Merge "Updating window manager estimation logic:" into tm-dev am: d586e1948b

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/17070486

Change-Id: I02864003cf66b733a420afec69756edade427cc4

src/com/android/launcher3/BaseDraggingActivity.java

@@ -29,7 +29,6 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.pm.LauncherApps;
 import android.content.res.Configuration;
-import android.graphics.Insets;
 import android.graphics.Point;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
@@ -41,8 +40,6 @@ import android.util.Log;
 import android.view.ActionMode;
 import android.view.Display;
 import android.view.View;
-import android.view.WindowInsets.Type;
-import android.view.WindowMetrics;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
@@ -322,11 +319,7 @@ public abstract class BaseDraggingActivity extends BaseActivity
 
     protected WindowBounds getMultiWindowDisplaySize() {
         if (Utilities.ATLEAST_R) {
-            WindowMetrics wm = getWindowManager().getCurrentWindowMetrics();
-
-            Insets insets = wm.getWindowInsets().getInsets(Type.systemBars());
-            return new WindowBounds(wm.getBounds(),
-                    new Rect(insets.left, insets.top, insets.right, insets.bottom));
+            return WindowBounds.fromWindowMetrics(getWindowManager().getCurrentWindowMetrics());
         }
         // Note: Calls to getSize() can't rely on our cached DefaultDisplay since it can return
         // the app window size

src/com/android/launcher3/DeviceProfile.java

@@ -75,6 +75,7 @@ public class DeviceProfile {
     public final int heightPx;
     public final int availableWidthPx;
     public final int availableHeightPx;
+    public final int rotationHint;
 
     public final float aspectRatio;
 
@@ -239,6 +240,7 @@ public class DeviceProfile {
         this.isGestureMode = isGestureMode;
         windowX = windowBounds.bounds.left;
         windowY = windowBounds.bounds.top;
+        this.rotationHint = windowBounds.rotationHint;
 
         isScalableGrid = inv.isScalable && !isVerticalBarLayout() && !isMultiWindowMode;
 
@@ -548,8 +550,8 @@ public class DeviceProfile {
     }
 
     public Builder toBuilder(Context context) {
-        WindowBounds bounds =
-                new WindowBounds(widthPx, heightPx, availableWidthPx, availableHeightPx);
+        WindowBounds bounds = new WindowBounds(
+                widthPx, heightPx, availableWidthPx, availableHeightPx, rotationHint);
         bounds.bounds.offsetTo(windowX, windowY);
         return new Builder(context, inv, mInfo)
                 .setWindowBounds(bounds)

src/com/android/launcher3/InvariantDeviceProfile.java

@@ -55,6 +55,7 @@ import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.MainThreadInitializedObject;
 import com.android.launcher3.util.Themes;
 import com.android.launcher3.util.WindowBounds;
+import com.android.launcher3.util.window.WindowManagerProxy;
 
 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;
@@ -180,8 +181,7 @@ public class InvariantDeviceProfile {
     private final ArrayList<OnIDPChangeListener> mChangeListeners = new ArrayList<>();
 
     @VisibleForTesting
-    public InvariantDeviceProfile() {
-    }
+    public InvariantDeviceProfile() { }
 
     @TargetApi(23)
     private InvariantDeviceProfile(Context context) {
@@ -278,11 +278,16 @@ public class InvariantDeviceProfile {
     }
 
     private static @DeviceType int getDeviceType(Info displayInfo) {
-        // Each screen has two profiles (portrait/landscape), so devices with four or more
-        // supported profiles implies two or more internal displays.
-        if (displayInfo.supportedBounds.size() >= 4 && ENABLE_TWO_PANEL_HOME.get()) {
+        int flagPhone = 1 << 0;
+        int flagTablet = 1 << 1;
+
+        int type = displayInfo.supportedBounds.stream()
+                .mapToInt(bounds -> displayInfo.isTablet(bounds) ? flagTablet : flagPhone)
+                .reduce(0, (a, b) -> a | b);
+        if ((type == (flagPhone | flagTablet)) && ENABLE_TWO_PANEL_HOME.get()) {
+            // device has profiles supporting both phone and table modes
             return TYPE_MULTI_DISPLAY;
-        } else if (displayInfo.supportedBounds.stream().allMatch(displayInfo::isTablet)) {
+        } else if (type == flagTablet) {
             return TYPE_TABLET;
         } else {
             return TYPE_PHONE;
@@ -613,10 +618,14 @@ public class InvariantDeviceProfile {
 
         float screenWidth = config.screenWidthDp * res.getDisplayMetrics().density;
         float screenHeight = config.screenHeightDp * res.getDisplayMetrics().density;
-        return getBestMatch(screenWidth, screenHeight);
+        return getBestMatch(screenWidth, screenHeight,
+                WindowManagerProxy.INSTANCE.get(context).getRotation(context));
     }
 
-    public DeviceProfile getBestMatch(float screenWidth, float screenHeight) {
+    /**
+     * Returns the device profile matching the provided screen configuration
+     */
+    public DeviceProfile getBestMatch(float screenWidth, float screenHeight, int rotation) {
         DeviceProfile bestMatch = supportedProfiles.get(0);
         float minDiff = Float.MAX_VALUE;
 
@@ -626,6 +635,8 @@ public class InvariantDeviceProfile {
             if (diff < minDiff) {
                 minDiff = diff;
                 bestMatch = profile;
+            } else if (diff == minDiff && profile.rotationHint == rotation) {
+                bestMatch = profile;
             }
         }
         return bestMatch;

src/com/android/launcher3/LauncherRootView.java

@@ -1,24 +1,19 @@
 package com.android.launcher3;
 
-import static com.android.launcher3.ResourceUtils.INVALID_RESOURCE_HANDLE;
 import static com.android.launcher3.config.FeatureFlags.SEPARATE_RECENTS_ACTIVITY;
 
 import android.annotation.TargetApi;
 import android.content.Context;
-import android.content.res.Resources;
 import android.graphics.Canvas;
-import android.graphics.Insets;
 import android.graphics.Rect;
 import android.os.Build;
 import android.util.AttributeSet;
 import android.view.ViewDebug;
 import android.view.WindowInsets;
 
