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M7350/base/services/java/com/android/server/InputMethodManagerService.java

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M7350v1_en_gpl
2024-09-09 08:52:07 +00:00
/*
* Copyright (C) 2006-2008 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.server;
import com.android.internal.content.PackageMonitor;
import com.android.internal.os.HandlerCaller;
import com.android.internal.view.IInputContext;
import com.android.internal.view.IInputMethod;
import com.android.internal.view.IInputMethodCallback;
import com.android.internal.view.IInputMethodClient;
import com.android.internal.view.IInputMethodManager;
import com.android.internal.view.IInputMethodSession;
import com.android.internal.view.InputBindResult;
import com.android.server.StatusBarManagerService;
import org.xmlpull.v1.XmlPullParserException;
import android.app.ActivityManagerNative;
import android.app.AlertDialog;
import android.app.PendingIntent;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.IntentFilter;
import android.content.DialogInterface.OnCancelListener;
import android.content.Intent;
import android.content.ServiceConnection;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.pm.ServiceInfo;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.database.ContentObserver;
import android.os.Binder;
import android.os.Handler;
import android.os.IBinder;
import android.os.IInterface;
import android.os.Message;
import android.os.Parcel;
import android.os.RemoteException;
import android.os.ResultReceiver;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.provider.Settings;
import android.provider.Settings.Secure;
import android.text.TextUtils;
import android.util.EventLog;
import android.util.Slog;
import android.util.PrintWriterPrinter;
import android.util.Printer;
import android.view.IWindowManager;
import android.view.WindowManager;
import android.view.inputmethod.InputBinding;
import android.view.inputmethod.InputMethod;
import android.view.inputmethod.InputMethodInfo;
import android.view.inputmethod.InputMethodManager;
import android.view.inputmethod.EditorInfo;
import java.io.FileDescriptor;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.Collator;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
/**
* This class provides a system service that manages input methods.
*/
public class InputMethodManagerService extends IInputMethodManager.Stub
implements ServiceConnection, Handler.Callback {
static final boolean DEBUG = false;
static final String TAG = "InputManagerService";
static final int MSG_SHOW_IM_PICKER = 1;
static final int MSG_UNBIND_INPUT = 1000;
static final int MSG_BIND_INPUT = 1010;
static final int MSG_SHOW_SOFT_INPUT = 1020;
static final int MSG_HIDE_SOFT_INPUT = 1030;
static final int MSG_ATTACH_TOKEN = 1040;
static final int MSG_CREATE_SESSION = 1050;
static final int MSG_START_INPUT = 2000;
static final int MSG_RESTART_INPUT = 2010;
static final int MSG_UNBIND_METHOD = 3000;
static final int MSG_BIND_METHOD = 3010;
static final long TIME_TO_RECONNECT = 10*1000;
final Context mContext;
final Handler mHandler;
final SettingsObserver mSettingsObserver;
final StatusBarManagerService mStatusBar;
final IWindowManager mIWindowManager;
final HandlerCaller mCaller;
final InputBindResult mNoBinding = new InputBindResult(null, null, -1);
// All known input methods. mMethodMap also serves as the global
// lock for this class.
final ArrayList<InputMethodInfo> mMethodList
= new ArrayList<InputMethodInfo>();
final HashMap<String, InputMethodInfo> mMethodMap
= new HashMap<String, InputMethodInfo>();
final TextUtils.SimpleStringSplitter mStringColonSplitter
= new TextUtils.SimpleStringSplitter(':');
class SessionState {
final ClientState client;
final IInputMethod method;
final IInputMethodSession session;
@Override
public String toString() {
return "SessionState{uid " + client.uid + " pid " + client.pid
+ " method " + Integer.toHexString(
System.identityHashCode(method))
+ " session " + Integer.toHexString(
System.identityHashCode(session))
+ "}";
}
SessionState(ClientState _client, IInputMethod _method,
IInputMethodSession _session) {
client = _client;
method = _method;
session = _session;
}
}
class ClientState {
final IInputMethodClient client;
final IInputContext inputContext;
final int uid;
final int pid;
final InputBinding binding;
boolean sessionRequested;
SessionState curSession;
@Override
public String toString() {
return "ClientState{" + Integer.toHexString(
System.identityHashCode(this)) + " uid " + uid
+ " pid " + pid + "}";
}
ClientState(IInputMethodClient _client, IInputContext _inputContext,
int _uid, int _pid) {
client = _client;
inputContext = _inputContext;
uid = _uid;
pid = _pid;
binding = new InputBinding(null, inputContext.asBinder(), uid, pid);
}
}
final HashMap<IBinder, ClientState> mClients
= new HashMap<IBinder, ClientState>();
/**
* Set once the system is ready to run third party code.
