Revert 162140 - ash : Decouple power button controller and session state controller.

ash/wm/session_state_controller.cc

-// Copyright (c) 2012 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 "ash/wm/session_state_controller.h"
-
-#include "ash/ash_switches.h"
-#include "ash/shell.h"
-#include "ash/shell_delegate.h"
-#include "ash/shell_window_ids.h"
-#include "ash/wm/session_state_animator.h"
-#include "base/command_line.h"
-#include "ui/aura/root_window.h"
-#include "ui/aura/shared/compound_event_filter.h"
-
-#if defined(OS_CHROMEOS)
-#include "base/chromeos/chromeos_version.h"
-#endif
-
-namespace ash {
-
-const int SessionStateController::kLockTimeoutMs = 400;
-const int SessionStateController::kShutdownTimeoutMs = 400;
-const int SessionStateController::kLockFailTimeoutMs = 4000;
-const int SessionStateController::kLockToShutdownTimeoutMs = 150;
-const int SessionStateController::kSlowCloseAnimMs = 400;
-const int SessionStateController::kUndoSlowCloseAnimMs = 100;
-const int SessionStateController::kFastCloseAnimMs = 150;
-const int SessionStateController::kShutdownRequestDelayMs = 50;
-
-SessionStateController::TestApi::TestApi(SessionStateController* controller)
-    : controller_(controller) {
-}
-
-SessionStateController::TestApi::~TestApi() {
-}
-
-SessionStateController::SessionStateController()
-    : login_status_(user::LOGGED_IN_NONE),
-      unlocked_login_status_(user::LOGGED_IN_NONE),
-      shutting_down_(false),
-      shutdown_after_lock_(false),
-      animator_(new internal::SessionStateAnimator()) {
-  Shell::GetPrimaryRootWindow()->AddRootWindowObserver(this);
-}
-
-SessionStateController::~SessionStateController() {
-  Shell::GetPrimaryRootWindow()->RemoveRootWindowObserver(this);
-}
-
-void SessionStateController::SetDelegate(
-    SessionStateControllerDelegate* delegate) {
-  delegate_.reset(delegate);
-}
-
-void SessionStateController::OnLoginStateChanged(user::LoginStatus status) {
-  login_status_ = status;
-  unlocked_login_status_ = user::LOGGED_IN_NONE;
-}
-
-void SessionStateController::OnAppTerminating() {
-  // If we hear that Chrome is exiting but didn't request it ourselves, all we
-  // can really hope for is that we'll have time to clear the screen.
-  if (!shutting_down_) {
-    shutting_down_ = true;
-    Shell* shell = ash::Shell::GetInstance();
-    shell->env_filter()->set_cursor_hidden_by_filter(false);
-    shell->cursor_manager()->ShowCursor(false);
-    animator_->ShowBlackLayer();
-    animator_->StartAnimation(
-        internal::SessionStateAnimator::kAllContainersMask,
-        internal::SessionStateAnimator::ANIMATION_HIDE);
-  }
-}
-
-void SessionStateController::OnLockStateChanged(bool locked) {
-  if (shutting_down_ || (IsLocked()) == locked)
-    return;
-
-  if (!locked && login_status_ == user::LOGGED_IN_LOCKED) {
-    login_status_ = unlocked_login_status_;
-    unlocked_login_status_ = user::LOGGED_IN_NONE;
-  } else {
-    unlocked_login_status_ = login_status_;
-    login_status_ = user::LOGGED_IN_LOCKED;
-  }
-
-  if (locked) {
-    animator_->StartAnimation(
-        internal::SessionStateAnimator::LOCK_SCREEN_CONTAINERS,
-        internal::SessionStateAnimator::ANIMATION_FADE_IN);
-    lock_timer_.Stop();
-    lock_fail_timer_.Stop();
-
-    if (shutdown_after_lock_) {
-      shutdown_after_lock_ = false;
-      StartLockToShutdownTimer();
-    }
-  } else {
-    animator_->StartAnimation(
-        internal::SessionStateAnimator::DESKTOP_BACKGROUND |
-        internal::SessionStateAnimator::LAUNCHER |
-        internal::SessionStateAnimator::NON_LOCK_SCREEN_CONTAINERS,
-        internal::SessionStateAnimator::ANIMATION_RESTORE);
-    animator_->DropBlackLayer();
-  }
-}
-
-void SessionStateController::OnStartingLock() {
-  if (shutting_down_ || login_status_ == user::LOGGED_IN_LOCKED)
-    return;
-
-  // Ensure that the black layer is visible -- if the screen was locked via
-  // the wrench menu, we won't have already shown the black background
-  // as part of the slow-close animation.