-import androidx.annotation.RequiresApi;
-
 import com.android.launcher3.graphics.SysUiScrim;
 import com.android.launcher3.statemanager.StatefulActivity;
-import com.android.launcher3.uioverrides.ApiWrapper;
+import com.android.launcher3.util.window.WindowManagerProxy;
 
 import java.util.Collections;
 import java.util.List;
@@ -60,76 +55,12 @@ public class LauncherRootView extends InsettableFrameLayout {
 
     @Override
     public WindowInsets onApplyWindowInsets(WindowInsets insets) {
-        if (Utilities.ATLEAST_R) {
-            insets = updateInsetsDueToTaskbar(insets);
-            Insets systemWindowInsets = insets.getInsetsIgnoringVisibility(
-                    WindowInsets.Type.systemBars() | WindowInsets.Type.displayCutout());
-            mTempRect.set(systemWindowInsets.left, systemWindowInsets.top, systemWindowInsets.right,
-                    systemWindowInsets.bottom);
-        } else {
-            mTempRect.set(insets.getSystemWindowInsetLeft(), insets.getSystemWindowInsetTop(),
-                    insets.getSystemWindowInsetRight(), insets.getSystemWindowInsetBottom());
-        }
+        insets = WindowManagerProxy.INSTANCE.get(getContext())
+                .normalizeWindowInsets(getContext(), insets, mTempRect);
         handleSystemWindowInsets(mTempRect);
         return insets;
     }
 
-    /**
-     * Taskbar provides nav bar and tappable insets. However, taskbar is not attached immediately,
-     * and can be destroyed and recreated. Thus, instead of relying on taskbar being present to
-     * get its insets, we calculate them ourselves so they are stable regardless of whether taskbar
-     * is currently attached.
-     *
-     * @param oldInsets The system-provided insets, which we are modifying.
-     * @return The updated insets.
-     */
-    @RequiresApi(api = Build.VERSION_CODES.R)
-    private WindowInsets updateInsetsDueToTaskbar(WindowInsets oldInsets) {
-        if (!ApiWrapper.TASKBAR_DRAWN_IN_PROCESS) {
-            // 3P launchers based on Launcher3 should still be inset like normal.
-            return oldInsets;
-        }
-
-        WindowInsets.Builder updatedInsetsBuilder = new WindowInsets.Builder(oldInsets);
-
-        DeviceProfile dp = mActivity.getDeviceProfile();
-        Resources resources = getResources();
-
-        Insets oldNavInsets = oldInsets.getInsets(WindowInsets.Type.navigationBars());
-        Rect newNavInsets = new Rect(oldNavInsets.left, oldNavInsets.top, oldNavInsets.right,
-                oldNavInsets.bottom);
-
-        if (dp.isLandscape) {
-            boolean isGesturalMode = ResourceUtils.getIntegerByName(
-                    "config_navBarInteractionMode",
-                    resources,
-                    INVALID_RESOURCE_HANDLE) == 2;
-            if (dp.isTablet || isGesturalMode) {
-                newNavInsets.bottom = dp.isTaskbarPresent
-                        ? 0
-                        : ResourceUtils.getNavbarSize("navigation_bar_height_landscape", resources);
-            } else {
-                int navWidth = ResourceUtils.getNavbarSize("navigation_bar_width", resources);
-                if (dp.isSeascape()) {
-                    newNavInsets.left = navWidth;
-                } else {
-                    newNavInsets.right = navWidth;
-                }
-            }
-        } else {
-            newNavInsets.bottom = dp.isTaskbarPresent
-                    ? 0
-                    : ResourceUtils.getNavbarSize("navigation_bar_height", resources);
-        }
-        updatedInsetsBuilder.setInsets(WindowInsets.Type.navigationBars(), Insets.of(newNavInsets));
-        updatedInsetsBuilder.setInsetsIgnoringVisibility(WindowInsets.Type.navigationBars(),
-                Insets.of(newNavInsets));
-
-        mActivity.updateWindowInsets(updatedInsetsBuilder, oldInsets);
-
-        return updatedInsetsBuilder.build();
-    }
-
     @Override
     public void setInsets(Rect insets) {
         // If the insets haven't changed, this is a no-op. Avoid unnecessary layout caused by

src/com/android/launcher3/ResourceUtils.java

@@ -28,6 +28,9 @@ public class ResourceUtils {
     public static final String NAVBAR_BOTTOM_GESTURE_LARGER_SIZE =
             "navigation_bar_gesture_larger_height";
 
+    public static final String NAVBAR_HEIGHT = "navigation_bar_height";
+    public static final String NAVBAR_HEIGHT_LANDSCAPE = "navigation_bar_height_landscape";
+
     public static int getNavbarSize(String resName, Resources res) {
         return getDimenByName(resName, res, DEFAULT_NAVBAR_VALUE);
     }

src/com/android/launcher3/graphics/LauncherPreviewRenderer.java

@@ -87,6 +87,7 @@ import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.IntSet;
 import com.android.launcher3.util.MainThreadInitializedObject.SandboxContext;
+import com.android.launcher3.util.window.WindowManagerProxy;
 import com.android.launcher3.views.ActivityContext;
 import com.android.launcher3.views.BaseDragLayer;
 import com.android.launcher3.widget.BaseLauncherAppWidgetHostView;
@@ -128,7 +129,8 @@ public class LauncherPreviewRenderer extends ContextWrapper
         public PreviewContext(Context base, InvariantDeviceProfile idp) {
             super(base, UserCache.INSTANCE, InstallSessionHelper.INSTANCE,
                     LauncherAppState.INSTANCE, InvariantDeviceProfile.INSTANCE,
-                    CustomWidgetManager.INSTANCE, PluginManagerWrapper.INSTANCE);
+                    CustomWidgetManager.INSTANCE, PluginManagerWrapper.INSTANCE,
+                    WindowManagerProxy.INSTANCE);
             mIdp = idp;
             mObjectMap.put(InvariantDeviceProfile.INSTANCE, idp);
             mObjectMap.put(LauncherAppState.INSTANCE,

src/com/android/launcher3/statemanager/StatefulActivity.java

@@ -17,15 +17,11 @@ package com.android.launcher3.statemanager;
 
 import static com.android.launcher3.LauncherState.FLAG_NON_INTERACTIVE;
 
