Introduce IInputMethodManagerGlobal (7f0c721f) · Commits · e / os / android_frameworks_base

core/java/com/android/internal/inputmethod/IInputMethodManagerGlobal.java

0 → 100644

+158 −0

Original line number	Diff line number	Diff line
		/*
		* 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.internal.inputmethod;

		import android.annotation.AnyThread;
		import android.annotation.NonNull;
		import android.annotation.Nullable;
		import android.annotation.RequiresNoPermission;
		import android.annotation.RequiresPermission;
		import android.content.Context;
		import android.os.RemoteException;
		import android.os.ServiceManager;

		import com.android.internal.view.IInputMethodManager;

		import java.util.function.Consumer;

		/**
		* A global wrapper to directly invoke {@link IInputMethodManager} IPCs.
		*
		* <p>All public static methods are guaranteed to be thread-safe.</p>
		*
		* <p>All public methods are guaranteed to do nothing when {@link IInputMethodManager} is
		* unavailable.</p>
		*/
		public final class IInputMethodManagerGlobal {
		@Nullable
		private static volatile IInputMethodManager sServiceCache = null;

		/**
		* @return {@code true} if {@link IInputMethodManager} is available.
		*/
		@AnyThread
		public static boolean isAvailable() {
		return getService() != null;
		}

		@AnyThread
		@Nullable
		private static IInputMethodManager getService() {
		IInputMethodManager service = sServiceCache;
		if (service == null) {
		service = IInputMethodManager.Stub.asInterface(
		ServiceManager.getService(Context.INPUT_METHOD_SERVICE));
		if (service == null) {
		return null;
		}
		sServiceCache = service;
		}
		return service;
		}

		@AnyThread
		private static void handleRemoteExceptionOrRethrow(@NonNull RemoteException e,
		@Nullable Consumer<RemoteException> exceptionHandler) {
		if (exceptionHandler != null) {
		exceptionHandler.accept(e);
		} else {
		throw e.rethrowFromSystemServer();
		}
		}

		/**
		* Invokes {@link IInputMethodManager#startProtoDump(byte[], int, String)}.
		*
		* @param protoDump client or service side information to be stored by the server
		* @param source where the information is coming from, refer to
		* {@link ImeTracing#IME_TRACING_FROM_CLIENT} and
		* {@link ImeTracing#IME_TRACING_FROM_IMS}
		* @param where where the information is coming from.
		* @param exceptionHandler an optional {@link RemoteException} handler.
		*/
		@RequiresNoPermission
		@AnyThread
		public static void startProtoDump(byte[] protoDump, int source, String where,
		@Nullable Consumer<RemoteException> exceptionHandler) {
		final IInputMethodManager service = getService();
		if (service == null) {
		return;
		}
		try {
		service.startProtoDump(protoDump, source, where);
		} catch (RemoteException e) {
		handleRemoteExceptionOrRethrow(e, exceptionHandler);
		}
		}

		/**
		* Invokes {@link IInputMethodManager#startImeTrace()}.
		*
		* @param exceptionHandler an optional {@link RemoteException} handler.
		*/
		@RequiresPermission(android.Manifest.permission.CONTROL_UI_TRACING)
		@AnyThread
		public static void startImeTrace(@Nullable Consumer<RemoteException> exceptionHandler) {
		final IInputMethodManager service = getService();
		if (service == null) {
		return;
		}
		try {
		service.startImeTrace();
		} catch (RemoteException e) {
		handleRemoteExceptionOrRethrow(e, exceptionHandler);
		}
		}

		/**
		* Invokes {@link IInputMethodManager#stopImeTrace()}.
		*
		* @param exceptionHandler an optional {@link RemoteException} handler.
		*/
		@RequiresPermission(android.Manifest.permission.CONTROL_UI_TRACING)
		@AnyThread
		public static void stopImeTrace(@Nullable Consumer<RemoteException> exceptionHandler) {
		final IInputMethodManager service = getService();
		if (service == null) {
		return;
		}
		try {
		service.stopImeTrace();
		} catch (RemoteException e) {
		handleRemoteExceptionOrRethrow(e, exceptionHandler);
		}
		}

