components/policy/core/common/policy_loader_ios.h

   1 // Copyright 2014 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 COMPONENTS_POLICY_CORE_COMMON_POLICY_LOADER_IOS_H_
   6 #define COMPONENTS_POLICY_CORE_COMMON_POLICY_LOADER_IOS_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/mac/scoped_nsobject.h"
  10 #include "base/memory/weak_ptr.h"
  11 #include "base/time/time.h"
  12 #include "components/policy/core/common/async_policy_loader.h"
  13 #include "components/policy/policy_export.h"
  14
  15 namespace policy {
  16
  17 // A policy loader that loads policy from the managed app configuration
  18 // introduced in iOS 7.
  19 class POLICY_EXPORT PolicyLoaderIOS : public AsyncPolicyLoader {
  20  public:
  21   explicit PolicyLoaderIOS(
  22       scoped_refptr<base::SequencedTaskRunner> task_runner);
  23   virtual ~PolicyLoaderIOS();
  24
  25   // AsyncPolicyLoader implementation.
  26   virtual void InitOnBackgroundThread() OVERRIDE;
  27   virtual scoped_ptr<PolicyBundle> Load() OVERRIDE;
  28   virtual base::Time LastModificationTime() OVERRIDE;
  29
  30  private:
  31   void UserDefaultsChanged();
  32
  33   // Loads the Chrome policies in |dictionary| into the given |bundle|.
  34   static void LoadNSDictionaryToPolicyBundle(NSDictionary* dictionary,
  35                                              PolicyBundle* bundle);
  36
  37   // Used to manage the registration for NSNotificationCenter notifications.
  38   base::scoped_nsobject<id> notification_observer_;
  39
  40   // Timestamp of the last notification.
  41   // Used to coalesce repeated notifications into a single Load() call.
  42   base::Time last_notification_time_;
  43
  44   // Used to Bind() a WeakPtr to |this| for the callback passed to the
  45   // |notification_observer_|.
  46   base::WeakPtrFactory<PolicyLoaderIOS> weak_factory_;
  47
  48   DISALLOW_COPY_AND_ASSIGN(PolicyLoaderIOS);
  49 };
  50
  51 }  // namespace policy
  52
  53 #endif  // COMPONENTS_POLICY_CORE_COMMON_POLICY_LOADER_IOS_H_