-import android.graphics.Insets;
-import android.os.Build;
 import android.os.Handler;
 import android.view.LayoutInflater;
 import android.view.View;
-import android.view.WindowInsets;
 
 import androidx.annotation.CallSuper;
-import androidx.annotation.RequiresApi;
 
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.LauncherRootView;
@@ -178,14 +174,6 @@ public abstract class StatefulActivity<STATE_TYPE extends BaseState<STATE_TYPE>>
         Utilities.postAsyncCallback(mHandler, mHandleDeferredResume);
     }
 
-    /**
-     * Gives subclasses a chance to override some window insets (via
-     * {@link android.view.WindowInsets.Builder#setInsets(int, Insets)}).
-     */
-    @RequiresApi(api = Build.VERSION_CODES.R)
-    public void updateWindowInsets(WindowInsets.Builder updatedInsetsBuilder,
-            WindowInsets oldInsets) { }
-
     /**
      * Runs the given {@param r} runnable when this activity binds to the touch interaction service.
      */

src/com/android/launcher3/states/RotationHelper.java

@@ -21,7 +21,7 @@ import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
 import static android.util.DisplayMetrics.DENSITY_DEVICE_STABLE;
 
 import static com.android.launcher3.Utilities.dpiFromPx;
-import static com.android.launcher3.util.WindowManagerCompat.MIN_TABLET_WIDTH;
+import static com.android.launcher3.util.window.WindowManagerProxy.MIN_TABLET_WIDTH;
 
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;

src/com/android/launcher3/util/DisplayController.java

@@ -26,10 +26,8 @@ import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCH
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_NAVIGATION_MODE_GESTURE_BUTTON;
 import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 import static com.android.launcher3.util.PackageManagerHelper.getPackageFilter;
-import static com.android.launcher3.util.WindowManagerCompat.MIN_LARGE_TABLET_WIDTH;
-import static com.android.launcher3.util.WindowManagerCompat.MIN_TABLET_WIDTH;
-
-import static java.util.Collections.emptyMap;
+import static com.android.launcher3.util.window.WindowManagerProxy.MIN_LARGE_TABLET_WIDTH;
+import static com.android.launcher3.util.window.WindowManagerProxy.MIN_TABLET_WIDTH;
 
 import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
@@ -38,12 +36,13 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.res.Configuration;
 import android.graphics.Point;
+import android.graphics.Rect;
 import android.hardware.display.DisplayManager;
 import android.os.Build;
-import android.text.TextUtils;
 import android.util.ArrayMap;
 import android.util.ArraySet;
 import android.util.Log;
+import android.util.Pair;
 import android.view.Display;
 
 import androidx.annotation.AnyThread;
@@ -52,11 +51,12 @@ import androidx.annotation.UiThread;
 import com.android.launcher3.ResourceUtils;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.logging.StatsLogManager.LauncherEvent;
-import com.android.launcher3.uioverrides.ApiWrapper;
+import com.android.launcher3.util.window.CachedDisplayInfo;
+import com.android.launcher3.util.window.WindowManagerProxy;
 
 import java.io.PrintWriter;
 import java.util.ArrayList;
-import java.util.Map;
+import java.util.Collections;
 import java.util.Objects;
 import java.util.Set;
 
@@ -89,6 +89,7 @@ public class DisplayController implements ComponentCallbacks, SafeCloseable {
 
     // Null for SDK < S
     private final Context mWindowContext;
+
     // The callback in this listener updates DeviceProfile, which other listeners might depend on
     private DisplayInfoChangeListener mPriorityListener;
     private final ArrayList<DisplayInfoChangeListener> mListeners = new ArrayList<>();
@@ -115,23 +116,9 @@ public class DisplayController implements ComponentCallbacks, SafeCloseable {
         mContext.registerReceiver(mReceiver,
                 getPackageFilter(TARGET_OVERLAY_PACKAGE, ACTION_OVERLAY_CHANGED));
 
+        WindowManagerProxy wmProxy = WindowManagerProxy.INSTANCE.get(context);
         mInfo = new Info(getDisplayInfoContext(display), display,
-                getInternalDisplays(mDM), emptyMap());
-    }
-
-    private static ArrayMap<String, PortraitSize> getInternalDisplays(
-            DisplayManager displayManager) {
-        Display[] displays = displayManager.getDisplays();
-        ArrayMap<String, PortraitSize> internalDisplays = new ArrayMap<>();
-        for (Display display : displays) {
-            if (ApiWrapper.isInternalDisplay(display)) {
-                Point size = new Point();
-                display.getRealSize(size);
-                internalDisplays.put(ApiWrapper.getUniqueId(display),
-                        new PortraitSize(size.x, size.y));
-            }
-        }
-        return internalDisplays;
+                wmProxy, wmProxy.estimateInternalDisplayBounds(context));
     }
 
     /**
@@ -226,16 +213,17 @@ public class DisplayController implements ComponentCallbacks, SafeCloseable {
 
     @AnyThread
     private void handleInfoChange(Display display) {
+        WindowManagerProxy wmProxy = WindowManagerProxy.INSTANCE.get(mContext);
         Info oldInfo = mInfo;
 
