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// Copyright (c) 2011 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_BROWSER_EXTENSIONS_EXTENSION_PREFERENCE_API_H__
#define CHROME_BROWSER_EXTENSIONS_EXTENSION_PREFERENCE_API_H__
#pragma once
#include <string>
#include "chrome/browser/extensions/extension_function.h"
class Value;
class PrefTransformerInterface {
public:
virtual ~PrefTransformerInterface() {}
// Converts the representation of a preference as seen by the extension
// into a representation that is used in the pref stores of the browser.
// Returns the pref store representation in case of success or sets
// |error| and returns NULL otherwise.
// The ownership of the returned value is passed to the caller.
virtual Value* ExtensionToBrowserPref(const Value* extension_pref,
std::string* error) = 0;
// Converts the representation of the preference as stored in the browser
// into a representation that is used by the extension.
// Returns the extension representation in case of success or NULL otherwise.
// The ownership of the returned value is passed to the caller.
virtual Value* BrowserToExtensionPref(const Value* browser_pref) = 0;
};
class GetPreferenceFunction : public SyncExtensionFunction {
public:
virtual ~GetPreferenceFunction();
virtual bool RunImpl();
DECLARE_EXTENSION_FUNCTION_NAME("experimental.preferences.get")
private:
// Returns a string constant (defined in API) indicating the level of
// control this extension has on the specified preference.
const char* GetLevelOfControl(const std::string& browser_pref,
bool incognito) const;
};
class SetPreferenceFunction : public SyncExtensionFunction {
public:
virtual ~SetPreferenceFunction();
virtual bool RunImpl();
DECLARE_EXTENSION_FUNCTION_NAME("experimental.preferences.set")
};
class ClearPreferenceFunction : public SyncExtensionFunction {
public:
virtual ~ClearPreferenceFunction();
virtual bool RunImpl();
DECLARE_EXTENSION_FUNCTION_NAME("experimental.preferences.clear")
};
#endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_PREFERENCE_API_H__
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