core/java/android/view/WindowManagerImpl.java - platform/frameworks/base - Git at Google

 /*
  * Copyright (C) 2006 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 android.view;

 import static android.view.View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
 import static android.view.View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION;
 import static android.view.View.SYSTEM_UI_FLAG_VISIBLE;
 import static android.view.WindowManager.LayoutParams.FIRST_SUB_WINDOW;
 import static android.view.WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR;
 import static android.view.WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;
 import static android.view.WindowManager.LayoutParams.LAST_SUB_WINDOW;
 import static android.view.WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING;
 import static android.window.WindowProviderService.isWindowProviderService;

 import android.annotation.CallbackExecutor;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.UiContext;
 import android.app.ResourcesManager;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.res.Configuration;
 import android.graphics.Rect;
 import android.graphics.Region;
 import android.os.Bundle;
 import android.os.IBinder;
 import android.os.RemoteException;
 import android.os.StrictMode;
 import android.window.WindowContext;
 import android.window.WindowProvider;

 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.os.IResultReceiver;

 import java.util.List;
 import java.util.concurrent.Executor;
 import java.util.function.Consumer;

 /**
  * Provides low-level communication with the system window manager for
  * operations that are bound to a particular context, display or parent window.
  * Instances of this object are sensitive to the compatibility info associated
  * with the running application.
  *
  * This object implements the {@link ViewManager} interface,
  * allowing you to add any View subclass as a top-level window on the screen.
  * Additional window manager specific layout parameters are defined for
  * control over how windows are displayed.  It also implements the {@link WindowManager}
  * interface, allowing you to control the displays attached to the device.
  *
  * <p>Applications will not normally use WindowManager directly, instead relying
  * on the higher-level facilities in {@link android.app.Activity} and
  * {@link android.app.Dialog}.
  *
  * <p>Even for low-level window manager access, it is almost never correct to use
  * this class.  For example, {@link android.app.Activity#getWindowManager}
  * provides a window manager for adding windows that are associated with that
  * activity -- the window manager will not normally allow you to add arbitrary
  * windows that are not associated with an activity.
  *
  * @see WindowManager
  * @see WindowManagerGlobal
  * @hide
  */
 public final class WindowManagerImpl implements WindowManager {
     @UnsupportedAppUsage
     private final WindowManagerGlobal mGlobal = WindowManagerGlobal.getInstance();
     @UiContext
     @VisibleForTesting
     public final Context mContext;
     private final Window mParentWindow;

     /**
      * If {@link LayoutParams#token} is {@code null} and no parent window is specified, the value
      * of {@link LayoutParams#token} will be overridden to {@code mDefaultToken}.
      */
     private IBinder mDefaultToken;

     /**
      * This token will be set to {@link LayoutParams#mWindowContextToken} and used to receive
      * configuration changes from the server side.
      */
     @Nullable
     private final IBinder mWindowContextToken;

     public WindowManagerImpl(Context context) {
         this(context, null /* parentWindow */, null /* clientToken */);
     }

     private WindowManagerImpl(Context context, Window parentWindow,
             @Nullable IBinder windowContextToken) {
         mContext = context;
         mParentWindow = parentWindow;
         mWindowContextToken = windowContextToken;
     }

     public WindowManagerImpl createLocalWindowManager(Window parentWindow) {
         return new WindowManagerImpl(mContext, parentWindow, mWindowContextToken);
     }

     public WindowManagerImpl createPresentationWindowManager(Context displayContext) {
         return new WindowManagerImpl(displayContext, mParentWindow, mWindowContextToken);
     }

     /** Creates a {@link WindowManager} for a {@link WindowContext}. */
     public static WindowManager createWindowContextWindowManager(Context context) {
         final IBinder clientToken = context.getWindowContextToken();
         return new WindowManagerImpl(context, null /* parentWindow */, clientToken);
     }

     /**
      * Sets the window token to assign when none is specified by the client or
      * available from the parent window.
      *
      * @param token The default token to assign.
      */
     public void setDefaultToken(IBinder token) {
         mDefaultToken = token;
     }

     @Override
     public void addView(@NonNull View view, @NonNull ViewGroup.LayoutParams params) {
         applyTokens(params);
         mGlobal.addView(view, params, mContext.getDisplayNoVerify(), mParentWindow,
                 mContext.getUserId());
     }