         Context displayContext = getDisplayInfoContext(display);
-        Info newInfo = new Info(displayContext, display,
-                oldInfo.mInternalDisplays, oldInfo.mPerDisplayBounds);
+        Info newInfo = new Info(displayContext, display, wmProxy, oldInfo.mPerDisplayBounds);
 
         if (newInfo.densityDpi != oldInfo.densityDpi || newInfo.fontScale != oldInfo.fontScale
                 || newInfo.navigationMode != oldInfo.navigationMode) {
             // Cache may not be valid anymore, recreate without cache
-            newInfo = new Info(displayContext, display, getInternalDisplays(mDM), emptyMap());
+            newInfo = new Info(displayContext, display, wmProxy,
+                    wmProxy.estimateInternalDisplayBounds(displayContext));
         }
 
         int change = 0;
@@ -254,9 +242,8 @@ public class DisplayController implements ComponentCallbacks, SafeCloseable {
         if (!newInfo.supportedBounds.equals(oldInfo.supportedBounds)) {
             change |= CHANGE_SUPPORTED_BOUNDS;
 
-            PortraitSize realSize = new PortraitSize(newInfo.currentSize.x, newInfo.currentSize.y);
-            PortraitSize expectedSize = oldInfo.mInternalDisplays.get(
-                    ApiWrapper.getUniqueId(display));
+            Point currentS = newInfo.currentSize;
+            Point expectedS = oldInfo.mPerDisplayBounds.get(newInfo.displayId).first.size;
             if (newInfo.supportedBounds.size() != oldInfo.supportedBounds.size()) {
                 Log.e("b/198965093",
                         "Inconsistent number of displays"
@@ -264,7 +251,9 @@ public class DisplayController implements ComponentCallbacks, SafeCloseable {
                                 + "\noldInfo.supportedBounds: " + oldInfo.supportedBounds
                                 + "\nnewInfo.supportedBounds: " + newInfo.supportedBounds);
             }
-            if (!realSize.equals(expectedSize) && display.getState() == Display.STATE_OFF) {
+            if ((Math.min(currentS.x, currentS.y) != Math.min(expectedS.x, expectedS.y)
+                    || Math.max(currentS.x, currentS.y) != Math.max(expectedS.x, expectedS.y))
+                    && display.getState() == Display.STATE_OFF) {
                 Log.e("b/198965093", "Display size changed while display is off, ignoring change");
                 return;
             }
@@ -290,30 +279,38 @@ public class DisplayController implements ComponentCallbacks, SafeCloseable {
 
     public static class Info {
 
-        // Configuration properties
+        // Cached property
         public final int rotation;
+        public final String displayId;
+        public final Point currentSize;
+        public final Rect cutout;
+
+        // Configuration property
         public final float fontScale;
         public final int densityDpi;
         public final NavigationMode navigationMode;
 
         private final PortraitSize mScreenSizeDp;
 
-        public final Point currentSize;
-
-        public String displayId;
         public final Set<WindowBounds> supportedBounds = new ArraySet<>();
-        private final Map<String, Set<WindowBounds>> mPerDisplayBounds = new ArrayMap<>();
-        private final ArrayMap<String, PortraitSize> mInternalDisplays;
+
+        private final ArrayMap<String, Pair<CachedDisplayInfo, WindowBounds[]>> mPerDisplayBounds =
+                new ArrayMap<>();
 
         public Info(Context context, Display display) {
-            this(context, display, new ArrayMap<>(), emptyMap());
+            /* don't need system overrides for external displays */
+            this(context, display, new WindowManagerProxy(), new ArrayMap<>());
         }
 
-        private Info(Context context, Display display,
-                ArrayMap<String, PortraitSize> internalDisplays,
-                Map<String, Set<WindowBounds>> perDisplayBoundsCache) {
-            mInternalDisplays = internalDisplays;
-            rotation = display.getRotation();
+        // Used for testing
+        public Info(Context context, Display display,
+                WindowManagerProxy wmProxy,
+                ArrayMap<String, Pair<CachedDisplayInfo, WindowBounds[]>> perDisplayBoundsCache) {
+            CachedDisplayInfo displayInfo = wmProxy.getDisplayInfo(display);
+            rotation = displayInfo.rotation;
+            currentSize = displayInfo.size;
+            displayId = displayInfo.id;
+            cutout = displayInfo.cutout;
 
             Configuration config = context.getResources().getConfiguration();
             fontScale = config.fontScale;
@@ -321,54 +318,29 @@ public class DisplayController implements ComponentCallbacks, SafeCloseable {
             mScreenSizeDp = new PortraitSize(config.screenHeightDp, config.screenWidthDp);
             navigationMode = parseNavigationMode(context);
 
-            currentSize = new Point();
-            display.getRealSize(currentSize);
+            mPerDisplayBounds.putAll(perDisplayBoundsCache);
+            Pair<CachedDisplayInfo, WindowBounds[]> cachedValue = mPerDisplayBounds.get(displayId);
 
-            displayId = ApiWrapper.getUniqueId(display);
-            Set<WindowBounds> currentSupportedBounds =
-                    getSupportedBoundsForDisplay(display, currentSize);
-            mPerDisplayBounds.put(displayId, currentSupportedBounds);
-            supportedBounds.addAll(currentSupportedBounds);
-
-            if (ApiWrapper.isInternalDisplay(display) && internalDisplays.size() > 1) {
-                int displayCount = internalDisplays.size();
-                for (int i = 0; i < displayCount; i++) {
-                    String displayKey = internalDisplays.keyAt(i);
-                    if (TextUtils.equals(displayId, displayKey)) {
-                        continue;
-                    }
-
-                    Set<WindowBounds> displayBounds = perDisplayBoundsCache.get(displayKey);
-                    if (displayBounds == null) {
-                        // We assume densityDpi is the same across all internal displays
-                        displayBounds = WindowManagerCompat.estimateDisplayProfiles(
-                                context, internalDisplays.valueAt(i), densityDpi,
-                                ApiWrapper.TASKBAR_DRAWN_IN_PROCESS);
-                    }
-
-                    supportedBounds.addAll(displayBounds);
-                    mPerDisplayBounds.put(displayKey, displayBounds);
+            WindowBounds realBounds = wmProxy.getRealBounds(context, display, displayInfo);
+            if (cachedValue == null) {
+                supportedBounds.add(realBounds);
+            } else {
+                // Verify that the real bounds are a match
+                WindowBounds expectedBounds = cachedValue.second[displayInfo.rotation];
+                if (!realBounds.equals(expectedBounds)) {
+                    WindowBounds[] clone = new WindowBounds[4];
+                    System.arraycopy(cachedValue.second, 0, clone, 0, 4);
+                    clone[displayInfo.rotation] = realBounds;
+                    cachedValue = Pair.create(displayInfo.normalize(), clone);
+                    mPerDisplayBounds.put(displayId, cachedValue);
                 }
             }
+            mPerDisplayBounds.values().forEach(
+                    pair -> Collections.addAll(supportedBounds, pair.second));
             Log.d("b/211775278", "displayId: " + displayId + ", currentSize: " + currentSize);
             Log.d("b/211775278", "perDisplayBounds: " + mPerDisplayBounds);
         }
 