-  animator_->ShowBlackLayer();
-
-  animator_->StartAnimation(
-      internal::SessionStateAnimator::LAUNCHER,
-      internal::SessionStateAnimator::ANIMATION_HIDE);
-
-  animator_->StartAnimation(
-      internal::SessionStateAnimator::NON_LOCK_SCREEN_CONTAINERS,
-      internal::SessionStateAnimator::ANIMATION_FAST_CLOSE);
-
-  // Hide the screen locker containers so we can make them fade in later.
-  animator_->StartAnimation(
-      internal::SessionStateAnimator::LOCK_SCREEN_CONTAINERS,
-      internal::SessionStateAnimator::ANIMATION_HIDE);
-}
-
-void SessionStateController::StartLockAnimationAndLockImmediately() {
-  animator_->ShowBlackLayer();
-  animator_->StartAnimation(
-      internal::SessionStateAnimator::NON_LOCK_SCREEN_CONTAINERS,
-      internal::SessionStateAnimator::ANIMATION_SLOW_CLOSE);
-  OnLockTimeout();
-}
-
-void SessionStateController::StartLockAnimation() {
-  shutdown_after_lock_ = true;
-
-  animator_->ShowBlackLayer();
-  animator_->StartAnimation(
-      internal::SessionStateAnimator::NON_LOCK_SCREEN_CONTAINERS,
-      internal::SessionStateAnimator::ANIMATION_SLOW_CLOSE);
-  StartLockTimer();
-}
-
-void SessionStateController::StartShutdownAnimation() {
-  animator_->ShowBlackLayer();
-  animator_->StartAnimation(
-      internal::SessionStateAnimator::kAllContainersMask,
-      internal::SessionStateAnimator::ANIMATION_SLOW_CLOSE);
-
-  StartPreShutdownAnimationTimer();
-}
-
-bool SessionStateController::IsEligibleForLock() {
-  return IsLoggedInAsNonGuest() && !IsLocked() && !LockRequested();
-}
-
-bool SessionStateController::IsLocked() {
-  return login_status_ == user::LOGGED_IN_LOCKED;
-}
-
-bool SessionStateController::LockRequested() {
-  return lock_fail_timer_.IsRunning();
-}
-
-bool SessionStateController::ShutdownRequested() {
-  return shutting_down_;
-}
-
-bool SessionStateController::CanCancelLockAnimation() {
-  return lock_timer_.IsRunning();
-}
-
-void SessionStateController::CancelLockAnimation() {
-  if (!CanCancelLockAnimation())
-    return;
-  shutdown_after_lock_ = false;
-  animator_->StartAnimation(
-      internal::SessionStateAnimator::kAllContainersMask,
-      internal::SessionStateAnimator::ANIMATION_UNDO_SLOW_CLOSE);
-  animator_->ScheduleDropBlackLayer();
-  lock_timer_.Stop();
-}
-
-void SessionStateController::CancelLockWithOtherAnimation() {
-  if (!CanCancelLockAnimation())
-    return;
-  shutdown_after_lock_ = false;
-  animator_->StartAnimation(
-      internal::SessionStateAnimator::NON_LOCK_SCREEN_CONTAINERS,
-      internal::SessionStateAnimator::ANIMATION_UNDO_SLOW_CLOSE);
-  animator_->ScheduleDropBlackLayer();
-  lock_timer_.Stop();
-}
-
-bool SessionStateController::CanCancelShutdownAnimation() {
-  return pre_shutdown_timer_.IsRunning() ||
-         lock_to_shutdown_timer_.IsRunning();
-}
-
-void SessionStateController::CancelShutdownAnimation() {
-  if (!CanCancelShutdownAnimation())
-    return;
-  if (lock_to_shutdown_timer_.IsRunning()) {
-    lock_to_shutdown_timer_.Stop();
-    return;
-  }
-
-  if (login_status_ == user::LOGGED_IN_LOCKED) {
-    // If we've already started shutdown transition at lock screen
-    // desktop background needs to be restored immediately.
-    animator_->StartAnimation(
-        internal::SessionStateAnimator::DESKTOP_BACKGROUND,
-        internal::SessionStateAnimator::ANIMATION_RESTORE);
-    animator_->StartAnimation(
-        internal::SessionStateAnimator::kAllLockScreenContainersMask,
-        internal::SessionStateAnimator::ANIMATION_UNDO_SLOW_CLOSE);
-    animator_->ScheduleDropBlackLayer();
-  } else {
-    animator_->StartAnimation(
-        internal::SessionStateAnimator::kAllContainersMask,
-        internal::SessionStateAnimator::ANIMATION_UNDO_SLOW_CLOSE);
-    animator_->ScheduleDropBlackLayer();
-  }
-  pre_shutdown_timer_.Stop();
-}
-
-void SessionStateController::RequestShutdown() {
-  if (!shutting_down_)
-    animator_->ShowBlackLayer();
-    RequestShutdownImpl();
-}
-
-void SessionStateController::RequestShutdownImpl() {
-  DCHECK(!shutting_down_);
-  shutting_down_ = true;
-
-  Shell* shell = ash::Shell::GetInstance();
-  shell->env_filter()->set_cursor_hidden_by_filter(false);
-  shell->cursor_manager()->ShowCursor(false);
-
-  animator_->ShowBlackLayer();
-  if (login_status_ != user::LOGGED_IN_NONE) {
-    // Hide the other containers before starting the animation.
