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      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 #include "chrome/browser/ui/webui/options/chromeos/keyboard_handler.h"
      6 
      7 #include "ash/new_window_delegate.h"
      8 #include "ash/shell.h"
      9 #include "base/bind.h"
     10 #include "base/bind_helpers.h"
     11 #include "base/command_line.h"
     12 #include "base/values.h"
     13 #include "chromeos/chromeos_switches.h"
     14 #include "chromeos/ime/ime_keyboard.h"
     15 #include "content/public/browser/web_ui.h"
     16 #include "grit/generated_resources.h"
     17 #include "ui/base/l10n/l10n_util.h"
     18 
     19 namespace {
     20 const struct ModifierKeysSelectItem {
     21   int message_id;
     22   chromeos::input_method::ModifierKey value;
     23 } kModifierKeysSelectItems[] = {
     24   { IDS_OPTIONS_SETTINGS_LANGUAGES_KEY_SEARCH,
     25     chromeos::input_method::kSearchKey },
     26   { IDS_OPTIONS_SETTINGS_LANGUAGES_KEY_LEFT_CTRL,
     27     chromeos::input_method::kControlKey },
     28   { IDS_OPTIONS_SETTINGS_LANGUAGES_KEY_LEFT_ALT,
     29     chromeos::input_method::kAltKey },
     30   { IDS_OPTIONS_SETTINGS_LANGUAGES_KEY_VOID,
     31     chromeos::input_method::kVoidKey },
     32   { IDS_OPTIONS_SETTINGS_LANGUAGES_KEY_CAPS_LOCK,
     33     chromeos::input_method::kCapsLockKey },
     34   { IDS_OPTIONS_SETTINGS_LANGUAGES_KEY_ESCAPE,
     35     chromeos::input_method::kEscapeKey },
     36 };
     37 
     38 const char* kDataValuesNames[] = {
     39   "remapSearchKeyToValue",
     40   "remapControlKeyToValue",
     41   "remapAltKeyToValue",
     42   "remapCapsLockKeyToValue",
     43   "remapDiamondKeyToValue",
     44 };
     45 }  // namespace
     46 
     47 namespace chromeos {
     48 namespace options {
     49 
     50 KeyboardHandler::KeyboardHandler() {
     51 }
     52 
     53 KeyboardHandler::~KeyboardHandler() {
     54 }
     55 
     56 void KeyboardHandler::GetLocalizedValues(
     57     base::DictionaryValue* localized_strings) {
     58   DCHECK(localized_strings);
     59 
     60   localized_strings->SetString("keyboardOverlayTitle",
     61       l10n_util::GetStringUTF16(IDS_OPTIONS_KEYBOARD_OVERLAY_TITLE));
     62   localized_strings->SetString("remapSearchKeyToContent",
     63       l10n_util::GetStringUTF16(
     64           IDS_OPTIONS_SETTINGS_LANGUAGES_KEY_SEARCH_LABEL));
     65   localized_strings->SetString("remapControlKeyToContent",
     66       l10n_util::GetStringUTF16(
     67           IDS_OPTIONS_SETTINGS_LANGUAGES_KEY_LEFT_CTRL_LABEL));
     68   localized_strings->SetString("remapAltKeyToContent",
     69       l10n_util::GetStringUTF16(
     70           IDS_OPTIONS_SETTINGS_LANGUAGES_KEY_LEFT_ALT_LABEL));
     71   localized_strings->SetString("remapCapsLockKeyToContent",
     72       l10n_util::GetStringUTF16(
     73           IDS_OPTIONS_SETTINGS_LANGUAGES_KEY_CAPS_LOCK_LABEL));
     74   localized_strings->SetString("remapDiamondKeyToContent",
     75       l10n_util::GetStringUTF16(
     76           IDS_OPTIONS_SETTINGS_LANGUAGES_KEY_DIAMOND_KEY_LABEL));
     77   localized_strings->SetString("sendFunctionKeys",
     78       l10n_util::GetStringUTF16(
     79           IDS_OPTIONS_SETTINGS_LANGUAGES_SEND_FUNCTION_KEYS));
     80   localized_strings->SetString("sendFunctionKeysDescription",
     81       l10n_util::GetStringUTF16(
     82           IDS_OPTIONS_SETTINGS_LANGUAGES_SEND_FUNCTION_KEYS_DESCRIPTION));
     83   localized_strings->SetString("changeLanguageAndInputSettings",
     84       l10n_util::GetStringUTF16(
     85           IDS_OPTIONS_SETTINGS_CHANGE_LANGUAGE_AND_INPUT_SETTINGS));
     86   localized_strings->SetString("showKeyboardShortcuts",
     87       l10n_util::GetStringUTF16(
     88           IDS_OPTIONS_SETTINGS_SHOW_KEYBOARD_SHORTCUTS));
     89 
     90   for (size_t i = 0; i < arraysize(kDataValuesNames); ++i) {
     91     base::ListValue* list_value = new base::ListValue();
     92     for (size_t j = 0; j < arraysize(kModifierKeysSelectItems); ++j) {
     93       const input_method::ModifierKey value =
     94           kModifierKeysSelectItems[j].value;
     95       const int message_id = kModifierKeysSelectItems[j].message_id;
     96       // Only the seach key can be remapped to the caps lock key.
     97       if (kDataValuesNames[i] != std::string("remapSearchKeyToValue") &&
     98           kDataValuesNames[i] != std::string("remapCapsLockKeyToValue") &&
     99           value == input_method::kCapsLockKey) {
    100         continue;
    101       }
    102       base::ListValue* option = new base::ListValue();
    103       option->Append(new base::FundamentalValue(value));
    104       option->Append(new base::StringValue(l10n_util::GetStringUTF16(
    105           message_id)));
    106       list_value->Append(option);
    107     }
    108     localized_strings->Set(kDataValuesNames[i], list_value);
    109   }
    110 }
    111 
    112 void KeyboardHandler::InitializePage() {
    113   bool chromeos_keyboard = CommandLine::ForCurrentProcess()->HasSwitch(
    114       chromeos::switches::kHasChromeOSKeyboard);
    115   const base::FundamentalValue show_caps_lock_options(!chromeos_keyboard);
    116 
    117   bool has_diamond_key = CommandLine::ForCurrentProcess()->HasSwitch(
    118       chromeos::switches::kHasChromeOSDiamondKey);
    119   const base::FundamentalValue show_diamond_key_options(has_diamond_key);
    120 
    121   web_ui()->CallJavascriptFunction(
    122       "options.KeyboardOverlay.showCapsLockOptions",
    123       show_caps_lock_options);
    124   web_ui()->CallJavascriptFunction(
    125       "options.KeyboardOverlay.showDiamondKeyOptions",
    126       show_diamond_key_options);
    127 }
    128 
    129 void KeyboardHandler::RegisterMessages() {
    130   // Callback to show keyboard overlay.
    131   web_ui()->RegisterMessageCallback(
    132       "showKeyboardShortcuts",
    133       base::Bind(&KeyboardHandler::HandleShowKeyboardShortcuts,
    134                  base::Unretained(this)));
    135 }
    136 
    137 void KeyboardHandler::HandleShowKeyboardShortcuts(const base::ListValue* args) {
    138   ash::Shell::GetInstance()->new_window_delegate()->ShowKeyboardOverlay();
    139 }
    140 
    141 }  // namespace options
    142 }  // namespace chromeos
    143