-        private static Set<WindowBounds> getSupportedBoundsForDisplay(Display display, Point size) {
-            Point smallestSize = new Point();
-            Point largestSize = new Point();
-            display.getCurrentSizeRange(smallestSize, largestSize);
-
-            int portraitWidth = Math.min(size.x, size.y);
-            int portraitHeight = Math.max(size.x, size.y);
-            Set<WindowBounds> result = new ArraySet<>();
-            result.add(new WindowBounds(portraitWidth, portraitHeight,
-                    smallestSize.x, largestSize.y));
-            result.add(new WindowBounds(portraitHeight, portraitWidth,
-                    largestSize.x, smallestSize.y));
-            return result;
-        }
-
         /**
          * Returns {@code true} if the bounds represent a tablet.
          */

src/com/android/launcher3/util/RotationUtils.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.util;
+
+import static android.view.Surface.ROTATION_0;
+import static android.view.Surface.ROTATION_180;
+import static android.view.Surface.ROTATION_270;
+import static android.view.Surface.ROTATION_90;
+
+import android.graphics.Point;
+import android.graphics.Rect;
+
+/**
+ * Utility methods based on {@code frameworks/base/core/java/android/util/RotationUtils.java}
+ */
+public class RotationUtils {
+
+    /**
+     * Rotates an Rect according to the given rotation.
+     */
+    public static void rotateRect(Rect rect, int rotation) {
+        switch (rotation) {
+            case ROTATION_0:
+                return;
+            case ROTATION_90:
+                rect.set(rect.top, rect.right, rect.bottom, rect.left);
+                return;
+            case ROTATION_180:
+                rect.set(rect.right, rect.bottom, rect.left, rect.top);
+                return;
+            case ROTATION_270:
+                rect.set(rect.bottom, rect.left, rect.top, rect.right);
+                return;
+            default:
+                throw new IllegalArgumentException("unknown rotation: " + rotation);
+        }
+    }
+
+    /**
+     * Rotates an size according to the given rotation.
+     */
+    public static void rotateSize(Point size, int rotation) {
+        switch (rotation) {
+            case ROTATION_0:
+            case ROTATION_180:
+                return;
+            case ROTATION_90:
+            case ROTATION_270:
+                size.set(size.y, size.x);
+                return;
+            default:
+                throw new IllegalArgumentException("unknown rotation: " + rotation);
+        }
+    }
+
+    /** @return the rotation needed to rotate from oldRotation to newRotation. */
+    public static int deltaRotation(int oldRotation, int newRotation) {
+        int delta = newRotation - oldRotation;
+        if (delta < 0) delta += 4;
+        return delta;
+    }
+}

src/com/android/launcher3/util/WindowBounds.java

@@ -33,19 +33,27 @@ public class WindowBounds {
     public final Rect bounds;
     public final Rect insets;
     public final Point availableSize;
+    public final int rotationHint;
 
     public WindowBounds(Rect bounds, Rect insets) {
+        this(bounds, insets, -1);
+    }
+
+    public WindowBounds(Rect bounds, Rect insets, int rotationHint) {
         this.bounds = bounds;
         this.insets = insets;
+        this.rotationHint = rotationHint;
         availableSize = new Point(bounds.width() - insets.left - insets.right,
                 bounds.height() - insets.top - insets.bottom);
     }
 
-    public WindowBounds(int width, int height, int availableWidth, int availableHeight) {
+    public WindowBounds(int width, int height, int availableWidth, int availableHeight,
+            int rotationHint) {
         this.bounds = new Rect(0, 0, width, height);
         this.availableSize = new Point(availableWidth, availableHeight);
         // We don't care about insets in this case
         this.insets = new Rect(0, 0, width - availableWidth, height - availableHeight);
+        this.rotationHint = rotationHint;
     }
 
