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      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_
     54