Introducing the basic functionality to the speech input experimental API.

chrome/browser/extensions/extension_speech_input_manager.cc

-// Copyright (c) 2011 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/extensions/extension_speech_input_manager.h"
-
-#include "chrome/browser/profiles/profile_dependency_manager.h"
-#include "chrome/browser/profiles/profile_keyed_service.h"
-#include "chrome/browser/profiles/profile_keyed_service_factory.h"
-#include "chrome/common/chrome_notification_types.h"
-#include "chrome/common/extensions/extension.h"
-#include "content/common/notification_service.h"
-
-namespace {
-
-// Wrap an ExtensionSpeechInputManager using scoped_refptr to avoid
-// assertion failures on destruction because of not using release().
-class ExtensionSpeechInputManagerWrapper : public ProfileKeyedService {
- public:
-  explicit ExtensionSpeechInputManagerWrapper(
-      ExtensionSpeechInputManager* manager)
-      : manager_(manager) {}
-
-  virtual ~ExtensionSpeechInputManagerWrapper() {}
-
-  ExtensionSpeechInputManager* manager() const { return manager_.get(); }
-
- private:
-  // Methods from ProfileKeyedService.
-  virtual void Shutdown() OVERRIDE {
-    manager()->ShutdownOnUIThread();
-  }
-
-  scoped_refptr<ExtensionSpeechInputManager> manager_;
-};
-
-}
-
-// Factory for ExtensionSpeechInputManagers as profile keyed services.
-class ExtensionSpeechInputManager::Factory : public ProfileKeyedServiceFactory {
- public:
-  static void Initialize();
-  static Factory* GetInstance();
-
-  ExtensionSpeechInputManagerWrapper* GetForProfile(Profile* profile);
-
- private:
-  friend struct DefaultSingletonTraits<Factory>;
-
-  Factory();
-  virtual ~Factory();
-
-  // ProfileKeyedServiceFactory methods:
-  virtual ProfileKeyedService* BuildServiceInstanceFor(
-      Profile* profile) const;
-  virtual bool ServiceRedirectedInIncognito() { return false; }
-  virtual bool ServiceIsNULLWhileTesting() { return true; }
-  virtual bool ServiceIsCreatedWithProfile() { return true; }
-
-  DISALLOW_COPY_AND_ASSIGN(Factory);
-};
-
-void ExtensionSpeechInputManager::Factory::Initialize() {
-  GetInstance();
-}
-
-ExtensionSpeechInputManager::Factory*
-    ExtensionSpeechInputManager::Factory::GetInstance() {
-  return Singleton<ExtensionSpeechInputManager::Factory>::get();
-}
-
-ExtensionSpeechInputManagerWrapper*
-    ExtensionSpeechInputManager::Factory::GetForProfile(
-    Profile* profile) {
-  return static_cast<ExtensionSpeechInputManagerWrapper*>(
-      GetServiceForProfile(profile, true));
-}
-
-ExtensionSpeechInputManager::Factory::Factory()
-    : ProfileKeyedServiceFactory(ProfileDependencyManager::GetInstance()) {
-}
-
-ExtensionSpeechInputManager::Factory::~Factory() {
-}
-
-ProfileKeyedService*
-    ExtensionSpeechInputManager::Factory::BuildServiceInstanceFor(
-    Profile* profile) const {
-  scoped_refptr<ExtensionSpeechInputManager> manager(
-      new ExtensionSpeechInputManager(profile));
-  return new ExtensionSpeechInputManagerWrapper(manager);
-}
-
-ExtensionSpeechInputManager::ExtensionSpeechInputManager(Profile* profile)
-    : profile_(profile),
-      extension_(NULL) {
-  registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED,
-                 Source<Profile>(profile_));
-}
-
-ExtensionSpeechInputManager::~ExtensionSpeechInputManager() {
-}
-
-ExtensionSpeechInputManager* ExtensionSpeechInputManager::GetForProfile(
-    Profile* profile) {
-  ExtensionSpeechInputManagerWrapper *wrapper =
-      Factory::GetInstance()->GetForProfile(profile);
-  if (!wrapper)
-    return NULL;
-  return wrapper->manager();
-}
-
-void ExtensionSpeechInputManager::InitializeFactory() {
-  Factory::Initialize();
-}
-
-void ExtensionSpeechInputManager::Observe(int type,
-    const NotificationSource& source,
-    const NotificationDetails& details) {
-  if (type == chrome::NOTIFICATION_EXTENSION_UNLOADED)
-    ExtensionUnloaded(Details<UnloadedExtensionInfo>(details)->extension->id());
-  else
-    NOTREACHED();
-}
-
-void ExtensionSpeechInputManager::ShutdownOnUIThread() {
-  // TODO(leandrogracia): Force stop to speech recognition if active.
-  registrar_.RemoveAll();
-  profile_ = NULL;
-}
-
-void ExtensionSpeechInputManager::ExtensionUnloaded(const std::string& id) {
-  // TODO(leandrogracia): Force stop to speech recognition if the extension
-  // is currently using the API.
-}
-
-void ExtensionSpeechInputManager::Start(const Extension *extension) {
-  // TODO(leandrogracia): Start speech recognition.
-}
-
-void ExtensionSpeechInputManager::Stop(const Extension *extension) {
-  // TODO(leandrogracia): Stop speech recognition.
-}
-