Merge "Add wallpaper zoom to areas that have blur" into ub-launcher3-master

quickstep/recents_ui_overrides/res/values/config.xml

@@ -14,8 +14,5 @@
      limitations under the License.
 -->
 <resources>
-    <integer name="app_background_blur_radius">150</integer>
-    <integer name="allapps_background_blur_radius">90</integer>
-    <integer name="overview_background_blur_radius">50</integer>
-    <integer name="folder_background_blur_radius_adjustment">20</integer>
+    <integer name="max_depth_blur_radius">150</integer>
 </resources>

quickstep/recents_ui_overrides/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java

@@ -91,7 +91,7 @@ public final class LauncherAppTransitionManagerImpl extends QuickstepAppTransiti
         AppWindowAnimationHelper helper =
             new AppWindowAnimationHelper(recentsView.getPagedViewOrientedState(), mLauncher);
         Animator recentsAnimator = getRecentsWindowAnimator(taskView, skipLauncherChanges,
-                appTargets, wallpaperTargets, mLauncher.getBackgroundBlurController(), helper);
+                appTargets, wallpaperTargets, mLauncher.getDepthController(), helper);
         anim.play(recentsAnimator.setDuration(RECENTS_LAUNCH_DURATION));
 
         Animator childStateAnimation = null;

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/BackgroundAppState.java

@@ -19,7 +19,6 @@ import android.content.Context;
 
 import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.Launcher;
-import com.android.launcher3.R;
 import com.android.launcher3.allapps.AllAppsTransitionController;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.quickstep.util.LayoutUtils;
@@ -107,7 +106,7 @@ public class BackgroundAppState extends OverviewState {
     }
 
     @Override
-    public int getBackgroundBlurRadius(Context context) {
-        return context.getResources().getInteger(R.integer.app_background_blur_radius);
+    public float getDepth(Context context) {
+        return 1f;
     }
 }

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/OverviewState.java

@@ -207,8 +207,8 @@ public class OverviewState extends LauncherState {
     }
 
     @Override
-    public int getBackgroundBlurRadius(Context context) {
-        return context.getResources().getInteger(R.integer.overview_background_blur_radius);
+    public float getDepth(Context context) {
+        return 1f;
     }
 
     @Override

quickstep/recents_ui_overrides/src/com/android/quickstep/AppToOverviewAnimationProvider.java

@@ -19,7 +19,7 @@ import static com.android.launcher3.LauncherState.BACKGROUND_APP;
 import static com.android.launcher3.LauncherState.OVERVIEW;
 import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
 import static com.android.launcher3.anim.Interpolators.TOUCH_RESPONSE_INTERPOLATOR;
-import static com.android.launcher3.uioverrides.BackgroundBlurController.BACKGROUND_BLUR;
+import static com.android.launcher3.uioverrides.DepthController.DEPTH;
 import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MODE_CLOSING;
 import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MODE_OPENING;
 
@@ -34,7 +34,7 @@ import android.view.View;
 import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.anim.AnimationSuccessListener;
-import com.android.launcher3.uioverrides.BackgroundBlurController;
+import com.android.launcher3.uioverrides.DepthController;
 import com.android.quickstep.util.AppWindowAnimationHelper;
 import com.android.quickstep.util.AppWindowAnimationHelper.TransformParams;
 import com.android.quickstep.util.RemoteAnimationProvider;
@@ -105,10 +105,10 @@ final class AppToOverviewAnimationProvider<T extends BaseDraggingActivity> exten
             mRecentsView.setRunningTaskIconScaledDown(true);
         }
 
-        BackgroundBlurController blurController = mActivityInterface.getBackgroundBlurController();
-        if (blurController != null) {
+        DepthController depthController = mActivityInterface.getDepthController();
+        if (depthController != null) {
             // Update the surface to be the lowest closing app surface
-            blurController.setSurfaceToLauncher(mRecentsView);
+            depthController.setSurfaceToLauncher(mRecentsView);
         }
 