*/
boolean mSystemReady;
/**
* Id of the currently selected input method.
*/
String mCurMethodId;
/**
* The current binding sequence number, incremented every time there is
* a new bind performed.
*/
int mCurSeq;
/**
* The client that is currently bound to an input method.
*/
ClientState mCurClient;
/**
* The last window token that gained focus.
*/
IBinder mCurFocusedWindow;
/**
* The input context last provided by the current client.
*/
IInputContext mCurInputContext;
/**
* The attributes last provided by the current client.
*/
EditorInfo mCurAttribute;
/**
* The input method ID of the input method service that we are currently
* connected to or in the process of connecting to.
*/
String mCurId;
/**
* Set to true if our ServiceConnection is currently actively bound to
* a service (whether or not we have gotten its IBinder back yet).
*/
boolean mHaveConnection;
/**
* Set if the client has asked for the input method to be shown.
*/
boolean mShowRequested;
/**
* Set if we were explicitly told to show the input method.
*/
boolean mShowExplicitlyRequested;
/**
* Set if we were forced to be shown.
*/
boolean mShowForced;
/**
* Set if we last told the input method to show itself.
*/
boolean mInputShown;
/**
* The Intent used to connect to the current input method.
*/
Intent mCurIntent;
/**
* The token we have made for the currently active input method, to
* identify it in the future.
*/
IBinder mCurToken;
/**
* If non-null, this is the input method service we are currently connected
* to.
*/
IInputMethod mCurMethod;
/**
* Time that we last initiated a bind to the input method, to determine
* if we should try to disconnect and reconnect to it.
*/
long mLastBindTime;
/**
* Have we called mCurMethod.bindInput()?
*/
boolean mBoundToMethod;
/**
* Currently enabled session. Only touched by service thread, not
* protected by a lock.
*/
SessionState mEnabledSession;
/**
* True if the screen is on. The value is true initially.
*/
boolean mScreenOn = true;
AlertDialog.Builder mDialogBuilder;
AlertDialog mSwitchingDialog;
InputMethodInfo[] mIms;
CharSequence[] mItems;
class SettingsObserver extends ContentObserver {
SettingsObserver(Handler handler) {
super(handler);
ContentResolver resolver = mContext.getContentResolver();
resolver.registerContentObserver(Settings.Secure.getUriFor(
Settings.Secure.DEFAULT_INPUT_METHOD), false, this);
}
@Override public void onChange(boolean selfChange) {
synchronized (mMethodMap) {
updateFromSettingsLocked();
}
}
}
class ScreenOnOffReceiver extends android.content.BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) {
mScreenOn = true;
} else if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
mScreenOn = false;
} else if (intent.getAction().equals(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)) {
hideInputMethodMenu();
return;
} else {
Slog.w(TAG, "Unexpected intent " + intent);
}
// Inform the current client of the change in active status
try {
if (mCurClient != null && mCurClient.client != null) {
mCurClient.client.setActive(mScreenOn);
}
} catch (RemoteException e) {
Slog.w(TAG, "Got RemoteException sending 'screen on/off' notification to pid "
+ mCurClient.pid + " uid " + mCurClient.uid);
}
}
}
class MyPackageMonitor extends PackageMonitor {
@Override
public boolean onHandleForceStop(Intent intent, String[] packages, int uid, boolean doit) {
synchronized (mMethodMap) {
String curInputMethodId = Settings.Secure.getString(mContext
.getContentResolver(), Settings.Secure.DEFAULT_INPUT_METHOD);
final int N = mMethodList.size();
if (curInputMethodId != null) {
for (int i=0; i<N; i++) {
InputMethodInfo imi = mMethodList.get(i);
