Update To 11.40.268.0
[platform/framework/web/crosswalk.git] / src / content / browser / service_worker / service_worker_version.h
index d5463c4..0dcf9a4 100644 (file)
@@ -5,6 +5,8 @@
 #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_VERSION_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_VERSION_H_
 
+#include <map>
+#include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/id_map.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/observer_list.h"
+#include "base/timer/timer.h"
 #include "content/browser/service_worker/embedded_worker_instance.h"
+#include "content/browser/service_worker/service_worker_cache_listener.h"
+#include "content/browser/service_worker/service_worker_script_cache_map.h"
 #include "content/common/content_export.h"
 #include "content/common/service_worker/service_worker_status_code.h"
 #include "content/common/service_worker/service_worker_types.h"
+#include "third_party/WebKit/public/platform/WebGeofencingEventType.h"
+#include "third_party/WebKit/public/platform/WebServiceWorkerEventResult.h"
 
 class GURL;
 
+namespace blink {
+struct WebCircularGeofencingRegion;
+}
+
 namespace content {
 
 class EmbeddedWorkerRegistry;
+class ServiceWorkerContextCore;
+class ServiceWorkerProviderHost;
 class ServiceWorkerRegistration;
 class ServiceWorkerVersionInfo;
 
 // This class corresponds to a specific version of a ServiceWorker
 // script for a given pattern. When a script is upgraded, there may be
 // more than one ServiceWorkerVersion "running" at a time, but only
-// one of them is active. This class connects the actual script with a
+// one of them is activated. This class connects the actual script with a
 // running worker.
-//
-// is_shutdown_ detects the live-ness of the object itself. If the object is
-// shut down, then it is in the process of being deleted from memory.
-// This happens when a version is replaced as well as at browser shutdown.
 class CONTENT_EXPORT ServiceWorkerVersion
     : NON_EXPORTED_BASE(public base::RefCounted<ServiceWorkerVersion>),
-      public EmbeddedWorkerInstance::Observer {
+      public EmbeddedWorkerInstance::Listener {
  public:
   typedef base::Callback<void(ServiceWorkerStatusCode)> StatusCallback;
   typedef base::Callback<void(ServiceWorkerStatusCode,
@@ -53,35 +63,55 @@ class CONTENT_EXPORT ServiceWorkerVersion
     STOPPING = EmbeddedWorkerInstance::STOPPING,
   };
 
-  // Current version status; some of the status (e.g. INSTALLED and ACTIVE)
+  // Current version status; some of the status (e.g. INSTALLED and ACTIVATED)
   // should be persisted unlike running status.
   enum Status {
     NEW,         // The version is just created.
     INSTALLING,  // Install event is dispatched and being handled.
     INSTALLED,   // Install event is finished and is ready to be activated.
     ACTIVATING,  // Activate event is dispatched and being handled.
-    ACTIVE,      // Activation is finished and can run as active.
-    DEACTIVATED, // The version is no longer running as active, due to
-                 // unregistration or replace. (TODO(kinuko): we may need
-                 // different states for different termination sequences)
+    ACTIVATED,   // Activation is finished and can run as activated.
+    REDUNDANT,   // The version is no longer running as activated, due to
+                 // unregistration or replace.
+  };
+
+  class Listener {
+   public:
+    virtual void OnWorkerStarted(ServiceWorkerVersion* version) {}
+    virtual void OnWorkerStopped(ServiceWorkerVersion* version) {}
+    virtual void OnVersionStateChanged(ServiceWorkerVersion* version) {}
+    virtual void OnErrorReported(ServiceWorkerVersion* version,
+                                 const base::string16& error_message,
+                                 int line_number,
+                                 int column_number,
+                                 const GURL& source_url) {}
+    virtual void OnReportConsoleMessage(ServiceWorkerVersion* version,
+                                        int source_identifier,
+                                        int message_level,
+                                        const base::string16& message,
+                                        int line_number,
+                                        const GURL& source_url) {}
+    // Fires when a version transitions from having a controllee to not.
+    virtual void OnNoControllees(ServiceWorkerVersion* version) {}
+
+   protected:
+    virtual ~Listener() {}
   };
 
   ServiceWorkerVersion(
       ServiceWorkerRegistration* registration,
-      EmbeddedWorkerRegistry* worker_registry,
-      int64 version_id);
+      const GURL& script_url,
+      int64 version_id,
+      base::WeakPtr<ServiceWorkerContextCore> context);
 
   int64 version_id() const { return version_id_; }
-
-  void Shutdown();
-  bool is_shutdown() const { return is_shutdown_; }
-
+  int64 registration_id() const { return registration_id_; }
+  const GURL& script_url() const { return script_url_; }
+  const GURL& scope() const { return scope_; }
   RunningStatus running_status() const {
     return static_cast<RunningStatus>(embedded_worker_->status());
   }
-
   ServiceWorkerVersionInfo GetInfo();
-
   Status status() const { return status_; }
 
   // This sets the new status and also run status change callbacks
@@ -98,93 +128,191 @@ class CONTENT_EXPORT ServiceWorkerVersion
   void StartWorker(const StatusCallback& callback);
 