		/**
		* Invokes {@link IInputMethodManager#isImeTraceEnabled()}.
		*
		* @return The return value of {@link IInputMethodManager#isImeTraceEnabled()}.
		*/
		@RequiresNoPermission
		@AnyThread
		public static boolean isImeTraceEnabled() {
		final IInputMethodManager service = getService();
		if (service == null) {
		return false;
		}
		try {
		return service.isImeTraceEnabled();
		} catch (RemoteException e) {
		throw e.rethrowFromSystemServer();
		}
		}
		}

core/java/com/android/internal/inputmethod/ImeTracing.java

+18 −32

Original line number	Diff line number	Diff line
		@@ -19,16 +19,10 @@ package com.android.internal.inputmethod;
		import android.annotation.Nullable;
		import android.annotation.RequiresPermission;
		import android.app.ActivityThread;
		import android.content.Context;
		import android.os.RemoteException;
		import android.os.ServiceManager;
		import android.os.ServiceManager.ServiceNotFoundException;
		import android.util.Log;
		import android.util.proto.ProtoOutputStream;
		import android.view.inputmethod.InputMethodManager;

		import com.android.internal.view.IInputMethodManager;

		import java.io.PrintWriter;

		/**
		@@ -49,16 +43,12 @@ public abstract class ImeTracing {

		private static ImeTracing sInstance;
		static boolean sEnabled = false;
		IInputMethodManager mService;

		private final boolean mIsAvailable = IInputMethodManagerGlobal.isAvailable();

		protected boolean mDumpInProgress;
		protected final Object mDumpInProgressLock = new Object();

		ImeTracing() throws ServiceNotFoundException {
		mService = IInputMethodManager.Stub.asInterface(
		ServiceManager.getServiceOrThrow(Context.INPUT_METHOD_SERVICE));
		}

		/**
		* Returns an instance of {@link ImeTracingServerImpl} when called from a server side class
		* and an instance of {@link ImeTracingClientImpl} when called from a client side class.
		@@ -68,11 +58,14 @@ public abstract class ImeTracing {
		*/
		public static ImeTracing getInstance() {
		if (sInstance == null) {
		if (isSystemProcess()) {
		sInstance = new ImeTracingServerImpl();
		} else {
		try {
		sInstance = isSystemProcess()
		? new ImeTracingServerImpl() : new ImeTracingClientImpl();
		} catch (RemoteException \| ServiceNotFoundException e) {
		Log.e(TAG, "Exception while creating ImeTracing instance", e);
		sInstance = new ImeTracingClientImpl();
		} catch (RuntimeException e) {
		Log.e(TAG, "Exception while creating ImeTracingClientImpl instance", e);
		}
		}
		}
		return sInstance;
		@@ -87,32 +80,25 @@ public abstract class ImeTracing {
		* and {@see #IME_TRACING_FROM_IMS}
		* @param where
		*/
		public void sendToService(byte[] protoDump, int source, String where) throws RemoteException {
		mService.startProtoDump(protoDump, source, where);
		public void sendToService(byte[] protoDump, int source, String where) {
		IInputMethodManagerGlobal.startProtoDump(protoDump, source, where,
		e -> Log.e(TAG, "Exception while sending ime-related dump to server", e));
		}

		/**
		* Calling {@link IInputMethodManager#startImeTrace()}} to capture IME trace.
		* Start IME trace.
		*/
		@RequiresPermission(android.Manifest.permission.CONTROL_UI_TRACING)
		public final void startImeTrace() {
		try {
		mService.startImeTrace();
		} catch (RemoteException e) {
		Log.e(TAG, "Could not start ime trace." + e);
		}
		IInputMethodManagerGlobal.startImeTrace(e -> Log.e(TAG, "Could not start ime trace.", e));
		}

		/**
		* Calling {@link IInputMethodManager#stopImeTrace()} to stop IME trace.
		* Stop IME trace.
		*/
		@RequiresPermission(android.Manifest.permission.CONTROL_UI_TRACING)
		public final void stopImeTrace() {
		try {
		mService.stopImeTrace();
		} catch (RemoteException e) {
		Log.e(TAG, "Could not stop ime trace." + e);
		}
		IInputMethodManagerGlobal.stopImeTrace(e -> Log.e(TAG, "Could not stop ime trace.", e));
		}