         AnimatorSet anim = new AnimatorSet();
@@ -124,7 +124,7 @@ final class AppToOverviewAnimationProvider<T extends BaseDraggingActivity> exten
         if (mActivity == null) {
             Log.e(TAG, "Animation created, before activity");
             anim.play(ValueAnimator.ofInt(0, 1).setDuration(RECENTS_LAUNCH_DURATION))
-                    .with(createBackgroundBlurAnimator(blurController));
+                    .with(createDepthAnimator(depthController));
             return anim;
         }
 
@@ -136,7 +136,7 @@ final class AppToOverviewAnimationProvider<T extends BaseDraggingActivity> exten
         if (runningTaskTarget == null) {
             Log.e(TAG, "No closing app");
             anim.play(ValueAnimator.ofInt(0, 1).setDuration(RECENTS_LAUNCH_DURATION))
-                    .with(createBackgroundBlurAnimator(blurController));
+                    .with(createDepthAnimator(depthController));
             return anim;
         }
 
@@ -184,7 +184,7 @@ final class AppToOverviewAnimationProvider<T extends BaseDraggingActivity> exten
             });
         }
         anim.play(valueAnimator)
-                .with(createBackgroundBlurAnimator(blurController));
+                .with(createDepthAnimator(depthController));
         return anim;
     }
 
@@ -197,14 +197,14 @@ final class AppToOverviewAnimationProvider<T extends BaseDraggingActivity> exten
         return RECENTS_LAUNCH_DURATION;
     }
 
-    private Animator createBackgroundBlurAnimator(BackgroundBlurController blurController) {
-        if (blurController == null) {
+    private Animator createDepthAnimator(DepthController depthController) {
+        if (depthController == null) {
             // Dummy animation
             return ValueAnimator.ofInt(0);
         }
-        return ObjectAnimator.ofInt(blurController, BACKGROUND_BLUR,
-                BACKGROUND_APP.getBackgroundBlurRadius(mActivity),
-                OVERVIEW.getBackgroundBlurRadius(mActivity))
+        return ObjectAnimator.ofFloat(depthController, DEPTH,
+                BACKGROUND_APP.getDepth(mActivity),
+                OVERVIEW.getDepth(mActivity))
                 .setDuration(RECENTS_LAUNCH_DURATION);
     }
 }

quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityInterface.java

@@ -56,8 +56,8 @@ import com.android.launcher3.allapps.DiscoveryBounce;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.appprediction.PredictionUiStateManager;
 import com.android.launcher3.touch.PagedOrientationHandler;
-import com.android.launcher3.uioverrides.BackgroundBlurController;
-import com.android.launcher3.uioverrides.BackgroundBlurController.ClampedBlurProperty;
+import com.android.launcher3.uioverrides.DepthController;
+import com.android.launcher3.uioverrides.DepthController.ClampedDepthProperty;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.views.FloatingIconView;
 import com.android.quickstep.SysUINavigationMode.Mode;
@@ -330,18 +330,17 @@ public final class LauncherActivityInterface implements BaseActivityInterface<La
                     endState.getVerticalProgress(activity)));
         }
 
-        // Animate the blur
-        BackgroundBlurController blurController = getBackgroundBlurController();
-        int fromBlurRadius = fromState.getBackgroundBlurRadius(activity);
-        int toBlurRadius = endState.getBackgroundBlurRadius(activity);
-        Animator backgroundBlur = ObjectAnimator.ofInt(blurController,
-                new ClampedBlurProperty(toBlurRadius, fromBlurRadius),
-                fromBlurRadius, toBlurRadius);
-        anim.play(backgroundBlur);
+        // Animate the blur and wallpaper zoom
+        DepthController depthController = getDepthController();
+        float fromDepthRatio = fromState.getDepth(activity);
+        float toDepthRatio = endState.getDepth(activity);
+        Animator depthAnimator = ObjectAnimator.ofFloat(depthController,
+                new ClampedDepthProperty(fromDepthRatio, toDepthRatio),
+                fromDepthRatio, toDepthRatio);
+        anim.play(depthAnimator);
 
         playScaleDownAnim(anim, activity, fromState, endState);
 
