src/content/browser/service_worker/service_worker_register_job.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REGISTER_JOB_H_
   6 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REGISTER_JOB_H_
   7
   8 #include <vector>
   9
  10 #include "base/memory/weak_ptr.h"
  11 #include "content/browser/service_worker/embedded_worker_instance.h"
  12 #include "content/browser/service_worker/service_worker_register_job_base.h"
  13 #include "content/browser/service_worker/service_worker_registration.h"
  14 #include "content/common/service_worker/service_worker_status_code.h"
  15 #include "url/gurl.h"
  16
  17 namespace content {
  18
  19 class ServiceWorkerJobCoordinator;
  20 class ServiceWorkerStorage;
  21
  22 // Handles the initial registration of a Service Worker and the
  23 // subsequent update of existing registrations.
  24 //
  25 // The control flow includes most or all of the following,
  26 // depending on what is already registered:
  27 //  - creating a ServiceWorkerRegistration instance if there isn't
  28 //    already something registered
  29 //  - creating a ServiceWorkerVersion for the new version.
  30 //  - starting a worker for the ServiceWorkerVersion
  31 //  - firing the 'install' event at the ServiceWorkerVersion
  32 //  - firing the 'activate' event at the ServiceWorkerVersion
  33 //  - waiting for older ServiceWorkerVersions to deactivate
  34 //  - designating the new version to be the 'active' version
  35 //  - updating storage
  36 class ServiceWorkerRegisterJob : public ServiceWorkerRegisterJobBase,
  37                                  public EmbeddedWorkerInstance::Listener,
  38                                  public ServiceWorkerRegistration::Listener {
  39  public:
  40   typedef base::Callback<void(ServiceWorkerStatusCode status,
  41                               ServiceWorkerRegistration* registration)>
  42       RegistrationCallback;
  43
  44   // For registration jobs.
  45   CONTENT_EXPORT ServiceWorkerRegisterJob(
  46       base::WeakPtr<ServiceWorkerContextCore> context,
  47       const GURL& pattern,
  48       const GURL& script_url);
  49
  50   // For update jobs.
  51   CONTENT_EXPORT ServiceWorkerRegisterJob(
  52       base::WeakPtr<ServiceWorkerContextCore> context,
  53       ServiceWorkerRegistration* registration);
  54   ~ServiceWorkerRegisterJob() override;
  55
  56   // Registers a callback to be called when the promise would resolve (whether
  57   // successfully or not). Multiple callbacks may be registered.
  58   // If |provider_host| is not NULL, its process will be regarded as a candidate
  59   // process to run the worker.
  60   void AddCallback(const RegistrationCallback& callback,
  61                    ServiceWorkerProviderHost* provider_host);
  62
  63   // ServiceWorkerRegisterJobBase implementation:
  64   void Start() override;
  65   void Abort() override;
  66   bool Equals(ServiceWorkerRegisterJobBase* job) override;
  67   RegistrationJobType GetType() override;
  68
  69  private:
  70   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerProviderHostWaitingVersionTest,
  71                            AssociateInstallingVersionToDocuments);
  72   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerProviderHostWaitingVersionTest,
  73                            DisassociateVersionFromDocuments);
  74
  75   enum Phase {
  76     INITIAL,
  77     START,
  78     WAIT_FOR_UNINSTALL,
  79     REGISTER,
  80     UPDATE,
  81     INSTALL,
  82     STORE,
  83     COMPLETE,
  84     ABORT,
  85   };
  86
  87   // Holds internal state of ServiceWorkerRegistrationJob, to compel use of the
  88   // getter/setter functions.
  89   struct Internal {
  90     Internal();
  91     ~Internal();
  92     scoped_refptr<ServiceWorkerRegistration> registration;
  93
  94     // Holds the version created by this job. It can be the 'installing',
  95     // 'waiting', or 'active' version depending on the phase.
  96     scoped_refptr<ServiceWorkerVersion> new_version;
  97
  98     scoped_refptr<ServiceWorkerRegistration> uninstalling_registration;
  99   };
 100
 101   void set_registration(
 102       const scoped_refptr<ServiceWorkerRegistration>& registration);
 103   ServiceWorkerRegistration* registration();
 104   void set_new_version(ServiceWorkerVersion* version);
 105   ServiceWorkerVersion* new_version();
 106   void set_uninstalling_registration(
 107       const scoped_refptr<ServiceWorkerRegistration>& registration);
 108   ServiceWorkerRegistration* uninstalling_registration();
 109
 110   void SetPhase(Phase phase);
 111
 112   void ContinueWithRegistration(
 113       ServiceWorkerStatusCode status,
 114       const scoped_refptr<ServiceWorkerRegistration>& registration);
 115   void ContinueWithUpdate(
 116       ServiceWorkerStatusCode status,
 117       const scoped_refptr<ServiceWorkerRegistration>& registration);
 118   void RegisterAndContinue(ServiceWorkerStatusCode status);
 119   void WaitForUninstall(
 120       const scoped_refptr<ServiceWorkerRegistration>& registration);
 121   void ContinueWithRegistrationForSameScriptUrl(
 122       const scoped_refptr<ServiceWorkerRegistration>& existing_registration,
 123       ServiceWorkerStatusCode status);
 124   void UpdateAndContinue();
 125   void OnStartWorkerFinished(ServiceWorkerStatusCode status);
 126   void OnStoreRegistrationComplete(ServiceWorkerStatusCode status);
 127   void InstallAndContinue();
 128   void OnInstallFinished(ServiceWorkerStatusCode status);
 129   void ActivateAndContinue();
 130   void OnActivateFinished(ServiceWorkerStatusCode status);
 131   void Complete(ServiceWorkerStatusCode status);
 132   void CompleteInternal(ServiceWorkerStatusCode status);
 133   void ResolvePromise(ServiceWorkerStatusCode status,
 134                       ServiceWorkerRegistration* registration);
 135
 136   // EmbeddedWorkerInstance::Listener override of OnPausedAfterDownload.
 137   void OnPausedAfterDownload() override;
 138   bool OnMessageReceived(const IPC::Message& message) override;
 139
 140   // ServiceWorkerRegistration::Listener overrides
 141   void OnRegistrationFinishedUninstalling(
 142       ServiceWorkerRegistration* registration) override;
 143
 144   void OnCompareScriptResourcesComplete(
 145       ServiceWorkerStatusCode status,
 146       bool are_equal);
 147
 148   void AssociateProviderHostsToRegistration(
 149       ServiceWorkerRegistration* registration);
 150
 151   // The ServiceWorkerContextCore object should always outlive this.
 152   base::WeakPtr<ServiceWorkerContextCore> context_;
 153
 154   RegistrationJobType job_type_;
 155   const GURL pattern_;
 156   const GURL script_url_;
 157   std::vector<RegistrationCallback> callbacks_;
 158   Phase phase_;
 159   Internal internal_;
 160   bool is_promise_resolved_;
 161   ServiceWorkerStatusCode promise_resolved_status_;
 162   scoped_refptr<ServiceWorkerRegistration> promise_resolved_registration_;
 163   base::WeakPtrFactory<ServiceWorkerRegisterJob> weak_factory_;
 164
 165   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRegisterJob);
 166 };
 167
 168 }  // namespace content
 169
 170 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REGISTER_JOB_H_