Use UnlockMethodCache#canSkipBouncer in user switcher

KeyguardMonitor#canSkipBouncer was not updated properly when the phone
was unlocked using fingerprint.

This CL removes that method and changes UserSwitcherController to query
UnlockMethodCache directly, as it was KeyguardMonitor's only client for
that method.

Test: manual unlocking with FP and with pattern
Test: no automated test yet
Bug: 140486529
Change-Id: Idbff4fbabca962c632ff5d78b25418c0502db9a7

packages/SystemUI/src/com/android/systemui/statusbar/policy/KeyguardMonitor.java

@@ -19,7 +19,6 @@ import com.android.systemui.statusbar.policy.KeyguardMonitor.Callback;
 public interface KeyguardMonitor extends CallbackController<Callback> {
 
     boolean isSecure();
-    boolean canSkipBouncer();
     boolean isShowing();
     boolean isOccluded();
     boolean isKeyguardFadingAway();

packages/SystemUI/src/com/android/systemui/statusbar/policy/KeyguardMonitorImpl.java

@@ -17,14 +17,12 @@
 package com.android.systemui.statusbar.policy;
 
 import android.annotation.NonNull;
-import android.app.ActivityManager;
 import android.content.Context;
 
 import com.android.internal.util.Preconditions;
 import com.android.keyguard.KeyguardUpdateMonitor;
 import com.android.keyguard.KeyguardUpdateMonitorCallback;
 import com.android.systemui.Dependency;
-import com.android.systemui.settings.CurrentUserTracker;
 
 import java.util.ArrayList;
 
@@ -40,14 +38,11 @@ public class KeyguardMonitorImpl extends KeyguardUpdateMonitorCallback
     private final ArrayList<Callback> mCallbacks = new ArrayList<>();
 
     private final Context mContext;
-    private final CurrentUserTracker mUserTracker;
     private final KeyguardUpdateMonitor mKeyguardUpdateMonitor;
 
-    private int mCurrentUser;
     private boolean mShowing;
     private boolean mSecure;
     private boolean mOccluded;
-    private boolean mCanSkipBouncer;
 
     private boolean mListening;
     private boolean mKeyguardFadingAway;
@@ -63,13 +58,6 @@ public class KeyguardMonitorImpl extends KeyguardUpdateMonitorCallback
     public KeyguardMonitorImpl(Context context) {
         mContext = context;
         mKeyguardUpdateMonitor = Dependency.get(KeyguardUpdateMonitor.class);
-        mUserTracker = new CurrentUserTracker(mContext) {
-            @Override
-            public void onUserSwitched(int newUserId) {
-                mCurrentUser = newUserId;
-                updateCanSkipBouncerState();
-            }
-        };
     }
 
     @Override
@@ -78,10 +66,7 @@ public class KeyguardMonitorImpl extends KeyguardUpdateMonitorCallback
         mCallbacks.add(callback);
         if (mCallbacks.size() != 0 && !mListening) {
             mListening = true;
-            mCurrentUser = ActivityManager.getCurrentUser();
-            updateCanSkipBouncerState();
             mKeyguardUpdateMonitor.registerCallback(this);
-            mUserTracker.startTracking();
         }
     }
 
@@ -91,7 +76,6 @@ public class KeyguardMonitorImpl extends KeyguardUpdateMonitorCallback
         if (mCallbacks.remove(callback) && mCallbacks.size() == 0 && mListening) {
             mListening = false;
             mKeyguardUpdateMonitor.removeCallback(this);
-            mUserTracker.stopTracking();
         }
     }
 
@@ -110,11 +94,6 @@ public class KeyguardMonitorImpl extends KeyguardUpdateMonitorCallback
         return mOccluded;
     }
 
-    @Override
-    public boolean canSkipBouncer() {
-        return mCanSkipBouncer;
-    }
-
     public void notifyKeyguardState(boolean showing, boolean secure, boolean occluded) {
         if (mShowing == showing && mSecure == secure && mOccluded == occluded) return;
         mShowing = showing;
@@ -125,7 +104,6 @@ public class KeyguardMonitorImpl extends KeyguardUpdateMonitorCallback
 
     @Override
     public void onTrustChanged(int userId) {
-        updateCanSkipBouncerState();
         notifyKeyguardChanged();
     }
 
@@ -133,10 +111,6 @@ public class KeyguardMonitorImpl extends KeyguardUpdateMonitorCallback
         return mKeyguardUpdateMonitor.isDeviceInteractive();
     }
 
-    private void updateCanSkipBouncerState() {
-        mCanSkipBouncer = mKeyguardUpdateMonitor.getUserCanSkipBouncer(mCurrentUser);
-    }
-
     private void notifyKeyguardChanged() {
         // Copy the list to allow removal during callback.
         new ArrayList<>(mCallbacks).forEach(Callback::onKeyguardShowingChanged);

packages/SystemUI/src/com/android/systemui/statusbar/policy/UserSwitcherController.java

@@ -62,6 +62,7 @@ import com.android.systemui.plugins.ActivityStarter;
 import com.android.systemui.plugins.qs.DetailAdapter;
 import com.android.systemui.qs.tiles.UserDetailView;
 import com.android.systemui.statusbar.phone.SystemUIDialog;
+import com.android.systemui.statusbar.phone.UnlockMethodCache;
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
@@ -597,17 +598,19 @@ public class UserSwitcherController implements Dumpable {
 
         final UserSwitcherController mController;
         private final KeyguardMonitor mKeyguardMonitor;
+        private final UnlockMethodCache mUnlockMethodCache;
 
         protected BaseUserAdapter(UserSwitcherController controller) {
             mController = controller;
             mKeyguardMonitor = controller.mKeyguardMonitor;
+            mUnlockMethodCache = UnlockMethodCache.getInstance(controller.mContext);
             controller.addAdapter(new WeakReference<>(this));
         }
 
         public int getUserCount() {
             boolean secureKeyguardShowing = mKeyguardMonitor.isShowing()
                     && mKeyguardMonitor.isSecure()
-                    && !mKeyguardMonitor.canSkipBouncer();
+                    && !mUnlockMethodCache.canSkipBouncer();
             if (!secureKeyguardShowing) {
                 return mController.getUsers().size();
             }
@@ -629,7 +632,7 @@ public class UserSwitcherController implements Dumpable {
         public int getCount() {
             boolean secureKeyguardShowing = mKeyguardMonitor.isShowing()
                     && mKeyguardMonitor.isSecure()
-                    && !mKeyguardMonitor.canSkipBouncer();
+                    && !mUnlockMethodCache.canSkipBouncer();
             if (!secureKeyguardShowing) {
                 return mController.getUsers().size();
             }

packages/SystemUI/tests/src/com/android/systemui/utils/leaks/FakeKeyguardMonitor.java

@@ -80,9 +80,4 @@ public class FakeKeyguardMonitor implements KeyguardMonitor {
     public long calculateGoingToFullShadeDelay() {
         return 0;
     }
-
-    @Override
-    public boolean canSkipBouncer() {
-        return false;
-    }
 }