Use Extensions to back Sidecar. (f770e852) · Commits · e / os / android_frameworks_base

libs/WindowManager/Jetpack/Android.bp

+17 −1

Original line number	Diff line number	Diff line
		@@ -35,7 +35,11 @@ java_library {
		"src/androidx/window/util/*/.java",
		"src/androidx/window/common/*/.java",
		],
		static_libs: ["window-sidecar"],
		static_libs: [
		"window-sidecar",
		"aconfig_androidx_window_sidecar_flags_lib",
		"androidx.window.extensions",
		],
		installable: true,
		sdk_version: "core_platform",
		system_ext_specific: true,
		@@ -54,6 +58,18 @@ prebuilt_etc {
		filename_from_src: true,
		}

		aconfig_declarations {
		name: "sidecar_flags",
		package: "androidx.window.sidecar.flags",
		container: "system",
		srcs: ["src/androidx/window/sidecar/flags/sidecar_flags.aconfig"],
		}

		java_aconfig_library {
		name: "aconfig_androidx_window_sidecar_flags_lib",
		aconfig_declarations: "sidecar_flags",
		}

		// Extensions
		java_library {
		name: "androidx.window.extensions",

libs/WindowManager/Jetpack/src/androidx/window/sidecar/SidecarExtensionsImpl.java

0 → 100644

+218 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2024 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 androidx.window.sidecar;

		import static android.hardware.devicestate.DeviceState.PROPERTY_FOLDABLE_HARDWARE_CONFIGURATION_FOLD_IN_HALF_OPEN;

		import android.app.Activity;
		import android.app.ActivityThread;
		import android.hardware.devicestate.DeviceState;
		import android.hardware.devicestate.DeviceStateManager;
		import android.os.IBinder;

		import androidx.annotation.NonNull;
		import androidx.window.extensions.layout.FoldingFeature;
		import androidx.window.extensions.layout.WindowLayoutComponent;
		import androidx.window.extensions.layout.WindowLayoutInfo;

		import java.util.ArrayList;
		import java.util.HashMap;
		import java.util.List;
		import java.util.Map;
		import java.util.Objects;
		import java.util.function.Consumer;

		public class SidecarExtensionsImpl implements SidecarInterface {

		private final WindowLayoutComponent mWindowLayoutComponent;
		private SidecarCallback mSidecarCallback;
		private final Map<IBinder, Consumer<WindowLayoutInfo>> mIBinderConsumerMap = new HashMap<>();
		private final DeviceStateManager mDeviceStateManager;
		private final DeviceStateManager.DeviceStateCallback mDeviceStateCallback =
		new DeviceStateCallback();

		public SidecarExtensionsImpl(WindowLayoutComponent windowLayoutComponent,
		DeviceStateManager deviceStateManager) {
		mWindowLayoutComponent = Objects.requireNonNull(windowLayoutComponent);
		mDeviceStateManager = Objects.requireNonNull(deviceStateManager);
		}

		@Override
		public void setSidecarCallback(@NonNull SidecarCallback callback) {
		mSidecarCallback = callback;
		}

		@NonNull
		@Override
		public SidecarWindowLayoutInfo getWindowLayoutInfo(@NonNull IBinder windowToken) {
		final Activity activity = computeActivity(windowToken);
		if (activity == null) {
		SidecarWindowLayoutInfo sidecarWindowLayoutInfo = new SidecarWindowLayoutInfo();
		sidecarWindowLayoutInfo.displayFeatures = new ArrayList<>();
		return sidecarWindowLayoutInfo;
		}
		final WindowLayoutInfo windowLayoutInfo = mWindowLayoutComponent
		.getCurrentWindowLayoutInfo(activity);
		return computeSidecarWindowLayoutInfo(windowLayoutInfo);
		}

		@Override
		public void onWindowLayoutChangeListenerAdded(@NonNull IBinder windowToken) {
		final Activity activity = computeActivity(windowToken);
		if (activity == null) {
		return;
		}
		final Consumer<WindowLayoutInfo> consumer = new CallbackAdapter(windowToken);
		mIBinderConsumerMap.put(windowToken, consumer);
		mWindowLayoutComponent.addWindowLayoutInfoListener(activity, consumer);
		}

