Merge "Hiding split shade status bar for heads up notifications" into sc-v2-dev am: 6366f4e22a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16056792

Change-Id: Iadf742d4113f945eca94478477f68caf2683a36c

packages/SystemUI/animation/src/com/android/systemui/animation/Interpolators.java

@@ -197,26 +197,6 @@ public class Interpolators {
         return MathUtils.max(0.0f, (float) (1.0f - Math.exp(-4 * progress)));
     }
 
-    /**
-     * Interpolate alpha for notifications background scrim during shade expansion.
-     * @param fraction Shade expansion fraction
-     * @param forUiContent If we want the alpha of the scrims, or ui that's on top of them.
-     */
-    public static float getNotificationScrimAlpha(float fraction, boolean forUiContent) {
-        if (forUiContent) {
-            fraction = MathUtils.constrainedMap(0f, 1f, 0.3f, 1f, fraction);
-        } else {
-            fraction = MathUtils.constrainedMap(0f, 1f, 0f, 0.5f, fraction);
-        }
-        fraction = fraction * 1.2f - 0.2f;
-        if (fraction <= 0) {
-            return 0;
-        } else {
-            final float oneMinusFrac = 1f - fraction;
-            return (float) (1f - 0.5f * (1f - Math.cos(3.14159f * oneMinusFrac * oneMinusFrac)));
-        }
-    }
-
     // Create the default emphasized interpolator
     private static PathInterpolator createEmphasizedInterpolator() {
         Path path = new Path();

packages/SystemUI/animation/src/com/android/systemui/animation/ShadeInterpolation.kt

@@ -0,0 +1,37 @@
+package com.android.systemui.animation
+
+import android.util.MathUtils
+
+object ShadeInterpolation {
+
+    /**
+     * Interpolate alpha for notification background scrim during shade expansion.
+     * @param fraction Shade expansion fraction
+     */
+    @JvmStatic
+    fun getNotificationScrimAlpha(fraction: Float): Float {
+        val mappedFraction = MathUtils.constrainedMap(0f, 1f, 0f, 0.5f, fraction)
+        return interpolateEaseInOut(mappedFraction)
+    }
+
+    /**
+     * Interpolate alpha for shade content during shade expansion.
+     * @param fraction Shade expansion fraction
+     */
+    @JvmStatic
+    fun getContentAlpha(fraction: Float): Float {
+        val mappedFraction = MathUtils.constrainedMap(0f, 1f, 0.3f, 1f, fraction)
+        return interpolateEaseInOut(mappedFraction)
+    }
+
+    private fun interpolateEaseInOut(fraction: Float): Float {
+        val mappedFraction = fraction * 1.2f - 0.2f
+        return if (mappedFraction <= 0) {
+            0f
+        } else {
+            val oneMinusFrac = 1f - mappedFraction
+            (1f - 0.5f * (1f - Math.cos((3.14159f * oneMinusFrac * oneMinusFrac).toDouble())))
+                    .toFloat()
+        }
+    }
+}

packages/SystemUI/src/com/android/systemui/qs/QSFragment.java

@@ -40,6 +40,7 @@ import androidx.annotation.VisibleForTesting;
 import com.android.systemui.Dumpable;
 import com.android.systemui.R;
 import com.android.systemui.animation.Interpolators;
+import com.android.systemui.animation.ShadeInterpolation;
 import com.android.systemui.dump.DumpManager;
 import com.android.systemui.media.MediaHost;
 import com.android.systemui.plugins.FalsingManager;
@@ -574,7 +575,7 @@ public class QSFragment extends LifecycleFragment implements QS, CommandQueue.Ca
         } else if (progress > 0 && view.getVisibility() != View.VISIBLE) {
             view.setVisibility((View.VISIBLE));
         }
-        float alpha = Interpolators.getNotificationScrimAlpha(progress, true /* uiContent */);
+        float alpha = ShadeInterpolation.getContentAlpha(progress);
         view.setAlpha(alpha);
     }
 

packages/SystemUI/src/com/android/systemui/statusbar/NotificationShadeDepthController.kt

