Kristian Monsen | 72a454c | 2011-05-31 20:30:28 +0100 | [diff] [blame] | 1 | // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef CHROME_BROWSER_EXTENSIONS_EXTERNAL_PREF_EXTENSION_LOADER_H_ |
| 6 | #define CHROME_BROWSER_EXTENSIONS_EXTERNAL_PREF_EXTENSION_LOADER_H_ |
| 7 | #pragma once |
| 8 | |
| 9 | #include "chrome/browser/extensions/external_extension_loader.h" |
| 10 | |
| 11 | #include <string> |
| 12 | |
Kristian Monsen | ddb351d | 2011-06-28 21:49:31 +0100 | [diff] [blame] | 13 | #include "base/memory/scoped_ptr.h" |
Kristian Monsen | 72a454c | 2011-05-31 20:30:28 +0100 | [diff] [blame] | 14 | #include "base/values.h" |
| 15 | |
| 16 | // A specialization of the ExternalExtensionLoader that uses a json file to |
| 17 | // look up which external extensions are registered. |
| 18 | // Instances of this class are expected to be created and destroyed on the UI |
| 19 | // thread and they are expecting public method calls from the UI thread. |
| 20 | class ExternalPrefExtensionLoader : public ExternalExtensionLoader { |
| 21 | public: |
| 22 | // |base_path_key| is the directory containing the external_extensions.json |
| 23 | // file. Relative file paths to extension files are resolved relative |
| 24 | // to this path. |
| 25 | explicit ExternalPrefExtensionLoader(int base_path_key); |
| 26 | |
| 27 | virtual const FilePath GetBaseCrxFilePath(); |
| 28 | |
| 29 | protected: |
| 30 | virtual void StartLoading(); |
| 31 | |
| 32 | private: |
| 33 | friend class base::RefCountedThreadSafe<ExternalExtensionLoader>; |
| 34 | |
| 35 | virtual ~ExternalPrefExtensionLoader() {} |
| 36 | |
| 37 | void LoadOnFileThread(); |
| 38 | |
| 39 | int base_path_key_; |
| 40 | FilePath base_path_; |
| 41 | |
| 42 | DISALLOW_COPY_AND_ASSIGN(ExternalPrefExtensionLoader); |
| 43 | }; |
| 44 | |
| 45 | // A simplified version of ExternalPrefExtensionLoader that loads the dictionary |
| 46 | // from json data specified in a string. |
| 47 | class ExternalTestingExtensionLoader : public ExternalExtensionLoader { |
| 48 | public: |
| 49 | ExternalTestingExtensionLoader( |
| 50 | const std::string& json_data, |
| 51 | const FilePath& fake_base_path); |
| 52 | |
| 53 | virtual const FilePath GetBaseCrxFilePath(); |
| 54 | |
| 55 | protected: |
| 56 | virtual void StartLoading(); |
| 57 | |
| 58 | private: |
| 59 | friend class base::RefCountedThreadSafe<ExternalExtensionLoader>; |
| 60 | |
| 61 | virtual ~ExternalTestingExtensionLoader(); |
| 62 | |
| 63 | FilePath fake_base_path_; |
| 64 | scoped_ptr<DictionaryValue> testing_prefs_; |
| 65 | |
| 66 | DISALLOW_COPY_AND_ASSIGN(ExternalTestingExtensionLoader); |
| 67 | }; |
| 68 | |
| 69 | #endif // CHROME_BROWSER_EXTENSIONS_EXTERNAL_PREF_EXTENSION_LOADER_H_ |