-
         anim.setDuration(transitionLength * 2);
         anim.setInterpolator(LINEAR);
         AnimatorPlaybackController controller =
@@ -558,11 +557,11 @@ public final class LauncherActivityInterface implements BaseActivityInterface<La
 
     @Nullable
     @Override
-    public BackgroundBlurController getBackgroundBlurController() {
+    public DepthController getDepthController() {
         BaseQuickstepLauncher launcher = getCreatedActivity();
         if (launcher == null) {
             return null;
         }
-        return launcher.getBackgroundBlurController();
+        return launcher.getDepthController();
     }
 }

quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java

@@ -294,7 +294,7 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
         }
 
         setupRecentsViewUi();
-        mActivityInterface.getBackgroundBlurController().setSurfaceToLauncher(mRecentsView);
+        mActivityInterface.getDepthController().setSurfaceToLauncher(mRecentsView);
 
         if (mDeviceState.getNavMode() == TWO_BUTTONS) {
             // If the device is in two button mode, swiping up will show overview with predictions

quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsActivity.java

@@ -186,7 +186,7 @@ public final class RecentsActivity extends BaseRecentsActivity {
         AppWindowAnimationHelper helper = new AppWindowAnimationHelper(
             mFallbackRecentsView.getPagedViewOrientedState(), this);
         Animator recentsAnimator = getRecentsWindowAnimator(taskView, !activityClosing, appTargets,
-                wallpaperTargets, null /* backgroundBlurController */,
+                wallpaperTargets, null /* depthController */,
                 helper);
         target.play(recentsAnimator.setDuration(RECENTS_LAUNCH_DURATION));
 

quickstep/recents_ui_overrides/src/com/android/quickstep/TaskViewUtils.java

@@ -19,7 +19,7 @@ import static com.android.launcher3.LauncherState.BACKGROUND_APP;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.anim.Interpolators.TOUCH_RESPONSE_INTERPOLATOR;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
-import static com.android.launcher3.uioverrides.BackgroundBlurController.BACKGROUND_BLUR;
+import static com.android.launcher3.uioverrides.DepthController.DEPTH;
 import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MODE_OPENING;
 
 import android.animation.Animator;
@@ -35,7 +35,7 @@ import com.android.launcher3.BaseActivity;
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.Utilities;
-import com.android.launcher3.uioverrides.BackgroundBlurController;
+import com.android.launcher3.uioverrides.DepthController;
 import com.android.quickstep.util.AppWindowAnimationHelper;
 import com.android.quickstep.util.MultiValueUpdateListener;
 import com.android.quickstep.views.RecentsView;
@@ -123,7 +123,7 @@ public final class TaskViewUtils {
     public static Animator getRecentsWindowAnimator(TaskView v, boolean skipViewChanges,
             RemoteAnimationTargetCompat[] appTargets,
             RemoteAnimationTargetCompat[] wallpaperTargets,
-            BackgroundBlurController backgroundBlurController,
+            DepthController depthController,
             final AppWindowAnimationHelper inOutHelper) {
         SyncRtSurfaceTransactionApplierCompat applier =
                 new SyncRtSurfaceTransactionApplierCompat(v);
@@ -215,9 +215,9 @@ public final class TaskViewUtils {
             }
         });
 
-        if (backgroundBlurController != null) {
-            ObjectAnimator backgroundRadiusAnim = ObjectAnimator.ofInt(backgroundBlurController,
-                    BACKGROUND_BLUR, BACKGROUND_APP.getBackgroundBlurRadius(v.getContext()));
+        if (depthController != null) {
+            ObjectAnimator backgroundRadiusAnim = ObjectAnimator.ofFloat(depthController,
+                    DEPTH, BACKGROUND_APP.getDepth(v.getContext()));
             animatorSet.playTogether(appAnimator, backgroundRadiusAnim);
         } else {
             animatorSet.play(appAnimator);

quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java

@@ -46,9 +46,9 @@ import com.android.launcher3.R;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.appprediction.PredictionUiStateManager;
 import com.android.launcher3.appprediction.PredictionUiStateManager.Client;
-import com.android.launcher3.states.RotationHelper;
-import com.android.launcher3.uioverrides.BackgroundBlurController;
 import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.states.RotationHelper;
+import com.android.launcher3.uioverrides.DepthController;
 import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
 import com.android.launcher3.util.TraceHelper;
 import com.android.launcher3.views.ScrimView;
@@ -409,7 +409,7 @@ public class LauncherRecentsView extends RecentsView<Launcher> implements StateL
     }
 
