Fix regression of pressing power key cancel sfps enrollment

Previous ag/19699461 used to fix UdfpsControllerOverlay bug.
However, we didn't consider a feature click power button to
notify user with a Toast on sfps project.

Bug: 245383975
Bug: 228261883
Bug: 242478941
Bug: 227905887
Test: make RunSettingsRoboTests ROBOTEST_FILTER=FingerprintEnrollEnrollingTest
Test: manual verify sfps enrollment, press/long press power key would
not cancel enrollment.
Test: manual verify udfps enrollment, UdfpsControllerOverlay lose focus
cancel enrollment.

Change-Id: I44394bdb91660b27a704064a7f7cdc5d0ad95d30

src/com/android/settings/biometrics/fingerprint/FingerprintEnrollEnrolling.java

@@ -203,7 +203,9 @@ public class FingerprintEnrollEnrolling extends BiometricsEnrollEnrolling {
         // Do NOT cancel enrollment progress after rotating, adding mIsOrientationChanged
         // to judge if the focus changed was triggered by rotation, current WMS has triple callbacks
         // (true > false > true), we need to reset mIsOrientationChanged when !hasFocus callback.
-        if (!mIsOrientationChanged) {
+        // Side fps do not have to synchronize udfpsController overlay state, we should bypass sfps
+        // from onWindowFocusChanged() as long press sfps power key will prompt dialog to users.
+        if (!mIsOrientationChanged && !mCanAssumeSfps) {
             onCancelEnrollment(FINGERPRINT_ERROR_USER_CANCELED);
         } else {
             mIsOrientationChanged = false;

tests/robotests/src/com/android/settings/biometrics/fingerprint/FingerprintEnrollEnrollingTest.java

@@ -222,6 +222,16 @@ public class FingerprintEnrollEnrollingTest {
         );
     }
 
+    @Test
+    public void fingerprintSfpsEnrollment_loseFocus_shouldNotCancel() {
+        initializeActivityFor(FingerprintSensorProperties.TYPE_POWER_BUTTON);
+
+        mActivity.onEnrollmentProgressChange(1, 1);
+        mActivity.onWindowFocusChanged(true);
+
+        verify(mActivity, never()).onCancelEnrollment(anyInt());
+    }
+
     private void initializeActivityFor(int sensorType) {
         final List<ComponentInfoInternal> componentInfo = new ArrayList<>();
         final FingerprintSensorPropertiesInternal prop =