@@ -32,6 +32,7 @@ import androidx.dynamicanimation.animation.SpringAnimation
 import androidx.dynamicanimation.animation.SpringForce
 import com.android.systemui.Dumpable
 import com.android.systemui.animation.Interpolators
+import com.android.systemui.animation.ShadeInterpolation
 import com.android.systemui.dagger.SysUISingleton
 import com.android.systemui.dump.DumpManager
 import com.android.systemui.plugins.statusbar.StatusBarStateController
@@ -184,12 +185,12 @@ class NotificationShadeDepthController @Inject constructor(
         val animationRadius = MathUtils.constrain(shadeAnimation.radius,
                 blurUtils.minBlurRadius.toFloat(), blurUtils.maxBlurRadius.toFloat())
         val expansionRadius = blurUtils.blurRadiusOfRatio(
-                Interpolators.getNotificationScrimAlpha(
+                ShadeInterpolation.getNotificationScrimAlpha(
-                        if (shouldApplyShadeBlur()) shadeExpansion else 0f, false))
+                        if (shouldApplyShadeBlur()) shadeExpansion else 0f))
         var combinedBlur = (expansionRadius * INTERACTION_BLUR_FRACTION +
                 animationRadius * ANIMATION_BLUR_FRACTION)
-        val qsExpandedRatio = Interpolators.getNotificationScrimAlpha(qsPanelExpansion,
+        val qsExpandedRatio = ShadeInterpolation.getNotificationScrimAlpha(qsPanelExpansion) *
-                false /* notification */) * shadeExpansion
+                shadeExpansion
         combinedBlur = max(combinedBlur, blurUtils.blurRadiusOfRatio(qsExpandedRatio))
         combinedBlur = max(combinedBlur, blurUtils.blurRadiusOfRatio(transitionToFullShadeProgress))
         var shadeRadius = max(combinedBlur, wakeAndUnlockBlurRadius)

packages/SystemUI/src/com/android/systemui/statusbar/NotificationShelf.java

@@ -31,7 +31,7 @@ import android.view.animation.PathInterpolator;
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.systemui.R;
-import com.android.systemui.animation.Interpolators;
+import com.android.systemui.animation.ShadeInterpolation;
 import com.android.systemui.plugins.statusbar.StatusBarStateController.StateListener;
 import com.android.systemui.statusbar.notification.NotificationUtils;
 import com.android.systemui.statusbar.notification.row.ActivatableNotificationView;
@@ -168,8 +168,8 @@ public class NotificationShelf extends ActivatableNotificationView implements
             viewState.clipTopAmount = 0;
 
             if (ambientState.isExpansionChanging() && !ambientState.isOnKeyguard()) {
-                viewState.alpha = Interpolators.getNotificationScrimAlpha(
+                float expansion = ambientState.getExpansionFraction();
-                        ambientState.getExpansionFraction(), true /* notification */);
+                viewState.alpha = ShadeInterpolation.getContentAlpha(expansion);
             } else {
                 viewState.alpha = 1f - ambientState.getHideAmount();
             }

packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/StackScrollAlgorithm.java

@@ -27,7 +27,7 @@ import android.view.ViewGroup;
 import androidx.annotation.VisibleForTesting;
 
 import com.android.systemui.R;
-import com.android.systemui.animation.Interpolators;
+import com.android.systemui.animation.ShadeInterpolation;
 import com.android.systemui.statusbar.NotificationShelf;
 import com.android.systemui.statusbar.notification.row.ActivatableNotificationView;
 import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow;
@@ -408,8 +408,8 @@ public class StackScrollAlgorithm {
             viewState.alpha = 1f - ambientState.getHideAmount();
         } else if (ambientState.isExpansionChanging()) {
             // Adjust alpha for shade open & close.
-            viewState.alpha = Interpolators.getNotificationScrimAlpha(
+            float expansion = ambientState.getExpansionFraction();
-                    ambientState.getExpansionFraction(), true /* notification */);
+            viewState.alpha = ShadeInterpolation.getContentAlpha(expansion);
         }
 
         if (ambientState.isShadeExpanded() && view.mustStayOnScreen()

