Minor refactoring / cleanup of `KeyguardViewMediator`.

import android.animation.Animator;

import android.animation.AnimatorListenerAdapter;

import android.animation.ValueAnimator;

import android.annotation.SuppressLint;

import android.app.AlarmManager;

import android.app.BroadcastOptions;

import android.app.IActivityTaskManager;

import android.app.PendingIntent;

import android.app.StatusBarManager;

import android.app.WallpaperManager;

import android.app.WindowConfiguration;

import android.app.trust.TrustManager;

import android.content.BroadcastReceiver;

import com.android.systemui.wallpapers.data.repository.WallpaperRepository;

import com.android.wm.shell.keyguard.KeyguardTransitions;

import dagger.Lazy;

import java.io.PrintWriter;

import java.lang.annotation.Retention;

import java.lang.annotation.RetentionPolicy;

import java.util.concurrent.Executor;

import java.util.function.Consumer;

import dagger.Lazy;

import kotlinx.coroutines.CoroutineDispatcher;

/**

    private AlarmManager mAlarmManager;

    private AudioManager mAudioManager;

    private StatusBarManager mStatusBarManager;

    private WallpaperManager mWallpaperManager;

    private final IStatusBarService mStatusBarService;

    private final IBinder mStatusBarDisableToken = new Binder();

    private final UserTracker mUserTracker;

    private final SecureSettings mSecureSettings;

    private final SystemSettings mSystemSettings;

    private final SystemClock mSystemClock;

    private SystemPropertiesHelper mSystemPropertiesHelper;

    private final SystemPropertiesHelper mSystemPropertiesHelper;

    /**

     * Used to keep the device awake while to ensure the keyguard finishes opening before

     * we sleep.

     */

    private PowerManager.WakeLock mShowKeyguardWakeLock;

    private final PowerManager.WakeLock mShowKeyguardWakeLock;

    private final Lazy<KeyguardViewController> mKeyguardViewControllerLazy;

    private boolean mWakeAndUnlocking = false;

    /**

     * Helps remember whether the screen has turned on since the last time

     * it turned off due to timeout. see {@link #onScreenTurnedOff(int)}

     * Helps remember whether the screen has turned on since the last time it turned off due to

     * timeout. See {@link #onScreenTurnedOff}

     */

    private int mDelayedShowingSequence;

    /**

     * Similar to {@link #mDelayedProfileShowingSequence}, but it is for profile case.

     * Similar to {@link #mDelayedShowingSequence}, but it is for profile case.

     */

    private int mDelayedProfileShowingSequence;

    private boolean mGoingToSleep;

    // last known state of the cellular connection

    private String mPhoneState = TelephonyManager.EXTRA_STATE_IDLE;

    private final String mPhoneState = TelephonyManager.EXTRA_STATE_IDLE;

    /**

     * Whether a hide is pending and we are just waiting for #startKeyguardExitAnimation to be

                public void onAnimationStart(int transit, RemoteAnimationTarget[] apps,

                        RemoteAnimationTarget[] wallpapers, RemoteAnimationTarget[] nonApps,

                        IRemoteAnimationFinishedCallback finishedCallback) throws RemoteException {

                    if (!handleOnAnimationStart(

                                transit, apps, wallpapers, nonApps, finishedCallback)) {

                    if (!handleOnAnimationStart(apps, finishedCallback)) {

                        // Usually we rely on animation completion to synchronize occluded status,

                        // but there was no animation to play, so just update it now.

                        setOccluded(true /* isOccluded */, false /* animate */);

                    }

                }

                private boolean handleOnAnimationStart(int transit, RemoteAnimationTarget[] apps,

                        RemoteAnimationTarget[] wallpapers, RemoteAnimationTarget[] nonApps,

                        IRemoteAnimationFinishedCallback finishedCallback) throws RemoteException {

                private boolean handleOnAnimationStart(RemoteAnimationTarget[] apps,

                        IRemoteAnimationFinishedCallback finishedCallback) {

                    if (apps == null || apps.length == 0 || apps[0] == null) {

                        Log.d(TAG, "No apps provided to the OccludeByDream runner; "

                                + "skipping occluding animation.");

                    }

                    final RemoteAnimationTarget primary = apps[0];

                    final boolean isDream = (apps[0].taskInfo != null

                            && apps[0].taskInfo.topActivityType

                    final boolean isDream = (primary.taskInfo != null

                            && primary.taskInfo.topActivityType

                            == WindowConfiguration.ACTIVITY_TYPE_DREAM);

                    if (!isDream) {

                        Log.w(TAG, "The occluding app isn't Dream; "

