document_url,
+                                   const RegistrationCallback& callback);
+  void FindRegistrationForPattern(const GURL& pattern,
+                                  const RegistrationCallback& callback);
+
+  void Register(const GURL& pattern,
+                const GURL& script_url,
+                const RegistrationCallback& callback);
+
+  void Unregister(const GURL& pattern, const UnregistrationCallback& callback);
+
+ private:
+  friend class ServiceWorkerRegisterJob;
+  FRIEND_TEST_ALL_PREFIXES(ServiceWorkerStorageTest, PatternMatches);
+
+  typedef std::map<GURL, scoped_refptr<ServiceWorkerRegistration> >
+      PatternToRegistrationMap;
+  typedef ScopedVector<ServiceWorkerRegisterJob> RegistrationJobList;
+
+  // TODO(alecflett): These are temporary internal methods providing
+  // synchronous in-memory registration. Eventually these will be
+  // replaced by asynchronous methods that persist registration to disk.
+  scoped_refptr<ServiceWorkerRegistration> RegisterInternal(
+      const GURL& pattern,
+      const GURL& script_url);
+  void UnregisterInternal(const GURL& pattern);
+  static bool PatternMatches(const GURL& pattern, const GURL& script_url);
+
+  // Jobs are removed whenever they are finished or canceled.
+  void EraseJob(ServiceWorkerRegisterJob* job);
+
+  // Called at ServiceWorkerRegisterJob completion.
+  void RegisterComplete(const RegistrationCallback& callback,
+                        ServiceWorkerRegisterJob* job,
+                        ServiceWorkerRegistrationStatus status,
+                        ServiceWorkerRegistration* registration);
+
+  // Called at ServiceWorkerRegisterJob completion.
+  void UnregisterComplete(const UnregistrationCallback& callback,
+                          ServiceWorkerRegisterJob* job,
+                          ServiceWorkerRegistrationStatus status,
+                          ServiceWorkerRegistration* registration);
+
+  // This is the in-memory registration. Eventually the registration will be
+  // persisted to disk.
+  // A list of currently running jobs. This is a temporary structure until we
+  // start managing overlapping registrations explicitly.
+  RegistrationJobList registration_jobs_;
+
+  // in-memory map, to eventually be replaced with persistence
+  PatternToRegistrationMap registration_by_pattern_;
+  scoped_refptr<quota::QuotaManagerProxy> quota_manager_proxy_;
+  base::FilePath path_;
+  base::WeakPtrFactory<ServiceWorkerStorage> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(ServiceWorkerStorage);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_STORAGE_H_