     @Override

src/com/android/launcher3/util/WindowManagerCompat.java

@@ -1,109 +0,0 @@
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.android.launcher3.util;
-
-import static com.android.launcher3.ResourceUtils.INVALID_RESOURCE_HANDLE;
-import static com.android.launcher3.Utilities.dpiFromPx;
-
-import android.annotation.TargetApi;
-import android.content.Context;
-import android.content.res.Configuration;
-import android.graphics.Insets;
-import android.graphics.Rect;
-import android.os.Build;
-import android.util.ArraySet;
-import android.view.WindowInsets;
-import android.view.WindowInsets.Type;
-import android.view.WindowManager;
-import android.view.WindowMetrics;
-
-import com.android.launcher3.R;
-import com.android.launcher3.ResourceUtils;
-import com.android.launcher3.Utilities;
-import com.android.launcher3.util.DisplayController.PortraitSize;
-
-import java.util.Collections;
-import java.util.Set;
-
-/**
- * Utility class to estimate window manager values
- */
-@TargetApi(Build.VERSION_CODES.S)
-public class WindowManagerCompat {
-
-    public static final int MIN_TABLET_WIDTH = 600;
-    public static final int MIN_LARGE_TABLET_WIDTH = 720;
-
-    /**
-     * Returns a set of supported render sizes for a internal display.
-     * This is a temporary workaround which assumes only nav-bar insets change across displays, and
-     * is only used until we eventually get the real values
-     * @param consumeTaskBar if true, it assumes that task bar is part of the app window
-     *                       and ignores any insets because of task bar.
-     */
-    public static Set<WindowBounds> estimateDisplayProfiles(
-            Context windowContext, PortraitSize size, int densityDpi, boolean consumeTaskBar) {
-        if (!Utilities.ATLEAST_S) {
-            return Collections.emptySet();
-        }
-        WindowInsets defaultInsets = windowContext.getSystemService(WindowManager.class)
-                .getMaximumWindowMetrics().getWindowInsets();
-        boolean isGesturalMode = ResourceUtils.getIntegerByName(
-                "config_navBarInteractionMode",
-                windowContext.getResources(),
-                INVALID_RESOURCE_HANDLE) == 2;
-
-        WindowInsets.Builder insetsBuilder = new WindowInsets.Builder(defaultInsets);
-        Set<WindowBounds> result = new ArraySet<>();
-        int swDP = (int) dpiFromPx(size.width, densityDpi);
-        boolean isTablet = swDP >= MIN_TABLET_WIDTH;
-
-        final Insets portraitNav, landscapeNav;
-        if (isTablet && !consumeTaskBar) {
-            portraitNav = landscapeNav = Insets.of(0, 0, 0, windowContext.getResources()
-                    .getDimensionPixelSize(R.dimen.taskbar_size));
-        } else if (!isGesturalMode) {
-            portraitNav = Insets.of(0, 0, 0,
-                    getSystemResource(windowContext, "navigation_bar_height", swDP));
-            landscapeNav = isTablet
-                    ? Insets.of(0, 0, 0, getSystemResource(windowContext,
-                            "navigation_bar_height_landscape", swDP))
-                    : Insets.of(0, 0, getSystemResource(windowContext,
-                            "navigation_bar_width", swDP), 0);
-        } else {
-            portraitNav = landscapeNav = Insets.of(0, 0, 0, 0);
-        }
-
-        result.add(WindowBounds.fromWindowMetrics(new WindowMetrics(
-                new Rect(0, 0, size.width, size.height),
-                insetsBuilder.setInsets(Type.navigationBars(), portraitNav).build())));
-        result.add(WindowBounds.fromWindowMetrics(new WindowMetrics(
-                new Rect(0, 0, size.height, size.width),
-                insetsBuilder.setInsets(Type.navigationBars(), landscapeNav).build())));
-        return result;
-    }
-
-    private static int getSystemResource(Context context, String key, int swDp) {
-        int resourceId = context.getResources().getIdentifier(key, "dimen", "android");
-        if (resourceId > 0) {
-            Configuration conf = new Configuration();
-            conf.smallestScreenWidthDp = swDp;
-            return context.createConfigurationContext(conf)
-                    .getResources().getDimensionPixelSize(resourceId);
-        }
-        return 0;
-    }
-}

src/com/android/launcher3/util/window/CachedDisplayInfo.java

@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.util.window;
+
+import static com.android.launcher3.util.RotationUtils.deltaRotation;
+import static com.android.launcher3.util.RotationUtils.rotateRect;
+import static com.android.launcher3.util.RotationUtils.rotateSize;
+
+import android.graphics.Point;
+import android.graphics.Rect;
+import android.view.Surface;
+
+import java.util.Objects;
+
+/**
+ * Properties on a display
+ */
+public class CachedDisplayInfo {
+
+    public final String id;
+    public final Point size;
+    public final int rotation;
+    public final Rect cutout;
+
+    public CachedDisplayInfo() {
+        this(new Point(0, 0), 0);
+    }
+
+    public CachedDisplayInfo(Point size, int rotation) {
+        this("", size, rotation, new Rect());
+    }
+
+    public CachedDisplayInfo(String id, Point size, int rotation, Rect cutout) {
+        this.id = id;
+        this.size = size;
+        this.rotation = rotation;
+        this.cutout = cutout;
+    }
+
+    /**
+     * Returns a CachedDisplayInfo where the properties are normalized to {@link Surface#ROTATION_0}
+     */
+    public CachedDisplayInfo normalize() {
+        if (rotation == Surface.ROTATION_0) {
+            return this;
+        }
+        Point newSize = new Point(size);
+        rotateSize(newSize, deltaRotation(rotation, Surface.ROTATION_0));
+
+        Rect newCutout = new Rect(cutout);
+        rotateRect(newCutout, deltaRotation(rotation, Surface.ROTATION_0));
+        return new CachedDisplayInfo(id, newSize, Surface.ROTATION_0, newCutout);
+    }
+
+    @Override
+    public String toString() {
+        return "CachedDisplayInfo{"
+                + "id='" + id + '\''
+                + ", size=" + size
+                + ", rotation=" + rotation
+                + ", cutout=" + cutout
+                + '}';
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (!(o instanceof CachedDisplayInfo)) return false;
+        CachedDisplayInfo that = (CachedDisplayInfo) o;
+        return rotation == that.rotation && Objects.equals(id, that.id)
+                && Objects.equals(size, that.size) && Objects.equals(cutout,
+                that.cutout);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id, size, rotation, cutout);
+    }
+}