		@Override
		public void onWindowLayoutChangeListenerRemoved(@NonNull IBinder windowToken) {
		final Consumer<WindowLayoutInfo> consumer = mIBinderConsumerMap.remove(windowToken);
		mWindowLayoutComponent.removeWindowLayoutInfoListener(consumer);
		}

		@NonNull
		@Override
		public SidecarDeviceState getDeviceState() {
		final Activity activity = getCurrentActivity();
		if (activity == null) {
		SidecarDeviceState state = new SidecarDeviceState();
		state.posture = SidecarDeviceState.POSTURE_OPENED;
		return state;
		}
		final WindowLayoutInfo windowLayoutInfo = mWindowLayoutComponent
		.getCurrentWindowLayoutInfo(activity);
		return computeDeviceState(windowLayoutInfo);
		}

		@Override
		public void onDeviceStateListenersChanged(boolean isEmpty) {
		if (isEmpty) {
		mDeviceStateManager.unregisterCallback(mDeviceStateCallback);
		} else {
		mDeviceStateManager.registerCallback(Runnable::run, mDeviceStateCallback);
		}
		}

		/**
		* Returns a {@link SidecarWindowLayoutInfo} that is translated from {@link WindowLayoutInfo}.
		*/
		public static SidecarWindowLayoutInfo computeSidecarWindowLayoutInfo(
		WindowLayoutInfo windowLayoutInfo) {
		final List<SidecarDisplayFeature> displayFeatureList = windowLayoutInfo.getDisplayFeatures()
		.stream()
		.filter((displayFeature -> displayFeature instanceof FoldingFeature))
		.map((displayFeature -> {
		FoldingFeature feature = (FoldingFeature) displayFeature;
		int type = feature.getType() == FoldingFeature.TYPE_FOLD
		? SidecarDisplayFeature.TYPE_FOLD
		: SidecarDisplayFeature.TYPE_HINGE;

		SidecarDisplayFeature sidecarDisplayFeature = new SidecarDisplayFeature();
		sidecarDisplayFeature.setRect(feature.getBounds());
		sidecarDisplayFeature.setType(type);
		return sidecarDisplayFeature;
		}))
		.toList();

		final SidecarWindowLayoutInfo sidecarWindowLayoutInfo = new SidecarWindowLayoutInfo();
		sidecarWindowLayoutInfo.displayFeatures = displayFeatureList;

		return sidecarWindowLayoutInfo;
		}

		/**
		* Returns a {@link SidecarDeviceState} that is extracted from the {@link WindowLayoutInfo}.
		*/
		public static SidecarDeviceState computeDeviceState(WindowLayoutInfo windowLayoutInfo) {
		final int posture = windowLayoutInfo.getDisplayFeatures().stream()
		.filter(displayFeature -> displayFeature instanceof FoldingFeature)
		.map(displayFeature ->
		((FoldingFeature) displayFeature).getState() == FoldingFeature.STATE_FLAT
		? SidecarDeviceState.POSTURE_OPENED
		: SidecarDeviceState.POSTURE_HALF_OPENED)
		.findFirst().orElse(SidecarDeviceState.POSTURE_OPENED);

		final SidecarDeviceState state = new SidecarDeviceState();
		state.posture = posture;
		return state;
		}

		/**
		* Returns the {@link Activity} associated with the {@link IBinder} token.
		*/
		public static Activity computeActivity(@NonNull IBinder token) {
		return ActivityThread.currentActivityThread().getActivity(token);
		}

		/**
		* Returns the last created {@link Activity}.
		*/
		private static Activity getCurrentActivity() {
		return ActivityThread.currentActivityThread().getLastCreatedActivity();
		}

		/**
		* A class to relay new values of {@link WindowLayoutInfo} to
		* {@link androidx.window.sidecar.SidecarInterface.SidecarCallback}.
		* @see WindowLayoutComponent#addWindowLayoutInfoListener(Activity, Consumer)
		*/
		final class CallbackAdapter implements Consumer<WindowLayoutInfo> {
		private final IBinder mWindowToken;


