Overview - update UI to use solid color scrim.

Also required updates to colors and status bar icons to match with new
color.

Bug: 179922117
Test: local build and flash on two devices

Change-Id: Ibec54107f52c01f125e6d100abe32434f2067b71
diff --git a/quickstep/res/values/styles.xml b/quickstep/res/values/styles.xml
index df089f6..e56397a 100644
--- a/quickstep/res/values/styles.xml
+++ b/quickstep/res/values/styles.xml
@@ -81,7 +81,7 @@
         parent="@android:style/Widget.DeviceDefault.Button.Borderless">
         <item name="android:textColor">@color/overview_button</item>
         <item name="android:drawableTint">@color/overview_button</item>
-        <item name="android:tint">?attr/workspaceTextColor</item>
+        <item name="android:tint">?android:attr/textColorPrimary</item>
         <item name="android:drawablePadding">8dp</item>
         <item name="android:textAllCaps">false</item>
     </style>
diff --git a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
index 43e70a3..b269901 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/states/OverviewState.java
@@ -105,7 +105,7 @@
 
     @Override
     public float getOverviewScrimAlpha(Launcher launcher) {
-        return 0.5f;
+        return 1f;
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/QuickSwitchTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/QuickSwitchTouchController.java
index fc9e1bb..a4518bd 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/QuickSwitchTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/QuickSwitchTouchController.java
@@ -137,14 +137,17 @@
 
     private void updateFullscreenProgress(float progress) {
         mOverviewPanel.setFullscreenProgress(progress);
-        int sysuiFlags = 0;
         if (progress > UPDATE_SYSUI_FLAGS_THRESHOLD) {
+            int sysuiFlags = 0;
             TaskView tv = mOverviewPanel.getTaskViewAt(0);
             if (tv != null) {
                 sysuiFlags = tv.getThumbnail().getSysUiStatusNavFlags();
             }
+            mLauncher.getSystemUiController().updateUiState(UI_STATE_OVERVIEW, sysuiFlags);
+        } else {
+            mLauncher.getSystemUiController().updateUiState(
+                    UI_STATE_OVERVIEW, mOverviewPanel.hasLightBackground());
         }
-        mLauncher.getSystemUiController().updateUiState(UI_STATE_OVERVIEW, sysuiFlags);
     }
 
     @Override
diff --git a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
index 1a5f9c2..6394131 100644
--- a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
+++ b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
@@ -91,7 +91,6 @@
 import com.android.launcher3.util.WindowBounds;
 import com.android.quickstep.BaseActivityInterface.AnimationFactory;
 import com.android.quickstep.GestureState.GestureEndTarget;
-import com.android.quickstep.inputconsumers.OverviewInputConsumer;
 import com.android.quickstep.util.ActiveGestureLog;
 import com.android.quickstep.util.ActivityInitListener;
 import com.android.quickstep.util.AnimatorControllerWithResistance;
@@ -654,8 +653,13 @@
                     ||  (quickswitchThresholdPassed && centermostTaskFlags != 0));
             mRecentsAnimationController.setSplitScreenMinimized(swipeUpThresholdPassed);
 
-            int sysuiFlags = swipeUpThresholdPassed ? 0 : centermostTaskFlags;
-            mActivity.getSystemUiController().updateUiState(UI_STATE_OVERVIEW, sysuiFlags);
+            if (swipeUpThresholdPassed) {
+                mActivity.getSystemUiController().updateUiState(
+                        UI_STATE_OVERVIEW, mRecentsView.hasLightBackground());
+            } else {
+                mActivity.getSystemUiController().updateUiState(
+                        UI_STATE_OVERVIEW, centermostTaskFlags);
+            }
         }
     }
 
diff --git a/quickstep/src/com/android/quickstep/RecentsActivity.java b/quickstep/src/com/android/quickstep/RecentsActivity.java
index d3ed791..1340abb 100644
--- a/quickstep/src/com/android/quickstep/RecentsActivity.java
+++ b/quickstep/src/com/android/quickstep/RecentsActivity.java
@@ -56,7 +56,6 @@
 import com.android.launcher3.util.ActivityTracker;
 import com.android.launcher3.util.RunnableList;
 import com.android.launcher3.util.SystemUiController;
-import com.android.launcher3.util.Themes;
 import com.android.launcher3.views.BaseDragLayer;
 import com.android.quickstep.fallback.FallbackRecentsStateController;
 import com.android.quickstep.fallback.FallbackRecentsView;
@@ -267,7 +266,7 @@
         setupViews();
 
         getSystemUiController().updateUiState(SystemUiController.UI_STATE_BASE_WINDOW,
-                Themes.getAttrBoolean(this, R.attr.isWorkspaceDarkText));
+                mFallbackRecentsView.hasLightBackground());
         ACTIVITY_TRACKER.handleCreate(this);
     }
 