     @Override
-    protected BackgroundBlurController getBackgroundBlurController() {
-        return mActivity.getBackgroundBlurController();
+    protected DepthController getDepthController() {
+        return mActivity.getDepthController();
     }
 }

quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java

@@ -29,7 +29,7 @@ import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_OVERVIEW_ACTIONS;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
-import static com.android.launcher3.uioverrides.BackgroundBlurController.BACKGROUND_BLUR;
+import static com.android.launcher3.uioverrides.DepthController.DEPTH;
 import static com.android.launcher3.uioverrides.touchcontrollers.TaskViewTouchController.SUCCESS_TRANSITION_PROGRESS;
 import static com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch.TAP;
 import static com.android.launcher3.userevent.nano.LauncherLogProto.ControlType.CLEAR_ALL_BUTTON;
@@ -97,7 +97,7 @@ import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.graphics.RotationMode;
 import com.android.launcher3.states.RotationHelper;
 import com.android.launcher3.touch.PagedOrientationHandler.CurveProperties;
-import com.android.launcher3.uioverrides.BackgroundBlurController;
+import com.android.launcher3.uioverrides.DepthController;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Direction;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
@@ -1702,11 +1702,11 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
         appWindowAnimationHelper.prepareAnimation(mActivity.getDeviceProfile(), true /* isOpening */);
         AnimatorSet anim = createAdjacentPageAnimForTaskLaunch(tv, appWindowAnimationHelper);
 
-        BackgroundBlurController blurController = getBackgroundBlurController();
-        if (blurController != null) {
-            ObjectAnimator backgroundBlur = ObjectAnimator.ofInt(blurController, BACKGROUND_BLUR,
-                    BACKGROUND_APP.getBackgroundBlurRadius(mActivity));
-            anim.play(backgroundBlur);
+        DepthController depthController = getDepthController();
+        if (depthController != null) {
+            ObjectAnimator depthAnimator = ObjectAnimator.ofFloat(depthController, DEPTH,
+                    BACKGROUND_APP.getDepth(mActivity));
+            anim.play(depthAnimator);
         }
         anim.play(progressAnim);
         anim.setDuration(duration).setInterpolator(interpolator);
@@ -2009,7 +2009,7 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
     }
 
     @Nullable
-    protected BackgroundBlurController getBackgroundBlurController() {
+    protected DepthController getDepthController() {
         return null;
     }
 

quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java

@@ -244,7 +244,7 @@ public abstract class BaseQuickstepLauncher extends Launcher
         return new StateHandler[] {
                 getAllAppsController(),
                 getWorkspace(),
-                getBackgroundBlurController(),
+                getDepthController(),
                 new RecentsViewStateController(this),
                 new BackButtonAlphaHandler(this)};
     }

quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java

@@ -33,7 +33,7 @@ import static com.android.launcher3.anim.Interpolators.EXAGGERATED_EASE;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.config.FeatureFlags.KEYGUARD_ANIMATION;
 import static com.android.launcher3.dragndrop.DragLayer.ALPHA_INDEX_TRANSITIONS;
-import static com.android.launcher3.uioverrides.BackgroundBlurController.BACKGROUND_BLUR;
+import static com.android.launcher3.uioverrides.DepthController.DEPTH;
 import static com.android.launcher3.views.FloatingIconView.SHAPE_PROGRESS_DURATION;
 import static com.android.quickstep.TaskUtils.taskIsATargetWithMode;
 import static com.android.systemui.shared.system.QuickStepContract.getWindowCornerRadius;
@@ -73,7 +73,7 @@ import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.shortcuts.DeepShortcutView;
-import com.android.launcher3.uioverrides.BackgroundBlurController;
+import com.android.launcher3.uioverrides.DepthController;
 import com.android.launcher3.util.DynamicResource;
 import com.android.launcher3.util.MultiValueAlpha;
 import com.android.launcher3.util.MultiValueAlpha.AlphaProperty;
@@ -596,17 +596,17 @@ public abstract class QuickstepAppTransitionManagerImpl extends LauncherAppTrans
         // When launching an app from overview that doesn't map to a task, we still want to just
         // blur the wallpaper instead of the launcher surface as well
         boolean allowBlurringLauncher = mLauncher.getStateManager().getState() != OVERVIEW;
-        BackgroundBlurController blurController = mLauncher.getBackgroundBlurController();
-        ObjectAnimator backgroundRadiusAnim = ObjectAnimator.ofInt(blurController, BACKGROUND_BLUR,
-                BACKGROUND_APP.getBackgroundBlurRadius(mLauncher))
+        DepthController depthController = mLauncher.getDepthController();
+        ObjectAnimator backgroundRadiusAnim = ObjectAnimator.ofFloat(depthController, DEPTH,
+                BACKGROUND_APP.getDepth(mLauncher))
                 .setDuration(APP_LAUNCH_DURATION);
         if (allowBlurringLauncher) {
-            blurController.setSurfaceToApp(RemoteAnimationProvider.findLowestOpaqueLayerTarget(
+            depthController.setSurfaceToApp(RemoteAnimationProvider.findLowestOpaqueLayerTarget(
                     appTargets, MODE_OPENING));
             backgroundRadiusAnim.addListener(new AnimatorListenerAdapter() {
                 @Override
                 public void onAnimationEnd(Animator animation) {
-                    blurController.setSurfaceToLauncher(mLauncher.getDragLayer());
+                    depthController.setSurfaceToLauncher(mLauncher.getDragLayer());
                 }
             });
         }

quickstep/src/com/android/launcher3/uioverrides/DepthController.java

@@ -18,7 +18,8 @@ package com.android.launcher3.uioverrides;
 
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 
-import android.util.IntProperty;
+import android.os.IBinder;
+import android.util.FloatProperty;
 import android.view.View;
 
 import com.android.launcher3.Launcher;
@@ -31,22 +32,23 @@ import com.android.launcher3.states.StateAnimationConfig;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 import com.android.systemui.shared.system.SurfaceControlCompat;
 import com.android.systemui.shared.system.TransactionCompat;
+import com.android.systemui.shared.system.WallpaperManagerCompat;
 
 /**
- * Controls the blur, for the Launcher surface only.
+ * Controls blur and wallpaper zoom, for the Launcher surface only.
  */
-public class BackgroundBlurController implements LauncherStateManager.StateHandler {
+public class DepthController implements LauncherStateManager.StateHandler {
 
-    public static final IntProperty<BackgroundBlurController> BACKGROUND_BLUR =
-            new IntProperty<BackgroundBlurController>("backgroundBlur") {
+    public static final FloatProperty<DepthController> DEPTH =
+            new FloatProperty<DepthController>("depth") {
                 @Override
-                public void setValue(BackgroundBlurController blurController, int blurRadius) {
-                    blurController.setBackgroundBlurRadius(blurRadius);
+                public void setValue(DepthController depthController, float depth) {
+                    depthController.setDepth(depth);
                 }
 
                 @Override
-                public Integer get(BackgroundBlurController blurController) {
-                    return blurController.mBackgroundBlurRadius;
+                public Float get(DepthController depthController) {
+                    return depthController.mDepth;
                 }
             };
 
@@ -54,42 +56,50 @@ public class BackgroundBlurController implements LauncherStateManager.StateHandl
      * A property that updates the background blur within a given range of values (ie. even if the
      * animator goes beyond 0..1, the interpolated value will still be bounded).
      */
-    public static class ClampedBlurProperty extends IntProperty<BackgroundBlurController> {
-        private final int mMinValue;
-        private final int mMaxValue;
+    public static class ClampedDepthProperty extends FloatProperty<DepthController> {
+        private final float mMinValue;
+        private final float mMaxValue;
 
-        public ClampedBlurProperty(int minValue, int maxValue) {
-            super(("backgroundBlurClamped"));
+        public ClampedDepthProperty(float minValue, float maxValue) {
+            super("depthClamped");
             mMinValue = minValue;
             mMaxValue = maxValue;
         }
 
