xref: /aosp14/frameworks/base/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java

/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.systemui.keyguard;

import static android.app.StatusBarManager.SESSION_KEYGUARD;
import static android.provider.Settings.Secure.LOCK_SCREEN_LOCK_AFTER_TIMEOUT;
import static android.provider.Settings.System.LOCKSCREEN_SOUNDS_ENABLED;
import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT;
import static android.view.RemoteAnimationTarget.MODE_OPENING;
import static android.view.WindowManagerPolicyConstants.KEYGUARD_GOING_AWAY_FLAG_NO_WINDOW_ANIMATIONS;
import static android.view.WindowManagerPolicyConstants.KEYGUARD_GOING_AWAY_FLAG_TO_LAUNCHER_CLEAR_SNAPSHOT;
import static android.view.WindowManagerPolicyConstants.KEYGUARD_GOING_AWAY_FLAG_WITH_WALLPAPER;

import static com.android.internal.config.sysui.SystemUiDeviceConfigFlags.NAV_BAR_HANDLE_SHOW_OVER_LOCKSCREEN;
import static com.android.internal.jank.InteractionJankMonitor.CUJ_LOCKSCREEN_OCCLUSION;
import static com.android.internal.jank.InteractionJankMonitor.CUJ_LOCKSCREEN_TRANSITION_FROM_AOD;
import static com.android.internal.jank.InteractionJankMonitor.CUJ_LOCKSCREEN_UNLOCK_ANIMATION;
import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.SOME_AUTH_REQUIRED_AFTER_TRUSTAGENT_EXPIRED;
import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.SOME_AUTH_REQUIRED_AFTER_USER_REQUEST;
import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW;
import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_LOCKOUT;
import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_NON_STRONG_BIOMETRICS_TIMEOUT;
import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_TIMEOUT;
import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_USER_LOCKDOWN;
import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_FOR_UNATTENDED_UPDATE;
import static com.android.systemui.DejankUtils.whitelistIpcs;
import static com.android.systemui.keyguard.ui.viewmodel.LockscreenToDreamingTransitionViewModel.DREAMING_ANIMATION_DURATION_MS;
import static com.android.systemui.util.kotlin.JavaAdapterKt.collectFlow;

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.ValueAnimator;
import android.app.ActivityTaskManager;
import android.app.AlarmManager;
import android.app.BroadcastOptions;
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 android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.UserInfo;
import android.graphics.Matrix;
import android.hardware.biometrics.BiometricSourceType;
import android.media.AudioAttributes;
import android.media.AudioManager;
import android.media.SoundPool;
import android.os.Binder;
import android.os.Bundle;
import android.os.DeadObjectException;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.Message;
import android.os.PowerManager;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemProperties;
import android.os.Trace;
import android.os.UserHandle;
import android.os.UserManager;
import android.provider.DeviceConfig;
import android.provider.Settings;
import android.telephony.SubscriptionManager;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.util.Slog;
import android.util.SparseBooleanArray;
import android.util.SparseIntArray;
import android.view.IRemoteAnimationFinishedCallback;
import android.view.IRemoteAnimationRunner;
import android.view.RemoteAnimationTarget;
import android.view.SurfaceControl.Transaction;
import android.view.SyncRtSurfaceTransactionApplier;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewRootImpl;
import android.view.WindowManager;
import android.view.WindowManagerPolicyConstants;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;

import androidx.annotation.IntDef;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.VisibleForTesting;

import com.android.app.animation.Interpolators;
import com.android.internal.jank.InteractionJankMonitor;
import com.android.internal.jank.InteractionJankMonitor.Configuration;
import com.android.internal.logging.UiEventLogger;
import com.android.internal.policy.IKeyguardDismissCallback;
import com.android.internal.policy.IKeyguardExitCallback;
import com.android.internal.policy.IKeyguardStateCallback;
import com.android.internal.policy.ScreenDecorationsUtils;
import com.android.internal.statusbar.IStatusBarService;
import com.android.internal.util.LatencyTracker;
import com.android.internal.widget.LockPatternUtils;
import com.android.keyguard.KeyguardConstants;
import com.android.keyguard.KeyguardDisplayManager;
import com.android.keyguard.KeyguardSecurityView;
import com.android.keyguard.KeyguardUpdateMonitor;
import com.android.keyguard.KeyguardUpdateMonitorCallback;
import com.android.keyguard.KeyguardViewController;
import com.android.keyguard.ViewMediatorCallback;
import com.android.keyguard.mediator.ScreenOnCoordinator;
import com.android.systemui.CoreStartable;
import com.android.systemui.DejankUtils;
import com.android.systemui.Dumpable;
import com.android.systemui.EventLogTags;
import com.android.systemui.R;
import com.android.systemui.animation.ActivityLaunchAnimator;
import com.android.systemui.animation.LaunchAnimator;
import com.android.systemui.broadcast.BroadcastDispatcher;
import com.android.systemui.classifier.FalsingCollector;
import com.android.systemui.dagger.qualifiers.Main;
import com.android.systemui.dagger.qualifiers.UiBackground;
import com.android.systemui.dreams.DreamOverlayStateController;
import com.android.systemui.dump.DumpManager;
import com.android.systemui.flags.FeatureFlags;
import com.android.systemui.flags.Flags;
import com.android.systemui.flags.SystemPropertiesHelper;
import com.android.systemui.keyguard.dagger.KeyguardModule;
import com.android.systemui.keyguard.shared.model.TransitionStep;
import com.android.systemui.keyguard.ui.viewmodel.DreamingToLockscreenTransitionViewModel;
import com.android.systemui.log.SessionTracker;
import com.android.systemui.navigationbar.NavigationModeController;
import com.android.systemui.plugins.statusbar.StatusBarStateController;
import com.android.systemui.settings.UserTracker;
import com.android.systemui.shade.ShadeController;
import com.android.systemui.shade.ShadeExpansionStateManager;
import com.android.systemui.shade.ShadeViewController;
import com.android.systemui.shared.system.QuickStepContract;
import com.android.systemui.statusbar.CommandQueue;
import com.android.systemui.statusbar.NotificationShadeDepthController;
import com.android.systemui.statusbar.NotificationShadeWindowController;
import com.android.systemui.statusbar.SysuiStatusBarStateController;
import com.android.systemui.statusbar.phone.BiometricUnlockController;
import com.android.systemui.statusbar.phone.CentralSurfaces;
import com.android.systemui.statusbar.phone.DozeParameters;
import com.android.systemui.statusbar.phone.KeyguardBypassController;
import com.android.systemui.statusbar.phone.ScreenOffAnimationController;
import com.android.systemui.statusbar.phone.ScrimController;
import com.android.systemui.statusbar.policy.KeyguardStateController;
import com.android.systemui.statusbar.policy.UserSwitcherController;
import com.android.systemui.util.DeviceConfigProxy;
import com.android.systemui.util.kotlin.JavaAdapter;
import com.android.systemui.util.settings.SecureSettings;
import com.android.systemui.util.settings.SystemSettings;
import com.android.systemui.util.time.SystemClock;
import com.android.systemui.wallpapers.data.repository.WallpaperRepository;
import com.android.wm.shell.keyguard.KeyguardTransitions;

import java.io.PrintWriter;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Objects;
import java.util.concurrent.Executor;
import java.util.function.Consumer;

import dagger.Lazy;
import kotlinx.coroutines.CoroutineDispatcher;

/**
 * Mediates requests related to the keyguard.  This includes queries about the
 * state of the keyguard, power management events that effect whether the keyguard
 * should be shown or reset, callbacks to the phone window manager to notify
 * it of when the keyguard is showing, and events from the keyguard view itself
 * stating that the keyguard was successfully unlocked.
 *
 * Note that the keyguard view is shown when the screen is off (as appropriate)
 * so that once the screen comes on, it will be ready immediately.
 *
 * Example queries about the keyguard:
 * - is {movement, key} one that should wake the keyguard?
 * - is the keyguard showing?
 * - are input events restricted due to the state of the keyguard?
 *
 * Callbacks to the phone window manager:
 * - the keyguard is showing
 *
 * Example external events that translate to keyguard view changes:
 * - screen turned off -> reset the keyguard, and show it, so it will be ready
 *   next time the screen turns on
 * - keyboard is slid open -> if the keyguard is not secure, hide it
 *
 * Events from the keyguard view:
 * - user successfully unlocked keyguard -> hide keyguard view, and no longer
 *   restrict input events.
 *
 * Note: in addition to normal power management events that effect the state of
 * whether the keyguard should be showing, external apps and services may request
 * that the keyguard be disabled via {@link #setKeyguardEnabled(boolean)}.  When
 * false, this will override all other conditions for turning on the keyguard.
 *
 * Threading and synchronization:
 * This class is created by the initialization routine of the {@link WindowManagerPolicyConstants},
 * and runs on its thread.  The keyguard UI is created from that thread in the
 * constructor of this class.  The apis may be called from other threads, including the
 * {@link com.android.server.input.InputManagerService}'s and {@link android.view.WindowManager}'s.
 * Therefore, methods on this class are synchronized, and any action that is pointed
 * directly to the keyguard UI is posted to a {@link android.os.Handler} to ensure it is taken on the UI
 * thread of the keyguard.
 */
public class KeyguardViewMediator implements CoreStartable, Dumpable,
        StatusBarStateController.StateListener {
    private static final int KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT = 30000;
    private static final long KEYGUARD_DONE_PENDING_TIMEOUT_MS = 3000;

    private static final boolean DEBUG = KeyguardConstants.DEBUG;
    private static final boolean DEBUG_SIM_STATES = KeyguardConstants.DEBUG_SIM_STATES;

    private final static String TAG = "KeyguardViewMediator";

    public static final String DELAYED_KEYGUARD_ACTION =
        "com.android.internal.policy.impl.PhoneWindowManager.DELAYED_KEYGUARD";
    private static final String DELAYED_LOCK_PROFILE_ACTION =
            "com.android.internal.policy.impl.PhoneWindowManager.DELAYED_LOCK";

    private static final String SYSTEMUI_PERMISSION = "com.android.systemui.permission.SELF";

    // used for handler messages
    private static final int SHOW = 1;
    private static final int HIDE = 2;
    private static final int RESET = 3;
    private static final int VERIFY_UNLOCK = 4;
    private static final int NOTIFY_FINISHED_GOING_TO_SLEEP = 5;
    private static final int KEYGUARD_DONE = 7;
    private static final int KEYGUARD_DONE_DRAWING = 8;
    private static final int SET_OCCLUDED = 9;
    private static final int KEYGUARD_TIMEOUT = 10;
    private static final int DISMISS = 11;
    private static final int START_KEYGUARD_EXIT_ANIM = 12;
    private static final int KEYGUARD_DONE_PENDING_TIMEOUT = 13;
    private static final int NOTIFY_STARTED_WAKING_UP = 14;
    private static final int NOTIFY_STARTED_GOING_TO_SLEEP = 17;
    private static final int SYSTEM_READY = 18;
    private static final int CANCEL_KEYGUARD_EXIT_ANIM = 19;

    /** Enum for reasons behind updating wakeAndUnlock state. */
    @Retention(RetentionPolicy.SOURCE)
    @IntDef(
            value = {
                    WakeAndUnlockUpdateReason.HIDE,
                    WakeAndUnlockUpdateReason.SHOW,
                    WakeAndUnlockUpdateReason.FULFILL,
                    WakeAndUnlockUpdateReason.WAKE_AND_UNLOCK,
            })
    @interface WakeAndUnlockUpdateReason {
        int HIDE = 0;
        int SHOW = 1;
        int FULFILL = 2;
        int WAKE_AND_UNLOCK = 3;
    }

    /**
     * The default amount of time we stay awake (used for all key input)
     */
    public static final int AWAKE_INTERVAL_BOUNCER_MS = 10000;

    /**
     * How long to wait after the screen turns off due to timeout before
     * turning on the keyguard (i.e, the user has this much time to turn
     * the screen back on without having to face the keyguard).
     */
    public static final int KEYGUARD_LOCK_AFTER_DELAY_DEFAULT = 5000;

    /**
     * How long we'll wait for the {@link ViewMediatorCallback#keyguardDoneDrawing()}
     * callback before unblocking a call to {@link #setKeyguardEnabled(boolean)}
     * that is re-enabling the keyguard.
     */
    private static final int KEYGUARD_DONE_DRAWING_TIMEOUT_MS = 2000;

    private static final int UNOCCLUDE_ANIMATION_DURATION = 250;

    /**
     * How far down to animate the unoccluding activity, in terms of percent of the activity's
     * height.
     */
    private static final float UNOCCLUDE_TRANSLATE_DISTANCE_PERCENT = 0.1f;

    /**
     * Boolean option for doKeyguardLocked/doKeyguardTimeout which, when set to true, forces the
     * keyguard to show even if it is disabled for the current user.
     */
    public static final String OPTION_FORCE_SHOW = "force_show";
    public static final String SYS_BOOT_REASON_PROP = "sys.boot.reason.last";
    public static final String REBOOT_MAINLINE_UPDATE = "reboot,mainline_update";
    private final DreamOverlayStateController mDreamOverlayStateController;
    private final JavaAdapter mJavaAdapter;
    private final WallpaperRepository mWallpaperRepository;

    /** The stream type that the lock sounds are tied to. */
    private int mUiSoundsStreamType;

    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 SysuiStatusBarStateController mStatusBarStateController;
    private final Executor mUiBgExecutor;
    private final ScreenOffAnimationController mScreenOffAnimationController;
    private final Lazy<NotificationShadeDepthController> mNotificationShadeDepthController;
    private final Lazy<ShadeController> mShadeController;

    private boolean mSystemReady;
    private boolean mBootCompleted;
    private boolean mBootSendUserPresent;
    private boolean mShuttingDown;
    private boolean mDozing;
    private boolean mAnimatingScreenOff;
    private final Context mContext;
    private final FalsingCollector mFalsingCollector;

    /** High level access to the power manager for WakeLocks */
    private final PowerManager mPM;

    /** TrustManager for letting it know when we change visibility */
    private final TrustManager mTrustManager;

    /** UserSwitcherController for creating guest user on boot complete */
    private final UserSwitcherController mUserSwitcherController;
    private final SecureSettings mSecureSettings;
    private final SystemSettings mSystemSettings;
    private final SystemClock mSystemClock;
    private SystemPropertiesHelper mSystemPropertiesHelper;

    /**
     * Used to keep the device awake while to ensure the keyguard finishes opening before
     * we sleep.
     */
    private PowerManager.WakeLock mShowKeyguardWakeLock;

    private final Lazy<KeyguardViewController> mKeyguardViewControllerLazy;

    // these are protected by synchronized (this)

    /**
     * External apps (like the phone app) can tell us to disable the keyguard.
     */
    private boolean mExternallyEnabled = true;

    /**
     * Remember if an external call to {@link #setKeyguardEnabled} with value
     * false caused us to hide the keyguard, so that we need to reshow it once
     * the keyguard is re-enabled with another call with value true.
     */
    private boolean mNeedToReshowWhenReenabled = false;

    // cached value of whether we are showing (need to know this to quickly
    // answer whether the input should be restricted)
    private boolean mShowing;

    // AOD is enabled and status bar is in AOD state.
    private boolean mAodShowing;

    // Dream overlay is visible.
    private boolean mDreamOverlayShowing;

    /** Cached value of #isInputRestricted */
    private boolean mInputRestricted;

    // true if the keyguard is hidden by another window
    private boolean mOccluded = false;

    /**
     * Whether the {@link #mOccludeAnimationController} is currently playing the occlusion
     * animation.
     */
    private boolean mOccludeAnimationPlaying = false;

    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)}
     */
    private int mDelayedShowingSequence;

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

    private final DismissCallbackRegistry mDismissCallbackRegistry;

    // the properties of the keyguard

    private final KeyguardUpdateMonitor mUpdateMonitor;
    private final Lazy<NotificationShadeWindowController> mNotificationShadeWindowControllerLazy;

    /**
     * Last SIM state reported by the telephony system.
     * Index is the slotId - in case of multiple SIM cards.
     */
    private final SparseIntArray mLastSimStates = new SparseIntArray();

    /**
     * Indicates if a SIM card had the SIM PIN enabled during the initialization, before
     * reaching the SIM_STATE_READY state. The flag is reset to false at SIM_STATE_READY.
     * Index is the slotId - in case of multiple SIM cards.
     */
    private final SparseBooleanArray mSimWasLocked = new SparseBooleanArray();

    private boolean mDeviceInteractive;
    private boolean mGoingToSleep;

    // last known state of the cellular connection
    private String mPhoneState = TelephonyManager.EXTRA_STATE_IDLE;

    /**
     * Whether a hide is pending and we are just waiting for #startKeyguardExitAnimation to be
     * called.
     * */
    private boolean mHiding;

    /**
     * we send this intent when the keyguard is dismissed.
     */
    private static final Intent USER_PRESENT_INTENT = new Intent(Intent.ACTION_USER_PRESENT)
            .addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING
                    | Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT
                    | Intent.FLAG_RECEIVER_VISIBLE_TO_INSTANT_APPS);

    private static final Bundle USER_PRESENT_INTENT_OPTIONS =
            BroadcastOptions.makeBasic()
                    .setDeferralPolicy(BroadcastOptions.DEFERRAL_POLICY_UNTIL_ACTIVE)
                    .setDeliveryGroupPolicy(BroadcastOptions.DELIVERY_GROUP_POLICY_MOST_RECENT)
                    .toBundle();

    /**
     * {@link #setKeyguardEnabled} waits on this condition when it re-enables
     * the keyguard.
     */
    private boolean mWaitingUntilKeyguardVisible = false;
    private final LockPatternUtils mLockPatternUtils;
    private final BroadcastDispatcher mBroadcastDispatcher;
    private boolean mKeyguardDonePending = false;
    private boolean mUnlockingAndWakingFromDream = false;
    private boolean mHideAnimationRun = false;
    private boolean mHideAnimationRunning = false;

    private SoundPool mLockSounds;
    private int mLockSoundId;
    private int mUnlockSoundId;
    private int mTrustedSoundId;
    private int mLockSoundStreamId;
    private final float mPowerButtonY;
    private final float mWindowCornerRadius;

    /**
     * The duration in milliseconds of the dream open animation.
     */
    private final int mDreamOpenAnimationDuration;

    /**
     * Whether unlock and wake should be sequenced.
     */
    private final boolean mOrderUnlockAndWake;

    /**
     * The animation used for hiding keyguard. This is used to fetch the animation timings if
     * WindowManager is not providing us with them.
     */
    private Animation mHideAnimation;

    /**
     * The volume applied to the lock/unlock sounds.
     */
    private float mLockSoundVolume;

    /**
     * For managing external displays
     */
    private final KeyguardDisplayManager mKeyguardDisplayManager;

    private final ArrayList<IKeyguardStateCallback> mKeyguardStateCallbacks = new ArrayList<>();

    /**
     * When starting going to sleep, we figured out that we need to reset Keyguard state and this
     * should be committed when finished going to sleep.
     */
    private boolean mPendingReset;

    /**
     * When starting going to sleep, we figured out that we need to lock Keyguard and this should be
     * committed when finished going to sleep.
     */
    private boolean mPendingLock;

    /**
     * When starting to go away, flag a need to show the PIN lock so the keyguard can be brought
     * back.
     */
    private boolean mPendingPinLock = false;

