Introduces the speech recognition UI to app_list.

chrome/browser/ui/webui/app_list/start_page_handler.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/webui/app_list/start_page_handler.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/app_list/app_list_controller_delegate.h"
 #include "chrome/browser/ui/app_list/app_list_service.h"
 #include "chrome/browser/ui/app_list/recommended_apps.h"
 #include "chrome/browser/ui/app_list/start_page_service.h"
 #include "chrome/browser/ui/host_desktop.h"
 #include "chrome/browser/ui/webui/extensions/extension_icon_source.h"
 #include "chrome/common/extensions/extension_icon_set.h"
 #include "content/public/browser/web_contents_view.h"
 #include "content/public/browser/web_ui.h"
 #include "extensions/common/extension.h"
+#include "ui/app_list/speech_ui_model_observer.h"
 #include "ui/events/event_constants.h"
 
 namespace app_list {
 
 namespace {
 
 scoped_ptr<base::DictionaryValue> CreateAppInfo(
     const extensions::Extension* app) {
   scoped_ptr<base::DictionaryValue> dict(new base::DictionaryValue);
   dict->SetString("appId", app->id());
@@ skipping 23 matching lines @@
 }
 
 void StartPageHandler::RegisterMessages() {
   web_ui()->RegisterMessageCallback(
       "initialize",
       base::Bind(&StartPageHandler::HandleInitialize, base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "launchApp",
       base::Bind(&StartPageHandler::HandleLaunchApp, base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
-      "search",
-      base::Bind(&StartPageHandler::HandleSearch, base::Unretained(this)));
+      "speechResult",
+      base::Bind(&StartPageHandler::HandleSpeechResult,
+                 base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(
+      "speechSoundLevel",
+      base::Bind(&StartPageHandler::HandleSpeechSoundLevel,
+                 base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "setSpeechRecognitionState",
       base::Bind(&StartPageHandler::HandleSpeechRecognition,
                  base::Unretained(this)));
 }
 
 void StartPageHandler::OnRecommendedAppsChanged() {
   SendRecommendedApps();
 }
 
@@ skipping 37 matching lines @@
   AppListControllerDelegate* controller = AppListService::Get(
       chrome::GetHostDesktopTypeForNativeView(
           web_ui()->GetWebContents()->GetView()->GetNativeView()))
       ->GetControllerDelegate();
   controller->ActivateApp(profile,
                           app,
                           AppListControllerDelegate::LAUNCH_FROM_APP_LIST,
                           ui::EF_NONE);
 }
 
-void StartPageHandler::HandleSearch(const base::ListValue* args) {
+void StartPageHandler::HandleSpeechResult(const base::ListValue* args) {
   base::string16 query;
+  bool is_final = false;
   CHECK(args->GetString(0, &query));
+  CHECK(args->GetBoolean(1, &is_final));
 
-  StartPageService::Get(Profile::FromWebUI(web_ui()))->OnSearch(query);
+  StartPageService::Get(Profile::FromWebUI(web_ui()))->OnSpeechResult(
+      query, is_final);
+}
+
+void StartPageHandler::HandleSpeechSoundLevel(const base::ListValue* args) {
+  double level;
+  CHECK(args->GetDouble(0, &level));
+
+  StartPageService* service =
+      StartPageService::Get(Profile::FromWebUI(web_ui()));
+  service->OnSpeechSoundLevelChanged(static_cast<int16>(level));
 }
 
 void StartPageHandler::HandleSpeechRecognition(const base::ListValue* args) {
-  bool recognizing;
-  CHECK(args->GetBoolean(0, &recognizing));
+  std::string state_string;
+  CHECK(args->GetString(0, &state_string));
+
+  SpeechRecognitionState new_state = SPEECH_RECOGNITION_NOT_STARTED;
+  if (state_string == "on")
+    new_state = SPEECH_RECOGNITION_ON;
+  else if (state_string == "in-speech")
+    new_state = SPEECH_RECOGNITION_IN_SPEECH;
 
   StartPageService* service =
       StartPageService::Get(Profile::FromWebUI(web_ui()));
-  service->OnSpeechRecognitionStateChanged(recognizing);
+  service->OnSpeechRecognitionStateChanged(new_state);
 }
 
 }  // namespace app_list