chrome/browser/ui/ash/assistant/assistant_browser_delegate_impl.cc

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/ui/ash/assistant/assistant_browser_delegate_impl.h"

#include <utility>

#include "ash/constants/ash_features.h"
#include "ash/constants/ash_switches.h"
#include "ash/public/cpp/assistant/assistant_interface_binder.h"
#include "ash/public/cpp/assistant/controller/assistant_interaction_controller.h"
#include "ash/public/cpp/network_config_service.h"
#include "ash/public/cpp/new_window_delegate.h"
#include "base/command_line.h"
#include "base/strings/string_util.h"
#include "chrome/browser/ash/assistant/assistant_util.h"
#include "chrome/browser/ash/crosapi/browser_util.h"
#include "chrome/browser/ash/crosapi/url_handler_ash.h"
#include "chrome/browser/lifetime/termination_notification.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/signin/identity_manager_factory.h"
#include "chrome/browser/ui/ash/assistant/assistant_setup.h"
#include "chrome/browser/ui/ash/assistant/device_actions_delegate_impl.h"
#include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
#include "chrome/common/webui_url_constants.h"
#include "chromeos/ash/services/assistant/public/cpp/features.h"
#include "chromeos/ash/services/assistant/public/mojom/assistant_audio_decoder.mojom.h"
#include "chromeos/crosapi/cpp/gurl_os_handler_utils.h"
#include "components/session_manager/core/session_manager.h"
#include "content/public/browser/audio_service.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/device_service.h"
#include "content/public/browser/media_session_service.h"
#include "content/public/browser/network_service_instance.h"
#include "content/public/browser/service_process_host.h"
#include "content/public/common/content_switches.h"
#include "services/network/public/cpp/shared_url_loader_factory.h"

#if BUILDFLAG(ENABLE_CROS_LIBASSISTANT)
#include "chromeos/ash/services/libassistant/public/mojom/service.mojom.h"
#endif  // BUILDFLAG(ENABLE_CROS_LIBASSISTANT)

AssistantBrowserDelegateImpl::AssistantBrowserDelegateImpl() {
  auto* session_manager = session_manager::SessionManager::Get();
  // AssistantBrowserDelegateImpl must be created before any user session is
  // created. Otherwise, it will not get OnUserProfileLoaded notification.
  DCHECK(session_manager->sessions().empty());
  session_manager->AddObserver(this);

  subscription_ = browser_shutdown::AddAppTerminatingCallback(base::BindOnce(
      &AssistantBrowserDelegateImpl::OnAppTerminating, base::Unretained(this)));
}

AssistantBrowserDelegateImpl::~AssistantBrowserDelegateImpl() {
  session_manager::SessionManager::Get()->RemoveObserver(this);
  if (identity_manager_)
    identity_manager_->RemoveObserver(this);
}

void AssistantBrowserDelegateImpl::MaybeInit(Profile* profile) {
  if (assistant::IsAssistantAllowedForProfile(profile) !=
      ash::assistant::AssistantAllowedState::ALLOWED) {
    return;
  }

  if (!profile_) {
    profile_ = profile;
    identity_manager_ = IdentityManagerFactory::GetForProfile(profile_);
    DCHECK(identity_manager_);
    identity_manager_->AddObserver(this);
  }
  DCHECK_EQ(profile_, profile);

  if (initialized_)
    return;

  initialized_ = true;

  device_actions_ = std::make_unique<DeviceActions>(
      std::make_unique<DeviceActionsDelegateImpl>());

  service_ = std::make_unique<ash::assistant::Service>(
      profile->GetURLLoaderFactory()->Clone(),
      IdentityManagerFactory::GetForProfile(profile), profile->GetPrefs());
  service_->Init();

  assistant_setup_ = std::make_unique<AssistantSetup>();
}

void AssistantBrowserDelegateImpl::MaybeStartAssistantOptInFlow() {
  if (!initialized_)
    return;

  assistant_setup_->MaybeStartAssistantOptInFlow();
}

void AssistantBrowserDelegateImpl::OnAppTerminating() {
  if (!initialized_)
    return;

  ash::assistant::AssistantService::Get()->Shutdown();
}

void AssistantBrowserDelegateImpl::OnAssistantStatusChanged(
    ash::assistant::AssistantStatus new_status) {
  ash::AssistantState::Get()->NotifyStatusChanged(new_status);
}

void AssistantBrowserDelegateImpl::RequestAssistantVolumeControl(
    mojo::PendingReceiver<ash::mojom::AssistantVolumeControl> receiver) {
  ash::AssistantInterfaceBinder::GetInstance()->BindVolumeControl(
      std::move(receiver));
}