     @Override
     public void updateViewLayout(@NonNull View view, @NonNull ViewGroup.LayoutParams params) {
         applyTokens(params);
         mGlobal.updateViewLayout(view, params);
     }

     private void applyTokens(@NonNull ViewGroup.LayoutParams params) {
         if (!(params instanceof WindowManager.LayoutParams)) {
             throw new IllegalArgumentException("Params must be WindowManager.LayoutParams");
         }
         final WindowManager.LayoutParams wparams = (WindowManager.LayoutParams) params;
         assertWindowContextTypeMatches(wparams.type);
         // Only use the default token if we don't have a parent window and a token.
         if (mDefaultToken != null && mParentWindow == null && wparams.token == null) {
             wparams.token = mDefaultToken;
         }
         wparams.mWindowContextToken = mWindowContextToken;
     }

     private void assertWindowContextTypeMatches(@LayoutParams.WindowType int windowType) {
         if (!(mContext instanceof WindowProvider)) {
             return;
         }
         // Don't need to check sub-window type because sub window should be allowed to be attached
         // to the parent window.
         if (windowType >= FIRST_SUB_WINDOW && windowType <= LAST_SUB_WINDOW) {
             return;
         }
         final WindowProvider windowProvider = (WindowProvider) mContext;
         if (windowProvider.getWindowType() == windowType) {
             return;
         }
         IllegalArgumentException exception = new IllegalArgumentException("Window type mismatch."
                 + " Window Context's window type is " + windowProvider.getWindowType()
                 + ", while LayoutParams' type is set to " + windowType + "."
                 + " Please create another Window Context via"
                 + " createWindowContext(getDisplay(), " + windowType + ", null)"
                 + " to add window with type:" + windowType);
         if (!isWindowProviderService(windowProvider.getWindowContextOptions())) {
             throw exception;
         }
         // Throw IncorrectCorrectViolation if the Window Context is allowed to provide multiple
         // window types. Usually it's because the Window Context is a WindowProviderService.
         StrictMode.onIncorrectContextUsed("WindowContext's window type must"
                 + " match type in WindowManager.LayoutParams", exception);
     }

     @Override
     public void removeView(View view) {
         mGlobal.removeView(view, false);
     }

     @Override
     public void removeViewImmediate(View view) {
         mGlobal.removeView(view, true);
     }

     @Override
     public void requestAppKeyboardShortcuts(
             final KeyboardShortcutsReceiver receiver, int deviceId) {
         IResultReceiver resultReceiver = new IResultReceiver.Stub() {
             @Override
             public void send(int resultCode, Bundle resultData) throws RemoteException {
                 List<KeyboardShortcutGroup> result =
                         resultData.getParcelableArrayList(PARCEL_KEY_SHORTCUTS_ARRAY);
                 receiver.onKeyboardShortcutsReceived(result);
             }
         };
         try {
             WindowManagerGlobal.getWindowManagerService()
                 .requestAppKeyboardShortcuts(resultReceiver, deviceId);
         } catch (RemoteException e) {
         }
     }

     @Override
     public Display getDefaultDisplay() {
         return mContext.getDisplayNoVerify();
     }

     @Override
     public Region getCurrentImeTouchRegion() {
         try {
             return WindowManagerGlobal.getWindowManagerService().getCurrentImeTouchRegion();
         } catch (RemoteException e) {
         }
         return null;
     }

     @Override
     public void setShouldShowWithInsecureKeyguard(int displayId, boolean shouldShow) {
         try {
             WindowManagerGlobal.getWindowManagerService()
                     .setShouldShowWithInsecureKeyguard(displayId, shouldShow);
         } catch (RemoteException e) {
         }
     }

     @Override
     public void setShouldShowSystemDecors(int displayId, boolean shouldShow) {
         try {
             WindowManagerGlobal.getWindowManagerService()
                     .setShouldShowSystemDecors(displayId, shouldShow);
         } catch (RemoteException e) {
         }
     }

     @Override
     public boolean shouldShowSystemDecors(int displayId) {
         try {
             return WindowManagerGlobal.getWindowManagerService().shouldShowSystemDecors(displayId);
         } catch (RemoteException e) {
         }
         return false;
     }

     @Override
     public void setDisplayImePolicy(int displayId, @DisplayImePolicy int imePolicy) {
         try {
             WindowManagerGlobal.getWindowManagerService().setDisplayImePolicy(displayId, imePolicy);
         } catch (RemoteException e) {
         }
     }