    /**
     * Whether a power button gesture (such as double tap for camera) has been detected. This is
     * delivered directly from {@link KeyguardService}, immediately upon the gesture being detected.
     * This is used in {@link #onStartedWakingUp} to decide whether to execute the pending lock, or
     * ignore and reset it because we are actually launching an activity.
     *
     * This needs to be delivered directly to us, rather than waiting for
     * {@link CommandQueue#onCameraLaunchGestureDetected}, because that call is asynchronous and is
     * often delivered after the call to {@link #onStartedWakingUp}, which results in us locking the
     * keyguard and then launching the activity behind it.
     */
    private boolean mPowerGestureIntercepted = false;

    /**
     * Controller for showing individual "work challenge" lock screen windows inside managed profile
     * tasks when the current user has been unlocked but the profile is still locked.
     */
    private WorkLockActivityController mWorkLockController;

    private boolean mLockLater;
    private boolean mShowHomeOverLockscreen;
    private boolean mInGestureNavigationMode;
    private CharSequence mCustomMessage;

    /**
     * Whether the RemoteAnimation on the app/launcher surface behind the keyguard is 'running'.
     * Note that this does not necessarily mean the surface is currently in motion - we may be
     * 'animating' it along with the user's finger during a swipe to unlock gesture, a gesture that
     * can be paused or reversed.
     */
    private boolean mSurfaceBehindRemoteAnimationRunning;

    /**
     * Whether we've asked to make the app/launcher surface behind the keyguard visible, via a call
     * to {@link android.app.IActivityTaskManager#keyguardGoingAway(int)}.
     *
     * Since that's an IPC, this doesn't necessarily mean the remote animation has started yet.
     * {@link #mSurfaceBehindRemoteAnimationRunning} will be true if the call completed and the
     * animation is now running.
     */
    private boolean mSurfaceBehindRemoteAnimationRequested = false;

    /**
     * Callback to run to end the RemoteAnimation on the app/launcher surface behind the keyguard.
     */
    private IRemoteAnimationFinishedCallback mSurfaceBehindRemoteAnimationFinishedCallback;

    /**
     * The animation runner to use for the next exit animation.
     */
    private IRemoteAnimationRunner mKeyguardExitAnimationRunner;

    private CentralSurfaces mCentralSurfaces;

    private IRemoteAnimationFinishedCallback mUnoccludeFromDreamFinishedCallback;

    private final DeviceConfig.OnPropertiesChangedListener mOnPropertiesChangedListener =
            new DeviceConfig.OnPropertiesChangedListener() {
            @Override
            public void onPropertiesChanged(DeviceConfig.Properties properties) {
                if (properties.getKeyset().contains(NAV_BAR_HANDLE_SHOW_OVER_LOCKSCREEN)) {
                    mShowHomeOverLockscreen = properties.getBoolean(
                            NAV_BAR_HANDLE_SHOW_OVER_LOCKSCREEN, true /* defaultValue */);
                }
            }
    };

    private final DreamOverlayStateController.Callback mDreamOverlayStateCallback =
            new DreamOverlayStateController.Callback() {
                @Override
                public void onStateChanged() {
                    mDreamOverlayShowing = mDreamOverlayStateController.isOverlayActive();
                }
            };

    KeyguardUpdateMonitorCallback mUpdateCallback = new KeyguardUpdateMonitorCallback() {

        @Override
        public void onKeyguardVisibilityChanged(boolean visible) {
            synchronized (KeyguardViewMediator.this) {
                if (!visible && mPendingPinLock) {
                    Log.i(TAG, "PIN lock requested, starting keyguard");

                    // Bring the keyguard back in order to show the PIN lock
                    mPendingPinLock = false;
                    doKeyguardLocked(null);
                }
            }
        }

        @Override
        public void onUserSwitching(int userId) {
            if (DEBUG) Log.d(TAG, String.format("onUserSwitching %d", userId));
            synchronized (KeyguardViewMediator.this) {
                resetKeyguardDonePendingLocked();
                dismiss(null /* callback */, null /* message */);
                adjustStatusBarLocked();
            }
        }

        @Override
        public void onUserSwitchComplete(int userId) {
            if (DEBUG) Log.d(TAG, String.format("onUserSwitchComplete %d", userId));
            // We are calling dismiss again and with a delay as there are race conditions
            // in some scenarios caused by async layout listeners
            mHandler.postDelayed(() -> dismiss(null /* callback */, null /* message */), 500);
        }

        @Override
        public void onDeviceProvisioned() {
            sendUserPresentBroadcast();
        }

        @Override
        public void onSimStateChanged(int subId, int slotId, int simState) {

            if (DEBUG_SIM_STATES) {
                Log.d(TAG, "onSimStateChanged(subId=" + subId + ", slotId=" + slotId
                        + ",state=" + simState + ")");
            }

            int size = mKeyguardStateCallbacks.size();
            boolean simPinSecure = mUpdateMonitor.isSimPinSecure();
            for (int i = size - 1; i >= 0; i--) {
                try {
                    mKeyguardStateCallbacks.get(i).onSimSecureStateChanged(simPinSecure);
                } catch (RemoteException e) {
                    Slog.w(TAG, "Failed to call onSimSecureStateChanged", e);
                    if (e instanceof DeadObjectException) {
                        mKeyguardStateCallbacks.remove(i);
                    }
                }
            }

            boolean lastSimStateWasLocked;
            synchronized (KeyguardViewMediator.this) {
                int lastState = mLastSimStates.get(slotId);
                lastSimStateWasLocked = (lastState == TelephonyManager.SIM_STATE_PIN_REQUIRED
                        || lastState == TelephonyManager.SIM_STATE_PUK_REQUIRED);
                mLastSimStates.append(slotId, simState);
            }

            switch (simState) {
                case TelephonyManager.SIM_STATE_NOT_READY:
                case TelephonyManager.SIM_STATE_ABSENT:
                case TelephonyManager.SIM_STATE_UNKNOWN:
                    mPendingPinLock = false;
                    // only force lock screen in case of missing sim if user hasn't
                    // gone through setup wizard
                    synchronized (KeyguardViewMediator.this) {
                        if (shouldWaitForProvisioning()) {
                            if (!mShowing) {
                                if (DEBUG_SIM_STATES) Log.d(TAG, "ICC_ABSENT isn't showing,"
                                        + " we need to show the keyguard since the "
                                        + "device isn't provisioned yet.");
                                doKeyguardLocked(null);
                            } else {
                                resetStateLocked();
                            }
                        }
                        if (simState == TelephonyManager.SIM_STATE_ABSENT) {
                            // MVNO SIMs can become transiently NOT_READY when switching networks,
                            // so we should only lock when they are ABSENT.
                            if (lastSimStateWasLocked) {
                                if (DEBUG_SIM_STATES) Log.d(TAG, "SIM moved to ABSENT when the "
                                        + "previous state was locked. Reset the state.");
                                resetStateLocked();
                            }
                            mSimWasLocked.append(slotId, false);
                        }
                    }
                    break;
                case TelephonyManager.SIM_STATE_PIN_REQUIRED:
                case TelephonyManager.SIM_STATE_PUK_REQUIRED:
                    synchronized (KeyguardViewMediator.this) {
                        mSimWasLocked.append(slotId, true);
                        mPendingPinLock = true;
                        if (!mShowing) {
                            if (DEBUG_SIM_STATES) Log.d(TAG,
                                    "INTENT_VALUE_ICC_LOCKED and keygaurd isn't "
                                    + "showing; need to show keyguard so user can enter sim pin");
                            doKeyguardLocked(null);
                        } else {
                            resetStateLocked();
                        }
                    }
                    break;
                case TelephonyManager.SIM_STATE_PERM_DISABLED:
                    synchronized (KeyguardViewMediator.this) {
                        if (!mShowing) {
                            if (DEBUG_SIM_STATES) Log.d(TAG, "PERM_DISABLED and "
                                  + "keygaurd isn't showing.");
                            doKeyguardLocked(null);
                        } else {
                            if (DEBUG_SIM_STATES) Log.d(TAG, "PERM_DISABLED, resetStateLocked to"
                                  + "show permanently disabled message in lockscreen.");
                            resetStateLocked();
                        }
                    }
                    break;
                case TelephonyManager.SIM_STATE_READY:
                    synchronized (KeyguardViewMediator.this) {
                        if (DEBUG_SIM_STATES) Log.d(TAG, "READY, reset state? " + mShowing);
                        if (mShowing && mSimWasLocked.get(slotId, false)) {
                            if (DEBUG_SIM_STATES) Log.d(TAG, "SIM moved to READY when the "
                                    + "previously was locked. Reset the state.");
                            mSimWasLocked.append(slotId, false);
                            resetStateLocked();
                        }
                    }
                    break;
                default:
                    if (DEBUG_SIM_STATES) Log.v(TAG, "Unspecific state: " + simState);
                    break;
            }
        }

        @Override
        public void onBiometricAuthFailed(BiometricSourceType biometricSourceType) {
            final int currentUser = KeyguardUpdateMonitor.getCurrentUser();
            if (mLockPatternUtils.isSecure(currentUser)) {
                mLockPatternUtils.getDevicePolicyManager().reportFailedBiometricAttempt(
                        currentUser);
            }
        }

        @Override
        public void onBiometricAuthenticated(int userId, BiometricSourceType biometricSourceType,
                boolean isStrongBiometric) {
            if (mLockPatternUtils.isSecure(userId)) {
                mLockPatternUtils.getDevicePolicyManager().reportSuccessfulBiometricAttempt(
                        userId);
            }
        }

        @Override
        public void onTrustChanged(int userId) {
            if (userId == KeyguardUpdateMonitor.getCurrentUser()) {
                synchronized (KeyguardViewMediator.this) {
                    notifyTrustedChangedLocked(mUpdateMonitor.getUserHasTrust(userId));
                }
            }
        }

        @Override
        public void onStrongAuthStateChanged(int userId) {
            if (mLockPatternUtils.isUserInLockdown(KeyguardUpdateMonitor.getCurrentUser())) {
                doKeyguardLocked(null);
            }
        }
    };

    ViewMediatorCallback mViewMediatorCallback = new ViewMediatorCallback() {

        @Override
        public void userActivity() {
            KeyguardViewMediator.this.userActivity();
        }

        @Override
        public void keyguardDone(boolean primaryAuth, int targetUserId) {
            if (targetUserId != KeyguardUpdateMonitor.getCurrentUser()) {
                return;
            }
            if (DEBUG) Log.d(TAG, "keyguardDone");
            tryKeyguardDone();
        }

        @Override
        public void keyguardDoneDrawing() {
            Trace.beginSection("KeyguardViewMediator.mViewMediatorCallback#keyguardDoneDrawing");
            mHandler.sendEmptyMessage(KEYGUARD_DONE_DRAWING);
            Trace.endSection();
        }

        @Override
        public void setNeedsInput(boolean needsInput) {
            mKeyguardViewControllerLazy.get().setNeedsInput(needsInput);
        }

        @Override
        public void keyguardDonePending(boolean primaryAuth, int targetUserId) {
            Trace.beginSection("KeyguardViewMediator.mViewMediatorCallback#keyguardDonePending");
            if (DEBUG) Log.d(TAG, "keyguardDonePending");
            if (targetUserId != KeyguardUpdateMonitor.getCurrentUser()) {
                Trace.endSection();
                return;
            }

            mKeyguardDonePending = true;
            mHideAnimationRun = true;
            mHideAnimationRunning = true;
            mKeyguardViewControllerLazy.get()
                    .startPreHideAnimation(mHideAnimationFinishedRunnable);
            mHandler.sendEmptyMessageDelayed(KEYGUARD_DONE_PENDING_TIMEOUT,
                    KEYGUARD_DONE_PENDING_TIMEOUT_MS);
            Trace.endSection();
        }

        @Override
        public void keyguardGone() {
            Trace.beginSection("KeyguardViewMediator.mViewMediatorCallback#keyguardGone");
            if (DEBUG) Log.d(TAG, "keyguardGone");
            mKeyguardViewControllerLazy.get().setKeyguardGoingAwayState(false);
            mKeyguardDisplayManager.hide();
            mUpdateMonitor.startBiometricWatchdog();

            // It's possible that the device was unlocked (via BOUNCER or Fingerprint) while
            // dreaming. It's time to wake up.
            if (mUnlockingAndWakingFromDream) {
                Log.d(TAG, "waking from dream after unlock");
                setUnlockAndWakeFromDream(false, WakeAndUnlockUpdateReason.FULFILL);

                if (mKeyguardStateController.isShowing()) {
                    Log.d(TAG, "keyguard showing after keyguardGone, dismiss");
                    mKeyguardViewControllerLazy.get()
                            .notifyKeyguardAuthenticated(!mWakeAndUnlocking);
                } else {
                    Log.d(TAG, "keyguard gone, waking up from dream");
                    mPM.wakeUp(mSystemClock.uptimeMillis(),
                            mWakeAndUnlocking ? PowerManager.WAKE_REASON_BIOMETRIC
                            : PowerManager.WAKE_REASON_GESTURE,
                            "com.android.systemui:UNLOCK_DREAMING");
                }
            }
            Trace.endSection();
        }

        @Override
        public void readyForKeyguardDone() {
            Trace.beginSection("KeyguardViewMediator.mViewMediatorCallback#readyForKeyguardDone");
            if (mKeyguardDonePending) {
                mKeyguardDonePending = false;
                tryKeyguardDone();
            }
            Trace.endSection();
        }

        @Override
        public void resetKeyguard() {
            resetStateLocked();
        }

        @Override
        public void onCancelClicked() {
            mKeyguardViewControllerLazy.get().onCancelClicked();
        }

        @Override
        public void onBouncerSwipeDown() {
            mKeyguardViewControllerLazy.get().reset(/* hideBouncerWhenShowing= */ true);
        }

        @Override
        public void playTrustedSound() {
            KeyguardViewMediator.this.playTrustedSound();
        }

        @Override
        public boolean isScreenOn() {
            return mDeviceInteractive;
        }

        @Override
        public int getBouncerPromptReason() {
            int currentUser = KeyguardUpdateMonitor.getCurrentUser();
            boolean trustAgentsEnabled = mUpdateMonitor.isTrustUsuallyManaged(currentUser);
            boolean biometricsEnrolled =
                    mUpdateMonitor.isUnlockingWithBiometricsPossible(currentUser);
            boolean any = trustAgentsEnabled || biometricsEnrolled;
            KeyguardUpdateMonitor.StrongAuthTracker strongAuthTracker =
                    mUpdateMonitor.getStrongAuthTracker();
            int strongAuth = strongAuthTracker.getStrongAuthForUser(currentUser);
            boolean allowedNonStrongAfterIdleTimeout =
                    strongAuthTracker.isNonStrongBiometricAllowedAfterIdleTimeout(currentUser);

            if (any && !strongAuthTracker.hasUserAuthenticatedSinceBoot()) {
                String reasonForReboot = mSystemPropertiesHelper.get(SYS_BOOT_REASON_PROP);
                if (Objects.equals(reasonForReboot, REBOOT_MAINLINE_UPDATE)) {
                    return KeyguardSecurityView.PROMPT_REASON_RESTART_FOR_MAINLINE_UPDATE;
                } else {
                    return  KeyguardSecurityView.PROMPT_REASON_RESTART;
                }
            } else if (any && (strongAuth & STRONG_AUTH_REQUIRED_AFTER_TIMEOUT) != 0) {
                return KeyguardSecurityView.PROMPT_REASON_TIMEOUT;
            } else if (any && (strongAuth & STRONG_AUTH_REQUIRED_AFTER_USER_LOCKDOWN) != 0) {
                return KeyguardSecurityView.PROMPT_REASON_USER_REQUEST;
            } else if ((strongAuth & STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW) != 0) {
                return KeyguardSecurityView.PROMPT_REASON_DEVICE_ADMIN;
            } else if (trustAgentsEnabled
                    && (strongAuth & SOME_AUTH_REQUIRED_AFTER_USER_REQUEST) != 0) {
                return KeyguardSecurityView.PROMPT_REASON_USER_REQUEST;
            } else if (trustAgentsEnabled
                    && (strongAuth & SOME_AUTH_REQUIRED_AFTER_TRUSTAGENT_EXPIRED) != 0) {
                return KeyguardSecurityView.PROMPT_REASON_TRUSTAGENT_EXPIRED;
            } else if (any && ((strongAuth & STRONG_AUTH_REQUIRED_AFTER_LOCKOUT) != 0
                    || mUpdateMonitor.isFingerprintLockedOut())) {
                return KeyguardSecurityView.PROMPT_REASON_AFTER_LOCKOUT;
            } else if (any && (strongAuth & STRONG_AUTH_REQUIRED_FOR_UNATTENDED_UPDATE) != 0) {
                return KeyguardSecurityView.PROMPT_REASON_PREPARE_FOR_UPDATE;
            } else if (any && (strongAuth
                    & STRONG_AUTH_REQUIRED_AFTER_NON_STRONG_BIOMETRICS_TIMEOUT) != 0) {
                return KeyguardSecurityView.PROMPT_REASON_NON_STRONG_BIOMETRIC_TIMEOUT;
            } else if (any && !allowedNonStrongAfterIdleTimeout) {
                return KeyguardSecurityView.PROMPT_REASON_NON_STRONG_BIOMETRIC_TIMEOUT;
            }
            return KeyguardSecurityView.PROMPT_REASON_NONE;
        }

        @Override
        public CharSequence consumeCustomMessage() {
            final CharSequence message = mCustomMessage;
            mCustomMessage = null;
            return message;
        }

        @Override
        public void setCustomMessage(CharSequence customMessage) {
            mCustomMessage = customMessage;
        }
    };

    /**
     * Animation launch controller for activities that occlude the keyguard.
     */
    @VisibleForTesting
    final ActivityLaunchAnimator.Controller mOccludeAnimationController =
            new ActivityLaunchAnimator.Controller() {
                @Override
                public void onLaunchAnimationStart(boolean isExpandingFullyAbove) {
                    mOccludeAnimationPlaying = true;
                    mScrimControllerLazy.get().setOccludeAnimationPlaying(true);
                }

                @Override
                public void onLaunchAnimationCancelled(@Nullable Boolean newKeyguardOccludedState) {
                    Log.d(TAG, "Occlude launch animation cancelled. Occluded state is now: "
                            + mOccluded);
                    mOccludeAnimationPlaying = false;

                    // Ensure keyguard state is set correctly if we're cancelled.
                    mCentralSurfaces.updateIsKeyguard();
                    mScrimControllerLazy.get().setOccludeAnimationPlaying(false);
                }

                @Override
                public void onLaunchAnimationEnd(boolean launchIsFullScreen) {
                    if (launchIsFullScreen) {
                        mShadeController.get().instantCollapseShade();
                    }

                    mOccludeAnimationPlaying = false;

                    // Hide the keyguard now that we're done launching the occluding activity over
                    // it.
                    mCentralSurfaces.updateIsKeyguard();
                    mScrimControllerLazy.get().setOccludeAnimationPlaying(false);

                    mInteractionJankMonitor.end(CUJ_LOCKSCREEN_OCCLUSION);
                }

                @NonNull
                @Override
                public ViewGroup getLaunchContainer() {
                    return ((ViewGroup) mKeyguardViewControllerLazy.get()
                            .getViewRootImpl().getView());
                }

                @Override
                public void setLaunchContainer(@NonNull ViewGroup launchContainer) {
                    // No-op, launch container is always the shade.
                    Log.wtf(TAG, "Someone tried to change the launch container for the "
                            + "ActivityLaunchAnimator, which should never happen.");
                }