diff --git a/quickstep/src/com/android/quickstep/SwipeUpAnimationLogic.java b/quickstep/src/com/android/quickstep/SwipeUpAnimationLogic.java
index f4b8b62..a8c09dc 100644
--- a/quickstep/src/com/android/quickstep/SwipeUpAnimationLogic.java
+++ b/quickstep/src/com/android/quickstep/SwipeUpAnimationLogic.java
@@ -29,7 +29,6 @@
 import androidx.annotation.UiThread;
 
 import com.android.launcher3.DeviceProfile;
-import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.anim.AnimatorPlaybackController;
@@ -67,8 +66,6 @@
     // How much further we can drag past recents, as a factor of mTransitionDragLength.
     protected float mDragLengthFactor = 1;
 
-    protected final float mMaxShadowRadius;
-
     protected AnimatorControllerWithResistance mWindowTransitionController;
 
     public SwipeUpAnimationLogic(Context context, RecentsAnimationDeviceState deviceState,
@@ -82,9 +79,6 @@
         mTaskViewSimulator.getOrientationState().update(
                 mDeviceState.getRotationTouchHelper().getCurrentActiveRotation(),
                 mDeviceState.getRotationTouchHelper().getDisplayRotation());
-
-        mMaxShadowRadius = context.getResources().getDimensionPixelSize(R.dimen.max_shadow_radius);
-        mTransformParams.setShadowRadius(mMaxShadowRadius);
     }
 
     protected void initTransitionEndpoints(DeviceProfile dp) {
@@ -271,11 +265,9 @@
 
             mMatrix.setRectToRect(mCropRectF, mWindowCurrentRect, ScaleToFit.FILL);
             float cornerRadius = Utilities.mapRange(progress, mStartRadius, mEndRadius);
-            float shadowRadius = Utilities.mapRange(progress, mMaxShadowRadius, 0);
             mTransformParams
                     .setTargetAlpha(getWindowAlpha(progress))
-                    .setCornerRadius(cornerRadius)
-                    .setShadowRadius(shadowRadius);
+                    .setCornerRadius(cornerRadius);
 
             mTransformParams.applySurfaceParams(mTransformParams.createSurfaceParams(this));
             mAnimationFactory.update(currentRect, progress, mMatrix.mapRadius(cornerRadius));
@@ -286,8 +278,7 @@
                 Builder builder, RemoteAnimationTargetCompat app, TransformParams params) {
             builder.withMatrix(mMatrix)
                     .withWindowCrop(mCropRect)
-                    .withCornerRadius(params.getCornerRadius())
-                    .withShadowRadius(app.isTranslucent ? 0 : params.getShadowRadius());
+                    .withCornerRadius(params.getCornerRadius());
         }
 
         @Override
diff --git a/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java b/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java
index 6cfe302..3c8a12c 100644
--- a/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java
+++ b/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java
@@ -330,8 +330,7 @@
             Builder builder, RemoteAnimationTargetCompat app, TransformParams params) {
         builder.withMatrix(mMatrix)
                 .withWindowCrop(mTmpCropRect)
-                .withCornerRadius(getCurrentCornerRadius())
-                .withShadowRadius(app.isTranslucent ? 0 : params.getShadowRadius());
+                .withCornerRadius(getCurrentCornerRadius());
 
         if (LIVE_TILE.get() && params.getRecentsSurface() != null) {
             // When relativeLayer = 0, it reverts the surfaces back to the original order.
diff --git a/quickstep/src/com/android/quickstep/util/TransformParams.java b/quickstep/src/com/android/quickstep/util/TransformParams.java
index cdf5163..756331d 100644
--- a/quickstep/src/com/android/quickstep/util/TransformParams.java
+++ b/quickstep/src/com/android/quickstep/util/TransformParams.java
@@ -57,7 +57,6 @@
     private float mProgress;
     private float mTargetAlpha;
     private float mCornerRadius;
-    private float mShadowRadius;
     private RemoteAnimationTargets mTargetSet;
     private SurfaceTransactionApplier mSyncTransactionApplier;
     private SurfaceControl mRecentsSurface;
@@ -69,7 +68,6 @@
         mProgress = 0;
         mTargetAlpha = 1;
         mCornerRadius = -1;
-        mShadowRadius = 0;
     }
 
     /**
@@ -93,14 +91,6 @@
     }
 
     /**
-     * Sets the shadow radius of the transformed window, in pixels.
-     */
-    public TransformParams setShadowRadius(float shadowRadius) {
-        mShadowRadius = shadowRadius;
-        return this;
-    }
-
-    /**
      * Specifies the alpha of the transformed window. Default is 1.
      */
     public TransformParams setTargetAlpha(float targetAlpha) {
@@ -207,10 +197,6 @@
         return mCornerRadius;
     }
 
