Enable user policy handling through the new cloud policy stack.

chrome/browser/policy/user_cloud_policy_manager.h

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_POLICY_USER_CLOUD_POLICY_MANAGER_H_
+#define CHROME_BROWSER_POLICY_USER_CLOUD_POLICY_MANAGER_H_
+#pragma once
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "chrome/browser/policy/cloud_policy_client.h"
+#include "chrome/browser/policy/cloud_policy_constants.h"
+#include "chrome/browser/policy/cloud_policy_store.h"
+#include "chrome/browser/policy/configuration_policy_provider.h"
+
+class PrefService;
+
+namespace policy {
+
+class CloudPolicyRefreshScheduler;
+class CloudPolicyService;
+class DeviceManagementService;
+
+// UserCloudPolicyManager keeps track of all things user policy, drives the
+// corresponding cloud policy service and publishes policy through the
+// ConfigurationPolicyProvider interface.
+class UserCloudPolicyManager : public ConfigurationPolicyProvider,
+                               public CloudPolicyClient::Observer,
+                               public CloudPolicyStore::Observer {
+ public:
+  // If |wait_for_policy| fetch is true, IsInitializationComplete() will return
+  // false as long as there hasn't been a successful policy fetch.
+  UserCloudPolicyManager(const PolicyDefinitionList* policy_list,
+                         scoped_ptr<CloudPolicyStore> store,
+                         bool wait_for_policy_fetch);
+  virtual ~UserCloudPolicyManager();
+
+#if defined(OS_CHROMEOS)
+  // Creates a UserCloudPolicyService instance for the Chrome OS platform.
+  static scoped_ptr<UserCloudPolicyManager> Create(bool wait_for_policy_fetch);
+#endif
+
+  // Initializes the cloud connection. |prefs| and |service| must stay valid
+  // until Shutdown() gets called.
+  void Initialize(PrefService* prefs,
+                  DeviceManagementService* service,
+                  UserAffiliation user_affiliation);
+  void Shutdown();
+
+  // Cancels waiting for the policy fetch and flags the
+  // ConfigurationPolicyProvider ready (assuming all other initialization tasks
+  // have completed).
+  void CancelWaitForPolicyFetch();
+
+  CloudPolicyService* cloud_policy_service() { return service_.get(); }
+
+  // ConfigurationPolicyProvider:
+  virtual bool IsInitializationComplete() const OVERRIDE;
+  virtual void RefreshPolicies() OVERRIDE;
+
+  // CloudPolicyClient::Observer:
+  virtual void OnPolicyFetched(CloudPolicyClient* client) OVERRIDE;
+  virtual void OnRegistrationStateChanged(CloudPolicyClient* client) OVERRIDE;
+  virtual void OnClientError(CloudPolicyClient* client) OVERRIDE;
+
+  // CloudPolicyStore::Observer:
+  virtual void OnStoreLoaded(CloudPolicyStore* store) OVERRIDE;
+  virtual void OnStoreError(CloudPolicyStore* store) OVERRIDE;
+
+ private:
+  // Check whether fully initialized and if so, publish policy by calling
+  // ConfigurationPolicyStore::UpdatePolicy().
+  void CheckAndPublishPolicy();
+
+  // Completion handler for the explicit policy fetch triggered on startup in
+  // case |wait_for_policy_fetch_| is true.
+  void OnInitialPolicyFetchComplete();
+
+  // Completion handler for policy refresh operations.
+  void OnRefreshComplete();
+
+  // Whether to wait for a policy fetch to complete before reporting
+  // IsInitializationComplete().
+  bool wait_for_policy_fetch_;
+
+  // Whether there's a policy refresh operation pending, in which case all
+  // policy update notifications are deferred until after it completes.
+  bool wait_for_policy_refresh_;
+
+  scoped_ptr<CloudPolicyStore> store_;
+  scoped_ptr<CloudPolicyService> service_;
+  scoped_ptr<CloudPolicyRefreshScheduler> refresh_scheduler_;
+
+  // The pref service to pass to the refresh scheduler on initialization.
+  PrefService* prefs_;
+
+  DISALLOW_COPY_AND_ASSIGN(UserCloudPolicyManager);
+};
+
+}  // namespace policy
+
+#endif  // CHROME_BROWSER_POLICY_USER_CLOUD_POLICY_MANAGER_H_