                @NonNull
                @Override
                public LaunchAnimator.State createAnimatorState() {
                    final int fullWidth = getLaunchContainer().getWidth();
                    final int fullHeight = getLaunchContainer().getHeight();

                    if (mUpdateMonitor.isSecureCameraLaunchedOverKeyguard()) {
                        final float initialHeight = fullHeight / 3f;
                        final float initialWidth = fullWidth / 3f;

                        // Start the animation near the power button, at one-third size, since the
                        // camera was launched from the power button.
                        return new LaunchAnimator.State(
                                (int) (mPowerButtonY - initialHeight / 2f) /* top */,
                                (int) (mPowerButtonY + initialHeight / 2f) /* bottom */,
                                (int) (fullWidth - initialWidth) /* left */,
                                fullWidth /* right */,
                                mWindowCornerRadius, mWindowCornerRadius);
                    } else {
                        final float initialHeight = fullHeight / 2f;
                        final float initialWidth = fullWidth / 2f;

                        // Start the animation in the center of the screen, scaled down to half
                        // size.
                        return new LaunchAnimator.State(
                                (int) (fullHeight - initialHeight) / 2,
                                (int) (initialHeight + (fullHeight - initialHeight) / 2),
                                (int) (fullWidth - initialWidth) / 2,
                                (int) (initialWidth + (fullWidth - initialWidth) / 2),
                                mWindowCornerRadius, mWindowCornerRadius);
                    }
                }
            };

    private final IRemoteAnimationRunner.Stub mExitAnimationRunner =
            new IRemoteAnimationRunner.Stub() {
        @Override // Binder interface
        public void onAnimationStart(@WindowManager.TransitionOldType int transit,
                RemoteAnimationTarget[] apps,
                RemoteAnimationTarget[] wallpapers,
                RemoteAnimationTarget[] nonApps,
                IRemoteAnimationFinishedCallback finishedCallback) {
            Trace.beginSection("mExitAnimationRunner.onAnimationStart#startKeyguardExitAnimation");
            startKeyguardExitAnimation(transit, apps, wallpapers, nonApps, finishedCallback);
            if (mFeatureFlags.isEnabled(Flags.KEYGUARD_WM_STATE_REFACTOR)) {
                mWmLockscreenVisibilityManager.get().onKeyguardGoingAwayRemoteAnimationStart(
                        transit, apps, wallpapers, nonApps, finishedCallback);
            }
            Trace.endSection();
        }

        @Override // Binder interface
        public void onAnimationCancelled() {
            cancelKeyguardExitAnimation();
            if (mFeatureFlags.isEnabled(Flags.KEYGUARD_WM_STATE_REFACTOR)) {
                mWmLockscreenVisibilityManager.get().onKeyguardGoingAwayRemoteAnimationCancelled();
            }
        }
    };

    private final IRemoteAnimationRunner mOccludeAnimationRunner =
            new OccludeActivityLaunchRemoteAnimationRunner(mOccludeAnimationController);

    private final IRemoteAnimationRunner mOccludeByDreamAnimationRunner =
            new IRemoteAnimationRunner.Stub() {
                @Nullable private ValueAnimator mOccludeByDreamAnimator;

                @Override
                public void onAnimationCancelled() {
                    mContext.getMainExecutor().execute(() -> {
                        if (mOccludeByDreamAnimator != null) {
                            mOccludeByDreamAnimator.cancel();
                        }
                    });

                    Log.d(TAG, "OccludeByDreamAnimator#onAnimationCancelled. Set occluded = true");
                    setOccluded(true /* isOccluded */, false /* animate */);
                }

                @Override
                public void onAnimationStart(int transit, RemoteAnimationTarget[] apps,
                        RemoteAnimationTarget[] wallpapers, RemoteAnimationTarget[] nonApps,
                        IRemoteAnimationFinishedCallback finishedCallback) throws RemoteException {
                    if (!handleOnAnimationStart(
                                transit, apps, wallpapers, nonApps, 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 */);
                        finishedCallback.onAnimationFinished();
                    }
                }

                private boolean handleOnAnimationStart(int transit, RemoteAnimationTarget[] apps,
                        RemoteAnimationTarget[] wallpapers, RemoteAnimationTarget[] nonApps,
                        IRemoteAnimationFinishedCallback finishedCallback) throws RemoteException {
                    if (apps == null || apps.length == 0 || apps[0] == null) {
                        Log.d(TAG, "No apps provided to the OccludeByDream runner; "
                                + "skipping occluding animation.");
                        return false;
                    }

                    final RemoteAnimationTarget primary = apps[0];
                    final boolean isDream = (apps[0].taskInfo != null
                            && apps[0].taskInfo.topActivityType
                            == WindowConfiguration.ACTIVITY_TYPE_DREAM);
                    if (!isDream) {
                        Log.w(TAG, "The occluding app isn't Dream; "
                                + "finishing up. Please check that the config is correct.");
                        return false;
                    }

                    final SyncRtSurfaceTransactionApplier applier =
                            new SyncRtSurfaceTransactionApplier(
                                    mKeyguardViewControllerLazy.get().getViewRootImpl().getView());

                    mContext.getMainExecutor().execute(() -> {
                        if (mOccludeByDreamAnimator != null) {
                            mOccludeByDreamAnimator.cancel();
                        }

                        mOccludeByDreamAnimator = ValueAnimator.ofFloat(0f, 1f);
                        mOccludeByDreamAnimator.setDuration(mDreamOpenAnimationDuration);
                        //mOccludeByDreamAnimator.setInterpolator(Interpolators.LINEAR);
                        mOccludeByDreamAnimator.addUpdateListener(
                                animation -> {
                                    SyncRtSurfaceTransactionApplier.SurfaceParams.Builder
                                            paramsBuilder =
                                            new SyncRtSurfaceTransactionApplier.SurfaceParams
                                                    .Builder(primary.leash)
                                                    .withAlpha(animation.getAnimatedFraction());
                                    applier.scheduleApply(paramsBuilder.build());
                                });
                        mOccludeByDreamAnimator.addListener(new AnimatorListenerAdapter() {
                            private boolean mIsCancelled = false;
                            @Override
                            public void onAnimationCancel(Animator animation) {
                                mIsCancelled = true;
                            }

                            @Override
                            public void onAnimationEnd(Animator animation) {
                                try {
                                    if (!mIsCancelled) {
                                        // We're already on the main thread, don't queue this call
                                        handleSetOccluded(true /* isOccluded */,
                                                false /* animate */);
                                    }
                                    finishedCallback.onAnimationFinished();
                                    mOccludeByDreamAnimator = null;
                                } catch (RemoteException e) {
                                    e.printStackTrace();
                                }
                            }
                        });

                        mOccludeByDreamAnimator.start();
                    });
                    return true;
                }
            };

    /**
     * Animation controller for activities that unocclude the keyguard. This does not use the
     * ActivityLaunchAnimator since we're just translating down, rather than emerging from a view
     * or the power button.
     */
    private final IRemoteAnimationRunner mUnoccludeAnimationRunner =
            new IRemoteAnimationRunner.Stub() {

                @Nullable private ValueAnimator mUnoccludeAnimator;
                private final Matrix mUnoccludeMatrix = new Matrix();

                @Override
                public void onAnimationCancelled() {
                    mContext.getMainExecutor().execute(() -> {
                        if (mUnoccludeAnimator != null) {
                            mUnoccludeAnimator.cancel();
                        }
                    });

                    Log.d(TAG, "Unocclude animation cancelled.");
                    mInteractionJankMonitor.cancel(CUJ_LOCKSCREEN_OCCLUSION);
                }

                @Override
                public void onAnimationStart(int transit, RemoteAnimationTarget[] apps,
                        RemoteAnimationTarget[] wallpapers,
                        RemoteAnimationTarget[] nonApps,
                        IRemoteAnimationFinishedCallback finishedCallback) throws RemoteException {
                    Log.d(TAG, "UnoccludeAnimator#onAnimationStart. Set occluded = false.");
                    mInteractionJankMonitor.begin(
                            createInteractionJankMonitorConf(CUJ_LOCKSCREEN_OCCLUSION)
                                    .setTag("UNOCCLUDE"));
                    setOccluded(false /* isOccluded */, true /* animate */);

                    if (apps == null || apps.length == 0 || apps[0] == null) {
                        Log.d(TAG, "No apps provided to unocclude runner; "
                                + "skipping animation and unoccluding.");
                        finishedCallback.onAnimationFinished();
                        return;
                    }

                    mRemoteAnimationTarget = apps[0];
                    final boolean isDream = (apps[0].taskInfo != null
                            && apps[0].taskInfo.topActivityType
                            == WindowConfiguration.ACTIVITY_TYPE_DREAM);


                    final View localView = mKeyguardViewControllerLazy.get()
                            .getViewRootImpl().getView();
                    final SyncRtSurfaceTransactionApplier applier =
                            new SyncRtSurfaceTransactionApplier(localView);

                    mContext.getMainExecutor().execute(() -> {
                        if (mUnoccludeAnimator != null) {
                            mUnoccludeAnimator.cancel();
                        }

                        if (isDream) {
                            initAlphaForAnimationTargets(wallpapers);
                            getRemoteSurfaceAlphaApplier().accept(0.0f);
                            mDreamingToLockscreenTransitionViewModel.get()
                                    .startTransition();
                            mUnoccludeFromDreamFinishedCallback = finishedCallback;
                            return;
                        }

                        mUnoccludeAnimator = ValueAnimator.ofFloat(1f, 0f);
                        mUnoccludeAnimator.setDuration(UNOCCLUDE_ANIMATION_DURATION);
                        mUnoccludeAnimator.setInterpolator(Interpolators.TOUCH_RESPONSE);
                        mUnoccludeAnimator.addUpdateListener(
                                animation -> {
                                    final float animatedValue =
                                            (float) animation.getAnimatedValue();

                                    final float surfaceHeight =
                                            mRemoteAnimationTarget.screenSpaceBounds.height();

                                    // Fade for all types of activities.
                                    SyncRtSurfaceTransactionApplier.SurfaceParams.Builder
                                            paramsBuilder =
                                            new SyncRtSurfaceTransactionApplier.SurfaceParams
                                                    .Builder(mRemoteAnimationTarget.leash)
                                                    .withAlpha(animatedValue);

                                    mUnoccludeMatrix.setTranslate(
                                            0f,
                                            (1f - animatedValue)
                                                    * surfaceHeight
                                                    * UNOCCLUDE_TRANSLATE_DISTANCE_PERCENT);

                                    paramsBuilder.withMatrix(mUnoccludeMatrix).withCornerRadius(
                                            mWindowCornerRadius);

                                    applier.scheduleApply(paramsBuilder.build());
                                });
                        mUnoccludeAnimator.addListener(new AnimatorListenerAdapter() {
                            @Override
                            public void onAnimationEnd(Animator animation) {
                                try {
                                    finishedCallback.onAnimationFinished();
                                    mUnoccludeAnimator = null;

                                    mInteractionJankMonitor.end(CUJ_LOCKSCREEN_OCCLUSION);
                                } catch (RemoteException e) {
                                    e.printStackTrace();
                                }
                            }
                        });

                        mUnoccludeAnimator.start();
                    });
                }
            };

    private static void initAlphaForAnimationTargets(
            @android.annotation.NonNull RemoteAnimationTarget[] targets
    ) {
        for (RemoteAnimationTarget target : targets) {
            if (target.mode != MODE_OPENING) continue;

            try (Transaction t = new Transaction()) {
                t.setAlpha(target.leash, 1.f);
                t.apply();
            }
        }
    }

    private Consumer<Float> getRemoteSurfaceAlphaApplier() {
        return (Float alpha) -> {
            if (mRemoteAnimationTarget == null) return;
            final View localView = mKeyguardViewControllerLazy.get().getViewRootImpl().getView();
            final SyncRtSurfaceTransactionApplier applier =
                    new SyncRtSurfaceTransactionApplier(localView);
            SyncRtSurfaceTransactionApplier.SurfaceParams
                    params =
                    new SyncRtSurfaceTransactionApplier.SurfaceParams
                            .Builder(mRemoteAnimationTarget.leash)
                            .withAlpha(alpha).build();
            applier.scheduleApply(params);
        };
    }

    private Consumer<TransitionStep> getFinishedCallbackConsumer() {
        return (TransitionStep step) -> {
            if (mUnoccludeFromDreamFinishedCallback == null) return;
            try {
                mUnoccludeFromDreamFinishedCallback.onAnimationFinished();
                mUnoccludeFromDreamFinishedCallback = null;
            } catch (RemoteException e) {
                Log.e(TAG, "Wasn't able to callback", e);
            }
            mInteractionJankMonitor.end(CUJ_LOCKSCREEN_OCCLUSION);
        };
    }

    private DeviceConfigProxy mDeviceConfig;
    private DozeParameters mDozeParameters;

    private final KeyguardStateController mKeyguardStateController;
    private final KeyguardStateController.Callback mKeyguardStateControllerCallback =
            new KeyguardStateController.Callback() {
        @Override
        public void onPrimaryBouncerShowingChanged() {
            synchronized (KeyguardViewMediator.this) {
                if (mKeyguardStateController.isPrimaryBouncerShowing()
                        && !mKeyguardStateController.isKeyguardGoingAway()) {
                    mPendingPinLock = false;
                }
                adjustStatusBarLocked(mKeyguardStateController.isPrimaryBouncerShowing(), false);
            }
        }
    };

    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 FeatureFlags mFeatureFlags;
    private final UiEventLogger mUiEventLogger;
    private final SessionTracker mSessionTracker;
    private final CoroutineDispatcher mMainDispatcher;
    private final Lazy<DreamingToLockscreenTransitionViewModel>
            mDreamingToLockscreenTransitionViewModel;
    private RemoteAnimationTarget mRemoteAnimationTarget;

    private Lazy<WindowManagerLockscreenVisibilityManager> mWmLockscreenVisibilityManager;

    /**
     * Injected constructor. See {@link KeyguardModule}.
     */
    public KeyguardViewMediator(
            Context context,
            UiEventLogger uiEventLogger,
            SessionTracker sessionTracker,
            UserTracker userTracker,
            FalsingCollector falsingCollector,
            LockPatternUtils lockPatternUtils,
            BroadcastDispatcher broadcastDispatcher,
            Lazy<KeyguardViewController> statusBarKeyguardViewManagerLazy,
            DismissCallbackRegistry dismissCallbackRegistry,
            KeyguardUpdateMonitor keyguardUpdateMonitor, DumpManager dumpManager,
            @UiBackground Executor uiBgExecutor, PowerManager powerManager,
            TrustManager trustManager,
            UserSwitcherController userSwitcherController,
            DeviceConfigProxy deviceConfig,
            NavigationModeController navigationModeController,
            KeyguardDisplayManager keyguardDisplayManager,
            DozeParameters dozeParameters,
            SysuiStatusBarStateController statusBarStateController,
            KeyguardStateController keyguardStateController,
            Lazy<KeyguardUnlockAnimationController> keyguardUnlockAnimationControllerLazy,
            ScreenOffAnimationController screenOffAnimationController,
            Lazy<NotificationShadeDepthController> notificationShadeDepthController,
            ScreenOnCoordinator screenOnCoordinator,
            KeyguardTransitions keyguardTransitions,
            InteractionJankMonitor interactionJankMonitor,
            DreamOverlayStateController dreamOverlayStateController,
            JavaAdapter javaAdapter,
            WallpaperRepository wallpaperRepository,
            Lazy<ShadeController> shadeControllerLazy,
            Lazy<NotificationShadeWindowController> notificationShadeWindowControllerLazy,
            Lazy<ActivityLaunchAnimator> activityLaunchAnimator,
            Lazy<ScrimController> scrimControllerLazy,
            FeatureFlags featureFlags,
            SecureSettings secureSettings,
            SystemSettings systemSettings,
            SystemClock systemClock,
            @Main CoroutineDispatcher mainDispatcher,
            Lazy<DreamingToLockscreenTransitionViewModel> dreamingToLockscreenTransitionViewModel,
            SystemPropertiesHelper systemPropertiesHelper,
            Lazy<WindowManagerLockscreenVisibilityManager> wmLockscreenVisibilityManager) {
        mContext = context;
        mUserTracker = userTracker;
        mFalsingCollector = falsingCollector;
        mLockPatternUtils = lockPatternUtils;
        mBroadcastDispatcher = broadcastDispatcher;
        mKeyguardViewControllerLazy = statusBarKeyguardViewManagerLazy;
        mDismissCallbackRegistry = dismissCallbackRegistry;
        mNotificationShadeDepthController = notificationShadeDepthController;
        mUiBgExecutor = uiBgExecutor;
        mUpdateMonitor = keyguardUpdateMonitor;
        mPM = powerManager;
        mTrustManager = trustManager;
        mUserSwitcherController = userSwitcherController;
        mSecureSettings = secureSettings;
        mSystemSettings = systemSettings;
        mSystemClock = systemClock;
        mSystemPropertiesHelper = systemPropertiesHelper;
        mStatusBarService = IStatusBarService.Stub.asInterface(
                ServiceManager.getService(Context.STATUS_BAR_SERVICE));
        mKeyguardDisplayManager = keyguardDisplayManager;
        mShadeController = shadeControllerLazy;
        dumpManager.registerDumpable(getClass().getName(), this);
        mDeviceConfig = deviceConfig;
        mScreenOnCoordinator = screenOnCoordinator;
        mKeyguardTransitions = keyguardTransitions;
        mNotificationShadeWindowControllerLazy = notificationShadeWindowControllerLazy;
        mShowHomeOverLockscreen = mDeviceConfig.getBoolean(
                DeviceConfig.NAMESPACE_SYSTEMUI,
                NAV_BAR_HANDLE_SHOW_OVER_LOCKSCREEN,
                /* defaultValue = */ true);
        mDeviceConfig.addOnPropertiesChangedListener(
                DeviceConfig.NAMESPACE_SYSTEMUI,
                mHandler::post,
                mOnPropertiesChangedListener);
        mInGestureNavigationMode =
                QuickStepContract.isGesturalMode(navigationModeController.addListener(mode -> {
                    mInGestureNavigationMode = QuickStepContract.isGesturalMode(mode);
                }));
        mDozeParameters = dozeParameters;

        mStatusBarStateController = statusBarStateController;
        statusBarStateController.addCallback(this);

        mKeyguardStateController = keyguardStateController;
        keyguardStateController.addCallback(mKeyguardStateControllerCallback);
        mKeyguardUnlockAnimationControllerLazy = keyguardUnlockAnimationControllerLazy;
        mScreenOffAnimationController = screenOffAnimationController;
        mInteractionJankMonitor = interactionJankMonitor;
        mDreamOverlayStateController = dreamOverlayStateController;
        mJavaAdapter = javaAdapter;
        mWallpaperRepository = wallpaperRepository;

        mActivityLaunchAnimator = activityLaunchAnimator;
        mScrimControllerLazy = scrimControllerLazy;

        mPowerButtonY = context.getResources().getDimensionPixelSize(
                R.dimen.physical_power_button_center_screen_location_y);
        mWindowCornerRadius = ScreenDecorationsUtils.getWindowCornerRadius(context);

        mDreamOpenAnimationDuration = (int) DREAMING_ANIMATION_DURATION_MS;

        mFeatureFlags = featureFlags;
        mUiEventLogger = uiEventLogger;
        mSessionTracker = sessionTracker;

        mDreamingToLockscreenTransitionViewModel = dreamingToLockscreenTransitionViewModel;
        mWmLockscreenVisibilityManager = wmLockscreenVisibilityManager;
        mMainDispatcher = mainDispatcher;

        mOrderUnlockAndWake = context.getResources().getBoolean(
                com.android.internal.R.bool.config_orderUnlockAndWake);
    }

    public void userActivity() {
        mPM.userActivity(mSystemClock.uptimeMillis(), false);
    }

    private void setupLocked() {
        mShowKeyguardWakeLock = mPM.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "show keyguard");
        mShowKeyguardWakeLock.setReferenceCounted(false);