		CallbackAdapter(IBinder windowToken) {
		mWindowToken = Objects.requireNonNull(windowToken);
		}

		@Override
		public void accept(WindowLayoutInfo windowLayoutInfo) {
		final SidecarCallback callback = mSidecarCallback;
		if (callback == null) {
		return;
		}
		final SidecarWindowLayoutInfo sidecarWindowLayoutInfo =
		SidecarExtensionsImpl.computeSidecarWindowLayoutInfo(windowLayoutInfo);
		mSidecarCallback.onWindowLayoutChanged(mWindowToken, sidecarWindowLayoutInfo);
		}
		}

		/**
		* A class to translate the {@link DeviceState} into {@link SidecarDeviceState} and relays them
		* to the {@link androidx.window.sidecar.SidecarInterface.SidecarCallback}.
		*/
		final class DeviceStateCallback implements DeviceStateManager.DeviceStateCallback {

		@Override
		public void onDeviceStateChanged(@NonNull DeviceState state) {
		final SidecarCallback callback = mSidecarCallback;
		if (callback == null) {
		return;
		}
		int posture = SidecarDeviceState.POSTURE_OPENED;
		if (state.hasProperty(PROPERTY_FOLDABLE_HARDWARE_CONFIGURATION_FOLD_IN_HALF_OPEN)) {
		posture = SidecarDeviceState.POSTURE_HALF_OPENED;
		}

		final SidecarDeviceState deviceState = new SidecarDeviceState();
		deviceState.posture = posture;
		mSidecarCallback.onDeviceStateChanged(deviceState);
		}
		}
		}

libs/WindowManager/Jetpack/src/androidx/window/sidecar/SidecarProvider.java

+30 −3

Original line number	Diff line number	Diff line
		@@ -16,10 +16,18 @@

		package androidx.window.sidecar;

		import static androidx.window.sidecar.flags.Flags.mergeExtensionsSidecar;

		import android.content.Context;
		import android.hardware.devicestate.DeviceStateManager;
		import android.view.WindowManager;

		import androidx.annotation.NonNull;
		import androidx.annotation.Nullable;
		import androidx.window.extensions.WindowExtensionsProvider;
		import androidx.window.extensions.layout.WindowLayoutComponent;

		import java.util.Objects;

		/**
		* Provider class that will instantiate the library implementation. It must be included in the
		@@ -35,13 +43,32 @@ public class SidecarProvider {
		*/
		@Nullable
		public static SidecarInterface getSidecarImpl(Context context) {
		return isWindowExtensionsEnabled()
		? new SidecarImpl(context.getApplicationContext())
		: null;
		if (isWindowExtensionsEnabled()) {
		return getSidecarInterface(context);
		}
		return null;
		}

		private static SidecarInterface getSidecarInterface(Context context) {
		if (mergeExtensionsSidecar()) {
		WindowLayoutComponent windowLayoutComponent = WindowExtensionsProvider
		.getWindowExtensions()
		.getWindowLayoutComponent();
		DeviceStateManager deviceStateManager = getDeviceStateManager(context);
		return new SidecarExtensionsImpl(windowLayoutComponent, deviceStateManager);
		} else {
		return new SidecarImpl(context.getApplicationContext());
		}
		}

		@NonNull
		private static DeviceStateManager getDeviceStateManager(Context context) {
		return Objects.requireNonNull(context.getSystemService(DeviceStateManager.class));
		}

		/**
		* The support library will use this method to check API version compatibility.
		*
		* @return API version string in MAJOR.MINOR.PATCH-description format.
		*/
		@Nullable

libs/WindowManager/Jetpack/src/androidx/window/sidecar/flags/sidecar_flags.aconfig

0 → 100644

+12 −0

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		package: "androidx.window.sidecar.flags"
		container: "system"

		flag {
		name: "merge_extensions_sidecar"
		namespace: "windowing_sdk"
		description: "Update Sidecar to be backed by Extensions."
		bug: "347964255"
		metadata {
		purpose: PURPOSE_BUGFIX
		}
		}