Merge "Fix heads-up notification being sometimes clipped when pulsing" into tm-qpr-dev
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardClockPositionAlgorithm.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardClockPositionAlgorithm.java
index 01af486..c163a89 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardClockPositionAlgorithm.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardClockPositionAlgorithm.java
@@ -89,14 +89,19 @@
     private float mPanelExpansion;
 
     /**
-     * Burn-in prevention x translation.
+     * Max burn-in prevention x translation.
      */
-    private int mBurnInPreventionOffsetX;
+    private int mMaxBurnInPreventionOffsetX;
 
     /**
-     * Burn-in prevention y translation for clock layouts.
+     * Max burn-in prevention y translation for clock layouts.
      */
-    private int mBurnInPreventionOffsetYClock;
+    private int mMaxBurnInPreventionOffsetYClock;
+
+    /**
+     * Current burn-in prevention y translation.
+     */
+    private float mCurrentBurnInOffsetY;
 
     /**
      * Doze/AOD transition amount.
@@ -155,9 +160,9 @@
 
         mContainerTopPadding =
                 res.getDimensionPixelSize(R.dimen.keyguard_clock_top_margin);
-        mBurnInPreventionOffsetX = res.getDimensionPixelSize(
+        mMaxBurnInPreventionOffsetX = res.getDimensionPixelSize(
                 R.dimen.burn_in_prevention_offset_x);
-        mBurnInPreventionOffsetYClock = res.getDimensionPixelSize(
+        mMaxBurnInPreventionOffsetYClock = res.getDimensionPixelSize(
                 R.dimen.burn_in_prevention_offset_y_clock);
     }
 
@@ -215,7 +220,10 @@
         if (mBypassEnabled) {
             return (int) (mUnlockedStackScrollerPadding + mOverStretchAmount);
         } else if (mIsSplitShade) {
-            return clockYPosition - mSplitShadeTopNotificationsMargin + mUserSwitchHeight;
+            // mCurrentBurnInOffsetY is subtracted to make notifications not follow clock adjustment
+            // for burn-in. It can make pulsing notification go too high and it will get clipped
+            return clockYPosition - mSplitShadeTopNotificationsMargin + mUserSwitchHeight
+                    - (int) mCurrentBurnInOffsetY;
         } else {
             return clockYPosition + mKeyguardStatusHeight;
         }
@@ -255,11 +263,11 @@
 
         // This will keep the clock at the top but out of the cutout area
         float shift = 0;
-        if (clockY - mBurnInPreventionOffsetYClock < mCutoutTopInset) {
-            shift = mCutoutTopInset - (clockY - mBurnInPreventionOffsetYClock);
+        if (clockY - mMaxBurnInPreventionOffsetYClock < mCutoutTopInset) {
+            shift = mCutoutTopInset - (clockY - mMaxBurnInPreventionOffsetYClock);
         }
 
-        int burnInPreventionOffsetY = mBurnInPreventionOffsetYClock; // requested offset
+        int burnInPreventionOffsetY = mMaxBurnInPreventionOffsetYClock; // requested offset
         final boolean hasUdfps = mUdfpsTop > -1;
         if (hasUdfps && !mIsClockTopAligned) {
             // ensure clock doesn't overlap with the udfps icon
@@ -267,8 +275,8 @@
                 // sometimes the clock textView extends beyond udfps, so let's just use the
                 // space above the KeyguardStatusView/clock as our burn-in offset
                 burnInPreventionOffsetY = (int) (clockY - mCutoutTopInset) / 2;
-                if (mBurnInPreventionOffsetYClock < burnInPreventionOffsetY) {
-                    burnInPreventionOffsetY = mBurnInPreventionOffsetYClock;
+                if (mMaxBurnInPreventionOffsetYClock < burnInPreventionOffsetY) {
+                    burnInPreventionOffsetY = mMaxBurnInPreventionOffsetYClock;
                 }
                 shift = -burnInPreventionOffsetY;
             } else {
@@ -276,16 +284,18 @@
                 float lowerSpace = mUdfpsTop - mClockBottom;
                 // center the burn-in offset within the upper + lower space
                 burnInPreventionOffsetY = (int) (lowerSpace + upperSpace) / 2;
-                if (mBurnInPreventionOffsetYClock < burnInPreventionOffsetY) {
-                    burnInPreventionOffsetY = mBurnInPreventionOffsetYClock;
+                if (mMaxBurnInPreventionOffsetYClock < burnInPreventionOffsetY) {
+                    burnInPreventionOffsetY = mMaxBurnInPreventionOffsetYClock;
                 }
                 shift = (lowerSpace - upperSpace) / 2;
             }
         }
 
+        float fullyDarkBurnInOffset = burnInPreventionOffsetY(burnInPreventionOffsetY);
         float clockYDark = clockY
-                + burnInPreventionOffsetY(burnInPreventionOffsetY)
+                + fullyDarkBurnInOffset
                 + shift;
+        mCurrentBurnInOffsetY = MathUtils.lerp(0, fullyDarkBurnInOffset, darkAmount);
         return (int) (MathUtils.lerp(clockY, clockYDark, darkAmount) + mOverStretchAmount);
     }
 
@@ -325,7 +335,7 @@
     }
 
     private float burnInPreventionOffsetX() {
-        return getBurnInOffset(mBurnInPreventionOffsetX, true /* xAxis */);
+        return getBurnInOffset(mMaxBurnInPreventionOffsetX, true /* xAxis */);
     }
 
     public static class Result {
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/KeyguardClockPositionAlgorithmTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/KeyguardClockPositionAlgorithmTest.java
index ed3f710..7e69efa 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/KeyguardClockPositionAlgorithmTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/KeyguardClockPositionAlgorithmTest.java
@@ -264,6 +264,19 @@
     }
 
     @Test
+    public void notifPositionAlignedWithClockAndBurnInOffsetInSplitShadeMode() {
+        setSplitShadeTopMargin(100); // this makes clock to be at 100
+        givenAOD();
+        mIsSplitShade = true;
+        givenMaxBurnInOffset(100);
+        givenHighestBurnInOffset(); // this makes clock to be at 200
+        // WHEN the position algorithm is run
+        positionClock();
+        // THEN the notif padding adjusts for burn-in offset: clock position - burn-in offset
+        assertThat(mClockPosition.stackScrollerPadding).isEqualTo(100);
+    }
+
+    @Test
     public void clockPositionedDependingOnMarginInSplitShade() {
         setSplitShadeTopMargin(400);
         givenLockScreen();