        IntentFilter filter = new IntentFilter();
        filter.addAction(Intent.ACTION_SHUTDOWN);
        mBroadcastDispatcher.registerReceiver(mBroadcastReceiver, filter);

        final IntentFilter delayedActionFilter = new IntentFilter();
        delayedActionFilter.addAction(DELAYED_KEYGUARD_ACTION);
        delayedActionFilter.addAction(DELAYED_LOCK_PROFILE_ACTION);
        delayedActionFilter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY);
        mContext.registerReceiver(mDelayedLockBroadcastReceiver, delayedActionFilter,
                SYSTEMUI_PERMISSION, null /* scheduler */,
                Context.RECEIVER_EXPORTED_UNAUDITED);

        mAlarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);

        KeyguardUpdateMonitor.setCurrentUser(mUserTracker.getUserId());

        // Assume keyguard is showing (unless it's disabled) until we know for sure, unless Keyguard
        // is disabled.
        if (isKeyguardServiceEnabled()) {
            setShowingLocked(!shouldWaitForProvisioning()
                    && !mLockPatternUtils.isLockScreenDisabled(
                            KeyguardUpdateMonitor.getCurrentUser()), true /* forceCallbacks */);
        } else {
            // The system's keyguard is disabled or missing.
            setShowingLocked(false /* showing */, true /* forceCallbacks */);
        }

        boolean isLLwpEnabled = getWallpaperManager().isLockscreenLiveWallpaperEnabled();
        mKeyguardTransitions.register(
                KeyguardService.wrap(this, getExitAnimationRunner(), isLLwpEnabled),
                KeyguardService.wrap(this, getOccludeAnimationRunner(), isLLwpEnabled),
                KeyguardService.wrap(this, getOccludeByDreamAnimationRunner(), isLLwpEnabled),
                KeyguardService.wrap(this, getUnoccludeAnimationRunner(), isLLwpEnabled));

        final ContentResolver cr = mContext.getContentResolver();

        mDeviceInteractive = mPM.isInteractive();

        mLockSounds = new SoundPool.Builder()
                .setMaxStreams(1)
                .setAudioAttributes(
                        new AudioAttributes.Builder()
                                .setUsage(AudioAttributes.USAGE_ASSISTANCE_SONIFICATION)
                                .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
                                .build())
                .build();
        String soundPath = Settings.Global.getString(cr, Settings.Global.LOCK_SOUND);
        if (soundPath != null) {
            mLockSoundId = mLockSounds.load(soundPath, 1);
        }
        if (soundPath == null || mLockSoundId == 0) {
            Log.w(TAG, "failed to load lock sound from " + soundPath);
        }
        soundPath = Settings.Global.getString(cr, Settings.Global.UNLOCK_SOUND);
        if (soundPath != null) {
            mUnlockSoundId = mLockSounds.load(soundPath, 1);
        }
        if (soundPath == null || mUnlockSoundId == 0) {
            Log.w(TAG, "failed to load unlock sound from " + soundPath);
        }
        soundPath = Settings.Global.getString(cr, Settings.Global.TRUSTED_SOUND);
        if (soundPath != null) {
            mTrustedSoundId = mLockSounds.load(soundPath, 1);
        }
        if (soundPath == null || mTrustedSoundId == 0) {
            Log.w(TAG, "failed to load trusted sound from " + soundPath);
        }

        int lockSoundDefaultAttenuation = mContext.getResources().getInteger(
                com.android.internal.R.integer.config_lockSoundVolumeDb);
        mLockSoundVolume = (float)Math.pow(10, (float)lockSoundDefaultAttenuation/20);

        mHideAnimation = AnimationUtils.loadAnimation(mContext,
                com.android.internal.R.anim.lock_screen_behind_enter);

        mWorkLockController = new WorkLockActivityController(mContext, mUserTracker);

        mJavaAdapter.alwaysCollectFlow(
                mWallpaperRepository.getWallpaperSupportsAmbientMode(),
                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) {
            setupLocked();
        }
    }

    /**
     * Let us know that the system is ready after startup.
     */
    public void onSystemReady() {
        mHandler.obtainMessage(SYSTEM_READY).sendToTarget();
    }

    private void handleSystemReady() {
        synchronized (this) {
            if (DEBUG) Log.d(TAG, "onSystemReady");
            mSystemReady = true;
            doKeyguardLocked(null);
            mUpdateMonitor.registerCallback(mUpdateCallback);
            adjustStatusBarLocked();
            mDreamOverlayStateController.addCallback(mDreamOverlayStateCallback);

            ViewRootImpl viewRootImpl = mKeyguardViewControllerLazy.get().getViewRootImpl();
            if (viewRootImpl != null) {
                collectFlow(viewRootImpl.getView(),
                        mDreamingToLockscreenTransitionViewModel.get().getDreamOverlayAlpha(),
                        getRemoteSurfaceAlphaApplier(), mMainDispatcher);
                collectFlow(viewRootImpl.getView(),
                        mDreamingToLockscreenTransitionViewModel.get().getTransitionEnded(),
                        getFinishedCallbackConsumer(), mMainDispatcher);
            }
        }
        // Most services aren't available until the system reaches the ready state, so we
        // send it here when the device first boots.
        maybeSendUserPresentBroadcast();
    }

    /**
     * Called to let us know the screen was turned off.
     * @param offReason either {@link WindowManagerPolicyConstants#OFF_BECAUSE_OF_USER} or
     * {@link WindowManagerPolicyConstants#OFF_BECAUSE_OF_TIMEOUT}.
     */
    public void onStartedGoingToSleep(@WindowManagerPolicyConstants.OffReason int offReason) {
        if (DEBUG) Log.d(TAG, "onStartedGoingToSleep(" + offReason + ")");
        synchronized (this) {
            mDeviceInteractive = false;
            mPowerGestureIntercepted = false;
            mGoingToSleep = true;

            // Lock immediately based on setting if secure (user has a pin/pattern/password).
            // This also "locks" the device when not secure to provide easy access to the
            // camera while preventing unwanted input.
            int currentUser = KeyguardUpdateMonitor.getCurrentUser();
            final boolean lockImmediately =
                    mLockPatternUtils.getPowerButtonInstantlyLocks(currentUser)
                            || !mLockPatternUtils.isSecure(currentUser);
            long timeout = getLockTimeout(KeyguardUpdateMonitor.getCurrentUser());
            mLockLater = false;
            if (mShowing && !mKeyguardStateController.isKeyguardGoingAway()) {
                // If we are going to sleep but the keyguard is showing (and will continue to be
                // showing, not in the process of going away) then reset its state. Otherwise, let
                // this fall through and explicitly re-lock the keyguard.
                mPendingReset = true;
            } else if (
                    (offReason == WindowManagerPolicyConstants.OFF_BECAUSE_OF_TIMEOUT
                            && timeout > 0)
                            || (offReason == WindowManagerPolicyConstants.OFF_BECAUSE_OF_USER
                            && !lockImmediately)) {
                doKeyguardLaterLocked(timeout);
                mLockLater = true;
            } else if (!mLockPatternUtils.isLockScreenDisabled(currentUser)) {
                setPendingLock(true);
            }

            if (mPendingLock) {
                playSounds(true);
            }
        }

        mUpdateMonitor.dispatchStartedGoingToSleep(offReason);

        // Reset keyguard going away state, so we can start listening for fingerprint. We
        // explicitly DO NOT want to call
        // mKeyguardViewControllerLazy.get().setKeyguardGoingAwayState(false)
        // here, since that will mess with the device lock state.
        mUpdateMonitor.dispatchKeyguardGoingAway(false);

        notifyStartedGoingToSleep();
    }

    /**
     * Called to let us know the screen finished turning off.
     * @param offReason either {@link WindowManagerPolicyConstants#OFF_BECAUSE_OF_USER} or
     * {@link WindowManagerPolicyConstants#OFF_BECAUSE_OF_TIMEOUT}.
     */
    public void onFinishedGoingToSleep(
            @WindowManagerPolicyConstants.OffReason int offReason, boolean cameraGestureTriggered) {
        if (DEBUG) Log.d(TAG, "onFinishedGoingToSleep(" + offReason + ")");
        synchronized (this) {
            mDeviceInteractive = false;
            mGoingToSleep = false;
            mWakeAndUnlocking = false;
            mAnimatingScreenOff = mDozeParameters.shouldAnimateDozingChange();

            resetKeyguardDonePendingLocked();
            mHideAnimationRun = false;

            notifyFinishedGoingToSleep();

            if (cameraGestureTriggered) {
                // Just to make sure, make sure the device is awake.
                mContext.getSystemService(PowerManager.class).wakeUp(mSystemClock.uptimeMillis(),
                        PowerManager.WAKE_REASON_CAMERA_LAUNCH,
                        "com.android.systemui:CAMERA_GESTURE_PREVENT_LOCK");
                setPendingLock(false);
                mPendingReset = false;
                mPowerGestureIntercepted = true;
                if (DEBUG) {
                    Log.d(TAG, "cameraGestureTriggered=" + cameraGestureTriggered
                            + ",mPowerGestureIntercepted=" + mPowerGestureIntercepted);
                }
            }

            if (mPendingReset) {
                resetStateLocked();
                mPendingReset = false;
            }

            maybeHandlePendingLock();

            // We do not have timeout and power button instant lock setting for profile lock.
            // So we use the personal setting if there is any. But if there is no device
            // we need to make sure we lock it immediately when the screen is off.
            if (!mLockLater && !cameraGestureTriggered) {
                doKeyguardForChildProfilesLocked();
            }

        }
        mUpdateMonitor.dispatchFinishedGoingToSleep(offReason);
    }

    /**
     * Locks the keyguard if {@link #mPendingLock} is true, and there are no reasons to further
     * delay the pending lock.
     *
     * If you do delay handling the pending lock, you must ensure that this method is ALWAYS called
     * again when the condition causing the delay changes. Otherwise, the device may remain unlocked
     * indefinitely.
     */
    public void maybeHandlePendingLock() {
        if (mPendingLock) {

            // The screen off animation is playing or is about to be, so if we lock now, the
            // foreground app will vanish and the keyguard will jump-cut in. Delay it, until either:
            //   - The screen off animation ends. We will call maybeHandlePendingLock from
            //     the end action in UnlockedScreenOffAnimationController#animateInKeyguard.
            //   - The screen off animation is cancelled by the device waking back up. We will call
            //     maybeHandlePendingLock from KeyguardViewMediator#onStartedWakingUp.
            if (mScreenOffAnimationController.shouldDelayKeyguardShow()) {
                if (DEBUG) {
                    Log.d(TAG, "#maybeHandlePendingLock: not handling because the screen off "
                            + "animation's shouldDelayKeyguardShow() returned true. This should be "
                            + "handled soon by #onStartedWakingUp, or by the end actions of the "
                            + "screen off animation.");
                }

                return;
            }

            // The device was re-locked while in the process of unlocking. If we lock now, callbacks
            // in the unlock sequence might end up re-unlocking the device. Delay the lock until the
            // keyguard is done going away. We'll call maybeHandlePendingLock again in
            // StatusBar#finishKeyguardFadingAway, which is always responsible for setting
            // isKeyguardGoingAway to false.
            if (mKeyguardStateController.isKeyguardGoingAway()) {
                if (DEBUG) {
                    Log.d(TAG, "#maybeHandlePendingLock: not handling because the keyguard is "
                            + "going away. This should be handled shortly by "
                            + "StatusBar#finishKeyguardFadingAway.");
                }

                return;
            }

            if (DEBUG) {
                Log.d(TAG, "#maybeHandlePendingLock: handling pending lock; locking keyguard.");
            }

            doKeyguardLocked(null);
            setPendingLock(false);
        }
    }

    private boolean isKeyguardServiceEnabled() {
        try {
            return mContext.getPackageManager().getServiceInfo(
                    new ComponentName(mContext, KeyguardService.class), 0).isEnabled();
        } catch (NameNotFoundException e) {
            return true;
        }
    }

    private long getLockTimeout(int userId) {
        // if the screen turned off because of timeout or the user hit the power button,
        // and we don't need to lock immediately, set an alarm
        // to enable it a bit later (i.e, give the user a chance
        // to turn the screen back on within a certain window without
        // having to unlock the screen)

        // From SecuritySettings
        final long lockAfterTimeout = mSecureSettings.getIntForUser(LOCK_SCREEN_LOCK_AFTER_TIMEOUT,
                KEYGUARD_LOCK_AFTER_DELAY_DEFAULT,
                userId);

        // From DevicePolicyAdmin
        final long policyTimeout = mLockPatternUtils.getDevicePolicyManager()
                .getMaximumTimeToLock(null, userId);

        long timeout;

        if (policyTimeout <= 0) {
            timeout = lockAfterTimeout;
        } else {
            // From DisplaySettings
            long displayTimeout = mSystemSettings.getIntForUser(SCREEN_OFF_TIMEOUT,
                    KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT,
                    userId);

            // policy in effect. Make sure we don't go beyond policy limit.
            displayTimeout = Math.max(displayTimeout, 0); // ignore negative values
            timeout = Math.min(policyTimeout - displayTimeout, lockAfterTimeout);
            timeout = Math.max(timeout, 0);
        }
        return timeout;
    }

    private void doKeyguardLaterLocked() {
        long timeout = getLockTimeout(KeyguardUpdateMonitor.getCurrentUser());
        if (timeout == 0) {
            doKeyguardLocked(null);
        } else {
            doKeyguardLaterLocked(timeout);
        }
    }

    private void doKeyguardLaterLocked(long timeout) {
        // Lock in the future
        long when = mSystemClock.elapsedRealtime() + timeout;
        Intent intent = new Intent(DELAYED_KEYGUARD_ACTION);
        intent.setPackage(mContext.getPackageName());
        intent.putExtra("seq", mDelayedShowingSequence);
        intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
        PendingIntent sender = PendingIntent.getBroadcast(mContext,
                0, intent, PendingIntent.FLAG_CANCEL_CURRENT |  PendingIntent.FLAG_IMMUTABLE);
        mAlarmManager.setExactAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP, when, sender);
        if (DEBUG) Log.d(TAG, "setting alarm to turn off keyguard, seq = "
                         + mDelayedShowingSequence);
        doKeyguardLaterForChildProfilesLocked();
    }

    private void doKeyguardLaterForChildProfilesLocked() {
        for (UserInfo profile : mUserTracker.getUserProfiles()) {
            if (!profile.isEnabled()) continue;
            final int profileId = profile.id;
            if (mLockPatternUtils.isSeparateProfileChallengeEnabled(profileId)) {
                long userTimeout = getLockTimeout(profileId);
                if (userTimeout == 0) {
                    doKeyguardForChildProfilesLocked();
                } else {
                    long userWhen = mSystemClock.elapsedRealtime() + userTimeout;
                    Intent lockIntent = new Intent(DELAYED_LOCK_PROFILE_ACTION);
                    lockIntent.setPackage(mContext.getPackageName());
                    lockIntent.putExtra("seq", mDelayedProfileShowingSequence);
                    lockIntent.putExtra(Intent.EXTRA_USER_ID, profileId);
                    lockIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
                    PendingIntent lockSender = PendingIntent.getBroadcast(
                            mContext, 0, lockIntent,
                            PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_IMMUTABLE);
                    mAlarmManager.setExactAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP,
                            userWhen, lockSender);
                }
            }
        }
    }

    private void doKeyguardForChildProfilesLocked() {
        for (UserInfo profile : mUserTracker.getUserProfiles()) {
            if (!profile.isEnabled()) continue;
            final int profileId = profile.id;
            if (mLockPatternUtils.isSeparateProfileChallengeEnabled(profileId)) {
                lockProfile(profileId);
            }
        }
    }

    private void cancelDoKeyguardLaterLocked() {
        mDelayedShowingSequence++;
    }

    private void cancelDoKeyguardForChildProfilesLocked() {
        mDelayedProfileShowingSequence++;
    }

    /**
     * It will let us know when the device is waking up.
     */
    public void onStartedWakingUp(@PowerManager.WakeReason int pmWakeReason,
            boolean cameraGestureTriggered) {
        Trace.beginSection("KeyguardViewMediator#onStartedWakingUp");

        // TODO: Rename all screen off/on references to interactive/sleeping
        synchronized (this) {
            mDeviceInteractive = true;
            if (mPendingLock && !cameraGestureTriggered && !mWakeAndUnlocking) {
                doKeyguardLocked(null);
            }
            mAnimatingScreenOff = false;
            cancelDoKeyguardLaterLocked();
            cancelDoKeyguardForChildProfilesLocked();
            if (cameraGestureTriggered) {
                mPowerGestureIntercepted = true;
            }
            if (DEBUG) {
                Log.d(TAG, "onStartedWakingUp, seq = " + mDelayedShowingSequence
                        + ", mPowerGestureIntercepted = " + mPowerGestureIntercepted);
            }
            notifyStartedWakingUp();
        }
        mUiEventLogger.logWithInstanceIdAndPosition(
                BiometricUnlockController.BiometricUiEvent.STARTED_WAKING_UP,
                0,
                null,
                mSessionTracker.getSessionId(SESSION_KEYGUARD),
                pmWakeReason
        );
        mUpdateMonitor.dispatchStartedWakingUp(pmWakeReason);
        maybeSendUserPresentBroadcast();
        Trace.endSection();
    }

    public void onScreenTurnedOff() {
        mUpdateMonitor.dispatchScreenTurnedOff();
    }

    private void maybeSendUserPresentBroadcast() {
        if (mSystemReady && mLockPatternUtils.isLockScreenDisabled(
                KeyguardUpdateMonitor.getCurrentUser())) {
            // Lock screen is disabled because the user has set the preference to "None".
            // In this case, send out ACTION_USER_PRESENT here instead of in
            // handleKeyguardDone()
            sendUserPresentBroadcast();
        } else if (mSystemReady && shouldWaitForProvisioning()) {
            // Skipping the lockscreen because we're not yet provisioned, but we still need to
            // notify the StrongAuthTracker that it's now safe to run trust agents, in case the
            // user sets a credential later.
            mLockPatternUtils.userPresent(KeyguardUpdateMonitor.getCurrentUser());
        }
    }

    /**
     * A dream started. We should lock after the usual screen-off lock timeout regardless if
     * there is a secure lock pattern or not
     */
    public void onDreamingStarted() {
        mUpdateMonitor.dispatchDreamingStarted();
        synchronized (this) {
            final boolean alwaysShowKeyguard =
                mFeatureFlags.isEnabled(Flags.LOCKSCREEN_WITHOUT_SECURE_LOCK_WHEN_DREAMING);
            if (mDeviceInteractive
                && (alwaysShowKeyguard ||
                mLockPatternUtils.isSecure(KeyguardUpdateMonitor.getCurrentUser()))) {
                doKeyguardLaterLocked();
            }
        }
    }