         @Override
-        public void setValue(BackgroundBlurController blurController, int blurRadius) {
-            blurController.setBackgroundBlurRadius(Utilities.boundToRange(blurRadius,
-                    mMinValue, mMaxValue));
+        public void setValue(DepthController depthController, float depth) {
+            depthController.setDepth(Utilities.boundToRange(depth, mMinValue, mMaxValue));
         }
 
         @Override
-        public Integer get(BackgroundBlurController blurController) {
-            return blurController.mBackgroundBlurRadius;
+        public Float get(DepthController depthController) {
+            return depthController.mDepth;
         }
     }
 
     private final Launcher mLauncher;
+    /**
+     * Blur radius when completely zoomed out, in pixels.
+     */
+    private int mMaxBlurRadius;
+    private WallpaperManagerCompat mWallpaperManager;
     private SurfaceControlCompat mSurface;
-    private int mBackgroundBlurRadius;
+    /**
+     * Ratio from 0 to 1, where 0 is fully zoomed out, and 1 is zoomed in.
+     * @see android.service.wallpaper.WallpaperService.Engine#onZoomChanged(float)
+     */
+    private float mDepth;
 
-    public BackgroundBlurController(Launcher l) {
+    public DepthController(Launcher l) {
         mLauncher = l;
     }
 
-    /**
-     * @return the background blur adjustment for folders
-     */
-    public int getFolderBackgroundBlurAdjustment() {
-        return mLauncher.getResources().getInteger(
-                R.integer.folder_background_blur_radius_adjustment);
+    private void ensureDependencies() {
+        if (mWallpaperManager != null) {
+            return;
+        }
+        mMaxBlurRadius = mLauncher.getResources().getInteger(R.integer.max_depth_blur_radius);
+        mWallpaperManager = new WallpaperManagerCompat(mLauncher);
     }
 
     /**
@@ -112,10 +122,10 @@ public class BackgroundBlurController implements LauncherStateManager.StateHandl
         if (mSurface != surface) {
             mSurface = surface;
             if (surface != null) {
-                setBackgroundBlurRadius(mBackgroundBlurRadius);
+                setDepth(mDepth);
             } else {
-                // If there is no surface, then reset the blur radius
-                setBackgroundBlurRadius(0);
+                // If there is no surface, then reset the ratio
+                setDepth(0f);
             }
         }
     }
@@ -126,9 +136,9 @@ public class BackgroundBlurController implements LauncherStateManager.StateHandl
             return;
         }
 
-        int toBackgroundBlurRadius = toState.getBackgroundBlurRadius(mLauncher);
-        if (mBackgroundBlurRadius != toBackgroundBlurRadius) {
-            setBackgroundBlurRadius(toBackgroundBlurRadius);
+        float toDepth = toState.getDepth(mLauncher);
+        if (Float.compare(mDepth, toDepth) != 0) {
+            setDepth(toDepth);
         }
     }
 
@@ -139,22 +149,24 @@ public class BackgroundBlurController implements LauncherStateManager.StateHandl
             return;
         }
 
-        int toBackgroundBlurRadius = toState.getBackgroundBlurRadius(mLauncher);
-        if (mBackgroundBlurRadius != toBackgroundBlurRadius) {
-            animation.setInt(this, BACKGROUND_BLUR, toBackgroundBlurRadius, LINEAR);
+        float toDepth = toState.getDepth(mLauncher);
+        if (Float.compare(mDepth, toDepth) != 0) {
+            animation.setFloat(this, DEPTH, toDepth, LINEAR);
         }
     }
 
