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// 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.
#include "chrome/browser/policy/policy_service.h"
#include "base/values.h"
namespace policy {
PolicyNamespace::PolicyNamespace() {}
PolicyNamespace::PolicyNamespace(PolicyDomain domain,
const std::string& component_id)
: domain(domain),
component_id(component_id) {}
PolicyNamespace::PolicyNamespace(const PolicyNamespace& other)
: domain(other.domain),
component_id(other.component_id) {}
PolicyNamespace::~PolicyNamespace() {}
PolicyNamespace& PolicyNamespace::operator=(const PolicyNamespace& other) {
domain = other.domain;
component_id = other.component_id;
return *this;
}
bool PolicyNamespace::operator<(const PolicyNamespace& other) const {
return domain < other.domain ||
(domain == other.domain && component_id < other.component_id);
}
bool PolicyNamespace::operator==(const PolicyNamespace& other) const {
return domain == other.domain && component_id == other.component_id;
}
bool PolicyNamespace::operator!=(const PolicyNamespace& other) const {
return !(*this == other);
}
PolicyChangeRegistrar::PolicyChangeRegistrar(PolicyService* policy_service,
const PolicyNamespace& ns)
: policy_service_(policy_service),
ns_(ns) {}
PolicyChangeRegistrar::~PolicyChangeRegistrar() {
if (!callback_map_.empty())
policy_service_->RemoveObserver(ns_.domain, this);
}
void PolicyChangeRegistrar::Observe(const std::string& policy_name,
const UpdateCallback& callback) {
if (callback_map_.empty())
policy_service_->AddObserver(ns_.domain, this);
callback_map_[policy_name] = callback;
}
void PolicyChangeRegistrar::OnPolicyUpdated(const PolicyNamespace& ns,
const PolicyMap& previous,
const PolicyMap& current) {
if (ns != ns_)
return;
for (CallbackMap::iterator it = callback_map_.begin();
it != callback_map_.end(); ++it) {
const Value* prev = previous.GetValue(it->first);
const Value* cur = current.GetValue(it->first);
if (!base::Value::Equals(prev, cur))
it->second.Run(prev, cur);
}
}
} // namespace policy
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