    /**
     * A dream stopped.
     */
    public void onDreamingStopped() {
        mUpdateMonitor.dispatchDreamingStopped();
        synchronized (this) {
            if (mDeviceInteractive) {
                cancelDoKeyguardLaterLocked();
            }
        }
    }

    /**
     * Same semantics as {@link WindowManagerPolicyConstants#enableKeyguard}; provide
     * a way for external stuff to override normal keyguard behavior.  For instance
     * the phone app disables the keyguard when it receives incoming calls.
     */
    public void setKeyguardEnabled(boolean enabled) {
        synchronized (this) {
            if (DEBUG) Log.d(TAG, "setKeyguardEnabled(" + enabled + ")");

            mExternallyEnabled = enabled;

            if (!enabled && mShowing) {
                if (mLockPatternUtils.isUserInLockdown(KeyguardUpdateMonitor.getCurrentUser())) {
                    Log.d(TAG, "keyguardEnabled(false) overridden by user lockdown");
                    return;
                }
                // hiding keyguard that is showing, remember to reshow later
                if (DEBUG) Log.d(TAG, "remembering to reshow, hiding keyguard, "
                        + "disabling status bar expansion");
                mNeedToReshowWhenReenabled = true;
                updateInputRestrictedLocked();
                hideLocked();
            } else if (enabled && mNeedToReshowWhenReenabled) {
                // re-enabled after previously hidden, reshow
                if (DEBUG) Log.d(TAG, "previously hidden, reshowing, reenabling "
                        + "status bar expansion");
                mNeedToReshowWhenReenabled = false;
                updateInputRestrictedLocked();

                showLocked(null);

                // block until we know the keyguard is done drawing (and post a message
                // to unblock us after a timeout, so we don't risk blocking too long
                // and causing an ANR).
                mWaitingUntilKeyguardVisible = true;
                mHandler.sendEmptyMessageDelayed(KEYGUARD_DONE_DRAWING,
                        KEYGUARD_DONE_DRAWING_TIMEOUT_MS);
                if (DEBUG) Log.d(TAG, "waiting until mWaitingUntilKeyguardVisible is false");
                while (mWaitingUntilKeyguardVisible) {
                    try {
                        wait();
                    } catch (InterruptedException e) {
                        Thread.currentThread().interrupt();
                    }
                }
                if (DEBUG) Log.d(TAG, "done waiting for mWaitingUntilKeyguardVisible");
            }
        }
    }

    /**
     * @see android.app.KeyguardManager#exitKeyguardSecurely
     */
    public void verifyUnlock(IKeyguardExitCallback callback) {
        Trace.beginSection("KeyguardViewMediator#verifyUnlock");
        synchronized (this) {
            if (DEBUG) Log.d(TAG, "verifyUnlock");
            if (shouldWaitForProvisioning()) {
                // don't allow this api when the device isn't provisioned
                if (DEBUG) Log.d(TAG, "ignoring because device isn't provisioned");
                try {
                    callback.onKeyguardExitResult(false);
                } catch (RemoteException e) {
                    Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e);
                }
            } else if (mExternallyEnabled) {
                // this only applies when the user has externally disabled the
                // keyguard.  this is unexpected and means the user is not
                // using the api properly.
                Log.w(TAG, "verifyUnlock called when not externally disabled");
                try {
                    callback.onKeyguardExitResult(false);
                } catch (RemoteException e) {
                    Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e);
                }
            } else if (!isSecure()) {

                // Keyguard is not secure, no need to do anything, and we don't need to reshow
                // the Keyguard after the client releases the Keyguard lock.
                mExternallyEnabled = true;
                mNeedToReshowWhenReenabled = false;
                updateInputRestricted();
                try {
                    callback.onKeyguardExitResult(true);
                } catch (RemoteException e) {
                    Slog.w(TAG, "Failed to call onKeyguardExitResult(true)", e);
                }
            } else {

                // Since we prevent apps from hiding the Keyguard if we are secure, this should be
                // a no-op as well.
                try {
                    callback.onKeyguardExitResult(false);
                } catch (RemoteException e) {
                    Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e);
                }
            }
        }
        Trace.endSection();
    }

    /**
     * Is the keyguard currently showing and not being force hidden?
     */
    public boolean isShowingAndNotOccluded() {
        return mShowing && !mOccluded;
    }

    public boolean isOccludeAnimationPlaying() {
        return mOccludeAnimationPlaying;
    }

    /**
     * Notify us when the keyguard is occluded by another window
     */
    public void setOccluded(boolean isOccluded, boolean animate) {
        Log.d(TAG, "setOccluded(" + isOccluded + ")");

        Trace.beginSection("KeyguardViewMediator#setOccluded");
        if (DEBUG) Log.d(TAG, "setOccluded " + isOccluded);
        mHandler.removeMessages(SET_OCCLUDED);
        Message msg = mHandler.obtainMessage(SET_OCCLUDED, isOccluded ? 1 : 0, animate ? 1 : 0);
        mHandler.sendMessage(msg);
        Trace.endSection();
    }

    public IRemoteAnimationRunner getExitAnimationRunner() {
        return validatingRemoteAnimationRunner(mExitAnimationRunner);
    }

    public IRemoteAnimationRunner getOccludeAnimationRunner() {
        return validatingRemoteAnimationRunner(mOccludeAnimationRunner);
    }

    public IRemoteAnimationRunner getOccludeByDreamAnimationRunner() {
        return validatingRemoteAnimationRunner(mOccludeByDreamAnimationRunner);
    }

    public IRemoteAnimationRunner getUnoccludeAnimationRunner() {
        return validatingRemoteAnimationRunner(mUnoccludeAnimationRunner);
    }

    public boolean isHiding() {
        return mHiding;
    }

    public boolean isAnimatingScreenOff() {
        return mAnimatingScreenOff;
    }

    /**
     * Handles SET_OCCLUDED message sent by setOccluded()
     */
    private void handleSetOccluded(boolean isOccluded, boolean animate) {
        Trace.beginSection("KeyguardViewMediator#handleSetOccluded");
        Log.d(TAG, "handleSetOccluded(" + isOccluded + ")");
        EventLogTags.writeSysuiKeyguard(isOccluded ? 1 : 0, animate ? 1 : 0);

        mInteractionJankMonitor.cancel(CUJ_LOCKSCREEN_TRANSITION_FROM_AOD);

        synchronized (KeyguardViewMediator.this) {
            if (mHiding && isOccluded) {
                // We're in the process of going away but WindowManager wants to show a
                // SHOW_WHEN_LOCKED activity instead.
                // TODO(bc-unlock): Migrate to remote animation.
                startKeyguardExitAnimation(0, 0);
            }

            mPowerGestureIntercepted =
                    isOccluded && mUpdateMonitor.isSecureCameraLaunchedOverKeyguard();

            if (mOccluded != isOccluded) {
                mOccluded = isOccluded;
                mKeyguardViewControllerLazy.get().setOccluded(isOccluded, animate
                        && mDeviceInteractive);
                adjustStatusBarLocked();
            }

            if (DEBUG) {
                Log.d(TAG, "isOccluded=" + isOccluded + ",mPowerGestureIntercepted="
                        + mPowerGestureIntercepted);
            }
        }
        Trace.endSection();
    }

    /**
     * Used by PhoneWindowManager to enable the keyguard due to a user activity timeout.
     * This must be safe to call from any thread and with any window manager locks held.
     */
    public void doKeyguardTimeout(Bundle options) {
        mHandler.removeMessages(KEYGUARD_TIMEOUT);
        Message msg = mHandler.obtainMessage(KEYGUARD_TIMEOUT, options);
        // Treat these messages with priority - A call to timeout means the device should lock
        // as soon as possible and not wait for other messages on the thread to process first.
        mHandler.sendMessageAtFrontOfQueue(msg);
    }

    /**
     * Given the state of the keyguard, is the input restricted?
     * Input is restricted when the keyguard is showing, or when the keyguard
     * was suppressed by an app that disabled the keyguard or we haven't been provisioned yet.
     */
    public boolean isInputRestricted() {
        return mShowing || mNeedToReshowWhenReenabled;
    }

    private void updateInputRestricted() {
        synchronized (this) {
            updateInputRestrictedLocked();
        }
    }

    private void updateInputRestrictedLocked() {
        boolean inputRestricted = isInputRestricted();
        if (mInputRestricted != inputRestricted) {
            mInputRestricted = inputRestricted;
            int size = mKeyguardStateCallbacks.size();
            for (int i = size - 1; i >= 0; i--) {
                final IKeyguardStateCallback callback = mKeyguardStateCallbacks.get(i);
                try {
                    callback.onInputRestrictedStateChanged(inputRestricted);
                } catch (RemoteException e) {
                    Slog.w(TAG, "Failed to call onDeviceProvisioned", e);
                    if (e instanceof DeadObjectException) {
                        mKeyguardStateCallbacks.remove(callback);
                    }
                }
            }
        }
    }

    /**
     * Enable the keyguard if the settings are appropriate.
     */
    private void doKeyguardLocked(Bundle options) {
        // if another app is disabling us, don't show
        if (!mExternallyEnabled
                && !mLockPatternUtils.isUserInLockdown(KeyguardUpdateMonitor.getCurrentUser())) {
            if (DEBUG) Log.d(TAG, "doKeyguard: not showing because externally disabled");

            mNeedToReshowWhenReenabled = true;
            return;
        }

        // If the keyguard is already showing, see if we don't need to bother re-showing it. Check
        // flags in both files to account for the hiding animation which results in a delay and
        // discrepancy between flags. If we're in the middle of hiding, do not short circuit so that
        // we explicitly re-set state.
        if (mShowing && mKeyguardStateController.isShowing()) {
            if (mPM.isInteractive() && !mHiding) {
                if (mKeyguardStateController.isKeyguardGoingAway()) {
                    Log.e(TAG, "doKeyguard: we're still showing, but going away. Re-show the "
                            + "keyguard rather than short-circuiting and resetting.");
                } else {
                    // It's already showing, and we're not trying to show it while the screen is
                    // off. We can simply reset all of the views, but don't hide the bouncer in case
                    // the user is currently interacting with it.
                    if (DEBUG) Log.d(TAG,
                            "doKeyguard: not showing (instead, resetting) because it is "
                                    + "already showing, we're interactive, we were not "
                                    + "previously hiding. It should be safe to short-circuit "
                                    + "here.");
                    resetStateLocked(/* hideBouncer= */ false);
                    return;
                }
            } else {
                // We are trying to show the keyguard while the screen is off or while we were in
                // the middle of hiding - this results from race conditions involving locking while
                // unlocking. Don't short-circuit here and ensure the keyguard is fully re-shown.
                Log.e(TAG,
                        "doKeyguard: already showing, but re-showing because we're interactive or "
                                + "were in the middle of hiding.");
            }
        }

        // if the setup wizard hasn't run yet, don't show
        final boolean requireSim = !SystemProperties.getBoolean("keyguard.no_require_sim", false);
        final boolean absent = SubscriptionManager.isValidSubscriptionId(
                mUpdateMonitor.getNextSubIdForState(TelephonyManager.SIM_STATE_ABSENT));
        final boolean disabled = SubscriptionManager.isValidSubscriptionId(
                mUpdateMonitor.getNextSubIdForState(TelephonyManager.SIM_STATE_PERM_DISABLED));
        final boolean lockedOrMissing = mUpdateMonitor.isSimPinSecure()
                || ((absent || disabled) && requireSim);

        if (!lockedOrMissing && shouldWaitForProvisioning()) {
            if (DEBUG) {
                Log.d(TAG, "doKeyguard: not showing because device isn't provisioned and the sim is"
                        + " not locked or missing");
            }
            return;
        }

        boolean forceShow = options != null && options.getBoolean(OPTION_FORCE_SHOW, false);
        if (mLockPatternUtils.isLockScreenDisabled(KeyguardUpdateMonitor.getCurrentUser())
                && !lockedOrMissing && !forceShow) {
            if (DEBUG) Log.d(TAG, "doKeyguard: not showing because lockscreen is off");
            return;
        }

        if (DEBUG) Log.d(TAG, "doKeyguard: showing the lock screen");
        showLocked(options);
    }

    private void lockProfile(int userId) {
        mTrustManager.setDeviceLockedForUser(userId, true);
    }

    private boolean shouldWaitForProvisioning() {
        return !mUpdateMonitor.isDeviceProvisioned() && !isSecure();
    }

    /**
     * Dismiss the keyguard through the security layers.
     * @param callback Callback to be informed about the result
     * @param message Message that should be displayed on the bouncer.
     */
    private void handleDismiss(IKeyguardDismissCallback callback, CharSequence message) {
        if (mShowing) {
            if (callback != null) {
                mDismissCallbackRegistry.addCallback(callback);
            }
            mCustomMessage = message;
            mKeyguardViewControllerLazy.get().dismissAndCollapse();
        } else if (callback != null) {
            new DismissCallbackWrapper(callback).notifyDismissError();
        }
    }

    public void dismiss(IKeyguardDismissCallback callback, CharSequence message) {
        mHandler.obtainMessage(DISMISS, new DismissMessage(callback, message)).sendToTarget();
    }

    /**
     * Send message to keyguard telling it to reset its state.
     * @see #handleReset
     */
    private void resetStateLocked() {
        resetStateLocked(/* hideBouncer= */ true);
    }

    private void resetStateLocked(boolean hideBouncer) {
        if (DEBUG) Log.e(TAG, "resetStateLocked");
        Message msg = mHandler.obtainMessage(RESET, hideBouncer ? 1 : 0, 0);
        mHandler.sendMessage(msg);
    }

    /**
     * Send message to keyguard telling it to verify unlock
     * @see #handleVerifyUnlock()
     */
    private void verifyUnlockLocked() {
        if (DEBUG) Log.d(TAG, "verifyUnlockLocked");
        mHandler.sendEmptyMessage(VERIFY_UNLOCK);
    }

    private void notifyStartedGoingToSleep() {
        if (DEBUG) Log.d(TAG, "notifyStartedGoingToSleep");
        mHandler.sendEmptyMessage(NOTIFY_STARTED_GOING_TO_SLEEP);
    }

    private void notifyFinishedGoingToSleep() {
        if (DEBUG) Log.d(TAG, "notifyFinishedGoingToSleep");
        mHandler.sendEmptyMessage(NOTIFY_FINISHED_GOING_TO_SLEEP);
    }

    private void notifyStartedWakingUp() {
        if (DEBUG) Log.d(TAG, "notifyStartedWakingUp");
        mHandler.sendEmptyMessage(NOTIFY_STARTED_WAKING_UP);
    }

    /**
     * Send message to keyguard telling it to show itself
     * @see #handleShow
     */
    private void showLocked(Bundle options) {
        Trace.beginSection("KeyguardViewMediator#showLocked acquiring mShowKeyguardWakeLock");
        if (DEBUG) Log.d(TAG, "showLocked");
        // ensure we stay awake until we are finished displaying the keyguard
        mShowKeyguardWakeLock.acquire();
        Message msg = mHandler.obtainMessage(SHOW, options);
        // Treat these messages with priority - This call can originate from #doKeyguardTimeout,
        // meaning the device should lock as soon as possible and not wait for other messages on
        // the thread to process first.
        mHandler.sendMessageAtFrontOfQueue(msg);
        Trace.endSection();
    }

    /**
     * Send message to keyguard telling it to hide itself
     * @see #handleHide()
     */
    private void hideLocked() {
        Trace.beginSection("KeyguardViewMediator#hideLocked");
        if (DEBUG) Log.d(TAG, "hideLocked");
        Message msg = mHandler.obtainMessage(HIDE);
        mHandler.sendMessage(msg);
        Trace.endSection();
    }

    /**
     * Hide the keyguard and let {@code runner} handle the animation.
     *
     * This method should typically be called after {@link ViewMediatorCallback#keyguardDonePending}
     * was called, when we are ready to hide the keyguard. It will do nothing if we were not
     * expecting the keyguard to go away when called.
     */
    public void hideWithAnimation(IRemoteAnimationRunner runner) {
        if (!mKeyguardDonePending) {
            return;
        }

        mKeyguardExitAnimationRunner = runner;
        mViewMediatorCallback.readyForKeyguardDone();
    }

    /**
     * Disable notification shade background blurs until the keyguard is dismissed.
     * (Used during app launch animations)
     */
    public void setBlursDisabledForAppLaunch(boolean disabled) {
        mNotificationShadeDepthController.get().setBlursDisabledForAppLaunch(disabled);
    }

    public boolean isSecure() {
        return isSecure(KeyguardUpdateMonitor.getCurrentUser());
    }

    public boolean isSecure(int userId) {
        return mLockPatternUtils.isSecure(userId)
                || mUpdateMonitor.isSimPinSecure();
    }

    /**
     * Whether any of the SIMs on the device are secured with a PIN. If so, the keyguard should not
     * be dismissable until the PIN is entered, even if the device itself has no lock set.
     */
    public boolean isAnySimPinSecure() {
        for (int i = 0; i < mLastSimStates.size(); i++) {
            final int key = mLastSimStates.keyAt(i);
            if (KeyguardUpdateMonitor.isSimPinSecure(mLastSimStates.get(key))) {
                return true;
            }
        }

        return false;
    }

    public void setSwitchingUser(boolean switching) {
        mUpdateMonitor.setSwitchingUser(switching);
    }

    /**
     * Update the newUserId. Call while holding WindowManagerService lock.
     * NOTE: Should only be called by KeyguardViewMediator in response to the user id changing.
     *
     * @param newUserId The id of the incoming user.
     */
    public void setCurrentUser(int newUserId) {
        KeyguardUpdateMonitor.setCurrentUser(newUserId);
        synchronized (this) {
            notifyTrustedChangedLocked(mUpdateMonitor.getUserHasTrust(newUserId));
        }
    }

