Home | History | Annotate | Download | only in policy 
      1 // Copyright (c) 2011 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_POLICY_CONFIGURATION_POLICY_PREF_STORE_H_
      6 #define CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PREF_STORE_H_
      7 #pragma once
      8 
      9 #include <set>
     10 #include <string>
     11 
     12 #include "base/basictypes.h"
     13 #include "base/memory/scoped_ptr.h"
     14 #include "base/observer_list.h"
     15 #include "base/values.h"
     16 #include "chrome/browser/policy/configuration_policy_provider.h"
     17 #include "chrome/browser/policy/configuration_policy_store_interface.h"
     18 #include "chrome/common/pref_store.h"
     19 
     20 class Profile;
     21 
     22 namespace policy {
     23 
     24 class ConfigurationPolicyPrefKeeper;
     25 
     26 // An implementation of PrefStore that bridges policy settings as read from a
     27 // ConfigurationPolicyProvider to preferences.
     28 class ConfigurationPolicyPrefStore
     29     : public PrefStore,
     30       public ConfigurationPolicyProvider::Observer {
     31  public:
     32   // The ConfigurationPolicyPrefStore does not take ownership of the
     33   // passed-in |provider|.
     34   explicit ConfigurationPolicyPrefStore(ConfigurationPolicyProvider* provider);
     35   virtual ~ConfigurationPolicyPrefStore();
     36 
     37   // PrefStore methods:
     38   virtual void AddObserver(PrefStore::Observer* observer);
     39   virtual void RemoveObserver(PrefStore::Observer* observer);
     40   virtual bool IsInitializationComplete() const;
     41   virtual ReadResult GetValue(const std::string& key,
     42                               const Value** result) const;
     43 
     44   // ConfigurationPolicyProvider::Observer methods:
     45   virtual void OnUpdatePolicy();
     46   virtual void OnProviderGoingAway();
     47 
     48   // Creates a ConfigurationPolicyPrefStore that reads managed platform policy.
     49   static ConfigurationPolicyPrefStore* CreateManagedPlatformPolicyPrefStore();
     50 
     51   // Creates a ConfigurationPolicyPrefStore that reads managed cloud policy.
     52   static ConfigurationPolicyPrefStore* CreateManagedCloudPolicyPrefStore(
     53       Profile* profile);
     54 
     55   // Creates a ConfigurationPolicyPrefStore that reads recommended platform
     56   // policy.
     57   static ConfigurationPolicyPrefStore*
     58       CreateRecommendedPlatformPolicyPrefStore();
     59 
     60   // Creates a ConfigurationPolicyPrefStore that reads recommended cloud policy.
     61   static ConfigurationPolicyPrefStore* CreateRecommendedCloudPolicyPrefStore(
     62       Profile* profile);
     63 
     64   // Returns the default policy definition list for Chrome.
     65   static const ConfigurationPolicyProvider::PolicyDefinitionList*
     66       GetChromePolicyDefinitionList();
     67 
     68  private:
     69   // Refreshes policy information, rereading policy from the provider and
     70   // sending out change notifications as appropriate.
     71   void Refresh();
     72 
     73   static const ConfigurationPolicyProvider::PolicyDefinitionList
     74       kPolicyDefinitionList;
     75 
     76   // The policy provider from which policy settings are read.
     77   ConfigurationPolicyProvider* provider_;
     78 
     79   // Initialization status as reported by the policy provider the last time we
     80   // queried it.
     81   bool initialization_complete_;
     82 
     83   // Current policy preferences.
     84   scoped_ptr<ConfigurationPolicyPrefKeeper> policy_keeper_;
     85 
     86   ObserverList<PrefStore::Observer, true> observers_;
     87 
     88   ConfigurationPolicyObserverRegistrar registrar_;
     89 
     90   DISALLOW_COPY_AND_ASSIGN(ConfigurationPolicyPrefStore);
     91 };
     92 
     93 }  // namespace policy
     94 
     95 #endif  // CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PREF_STORE_H_
     96