Implementation of managed policy: Policy Abstraction

chrome/browser/configuration_policy_pref_store.cc

+// Copyright (c) 2010 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/configuration_policy_pref_store.h"
+
+#include "base/logging.h"
+#include "base/values.h"
+#include "chrome/browser/configuration_policy_provider.h"
+#include "chrome/common/pref_names.h"
+
+const ConfigurationPolicyPrefStore::PolicyToPreferenceMapEntry
+ConfigurationPolicyPrefStore::simple_policy_map_[] = {
+  { Value::TYPE_STRING, kPolicyHomePage,  prefs::kHomePage },
+  { Value::TYPE_BOOLEAN, kPolicyHomepageIsNewTabPage,
+      prefs::kHomePageIsNewTabPage },
+  { Value::TYPE_INTEGER, kPolicyCookiesEnabled, prefs::kCookieBehavior }
+};
+
+ConfigurationPolicyPrefStore::ConfigurationPolicyPrefStore(
+    ConfigurationPolicyProvider* provider)
+    : provider_(provider),
+      prefs_(new DictionaryValue()) {
+}
+
+PrefStore::PrefReadError ConfigurationPolicyPrefStore::ReadPrefs() {
+  return provider_->Provide(this) ? PrefStore::PREF_READ_ERROR_NONE :
+      PrefStore::PREF_READ_ERROR_OTHER;
+}
+
+void ConfigurationPolicyPrefStore::Apply(PolicyType policy, Value* value) {
+  const PolicyToPreferenceMapEntry* end =
+      simple_policy_map_ + arraysize(simple_policy_map_);
+  for (const PolicyToPreferenceMapEntry* current = simple_policy_map_;
+       current != end; ++current) {
+    if (current->policy_type == policy) {
+      DCHECK(current->value_type == value->GetType());
+      prefs_->Set(current->preference_path, value);
+      return;
+    }
+  }
+
+  // Other policy implementations go here.
+  NOTIMPLEMENTED();
+}
+