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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/chromeos/policy/proxy_policy_provider.h"
namespace policy {
ProxyPolicyProvider::ProxyPolicyProvider() : delegate_(NULL) {}
ProxyPolicyProvider::~ProxyPolicyProvider() {
DCHECK(!delegate_);
}
void ProxyPolicyProvider::SetDelegate(ConfigurationPolicyProvider* delegate) {
if (delegate_)
delegate_->RemoveObserver(this);
delegate_ = delegate;
if (delegate_) {
delegate_->AddObserver(this);
OnUpdatePolicy(delegate_);
} else {
UpdatePolicy(scoped_ptr<PolicyBundle>(new PolicyBundle()));
}
}
void ProxyPolicyProvider::Shutdown() {
// Note: the delegate is not owned by the proxy provider, so this call is not
// forwarded. The same applies for the Init() call.
// Just drop the delegate without propagating updates here.
if (delegate_) {
delegate_->RemoveObserver(this);
delegate_ = NULL;
}
ConfigurationPolicyProvider::Shutdown();
}
void ProxyPolicyProvider::RefreshPolicies() {
if (delegate_) {
delegate_->RefreshPolicies();
} else {
// Subtle: if a RefreshPolicies() call comes after Shutdown() then the
// current bundle should be served instead. This also does the right thing
// if SetDelegate() was never called before.
scoped_ptr<PolicyBundle> bundle(new PolicyBundle());
bundle->CopyFrom(policies());
UpdatePolicy(bundle.Pass());
}
}
void ProxyPolicyProvider::OnUpdatePolicy(
ConfigurationPolicyProvider* provider) {
DCHECK_EQ(delegate_, provider);
scoped_ptr<PolicyBundle> bundle(new PolicyBundle());
bundle->CopyFrom(delegate_->policies());
UpdatePolicy(bundle.Pass());
}
} // namespace policy
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