Upstream version 5.34.104.0

[platform/framework/web/crosswalk.git] / src / content / browser / service_worker / service_worker_version.h

diff --git a/src/content/browser/service_worker/service_worker_version.h b/src/content/browser/service_worker/service_worker_version.h
index 82881d9..aab6178 100644 (file)
--- a/src/content/browser/service_worker/service_worker_version.h
+++ b/src/content/browser/service_worker/service_worker_version.h
@@ -5,9 +5,12 @@
 #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_VERSION_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_VERSION_H_
 
+#include <vector>
+
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/gtest_prod_util.h"
+#include "base/id_map.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/service_worker/embedded_worker_instance.h"
@@ -19,7 +22,6 @@ class GURL;
 namespace content {
 
 class EmbeddedWorkerRegistry;
-class ServiceWorkerProviderHost;
 class ServiceWorkerRegistration;
 struct ServiceWorkerFetchRequest;
 
@@ -56,9 +58,12 @@ struct ServiceWorkerFetchRequest;
 // 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>) {
+    : NON_EXPORTED_BASE(public base::RefCounted<ServiceWorkerVersion>),
+      public EmbeddedWorkerInstance::Observer {
  public:
   typedef base::Callback<void(ServiceWorkerStatusCode)> StatusCallback;
+  typedef base::Callback<void(ServiceWorkerStatusCode,
+                              const IPC::Message& message)> MessageCallback;
 
   enum Status {
     STOPPED = EmbeddedWorkerInstance::STOPPED,
@@ -82,17 +87,39 @@ class CONTENT_EXPORT ServiceWorkerVersion
   }
 
   // Starts an embedded worker for this version.
-  // It is not valid to call this while there's other inflight start or
-  // stop process running.
   // This returns OK (success) if the worker is already running.
   void StartWorker(const StatusCallback& callback);
 
   // Starts an embedded worker for this version.
-  // It is not valid to call this while there's other inflight start or
-  // stop process running.
   // This returns OK (success) if the worker is already stopped.
   void StopWorker(const StatusCallback& callback);
 
+  // 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
+  // to notify install completion.
+  // |active_version_embedded_worker_id| must be a valid positive ID
+  // if there's an active (previous) version running.
+  void DispatchInstallEvent(int active_version_embedded_worker_id,
+                            const StatusCallback& callback);
+
   // Sends fetch event to the associated embedded worker.
   // This immediately returns false if the worker is not running
   // or sending a message to the child process fails.
@@ -107,23 +134,31 @@ class CONTENT_EXPORT ServiceWorkerVersion
 
   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;
+
  private:
+  typedef ServiceWorkerVersion self;
   friend class base::RefCounted<ServiceWorkerVersion>;
 
-  // Embedded worker observer classes.
-  class WorkerObserverBase;
-  class StartObserver;
-  class StopObserver;
-
-  ~ServiceWorkerVersion();
+  virtual ~ServiceWorkerVersion();
 
   const int64 version_id_;
 
   bool is_shutdown_;
   scoped_refptr<ServiceWorkerRegistration> registration_;
-
   scoped_ptr<EmbeddedWorkerInstance> embedded_worker_;
-  scoped_ptr<EmbeddedWorkerInstance::Observer> observer_;
+
+  // Pending callbacks.
+  std::vector<StatusCallback> start_callbacks_;
+  std::vector<StatusCallback> stop_callbacks_;
+
+  IDMap<MessageCallback, IDMapOwnPointer> message_callbacks_;
+
+  base::WeakPtrFactory<ServiceWorkerVersion> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerVersion);
 };