    }

    private DeviceConfigProxy mDeviceConfig;

    private DozeParameters mDozeParameters;

    private SelectedUserInteractor mSelectedUserInteractor;

    private KeyguardInteractor mKeyguardInteractor;

    private final DozeParameters mDozeParameters;

    private final SelectedUserInteractor mSelectedUserInteractor;

    private final KeyguardInteractor mKeyguardInteractor;

    @VisibleForTesting

    protected FoldGracePeriodProvider mFoldGracePeriodProvider =

            new FoldGracePeriodProvider();

    private final Lazy<KeyguardUnlockAnimationController> mKeyguardUnlockAnimationControllerLazy;

    private final InteractionJankMonitor mInteractionJankMonitor;

    private boolean mWallpaperSupportsAmbientMode;

    private ScreenOnCoordinator mScreenOnCoordinator;

    private final KeyguardTransitions mKeyguardTransitions;

    private Lazy<ActivityLaunchAnimator> mActivityLaunchAnimator;

    private Lazy<ScrimController> mScrimControllerLazy;

    private IActivityTaskManager mActivityTaskManagerService;

    private final Lazy<ActivityLaunchAnimator> mActivityLaunchAnimator;

    private final Lazy<ScrimController> mScrimControllerLazy;

    private final IActivityTaskManager mActivityTaskManagerService;

    private FeatureFlags mFeatureFlags;

    private final UiEventLogger mUiEventLogger;

    private final SessionTracker mSessionTracker;

    private final CoroutineDispatcher mMainDispatcher;

            mDreamingToLockscreenTransitionViewModel;

    private RemoteAnimationTarget mRemoteAnimationTarget;

    private Lazy<WindowManagerLockscreenVisibilityManager> mWmLockscreenVisibilityManager;

    private final Lazy<WindowManagerLockscreenVisibilityManager> mWmLockscreenVisibilityManager;

    /**

     * Injected constructor. See {@link KeyguardModule}.

        mShadeController = shadeControllerLazy;

        dumpManager.registerDumpable(this);

        mDeviceConfig = deviceConfig;

        mScreenOnCoordinator = screenOnCoordinator;

        mKeyguardTransitions = keyguardTransitions;

        mNotificationShadeWindowControllerLazy = notificationShadeWindowControllerLazy;

        mShowHomeOverLockscreen = mDeviceConfig.getBoolean(

                mHandler::post,

                mOnPropertiesChangedListener);

        mInGestureNavigationMode =

                QuickStepContract.isGesturalMode(navigationModeController.addListener(mode -> {

                    mInGestureNavigationMode = QuickStepContract.isGesturalMode(mode);

                }));

                QuickStepContract.isGesturalMode(navigationModeController.addListener(mode ->

                        mInGestureNavigationMode = QuickStepContract.isGesturalMode(mode)));

        mDozeParameters = dozeParameters;

        mSelectedUserInteractor = selectedUserInteractor;

        mKeyguardInteractor = keyguardInteractor;

        mDreamOpenAnimationDuration = (int) DREAMING_ANIMATION_DURATION_MS;

        mFeatureFlags = featureFlags;

        mUiEventLogger = uiEventLogger;

        mSessionTracker = sessionTracker;

                this::setWallpaperSupportsAmbientMode);

    }

    // TODO(b/273443374) remove, temporary util to get a feature flag

    private WallpaperManager getWallpaperManager() {

        if (mWallpaperManager == null) {

            mWallpaperManager = mContext.getSystemService(WallpaperManager.class);

        }

        return mWallpaperManager;

    }

    @Override

    public void start() {

        synchronized (this) {

            ViewRootImpl viewRootImpl = mKeyguardViewControllerLazy.get().getViewRootImpl();

            if (viewRootImpl != null) {

                collectFlow(viewRootImpl.getView(),

                        mDreamingToLockscreenTransitionViewModel.get().getDreamOverlayAlpha(),

                DreamingToLockscreenTransitionViewModel viewModel =

                        mDreamingToLockscreenTransitionViewModel.get();

                collectFlow(viewRootImpl.getView(), viewModel.getDreamOverlayAlpha(),

                        getRemoteSurfaceAlphaApplier(), mMainDispatcher);

                collectFlow(viewRootImpl.getView(),

                        mDreamingToLockscreenTransitionViewModel.get().getTransitionEnded(),

                collectFlow(viewRootImpl.getView(), viewModel.getTransitionEnded(),

                        getFinishedCallbackConsumer(), mMainDispatcher);

            }

        }

        showKeyguard(options);

    }

    @SuppressLint("MissingPermission")

    private void lockProfile(int userId) {

        mTrustManager.setDeviceLockedForUser(userId, true);

    }

    };

    /**

     * This handler will be associated with the policy thread, which will also

     * be the UI thread of the keyguard.  Since the apis of the policy, and therefore

     * this class, can be called by other threads, any action that directly

     * interacts with the keyguard ui should be posted to this handler, rather

     * than called directly.

