| // Copyright 2014 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 EXTENSIONS_BROWSER_API_STORAGE_STORAGE_API_H_ |
| #define EXTENSIONS_BROWSER_API_STORAGE_STORAGE_API_H_ |
| |
| #include <string> |
| |
| #include "base/compiler_specific.h" |
| #include "base/memory/ref_counted.h" |
| #include "extensions/browser/api/storage/settings_namespace.h" |
| #include "extensions/browser/api/storage/settings_observer.h" |
| #include "extensions/browser/extension_function.h" |
| #include "extensions/browser/value_store/value_store.h" |
| |
| namespace extensions { |
| |
| // Superclass of all settings functions. |
| class SettingsFunction : public UIThreadExtensionFunction { |
| protected: |
| SettingsFunction(); |
| ~SettingsFunction() override; |
| |
| // ExtensionFunction: |
| bool ShouldSkipQuotaLimiting() const override; |
| ResponseAction Run() override; |
| |
| // Extension settings function implementations should do their work here. |
| // The StorageFrontend makes sure this is posted to the appropriate thread. |
| virtual ResponseValue RunWithStorage(ValueStore* storage) = 0; |
| |
| // Convert the |result| of a read function to the appropriate response value. |
| // - If the |result| succeeded this will return a response object argument. |
| // - If the |result| failed will return an error object. |
| ResponseValue UseReadResult(ValueStore::ReadResult result); |
| |
| // Handles the |result| of a write function. |
| // - If the |result| succeeded this will send out change notification(s), if |
| // appropriate, and return no arguments. |
| // - If the |result| failed will return an error object. |
| ResponseValue UseWriteResult(ValueStore::WriteResult result); |
| |
| private: |
| // Called via PostTask from Run. Calls RunWithStorage and then |
| // SendResponse with its success value. |
| void AsyncRunWithStorage(ValueStore* storage); |
| |
| // The settings namespace the call was for. For example, SYNC if the API |
| // call was chrome.settings.experimental.sync..., LOCAL if .local, etc. |
| settings_namespace::Namespace settings_namespace_; |
| |
| // Observers, cached so that it's only grabbed from the UI thread. |
| scoped_refptr<SettingsObserverList> observers_; |
| }; |
| |
| class StorageStorageAreaGetFunction : public SettingsFunction { |
| public: |
| DECLARE_EXTENSION_FUNCTION("storage.get", STORAGE_GET) |
| |
| protected: |
| ~StorageStorageAreaGetFunction() override {} |
| |
| // SettingsFunction: |
| ResponseValue RunWithStorage(ValueStore* storage) override; |
| }; |
| |
| class StorageStorageAreaSetFunction : public SettingsFunction { |
| public: |
| DECLARE_EXTENSION_FUNCTION("storage.set", STORAGE_SET) |
| |
| protected: |
| ~StorageStorageAreaSetFunction() override {} |
| |
| // SettingsFunction: |
| ResponseValue RunWithStorage(ValueStore* storage) override; |
| |
| // ExtensionFunction: |
| void GetQuotaLimitHeuristics(QuotaLimitHeuristics* heuristics) const override; |
| }; |
| |
| class StorageStorageAreaRemoveFunction : public SettingsFunction { |
| public: |
| DECLARE_EXTENSION_FUNCTION("storage.remove", STORAGE_REMOVE) |
| |
| protected: |
| ~StorageStorageAreaRemoveFunction() override {} |
| |
| // SettingsFunction: |
| ResponseValue RunWithStorage(ValueStore* storage) override; |
| |
| // ExtensionFunction: |
| void GetQuotaLimitHeuristics(QuotaLimitHeuristics* heuristics) const override; |
| }; |
| |
| class StorageStorageAreaClearFunction : public SettingsFunction { |
| public: |
| DECLARE_EXTENSION_FUNCTION("storage.clear", STORAGE_CLEAR) |
| |
| protected: |
| ~StorageStorageAreaClearFunction() override {} |
| |
| // SettingsFunction: |
| ResponseValue RunWithStorage(ValueStore* storage) override; |
| |
| // ExtensionFunction: |
| void GetQuotaLimitHeuristics(QuotaLimitHeuristics* heuristics) const override; |
| }; |
| |
| class StorageStorageAreaGetBytesInUseFunction : public SettingsFunction { |
| public: |
| DECLARE_EXTENSION_FUNCTION("storage.getBytesInUse", STORAGE_GETBYTESINUSE) |
| |
| protected: |
| ~StorageStorageAreaGetBytesInUseFunction() override {} |
| |
| // SettingsFunction: |
| ResponseValue RunWithStorage(ValueStore* storage) override; |
| }; |
| |
| } // namespace extensions |
| |
| #endif // EXTENSIONS_BROWSER_API_STORAGE_STORAGE_API_H_ |