    /**
     * This broadcast receiver should be registered with the SystemUI permission.
     */
    private final BroadcastReceiver mDelayedLockBroadcastReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            if (DELAYED_KEYGUARD_ACTION.equals(intent.getAction())) {
                final int sequence = intent.getIntExtra("seq", 0);
                if (DEBUG) Log.d(TAG, "received DELAYED_KEYGUARD_ACTION with seq = "
                        + sequence + ", mDelayedShowingSequence = " + mDelayedShowingSequence);
                synchronized (KeyguardViewMediator.this) {
                    if (mDelayedShowingSequence == sequence) {
                        doKeyguardLocked(null);
                    }
                }
            } else if (DELAYED_LOCK_PROFILE_ACTION.equals(intent.getAction())) {
                final int sequence = intent.getIntExtra("seq", 0);
                int userId = intent.getIntExtra(Intent.EXTRA_USER_ID, 0);
                if (userId != 0) {
                    synchronized (KeyguardViewMediator.this) {
                        if (mDelayedProfileShowingSequence == sequence) {
                            lockProfile(userId);
                        }
                    }
                }
            }
        }
    };

    private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            if (Intent.ACTION_SHUTDOWN.equals(intent.getAction())) {
                synchronized (KeyguardViewMediator.this){
                    mShuttingDown = 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.
     */
    private Handler mHandler = new Handler(Looper.myLooper(), null, true /*async*/) {
        @Override
        public void handleMessage(Message msg) {
            String message = "";
            switch (msg.what) {
                case SHOW:
                    message = "SHOW";
                    handleShow((Bundle) msg.obj);
                    break;
                case HIDE:
                    message = "HIDE";
                    handleHide();
                    break;
                case RESET:
                    message = "RESET";
                    handleReset(msg.arg1 != 0);
                    break;
                case VERIFY_UNLOCK:
                    message = "VERIFY_UNLOCK";
                    Trace.beginSection("KeyguardViewMediator#handleMessage VERIFY_UNLOCK");
                    handleVerifyUnlock();
                    Trace.endSection();
                    break;
                case NOTIFY_STARTED_GOING_TO_SLEEP:
                    message = "NOTIFY_STARTED_GOING_TO_SLEEP";
                    handleNotifyStartedGoingToSleep();
                    break;
                case NOTIFY_FINISHED_GOING_TO_SLEEP:
                    message = "NOTIFY_FINISHED_GOING_TO_SLEEP";
                    handleNotifyFinishedGoingToSleep();
                    break;
                case NOTIFY_STARTED_WAKING_UP:
                    message = "NOTIFY_STARTED_WAKING_UP";
                    Trace.beginSection(
                            "KeyguardViewMediator#handleMessage NOTIFY_STARTED_WAKING_UP");
                    handleNotifyStartedWakingUp();
                    Trace.endSection();
                    break;
                case KEYGUARD_DONE:
                    message = "KEYGUARD_DONE";
                    Trace.beginSection("KeyguardViewMediator#handleMessage KEYGUARD_DONE");
                    handleKeyguardDone();
                    Trace.endSection();
                    break;
                case KEYGUARD_DONE_DRAWING:
                    message = "KEYGUARD_DONE_DRAWING";
                    Trace.beginSection("KeyguardViewMediator#handleMessage KEYGUARD_DONE_DRAWING");
                    handleKeyguardDoneDrawing();
                    Trace.endSection();
                    break;
                case SET_OCCLUDED:
                    message = "SET_OCCLUDED";
                    Trace.beginSection("KeyguardViewMediator#handleMessage SET_OCCLUDED");
                    handleSetOccluded(msg.arg1 != 0, msg.arg2 != 0);
                    Trace.endSection();
                    break;
                case KEYGUARD_TIMEOUT:
                    message = "KEYGUARD_TIMEOUT";
                    synchronized (KeyguardViewMediator.this) {
                        doKeyguardLocked((Bundle) msg.obj);
                    }
                    break;
                case DISMISS:
                    message = "DISMISS";
                    final DismissMessage dismissMsg = (DismissMessage) msg.obj;
                    handleDismiss(dismissMsg.getCallback(), dismissMsg.getMessage());
                    break;
                case START_KEYGUARD_EXIT_ANIM:
                    message = "START_KEYGUARD_EXIT_ANIM";
                    Trace.beginSection(
                            "KeyguardViewMediator#handleMessage START_KEYGUARD_EXIT_ANIM");
                    synchronized (KeyguardViewMediator.this) {
                        mHiding = true;
                    }
                    StartKeyguardExitAnimParams params = (StartKeyguardExitAnimParams) msg.obj;
                    mNotificationShadeWindowControllerLazy.get().batchApplyWindowLayoutParams(
                            () -> {
                                handleStartKeyguardExitAnimation(params.startTime,
                                        params.fadeoutDuration,
                                        params.mApps, params.mWallpapers, params.mNonApps,
                                        params.mFinishedCallback);
                                mFalsingCollector.onSuccessfulUnlock();
                            });
                    Trace.endSection();
                    break;
                case CANCEL_KEYGUARD_EXIT_ANIM:
                    message = "CANCEL_KEYGUARD_EXIT_ANIM";
                    Trace.beginSection(
                            "KeyguardViewMediator#handleMessage CANCEL_KEYGUARD_EXIT_ANIM");
                    handleCancelKeyguardExitAnimation();
                    Trace.endSection();
                    break;
                case KEYGUARD_DONE_PENDING_TIMEOUT:
                    message = "KEYGUARD_DONE_PENDING_TIMEOUT";
                    Trace.beginSection("KeyguardViewMediator#handleMessage"
                            + " KEYGUARD_DONE_PENDING_TIMEOUT");
                    Log.w(TAG, "Timeout while waiting for activity drawn!");
                    Trace.endSection();
                    break;
                case SYSTEM_READY:
                    message = "SYSTEM_READY";
                    handleSystemReady();
                    break;
            }
            Log.d(TAG, "KeyguardViewMediator queue processing message: " + message);
        }
    };

    private void tryKeyguardDone() {
        if (DEBUG) {
            Log.d(TAG, "tryKeyguardDone: pending - " + mKeyguardDonePending + ", animRan - "
                    + mHideAnimationRun + " animRunning - " + mHideAnimationRunning);
        }
        if (!mKeyguardDonePending && mHideAnimationRun && !mHideAnimationRunning) {
            handleKeyguardDone();
        } else if (mSurfaceBehindRemoteAnimationRunning) {
            // We're already running the keyguard exit animation, likely due to an in-progress swipe
            // to unlock.
            exitKeyguardAndFinishSurfaceBehindRemoteAnimation(false /* showKeyguard */);
        } else if (!mHideAnimationRun) {
            if (DEBUG) Log.d(TAG, "tryKeyguardDone: starting pre-hide animation");
            mHideAnimationRun = true;
            mHideAnimationRunning = true;
            mKeyguardViewControllerLazy.get()
                    .startPreHideAnimation(mHideAnimationFinishedRunnable);
        }
    }

    /**
     * @see #keyguardDone
     * @see #KEYGUARD_DONE
     */
    private void handleKeyguardDone() {
        Trace.beginSection("KeyguardViewMediator#handleKeyguardDone");
        final int currentUser = KeyguardUpdateMonitor.getCurrentUser();
        mUiBgExecutor.execute(() -> {
            if (mLockPatternUtils.isSecure(currentUser)) {
                mLockPatternUtils.getDevicePolicyManager().reportKeyguardDismissed(currentUser);
            }
        });
        if (DEBUG) Log.d(TAG, "handleKeyguardDone");
        synchronized (this) {
            resetKeyguardDonePendingLocked();
        }

        if (mGoingToSleep) {
            mUpdateMonitor.clearBiometricRecognizedWhenKeyguardDone(currentUser);
            Log.i(TAG, "Device is going to sleep, aborting keyguardDone");
            return;
        }
        setPendingLock(false); // user may have authenticated during the screen off animation

        handleHide();
        mUpdateMonitor.clearBiometricRecognizedWhenKeyguardDone(currentUser);
        Trace.endSection();
    }

    private void sendUserPresentBroadcast() {
        synchronized (this) {
            if (mBootCompleted) {
                int currentUserId = KeyguardUpdateMonitor.getCurrentUser();
                final UserHandle currentUser = new UserHandle(currentUserId);
                final UserManager um = (UserManager) mContext.getSystemService(
                        Context.USER_SERVICE);
                mUiBgExecutor.execute(() -> {
                    for (int profileId : um.getProfileIdsWithDisabled(currentUser.getIdentifier())) {
                        mContext.sendBroadcastAsUser(USER_PRESENT_INTENT,
                                UserHandle.of(profileId),
                                null,
                                USER_PRESENT_INTENT_OPTIONS);
                    }
                    mLockPatternUtils.userPresent(currentUserId);
                });
            } else {
                mBootSendUserPresent = true;
            }
        }
    }

    /**
     * @see #keyguardDone
     * @see #KEYGUARD_DONE_DRAWING
     */
    private void handleKeyguardDoneDrawing() {
        Trace.beginSection("KeyguardViewMediator#handleKeyguardDoneDrawing");
        synchronized(this) {
            if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing");
            if (mWaitingUntilKeyguardVisible) {
                if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing: notifying mWaitingUntilKeyguardVisible");
                mWaitingUntilKeyguardVisible = false;
                notifyAll();

                // there will usually be two of these sent, one as a timeout, and one
                // as a result of the callback, so remove any remaining messages from
                // the queue
                mHandler.removeMessages(KEYGUARD_DONE_DRAWING);
            }
        }
        Trace.endSection();
    }

    private void playSounds(boolean locked) {
        playSound(locked ? mLockSoundId : mUnlockSoundId);
    }

    private void playSound(int soundId) {
        if (soundId == 0) return;
        int lockscreenSoundsEnabled = mSystemSettings.getIntForUser(LOCKSCREEN_SOUNDS_ENABLED, 1,
                KeyguardUpdateMonitor.getCurrentUser());
        if (lockscreenSoundsEnabled == 1) {

            mLockSounds.stop(mLockSoundStreamId);
            // Init mAudioManager
            if (mAudioManager == null) {
                mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
                if (mAudioManager == null) return;
                mUiSoundsStreamType = mAudioManager.getUiSoundsStreamType();
            }

            mUiBgExecutor.execute(() -> {
                // If the stream is muted, don't play the sound
                if (mAudioManager.isStreamMute(mUiSoundsStreamType)) return;

                int id = mLockSounds.play(soundId,
                        mLockSoundVolume, mLockSoundVolume, 1/*priority*/, 0/*loop*/, 1.0f/*rate*/);
                synchronized (this) {
                    mLockSoundStreamId = id;
                }
            });

        }
    }

    private void playTrustedSound() {
        playSound(mTrustedSoundId);
    }

    private void updateActivityLockScreenState(boolean showing, boolean aodShowing) {
        mUiBgExecutor.execute(() -> {
            if (DEBUG) {
                Log.d(TAG, "updateActivityLockScreenState(" + showing + ", " + aodShowing + ")");
            }

            if (mFeatureFlags.isEnabled(Flags.KEYGUARD_WM_STATE_REFACTOR)) {
                // Handled in WmLockscreenVisibilityManager if flag is enabled.
                return;
            }

            try {
                ActivityTaskManager.getService().setLockScreenShown(showing, aodShowing);
            } catch (RemoteException e) {
            }
        });
    }

    /**
     * Handle message sent by {@link #showLocked}.
     * @see #SHOW
     */
    private void handleShow(Bundle options) {
        Trace.beginSection("KeyguardViewMediator#handleShow");
        final int currentUser = KeyguardUpdateMonitor.getCurrentUser();
        if (mLockPatternUtils.isSecure(currentUser)) {
            mLockPatternUtils.getDevicePolicyManager().reportKeyguardSecured(currentUser);
        }
        synchronized (KeyguardViewMediator.this) {
            if (!mSystemReady) {
                if (DEBUG) Log.d(TAG, "ignoring handleShow because system is not ready.");
                return;
            } else {
                if (DEBUG) Log.d(TAG, "handleShow");
            }

            mKeyguardExitAnimationRunner = null;
            mWakeAndUnlocking = false;
            setUnlockAndWakeFromDream(false, WakeAndUnlockUpdateReason.SHOW);
            setPendingLock(false);

            final boolean hidingOrGoingAway =
                    mHiding || mKeyguardStateController.isKeyguardGoingAway();
            if (hidingOrGoingAway) {
                Log.d(TAG, "Forcing setShowingLocked because one of these is true:"
                        + "mHiding=" + mHiding
                        + ", keyguardGoingAway=" + mKeyguardStateController.isKeyguardGoingAway()
                        + ", which means we're showing in the middle of hiding.");
            }

            // Force if we we're showing in the middle of unlocking, to ensure we end up in the
            // correct state.
            setShowingLocked(true, hidingOrGoingAway /* force */);
            mHiding = false;

            if (!mFeatureFlags.isEnabled(Flags.KEYGUARD_WM_STATE_REFACTOR)) {
                // Handled directly in StatusBarKeyguardViewManager if enabled.
                mKeyguardViewControllerLazy.get().show(options);
            }

            resetKeyguardDonePendingLocked();
            mHideAnimationRun = false;
            adjustStatusBarLocked();
            userActivity();
            mUpdateMonitor.setKeyguardGoingAway(false);
            mKeyguardViewControllerLazy.get().setKeyguardGoingAwayState(false);
            mShowKeyguardWakeLock.release();
        }
        mKeyguardDisplayManager.show();

        scheduleNonStrongBiometricIdleTimeout();

        Trace.endSection();
    }

    /**
     * Schedule 4-hour idle timeout for non-strong biometrics when the device is locked
     */
    private void scheduleNonStrongBiometricIdleTimeout() {
        final int currentUser = KeyguardUpdateMonitor.getCurrentUser();
        // If unlocking with non-strong (i.e. weak or convenience) biometrics is possible, schedule
        // 4hr idle timeout after which non-strong biometrics can't be used to unlock device until
        // unlocking with strong biometric or primary auth (i.e. PIN/pattern/password)
        if (mUpdateMonitor.isUnlockingWithNonStrongBiometricsPossible(currentUser)) {
            if (DEBUG) {
                Log.d(TAG, "scheduleNonStrongBiometricIdleTimeout: schedule an alarm for "
                        + "currentUser=" + currentUser);
            }
            mLockPatternUtils.scheduleNonStrongBiometricIdleTimeout(currentUser);
        }
    }

    private final Runnable mKeyguardGoingAwayRunnable = new Runnable() {
        @Override
        public void run() {
            Trace.beginSection("KeyguardViewMediator.mKeyGuardGoingAwayRunnable");
            if (DEBUG) Log.d(TAG, "keyguardGoingAway");
            mKeyguardViewControllerLazy.get().keyguardGoingAway();

            int flags = 0;
            if (mKeyguardViewControllerLazy.get().shouldDisableWindowAnimationsForUnlock()
                    || mWakeAndUnlocking && !mWallpaperSupportsAmbientMode) {
                flags |= KEYGUARD_GOING_AWAY_FLAG_NO_WINDOW_ANIMATIONS;
            }
            if (mKeyguardViewControllerLazy.get().isGoingToNotificationShade()
                    || mWakeAndUnlocking && mWallpaperSupportsAmbientMode) {
                // When the wallpaper supports ambient mode, the scrim isn't fully opaque during
                // wake and unlock, and we should fade in the app on top of the wallpaper
                flags |= WindowManagerPolicyConstants.KEYGUARD_GOING_AWAY_FLAG_TO_SHADE;
            }
            if (mKeyguardViewControllerLazy.get().isUnlockWithWallpaper()) {
                flags |= KEYGUARD_GOING_AWAY_FLAG_WITH_WALLPAPER;
            }
            if (mKeyguardViewControllerLazy.get().shouldSubtleWindowAnimationsForUnlock()) {
                flags |= WindowManagerPolicyConstants
                        .KEYGUARD_GOING_AWAY_FLAG_SUBTLE_WINDOW_ANIMATIONS;
            }

            // If we are unlocking to the launcher, clear the snapshot so that any changes as part
            // of the in-window animations are reflected. This is needed even if we're not actually
            // playing in-window animations for this particular unlock since a previous unlock might
            // have changed the Launcher state.
            if (mWakeAndUnlocking
                    && KeyguardUnlockAnimationController.Companion.isNexusLauncherUnderneath()) {
                flags |= KEYGUARD_GOING_AWAY_FLAG_TO_LAUNCHER_CLEAR_SNAPSHOT;
            }

            mUpdateMonitor.setKeyguardGoingAway(true);
            mKeyguardViewControllerLazy.get().setKeyguardGoingAwayState(true);

            // Handled in WmLockscreenVisibilityManager if flag is enabled.
            if (!mFeatureFlags.isEnabled(Flags.KEYGUARD_WM_STATE_REFACTOR)) {
                // Don't actually hide the Keyguard at the moment, wait for window manager until it
                // tells us it's safe to do so with startKeyguardExitAnimation.
                // Posting to mUiOffloadThread to ensure that calls to ActivityTaskManager will be
                // in order.
                final int keyguardFlag = flags;
                mUiBgExecutor.execute(() -> {
                    try {
                        ActivityTaskManager.getService().keyguardGoingAway(keyguardFlag);
                    } catch (RemoteException e) {
                        Log.e(TAG, "Error while calling WindowManager", e);
                    }
                });
            }

            Trace.endSection();
        }
    };

    private final Runnable mHideAnimationFinishedRunnable = () -> {
        Log.e(TAG, "mHideAnimationFinishedRunnable#run");
        mHideAnimationRunning = false;
        tryKeyguardDone();
    };

    private void setUnlockAndWakeFromDream(boolean updatedValue,
            @WakeAndUnlockUpdateReason int reason) {
        if (!mOrderUnlockAndWake) {
            return;
        }

        if (updatedValue == mUnlockingAndWakingFromDream) {
            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 boolean unsetUnfulfilled = !updatedValue
                && reason != WakeAndUnlockUpdateReason.FULFILL;

        mUnlockingAndWakingFromDream = updatedValue;

        final String description;

        if (unsetUnfulfilled) {
            description = "Interrupting request to wake and unlock";
        } else if (mUnlockingAndWakingFromDream) {
            description = "Initiating request to wake and unlock";
        } else {
            description = "Fulfilling request to wake and unlock";
        }

        Log.d(TAG, String.format(
                "Updating waking and unlocking request to %b. description:[%s]. reason:[%s]",
                mUnlockingAndWakingFromDream,  description, reasonDescription));
    }

    /**
     * Handle message sent by {@link #hideLocked()}
     * @see #HIDE
     */
    private void handleHide() {
        Trace.beginSection("KeyguardViewMediator#handleHide");

        // It's possible that the device was unlocked (via BOUNCER) while dozing. It's time to
        // wake up.
        if (mAodShowing) {
            mPM.wakeUp(mSystemClock.uptimeMillis(), PowerManager.WAKE_REASON_GESTURE,
                    "com.android.systemui:BOUNCER_DOZING");
        }

        synchronized (KeyguardViewMediator.this) {
            if (DEBUG) Log.d(TAG, "handleHide");

            mHiding = true;

            // If waking and unlocking, waking from dream has been set properly.
            if (!mWakeAndUnlocking) {
                setUnlockAndWakeFromDream(mStatusBarStateController.isDreaming()
                        && mPM.isInteractive(), WakeAndUnlockUpdateReason.HIDE);
            }

            if ((mShowing && !mOccluded) || mUnlockingAndWakingFromDream) {
                if (mUnlockingAndWakingFromDream) {
                    Log.d(TAG, "hiding keyguard before waking from dream");
                }
                mKeyguardGoingAwayRunnable.run();
            } else {
                // TODO(bc-unlock): Fill parameters
                mNotificationShadeWindowControllerLazy.get().batchApplyWindowLayoutParams(() -> {
                    handleStartKeyguardExitAnimation(
                            mSystemClock.uptimeMillis() + mHideAnimation.getStartOffset(),
                            mHideAnimation.getDuration(), null /* apps */, null /* wallpapers */,
                            null /* nonApps */, null /* finishedCallback */);
                });
            }

