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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PROVIDER_H_ | 5 #ifndef CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PROVIDER_H_ |
| 6 #define CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PROVIDER_H_ | 6 #define CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PROVIDER_H_ |
| 7 #pragma once | 7 #pragma once |
| 8 | 8 |
| 9 #include "base/basictypes.h" | 9 #include "base/basictypes.h" |
| 10 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
| 11 #include "base/observer_list.h" | 11 #include "base/observer_list.h" |
| 12 #include "chrome/browser/policy/policy_bundle.h" | 12 #include "chrome/browser/policy/policy_bundle.h" |
| 13 | 13 |
| 14 namespace policy { | 14 namespace policy { |
| 15 | 15 |
| 16 struct PolicyDefinitionList; | 16 struct PolicyDefinitionList; |
| 17 class PolicyMap; | |
| 18 | 17 |
| 19 // A mostly-abstract super class for platform-specific policy providers. | 18 // A mostly-abstract super class for platform-specific policy providers. |
| 20 // Platform-specific policy providers (Windows Group Policy, gconf, | 19 // Platform-specific policy providers (Windows Group Policy, gconf, |
| 21 // etc.) should implement a subclass of this class. | 20 // etc.) should implement a subclass of this class. |
| 22 class ConfigurationPolicyProvider { | 21 class ConfigurationPolicyProvider { |
| 23 public: | 22 public: |
| 24 class Observer { | 23 class Observer { |
| 25 public: | 24 public: |
| 26 virtual ~Observer(); | 25 virtual ~Observer(); |
| 27 virtual void OnUpdatePolicy(ConfigurationPolicyProvider* provider) = 0; | 26 virtual void OnUpdatePolicy(ConfigurationPolicyProvider* provider) = 0; |
| 28 virtual void OnProviderGoingAway(ConfigurationPolicyProvider* provider); | 27 virtual void OnProviderGoingAway(ConfigurationPolicyProvider* provider); |
| 29 }; | 28 }; |
| 30 | 29 |
| 31 explicit ConfigurationPolicyProvider(const PolicyDefinitionList* policy_list); | 30 explicit ConfigurationPolicyProvider(const PolicyDefinitionList* policy_list); |
| 32 | 31 |
| 33 virtual ~ConfigurationPolicyProvider(); | 32 virtual ~ConfigurationPolicyProvider(); |
| 34 | 33 |
| 35 // Fills the given |result| with the current policy values. Returns true if | |
| 36 // the policies were provided. This is used mainly by the | |
| 37 // ConfigurationPolicyPrefStore, which retrieves policy values from here. | |
| 38 // DEPRECATED: this call is going away, use policies() instead. | |
| 39 // http://crbug.com/108993 | |
| 40 bool Provide(PolicyMap* result); | |
| 41 | |
| 42 // Returns the current PolicyBundle. | 34 // Returns the current PolicyBundle. |
| 43 const PolicyBundle& policies() const { return policy_bundle_; } | 35 const PolicyBundle& policies() const { return policy_bundle_; } |
| 44 | 36 |
| 45 // Check whether this provider has completed initialization. This is used to | 37 // Check whether this provider has completed initialization. This is used to |
| 46 // detect whether initialization is done in case providers implementations | 38 // detect whether initialization is done in case providers implementations |
| 47 // need to do asynchronous operations for initialization. | 39 // need to do asynchronous operations for initialization. |
| 48 virtual bool IsInitializationComplete() const; | 40 virtual bool IsInitializationComplete() const; |
| 49 | 41 |
| 50 // Asks the provider to refresh its policies. All the updates caused by this | 42 // Asks the provider to refresh its policies. All the updates caused by this |
| 51 // call will be visible on the next call of OnUpdatePolicy on the observers, | 43 // call will be visible on the next call of OnUpdatePolicy on the observers, |
| 52 // which are guaranteed to happen even if the refresh fails. | 44 // which are guaranteed to happen even if the refresh fails. |
| 53 // It is possible that OnProviderGoingAway is called first though, and | 45 // It is possible that OnProviderGoingAway is called first though, and |
| 54 // OnUpdatePolicy won't be called if that happens. | 46 // OnUpdatePolicy won't be called if that happens. |
| 55 virtual void RefreshPolicies() = 0; | 47 virtual void RefreshPolicies() = 0; |
| 56 | 48 |
| 57 // Utility method that converts deprecated policies into their corresponding | |
| 58 // actual policies. Subclasses can use this to fix deprecated policies in | |
| 59 // PolicyMaps that they obtained from elsewhere. | |
| 60 static void FixDeprecatedPolicies(PolicyMap* policies); | |
| 61 | |
| 62 protected: | 49 protected: |
| 63 // Subclasses must invoke this to update the policies currently served by | 50 // Subclasses must invoke this to update the policies currently served by |
| 64 // this provider. UpdatePolicy() takes ownership of |policies|. | 51 // this provider. UpdatePolicy() takes ownership of |policies|. |
| 65 // The observers are notified after the policies are updated. | 52 // The observers are notified after the policies are updated. |
| 66 void UpdatePolicy(scoped_ptr<PolicyBundle> bundle); | 53 void UpdatePolicy(scoped_ptr<PolicyBundle> bundle); |
| 67 | 54 |
| 68 const PolicyDefinitionList* policy_definition_list() const { | 55 const PolicyDefinitionList* policy_definition_list() const { |
| 69 return policy_definition_list_; | 56 return policy_definition_list_; |
| 70 } | 57 } |
| 71 | 58 |
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| 109 private: | 96 private: |
| 110 ConfigurationPolicyProvider* provider_; | 97 ConfigurationPolicyProvider* provider_; |
| 111 ConfigurationPolicyProvider::Observer* observer_; | 98 ConfigurationPolicyProvider::Observer* observer_; |
| 112 | 99 |
| 113 DISALLOW_COPY_AND_ASSIGN(ConfigurationPolicyObserverRegistrar); | 100 DISALLOW_COPY_AND_ASSIGN(ConfigurationPolicyObserverRegistrar); |
| 114 }; | 101 }; |
| 115 | 102 |
| 116 } // namespace policy | 103 } // namespace policy |
| 117 | 104 |
| 118 #endif // CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PROVIDER_H_ | 105 #endif // CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PROVIDER_H_ |
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