		/**
		@@ -193,7 +179,7 @@ public abstract class ImeTracing {
		* @return {@code true} if tracing is available, {@code false} otherwise.
		*/
		public boolean isAvailable() {
		return mService != null;
		return mIsAvailable;
		}

		/**

core/java/com/android/internal/inputmethod/ImeTracingClientImpl.java

+2 −9

Original line number	Diff line number	Diff line
		@@ -18,9 +18,6 @@ package com.android.internal.inputmethod;

		import android.annotation.NonNull;
		import android.annotation.Nullable;
		import android.os.RemoteException;
		import android.os.ServiceManager.ServiceNotFoundException;
		import android.util.Log;
		import android.util.proto.ProtoOutputStream;
		import android.view.inputmethod.InputMethodManager;

		@@ -30,8 +27,8 @@ import java.io.PrintWriter;
		* An implementation of {@link ImeTracing} for non system_server processes.
		*/
		class ImeTracingClientImpl extends ImeTracing {
		ImeTracingClientImpl() throws ServiceNotFoundException, RemoteException {
		sEnabled = mService.isImeTraceEnabled();
		ImeTracingClientImpl() {
		sEnabled = IInputMethodManagerGlobal.isImeTraceEnabled();
		}

		@Override
		@@ -56,8 +53,6 @@ class ImeTracingClientImpl extends ImeTracing {
		ProtoOutputStream proto = new ProtoOutputStream();
		immInstance.dumpDebug(proto, icProto);
		sendToService(proto.getBytes(), IME_TRACING_FROM_CLIENT, where);
		} catch (RemoteException e) {
		Log.e(TAG, "Exception while sending ime-related client dump to server", e);
		} finally {
		mDumpInProgress = false;
		}
		@@ -81,8 +76,6 @@ class ImeTracingClientImpl extends ImeTracing {
		ProtoOutputStream proto = new ProtoOutputStream();
		dumper.dumpToProto(proto, icProto);
		sendToService(proto.getBytes(), IME_TRACING_FROM_IMS, where);
		} catch (RemoteException e) {
		Log.e(TAG, "Exception while sending ime-related service dump to server", e);
		} finally {
		mDumpInProgress = false;
		}

core/java/com/android/internal/inputmethod/ImeTracingServerImpl.java

+1 −5

Original line number	Diff line number	Diff line
		@@ -19,8 +19,6 @@ package com.android.internal.inputmethod;
		import static android.os.Build.IS_USER;

		import android.annotation.Nullable;
		import android.os.RemoteException;
		import android.os.ServiceManager.ServiceNotFoundException;
		import android.os.SystemClock;
		import android.util.Log;
		import android.util.proto.ProtoOutputStream;
		@@ -71,7 +69,7 @@ class ImeTracingServerImpl extends ImeTracing {

		private final Object mEnabledLock = new Object();

		ImeTracingServerImpl() throws ServiceNotFoundException {
		ImeTracingServerImpl() {
		mBufferClients = new TraceBuffer<>(BUFFER_CAPACITY);
		mTraceFileClients = new File(TRACE_DIRNAME + TRACE_FILENAME_CLIENTS);
		mBufferIms = new TraceBuffer<>(BUFFER_CAPACITY);
		@@ -132,8 +130,6 @@ class ImeTracingServerImpl extends ImeTracing {

		try {
		sendToService(null, IME_TRACING_FROM_IMMS, where);
		} catch (RemoteException e) {
		Log.e(TAG, "Exception while sending ime-related manager service dump to server", e);
		} finally {
		mDumpInProgress = false;
		}

core/java/com/android/internal/view/IInputMethodManager.aidl

+1 −0

Original line number	Diff line number	Diff line
		@@ -123,6 +123,7 @@ interface IInputMethodManager {
		@JavaPassthrough(annotation="@android.annotation.RequiresNoPermission")
		void startProtoDump(in byte[] protoDump, int source, String where);

		@JavaPassthrough(annotation="@android.annotation.RequiresNoPermission")
		boolean isImeTraceEnabled();

		// Starts an ime trace.