Merge "Introduce WindowProviderService" into sc-dev (ac8d924d) · Commits · e / os / android_frameworks_base

core/api/test-current.txt

+7 −0

Original line number	Diff line number	Diff line
		@@ -3172,5 +3172,12 @@ package android.window {
		method @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_TASKS) public void applyTransaction(@NonNull android.window.WindowContainerTransaction);
		}

		@UiContext public abstract class WindowProviderService extends android.app.Service {
		ctor public WindowProviderService();
		method public final void attachToWindowToken(@NonNull android.os.IBinder);
		method @Nullable public android.os.Bundle getWindowContextOptions();
		method public abstract int getWindowType();
		}

		}

core/java/android/app/ActivityThread.java

+2 −1

Original line number	Diff line number	Diff line
		@@ -4390,11 +4390,12 @@ public final class ActivityThread extends ClientTransactionHandler
		try {
		if (localLOGV) Slog.v(TAG, "Creating service " + data.info.name);

		ContextImpl context = ContextImpl.createAppContext(this, packageInfo);
		Application app = packageInfo.makeApplication(false, mInstrumentation);
		java.lang.ClassLoader cl = packageInfo.getClassLoader();
		service = packageInfo.getAppFactory()
		.instantiateService(cl, data.info.name, data.intent);
		final ContextImpl context = ContextImpl.getImpl(service
		.createServiceBaseContext(this, packageInfo));
		// Service resources must be initialized with the same loaders as the application
		// context.
		context.getResources().addLoaders(

core/java/android/app/Service.java

+13 −0

Original line number	Diff line number	Diff line
		@@ -860,6 +860,19 @@ public abstract class Service extends ContextWrapper implements ComponentCallbac
		setContentCaptureOptions(application.getContentCaptureOptions());
		}

		/**
		* Creates the base {@link Context} of this {@link Service}.
		* Users may override this API to create customized base context.
		*
		* @see android.window.WindowProviderService WindowProviderService class for example
		* @see ContextWrapper#attachBaseContext(Context)
		*
		* @hide
		*/
		public Context createServiceBaseContext(ActivityThread mainThread, LoadedApk packageInfo) {
		return ContextImpl.createAppContext(mainThread, packageInfo);
		}

		/**
		* @hide
		* Clean up any references to avoid leaks.

core/java/android/window/WindowContextController.java

+1 −0

Original line number	Diff line number	Diff line
		@@ -105,6 +105,7 @@ public class WindowContextController {
		* a {@link com.android.server.wm.DisplayArea} by
		* {@link #attachToDisplayArea(int, int, Bundle)}.
		*
		* @see WindowProviderService#attachToWindowToken(IBinder))
		* @see IWindowManager#attachWindowContextToWindowToken(IBinder, IBinder)
		*/
		public void attachToWindowToken(IBinder windowToken) {

core/java/android/window/WindowProviderService.java

0 → 100644

+138 −0

Original line number	Diff line number	Diff line
		/*
		* 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 android.window;

		import static android.view.Display.DEFAULT_DISPLAY;

		import android.annotation.CallSuper;
		import android.annotation.NonNull;
		import android.annotation.Nullable;
		import android.annotation.SuppressLint;
		import android.annotation.TestApi;
		import android.annotation.UiContext;
		import android.app.ActivityThread;
		import android.app.LoadedApk;
		import android.app.Service;
		import android.content.Context;
		import android.hardware.display.DisplayManager;
		import android.os.Bundle;
		import android.os.IBinder;
		import android.view.Display;
		import android.view.WindowManager;
		import android.view.WindowManager.LayoutParams.WindowType;
		import android.view.WindowManagerImpl;

		// TODO(b/159767464): handle #onConfigurationChanged(Configuration)
		/**
		* A {@link Service} responsible for showing a non-activity window, such as software keyboards or
		* accessibility overlay windows. This {@link Service} has similar behavior to
		* {@link WindowContext}, but is represented as {@link Service}.
		*
		* @see android.inputmethodservice.InputMethodService
		* @see android.accessibilityservice.AccessibilityService
		*
		* @hide
		*/
		@TestApi
		@UiContext
		public abstract class WindowProviderService extends Service {

		private final WindowTokenClient mWindowToken = new WindowTokenClient();
		private final WindowContextController mController = new WindowContextController(mWindowToken);
		private WindowManager mWindowManager;

		/**
		* Returns the type of this {@link WindowProviderService}.
		* Each inheriting class must implement this method to provide the type of the window. It is
		* used similar to {@code type} of {@link Context#createWindowContext(int, Bundle)}
		*
		* @see Context#createWindowContext(int, Bundle)
		*
		* @hide
		*/
		@TestApi
		@SuppressLint("OnNameExpected")
		// Suppress the lint because it is not a callback and users should provide window type
		// so we cannot make it final.
		public abstract @WindowType int getWindowType();

		/**
		* Returns the option of this {@link WindowProviderService}.
		* Default is {@code null}. The inheriting class can implement this method to provide the
		* customization {@code option} of the window. It is used similar to {@code options} of
		* {@link Context#createWindowContext(int, Bundle)}
		*
		* @see Context#createWindowContext(int, Bundle)
		*
		* @hide
		*/
		@TestApi
		@SuppressLint({"OnNameExpected", "NullableCollection"})
		// Suppress the lint because it is not a callback and users may override this API to provide
		// launch option. Also, the return value of this API is null by default.
		@Nullable
		public Bundle getWindowContextOptions() {
		return null;
		}

		/**
		* Attaches this WindowProviderService to the {@code windowToken}.
		*
		* @hide
		*/
		@TestApi
		public final void attachToWindowToken(@NonNull IBinder windowToken) {
		mController.attachToWindowToken(windowToken);
		}

		/** @hide */
		@Override
		public final Context createServiceBaseContext(ActivityThread mainThread,
		LoadedApk packageInfo) {
		final Context context = super.createServiceBaseContext(mainThread, packageInfo);
		// Always associate with the default display at initialization.
		final Display defaultDisplay = context.getSystemService(DisplayManager.class)
		.getDisplay(DEFAULT_DISPLAY);
		return context.createTokenContext(mWindowToken, defaultDisplay);
		}

		@CallSuper
		@Override
		public void onCreate() {
		super.onCreate();
		mWindowToken.attachContext(this);
		mController.attachToDisplayArea(getWindowType(), getDisplayId(), getWindowContextOptions());
		mWindowManager = WindowManagerImpl.createWindowContextWindowManager(this);
		}

		@SuppressLint("OnNameExpected")
		@Override
		// Suppress the lint because ths is overridden from Context.
		public @Nullable Object getSystemService(@NonNull String name) {
		if (WINDOW_SERVICE.equals(name)) {
		return mWindowManager;
		}
		return super.getSystemService(name);
		}

		@CallSuper
		@Override
		public void onDestroy() {
		super.onDestroy();
		mController.detachIfNeeded();
		}
		}