   // Starts an embedded worker for this version.
+  // |pause_after_download| notifies worker to pause after download finished
+  // which could be resumed by EmbeddedWorkerInstance::ResumeAfterDownload.
+  // This returns OK (success) if the worker is already running.
+  void StartWorker(bool pause_after_download,
+                   const StatusCallback& callback);
+
+  // Stops an embedded worker for this version.
   // This returns OK (success) if the worker is already stopped.
   void StopWorker(const StatusCallback& callback);
 
+  // Schedules an update to be run 'soon'.
+  void ScheduleUpdate();
+
+  // If an update is scheduled but not yet started, this resets the timer
+  // delaying the start time by a 'small' amount.
+  void DeferScheduledUpdate();
+
+  // Starts an update now.
+  void StartUpdate();
+
   // Sends an IPC message to the worker.
   // If the worker is not running this first tries to start it by
   // calling StartWorker internally.
   // |callback| can be null if the sender does not need to know if the
   // message is successfully sent or not.
-  // (If the sender expects the receiver to respond please use
-  // SendMessageAndRegisterCallback instead)
   void SendMessage(const IPC::Message& message, const StatusCallback& callback);
 
-  // Sends an IPC message to the worker and registers |callback| to
-  // be notified when a response message is received.
-  // The |callback| will be also fired with an error code if the worker
-  // is unexpectedly (being) stopped.
-  // If the worker is not running this first tries to start it by
-  // calling StartWorker internally.
-  void SendMessageAndRegisterCallback(const IPC::Message& message,
-                                      const MessageCallback& callback);
-
   // Sends install event to the associated embedded worker and asynchronously
-  // calls |callback| when it errors out or it gets response from the worker
+  // calls |callback| when it errors out or it gets response from the worker
   // to notify install completion.
-  // |active_version_embedded_worker_id| must be a valid positive ID
-  // if there's an active (previous) version running.
+  // |active_version_id| must be a valid positive ID
+  // if there's an activated (previous) version running.
   //
   // This must be called when the status() is NEW. Calling this changes
   // the version's status to INSTALLING.
   // Upon completion, the version's status will be changed to INSTALLED
   // on success, or back to NEW on failure.
-  void DispatchInstallEvent(int active_version_embedded_worker_id,
+  void DispatchInstallEvent(int active_version_id,
                             const StatusCallback& callback);
 
   // Sends activate event to the associated embedded worker and asynchronously
-  // calls |callback| when it errors out or it gets response from the worker
+  // calls |callback| when it errors out or it gets response from the worker
   // to notify activation completion.
   //
   // This must be called when the status() is INSTALLED. Calling this changes
   // the version's status to ACTIVATING.
-  // Upon completion, the version's status will be changed to ACTIVE
+  // Upon completion, the version's status will be changed to ACTIVATED
   // on success, or back to INSTALLED on failure.
   void DispatchActivateEvent(const StatusCallback& callback);
 
   // Sends fetch event to the associated embedded worker and calls
   // |callback| with the response from the worker.
   //
-  // This must be called when the status() is ACTIVE. Calling this in other
+  // This must be called when the status() is ACTIVATED. Calling this in other
   // statuses will result in an error SERVICE_WORKER_ERROR_FAILED.
   void DispatchFetchEvent(const ServiceWorkerFetchRequest& request,
-                          const FetchCallback& callback);
+                          const base::Closure& prepare_callback,
+                          const FetchCallback& fetch_callback);
 
-  // These are expected to be called when a renderer process host for the
-  // same-origin as for this ServiceWorkerVersion is created.  The added
-  // processes are used to run an in-renderer embedded worker.
-  void AddProcessToWorker(int process_id);
-  void RemoveProcessToWorker(int process_id);
+  // Sends sync event to the associated embedded worker and asynchronously calls
+  // |callback| when it errors out or it gets a response from the worker to
+  // notify completion.
+  //
+  // This must be called when the status() is ACTIVATED.
+  void DispatchSyncEvent(const StatusCallback& callback);
 
+  // Sends push event to the associated embedded worker and asynchronously calls
+  // |callback| when it errors out or it gets a response from the worker to
+  // notify completion.
+  //
+  // This must be called when the status() is ACTIVATED.
+  void DispatchPushEvent(const StatusCallback& callback,
+                         const std::string& data);
+
+  // Sends geofencing event to the associated embedded worker and asynchronously
+  // calls |callback| when it errors out or it gets a response from the worker
+  // to notify completion.
+  //
+  // This must be called when the status() is ACTIVATED.
+  void DispatchGeofencingEvent(
+      const StatusCallback& callback,
+      blink::WebGeofencingEventType event_type,
+      const std::string& region_id,
+      const blink::WebCircularGeofencingRegion& region);
+
+  // Adds and removes |provider_host| as a controllee of this ServiceWorker.
+  // A potential controllee is a host having the version as its .installing
+  // or .waiting version.
+  void AddControllee(ServiceWorkerProviderHost* provider_host);
+  void RemoveControllee(ServiceWorkerProviderHost* provider_host);
+
+  // Returns if it has controllee.
+  bool HasControllee() const { return !controllee_map_.empty(); }
+
+  // Adds and removes Listeners.
+  void AddListener(Listener* listener);
+  void RemoveListener(Listener* listener);
+
+  ServiceWorkerScriptCacheMap* script_cache_map() { return &script_cache_map_; }
   EmbeddedWorkerInstance* embedded_worker() { return embedded_worker_.get(); }
 