     @Override
     public @DisplayImePolicy int getDisplayImePolicy(int displayId) {
         try {
             return WindowManagerGlobal.getWindowManagerService().getDisplayImePolicy(displayId);
         } catch (RemoteException e) {
         }
         return DISPLAY_IME_POLICY_FALLBACK_DISPLAY;
     }

     @Override
     public WindowMetrics getCurrentWindowMetrics() {
         final Context context = mParentWindow != null ? mParentWindow.getContext() : mContext;
         final Rect bounds = getCurrentBounds(context);

         return new WindowMetrics(bounds, computeWindowInsets(bounds));
     }

     private static Rect getCurrentBounds(Context context) {
         synchronized (ResourcesManager.getInstance()) {
             return context.getResources().getConfiguration().windowConfiguration.getBounds();
         }
     }

     @Override
     public WindowMetrics getMaximumWindowMetrics() {
         final Context context = mParentWindow != null ? mParentWindow.getContext() : mContext;
         final Rect maxBounds = getMaximumBounds(context);

         return new WindowMetrics(maxBounds, computeWindowInsets(maxBounds));
     }

     private static Rect getMaximumBounds(Context context) {
         synchronized (ResourcesManager.getInstance()) {
             return context.getResources().getConfiguration().windowConfiguration.getMaxBounds();
         }
     }

     // TODO(b/150095967): Set window type to LayoutParams
     private WindowInsets computeWindowInsets(Rect bounds) {
         // Initialize params which used for obtaining all system insets.
         final WindowManager.LayoutParams params = new WindowManager.LayoutParams();
         params.flags = FLAG_LAYOUT_IN_SCREEN | FLAG_LAYOUT_INSET_DECOR;
         final Context context = (mParentWindow != null) ? mParentWindow.getContext() : mContext;
         params.token = Context.getToken(context);
         params.systemUiVisibility = SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                 | SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION;
         params.setFitInsetsTypes(0);
         params.setFitInsetsSides(0);

         return getWindowInsetsFromServer(params, bounds);
     }

     private WindowInsets getWindowInsetsFromServer(WindowManager.LayoutParams attrs, Rect bounds) {
         try {
             final InsetsState insetsState = new InsetsState();
             final boolean alwaysConsumeSystemBars = WindowManagerGlobal.getWindowManagerService()
                     .getWindowInsets(attrs, mContext.getDisplayId(), insetsState);
             final Configuration config = mContext.getResources().getConfiguration();
             final boolean isScreenRound = config.isScreenRound();
             final int windowingMode = config.windowConfiguration.getWindowingMode();
             return insetsState.calculateInsets(bounds, null /* ignoringVisibilityState*/,
                     isScreenRound, alwaysConsumeSystemBars, SOFT_INPUT_ADJUST_NOTHING, attrs.flags,
                     SYSTEM_UI_FLAG_VISIBLE, attrs.type, windowingMode, null /* typeSideMap */);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
     }

     @Override
     public void holdLock(IBinder token, int durationMs) {
         try {
             WindowManagerGlobal.getWindowManagerService().holdLock(token, durationMs);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
     }

     @Override
     public boolean isCrossWindowBlurEnabled() {
         return CrossWindowBlurListeners.getInstance().isCrossWindowBlurEnabled();
     }

     @Override
     public void addCrossWindowBlurEnabledListener(@NonNull Consumer<Boolean> listener) {
         addCrossWindowBlurEnabledListener(mContext.getMainExecutor(), listener);
     }

     @Override
     public void addCrossWindowBlurEnabledListener(@NonNull @CallbackExecutor Executor executor,
             @NonNull Consumer<Boolean> listener) {
         CrossWindowBlurListeners.getInstance().addListener(executor, listener);
     }

     @Override
     public void removeCrossWindowBlurEnabledListener(@NonNull Consumer<Boolean> listener) {
         CrossWindowBlurListeners.getInstance().removeListener(listener);
     }