     * This handler will be associated with the policy thread, which will also be the UI thread of

     * the keyguard.  Since the apis of the policy, and therefore this class, can be called by other

     * threads, any action that directly interacts with the keyguard ui should be posted to this

     * handler, rather than called directly.

     */

    private Handler mHandler = new Handler(Looper.myLooper(), null, true /*async*/) {

    private final Handler mHandler = new Handler(Looper.myLooper(), null, true /*async*/) {

        @Override

        public void handleMessage(Message msg) {

            String message = "";

            try {

                mActivityTaskManagerService.setLockScreenShown(showing, aodShowing);

            } catch (RemoteException e) {

            } catch (RemoteException ignored) {

            }

        });

    }

            if (!mSystemReady) {

                if (DEBUG) Log.d(TAG, "ignoring handleShow because system is not ready.");

                return;

            } else {

                if (DEBUG) Log.d(TAG, "handleShow");

            }

            if (DEBUG) Log.d(TAG, "handleShow");

            mKeyguardExitAnimationRunner = null;

            mWakeAndUnlocking = false;

    }

    private final Runnable mKeyguardGoingAwayRunnable = new Runnable() {

        @SuppressLint("MissingPermission")

        @Override

        public void run() {

            Trace.beginSection("KeyguardViewMediator.mKeyGuardGoingAwayRunnable");

            return;

        }

        final String reasonDescription;

        switch(reason) {

            case WakeAndUnlockUpdateReason.FULFILL:

                reasonDescription = "fulfilling existing request";

                break;

            case WakeAndUnlockUpdateReason.HIDE:

                reasonDescription = "hiding keyguard";

                break;

            case WakeAndUnlockUpdateReason.SHOW:

                reasonDescription = "showing keyguard";

                break;

            case WakeAndUnlockUpdateReason.WAKE_AND_UNLOCK:

                reasonDescription = "waking to unlock";

                break;

            default:

                throw new IllegalStateException("Unexpected value: " + reason);

        }

        final String reasonDescription = switch (reason) {

            case WakeAndUnlockUpdateReason.FULFILL -> "fulfilling existing request";

            case WakeAndUnlockUpdateReason.HIDE -> "hiding keyguard";

            case WakeAndUnlockUpdateReason.SHOW -> "showing keyguard";

            case WakeAndUnlockUpdateReason.WAKE_AND_UNLOCK -> "waking to unlock";

            default -> throw new IllegalStateException("Unexpected value: " + reason);

        };

        final boolean unsetUnfulfilled = !updatedValue

                && reason != WakeAndUnlockUpdateReason.FULFILL;

                IRemoteAnimationFinishedCallback callback =

                        new IRemoteAnimationFinishedCallback() {

                            @Override

                            public void onAnimationFinished() throws RemoteException {

                            public void onAnimationFinished() {

                                if (!KeyguardWmStateRefactor.isEnabled()) {

                                    try {

                                        finishedCallback.onAnimationFinished();

    /**

     * Registers the CentralSurfaces to which the Keyguard View is mounted.

     *

     * @param centralSurfaces

     * @param panelView

     * @param biometricUnlockController

     * @param notificationContainer

     * @param bypassController

     * @return the View Controller for the Keyguard View this class is mediating.

     */

    public KeyguardViewController registerCentralSurfaces(CentralSurfaces centralSurfaces,

            }

        });

        updateInputRestrictedLocked();

        mUiBgExecutor.execute(() -> {

            mTrustManager.reportKeyguardShowingChanged();

        });

        mUiBgExecutor.execute(mTrustManager::reportKeyguardShowingChanged);

    }

    private void notifyTrustedChangedLocked(boolean trusted) {

import java.util.concurrent.Executor;

import kotlinx.coroutines.CoroutineDispatcher;

import kotlinx.coroutines.ExperimentalCoroutinesApi;

/**

 * Dagger Module providing keyguard.

 */

@ExperimentalCoroutinesApi

@Module(subcomponents = {

        KeyguardQsUserSwitchComponent.class,

        KeyguardStatusBarViewComponent.class,

     */

    @Provides

    @SysUISingleton

    public static KeyguardViewMediator newKeyguardViewMediator(

    static KeyguardViewMediator newKeyguardViewMediator(

            Context context,

            UiEventLogger uiEventLogger,

            SessionTracker sessionTracker,