src/chrome/browser/ui/webui/extensions/command_handler.cc

   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/extensions/command_handler.h"
   6
   7 #include "base/bind.h"
   8 #include "base/values.h"
   9 #include "chrome/browser/chrome_notification_types.h"
  10 #include "chrome/browser/extensions/api/commands/command_service.h"
  11 #include "chrome/browser/extensions/extension_keybinding_registry.h"
  12 #include "chrome/browser/extensions/extension_service.h"
  13 #include "chrome/browser/extensions/extension_system.h"
  14 #include "chrome/browser/profiles/profile.h"
  15 #include "content/public/browser/web_ui.h"
  16 #include "content/public/browser/web_ui_data_source.h"
  17 #include "extensions/common/extension_set.h"
  18 #include "grit/generated_resources.h"
  19 #include "ui/base/l10n/l10n_util.h"
  20
  21 namespace extensions {
  22
  23 CommandHandler::CommandHandler(Profile* profile) : profile_(profile) {
  24 }
  25
  26 CommandHandler::~CommandHandler() {
  27 }
  28
  29 void CommandHandler::GetLocalizedValues(content::WebUIDataSource* source) {
  30   source->AddString("extensionCommandsOverlay",
  31       l10n_util::GetStringUTF16(IDS_EXTENSION_COMMANDS_DIALOG_TITLE));
  32   source->AddString("extensionCommandsEmpty",
  33       l10n_util::GetStringUTF16(IDS_EXTENSION_COMMANDS_EMPTY));
  34   source->AddString("extensionCommandsInactive",
  35       l10n_util::GetStringUTF16(IDS_EXTENSION_COMMANDS_INACTIVE));
  36   source->AddString("extensionCommandsStartTyping",
  37       l10n_util::GetStringUTF16(IDS_EXTENSION_TYPE_SHORTCUT));
  38   source->AddString("extensionCommandsDelete",
  39       l10n_util::GetStringUTF16(IDS_EXTENSION_DELETE_SHORTCUT));
  40   source->AddString("extensionCommandsGlobal",
  41       l10n_util::GetStringUTF16(IDS_EXTENSION_COMMANDS_GLOBAL));
  42   source->AddString("extensionCommandsRegular",
  43       l10n_util::GetStringUTF16(IDS_EXTENSION_COMMANDS_NOT_GLOBAL));
  44   source->AddString("ok", l10n_util::GetStringUTF16(IDS_OK));
  45 }
  46
  47 void CommandHandler::RegisterMessages() {
  48   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_LOADED,
  49                  content::Source<Profile>(profile_));
  50   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED,
  51                  content::Source<Profile>(profile_));
  52
  53   web_ui()->RegisterMessageCallback("extensionCommandsRequestExtensionsData",
  54       base::Bind(&CommandHandler::HandleRequestExtensionsData,
  55       base::Unretained(this)));
  56   web_ui()->RegisterMessageCallback("setShortcutHandlingSuspended",
  57       base::Bind(&CommandHandler::HandleSetShortcutHandlingSuspended,
  58       base::Unretained(this)));
  59   web_ui()->RegisterMessageCallback("setExtensionCommandShortcut",
  60       base::Bind(&CommandHandler::HandleSetExtensionCommandShortcut,
  61       base::Unretained(this)));
  62   web_ui()->RegisterMessageCallback("setCommandScope",
  63       base::Bind(&CommandHandler::HandleSetCommandScope,
  64       base::Unretained(this)));
  65 }
  66
  67 void CommandHandler::Observe(
  68     int type,
  69     const content::NotificationSource& source,
  70     const content::NotificationDetails& details) {
  71   DCHECK(type == chrome::NOTIFICATION_EXTENSION_LOADED ||
  72          type == chrome::NOTIFICATION_EXTENSION_UNLOADED);
  73   UpdateCommandDataOnPage();
  74 }
  75
  76 void CommandHandler::UpdateCommandDataOnPage() {
  77   base::DictionaryValue results;
  78   GetAllCommands(&results);
  79   web_ui()->CallJavascriptFunction(
  80       "extensions.ExtensionCommandsOverlay.returnExtensionsData", results);
  81 }
  82
  83 void CommandHandler::HandleRequestExtensionsData(const base::ListValue* args) {
  84   UpdateCommandDataOnPage();
  85 }
  86
  87 void CommandHandler::HandleSetExtensionCommandShortcut(
  88     const base::ListValue* args) {
  89   std::string extension_id;
  90   std::string command_name;
  91   std::string keystroke;
  92   if (!args->GetString(0, &extension_id) ||
  93       !args->GetString(1, &command_name) ||
  94       !args->GetString(2, &keystroke)) {
  95     NOTREACHED();