-    // ANIMATION_FAST_CLOSE will make the screen locker windows partially
-    // transparent, and we don't want the other windows to show through.
-    animator_->StartAnimation(
-        internal::SessionStateAnimator::NON_LOCK_SCREEN_CONTAINERS |
-        internal::SessionStateAnimator::LAUNCHER,
-        internal::SessionStateAnimator::ANIMATION_HIDE);
-    animator_->StartAnimation(
-        internal::SessionStateAnimator::kAllLockScreenContainersMask,
-        internal::SessionStateAnimator::ANIMATION_FAST_CLOSE);
-  } else {
-    animator_->StartAnimation(
-        internal::SessionStateAnimator::kAllContainersMask,
-        internal::SessionStateAnimator::ANIMATION_FAST_CLOSE);
-  }
-  StartRealShutdownTimer();
-}
-
-void SessionStateController::OnRootWindowHostCloseRequested(
-                                                const aura::RootWindow*) {
-  if(Shell::GetInstance() && Shell::GetInstance()->delegate())
-    Shell::GetInstance()->delegate()->Exit();
-}
-
-bool SessionStateController::IsLoggedInAsNonGuest() const {
-  // TODO(mukai): think about kiosk mode.
-  return (login_status_ != user::LOGGED_IN_NONE) &&
-         (login_status_ != user::LOGGED_IN_GUEST);
-}
-
-void SessionStateController::StartLockTimer() {
-  lock_timer_.Stop();
-  lock_timer_.Start(FROM_HERE,
-                    base::TimeDelta::FromMilliseconds(kSlowCloseAnimMs),
-                    this, &SessionStateController::OnLockTimeout);
-}
-
-void SessionStateController::OnLockTimeout() {
-  delegate_->RequestLockScreen();
-  lock_fail_timer_.Start(
-      FROM_HERE,
-      base::TimeDelta::FromMilliseconds(kLockFailTimeoutMs),
-      this, &SessionStateController::OnLockFailTimeout);
-}
-
-void SessionStateController::OnLockFailTimeout() {
-  DCHECK_NE(login_status_, user::LOGGED_IN_LOCKED);
-  // Undo lock animation.
-  animator_->StartAnimation(
-      internal::SessionStateAnimator::LAUNCHER |
-      internal::SessionStateAnimator::NON_LOCK_SCREEN_CONTAINERS,
-      internal::SessionStateAnimator::ANIMATION_RESTORE);
-  animator_->DropBlackLayer();
-}
-
-void SessionStateController::StartLockToShutdownTimer() {
-  shutdown_after_lock_ = false;
-  lock_to_shutdown_timer_.Stop();
-  lock_to_shutdown_timer_.Start(
-      FROM_HERE,
-      base::TimeDelta::FromMilliseconds(kLockToShutdownTimeoutMs),
-      this, &SessionStateController::OnLockToShutdownTimeout);
-}
-
-
-void SessionStateController::OnLockToShutdownTimeout() {
-  DCHECK_EQ(login_status_, user::LOGGED_IN_LOCKED);
-  StartShutdownAnimation();
-}
-
-void SessionStateController::StartPreShutdownAnimationTimer() {
-  pre_shutdown_timer_.Stop();
-  pre_shutdown_timer_.Start(
-      FROM_HERE,
-      base::TimeDelta::FromMilliseconds(kShutdownTimeoutMs),
-      this, &SessionStateController::OnPreShutdownAnimationTimeout);
-}
-
-void SessionStateController::OnPreShutdownAnimationTimeout() {
-  if (!shutting_down_)
-    RequestShutdownImpl();
-}
-
-void SessionStateController::StartRealShutdownTimer() {
-  real_shutdown_timer_.Start(
-      FROM_HERE,
-      base::TimeDelta::FromMilliseconds(kFastCloseAnimMs +
-          kShutdownRequestDelayMs),
-      this, &SessionStateController::OnRealShutdownTimeout);
-}
-
-void SessionStateController::OnRealShutdownTimeout() {
-  DCHECK(shutting_down_);
-#if defined(OS_CHROMEOS)
-  if (!base::chromeos::IsRunningOnChromeOS()) {
-    ShellDelegate* delegate = Shell::GetInstance()->delegate();
-    if (delegate) {
-      delegate->Exit();
-      return;
-    }
-  }
-#endif
-  delegate_->RequestShutdown();
-}
-
-}  // namespace ash