            // It's possible that the device was unlocked (via BOUNCER or Fingerprint) while
            // dreaming. It's time to wake up.
            if ((mDreamOverlayShowing || mUpdateMonitor.isDreaming()) && !mOrderUnlockAndWake) {
                mPM.wakeUp(mSystemClock.uptimeMillis(), PowerManager.WAKE_REASON_GESTURE,
                        "com.android.systemui:UNLOCK_DREAMING");
            }
        }
        Trace.endSection();
    }

    private void handleStartKeyguardExitAnimation(long startTime, long fadeoutDuration,
            RemoteAnimationTarget[] apps, RemoteAnimationTarget[] wallpapers,
            RemoteAnimationTarget[] nonApps, IRemoteAnimationFinishedCallback finishedCallback) {
        Trace.beginSection("KeyguardViewMediator#handleStartKeyguardExitAnimation");
        Log.d(TAG, "handleStartKeyguardExitAnimation startTime=" + startTime
                + " fadeoutDuration=" + fadeoutDuration);
        synchronized (KeyguardViewMediator.this) {
            // Tell ActivityManager that we canceled the keyguard animation if
            // handleStartKeyguardExitAnimation was called, but we're not hiding the keyguard,
            // unless we're animating the surface behind the keyguard and will be hiding the
            // keyguard shortly.
            if (!mHiding
                    && !mSurfaceBehindRemoteAnimationRequested
                    && !mKeyguardStateController.isFlingingToDismissKeyguardDuringSwipeGesture()) {
                // If the flag is enabled, remote animation state is handled in
                // WmLockscreenVisibilityManager.
                if (finishedCallback != null
                        && !mFeatureFlags.isEnabled(Flags.KEYGUARD_WM_STATE_REFACTOR)) {
                    // There will not execute animation, send a finish callback to ensure the remote
                    // animation won't hang there.
                    try {
                        finishedCallback.onAnimationFinished();
                    } catch (RemoteException e) {
                        Slog.w(TAG, "Failed to call onAnimationFinished", e);
                    }
                }
                setShowingLocked(mShowing, true /* force */);
                return;
            }
            mHiding = false;
            IRemoteAnimationRunner runner = mKeyguardExitAnimationRunner;
            mKeyguardExitAnimationRunner = null;

            LatencyTracker.getInstance(mContext)
                    .onActionEnd(LatencyTracker.ACTION_LOCKSCREEN_UNLOCK);

            if (runner != null
                    && finishedCallback != null) {
                // Wrap finishedCallback to clean up the keyguard state once the animation is done.
                IRemoteAnimationFinishedCallback callback =
                        new IRemoteAnimationFinishedCallback() {
                            @Override
                            public void onAnimationFinished() throws RemoteException {
                                if (!mFeatureFlags.isEnabled(Flags.KEYGUARD_WM_STATE_REFACTOR)) {
                                    try {
                                        finishedCallback.onAnimationFinished();
                                    } catch (RemoteException e) {
                                        Slog.w(TAG, "Failed to call onAnimationFinished", e);
                                    }
                                }
                                onKeyguardExitFinished();
                                mKeyguardViewControllerLazy.get().hide(0 /* startTime */,
                                        0 /* fadeoutDuration */);
                                mInteractionJankMonitor.end(CUJ_LOCKSCREEN_UNLOCK_ANIMATION);
                            }

                            @Override
                            public IBinder asBinder() {
                                return finishedCallback.asBinder();
                            }
                        };
                try {
                    mInteractionJankMonitor.begin(
                            createInteractionJankMonitorConf(
                                    CUJ_LOCKSCREEN_UNLOCK_ANIMATION, "RunRemoteAnimation"));
                    runner.onAnimationStart(WindowManager.TRANSIT_KEYGUARD_GOING_AWAY, apps,
                            wallpapers, nonApps, callback);
                } catch (RemoteException e) {
                    Slog.w(TAG, "Failed to call onAnimationStart", e);
                }

            // When remaining on the shade, there's no need to do a fancy remote animation,
            // it will dismiss the panel in that case.
            } else if (!mStatusBarStateController.leaveOpenOnKeyguardHide()
                    && apps != null && apps.length > 0) {
                if (!mFeatureFlags.isEnabled(Flags.KEYGUARD_WM_STATE_REFACTOR)) {
                    // Handled in WmLockscreenVisibilityManager. Other logic in this class will
                    // short circuit when this is null.
                    mSurfaceBehindRemoteAnimationFinishedCallback = finishedCallback;
                }
                mSurfaceBehindRemoteAnimationRunning = true;

                mInteractionJankMonitor.begin(
                        createInteractionJankMonitorConf(
                                CUJ_LOCKSCREEN_UNLOCK_ANIMATION, "DismissPanel"));

                // Pass the surface and metadata to the unlock animation controller.
                RemoteAnimationTarget[] openingWallpapers = Arrays.stream(wallpapers).filter(
                        w -> w.mode == RemoteAnimationTarget.MODE_OPENING).toArray(
                        RemoteAnimationTarget[]::new);
                mKeyguardUnlockAnimationControllerLazy.get()
                        .notifyStartSurfaceBehindRemoteAnimation(
                                apps, openingWallpapers, startTime,
                                mSurfaceBehindRemoteAnimationRequested);
            } else {
                mInteractionJankMonitor.begin(
                        createInteractionJankMonitorConf(
                                CUJ_LOCKSCREEN_UNLOCK_ANIMATION, "RemoteAnimationDisabled"));

                if (!mFeatureFlags.isEnabled(Flags.KEYGUARD_WM_STATE_REFACTOR)) {
                    // Handled directly in StatusBarKeyguardViewManager if enabled.
                    mKeyguardViewControllerLazy.get().hide(startTime, fadeoutDuration);
                }

                // TODO(bc-animation): When remote animation is enabled for keyguard exit animation,
                // apps, wallpapers and finishedCallback are set to non-null. nonApps is not yet
                // supported, so it's always null.
                mContext.getMainExecutor().execute(() -> {
                    if (finishedCallback == null) {
                        mKeyguardUnlockAnimationControllerLazy.get()
                                .notifyFinishedKeyguardExitAnimation(false /* showKeyguard */);
                        mInteractionJankMonitor.end(CUJ_LOCKSCREEN_UNLOCK_ANIMATION);
                        return;
                    }
                    if (apps == null || apps.length == 0) {
                        Slog.e(TAG, "Keyguard exit without a corresponding app to show.");

                        try {
                            if (!mFeatureFlags.isEnabled(Flags.KEYGUARD_WM_STATE_REFACTOR)) {
                                finishedCallback.onAnimationFinished();
                            }
                        } catch (RemoteException e) {
                            Slog.e(TAG, "RemoteException");
                        } finally {
                            mInteractionJankMonitor.end(CUJ_LOCKSCREEN_UNLOCK_ANIMATION);
                        }

                        return;
                    }

                    // TODO(bc-unlock): Sample animation, just to apply alpha animation on the app.
                    final SyncRtSurfaceTransactionApplier applier =
                            new SyncRtSurfaceTransactionApplier(
                                    mKeyguardViewControllerLazy.get().getViewRootImpl().getView());
                    final RemoteAnimationTarget primary = apps[0];
                    ValueAnimator anim = ValueAnimator.ofFloat(0, 1);
                    anim.setDuration(400 /* duration */);
                    anim.setInterpolator(Interpolators.LINEAR);
                    anim.addUpdateListener((ValueAnimator animation) -> {
                        SyncRtSurfaceTransactionApplier.SurfaceParams params =
                                new SyncRtSurfaceTransactionApplier.SurfaceParams.Builder(
                                        primary.leash)
                                        .withAlpha(animation.getAnimatedFraction())
                                        .build();
                        applier.scheduleApply(params);
                    });
                    anim.addListener(new AnimatorListenerAdapter() {
                        @Override
                        public void onAnimationEnd(Animator animation) {
                            try {
                                if (!mFeatureFlags.isEnabled(Flags.KEYGUARD_WM_STATE_REFACTOR)) {
                                    finishedCallback.onAnimationFinished();
                                }
                            } catch (RemoteException e) {
                                Slog.e(TAG, "RemoteException");
                            } finally {
                                mInteractionJankMonitor.end(CUJ_LOCKSCREEN_UNLOCK_ANIMATION);
                            }
                        }

                        @Override
                        public void onAnimationCancel(Animator animation) {
                            try {
                                if (!mFeatureFlags.isEnabled(Flags.KEYGUARD_WM_STATE_REFACTOR)) {
                                    finishedCallback.onAnimationFinished();
                                }
                            } catch (RemoteException e) {
                                Slog.e(TAG, "RemoteException");
                            } finally {
                                mInteractionJankMonitor.cancel(CUJ_LOCKSCREEN_UNLOCK_ANIMATION);
                            }
                        }
                    });
                    anim.start();
                });

                onKeyguardExitFinished();
            }
        }

        Trace.endSection();
    }

    private void onKeyguardExitFinished() {
        if (DEBUG) Log.d(TAG, "onKeyguardExitFinished()");
        // only play "unlock" noises if not on a call (since the incall UI
        // disables the keyguard)
        if (TelephonyManager.EXTRA_STATE_IDLE.equals(mPhoneState)) {
            playSounds(false);
        }

        setShowingLocked(false);
        mWakeAndUnlocking = false;
        mDismissCallbackRegistry.notifyDismissSucceeded();
        resetKeyguardDonePendingLocked();
        mHideAnimationRun = false;
        adjustStatusBarLocked();
        sendUserPresentBroadcast();
    }

    private Configuration.Builder createInteractionJankMonitorConf(int cuj) {
        return createInteractionJankMonitorConf(cuj, null /* tag */);
    }

    private Configuration.Builder createInteractionJankMonitorConf(int cuj, @Nullable String tag) {
        final Configuration.Builder builder = Configuration.Builder.withView(
                cuj, mKeyguardViewControllerLazy.get().getViewRootImpl().getView());

        return tag != null ? builder.setTag(tag) : builder;
    }

    /**
     * Whether we're currently animating between the keyguard and the app/launcher surface behind
     * it, or will be shortly (which happens if we started a fling to dismiss the keyguard).
     */
    public boolean isAnimatingBetweenKeyguardAndSurfaceBehindOrWillBe() {
        return mSurfaceBehindRemoteAnimationRunning
                || mKeyguardStateController.isFlingingToDismissKeyguard();
    }

    /**
     * Called if the keyguard exit animation has been cancelled.
     *
     * This can happen due to the system cancelling the RemoteAnimation (due to a timeout, a new
     * app transition before finishing the current RemoteAnimation, or the keyguard being re-shown).
     */
    private void handleCancelKeyguardExitAnimation() {
        if (mPendingLock) {
            Log.d(TAG, "#handleCancelKeyguardExitAnimation: keyguard exit animation cancelled. "
                    + "There's a pending lock, so we were cancelled because the device was locked "
                    + "again during the unlock sequence. We should end up locked.");

            // A lock is pending, meaning the keyguard exit animation was cancelled because we're
            // re-locking. We should just end the surface-behind animation without exiting the
            // keyguard. The pending lock will be handled by onFinishedGoingToSleep().
            finishSurfaceBehindRemoteAnimation(true /* showKeyguard */);
            maybeHandlePendingLock();
        } else {
            Log.d(TAG, "#handleCancelKeyguardExitAnimation: keyguard exit animation cancelled. "
                    + "No pending lock, we should end up unlocked with the app/launcher visible.");

            // No lock is pending, so the animation was cancelled during the unlock sequence, but
            // we should end up unlocked. Show the surface and exit the keyguard.
            showSurfaceBehindKeyguard();
            exitKeyguardAndFinishSurfaceBehindRemoteAnimation(false /* showKeyguard */);
        }
    }

    /**
     * Called when we're done running the keyguard exit animation, we should now end up unlocked.
     *
     * This will call {@link #handleCancelKeyguardExitAnimation()} to let WM know that we're done
     * with the RemoteAnimation, actually hide the keyguard, and clean up state related to the
     * keyguard exit animation.
     *
     * @param showKeyguard {@code true} if the animation was cancelled and keyguard should remain
     *                        visible
     */
    public void exitKeyguardAndFinishSurfaceBehindRemoteAnimation(boolean showKeyguard) {
        Log.d(TAG, "exitKeyguardAndFinishSurfaceBehindRemoteAnimation");
        if (!mSurfaceBehindRemoteAnimationRunning && !mSurfaceBehindRemoteAnimationRequested) {
            Log.d(TAG, "skip onKeyguardExitRemoteAnimationFinished showKeyguard=" + showKeyguard
                    + " surfaceAnimationRunning=" + mSurfaceBehindRemoteAnimationRunning
                    + " surfaceAnimationRequested=" + mSurfaceBehindRemoteAnimationRequested);
            return;
        }

        // Block the panel from expanding, in case we were doing a swipe to dismiss gesture.
        mKeyguardViewControllerLazy.get().blockPanelExpansionFromCurrentTouch();
        final boolean wasShowing = mShowing;
        InteractionJankMonitor.getInstance().end(CUJ_LOCKSCREEN_UNLOCK_ANIMATION);

        // Post layout changes to the next frame, so we don't hang at the end of the animation.
        DejankUtils.postAfterTraversal(() -> {
            if (!mPM.isInteractive() && !mPendingLock) {
                Log.e(TAG, "exitKeyguardAndFinishSurfaceBehindRemoteAnimation#postAfterTraversal:"
                        + "mPM.isInteractive()=" + mPM.isInteractive()
                        + "mPendingLock=" + mPendingLock + "."
                        + "One of these being false means we re-locked the device during unlock. "
                        + "Do not proceed to finish keyguard exit and unlock.");
                doKeyguardLocked(null);
                finishSurfaceBehindRemoteAnimation(true /* showKeyguard */);
                // Ensure WM is notified that we made a decision to show
                setShowingLocked(true /* showing */, true /* force */);

                return;
            }

            onKeyguardExitFinished();

            if (mKeyguardStateController.isDismissingFromSwipe() || wasShowing) {
                Log.d(TAG, "onKeyguardExitRemoteAnimationFinished"
                        + "#hideKeyguardViewAfterRemoteAnimation");
                mKeyguardUnlockAnimationControllerLazy.get().hideKeyguardViewAfterRemoteAnimation();
            } else {
                Log.d(TAG, "skip hideKeyguardViewAfterRemoteAnimation"
                        + " dismissFromSwipe=" + mKeyguardStateController.isDismissingFromSwipe()
                        + " wasShowing=" + wasShowing);
            }

            finishSurfaceBehindRemoteAnimation(showKeyguard);

            // Dispatch the callback on animation finishes.
            mUpdateMonitor.dispatchKeyguardDismissAnimationFinished();
        });

    }

    /**
     * Tells the ActivityTaskManager that the keyguard is planning to go away, so that it makes the
     * surface behind the keyguard visible and calls {@link #handleStartKeyguardExitAnimation} with
     * the parameters needed to animate the surface.
     */
    public void showSurfaceBehindKeyguard() {
        mSurfaceBehindRemoteAnimationRequested = true;

        try {
            int flags = KEYGUARD_GOING_AWAY_FLAG_NO_WINDOW_ANIMATIONS
                    | KEYGUARD_GOING_AWAY_FLAG_WITH_WALLPAPER;

            // If we are unlocking to the launcher, clear the snapshot so that any changes as part
            // of the in-window animations are reflected. This is needed even if we're not actually
            // playing in-window animations for this particular unlock since a previous unlock might
            // have changed the Launcher state.
            if (KeyguardUnlockAnimationController.Companion.isNexusLauncherUnderneath()) {
                flags |= KEYGUARD_GOING_AWAY_FLAG_TO_LAUNCHER_CLEAR_SNAPSHOT;
            }

            if (!mFeatureFlags.isEnabled(Flags.KEYGUARD_WM_STATE_REFACTOR)) {
                // Handled in WmLockscreenVisibilityManager.
                ActivityTaskManager.getService().keyguardGoingAway(flags);
            }
            mKeyguardStateController.notifyKeyguardGoingAway(true);
        } catch (RemoteException e) {
            mSurfaceBehindRemoteAnimationRequested = false;
            e.printStackTrace();
        }
    }

    /** Hides the surface behind the keyguard by re-showing the keyguard/activity lock screen. */
    public void hideSurfaceBehindKeyguard() {
        mSurfaceBehindRemoteAnimationRequested = false;
        mKeyguardStateController.notifyKeyguardGoingAway(false);
        if (mShowing) {
            setShowingLocked(true, true);
        }
    }

    /**
     * Whether we have requested to show the surface behind the keyguard, even if it's not yet
     * visible due to IPC delay.
     */
    public boolean requestedShowSurfaceBehindKeyguard() {
        return mSurfaceBehindRemoteAnimationRequested;
    }

    public boolean isAnimatingBetweenKeyguardAndSurfaceBehind() {
        return mSurfaceBehindRemoteAnimationRunning;
    }

    /**
     * If it's running, finishes the RemoteAnimation on the surface behind the keyguard and resets
     * related state.
     *
     * This does not set keyguard state to either locked or unlocked, it simply ends the remote
     * animation on the surface behind the keyguard. This can be called by
     */
    void finishSurfaceBehindRemoteAnimation(boolean showKeyguard) {
        mKeyguardUnlockAnimationControllerLazy.get()
                .notifyFinishedKeyguardExitAnimation(showKeyguard);

        mSurfaceBehindRemoteAnimationRequested = false;
        mSurfaceBehindRemoteAnimationRunning = false;
        mKeyguardStateController.notifyKeyguardGoingAway(false);

        if (mSurfaceBehindRemoteAnimationFinishedCallback != null) {
            try {
                mSurfaceBehindRemoteAnimationFinishedCallback.onAnimationFinished();
            } catch (Throwable t) {
                // The surface may no longer be available. Just capture the exception
                Log.w(TAG, "Surface behind remote animation callback failed, and it's probably ok: "
                        + t.getMessage());
            } finally {
                mSurfaceBehindRemoteAnimationFinishedCallback = null;
            }
        }
    }

    private void adjustStatusBarLocked() {
        adjustStatusBarLocked(false /* forceHideHomeRecentsButtons */,
                false /* forceClearFlags */);
    }

    private void adjustStatusBarLocked(boolean forceHideHomeRecentsButtons,
            boolean forceClearFlags) {
        if (mStatusBarManager == null) {
            mStatusBarManager = (StatusBarManager)
                    mContext.getSystemService(Context.STATUS_BAR_SERVICE);
        }

        if (mStatusBarManager == null) {
            Log.w(TAG, "Could not get status bar manager");
        } else {
            // Disable aspects of the system/status/navigation bars that must not be re-enabled by
            // windows that appear on top, ever
            int flags = StatusBarManager.DISABLE_NONE;

            // TODO (b/155663717) After restart, status bar will not properly hide home button
            //  unless disable is called to show un-hide it once first
            if (forceClearFlags) {
                try {
                    mStatusBarService.disableForUser(flags, mStatusBarDisableToken,
                            mContext.getPackageName(), mUserTracker.getUserId());
                } catch (RemoteException e) {
                    Log.d(TAG, "Failed to force clear flags", e);
                }
            }

            if (forceHideHomeRecentsButtons || isShowingAndNotOccluded()) {
                if (!mShowHomeOverLockscreen || !mInGestureNavigationMode) {
                    flags |= StatusBarManager.DISABLE_HOME;
                }
                flags |= StatusBarManager.DISABLE_RECENT;
            }

            if (mPowerGestureIntercepted && mOccluded && isSecure()
                    && mUpdateMonitor.isFaceEnrolled()) {
                flags |= StatusBarManager.DISABLE_RECENT;
            }

            if (DEBUG) {
                Log.d(TAG, "adjustStatusBarLocked: mShowing=" + mShowing + " mOccluded=" + mOccluded
                        + " isSecure=" + isSecure() + " force=" + forceHideHomeRecentsButtons
                        + " mPowerGestureIntercepted=" + mPowerGestureIntercepted
                        +  " --> flags=0x" + Integer.toHexString(flags));
            }

            try {
                mStatusBarService.disableForUser(flags, mStatusBarDisableToken,
                        mContext.getPackageName(), mUserTracker.getUserId());
            } catch (RemoteException e) {
                Log.d(TAG, "Failed to set disable flags: " + flags, e);
            }
        }
    }

