15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)#include "components/policy/core/common/policy_service.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/values.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace policy { 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PolicyChangeRegistrar::PolicyChangeRegistrar(PolicyService* policy_service, 122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const PolicyNamespace& ns) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : policy_service_(policy_service), 142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ns_(ns) {} 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PolicyChangeRegistrar::~PolicyChangeRegistrar() { 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!callback_map_.empty()) 182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) policy_service_->RemoveObserver(ns_.domain, this); 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PolicyChangeRegistrar::Observe(const std::string& policy_name, 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const UpdateCallback& callback) { 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (callback_map_.empty()) 242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) policy_service_->AddObserver(ns_.domain, this); 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) callback_map_[policy_name] = callback; 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void PolicyChangeRegistrar::OnPolicyUpdated(const PolicyNamespace& ns, 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const PolicyMap& previous, 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const PolicyMap& current) { 312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (ns != ns_) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (CallbackMap::iterator it = callback_map_.begin(); 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) it != callback_map_.end(); ++it) { 355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const base::Value* prev = previous.GetValue(it->first); 365d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const base::Value* cur = current.GetValue(it->first); 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!base::Value::Equals(prev, cur)) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) it->second.Run(prev, cur); 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace policy 43