chrome/browser/ui/webui/options/chromeos/cros_language_options_handler.h

   1 // Copyright (c) 2012 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_UI_WEBUI_OPTIONS_CHROMEOS_CROS_LANGUAGE_OPTIONS_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_CHROMEOS_CROS_LANGUAGE_OPTIONS_HANDLER_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "chrome/browser/ui/webui/options/language_options_handler.h"
  10 #include "chromeos/ime/component_extension_ime_manager.h"
  11 #include "chromeos/ime/input_method_descriptor.h"
  12
  13 namespace chromeos {
  14 namespace options {
  15
  16 // Language options page UI handler for Chrome OS.  For non-Chrome OS,
  17 // see LanguageOptionsHnadler.
  18 class CrosLanguageOptionsHandler
  19     : public ::options::LanguageOptionsHandlerCommon,
  20       public ComponentExtensionIMEManager::Observer {
  21  public:
  22   CrosLanguageOptionsHandler();
  23   virtual ~CrosLanguageOptionsHandler();
  24
  25   // OptionsPageUIHandler implementation.
  26   virtual void GetLocalizedValues(
  27       base::DictionaryValue* localized_strings) OVERRIDE;
  28
  29   // DOMMessageHandler implementation.
  30   virtual void RegisterMessages() OVERRIDE;
  31
  32   // The following static methods are public for ease of testing.
  33
  34   // Gets the list of input methods from the given input descriptors.
  35   // The return value will look like:
  36   // [{'id': 'pinyin', 'displayName': 'Pinyin',
  37   //   'languageCodeSet': {'zh-CW': true}},  ...]
  38   //
  39   // Note that true in languageCodeSet does not mean anything. We just use
  40   // the dictionary as a set.
  41   static base::ListValue* GetInputMethodList(
  42       const input_method::InputMethodDescriptors& descriptors);
  43
  44   // Gets the list of accept languages with the given input descriptors.
  45   // Listed languages will be used as Accept-Language header.
  46   // The return value will look like:
  47   // [{'code': 'fi', 'displayName': 'Finnish', 'nativeDisplayName': 'suomi'},
  48   //  ...]
  49   static base::ListValue* GetAcceptLanguageList(
  50       const input_method::InputMethodDescriptors& descriptors);
  51
  52   // Gets the list of UI languages with the given input descriptors.
  53   // The return value will look like:
  54   // [{'code': 'fi', 'displayName': 'Finnish', 'nativeDisplayName': 'suomi'},
  55   //  ...]
  56   static base::ListValue* GetUILanguageList(
  57       const input_method::InputMethodDescriptors& descriptors);
  58
  59   // Converts input method descriptors to the list of input methods.
  60   // The return value will look like:
  61   // [{'id': '_ext_ime_nejguenhnsnjnwychcnsdsdjketest',
  62   //   'displayName': 'Sample IME'},  ...]
  63   static base::ListValue* ConvertInputMethodDescriptosToIMEList(
  64       const input_method::InputMethodDescriptors& descriptors);
  65
  66  private:
  67   // LanguageOptionsHandlerCommon implementation.
  68   virtual base::string16 GetProductName() OVERRIDE;
  69   virtual void SetApplicationLocale(const std::string& language_code) OVERRIDE;
  70
  71   // Called when the sign-out button is clicked.
  72   void RestartCallback(const base::ListValue* args);
  73
  74   // Called when the input method is disabled.
  75   // |args| will contain the input method ID as string (ex. "mozc").
  76   void InputMethodDisableCallback(const base::ListValue* args);
  77
  78   // Called when the input method is enabled.
  79   // |args| will contain the input method ID as string (ex. "mozc").
  80   void InputMethodEnableCallback(const base::ListValue* args);
  81
  82   // Called when the input method options page is opened.
  83   // |args| will contain the input method ID as string (ex. "mozc").
  84   void InputMethodOptionsOpenCallback(const base::ListValue* args);
  85
  86   // ComponentExtensionIMEManager::Observer override.
  87   virtual void OnInitialized() OVERRIDE;
  88
  89   // Gets the list of languages with |descriptors| based on
  90   // |base_language_codes|.
  91   static base::ListValue* GetLanguageListInternal(
  92       const input_method::InputMethodDescriptors& descriptors,
  93       const std::vector<std::string>& base_language_codes);
  94
  95   // OptionsPageUIHandler implementation.
  96   virtual void InitializePage() OVERRIDE;
  97
  98   // True if the component extension list was appended into input method list.
  99   bool composition_extension_appended_;
 100
 101   // True if this page was initialized.
 102   bool is_page_initialized_;
 103
 104   DISALLOW_COPY_AND_ASSIGN(CrosLanguageOptionsHandler);
 105 };
 106
 107 }  // namespace options
 108 }  // namespace chromeos
 109
 110 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_CHROMEOS_CROS_LANGUAGE_OPTIONS_HANDLER_H_