Accounting for user switcher on split shade lock screen

Adjusting KeyguardClockPositionAlgorithm so it properly positions elements when user switcher is visible - moving notifications down and keeping clock at the same place.
Also actually passing height of old user switcher (compared to new QS user switcher) to the algorithm.

Bug: 210121179
Test: KeyguardClockPositionAlgorithmTest + manual
Change-Id: I76a84b4f2eca76981cc69a7a1163709a7e8d516c

packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardClockPositionAlgorithm.java

@@ -57,8 +57,7 @@ public class KeyguardClockPositionAlgorithm {
     private int mUserSwitchPreferredY;
 
     /**
-     * Minimum top margin to avoid overlap with status bar, lock icon, or multi-user switcher
-     * avatar.
+     * Minimum top margin to avoid overlap with status bar or multi-user switcher avatar.
      */
     private int mMinTopMargin;
 
@@ -203,7 +202,7 @@ public class KeyguardClockPositionAlgorithm {
         if (mBypassEnabled) {
             return mUnlockedStackScrollerPadding;
         } else if (mIsSplitShade) {
-            return getClockY(1.0f, mDarkAmount);
+            return getClockY(1.0f, mDarkAmount) + mUserSwitchHeight;
         } else {
             return getClockY(1.0f, mDarkAmount) + mKeyguardStatusHeight;
         }
@@ -213,7 +212,7 @@ public class KeyguardClockPositionAlgorithm {
         if (mBypassEnabled) {
             return (int) (mUnlockedStackScrollerPadding + mOverStretchAmount);
         } else if (mIsSplitShade) {
-            return Math.max(0, clockYPosition - mSplitShadeTopNotificationsMargin);
+            return clockYPosition - mSplitShadeTopNotificationsMargin + mUserSwitchHeight;
         } else {
             return clockYPosition + mKeyguardStatusHeight;
         }
@@ -223,7 +222,7 @@ public class KeyguardClockPositionAlgorithm {
         if (mBypassEnabled) {
             return mUnlockedStackScrollerPadding;
         } else if (mIsSplitShade) {
-            return Math.max(mSplitShadeTargetTopMargin, mMinTopMargin);
+            return mSplitShadeTargetTopMargin + mUserSwitchHeight;
         } else {
             return mMinTopMargin + mKeyguardStatusHeight;
         }
@@ -231,7 +230,7 @@ public class KeyguardClockPositionAlgorithm {
 
     private int getExpandedPreferredClockY() {
         if (mIsSplitShade) {
-            return Math.max(mSplitShadeTargetTopMargin, mMinTopMargin);
+            return mSplitShadeTargetTopMargin;
         } else {
             return mMinTopMargin;
         }

packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java

@@ -1303,8 +1303,11 @@ public class NotificationPanelViewController extends PanelViewController {
             mKeyguardStatusViewController.displayClock(LARGE);
         }
         updateKeyguardStatusViewAlignment(true /* animate */);
-        int userIconHeight = mKeyguardQsUserSwitchController != null
+        int userSwitcherHeight = mKeyguardQsUserSwitchController != null
                 ? mKeyguardQsUserSwitchController.getUserIconHeight() : 0;
+        if (mKeyguardUserSwitcherController != null) {
+            userSwitcherHeight = mKeyguardUserSwitcherController.getHeight();
+        }
         float expandedFraction =
                 mUnlockedScreenOffAnimationController.isScreenOffAnimationPlaying()
                         ? 1.0f : getExpandedFraction();
@@ -1324,7 +1327,7 @@ public class NotificationPanelViewController extends PanelViewController {
                 mStatusBarHeaderHeightKeyguard,
                 expandedFraction,
                 mKeyguardStatusViewController.getLockscreenHeight(),
-                userIconHeight,
+                userSwitcherHeight,
                 userSwitcherPreferredY,
                 darkamount, mOverStretchAmount,
                 bypassEnabled, getUnlockedStackScrollerPadding(),

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

@@ -245,6 +245,11 @@ public class KeyguardUserSwitcherController extends ViewController<KeyguardUserS
         return mUserSwitcherController.isSimpleUserSwitcher();
     }
 
+    public int getHeight() {
+        // TODO(brzezinski): fix height value when user switcher is back to collapsed
+        return mListView.getHeight();
+    }
+
     /**
      * @param animate if the transition should be animated
      * @return true if the switcher state changed

packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/KeyguardClockPositionAlgorithmTest.java

@@ -62,6 +62,7 @@ public class KeyguardClockPositionAlgorithmTest extends SysuiTestCase {
     private float mPanelExpansion;
     private int mKeyguardStatusBarHeaderHeight;
     private int mKeyguardStatusHeight;
+    private int mUserSwitchHeight;
     private float mDark;
     private float mQsExpansion;
     private int mCutoutTopInset = 0;
@@ -264,8 +265,7 @@ public class KeyguardClockPositionAlgorithmTest extends SysuiTestCase {
 
     @Test
     public void clockPositionedDependingOnMarginInSplitShade() {
-        when(mResources.getDimensionPixelSize(R.dimen.keyguard_split_shade_top_margin))
-                .thenReturn(400);
+        setSplitShadeTopMargin(400);
         mClockPositionAlgorithm.loadDimens(mResources);
         givenLockScreen();
         mIsSplitShade = true;
@@ -290,6 +290,32 @@ public class KeyguardClockPositionAlgorithmTest extends SysuiTestCase {
         assertThat(mClockPosition.stackScrollerPadding).isEqualTo(30);
     }
 
+    @Test
+    public void notifPaddingAccountsForMultiUserSwitcherInSplitShade() {
+        setSplitShadeTopMargin(100);
+        mUserSwitchHeight = 150;
+        mClockPositionAlgorithm.loadDimens(mResources);
+        givenLockScreen();
+        mIsSplitShade = true;
+        // WHEN the position algorithm is run
+        positionClock();
+        // THEN the notif padding is split shade top margin + user switch height
+        assertThat(mClockPosition.stackScrollerPadding).isEqualTo(250);
+    }
+
+    @Test
+    public void clockDoesntAccountForMultiUserSwitcherInSplitShade() {
+        setSplitShadeTopMargin(100);
+        mUserSwitchHeight = 150;
+        mClockPositionAlgorithm.loadDimens(mResources);
+        givenLockScreen();
+        mIsSplitShade = true;
+        // WHEN the position algorithm is run
+        positionClock();
+        // THEN clockY = split shade top margin
+        assertThat(mClockPosition.clockY).isEqualTo(100);
+    }
+
     @Test
     public void notifPaddingExpandedAlignedWithClockInSplitShadeMode() {
         givenLockScreen();
@@ -495,6 +521,11 @@ public class KeyguardClockPositionAlgorithmTest extends SysuiTestCase {
         assertThat(mClockPosition.clockY).isEqualTo(mCutoutTopInset);
     }
 
+    private void setSplitShadeTopMargin(int value) {
+        when(mResources.getDimensionPixelSize(R.dimen.keyguard_split_shade_top_margin))
+                .thenReturn(value);
+    }
+
     private void givenHighestBurnInOffset() {
         when(BurnInHelperKt.getBurnInOffset(anyInt(), anyBoolean())).then(returnsFirstArg());
     }
@@ -529,7 +560,7 @@ public class KeyguardClockPositionAlgorithmTest extends SysuiTestCase {
                 mKeyguardStatusBarHeaderHeight,
                 mPanelExpansion,
                 mKeyguardStatusHeight,
-                0 /* userSwitchHeight */,
+                mUserSwitchHeight,
                 0 /* userSwitchPreferredY */,
                 mDark,
                 ZERO_DRAG,