src/com/android/launcher3/util/window/WindowManagerProxy.java

@@ -0,0 +1,311 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.util.window;
+
+import static com.android.launcher3.ResourceUtils.INVALID_RESOURCE_HANDLE;
+import static com.android.launcher3.ResourceUtils.NAVBAR_HEIGHT;
+import static com.android.launcher3.ResourceUtils.NAVBAR_HEIGHT_LANDSCAPE;
+import static com.android.launcher3.ResourceUtils.NAVBAR_LANDSCAPE_LEFT_RIGHT_SIZE;
+import static com.android.launcher3.ResourceUtils.getDimenByName;
+import static com.android.launcher3.Utilities.dpiFromPx;
+import static com.android.launcher3.util.MainThreadInitializedObject.forOverride;
+import static com.android.launcher3.util.RotationUtils.deltaRotation;
+import static com.android.launcher3.util.RotationUtils.rotateRect;
+import static com.android.launcher3.util.RotationUtils.rotateSize;
+
+import android.annotation.TargetApi;
+import android.content.Context;
+import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.graphics.Insets;
+import android.graphics.Point;
+import android.graphics.Rect;
+import android.hardware.display.DisplayManager;
+import android.os.Build;
+import android.util.ArrayMap;
+import android.util.Pair;
+import android.view.Display;
+import android.view.DisplayCutout;
+import android.view.Surface;
+import android.view.WindowInsets;
+import android.view.WindowManager;
+import android.view.WindowMetrics;
+
+import com.android.launcher3.R;
+import com.android.launcher3.ResourceUtils;
+import com.android.launcher3.Utilities;
+import com.android.launcher3.util.DisplayController;
+import com.android.launcher3.util.MainThreadInitializedObject;
+import com.android.launcher3.util.ResourceBasedOverride;
+import com.android.launcher3.util.WindowBounds;
+
+/**
+ * Utility class for mocking some window manager behaviours
+ */
+public class WindowManagerProxy implements ResourceBasedOverride {
+
+    public static final int MIN_TABLET_WIDTH = 600;
+    public static final int MIN_LARGE_TABLET_WIDTH = 720;
+
+    public static final MainThreadInitializedObject<WindowManagerProxy> INSTANCE =
+            forOverride(WindowManagerProxy.class, R.string.window_manager_proxy_class);
+
+    protected final boolean mTaskbarDrawnInProcess;
+
+    /**
+     * Creates a new instance of proxy, applying any overrides
+     */
+    public static WindowManagerProxy newInstance(Context context) {
+        return Overrides.getObject(WindowManagerProxy.class, context,
+                R.string.window_manager_proxy_class);
+    }
+
+    public WindowManagerProxy() {
+        this(false);
+    }
+
+    protected WindowManagerProxy(boolean taskbarDrawnInProcess) {
+        mTaskbarDrawnInProcess = taskbarDrawnInProcess;
+    }
+
+    /**
+     * Returns a map of normalized info of internal displays to estimated window bounds
+     * for that display
+     */
+    public ArrayMap<String, Pair<CachedDisplayInfo, WindowBounds[]>> estimateInternalDisplayBounds(
+            Context context) {
+        Display[] displays = context.getSystemService(DisplayManager.class).getDisplays();
+        ArrayMap<String, Pair<CachedDisplayInfo, WindowBounds[]>> result = new ArrayMap<>();
+        for (Display display : displays) {
+            if (isInternalDisplay(display)) {
+                CachedDisplayInfo info = getDisplayInfo(display).normalize();
+                WindowBounds[] bounds = estimateWindowBounds(context, info);
+                result.put(info.id, Pair.create(info, bounds));
+            }
+        }
+        return result;
+    }
+
+    /**
+     * Returns the real bounds for the provided display after applying any insets normalization
+     */
+    @TargetApi(Build.VERSION_CODES.R)
+    public WindowBounds getRealBounds(Context windowContext,
+            Display display, CachedDisplayInfo info) {
+        if (!Utilities.ATLEAST_R) {
+            Point smallestSize = new Point();
+            Point largestSize = new Point();
+            display.getCurrentSizeRange(smallestSize, largestSize);
+
+            if (info.size.y > info.size.x) {
+                // Portrait
+                return new WindowBounds(info.size.x, info.size.y, smallestSize.x, largestSize.y,
+                        info.rotation);
+            } else {
+                // Landscape
+                new WindowBounds(info.size.x, info.size.y, largestSize.x, smallestSize.y,
+                        info.rotation);
+            }
+        }
+
+        WindowMetrics wm = windowContext.getSystemService(WindowManager.class)
+                .getCurrentWindowMetrics();
+
+        Rect insets = new Rect();
+        normalizeWindowInsets(windowContext, wm.getWindowInsets(), insets);
+        return new WindowBounds(wm.getBounds(), insets, info.rotation);
+    }
+
+    /**
+     * Returns an updated insets, accounting for various Launcher UI specific overrides like taskbar
+     */
+    @TargetApi(Build.VERSION_CODES.R)
+    public WindowInsets normalizeWindowInsets(Context context, WindowInsets oldInsets,
+            Rect outInsets) {
+        if (!Utilities.ATLEAST_R || !mTaskbarDrawnInProcess) {
+            outInsets.set(oldInsets.getSystemWindowInsetLeft(), oldInsets.getSystemWindowInsetTop(),
+                    oldInsets.getSystemWindowInsetRight(), oldInsets.getSystemWindowInsetBottom());
+            return oldInsets;
+        }
+
+        WindowInsets.Builder insetsBuilder = new WindowInsets.Builder(oldInsets);
+        Insets navInsets = oldInsets.getInsets(WindowInsets.Type.navigationBars());
+
+        Resources systemRes = context.getResources();
+        Configuration config = systemRes.getConfiguration();
+
+        boolean isTablet = config.smallestScreenWidthDp > MIN_TABLET_WIDTH;
+        boolean isGesture = isGestureNav(context);
+
+        int bottomNav = isTablet
+                ? 0
+                : (config.screenHeightDp > config.screenWidthDp
+                        ? getDimenByName(NAVBAR_HEIGHT, systemRes, 0)
+                        : (isGesture
+                                ? getDimenByName(NAVBAR_HEIGHT_LANDSCAPE, systemRes, 0)
+                                : 0));
+        Insets newNavInsets = Insets.of(navInsets.left, navInsets.top, navInsets.right, bottomNav);
