src/chrome/browser/extensions/api/push_messaging/push_messaging_invalidation_handler.h

   1 // Copyright (c) 2012 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 CHROME_BROWSER_EXTENSIONS_API_PUSH_MESSAGING_PUSH_MESSAGING_INVALIDATION_HANDLER_H_
   6 #define CHROME_BROWSER_EXTENSIONS_API_PUSH_MESSAGING_PUSH_MESSAGING_INVALIDATION_HANDLER_H_
   7
   8 #include <set>
   9 #include <string>
  10
  11 #include "base/basictypes.h"
  12 #include "base/compiler_specific.h"
  13 #include "base/threading/thread_checker.h"
  14 #include "chrome/browser/extensions/api/push_messaging/push_messaging_invalidation_mapper.h"
  15 #include "sync/notifier/invalidation_handler.h"
  16
  17 namespace invalidation {
  18 class InvalidationService;
  19 }
  20
  21 namespace extensions {
  22
  23 class PushMessagingInvalidationHandlerDelegate;
  24
  25 // This class maps extension IDs to the corresponding object IDs, manages
  26 // invalidation registrations, and dispatches callbacks for any invalidations
  27 // received.
  28 class PushMessagingInvalidationHandler : public PushMessagingInvalidationMapper,
  29                                          public syncer::InvalidationHandler {
  30  public:
  31   // |service| and |delegate| must remain valid for the lifetime of this object.
  32   // |extension_ids| is the set of extension IDs for which push messaging is
  33   // enabled.
  34   PushMessagingInvalidationHandler(
  35       invalidation::InvalidationService* service,
  36       PushMessagingInvalidationHandlerDelegate* delegate);
  37   virtual ~PushMessagingInvalidationHandler();
  38
  39   // PushMessagingInvalidationMapper implementation.
  40   virtual void SuppressInitialInvalidationsForExtension(
  41       const std::string& extension_id) OVERRIDE;
  42   virtual void RegisterExtension(const std::string& extension_id) OVERRIDE;
  43   virtual void UnregisterExtension(const std::string& extension_id) OVERRIDE;
  44
  45   // InvalidationHandler implementation.
  46   virtual void OnInvalidatorStateChange(
  47       syncer::InvalidatorState state) OVERRIDE;
  48   virtual void OnIncomingInvalidation(
  49       const syncer::ObjectIdInvalidationMap& invalidation_map) OVERRIDE;
  50
  51   const std::set<std::string>& GetRegisteredExtensionsForTest() const {
  52     return registered_extensions_;
  53   }
  54
  55  private:
  56   void UpdateRegistrations();
  57
  58   base::ThreadChecker thread_checker_;
  59   invalidation::InvalidationService* const service_;
  60   std::set<std::string> registered_extensions_;
  61   syncer::ObjectIdSet suppressed_ids_;
  62   PushMessagingInvalidationHandlerDelegate* const delegate_;
  63
  64   DISALLOW_COPY_AND_ASSIGN(PushMessagingInvalidationHandler);
  65 };
  66
  67 }  // namespace extensions
  68
  69 #endif  // CHROME_BROWSER_EXTENSIONS_API_PUSH_MESSAGING_PUSH_MESSAGING_INVALIDATION_HANDLER_H_