if (imi.getId().equals(curInputMethodId)) {
for (String pkg : packages) {
if (imi.getPackageName().equals(pkg)) {
if (!doit) {
return true;
}
Settings.Secure.putString(mContext.getContentResolver(),
Settings.Secure.DEFAULT_INPUT_METHOD, "");
chooseNewDefaultIMELocked();
return true;
}
}
}
}
}
}
return false;
}
@Override
public void onSomePackagesChanged() {
synchronized (mMethodMap) {
InputMethodInfo curIm = null;
String curInputMethodId = Settings.Secure.getString(mContext
.getContentResolver(), Settings.Secure.DEFAULT_INPUT_METHOD);
final int N = mMethodList.size();
if (curInputMethodId != null) {
for (int i=0; i<N; i++) {
InputMethodInfo imi = mMethodList.get(i);
if (imi.getId().equals(curInputMethodId)) {
curIm = imi;
}
int change = isPackageDisappearing(imi.getPackageName());
if (change == PACKAGE_TEMPORARY_CHANGE
|| change == PACKAGE_PERMANENT_CHANGE) {
Slog.i(TAG, "Input method uninstalled, disabling: "
+ imi.getComponent());
setInputMethodEnabledLocked(imi.getId(), false);
}
}
}
buildInputMethodListLocked(mMethodList, mMethodMap);
boolean changed = false;
if (curIm != null) {
int change = isPackageDisappearing(curIm.getPackageName());
if (change == PACKAGE_TEMPORARY_CHANGE
|| change == PACKAGE_PERMANENT_CHANGE) {
ServiceInfo si = null;
try {
si = mContext.getPackageManager().getServiceInfo(
curIm.getComponent(), 0);
} catch (PackageManager.NameNotFoundException ex) {
}
if (si == null) {
// Uh oh, current input method is no longer around!
// Pick another one...
Slog.i(TAG, "Current input method removed: " + curInputMethodId);
if (!chooseNewDefaultIMELocked()) {
changed = true;
curIm = null;
curInputMethodId = "";
Slog.i(TAG, "Unsetting current input method");
Settings.Secure.putString(mContext.getContentResolver(),
Settings.Secure.DEFAULT_INPUT_METHOD,
curInputMethodId);
}
}
}
}
if (curIm == null) {
// We currently don't have a default input method... is
// one now available?
changed = chooseNewDefaultIMELocked();
}
if (changed) {
updateFromSettingsLocked();
}
}
}
}
class MethodCallback extends IInputMethodCallback.Stub {
final IInputMethod mMethod;
MethodCallback(IInputMethod method) {
mMethod = method;
}
public void finishedEvent(int seq, boolean handled) throws RemoteException {
}
public void sessionCreated(IInputMethodSession session) throws RemoteException {
onSessionCreated(mMethod, session);
}
}
public InputMethodManagerService(Context context, StatusBarManagerService statusBar) {
mContext = context;
mHandler = new Handler(this);
mIWindowManager = IWindowManager.Stub.asInterface(
ServiceManager.getService(Context.WINDOW_SERVICE));
mCaller = new HandlerCaller(context, new HandlerCaller.Callback() {
public void executeMessage(Message msg) {
handleMessage(msg);
}
});
(new MyPackageMonitor()).register(mContext, true);
IntentFilter screenOnOffFilt = new IntentFilter();
screenOnOffFilt.addAction(Intent.ACTION_SCREEN_ON);
screenOnOffFilt.addAction(Intent.ACTION_SCREEN_OFF);
screenOnOffFilt.addAction(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
mContext.registerReceiver(new ScreenOnOffReceiver(), screenOnOffFilt);
mStatusBar = statusBar;
statusBar.setIconVisibility("ime", false);
buildInputMethodListLocked(mMethodList, mMethodMap);
final String enabledStr = Settings.Secure.getString(
mContext.getContentResolver(),
Settings.Secure.ENABLED_INPUT_METHODS);
Slog.i(TAG, "Enabled input methods: " + enabledStr);
final String defaultIme = Settings.Secure.getString(mContext
.getContentResolver(), Settings.Secure.DEFAULT_INPUT_METHOD);
if (enabledStr == null || TextUtils.isEmpty(defaultIme)) {