     @Override
     public boolean isTaskSnapshotSupported() {
         try {
             return WindowManagerGlobal.getWindowManagerService().isTaskSnapshotSupported();
         } catch (RemoteException e) {
         }
         return false;
     }
 }
	/*
	* Copyright (C) 2006 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 android.view;

	import static android.view.View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
	import static android.view.View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION;
	import static android.view.View.SYSTEM_UI_FLAG_VISIBLE;
	import static android.view.WindowManager.LayoutParams.FIRST_SUB_WINDOW;
	import static android.view.WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR;
	import static android.view.WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;
	import static android.view.WindowManager.LayoutParams.LAST_SUB_WINDOW;
	import static android.view.WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING;
	import static android.window.WindowProviderService.isWindowProviderService;

	import android.annotation.CallbackExecutor;
	import android.annotation.NonNull;
	import android.annotation.Nullable;
	import android.annotation.UiContext;
	import android.app.ResourcesManager;
	import android.compat.annotation.UnsupportedAppUsage;
	import android.content.Context;
	import android.content.res.Configuration;
	import android.graphics.Rect;
	import android.graphics.Region;
	import android.os.Bundle;
	import android.os.IBinder;
	import android.os.RemoteException;
	import android.os.StrictMode;
	import android.window.WindowContext;
	import android.window.WindowProvider;

	import com.android.internal.annotations.VisibleForTesting;
	import com.android.internal.os.IResultReceiver;

	import java.util.List;
	import java.util.concurrent.Executor;
	import java.util.function.Consumer;

	/**
	* Provides low-level communication with the system window manager for
	* operations that are bound to a particular context, display or parent window.
	* Instances of this object are sensitive to the compatibility info associated
	* with the running application.
	*
	* This object implements the {@link ViewManager} interface,
	* allowing you to add any View subclass as a top-level window on the screen.
	* Additional window manager specific layout parameters are defined for
	* control over how windows are displayed. It also implements the {@link WindowManager}
	* interface, allowing you to control the displays attached to the device.
	*
	* <p>Applications will not normally use WindowManager directly, instead relying
	* on the higher-level facilities in {@link android.app.Activity} and
	* {@link android.app.Dialog}.
	*
	* <p>Even for low-level window manager access, it is almost never correct to use
	* this class. For example, {@link android.app.Activity#getWindowManager}
	* provides a window manager for adding windows that are associated with that
	* activity -- the window manager will not normally allow you to add arbitrary
	* windows that are not associated with an activity.
	*
	* @see WindowManager
	* @see WindowManagerGlobal
	* @hide
	*/
	public final class WindowManagerImpl implements WindowManager {
	@UnsupportedAppUsage
	private final WindowManagerGlobal mGlobal = WindowManagerGlobal.getInstance();
	@UiContext
	@VisibleForTesting
	public final Context mContext;
	private final Window mParentWindow;

	/**
	* If {@link LayoutParams#token} is {@code null} and no parent window is specified, the value
	* of {@link LayoutParams#token} will be overridden to {@code mDefaultToken}.
	*/
	private IBinder mDefaultToken;

	/**
	* This token will be set to {@link LayoutParams#mWindowContextToken} and used to receive
	* configuration changes from the server side.
	*/
	@Nullable
	private final IBinder mWindowContextToken;

	public WindowManagerImpl(Context context) {
	this(context, null /* parentWindow /, null / clientToken */);
	}

	private WindowManagerImpl(Context context, Window parentWindow,
	@Nullable IBinder windowContextToken) {
	mContext = context;
	mParentWindow = parentWindow;
	mWindowContextToken = windowContextToken;
	}

	public WindowManagerImpl createLocalWindowManager(Window parentWindow) {
	return new WindowManagerImpl(mContext, parentWindow, mWindowContextToken);
	}

	public WindowManagerImpl createPresentationWindowManager(Context displayContext) {
	return new WindowManagerImpl(displayContext, mParentWindow, mWindowContextToken);
	}

	/** Creates a {@link WindowManager} for a {@link WindowContext}. */
	public static WindowManager createWindowContextWindowManager(Context context) {
	final IBinder clientToken = context.getWindowContextToken();
	return new WindowManagerImpl(context, null /* parentWindow */, clientToken);
	}

	/**
	* Sets the window token to assign when none is specified by the client or
	* available from the parent window.
	*
	* @param token The default token to assign.
	*/
	public void setDefaultToken(IBinder token) {
	mDefaultToken = token;
	}

	@Override
	public void addView(@NonNull View view, @NonNull ViewGroup.LayoutParams params) {
	applyTokens(params);
	mGlobal.addView(view, params, mContext.getDisplayNoVerify(), mParentWindow,
	mContext.getUserId());
	}