void AssistantBrowserDelegateImpl::RequestBatteryMonitor(
    mojo::PendingReceiver<device::mojom::BatteryMonitor> receiver) {
  content::GetDeviceService().BindBatteryMonitor(std::move(receiver));
}

void AssistantBrowserDelegateImpl::RequestWakeLockProvider(
    mojo::PendingReceiver<device::mojom::WakeLockProvider> receiver) {
  content::GetDeviceService().BindWakeLockProvider(std::move(receiver));
}

void AssistantBrowserDelegateImpl::RequestAudioStreamFactory(
    mojo::PendingReceiver<media::mojom::AudioStreamFactory> receiver) {
  content::GetAudioService().BindStreamFactory(std::move(receiver));
}

void AssistantBrowserDelegateImpl::RequestAudioDecoderFactory(
    mojo::PendingReceiver<ash::assistant::mojom::AssistantAudioDecoderFactory>
        receiver) {
  content::ServiceProcessHost::Launch(
      std::move(receiver),
      content::ServiceProcessHost::Options()
          .WithDisplayName("Assistant Audio Decoder Service")
          .Pass());
}

void AssistantBrowserDelegateImpl::RequestAudioFocusManager(
    mojo::PendingReceiver<media_session::mojom::AudioFocusManager> receiver) {
  content::GetMediaSessionService().BindAudioFocusManager(std::move(receiver));
}

void AssistantBrowserDelegateImpl::RequestMediaControllerManager(
    mojo::PendingReceiver<media_session::mojom::MediaControllerManager>
        receiver) {
  content::GetMediaSessionService().BindMediaControllerManager(
      std::move(receiver));
}

void AssistantBrowserDelegateImpl::RequestNetworkConfig(
    mojo::PendingReceiver<chromeos::network_config::mojom::CrosNetworkConfig>
        receiver) {
  ash::GetNetworkConfigService(std::move(receiver));
}

void AssistantBrowserDelegateImpl::OpenUrl(GURL url) {
  if (crosapi::browser_util::IsLacrosEnabled() &&
      ChromeWebUIControllerFactory::GetInstance()->CanHandleUrl(url)) {
    crosapi::UrlHandlerAsh().OpenUrl(url);
  } else {
    // The new tab should be opened with a user activation since the user
    // interacted with the Assistant to open the url. |in_background| describes
    // the relationship between |url| and Assistant UI, not the browser. As
    // such, the browser will always be instructed to open |url| in a new
    // browser tab and Assistant UI state will be updated downstream to respect
    // |in_background|.
    ash::NewWindowDelegate::GetPrimary()->OpenUrl(
        url, ash::NewWindowDelegate::OpenUrlFrom::kUserInteraction,
        ash::NewWindowDelegate::Disposition::kNewForegroundTab);
  }
}

#if BUILDFLAG(ENABLE_CROS_LIBASSISTANT)
void AssistantBrowserDelegateImpl::RequestLibassistantService(
    mojo::PendingReceiver<ash::libassistant::mojom::LibassistantService>
        receiver) {
  content::ServiceProcessHost::Launch<
      ash::libassistant::mojom::LibassistantService>(
      std::move(receiver), content::ServiceProcessHost::Options()
                               .WithDisplayName("Libassistant Service")
                               .Pass());
}
#endif  // BUILDFLAG(ENABLE_CROS_LIBASSISTANT)

void AssistantBrowserDelegateImpl::OnExtendedAccountInfoUpdated(
    const AccountInfo& info) {
  if (initialized_)
    return;

  MaybeInit(profile_);
}

void AssistantBrowserDelegateImpl::OnUserProfileLoaded(
    const AccountId& account_id) {
  if (!assistant_state_observation_.IsObserving() && !initialized_ &&
      ash::AssistantState::Get()) {
    assistant_state_observation_.Observe(ash::AssistantState::Get());
  }
}

void AssistantBrowserDelegateImpl::OnUserSessionStarted(bool is_primary_user) {
  if (ash::features::IsOobeSkipAssistantEnabled()) {
    return;
  }

  // Disable the handling for browser tests to prevent the Assistant being
  // enabled unexpectedly.
  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
  if (is_primary_user && !ash::switches::ShouldSkipOobePostLogin() &&
      !command_line->HasSwitch(switches::kBrowserTest)) {
    MaybeStartAssistantOptInFlow();
  }
}

void AssistantBrowserDelegateImpl::OnAssistantFeatureAllowedChanged(
    ash::assistant::AssistantAllowedState allowed_state) {
  Profile* profile = ProfileManager::GetActiveUserProfile();

  MaybeInit(profile);
}