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Unified Diff: chrome/browser/extensions/extension_settings_api.h

Issue 7189029: Implement an initial extension settings API. (Closed) Base URL: http://git.chromium.org/git/chromium.git@trunk
Patch Set: Make clang happy Created 9 years, 4 months ago
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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
index 0000000000000000000000000000000000000000..6ddfd87170f4db89c9583cf3cec6f71398ad8de9
--- /dev/null
+++ b/chrome/browser/extensions/extension_settings_api.h
@@ -0,0 +1,78 @@
+// 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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