	@Override
	public void updateViewLayout(@NonNull View view, @NonNull ViewGroup.LayoutParams params) {
	applyTokens(params);
	mGlobal.updateViewLayout(view, params);
	}

	private void applyTokens(@NonNull ViewGroup.LayoutParams params) {
	if (!(params instanceof WindowManager.LayoutParams)) {
	throw new IllegalArgumentException("Params must be WindowManager.LayoutParams");
	}
	final WindowManager.LayoutParams wparams = (WindowManager.LayoutParams) params;
	assertWindowContextTypeMatches(wparams.type);
	// Only use the default token if we don't have a parent window and a token.
	if (mDefaultToken != null && mParentWindow == null && wparams.token == null) {
	wparams.token = mDefaultToken;
	}
	wparams.mWindowContextToken = mWindowContextToken;
	}

	private void assertWindowContextTypeMatches(@LayoutParams.WindowType int windowType) {
	if (!(mContext instanceof WindowProvider)) {
	return;
	}
	// Don't need to check sub-window type because sub window should be allowed to be attached
	// to the parent window.
	if (windowType >= FIRST_SUB_WINDOW && windowType <= LAST_SUB_WINDOW) {
	return;
	}
	final WindowProvider windowProvider = (WindowProvider) mContext;
	if (windowProvider.getWindowType() == windowType) {
	return;
	}
	IllegalArgumentException exception = new IllegalArgumentException("Window type mismatch."
	+ " Window Context's window type is " + windowProvider.getWindowType()
	+ ", while LayoutParams' type is set to " + windowType + "."
	+ " Please create another Window Context via"
	+ " createWindowContext(getDisplay(), " + windowType + ", null)"
	+ " to add window with type:" + windowType);
	if (!isWindowProviderService(windowProvider.getWindowContextOptions())) {
	throw exception;
	}
	// Throw IncorrectCorrectViolation if the Window Context is allowed to provide multiple
	// window types. Usually it's because the Window Context is a WindowProviderService.
	StrictMode.onIncorrectContextUsed("WindowContext's window type must"
	+ " match type in WindowManager.LayoutParams", exception);
	}

	@Override
	public void removeView(View view) {
	mGlobal.removeView(view, false);
	}

	@Override
	public void removeViewImmediate(View view) {
	mGlobal.removeView(view, true);
	}

	@Override
	public void requestAppKeyboardShortcuts(
	final KeyboardShortcutsReceiver receiver, int deviceId) {
	IResultReceiver resultReceiver = new IResultReceiver.Stub() {
	@Override
	public void send(int resultCode, Bundle resultData) throws RemoteException {
	List<KeyboardShortcutGroup> result =
	resultData.getParcelableArrayList(PARCEL_KEY_SHORTCUTS_ARRAY);
	receiver.onKeyboardShortcutsReceived(result);
	}
	};
	try {
	WindowManagerGlobal.getWindowManagerService()
	.requestAppKeyboardShortcuts(resultReceiver, deviceId);
	} catch (RemoteException e) {
	}
	}

	@Override
	public Display getDefaultDisplay() {
	return mContext.getDisplayNoVerify();
	}

	@Override
	public Region getCurrentImeTouchRegion() {
	try {
	return WindowManagerGlobal.getWindowManagerService().getCurrentImeTouchRegion();
	} catch (RemoteException e) {
	}
	return null;
	}

	@Override
	public void setShouldShowWithInsecureKeyguard(int displayId, boolean shouldShow) {
	try {
	WindowManagerGlobal.getWindowManagerService()
	.setShouldShowWithInsecureKeyguard(displayId, shouldShow);
	} catch (RemoteException e) {
	}
	}

	@Override
	public void setShouldShowSystemDecors(int displayId, boolean shouldShow) {
	try {
	WindowManagerGlobal.getWindowManagerService()
	.setShouldShowSystemDecors(displayId, shouldShow);
	} catch (RemoteException e) {
	}
	}

	@Override
	public boolean shouldShowSystemDecors(int displayId) {
	try {
	return WindowManagerGlobal.getWindowManagerService().shouldShowSystemDecors(displayId);
	} catch (RemoteException e) {
	}
	return false;
	}

	@Override
	public void setDisplayImePolicy(int displayId, @DisplayImePolicy int imePolicy) {
	try {
	WindowManagerGlobal.getWindowManagerService().setDisplayImePolicy(displayId, imePolicy);
	} catch (RemoteException e) {
	}
	}