+        insetsBuilder.setInsets(WindowInsets.Type.navigationBars(), newNavInsets);
+        insetsBuilder.setInsetsIgnoringVisibility(WindowInsets.Type.navigationBars(), newNavInsets);
+
+        // Override the tappable insets to be 0 on the bottom for gesture nav (otherwise taskbar
+        // would count towards it). This is used for the bottom protection in All Apps for example.
+        if (isGesture) {
+            Insets oldTappableInsets = oldInsets.getInsets(WindowInsets.Type.tappableElement());
+            Insets newTappableInsets = Insets.of(oldTappableInsets.left, oldTappableInsets.top,
+                    oldTappableInsets.right, 0);
+            insetsBuilder.setInsets(WindowInsets.Type.tappableElement(), newTappableInsets);
+        }
+
+        WindowInsets result = insetsBuilder.build();
+        Insets systemWindowInsets = result.getInsetsIgnoringVisibility(
+                WindowInsets.Type.systemBars() | WindowInsets.Type.displayCutout());
+        outInsets.set(systemWindowInsets.left, systemWindowInsets.top, systemWindowInsets.right,
+                systemWindowInsets.bottom);
+        return result;
+    }
+
+    /**
+     * Returns true if the display is an internal displays
+     */
+    protected boolean isInternalDisplay(Display display) {
+        return display.getDisplayId() == Display.DEFAULT_DISPLAY;
+    }
+
+    /**
+     * Returns a list of possible WindowBounds for the display keyed on the 4 surface rotations
+     */
+    public WindowBounds[] estimateWindowBounds(Context context, CachedDisplayInfo display) {
+        int densityDpi = context.getResources().getConfiguration().densityDpi;
+        int rotation = display.rotation;
+        Rect safeCutout = display.cutout;
+
+        int minSize = Math.min(display.size.x, display.size.y);
+        int swDp = (int) dpiFromPx(minSize, densityDpi);
+
+        Resources systemRes;
+        {
+            Configuration conf = new Configuration();
+            conf.smallestScreenWidthDp = swDp;
+            systemRes = context.createConfigurationContext(conf).getResources();
+        }
+
+        boolean isTablet = swDp >= MIN_TABLET_WIDTH;
+        boolean isTabletOrGesture = isTablet
+                || (Utilities.ATLEAST_R && isGestureNav(context));
+
+        int statusBarHeight = getDimenByName("status_bar_height", systemRes, 0);
+
+        int navBarHeightPortrait, navBarHeightLandscape, navbarWidthLandscape;
+
+        navBarHeightPortrait = isTablet
+                ? (mTaskbarDrawnInProcess
+                        ? 0 : systemRes.getDimensionPixelSize(R.dimen.taskbar_size))
+                : getDimenByName(NAVBAR_HEIGHT, systemRes, 0);
+
+        navBarHeightLandscape = isTablet
+                ? (mTaskbarDrawnInProcess
+                        ? 0 : systemRes.getDimensionPixelSize(R.dimen.taskbar_size))
+                : (isTabletOrGesture
+                        ? getDimenByName(NAVBAR_HEIGHT_LANDSCAPE, systemRes, 0) : 0);
+        navbarWidthLandscape = isTabletOrGesture
+                ? 0
+                : getDimenByName(NAVBAR_LANDSCAPE_LEFT_RIGHT_SIZE, systemRes, 0);
+
+        WindowBounds[] result = new WindowBounds[4];
+        Point tempSize = new Point();
+        for (int i = 0; i < 4; i++) {
+            int rotationChange = deltaRotation(rotation, i);
+            tempSize.set(display.size.x, display.size.y);
+            rotateSize(tempSize, rotationChange);
+            Rect bounds = new Rect(0, 0, tempSize.x, tempSize.y);
+
+            int navBarHeight, navbarWidth;
+            if (tempSize.y > tempSize.x) {
+                navBarHeight = navBarHeightPortrait;
+                navbarWidth = 0;
+            } else {
+                navBarHeight = navBarHeightLandscape;
+                navbarWidth = navbarWidthLandscape;
+            }
+
+            Rect insets = new Rect(safeCutout);
+            rotateRect(insets, rotationChange);
+            insets.top = Math.max(insets.top, statusBarHeight);
+            insets.bottom = Math.max(insets.bottom, navBarHeight);
+
+            if (i == Surface.ROTATION_270 || i == Surface.ROTATION_180) {
+                // On reverse landscape (and in rare-case when the natural orientation of the
+                // device is landscape), navigation bar is on the right.
+                insets.left = Math.max(insets.left, navbarWidth);
+            } else {
+                insets.right = Math.max(insets.right, navbarWidth);
+            }
+            result[i] = new WindowBounds(bounds, insets, i);
+        }
+        return result;
+    }
+
+    protected boolean isGestureNav(Context context) {
+        return ResourceUtils.getIntegerByName("config_navBarInteractionMode",
+                context.getResources(), INVALID_RESOURCE_HANDLE) == 2;
+    }
+
+    /**
+     * Returns a CachedDisplayInfo initialized for the current display
+     */
+    @TargetApi(Build.VERSION_CODES.S)
+    public CachedDisplayInfo getDisplayInfo(Display display) {
+        int rotation = display.getRotation();
+
+        Point size = new Point();
+        display.getRealSize(size);
+
+        Rect cutoutRect = new Rect();
+        if (Utilities.ATLEAST_S) {
+            DisplayCutout cutout = display.getCutout();
+            if (cutout != null) {
+                cutoutRect.set(cutout.getSafeInsetLeft(), cutout.getSafeInsetTop(),
+                        cutout.getSafeInsetRight(), cutout.getSafeInsetBottom());
+            }
+        }
+
+        return new CachedDisplayInfo(getDisplayId(display), size, rotation, cutoutRect);
+    }
+
+    /**
+     * Returns a unique ID representing the display
+     */
+    protected String getDisplayId(Display display) {
+        return Integer.toString(display.getDisplayId());
+    }
+
+    /**
+     * Returns rotation of the display associated with the context.
+     */
+    public int getRotation(Context context) {
+        Display d = null;
+        if (Utilities.ATLEAST_R) {
+            try {
+                d = context.getDisplay();
+            } catch (UnsupportedOperationException e) {
+                // Ignore
+            }
+        }
+        return d == null ? DisplayController.INSTANCE.get(context).getInfo().rotation
+                : d.getRotation();
+    }
+}