-  // EmbeddedWorkerInstance::Observer overrides:
-  virtual void OnStarted() OVERRIDE;
-  virtual void OnStopped() OVERRIDE;
-  virtual void OnMessageReceived(int request_id,
-                                 const IPC::Message& message) OVERRIDE;
+  // Dooms this version to have REDUNDANT status and its resources deleted.  If
+  // the version is controlling a page, these changes will happen when the
+  // version no longer controls any pages.
+  void Doom();
+  bool is_doomed() const { return is_doomed_; }
 
  private:
-  typedef ServiceWorkerVersion self;
   friend class base::RefCounted<ServiceWorkerVersion>;
-
-  virtual ~ServiceWorkerVersion();
+  FRIEND_TEST_ALL_PREFIXES(ServiceWorkerControlleeRequestHandlerTest,
+                           ActivateWaitingVersion);
+  FRIEND_TEST_ALL_PREFIXES(ServiceWorkerVersionTest, ScheduleStopWorker);
+  FRIEND_TEST_ALL_PREFIXES(ServiceWorkerVersionTest, ListenerAvailability);
+  typedef ServiceWorkerVersion self;
+  typedef std::map<ServiceWorkerProviderHost*, int> ControlleeMap;
+  typedef IDMap<ServiceWorkerProviderHost> ControlleeByIDMap;
+
+  ~ServiceWorkerVersion() override;
+
+  // EmbeddedWorkerInstance::Listener overrides:
+  void OnStarted() override;
+  void OnStopped() override;
+  void OnReportException(const base::string16& error_message,
+                         int line_number,
+                         int column_number,
+                         const GURL& source_url) override;
+  void OnReportConsoleMessage(int source_identifier,
+                              int message_level,
+                              const base::string16& message,
+                              int line_number,
+                              const GURL& source_url) override;
+  bool OnMessageReceived(const IPC::Message& message) override;
+
+  void OnStartMessageSent(ServiceWorkerStatusCode status);
+
+  void DispatchInstallEventAfterStartWorker(int active_version_id,
+                                            const StatusCallback& callback);
+  void DispatchActivateEventAfterStartWorker(const StatusCallback& callback);
+
+  // Message handlers.
+  void OnGetClientDocuments(int request_id);
+  void OnActivateEventFinished(int request_id,
+                               blink::WebServiceWorkerEventResult result);
+  void OnInstallEventFinished(int request_id,
+                              blink::WebServiceWorkerEventResult result);
+  void OnFetchEventFinished(int request_id,
+                            ServiceWorkerFetchEventResult result,
+                            const ServiceWorkerResponse& response);
+  void OnSyncEventFinished(int request_id);
+  void OnPushEventFinished(int request_id);
+  void OnGeofencingEventFinished(int request_id);
+  void OnPostMessageToDocument(int client_id,
+                               const base::string16& message,
+                               const std::vector<int>& sent_message_port_ids);
+
+  void ScheduleStopWorker();
+  void DoomInternal();
 
   const int64 version_id_;
-
+  int64 registration_id_;
+  GURL script_url_;
+  GURL scope_;
   Status status_;
-
-  bool is_shutdown_;
-  scoped_refptr<ServiceWorkerRegistration> registration_;
   scoped_ptr<EmbeddedWorkerInstance> embedded_worker_;
-
-  // Pending callbacks.
+  scoped_ptr<ServiceWorkerCacheListener> cache_listener_;
   std::vector<StatusCallback> start_callbacks_;
   std::vector<StatusCallback> stop_callbacks_;
-
   std::vector<base::Closure> status_change_callbacks_;
 
-  IDMap<MessageCallback, IDMapOwnPointer> message_callbacks_;
+  // Message callbacks.
+  IDMap<StatusCallback, IDMapOwnPointer> activate_callbacks_;
+  IDMap<StatusCallback, IDMapOwnPointer> install_callbacks_;
+  IDMap<FetchCallback, IDMapOwnPointer> fetch_callbacks_;
+  IDMap<StatusCallback, IDMapOwnPointer> sync_callbacks_;
+  IDMap<StatusCallback, IDMapOwnPointer> push_callbacks_;
+  IDMap<StatusCallback, IDMapOwnPointer> geofencing_callbacks_;
+
+  ControlleeMap controllee_map_;
+  ControlleeByIDMap controllee_by_id_;
+  base::WeakPtr<ServiceWorkerContextCore> context_;
+  ObserverList<Listener> listeners_;
+  ServiceWorkerScriptCacheMap script_cache_map_;
+  base::OneShotTimer<ServiceWorkerVersion> stop_worker_timer_;
+  base::OneShotTimer<ServiceWorkerVersion> update_timer_;
+  bool is_doomed_;
 
   base::WeakPtrFactory<ServiceWorkerVersion> weak_factory_;