	@Override
	public @DisplayImePolicy int getDisplayImePolicy(int displayId) {
	try {
	return WindowManagerGlobal.getWindowManagerService().getDisplayImePolicy(displayId);
	} catch (RemoteException e) {
	}
	return DISPLAY_IME_POLICY_FALLBACK_DISPLAY;
	}

	@Override
	public WindowMetrics getCurrentWindowMetrics() {
	final Context context = mParentWindow != null ? mParentWindow.getContext() : mContext;
	final Rect bounds = getCurrentBounds(context);

	return new WindowMetrics(bounds, computeWindowInsets(bounds));
	}

	private static Rect getCurrentBounds(Context context) {
	synchronized (ResourcesManager.getInstance()) {
	return context.getResources().getConfiguration().windowConfiguration.getBounds();
	}
	}

	@Override
	public WindowMetrics getMaximumWindowMetrics() {
	final Context context = mParentWindow != null ? mParentWindow.getContext() : mContext;
	final Rect maxBounds = getMaximumBounds(context);

	return new WindowMetrics(maxBounds, computeWindowInsets(maxBounds));
	}

	private static Rect getMaximumBounds(Context context) {
	synchronized (ResourcesManager.getInstance()) {
	return context.getResources().getConfiguration().windowConfiguration.getMaxBounds();
	}
	}

	// TODO(b/150095967): Set window type to LayoutParams
	private WindowInsets computeWindowInsets(Rect bounds) {
	// Initialize params which used for obtaining all system insets.
	final WindowManager.LayoutParams params = new WindowManager.LayoutParams();
	params.flags = FLAG_LAYOUT_IN_SCREEN \| FLAG_LAYOUT_INSET_DECOR;
	final Context context = (mParentWindow != null) ? mParentWindow.getContext() : mContext;
	params.token = Context.getToken(context);
	params.systemUiVisibility = SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
	\| SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION;
	params.setFitInsetsTypes(0);
	params.setFitInsetsSides(0);

	return getWindowInsetsFromServer(params, bounds);
	}

	private WindowInsets getWindowInsetsFromServer(WindowManager.LayoutParams attrs, Rect bounds) {
	try {
	final InsetsState insetsState = new InsetsState();
	final boolean alwaysConsumeSystemBars = WindowManagerGlobal.getWindowManagerService()
	.getWindowInsets(attrs, mContext.getDisplayId(), insetsState);
	final Configuration config = mContext.getResources().getConfiguration();
	final boolean isScreenRound = config.isScreenRound();
	final int windowingMode = config.windowConfiguration.getWindowingMode();
	return insetsState.calculateInsets(bounds, null /* ignoringVisibilityState*/,
	isScreenRound, alwaysConsumeSystemBars, SOFT_INPUT_ADJUST_NOTHING, attrs.flags,
	SYSTEM_UI_FLAG_VISIBLE, attrs.type, windowingMode, null /* typeSideMap */);
	} catch (RemoteException e) {
	throw e.rethrowFromSystemServer();
	}
	}

	@Override
	public void holdLock(IBinder token, int durationMs) {
	try {
	WindowManagerGlobal.getWindowManagerService().holdLock(token, durationMs);
	} catch (RemoteException e) {
	throw e.rethrowFromSystemServer();
	}
	}

	@Override
	public boolean isCrossWindowBlurEnabled() {
	return CrossWindowBlurListeners.getInstance().isCrossWindowBlurEnabled();
	}

	@Override
	public void addCrossWindowBlurEnabledListener(@NonNull Consumer<Boolean> listener) {
	addCrossWindowBlurEnabledListener(mContext.getMainExecutor(), listener);
	}

	@Override
	public void addCrossWindowBlurEnabledListener(@NonNull @CallbackExecutor Executor executor,
	@NonNull Consumer<Boolean> listener) {
	CrossWindowBlurListeners.getInstance().addListener(executor, listener);
	}

	@Override
	public void removeCrossWindowBlurEnabledListener(@NonNull Consumer<Boolean> listener) {
	CrossWindowBlurListeners.getInstance().removeListener(listener);
	}

	@Override
	public boolean isTaskSnapshotSupported() {
	try {
	return WindowManagerGlobal.getWindowManagerService().isTaskSnapshotSupported();
	} catch (RemoteException e) {
	}
	return false;
	}
	}