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

@@ -1247,6 +1247,7 @@ public class NotificationPanelViewController extends PanelViewController {
             stackScrollerPadding = mClockPositionResult.stackScrollerPaddingExpanded;
         }
 
+        mSplitShadeHeaderController.setShadeExpandedFraction(getExpandedFraction());
         mNotificationStackScrollLayoutController.setIntrinsicPadding(stackScrollerPadding);
         mKeyguardBottomArea.setAntiBurnInOffsetX(mClockPositionResult.clockX);
 

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

@@ -47,7 +47,7 @@ import com.android.settingslib.Utils;
 import com.android.systemui.DejankUtils;
 import com.android.systemui.Dumpable;
 import com.android.systemui.R;
-import com.android.systemui.animation.Interpolators;
+import com.android.systemui.animation.ShadeInterpolation;
 import com.android.systemui.dagger.SysUISingleton;
 import com.android.systemui.dagger.qualifiers.Main;
 import com.android.systemui.dock.DockManager;
@@ -579,8 +579,7 @@ public class ScrimController implements ViewTreeObserver.OnPreDrawListener, Dump
         if (isNaN(expansionFraction)) {
             return;
         }
-        expansionFraction = Interpolators
+        expansionFraction = ShadeInterpolation.getNotificationScrimAlpha(expansionFraction);
-                .getNotificationScrimAlpha(expansionFraction, false /* notification */);
         boolean qsBottomVisible = qsPanelBottomY > 0;
         if (mQsExpansion != expansionFraction || mQsBottomVisible != qsBottomVisible) {
             mQsExpansion = expansionFraction;
@@ -915,8 +914,7 @@ public class ScrimController implements ViewTreeObserver.OnPreDrawListener, Dump
     }
 
     private float getInterpolatedFraction() {
-        return Interpolators.getNotificationScrimAlpha(
+        return ShadeInterpolation.getNotificationScrimAlpha(mPanelExpansionFraction);
-                mPanelExpansionFraction, false /* notification */);
     }
 
     private void setScrimAlpha(ScrimView scrim, float alpha) {

packages/SystemUI/src/com/android/systemui/statusbar/phone/SplitShadeHeaderController.kt

@@ -18,6 +18,7 @@ package com.android.systemui.statusbar.phone
 
 import android.view.View
 import com.android.systemui.R
+import com.android.systemui.animation.ShadeInterpolation
 import com.android.systemui.battery.BatteryMeterView
 import com.android.systemui.battery.BatteryMeterViewController
 import com.android.systemui.flags.FeatureFlags
@@ -53,6 +54,14 @@ class SplitShadeHeaderController @Inject constructor(
             updateVisibility()
         }
 
+    var shadeExpandedFraction = -1f
+        set(value) {
+            if (visible && field != value) {
+                statusBar.alpha = ShadeInterpolation.getContentAlpha(value)
+                field = value
+            }
+        }
+
     init {
         batteryMeterViewController.init()
         val batteryIcon: BatteryMeterView = statusBar.findViewById(R.id.batteryRemainingIcon)

packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationShadeDepthControllerTest.kt

@@ -24,7 +24,7 @@ import android.view.View
 import android.view.ViewRootImpl
 import androidx.test.filters.SmallTest
 import com.android.systemui.SysuiTestCase
-import com.android.systemui.animation.Interpolators
+import com.android.systemui.animation.ShadeInterpolation
 import com.android.systemui.dump.DumpManager
 import com.android.systemui.plugins.statusbar.StatusBarStateController
 import com.android.systemui.statusbar.phone.BiometricUnlockController
@@ -208,7 +208,7 @@ class NotificationShadeDepthControllerTest : SysuiTestCase() {
         notificationShadeDepthController.onPanelExpansionChanged(1f, tracking = false)
         notificationShadeDepthController.updateBlurCallback.doFrame(0)
         verify(wallpaperController).setNotificationShadeZoom(
-                eq(Interpolators.getNotificationScrimAlpha(0.25f, false /* notifications */)))
+                eq(ShadeInterpolation.getNotificationScrimAlpha(0.25f)))
     }
 
     @Test