chrome/browser/chromeos/policy/user_cloud_policy_manager_factory_chromeos.h

   1 // Copyright (c) 2013 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_CHROMEOS_POLICY_USER_CLOUD_POLICY_MANAGER_FACTORY_CHROMEOS_H_
   6 #define CHROME_BROWSER_CHROMEOS_POLICY_USER_CLOUD_POLICY_MANAGER_FACTORY_CHROMEOS_H_
   7
   8 #include <map>
   9
  10 #include "base/basictypes.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "base/memory/singleton.h"
  13 #include "components/browser_context_keyed_service/browser_context_keyed_base_factory.h"
  14
  15 class Profile;
  16
  17 namespace base {
  18 class SequencedTaskRunner;
  19 }
  20
  21 namespace content {
  22 class BrowserContext;
  23 }
  24
  25 namespace policy {
  26
  27 class UserCloudPolicyManagerChromeOS;
  28
  29 // BrowserContextKeyedBaseFactory implementation
  30 // for UserCloudPolicyManagerChromeOS instances that initialize per-profile
  31 // cloud policy settings on ChromeOS.
  32 //
  33 // UserCloudPolicyManagerChromeOS is handled different than other
  34 // BrowserContextKeyedServices because it is a dependency of PrefService.
  35 // Therefore, lifetime of instances is managed by Profile, Profile startup code
  36 // invokes CreateForProfile() explicitly, takes ownership, and the instance
  37 // is only deleted after PrefService destruction.
  38 //
  39 // TODO(mnissler): Remove the special lifetime management in favor of
  40 // PrefService directly depending on UserCloudPolicyManagerChromeOS once the
  41 // former has been converted to a BrowserContextKeyedService.
  42 // See also http://crbug.com/131843 and http://crbug.com/131844.
  43 class UserCloudPolicyManagerFactoryChromeOS
  44     : public BrowserContextKeyedBaseFactory {
  45  public:
  46   // Returns an instance of the UserCloudPolicyManagerFactoryChromeOS singleton.
  47   static UserCloudPolicyManagerFactoryChromeOS* GetInstance();
  48
  49   // Returns the UserCloudPolicyManagerChromeOS instance associated with
  50   // |profile|.
  51   static UserCloudPolicyManagerChromeOS* GetForProfile(Profile* profile);
  52
  53   // Creates an instance for |profile|. Note that the caller is responsible for
  54   // managing the lifetime of the instance. Subsequent calls to GetForProfile()
  55   // will return the created instance as long as it lives.
  56   //
  57   // If |force_immediate_load| is true, policy is loaded synchronously from
  58   // UserCloudPolicyStore at startup.
  59   static scoped_ptr<UserCloudPolicyManagerChromeOS> CreateForProfile(
  60       Profile* profile,
  61       bool force_immediate_load,
  62       scoped_refptr<base::SequencedTaskRunner> background_task_runner);
  63
  64  private:
  65   friend struct DefaultSingletonTraits<UserCloudPolicyManagerFactoryChromeOS>;
  66
  67   UserCloudPolicyManagerFactoryChromeOS();
  68   virtual ~UserCloudPolicyManagerFactoryChromeOS();
  69
  70   // See comments for the static versions above.
  71   UserCloudPolicyManagerChromeOS* GetManagerForProfile(Profile* profile);
  72   scoped_ptr<UserCloudPolicyManagerChromeOS> CreateManagerForProfile(
  73       Profile* profile,
  74       bool force_immediate_load,
  75       scoped_refptr<base::SequencedTaskRunner> background_task_runner);
  76
  77   // BrowserContextKeyedBaseFactory:
  78   virtual void BrowserContextShutdown(
  79       content::BrowserContext* context) OVERRIDE;
  80   virtual void BrowserContextDestroyed(
  81       content::BrowserContext* context) OVERRIDE;
  82   virtual void SetEmptyTestingFactory(
  83       content::BrowserContext* context) OVERRIDE;
  84   virtual void CreateServiceNow(content::BrowserContext* context) OVERRIDE;
  85
  86   typedef std::map<Profile*, UserCloudPolicyManagerChromeOS*> ManagerMap;
  87   ManagerMap managers_;
  88
  89   DISALLOW_COPY_AND_ASSIGN(UserCloudPolicyManagerFactoryChromeOS);
  90 };
  91
  92 }  // namespace policy
  93
  94 #endif  // CHROME_BROWSER_CHROMEOS_POLICY_USER_CLOUD_POLICY_MANAGER_FACTORY_CHROMEOS_H_