Implement getServiceComponentName API for Content Capture (addabbaf) · Commits · e / os / android_frameworks_base

core/java/android/view/contentcapture/ContentCaptureManager.java

+35 −2

Original line number	Diff line number	Diff line
		@@ -15,6 +15,8 @@
		*/
		package android.view.contentcapture;

		import static com.android.internal.util.function.pooled.PooledLambda.obtainMessage;

		import android.annotation.NonNull;
		import android.annotation.Nullable;
		import android.annotation.SystemService;
		@@ -24,9 +26,12 @@ import android.content.Context;
		import android.os.Handler;
		import android.os.HandlerThread;
		import android.os.IBinder;
		import android.os.RemoteException;
		import android.util.Log;

		import com.android.internal.os.IResultReceiver;
		import com.android.internal.util.Preconditions;
		import com.android.internal.util.SyncResultReceiver;

		import java.io.PrintWriter;
		import java.util.concurrent.atomic.AtomicBoolean;
		@@ -48,6 +53,11 @@ public final class ContentCaptureManager {

		private static final String BG_THREAD_NAME = "intel_svc_streamer_thread";

		/**
		* Timeout for calls to system_server.
		*/
		private static final int SYNC_CALLS_TIMEOUT_MS = 5000;

		// TODO(b/121044306): define a way to dynamically set them(for example, using settings?)
		static final boolean VERBOSE = false;
		static final boolean DEBUG = true; // STOPSHIP if not set to false
		@@ -142,9 +152,22 @@ public final class ContentCaptureManager {
		*/
		@Nullable
		public ComponentName getServiceComponentName() {
		//TODO(b/121047489): implement
		if (!isContentCaptureEnabled()) {
		return null;
		}
		// Wait for system server to return the component name.
		final SyncResultReceiver resultReceiver = new SyncResultReceiver(SYNC_CALLS_TIMEOUT_MS);
		mHandler.sendMessage(obtainMessage(
		ContentCaptureManager::handleReceiverServiceComponentName,
		this, mContext.getUserId(), resultReceiver));

		try {
		return resultReceiver.getParcelableResult();
		} catch (RemoteException e) {
		// Unable to retrieve component name in a reasonable amount of time.
		throw e.rethrowFromSystemServer();
		}
		}

		/**
		* Checks whether content capture is enabled for this activity.
		@@ -191,4 +214,14 @@ public final class ContentCaptureManager {
		pw.print(prefix); pw.println("No sessions");
		}
		}


		/** Retrieves the component name of the target content capture service through system_server. */
		private void handleReceiverServiceComponentName(int userId, IResultReceiver resultReceiver) {
		try {
		mService.getReceiverServiceComponentName(userId, resultReceiver);
		} catch (RemoteException e) {
		Log.w(TAG, "Unable to retrieve service component name: " + e);
		}
		}
		}

core/java/android/view/contentcapture/IContentCaptureManager.aidl

+21 −0

Original line number	Diff line number	Diff line
		@@ -32,7 +32,28 @@ import java.util.List;
		* @hide
		*/
		oneway interface IContentCaptureManager {
		/**
		* Starts a new session for the provided {@code userId} running as part of the
		* app's activity identified by {@code activityToken}/{@code componentName}.
		*
		* @param sessionId Unique session id as provided by the app.
		* @param flags Meta flags that enable or disable content capture (see
		* {@link IContentCaptureContext#flags}).
		*/
		void startSession(int userId, IBinder activityToken, in ComponentName componentName,
		String sessionId, int flags, in IResultReceiver result);

		/**
		* Marks the end of a session for the provided {@code userId} identified by
		* the corresponding {@code startSession}'s {@code sessionId}.
		*/
		void finishSession(int userId, String sessionId);

		/**
		* Returns the content capture service's component name (if enabled and
		* connected).
		* @param Receiver of the content capture service's @{code ComponentName}
		* provided {@code Bundle} with key "{@code EXTRA}".
		*/
		void getReceiverServiceComponentName(int userId, in IResultReceiver result);
		}

services/contentcapture/java/com/android/server/contentcapture/ContentCaptureManagerService.java

+20 −2

Original line number	Diff line number	Diff line
		@@ -39,6 +39,7 @@ import com.android.internal.annotations.GuardedBy;
		import com.android.internal.os.IResultReceiver;
		import com.android.internal.util.DumpUtils;
		import com.android.internal.util.Preconditions;
		import com.android.internal.util.SyncResultReceiver;
		import com.android.server.LocalServices;
		import com.android.server.infra.AbstractMasterSystemService;
		import com.android.server.infra.FrameworkResourcesServiceNameResolver;
		@@ -50,8 +51,9 @@ import java.util.ArrayList;
		/**
		* A service used to observe the contents of the screen.
		*
		* <p>The data collected by this service can be analyzed and combined with other sources to provide
		* contextual data in other areas of the system such as Autofill.
		* <p>The data collected by this service can be analyzed on-device and combined
		* with other sources to provide contextual data in other areas of the system
		* such as Autofill.
		*/
		public final class ContentCaptureManagerService extends
		AbstractMasterSystemService<ContentCaptureManagerService, ContentCapturePerUserService> {
		@@ -195,6 +197,22 @@ public final class ContentCaptureManagerService extends
		}
		}

		@Override
		public void getReceiverServiceComponentName(@UserIdInt int userId,
		IResultReceiver receiver) {
		ComponentName connectedServiceComponentName;
		synchronized (mLock) {
		final ContentCapturePerUserService service = getServiceForUserLocked(userId);
		connectedServiceComponentName = service.getServiceComponentName();
		}
		try {
		receiver.send(0, SyncResultReceiver.bundleFor(connectedServiceComponentName));
		} catch (RemoteException e) {
		// Ignore exception as we need to be resilient against app behavior.
		Slog.w(TAG, "Unable to send service component name: " + e);
		}
		}

		@Override
		public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
		if (!DumpUtils.checkDumpPermission(getContext(), TAG, pw)) return;