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Side by Side Diff: chrome/browser/policy/asynchronous_policy_provider.h

Issue 9111022: Removed ConfigurationPolicyType and extended PolicyMap. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Rebased Created 8 years, 11 months ago
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1 // Copyright (c) 2011 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_ASYNCHRONOUS_POLICY_PROVIDER_H_ 5 #ifndef CHROME_BROWSER_POLICY_ASYNCHRONOUS_POLICY_PROVIDER_H_
6 #define CHROME_BROWSER_POLICY_ASYNCHRONOUS_POLICY_PROVIDER_H_ 6 #define CHROME_BROWSER_POLICY_ASYNCHRONOUS_POLICY_PROVIDER_H_
7 #pragma once 7 #pragma once
8 8
9 #include "base/memory/ref_counted.h" 9 #include "base/memory/ref_counted.h"
10 #include "base/memory/weak_ptr.h" 10 #include "base/memory/weak_ptr.h"
11 #include "base/threading/non_thread_safe.h" 11 #include "base/threading/non_thread_safe.h"
12 #include "chrome/browser/policy/configuration_policy_provider.h" 12 #include "chrome/browser/policy/configuration_policy_provider.h"
13 #include "chrome/browser/policy/policy_map.h"
13 14
14 namespace policy { 15 namespace policy {
15 16
16 class AsynchronousPolicyLoader; 17 class AsynchronousPolicyLoader;
17 18
18 // Policy provider that loads policy asynchronously. Providers should subclass 19 // Policy provider that loads policy asynchronously. Providers should subclass
19 // from this class if loading the policy requires disk access or must for some 20 // from this class if loading the policy requires disk access or must for some
20 // other reason be performed on the file thread. The actual logic for loading 21 // other reason be performed on the file thread. The actual logic for loading
21 // policy is handled by a delegate passed at construction time. 22 // policy is handled by a delegate passed at construction time.
22 class AsynchronousPolicyProvider 23 class AsynchronousPolicyProvider
23 : public ConfigurationPolicyProvider, 24 : public ConfigurationPolicyProvider,
24 public base::NonThreadSafe { 25 public base::NonThreadSafe {
25 public: 26 public:
26 // Must be implemented by subclasses of the asynchronous policy provider to 27 // Must be implemented by subclasses of the asynchronous policy provider to
27 // provide the implementation details of how policy is loaded. 28 // provide the implementation details of how policy is loaded.
28 class Delegate { 29 class Delegate {
29 public: 30 public:
30 virtual ~Delegate() {} 31 virtual ~Delegate() {}
31 32
32 virtual DictionaryValue* Load() = 0; 33 virtual DictionaryValue* Load() = 0;
33 }; 34 };
34 35
35 // Assumes ownership of |loader|. 36 // Assumes ownership of |loader|.
36 AsynchronousPolicyProvider( 37 AsynchronousPolicyProvider(
37 const PolicyDefinitionList* policy_list, 38 const PolicyDefinitionList* policy_list,
39 PolicyLevel level,
40 PolicyScope scope,
38 scoped_refptr<AsynchronousPolicyLoader> loader); 41 scoped_refptr<AsynchronousPolicyLoader> loader);
39 virtual ~AsynchronousPolicyProvider(); 42 virtual ~AsynchronousPolicyProvider();
40 43
41 // ConfigurationPolicyProvider implementation. 44 // ConfigurationPolicyProvider implementation.
42 virtual bool ProvideInternal(PolicyMap* map) OVERRIDE; 45 virtual bool ProvideInternal(PolicyMap* map) OVERRIDE;
43 virtual void RefreshPolicies() OVERRIDE; 46 virtual void RefreshPolicies() OVERRIDE;
44 47
45 private: 48 private:
46 // Used to trigger a Reload on |loader| on the FILE thread. 49 // Used to trigger a Reload on |loader| on the FILE thread.
47 static void PostReloadOnFileThread(AsynchronousPolicyLoader* loader); 50 static void PostReloadOnFileThread(AsynchronousPolicyLoader* loader);
48 51
49 // Used to notify UI that a reload task has been submitted. 52 // Used to notify UI that a reload task has been submitted.
50 void OnReloadPosted(); 53 void OnReloadPosted();
51 54
52 // Callback from the loader. This is invoked whenever the loader has completed 55 // Callback from the loader. This is invoked whenever the loader has completed
53 // a reload of the policies. 56 // a reload of the policies.
54 void OnLoaderReloaded(); 57 void OnLoaderReloaded();
55 58
59 // The policy level and scope for policies loaded through this provider.
60 PolicyLevel level_;
61 PolicyScope scope_;
62
56 // The loader object used internally. 63 // The loader object used internally.
57 scoped_refptr<AsynchronousPolicyLoader> loader_; 64 scoped_refptr<AsynchronousPolicyLoader> loader_;
58 65
59 // Number of refreshes requested whose reload is still pending. Used to only 66 // Number of refreshes requested whose reload is still pending. Used to only
60 // fire notifications when all pending refreshes are done. 67 // fire notifications when all pending refreshes are done.
61 int pending_refreshes_; 68 int pending_refreshes_;
62 69
63 // Used to post tasks to self on UI. 70 // Used to post tasks to self on UI.
64 base::WeakPtrFactory<AsynchronousPolicyProvider> weak_ptr_factory_; 71 base::WeakPtrFactory<AsynchronousPolicyProvider> weak_ptr_factory_;
65 72
66 DISALLOW_COPY_AND_ASSIGN(AsynchronousPolicyProvider); 73 DISALLOW_COPY_AND_ASSIGN(AsynchronousPolicyProvider);
67 }; 74 };
68 75
69 } // namespace policy 76 } // namespace policy
70 77
71 #endif // CHROME_BROWSER_POLICY_ASYNCHRONOUS_POLICY_PROVIDER_H_ 78 #endif // CHROME_BROWSER_POLICY_ASYNCHRONOUS_POLICY_PROVIDER_H_
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