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| 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CHROME_BROWSER_CHARACTER_ENCODING_H_ | 5 #ifndef CHROME_BROWSER_CHARACTER_ENCODING_H_ |
| 6 #define CHROME_BROWSER_CHARACTER_ENCODING_H_ | 6 #define CHROME_BROWSER_CHARACTER_ENCODING_H_ |
| 7 | 7 |
| 8 #include <string> | 8 #include <string> |
| 9 #include <vector> | |
| 10 | 9 |
| 11 #include "base/macros.h" | 10 // Return canonical encoding name according to the encoding alias name. |
| 12 #include "base/strings/string16.h" | 11 // TODO(jinsukkim): Move this to somewhere under content/. |
| 13 | 12 std::string GetCanonicalEncodingNameByAliasName(const std::string& alias_name); |
| 14 class CharacterEncoding { | |
| 15 public: | |
| 16 // Enumeration of the types of Browser encoding name we | |
| 17 // currently support. This is defined outside of Browser | |
| 18 // to avoid cyclical dependencies. | |
| 19 | |
| 20 // Structure to save encoding information. | |
| 21 struct EncodingInfo { | |
| 22 explicit EncodingInfo(int id); | |
| 23 // Gets string key of EncodingInfo. With this method, we can use | |
| 24 // l10n_util::SortVectorWithStringKey to sort the encoding menu items | |
| 25 // by current locale character sequence. We need to keep the order within | |
| 26 // encoding category name, that's why we use category name as key. | |
| 27 const base::string16& GetStringKey() const { return encoding_category_name;
} | |
| 28 | |
| 29 // Encoding command id. | |
| 30 int encoding_id; | |
| 31 // Encoding display name. | |
| 32 base::string16 encoding_display_name; | |
| 33 // Encoding category name. | |
| 34 base::string16 encoding_category_name; | |
| 35 }; | |
| 36 | |
| 37 // Return canonical encoding name according to the command ID. | |
| 38 // THIS FUNCTION IS NOT THREADSAFE. You must run this function | |
| 39 // only in UI thread. | |
| 40 static std::string GetCanonicalEncodingNameByCommandId(int id); | |
| 41 | |
| 42 // Return display name of canonical encoding according to the command | |
| 43 // ID. THIS FUNCTION IS NOT THREADSAFE. You must run this function | |
| 44 // only in UI thread. | |
| 45 static base::string16 GetCanonicalEncodingDisplayNameByCommandId(int id); | |
| 46 | |
| 47 // Return count number of all supported canonical encoding. | |
| 48 static int GetSupportCanonicalEncodingCount(); | |
| 49 | |
| 50 // Return canonical encoding name according to the index, which starts | |
| 51 // from zero to GetSupportCanonicalEncodingCount() - 1. THIS FUNCTION | |
| 52 // IS NOT THREADSAFE. You must run this function only in UI thread. | |
| 53 static std::string GetCanonicalEncodingNameByIndex(int index); | |
| 54 | |
| 55 // Return display name of canonical encoding according to the index, | |
| 56 // which starts from zero to GetSupportCanonicalEncodingCount() - 1. | |
| 57 // THIS FUNCTION IS NOT THREADSAFE. You must run this function | |
| 58 // only in UI thread. | |
| 59 static base::string16 GetCanonicalEncodingDisplayNameByIndex(int index); | |
| 60 | |
| 61 // Return encoding command id according to the index, which starts from | |
| 62 // zero to GetSupportCanonicalEncodingCount() - 1. Otherwise returns 0. | |
| 63 static int GetEncodingCommandIdByIndex(int index); | |
| 64 | |
| 65 // Return canonical encoding name according to the encoding alias name. THIS | |
| 66 // FUNCTION IS NOT THREADSAFE. You must run this function only in UI thread. | |
| 67 static std::string GetCanonicalEncodingNameByAliasName( | |
| 68 const std::string& alias_name); | |
| 69 | |
| 70 // Returns the pointer of a vector of EncodingInfos corresponding to | |
| 71 // encodings to display in the encoding menu. The locale-dependent static | |
| 72 // encodings come at the top of the list and recently selected encodings | |
| 73 // come next. Finally, the rest of encodings are listed. | |
| 74 // The vector will be created and destroyed by CharacterEncoding. | |
| 75 // The returned std::vector is maintained by this class. The parameter | |
| 76 // |locale| points to the current application (UI) locale. The parameter | |
| 77 // |locale_encodings| is string of static encodings list which is from the | |
| 78 // corresponding string resource that is stored in the resource bundle. | |
| 79 // The parameter |recently_select_encodings| is string of encoding list which | |
| 80 // is from user recently selected. THIS FUNCTION IS NOT THREADSAFE. You must | |
| 81 // run this function only in UI thread. | |
| 82 static const std::vector<EncodingInfo>* GetCurrentDisplayEncodings( | |
| 83 const std::string& locale, | |
| 84 const std::string& locale_encodings, | |
| 85 const std::string& recently_select_encodings); | |
| 86 | |
| 87 // This function is for updating |original_selected_encoding_list| with a | |
| 88 // |new_selected_encoding_id|. If the encoding is already in the original | |
| 89 // list, then returns false. Otherwise |selected_encoding_list| will return a | |
| 90 // new string for user selected encoding short list and function returns true. | |
| 91 static bool UpdateRecentlySelectedEncoding( | |
| 92 const std::string& original_selected_encodings, | |
| 93 int new_selected_encoding_id, | |
| 94 std::string* selected_encodings); | |
| 95 | |
| 96 // Get encoding command id according to input encoding name. If the name is | |
| 97 // valid, return corresponding encoding command id. Otherwise return 0; | |
| 98 static int GetCommandIdByCanonicalEncodingName( | |
| 99 const std::string& encoding_name); | |
| 100 | |
| 101 private: | |
| 102 // Disallow instantiating it since this class only contains static methods. | |
| 103 DISALLOW_IMPLICIT_CONSTRUCTORS(CharacterEncoding); | |
| 104 }; | |
| 105 | 13 |
| 106 #endif // CHROME_BROWSER_CHARACTER_ENCODING_H_ | 14 #endif // CHROME_BROWSER_CHARACTER_ENCODING_H_ |
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