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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_SETTINGS_API_H_
#define CHROME_BROWSER_EXTENSIONS_EXTENSION_SETTINGS_API_H_
#pragma once
#include "base/compiler_specific.h"
#include "chrome/browser/extensions/extension_function.h"
#include "chrome/browser/extensions/extension_settings.h"
#include "chrome/browser/extensions/extension_settings_storage.h"
// Superclass of all settings functions.
class SettingsFunction : public AsyncExtensionFunction {
public:
// Extension settings function implementations should do their work here, and
// either run a StorageResultCallback or fill the function result / call
// SendResponse themselves.
// The exception is that implementations can return false to immediately
// call SendResponse(false), for compliance with EXTENSION_FUNCTION_VALIDATE.
virtual bool RunWithStorageImpl(ExtensionSettingsStorage* storage) = 0;
virtual bool RunImpl() OVERRIDE;
// Callback from all storage methods (Get/Set/Remove/Clear) which sets the
// appropriate fields of the extension function (result/error) and sends a
// response.
// Declared here to access to the protected members of ExtensionFunction.
class StorageResultCallback : public ExtensionSettingsStorage::Callback {
public:
explicit StorageResultCallback(SettingsFunction* settings_function);
virtual ~StorageResultCallback();
virtual void OnSuccess(DictionaryValue* settings) OVERRIDE;
virtual void OnFailure(const std::string& message) OVERRIDE;
private:
scoped_refptr<SettingsFunction> settings_function_;
};
private:
// Callback method from GetStorage(); delegates to RunWithStorageImpl.
void RunWithStorage(ExtensionSettingsStorage* storage);
};
class GetSettingsFunction : public SettingsFunction {
public:
DECLARE_EXTENSION_FUNCTION_NAME("experimental.settings.get");
protected:
virtual bool RunWithStorageImpl(ExtensionSettingsStorage* storage) OVERRIDE;
};
class SetSettingsFunction : public SettingsFunction {
public:
DECLARE_EXTENSION_FUNCTION_NAME("experimental.settings.set");
protected:
virtual bool RunWithStorageImpl(ExtensionSettingsStorage* storage) OVERRIDE;
};
class RemoveSettingsFunction : public SettingsFunction {
public:
DECLARE_EXTENSION_FUNCTION_NAME("experimental.settings.remove");
protected:
virtual bool RunWithStorageImpl(ExtensionSettingsStorage* storage) OVERRIDE;
};
class ClearSettingsFunction : public SettingsFunction {
public:
DECLARE_EXTENSION_FUNCTION_NAME("experimental.settings.clear");
protected:
virtual bool RunWithStorageImpl(ExtensionSettingsStorage* storage) OVERRIDE;
};
#endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_SETTINGS_API_H_
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