Don't flash colors when hinting

We're not flashing the colors anymore while hinting.
This also fixes a bug where the background wasn't
transforming properly when the last view was colorized.

Fixes: 37924486
Fixes: 36413876
Test: hint on lockscreen while the last notification is colorized
Change-Id: Ic9c4bf3c65e5d688ba43d71fb2843ebb7855c4f1
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/ActivatableNotificationView.java b/packages/SystemUI/src/com/android/systemui/statusbar/ActivatableNotificationView.java
index d7eab97..36222e6 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/ActivatableNotificationView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/ActivatableNotificationView.java
@@ -23,6 +23,7 @@
 import android.animation.ValueAnimator;
 import android.content.Context;
 import android.graphics.Canvas;
+import android.graphics.Color;
 import android.graphics.RectF;
 import android.util.AttributeSet;
 import android.view.MotionEvent;
@@ -177,6 +178,7 @@
      * Similar to mDimmed but is also true if it's not dimmable but should be
      */
     private boolean mNeedsDimming;
+    private int mDimmedAlpha;
 
     public ActivatableNotificationView(Context context, AttributeSet attrs) {
         super(context, attrs);
@@ -214,6 +216,8 @@
         mBackgroundDimmed = findViewById(R.id.backgroundDimmed);
         mBackgroundNormal.setCustomBackground(R.drawable.notification_material_bg);
         mBackgroundDimmed.setCustomBackground(R.drawable.notification_material_bg_dim);
+        mDimmedAlpha = Color.alpha(mContext.getColor(
+                R.color.notification_material_background_dimmed_color));
         updateBackground();
         updateBackgroundTint();
         updateOutlineAlpha();
@@ -492,10 +496,21 @@
      *                       used and the background color not at all.
      */
     public void setOverrideTintColor(int color, float overrideAmount) {
+        if (mDark) {
+            color = NO_COLOR;
+            overrideAmount = 0;
+        }
         mOverrideTint = color;
         mOverrideAmount = overrideAmount;
         int newColor = calculateBgColor();
         setBackgroundTintColor(newColor);
+        if (!isDimmable() && mNeedsDimming) {
+           mBackgroundNormal.setDrawableAlpha((int) NotificationUtils.interpolate(255,
+                   mDimmedAlpha,
+                   overrideAmount));
+        } else {
+            mBackgroundNormal.setDrawableAlpha(255);
+        }
     }
 
     protected void updateBackgroundTint() {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationBackgroundView.java b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationBackgroundView.java
index dea9e31f..194cdc7 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationBackgroundView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationBackgroundView.java
@@ -144,4 +144,8 @@
             ripple.setColor(ColorStateList.valueOf(color));
         }
     }
+
+    public void setDrawableAlpha(int drawableAlpha) {
+        mBackground.setAlpha(drawableAlpha);
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationShelf.java b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationShelf.java
index b134fc5..0542bfb 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationShelf.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationShelf.java
@@ -200,7 +200,7 @@
         //  find the first view that doesn't overlap with the shelf
         int notificationIndex = 0;
         int notGoneIndex = 0;
-        int colorOfViewBeforeLast = 0;
+        int colorOfViewBeforeLast = NO_COLOR;
         boolean backgroundForceHidden = false;
         if (mHideBackground && !mShelfState.hasItemsInStableShelf) {
             backgroundForceHidden = true;
@@ -254,7 +254,10 @@
                 colorTwoBefore = previousColor;
                 transitionAmount = inShelfAmount;
             }
-            if (isLastChild && colorOfViewBeforeLast != NO_COLOR) {
+            if (isLastChild) {
+                if (colorOfViewBeforeLast == NO_COLOR) {
+                    colorOfViewBeforeLast = ownColorUntinted;
+                }
                 row.setOverrideTintColor(colorOfViewBeforeLast, inShelfAmount);
             } else {
                 colorOfViewBeforeLast = ownColorUntinted;
@@ -308,8 +311,9 @@
         float fullTransitionAmount;
         float iconTransitionAmount;
         float shelfStart = getTranslationY();
-        if (viewEnd >= shelfStart && (mAmbientState.isShadeExpanded()
-                || (!row.isPinned() && !row.isHeadsUpAnimatingAway()))) {
+        if (viewEnd >= shelfStart && (!mAmbientState.isUnlockHintRunning() || row.isInShelf())
+                && (mAmbientState.isShadeExpanded()
+                        || (!row.isPinned() && !row.isHeadsUpAnimatingAway()))) {
             if (viewStart < shelfStart) {
 
                 float fullAmount = (shelfStart - viewStart) / fullHeight;
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
index 8a97be5..3216738 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
@@ -1968,6 +1968,18 @@
     }
 
     @Override
+    protected void onUnlockHintFinished() {
+        super.onUnlockHintFinished();
+        mNotificationStackScroller.setUnlockHintRunning(false);
+    }
+
+    @Override
+    protected void onUnlockHintStarted() {
+        super.onUnlockHintStarted();
+        mNotificationStackScroller.setUnlockHintRunning(true);
+    }
+
+    @Override
     public KeyguardAffordanceView getLeftIcon() {
         return getLayoutDirection() == LAYOUT_DIRECTION_RTL
                 ? mKeyguardBottomArea.getRightView()
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java
index e86fd48..b89cd88 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java
@@ -35,7 +35,6 @@
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.systemui.DejankUtils;
-import com.android.systemui.EventLogConstants;
 import com.android.systemui.EventLogTags;
 import com.android.systemui.Interpolators;
 import com.android.keyguard.LatencyTracker;
@@ -1017,14 +1016,22 @@
             @Override
             public void run() {
                 notifyExpandingFinished();
-                mStatusBar.onHintFinished();
+                onUnlockHintFinished();
                 mHintAnimationRunning = false;
             }
         });
-        mStatusBar.onUnlockHintStarted();
+        onUnlockHintStarted();
         mHintAnimationRunning = true;
     }
 
+    protected void onUnlockHintFinished() {
+        mStatusBar.onHintFinished();
+    }
+
+    protected void onUnlockHintStarted() {
+        mStatusBar.onUnlockHintStarted();
+    }
+
     /**
      * Phase 1: Move everything upwards.
      */
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/stack/AmbientState.java b/packages/SystemUI/src/com/android/systemui/statusbar/stack/AmbientState.java
index b2b23a55..e409b9c 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/stack/AmbientState.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/stack/AmbientState.java
@@ -60,6 +60,7 @@
     private boolean mExpansionChanging;
     private boolean mPanelFullWidth;
     private boolean mPulsing;
+    private boolean mUnlockHintRunning;
 
     public AmbientState(Context context) {
         reload(context);
@@ -305,4 +306,12 @@
     public void setPanelFullWidth(boolean panelFullWidth) {
         mPanelFullWidth = panelFullWidth;
     }
+
+    public void setUnlockHintRunning(boolean unlockHintRunning) {
+        mUnlockHintRunning = unlockHintRunning;
+    }
+
+    public boolean isUnlockHintRunning() {
+        return mUnlockHintRunning;
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java b/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java
index 15fcb38..d0c3a60 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java
@@ -4190,6 +4190,10 @@
         mAmbientState.setPanelFullWidth(isFullWidth);
     }
 
+    public void setUnlockHintRunning(boolean running) {
+        mAmbientState.setUnlockHintRunning(running);
+    }
+
     /**
      * A listener that is notified when some child locations might have changed.
      */