X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=src%2Fcontent%2Fbrowser%2Fservice_worker%2Fservice_worker_registration.h;h=51872d21447396ddf03a71fa57ff9c3882ff4ecc;hb=4a1a0bdd01eef90b0826a0e761d3379d3715c10f;hp=df23dc3d61a55b913fa5ccd18ebc31219fe6581d;hpb=b1be5ca53587d23e7aeb77b26861fdc0a181ffd8;p=platform%2Fframework%2Fweb%2Fcrosswalk.git

diff --git a/src/content/browser/service_worker/service_worker_registration.h b/src/content/browser/service_worker/service_worker_registration.h
index df23dc3..51872d2 100644
--- a/src/content/browser/service_worker/service_worker_registration.h
+++ b/src/content/browser/service_worker/service_worker_registration.h
@@ -12,6 +12,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/service_worker/service_worker_version.h"
 #include "content/common/content_export.h"
+#include "content/common/service_worker/service_worker_types.h"
 #include "url/gurl.h"
 
 namespace content {
@@ -19,22 +20,27 @@ namespace content {
 class ServiceWorkerRegistrationInfo;
 class ServiceWorkerVersion;
 
-// This class manages all persistence of service workers:
-//  - Registrations
-//  - Mapping of caches to registrations / versions
-//
-// This is the place where we manage simultaneous
-// requests for the same registrations and caches, making sure that
-// two pages that are registering the same pattern at the same time
-// have their registrations coalesced rather than overwriting each
-// other.
-//
-// This class also manages the state of the upgrade process, which
-// includes managing which ServiceWorkerVersion is "active" vs "in
-// waiting".
+// This class represents a service worker registration. The
+// scope and script url are constant for the life of the persistent
+// registration. It's refcounted to facillitate multiple controllees
+// being associated with the same registration. The class roughly
+// corresponds to navigator.serviceWorker.registgration.
 class CONTENT_EXPORT ServiceWorkerRegistration
-    : NON_EXPORTED_BASE(public base::RefCounted<ServiceWorkerRegistration>) {
+    : NON_EXPORTED_BASE(public base::RefCounted<ServiceWorkerRegistration>),
+      public ServiceWorkerVersion::Listener {
  public:
+  typedef base::Callback<void(ServiceWorkerStatusCode status)> StatusCallback;
+
+  class Listener {
+   public:
+    virtual void OnVersionAttributesChanged(
+        ServiceWorkerRegistration* registration,
+        ChangedVersionAttributesMask changed_mask,
+        const ServiceWorkerRegistrationInfo& info) = 0;
+    virtual void OnRegistrationFailed(
+        ServiceWorkerRegistration* registration) = 0;
+  };
+
   ServiceWorkerRegistration(const GURL& pattern,
                             const GURL& script_url,
                             int64 registration_id,
@@ -44,51 +50,104 @@ class CONTENT_EXPORT ServiceWorkerRegistration
   const GURL& script_url() const { return script_url_; }
   const GURL& pattern() const { return pattern_; }
 
+  bool is_deleted() const { return is_deleted_; }
+  void set_is_deleted(bool deleted) { is_deleted_ = deleted; }
+
+  bool is_uninstalling() const { return is_uninstalling_; }
+
   ServiceWorkerVersion* active_version() const {
-    DCHECK(!is_shutdown_);
     return active_version_.get();
   }
 
   ServiceWorkerVersion* waiting_version() const {
-    DCHECK(!is_shutdown_);
     return waiting_version_.get();
   }
 
-  void set_active_version(ServiceWorkerVersion* version) {
-    DCHECK(!is_shutdown_);
-    active_version_ = version;
+  ServiceWorkerVersion* installing_version() const {
+    return installing_version_.get();
   }
 
-  void set_waiting_version(ServiceWorkerVersion* version) {
-    DCHECK(!is_shutdown_);
-    waiting_version_ = version;
-  }
+  void AddListener(Listener* listener);
+  void RemoveListener(Listener* listener);
+  void NotifyRegistrationFailed();
 
   ServiceWorkerRegistrationInfo GetInfo();
 
-  // Returns the active version, if it is not null; otherwise, returns the
-  // waiting version.
-  ServiceWorkerVersion* GetNewestVersion();
-
-  // The final synchronous switchover after all events have been
-  // fired, and the old "active version" is being shut down.
-  void ActivateWaitingVersion();
+  // Sets the corresposding version attribute and resets the position
+  // (if any) left vacant (ie. by a waiting version being promoted).
+  // Also notifies listeners via OnVersionAttributesChanged.
+  void SetActiveVersion(ServiceWorkerVersion* version);
+  void SetWaitingVersion(ServiceWorkerVersion* version);
+  void SetInstallingVersion(ServiceWorkerVersion* version);
+
+  // If version is the installing, waiting, active version of this
+  // registation, the method will reset that field to NULL, and notify
+  // listeners via OnVersionAttributesChanged.
+  void UnsetVersion(ServiceWorkerVersion* version);
+
+  // Triggers the [[Activate]] algorithm when the currently active version
+  // has no controllees. If there are no controllees at the time the method
+  // is called, activation is initiated immediately.
+  void ActivateWaitingVersionWhenReady();
+
+  // Triggers the [[ClearRegistration]] algorithm when the currently
+  // active version has no controllees. Deletes this registration
+  // from storage immediately.
+  void ClearWhenReady();
+
+  // Restores this registration in storage and cancels the pending
+  // [[ClearRegistration]] algorithm. If the algorithm was already triggered,
+  // does nothing.
+  void AbortPendingClear();
+
+  // The time of the most recent update check.
+  base::Time last_update_check() const { return last_update_check_; }
+  void set_last_update_check(base::Time last) { last_update_check_ = last; }
 
  private:
-  ~ServiceWorkerRegistration();
   friend class base::RefCounted<ServiceWorkerRegistration>;
 
+  virtual ~ServiceWorkerRegistration();
+
+  void SetVersionInternal(
+      ServiceWorkerVersion* version,
+      scoped_refptr<ServiceWorkerVersion>* data_member,
+      int change_flag);
+  void UnsetVersionInternal(
+      ServiceWorkerVersion* version,
+      ChangedVersionAttributesMask* mask);
+
+  // ServiceWorkerVersion::Listener override.
+  virtual void OnNoControllees(ServiceWorkerVersion* version) OVERRIDE;
+
+  // This method corresponds to the [[Activate]] algorithm.
+  void ActivateWaitingVersion();
+  void OnActivateEventFinished(
+      ServiceWorkerVersion* activating_version,
+      ServiceWorkerStatusCode status);
+  void OnDeleteFinished(ServiceWorkerStatusCode status);
+
+  // This method corresponds to the [[ClearRegistration]] algorithm.
+  void Clear();
+  void OnStoreFinished(scoped_refptr<ServiceWorkerVersion> version,
+                       ServiceWorkerStatusCode status);
+
   const GURL pattern_;
   const GURL script_url_;
   const int64 registration_id_;
-
+  bool is_deleted_;
+  bool is_uninstalling_;
+  bool should_activate_when_ready_;
+  base::Time last_update_check_;
   scoped_refptr<ServiceWorkerVersion> active_version_;
   scoped_refptr<ServiceWorkerVersion> waiting_version_;
-
-  bool is_shutdown_;
+  scoped_refptr<ServiceWorkerVersion> installing_version_;
+  ObserverList<Listener> listeners_;
   base::WeakPtr<ServiceWorkerContextCore> context_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRegistration);
 };
+
 }  // namespace content
+
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REGISTRATION_H_