-    public float getShadowRadius() {
-        return mShadowRadius;
-    }
-
     public SurfaceControl getRecentsSurface() {
         return mRecentsSurface;
     }
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index a35580f..7a1076c 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -439,6 +439,7 @@
 
     private boolean mRunningTaskIconScaledDown = false;
 
+    private final boolean mHasLightBackground;
     private boolean mOverviewStateEnabled;
     private boolean mHandleTaskStackChanges;
     private boolean mSwipeDownShouldLaunchApp;
@@ -570,6 +571,8 @@
         mLiveTileTaskViewSimulator.recentsViewScale.value = 1;
         mLiveTileTaskViewSimulator.setOrientationState(mOrientationState);
         mLiveTileTaskViewSimulator.setDrawsBelowRecents(true);
+
+        mHasLightBackground = Themes.getAttrBoolean(mActivity, android.R.attr.isLightTheme);
     }
 
     public OverScroller getScroller() {
@@ -847,6 +850,13 @@
                 cancelSplitSelect(false);
             }
         }
+
+        if (enabled) {
+            mActivity.getSystemUiController().updateUiState(
+                    UI_STATE_OVERVIEW, hasLightBackground());
+        } else {
+            mActivity.getSystemUiController().updateUiState(UI_STATE_OVERVIEW, 0);
+        }
     }
 
     public void onDigitalWellbeingToastShown() {
@@ -2515,6 +2525,14 @@
         }
     }
 
+    /**
+     * True if the background scrim of the recents view is light colored and the foreground elements
+     * should use dark colors.
+     */
+    public boolean hasLightBackground() {
+        return mHasLightBackground;
+    }
+
     public void initiateSplitSelect(TaskView taskView, SplitPositionOption splitPositionOption) {
         mSplitHiddenTaskView = taskView;
         mSplitPlaceholderView.getSplitController().setInitialTaskSelect(taskView,
@@ -2759,10 +2777,13 @@
         progressAnim.addUpdateListener(animator -> {
             // Once we pass a certain threshold, update the sysui flags to match the target
             // tasks' flags
-            mActivity.getSystemUiController().updateUiState(UI_STATE_OVERVIEW,
-                    animator.getAnimatedFraction() > UPDATE_SYSUI_FLAGS_THRESHOLD
-                            ? targetSysUiFlags
-                            : 0);
+            if (animator.getAnimatedFraction() > UPDATE_SYSUI_FLAGS_THRESHOLD) {
+                mActivity.getSystemUiController().updateUiState(
+                        UI_STATE_OVERVIEW, targetSysUiFlags);
+            } else {
+                mActivity.getSystemUiController().updateUiState(
+                        UI_STATE_OVERVIEW, hasLightBackground());
+            }
 
             // Passing the threshold from taskview to fullscreen app will vibrate
             final boolean passed = animator.getAnimatedFraction() >=
diff --git a/res/color/overview_button.xml b/res/color/overview_button.xml
index 6ac36bf..aa48b78 100644
--- a/res/color/overview_button.xml
+++ b/res/color/overview_button.xml
@@ -2,10 +2,10 @@
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
     <item
         android:alpha="1"
-        android:color="?attr/workspaceTextColor"
+        android:color="?android:attr/textColorPrimary"
         android:state_enabled="true" />
     <item
         android:alpha="?android:disabledAlpha"
-        android:color="?attr/workspaceTextColor"
+        android:color="?android:attr/textColorPrimary"
         android:state_enabled="false" />
 </selector>
\ No newline at end of file
diff --git a/src/com/android/launcher3/graphics/OverviewScrim.java b/src/com/android/launcher3/graphics/OverviewScrim.java
index 53303db..7d52744 100644
--- a/src/com/android/launcher3/graphics/OverviewScrim.java
+++ b/src/com/android/launcher3/graphics/OverviewScrim.java
@@ -25,6 +25,10 @@
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
+import com.android.launcher3.R;
+import com.android.launcher3.uioverrides.WallpaperColorInfo;
+import com.android.launcher3.util.Themes;
+
 /**
  * View scrim which draws behind overview (recent apps).
  */
@@ -52,7 +56,7 @@
     public OverviewScrim(View view) {
         super(view);
 
-        onExtractedColorsChanged(mWallpaperColorInfo);
+        mScrimColor = Themes.getAttrColor(view.getContext(), R.attr.allAppsScrimColor);
     }
 
     /**
@@ -74,6 +78,11 @@
         }
     }
 
+    @Override
+    public void onExtractedColorsChanged(WallpaperColorInfo wallpaperColorInfo) {
+        // No super, don't respond to wallpaper colors, follow device ones instead
+    }
+
     /**
      * @return The view to draw the scrim behind, or null if all visible views should be scrimmed.
      */