text: // 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.
  
  // Implementation of the Chrome Extensions Managed Mode API.
  
  #include "chrome/browser/extensions/api/managed_mode/managed_mode_api.h"
  
  #include <string>
  
  #include "base/bind.h"
  #include "base/json/json_writer.h"
  #include "chrome/browser/browser_process.h"
  #include "chrome/browser/extensions/api/preference/preference_api_constants.h"
  #include "chrome/browser/extensions/event_router.h"
  #include "chrome/browser/extensions/extension_system.h"
  #include "chrome/browser/managed_mode/managed_mode.h"
  #include "chrome/browser/prefs/pref_service.h"
  #include "chrome/browser/profiles/profile.h"
  #include "chrome/common/chrome_notification_types.h"
  #include "chrome/common/pref_names.h"
  #include "content/public/browser/notification_details.h"
  
  #if defined(ENABLE_CONFIGURATION_POLICY)
  #include "chrome/browser/policy/managed_mode_policy_provider.h"
  #endif
  
  namespace {
  
  // Event that is fired when we enter or leave managed mode.
  const char kChangeEventName[] = "managedModePrivate.onChange";
  
  // Key to report whether the attempt to enter managed mode succeeded.
  const char kEnterSuccessKey[] = "success";
  
  }  // namespace
  
  namespace keys = extensions::preference_api_constants;
  
  namespace extensions {
  
  ExtensionManagedModeEventRouter::ExtensionManagedModeEventRouter(
      Profile* profile) : profile_(profile) {
  }
  
  void ExtensionManagedModeEventRouter::Init() {
    registrar_.Init(g_browser_process->local_state());
    registrar_.Add(prefs::kInManagedMode, this);
  }
  
  ExtensionManagedModeEventRouter::~ExtensionManagedModeEventRouter() {
  }
  
  void ExtensionManagedModeEventRouter::Observe(
      int type,
      const content::NotificationSource& source,
      const content::NotificationDetails& details) {
    DCHECK_EQ(chrome::NOTIFICATION_PREF_CHANGED, type);
    const std::string& pref_name =
        *content::Details<std::string>(details).ptr();
    DCHECK_EQ(std::string(prefs::kInManagedMode), pref_name);
  
    DictionaryValue* dict = new DictionaryValue();
    dict->SetBoolean(
        keys::kValue,
        g_browser_process->local_state()->GetBoolean(prefs::kInManagedMode));
    scoped_ptr<ListValue> args(new ListValue());
    args->Set(0, dict);
  
    extensions::EventRouter* event_router =
        extensions::ExtensionSystem::Get(profile_)->event_router();
    event_router->DispatchEventToRenderers(kChangeEventName, args.Pass(), NULL,
                                           GURL(),
                                           extensions::EventFilteringInfo());
  }
  
  GetManagedModeFunction::~GetManagedModeFunction() { }
  
  bool GetManagedModeFunction::RunImpl() {
    bool in_managed_mode = ManagedMode::IsInManagedMode();
  
    scoped_ptr<DictionaryValue> result(new DictionaryValue);
    result->SetBoolean(keys::kValue, in_managed_mode);
    SetResult(result.release());
    return true;
  }
  
  EnterManagedModeFunction::~EnterManagedModeFunction() { }
  
  bool EnterManagedModeFunction::RunImpl() {
    ManagedMode::EnterManagedMode(
        profile(),
        base::Bind(&EnterManagedModeFunction::SendResult, this));
    return true;
  }
  
  void EnterManagedModeFunction::SendResult(bool success) {
    scoped_ptr<DictionaryValue> result(new DictionaryValue);
    result->SetBoolean(kEnterSuccessKey, success);
    SetResult(result.release());
    SendResponse(true);
  }
  
  GetPolicyFunction::~GetPolicyFunction() { }
  
  bool GetPolicyFunction::RunImpl() {
    std::string key;
    EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, &key));
  #if defined(ENABLE_CONFIGURATION_POLICY)
    policy::ManagedModePolicyProvider* policy_provider =
        profile_->GetManagedModePolicyProvider();
    const base::Value* policy = policy_provider->GetPolicy(key);
    if (policy)
      SetResult(policy->DeepCopy());
  #endif
    return true;
  }
  
  SetPolicyFunction::~SetPolicyFunction() { }
  
  bool SetPolicyFunction::RunImpl() {
    std::string key;
    EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, &key));
    base::Value* value = NULL;
    EXTENSION_FUNCTION_VALIDATE(args_->Get(1, &value));
  #if defined(ENABLE_CONFIGURATION_POLICY)
    policy::ManagedModePolicyProvider* policy_provider =
        profile_->GetManagedModePolicyProvider();
    policy_provider->SetPolicy(key, value);
  #endif
    return true;
  }
  
  }  // namespace extensions
  