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// 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.
#ifndef CHROME_TEST_TESTING_PREF_SERVICE_H_
#define CHROME_TEST_TESTING_PREF_SERVICE_H_
#pragma once
#include "chrome/browser/prefs/pref_service.h"
class CommandLine;
namespace policy {
class ConfigurationPolicyProvider;
}
class PrefStore;
// A PrefService subclass for testing. It operates totally in memory and
// provides additional API for manipulating preferences at the different levels
// (managed, extension, user) conveniently.
class TestingPrefService : public PrefService {
public:
// Subclass to allow directly setting PrefStores.
class TestingPrefValueStore : public PrefValueStore {
public:
TestingPrefValueStore(PrefStore* managed_prefs,
PrefStore* device_management_prefs,
PrefStore* extension_prefs,
PrefStore* command_line_prefs,
PrefStore* user_prefs,
PrefStore* recommended_prefs,
PrefStore* default_prefs);
};
// Create an empty instance.
TestingPrefService();
// Create an instance that has a managed PrefStore and a command- line
// PrefStore. |managed_platform_provider| contains the provider with which to
// initialize the managed platform PrefStore. If it is NULL, then a
// DummyPrefStore will be created. |device_management_provider| contains the
// provider with which to initialize the device management
// PrefStore. |command_line| contains the provider with which to initialize
// the command line PrefStore. If it is NULL then a DummyPrefStore will be
// created as the command line PrefStore.
TestingPrefService(
policy::ConfigurationPolicyProvider* managed_platform_provider,
policy::ConfigurationPolicyProvider* device_management_provider,
CommandLine* command_line);
// Read the value of a preference from the managed layer. Returns NULL if the
// preference is not defined at the managed layer.
const Value* GetManagedPref(const char* path);
// Set a preference on the managed layer and fire observers if the preference
// changed. Assumes ownership of |value|.
void SetManagedPref(const char* path, Value* value);
// Clear the preference on the managed layer and fire observers if the
// preference has been defined previously.
void RemoveManagedPref(const char* path);
// Set a preference on the managed layer. Assumes ownership of |value|.
// We don't fire observers for each change because in the real code, the
// notification is sent after all the prefs have been loaded. See
// ConfigurationPolicyPrefStore::ReadPrefs().
void SetManagedPrefWithoutNotification(const char* path, Value* value);
// Clear the preference on the managed layer.
// We don't fire observers for each change because in the real code, the
// notification is sent after all the prefs have been loaded. See
// ConfigurationPolicyPrefStore::ReadPrefs().
void RemoveManagedPrefWithoutNotification(const char* path);
// Similar to the above, but for user preferences.
const Value* GetUserPref(const char* path);
void SetUserPref(const char* path, Value* value);
void RemoveUserPref(const char* path);
private:
// Creates a ConfigurationPolicyPrefStore based on the provided
// |provider| or a DummyPrefStore if |provider| is NULL.
PrefStore* CreatePolicyPrefStoreFromProvider(
policy::ConfigurationPolicyProvider* provider);
// Creates a CommandLinePrefStore based on the supplied
// |command_line| or a DummyPrefStore if |command_line| is NULL.
PrefStore* CreateCommandLinePrefStore(CommandLine* command_line);
// Reads the value of the preference indicated by |path| from |pref_store|.
// Returns NULL if the preference was not found.
const Value* GetPref(PrefStore* pref_store, const char* path);
// Sets the value for |path| in |pref_store|.
void SetPref(PrefStore* pref_store, const char* path, Value* value);
// Removes the preference identified by |path| from |pref_store|.
void RemovePref(PrefStore* pref_store, const char* path);
// Pointers to the pref stores our value store uses.
PrefStore* managed_platform_prefs_; // weak
PrefStore* device_management_prefs_; // weak
PrefStore* user_prefs_; // weak
PrefStore* default_prefs_; // weak
DISALLOW_COPY_AND_ASSIGN(TestingPrefService);
};
#endif // CHROME_TEST_TESTING_PREF_SERVICE_H_
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