Index: chrome/browser/extensions/extension_settings_api.h |
diff --git a/chrome/browser/extensions/extension_settings_api.h b/chrome/browser/extensions/extension_settings_api.h |
new file mode 100644 |
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+++ b/chrome/browser/extensions/extension_settings_api.h |
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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_ |