-    private void setBackgroundBlurRadius(int blurRadius) {
-        // TODO: Do nothing if the shadows are not enabled
-        // Always update the background blur as it will be reapplied when a surface is next
-        // available
-        mBackgroundBlurRadius = blurRadius;
+    private void setDepth(float depth) {
+        mDepth = depth;
         if (mSurface == null || !mSurface.isValid()) {
             return;
         }
+        ensureDependencies();
+        IBinder windowToken = mLauncher.getRootView().getWindowToken();
+        if (windowToken != null) {
+            mWallpaperManager.setWallpaperZoomOut(windowToken, mDepth);
+        }
         new TransactionCompat()
-                .setBackgroundBlurRadius(mSurface, blurRadius)
+                .setBackgroundBlurRadius(mSurface, (int) (mDepth * mMaxBlurRadius))
                 .apply();
     }
 }

quickstep/src/com/android/launcher3/uioverrides/states/AllAppsState.java

@@ -22,7 +22,6 @@ import android.content.Context;
 import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.R;
 import com.android.launcher3.allapps.AllAppsContainerView;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.quickstep.SysUINavigationMode;
@@ -88,8 +87,8 @@ public class AllAppsState extends LauncherState {
     }
 
     @Override
-    public int getBackgroundBlurRadius(Context context) {
-        return context.getResources().getInteger(R.integer.allapps_background_blur_radius);
+    public float getDepth(Context context) {
+        return 1f;
     }
 
     @Override

quickstep/src/com/android/quickstep/BaseActivityInterface.java

@@ -33,7 +33,7 @@ import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.touch.PagedOrientationHandler;
-import com.android.launcher3.uioverrides.BackgroundBlurController;
+import com.android.launcher3.uioverrides.DepthController;
 import com.android.quickstep.util.ActivityInitListener;
 import com.android.quickstep.util.ShelfPeekAnim;
 import com.android.systemui.shared.recents.model.ThumbnailData;
@@ -81,7 +81,8 @@ public interface BaseActivityInterface<T extends BaseDraggingActivity> {
     @Nullable
     T getCreatedActivity();
 
-    default @Nullable BackgroundBlurController getBackgroundBlurController() {
+    @Nullable
+    default DepthController getDepthController() {
         return null;
     }
 

src/com/android/launcher3/Launcher.java

@@ -124,7 +124,7 @@ import com.android.launcher3.testing.TestLogging;
 import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.touch.AllAppsSwipeController;
 import com.android.launcher3.touch.ItemClickHandler;
-import com.android.launcher3.uioverrides.BackgroundBlurController;
+import com.android.launcher3.uioverrides.DepthController;
 import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
@@ -326,14 +326,14 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
     private boolean mDeferOverlayCallbacks;
     private final Runnable mDeferredOverlayCallbacks = this::checkIfOverlayStillDeferred;
 
-    private BackgroundBlurController mBackgroundBlurController =
-            new BackgroundBlurController(this);
+    private DepthController mDepthController =
+            new DepthController(this);
 
     private final ViewTreeObserver.OnDrawListener mOnDrawListener =
             new ViewTreeObserver.OnDrawListener() {
                 @Override
                 public void onDraw() {
-                    getBackgroundBlurController().setSurfaceToLauncher(mDragLayer);
+                    getDepthController().setSurfaceToLauncher(mDragLayer);
                     mDragLayer.post(() -> mDragLayer.getViewTreeObserver().removeOnDrawListener(
                             this));
                 }
@@ -956,7 +956,7 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
 
         NotificationListener.removeNotificationsChangedListener();
         getStateManager().moveToRestState();
-        getBackgroundBlurController().setSurfaceToLauncher(null);
+        getDepthController().setSurfaceToLauncher(null);
 
         // Workaround for b/78520668, explicitly trim memory once UI is hidden
         onTrimMemory(TRIM_MEMORY_UI_HIDDEN);
@@ -2717,7 +2717,7 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
 
     protected StateHandler[] createStateHandlers() {
         return new StateHandler[] { getAllAppsController(), getWorkspace(),
-                getBackgroundBlurController() };
+                getDepthController() };
     }
 
     public TouchController[] createTouchControllers() {
@@ -2754,8 +2754,8 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
         return Stream.of(APP_INFO, WIDGETS, INSTALL);
     }
 