  96     return;
  97   }
  98
  99   Profile* profile = Profile::FromWebUI(web_ui());
 100   CommandService* command_service = CommandService::Get(profile);
 101   command_service->UpdateKeybindingPrefs(extension_id, command_name, keystroke);
 102
 103   UpdateCommandDataOnPage();
 104 }
 105
 106 void CommandHandler::HandleSetCommandScope(
 107     const base::ListValue* args) {
 108   std::string extension_id;
 109   std::string command_name;
 110   bool global;
 111   if (!args->GetString(0, &extension_id) ||
 112       !args->GetString(1, &command_name) ||
 113       !args->GetBoolean(2, &global)) {
 114     NOTREACHED();
 115     return;
 116   }
 117
 118   Profile* profile = Profile::FromWebUI(web_ui());
 119   CommandService* command_service = CommandService::Get(profile);
 120   if (command_service->SetScope(extension_id, command_name, global))
 121     UpdateCommandDataOnPage();
 122 }
 123
 124 void CommandHandler::HandleSetShortcutHandlingSuspended(
 125     const base::ListValue* args) {
 126   bool suspended;
 127   if (args->GetBoolean(0, &suspended))
 128     ExtensionKeybindingRegistry::SetShortcutHandlingSuspended(suspended);
 129 }
 130
 131 void CommandHandler::GetAllCommands(base::DictionaryValue* commands) {
 132   base::ListValue* results = new base::ListValue;
 133
 134   Profile* profile = Profile::FromWebUI(web_ui());
 135   CommandService* command_service = CommandService::Get(profile);
 136
 137   const ExtensionSet* extensions = extensions::ExtensionSystem::Get(profile)->
 138       extension_service()->extensions();
 139   for (ExtensionSet::const_iterator extension = extensions->begin();
 140        extension != extensions->end(); ++extension) {
 141     scoped_ptr<base::DictionaryValue> extension_dict(new base::DictionaryValue);
 142     extension_dict->SetString("name", (*extension)->name());
 143     extension_dict->SetString("id", (*extension)->id());
 144
 145     // Add the keybindings to a list structure.
 146     scoped_ptr<base::ListValue> extensions_list(new base::ListValue());
 147
 148     bool active = false;
 149
 150     extensions::Command browser_action;
 151     if (command_service->GetBrowserActionCommand((*extension)->id(),
 152                                                  CommandService::ALL,
 153                                                  &browser_action,
 154                                                  &active)) {
 155       extensions_list->Append(
 156           browser_action.ToValue((extension->get()), active));
 157     }
 158
 159     extensions::Command page_action;
 160     if (command_service->GetPageActionCommand((*extension)->id(),
 161                                               CommandService::ALL,
 162                                               &page_action,
 163                                               &active)) {
 164       extensions_list->Append(page_action.ToValue((extension->get()), active));
 165     }
 166
 167     extensions::CommandMap named_commands;
 168     if (command_service->GetNamedCommands((*extension)->id(),
 169                                           CommandService::ALL,
 170                                           extensions::CommandService::ANY_SCOPE,
 171                                           &named_commands)) {
 172       for (extensions::CommandMap::const_iterator iter = named_commands.begin();
 173            iter != named_commands.end(); ++iter) {
 174         extensions::Command command = command_service->FindCommandByName(
 175                 (*extension)->id(), iter->second.command_name());
 176         ui::Accelerator shortcut_assigned = command.accelerator();
 177
 178         active = (shortcut_assigned.key_code() != ui::VKEY_UNKNOWN);
 179
 180         extensions_list->Append(
 181             iter->second.ToValue((extension->get()), active));
 182       }
 183     }
 184
 185     if (!extensions_list->empty()) {
 186       extension_dict->Set("commands", extensions_list.release());
 187       results->Append(extension_dict.release());
 188     }
 189   }
 190
 191   commands->Set("commands", results);
 192 }
 193
 194 }  // namespace extensions