    /**
     * Handle message sent by {@link #resetStateLocked}
     * @see #RESET
     */
    private void handleReset(boolean hideBouncer) {
        synchronized (KeyguardViewMediator.this) {
            if (DEBUG) Log.d(TAG, "handleReset");
            mKeyguardViewControllerLazy.get().reset(hideBouncer);
        }

        scheduleNonStrongBiometricIdleTimeout();
    }

    /**
     * Handle message sent by {@link #verifyUnlock}
     * @see #VERIFY_UNLOCK
     */
    private void handleVerifyUnlock() {
        Trace.beginSection("KeyguardViewMediator#handleVerifyUnlock");
        synchronized (KeyguardViewMediator.this) {
            if (DEBUG) Log.d(TAG, "handleVerifyUnlock");
            setShowingLocked(true);
            mKeyguardViewControllerLazy.get().dismissAndCollapse();
        }
        Trace.endSection();
    }

    private void handleNotifyStartedGoingToSleep() {
        synchronized (KeyguardViewMediator.this) {
            if (DEBUG) Log.d(TAG, "handleNotifyStartedGoingToSleep");
            mKeyguardViewControllerLazy.get().onStartedGoingToSleep();
        }
    }

    /**
     * Handle message sent by {@link #notifyFinishedGoingToSleep()}
     * @see #NOTIFY_FINISHED_GOING_TO_SLEEP
     */
    private void handleNotifyFinishedGoingToSleep() {
        synchronized (KeyguardViewMediator.this) {
            if (DEBUG) Log.d(TAG, "handleNotifyFinishedGoingToSleep");
            mKeyguardViewControllerLazy.get().onFinishedGoingToSleep();
        }
    }

    private void handleNotifyStartedWakingUp() {
        Trace.beginSection("KeyguardViewMediator#handleMotifyStartedWakingUp");
        synchronized (KeyguardViewMediator.this) {
            if (DEBUG) Log.d(TAG, "handleNotifyWakingUp");
            mKeyguardViewControllerLazy.get().onStartedWakingUp();
        }
        Trace.endSection();
    }

    private void resetKeyguardDonePendingLocked() {
        mKeyguardDonePending = false;
        mHandler.removeMessages(KEYGUARD_DONE_PENDING_TIMEOUT);
    }

    @Override
    public void onBootCompleted() {
        synchronized (this) {
            if (mContext.getResources().getBoolean(
                    com.android.internal.R.bool.config_guestUserAutoCreated)) {
                // TODO(b/191067027): Move post-boot guest creation to system_server
                mUserSwitcherController.schedulePostBootGuestCreation();
            }
            mBootCompleted = true;
            adjustStatusBarLocked(false, true);
            if (mBootSendUserPresent) {
                sendUserPresentBroadcast();
            }
        }
    }

    /**
     * Informs the keyguard view mediator that the device is waking and unlocking.
     * @param fromDream Whether waking and unlocking is happening over an interactive dream.
     */
    public void onWakeAndUnlocking(boolean fromDream) {
        Trace.beginSection("KeyguardViewMediator#onWakeAndUnlocking");
        mWakeAndUnlocking = true;
        setUnlockAndWakeFromDream(fromDream, WakeAndUnlockUpdateReason.WAKE_AND_UNLOCK);

        mKeyguardViewControllerLazy.get().notifyKeyguardAuthenticated(/* primaryAuth */ false);
        userActivity();
        Trace.endSection();
    }

    /**
     * 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,
            ShadeViewController panelView,
            @Nullable ShadeExpansionStateManager shadeExpansionStateManager,
            BiometricUnlockController biometricUnlockController,
            View notificationContainer, KeyguardBypassController bypassController) {
        mCentralSurfaces = centralSurfaces;
        mKeyguardViewControllerLazy.get().registerCentralSurfaces(
                centralSurfaces,
                panelView,
                shadeExpansionStateManager,
                biometricUnlockController,
                notificationContainer,
                bypassController);
        return mKeyguardViewControllerLazy.get();
    }

    /**
     * Notifies to System UI that the activity behind has now been drawn, and it's safe to remove
     * the wallpaper and keyguard flag, and WindowManager has started running keyguard exit
     * animation.
     *
     * @param startTime the start time of the animation in uptime milliseconds. Deprecated.
     * @param fadeoutDuration the duration of the exit animation, in milliseconds Deprecated.
     * @deprecated Will be migrate to remote animation soon.
     */
    @Deprecated
    public void startKeyguardExitAnimation(long startTime, long fadeoutDuration) {
        startKeyguardExitAnimation(0, startTime, fadeoutDuration, null, null, null, null);
    }

    /**
     * Notifies to System UI that the activity behind has now been drawn, and it's safe to remove
     * the wallpaper and keyguard flag, and System UI should start running keyguard exit animation.
     *
     * @param apps The list of apps to animate.
     * @param wallpapers The list of wallpapers to animate.
     * @param nonApps The list of non-app windows such as Bubbles to animate.
     * @param finishedCallback The callback to invoke when the animation is finished.
     */
    public void startKeyguardExitAnimation(@WindowManager.TransitionOldType int transit,
            RemoteAnimationTarget[] apps,
            RemoteAnimationTarget[] wallpapers, RemoteAnimationTarget[] nonApps,
            IRemoteAnimationFinishedCallback finishedCallback) {
        startKeyguardExitAnimation(transit, 0, 0, apps, wallpapers, nonApps, finishedCallback);
    }

    /**
     * Notifies to System UI that the activity behind has now been drawn, and it's safe to remove
     * the wallpaper and keyguard flag, and start running keyguard exit animation.
     *
     * @param startTime the start time of the animation in uptime milliseconds. Deprecated.
     * @param fadeoutDuration the duration of the exit animation, in milliseconds Deprecated.
     * @param apps The list of apps to animate.
     * @param wallpapers The list of wallpapers to animate.
     * @param nonApps The list of non-app windows such as Bubbles to animate.
     * @param finishedCallback The callback to invoke when the animation is finished.
     */
    private void startKeyguardExitAnimation(@WindowManager.TransitionOldType int transit,
            long startTime, long fadeoutDuration,
            RemoteAnimationTarget[] apps, RemoteAnimationTarget[] wallpapers,
            RemoteAnimationTarget[] nonApps, IRemoteAnimationFinishedCallback finishedCallback) {
        Trace.beginSection("KeyguardViewMediator#startKeyguardExitAnimation");
        mInteractionJankMonitor.cancel(CUJ_LOCKSCREEN_TRANSITION_FROM_AOD);
        Message msg = mHandler.obtainMessage(START_KEYGUARD_EXIT_ANIM,
                new StartKeyguardExitAnimParams(transit, startTime, fadeoutDuration, apps,
                        wallpapers, nonApps, finishedCallback));
        mHandler.sendMessage(msg);
        Trace.endSection();
    }

    /**
     * Cancel the keyguard exit animation, usually because we were swiping to unlock but WM starts
     * a new remote animation before finishing the keyguard exit animation.
     */
    public void cancelKeyguardExitAnimation() {
        Trace.beginSection("KeyguardViewMediator#cancelKeyguardExitAnimation");
        Message msg = mHandler.obtainMessage(CANCEL_KEYGUARD_EXIT_ANIM);
        mHandler.sendMessage(msg);
        Trace.endSection();
    }

    public void onShortPowerPressedGoHome() {
        // do nothing
    }

    public void dismissKeyguardToLaunch(Intent intentToLaunch) {
        // do nothing
    }

    public void onSystemKeyPressed(int keycode) {
        // do nothing
    }

    public ViewMediatorCallback getViewMediatorCallback() {
        return mViewMediatorCallback;
    }

    @Override
    public void dump(PrintWriter pw, String[] args) {
        pw.print("  mSystemReady: "); pw.println(mSystemReady);
        pw.print("  mBootCompleted: "); pw.println(mBootCompleted);
        pw.print("  mBootSendUserPresent: "); pw.println(mBootSendUserPresent);
        pw.print("  mExternallyEnabled: "); pw.println(mExternallyEnabled);
        pw.print("  mShuttingDown: "); pw.println(mShuttingDown);
        pw.print("  mNeedToReshowWhenReenabled: "); pw.println(mNeedToReshowWhenReenabled);
        pw.print("  mShowing: "); pw.println(mShowing);
        pw.print("  mInputRestricted: "); pw.println(mInputRestricted);
        pw.print("  mOccluded: "); pw.println(mOccluded);
        pw.print("  mDelayedShowingSequence: "); pw.println(mDelayedShowingSequence);
        pw.print("  mDeviceInteractive: "); pw.println(mDeviceInteractive);
        pw.print("  mGoingToSleep: "); pw.println(mGoingToSleep);
        pw.print("  mHiding: "); pw.println(mHiding);
        pw.print("  mDozing: "); pw.println(mDozing);
        pw.print("  mAodShowing: "); pw.println(mAodShowing);
        pw.print("  mWaitingUntilKeyguardVisible: "); pw.println(mWaitingUntilKeyguardVisible);
        pw.print("  mKeyguardDonePending: "); pw.println(mKeyguardDonePending);
        pw.print("  mHideAnimationRun: "); pw.println(mHideAnimationRun);
        pw.print("  mPendingReset: "); pw.println(mPendingReset);
        pw.print("  mPendingLock: "); pw.println(mPendingLock);
        pw.print("  wakeAndUnlocking: "); pw.println(mWakeAndUnlocking);
        pw.print("  mPendingPinLock: "); pw.println(mPendingPinLock);
        pw.print("  mPowerGestureIntercepted: "); pw.println(mPowerGestureIntercepted);
    }

    /**
     * @param dozing true when AOD - or ambient mode - is showing.
     */
    public void setDozing(boolean dozing) {
        if (dozing == mDozing) {
            return;
        }
        mDozing = dozing;
        if (!dozing) {
            mAnimatingScreenOff = false;
        }

        // Don't hide the keyguard due to a doze change if there's a lock pending, because we're
        // just going to show it again.
        // If the device is not capable of controlling the screen off animation, SysUI needs to
        // update lock screen state in ATMS here, otherwise ATMS tries to resume activities when
        // enabling doze state.
        if (mShowing || !mPendingLock || !mDozeParameters.canControlUnlockedScreenOff()) {
            setShowingLocked(mShowing);
        }
    }

    @Override
    public void onDozeAmountChanged(float linear, float interpolated) {
        // If we were animating the screen off, and we've completed the doze animation (doze amount
        // is 1f), then show the activity lock screen.
        if (mAnimatingScreenOff && mDozing && linear == 1f) {
            mAnimatingScreenOff = false;
            setShowingLocked(mShowing, true);
        }
    }

    /**
     * Set if the wallpaper supports ambient mode. This is used to trigger the right animation.
     * In case it does support it, we have to fade in the incoming app, otherwise we'll reveal it
     * with the light reveal scrim.
     */
    private void setWallpaperSupportsAmbientMode(boolean supportsAmbientMode) {
        mWallpaperSupportsAmbientMode = supportsAmbientMode;
    }

    private static class StartKeyguardExitAnimParams {

        @WindowManager.TransitionOldType int mTransit;
        long startTime;
        long fadeoutDuration;
        RemoteAnimationTarget[] mApps;
        RemoteAnimationTarget[] mWallpapers;
        RemoteAnimationTarget[] mNonApps;
        IRemoteAnimationFinishedCallback mFinishedCallback;

        private StartKeyguardExitAnimParams(@WindowManager.TransitionOldType int transit,
                long startTime, long fadeoutDuration,
                RemoteAnimationTarget[] apps, RemoteAnimationTarget[] wallpapers,
                RemoteAnimationTarget[] nonApps,
                IRemoteAnimationFinishedCallback finishedCallback) {
            this.mTransit = transit;
            this.startTime = startTime;
            this.fadeoutDuration = fadeoutDuration;
            this.mApps = apps;
            this.mWallpapers = wallpapers;
            this.mNonApps = nonApps;
            this.mFinishedCallback = finishedCallback;
        }
    }

    void setShowingLocked(boolean showing) {
        setShowingLocked(showing, false /* forceCallbacks */);
    }

    private void setShowingLocked(boolean showing, boolean forceCallbacks) {
        final boolean aodShowing = mDozing && !mWakeAndUnlocking;
        final boolean notifyDefaultDisplayCallbacks = showing != mShowing || forceCallbacks;
        final boolean updateActivityLockScreenState = showing != mShowing
                || aodShowing != mAodShowing || forceCallbacks;
        mShowing = showing;
        mAodShowing = aodShowing;
        if (notifyDefaultDisplayCallbacks) {
            notifyDefaultDisplayCallbacks(showing);
        }
        if (updateActivityLockScreenState) {
            updateActivityLockScreenState(showing, aodShowing);
        }

    }

    private void notifyDefaultDisplayCallbacks(boolean showing) {
        // TODO(b/140053364)
        whitelistIpcs(() -> {
            int size = mKeyguardStateCallbacks.size();
            for (int i = size - 1; i >= 0; i--) {
                IKeyguardStateCallback callback = mKeyguardStateCallbacks.get(i);
                try {
                    callback.onShowingStateChanged(showing, KeyguardUpdateMonitor.getCurrentUser());
                } catch (RemoteException e) {
                    Slog.w(TAG, "Failed to call onShowingStateChanged", e);
                    if (e instanceof DeadObjectException) {
                        mKeyguardStateCallbacks.remove(callback);
                    }
                }
            }
        });
        updateInputRestrictedLocked();
        mUiBgExecutor.execute(() -> {
            mTrustManager.reportKeyguardShowingChanged();
        });
    }

    private void notifyTrustedChangedLocked(boolean trusted) {
        int size = mKeyguardStateCallbacks.size();
        for (int i = size - 1; i >= 0; i--) {
            try {
                mKeyguardStateCallbacks.get(i).onTrustedChanged(trusted);
            } catch (RemoteException e) {
                Slog.w(TAG, "Failed to call notifyTrustedChangedLocked", e);
                if (e instanceof DeadObjectException) {
                    mKeyguardStateCallbacks.remove(i);
                }
            }
        }
    }

    public void setPendingLock(boolean hasPendingLock) {
        mPendingLock = hasPendingLock;
        Trace.traceCounter(Trace.TRACE_TAG_APP, "pendingLock", mPendingLock ? 1 : 0);
    }

    private boolean isViewRootReady() {
        return mKeyguardViewControllerLazy.get().getViewRootImpl() != null;
    }

    public void addStateMonitorCallback(IKeyguardStateCallback callback) {
        synchronized (this) {
            mKeyguardStateCallbacks.add(callback);
            try {
                callback.onSimSecureStateChanged(mUpdateMonitor.isSimPinSecure());
                callback.onShowingStateChanged(mShowing, KeyguardUpdateMonitor.getCurrentUser());
                callback.onInputRestrictedStateChanged(mInputRestricted);
                callback.onTrustedChanged(mUpdateMonitor.getUserHasTrust(
                        KeyguardUpdateMonitor.getCurrentUser()));
            } catch (RemoteException e) {
                Slog.w(TAG, "Failed to call to IKeyguardStateCallback", e);
            }
        }
    }

    private static class DismissMessage {
        private final CharSequence mMessage;
        private final IKeyguardDismissCallback mCallback;

        DismissMessage(IKeyguardDismissCallback callback, CharSequence message) {
            mCallback = callback;
            mMessage = message;
        }

        public IKeyguardDismissCallback getCallback() {
            return mCallback;
        }

        public CharSequence getMessage() {
            return mMessage;
        }
    }

    /**
     * Notify whether keyguard has created a remote animation runner for next app launch.
     */
    public void launchingActivityOverLockscreen(boolean isLaunchingActivityOverLockscreen) {
        mKeyguardTransitions.setLaunchingActivityOverLockscreen(isLaunchingActivityOverLockscreen);
    }

    /**
     * Implementation of RemoteAnimationRunner that creates a new
     * {@link ActivityLaunchAnimator.Runner} whenever onAnimationStart is called, delegating the
     * remote animation methods to that runner.
     */
    private class ActivityLaunchRemoteAnimationRunner extends IRemoteAnimationRunner.Stub {

        private final ActivityLaunchAnimator.Controller mActivityLaunchController;
        @Nullable private ActivityLaunchAnimator.Runner mRunner;

        ActivityLaunchRemoteAnimationRunner(ActivityLaunchAnimator.Controller controller) {
            mActivityLaunchController = controller;
        }

        @Override
        public void onAnimationCancelled() throws RemoteException {
            if (mRunner != null) {
                mRunner.onAnimationCancelled();
            }
        }

        @Override
        public void onAnimationStart(int transit, RemoteAnimationTarget[] apps,
                RemoteAnimationTarget[] wallpapers,
                RemoteAnimationTarget[] nonApps,
                IRemoteAnimationFinishedCallback finishedCallback)
                throws RemoteException {
            mRunner = mActivityLaunchAnimator.get().createRunner(mActivityLaunchController);
            mRunner.onAnimationStart(transit, apps, wallpapers, nonApps, finishedCallback);
        }
    }

    /**
     * Subclass of {@link ActivityLaunchRemoteAnimationRunner} that calls {@link #setOccluded} when
     * onAnimationStart is called.
     */
    private class OccludeActivityLaunchRemoteAnimationRunner
            extends ActivityLaunchRemoteAnimationRunner {

        OccludeActivityLaunchRemoteAnimationRunner(
                ActivityLaunchAnimator.Controller controller) {
            super(controller);
        }

        @Override
        public void onAnimationStart(int transit, RemoteAnimationTarget[] apps,
                RemoteAnimationTarget[] wallpapers, RemoteAnimationTarget[] nonApps,
                IRemoteAnimationFinishedCallback finishedCallback) throws RemoteException {
            super.onAnimationStart(transit, apps, wallpapers, nonApps, finishedCallback);

            mInteractionJankMonitor.begin(
                    createInteractionJankMonitorConf(CUJ_LOCKSCREEN_OCCLUSION)
                            .setTag("OCCLUDE"));

            // This is the first signal we have from WM that we're going to be occluded. Set our
            // internal state to reflect that immediately, vs. waiting for the launch animator to
            // begin. Otherwise, calls to setShowingLocked, etc. will not know that we're about to
            // be occluded and might re-show the keyguard.
            Log.d(TAG, "OccludeAnimator#onAnimationStart. Set occluded = true.");
            setOccluded(true /* isOccluded */, false /* animate */);
        }

        @Override
        public void onAnimationCancelled() throws RemoteException {
            super.onAnimationCancelled();
            Log.d(TAG, "Occlude animation cancelled by WM.");
            mInteractionJankMonitor.cancel(CUJ_LOCKSCREEN_OCCLUSION);
        }
    }

    private IRemoteAnimationRunner validatingRemoteAnimationRunner(IRemoteAnimationRunner wrapped) {
        return new IRemoteAnimationRunner.Stub() {
            @Override
            public void onAnimationCancelled() throws RemoteException {
                wrapped.onAnimationCancelled();
            }

            @Override
            public void onAnimationStart(int transit, RemoteAnimationTarget[] apps,
                                         RemoteAnimationTarget[] wallpapers,
                                         RemoteAnimationTarget[] nonApps,
                                         IRemoteAnimationFinishedCallback finishedCallback)
                    throws RemoteException {
                if (!isViewRootReady()) {
                    Log.w(TAG, "Skipping remote animation - view root not ready");
                    return;
                }

                wrapped.onAnimationStart(transit, apps, wallpapers, nonApps, finishedCallback);
            }
        };
    }
}