-    public BackgroundBlurController getBackgroundBlurController() {
-        return mBackgroundBlurController;
+    public DepthController getDepthController() {
+        return mDepthController;
     }
 
     public static Launcher getLauncher(Context context) {

src/com/android/launcher3/LauncherState.java

@@ -271,11 +271,13 @@ public abstract class LauncherState {
     }
 
     /**
-     * The amount of blur to apply to the background of either the app or Launcher surface in this
-     * state.
+     * The amount of blur and wallpaper zoom to apply to the background of either the app
+     * or Launcher surface in this state. Should be a number between 0 and 1, inclusive.
+     *
+     * 0 means completely zoomed in, without blurs. 1 is zoomed out, with blurs.
      */
-    public int getBackgroundBlurRadius(Context context) {
-        return 0;
+    public float getDepth(Context context) {
+        return 0f;
     }
 
     public String getDescription(Launcher launcher) {

src/com/android/launcher3/folder/FolderAnimationManager.java

@@ -21,7 +21,6 @@ import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
 import static com.android.launcher3.folder.ClippedFolderIconLayoutRule.MAX_NUM_ITEMS_IN_PREVIEW;
 import static com.android.launcher3.graphics.IconShape.getShape;
 import static com.android.launcher3.icons.GraphicsUtils.setColorAlphaBound;
-import static com.android.launcher3.uioverrides.BackgroundBlurController.BACKGROUND_BLUR;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
@@ -47,7 +46,6 @@ import com.android.launcher3.ShortcutAndWidgetContainer;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.PropertyResetListener;
 import com.android.launcher3.dragndrop.DragLayer;
-import com.android.launcher3.uioverrides.BackgroundBlurController;
 import com.android.launcher3.util.Themes;
 
 import java.util.List;
@@ -222,14 +220,6 @@ public class FolderAnimationManager {
         Animator z = getAnimator(mFolder, View.TRANSLATION_Z, -mFolder.getElevation(), 0);
         play(a, z, mIsOpening ? midDuration : 0, midDuration);
 
-        BackgroundBlurController blurController = mLauncher.getBackgroundBlurController();
-        int stateBackgroundBlur = mLauncher.getStateManager().getState()
-                .getBackgroundBlurRadius(mLauncher);
-        int folderBackgroundBlurAdjustment = blurController.getFolderBackgroundBlurAdjustment();
-        play(a, ObjectAnimator.ofInt(blurController, BACKGROUND_BLUR, mIsOpening
-                ? stateBackgroundBlur + folderBackgroundBlurAdjustment
-                : stateBackgroundBlur));
-
         // Store clip variables
         CellLayout cellLayout = mContent.getCurrentCellLayout();
         boolean folderClipChildren = mFolder.getClipChildren();

src_ui_overrides/com/android/launcher3/uioverrides/DepthController.java

@@ -17,7 +17,7 @@
 package com.android.launcher3.uioverrides;
 
 
-import android.util.IntProperty;
+import android.util.FloatProperty;
 import android.view.View;
 
 import com.android.launcher3.Launcher;
@@ -27,26 +27,22 @@ import com.android.launcher3.anim.PendingAnimation;
 import com.android.launcher3.states.StateAnimationConfig;
 
 /**
- * Controls the blur, for the Launcher surface only.
+ * Controls blur and wallpaper zoom, for the Launcher surface only.
  */
-public class BackgroundBlurController implements LauncherStateManager.StateHandler {
+public class DepthController implements LauncherStateManager.StateHandler {
 
-    public static final IntProperty<BackgroundBlurController> BACKGROUND_BLUR =
-            new IntProperty<BackgroundBlurController>("backgroundBlur") {
+    public static final FloatProperty<DepthController> DEPTH =
+            new FloatProperty<DepthController>("depth") {
                 @Override
-                public void setValue(BackgroundBlurController blurController, int blurRadius) {}
+                public void setValue(DepthController depthController, float depth) {}
 
                 @Override
-                public Integer get(BackgroundBlurController blurController) {
-                    return 0;
+                public Float get(DepthController depthController) {
+                    return 0f;
                 }
             };
 
-    public BackgroundBlurController(Launcher l) {}
-
-    public int getFolderBackgroundBlurAdjustment() {
-        return 0;
-    }
+    public DepthController(Launcher l) {}
 
     public void setSurfaceToLauncher(View v) {}