chrome/browser/extensions/api/autofill_private/autofill_private_event_router.h

   1 // Copyright 2015 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_AUTOFILL_PRIVATE_AUTOFILL_PRIVATE_EVENT_ROUTER_H_
   6 #define CHROME_BROWSER_EXTENSIONS_API_AUTOFILL_PRIVATE_AUTOFILL_PRIVATE_EVENT_ROUTER_H_
   7
   8 #include "components/autofill/core/browser/personal_data_manager_observer.h"
   9 #include "components/keyed_service/core/keyed_service.h"
  10 #include "extensions/browser/event_router.h"
  11
  12 namespace autofill {
  13 class PersonalDataManager;
  14 }
  15
  16 namespace content {
  17 class BrowserContext;
  18 }
  19
  20 namespace extensions {
  21
  22 // An event router that observes changes to autofill addresses and credit cards
  23 // and notifies listeners to the onAddressListChanged and
  24 // onCreditCardListChanged events of changes.
  25 class AutofillPrivateEventRouter :
  26     public KeyedService,
  27     public EventRouter::Observer,
  28     public autofill::PersonalDataManagerObserver {
  29  public:
  30   static AutofillPrivateEventRouter* Create(
  31       content::BrowserContext* browser_context);
  32   ~AutofillPrivateEventRouter() override;
  33
  34  protected:
  35   explicit AutofillPrivateEventRouter(content::BrowserContext* context);
  36
  37   // KeyedService overrides:
  38   void Shutdown() override;
  39
  40   // EventRouter::Observer overrides:
  41   void OnListenerAdded(const EventListenerInfo& details) override;
  42   void OnListenerRemoved(const EventListenerInfo& details) override;
  43
  44   // PersonalDataManagerObserver implementation.
  45   void OnPersonalDataChanged() override;
  46
  47  private:
  48   // Either listens or unlistens for changes to |personal_data_|, depending on
  49   // whether clients are listening to the autofillPrivate API events.
  50   void StartOrStopListeningForChanges();
  51
  52   content::BrowserContext* context_;
  53
  54   EventRouter* event_router_;
  55
  56   autofill::PersonalDataManager* personal_data_;
  57
  58   // Whether this class is currently listening for changes to |personal_data_|.
  59   bool listening_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(AutofillPrivateEventRouter);
  62 };
  63
  64 }  // namespace extensions
  65
  66 #endif  // CHROME_BROWSER_EXTENSIONS_API_AUTOFILL_PRIVATE_AUTOFILL_PRIVATE_EVENT_ROUTER_H_