Slog.i(TAG, "Enabled input methods or default IME has not been set, enabling all");
InputMethodInfo defIm = null;
StringBuilder sb = new StringBuilder(256);
final int N = mMethodList.size();
for (int i=0; i<N; i++) {
InputMethodInfo imi = mMethodList.get(i);
Slog.i(TAG, "Adding: " + imi.getId());
if (i > 0) sb.append(':');
sb.append(imi.getId());
if (defIm == null && imi.getIsDefaultResourceId() != 0) {
try {
Resources res = mContext.createPackageContext(
imi.getPackageName(), 0).getResources();
if (res.getBoolean(imi.getIsDefaultResourceId())) {
defIm = imi;
Slog.i(TAG, "Selected default: " + imi.getId());
}
} catch (PackageManager.NameNotFoundException ex) {
} catch (Resources.NotFoundException ex) {
}
}
}
if (defIm == null && N > 0) {
defIm = mMethodList.get(0);
Slog.i(TAG, "No default found, using " + defIm.getId());
}
Settings.Secure.putString(mContext.getContentResolver(),
Settings.Secure.ENABLED_INPUT_METHODS, sb.toString());
if (defIm != null) {
Settings.Secure.putString(mContext.getContentResolver(),
Settings.Secure.DEFAULT_INPUT_METHOD, defIm.getId());
}
}
mSettingsObserver = new SettingsObserver(mHandler);
updateFromSettingsLocked();
}
@Override
public boolean onTransact(int code, Parcel data, Parcel reply, int flags)
throws RemoteException {
try {
return super.onTransact(code, data, reply, flags);
} catch (RuntimeException e) {
// The input method manager only throws security exceptions, so let's
// log all others.
if (!(e instanceof SecurityException)) {
Slog.e(TAG, "Input Method Manager Crash", e);
}
throw e;
}
}
public void systemReady() {
synchronized (mMethodMap) {
if (!mSystemReady) {
mSystemReady = true;
try {
startInputInnerLocked();
} catch (RuntimeException e) {
Slog.w(TAG, "Unexpected exception", e);
}
}
}
}
public List<InputMethodInfo> getInputMethodList() {
synchronized (mMethodMap) {
return new ArrayList<InputMethodInfo>(mMethodList);
}
}
public List<InputMethodInfo> getEnabledInputMethodList() {
synchronized (mMethodMap) {
return getEnabledInputMethodListLocked();
}
}
List<InputMethodInfo> getEnabledInputMethodListLocked() {
final ArrayList<InputMethodInfo> res = new ArrayList<InputMethodInfo>();
final String enabledStr = Settings.Secure.getString(
mContext.getContentResolver(),
Settings.Secure.ENABLED_INPUT_METHODS);
if (enabledStr != null) {
final TextUtils.SimpleStringSplitter splitter = mStringColonSplitter;
splitter.setString(enabledStr);
while (splitter.hasNext()) {
InputMethodInfo info = mMethodMap.get(splitter.next());
if (info != null) {
res.add(info);
}
}
}
return res;
}
public void addClient(IInputMethodClient client,
IInputContext inputContext, int uid, int pid) {
synchronized (mMethodMap) {
mClients.put(client.asBinder(), new ClientState(client,
inputContext, uid, pid));
}
}
public void removeClient(IInputMethodClient client) {
synchronized (mMethodMap) {
mClients.remove(client.asBinder());
}
}
void executeOrSendMessage(IInterface target, Message msg) {
if (target.asBinder() instanceof Binder) {
mCaller.sendMessage(msg);
} else {
handleMessage(msg);
msg.recycle();
}
}
void unbindCurrentClientLocked() {
if (mCurClient != null) {
if (DEBUG) Slog.v(TAG, "unbindCurrentInputLocked: client = "
+ mCurClient.client.asBinder());
if (mBoundToMethod) {
mBoundToMethod = false;
if (mCurMethod != null) {
executeOrSendMessage(mCurMethod, mCaller.obtainMessageO(
MSG_UNBIND_INPUT, mCurMethod));
}
}
executeOrSendMessage(mCurClient.client, mCaller.obtainMessageIO(
MSG_UNBIND_METHOD, mCurSeq, mCurClient.client));
mCurClient.sessionRequested = false;
// Call setActive(false) on the old client
try {
mCurClient.client.setActive(false);
} catch (RemoteException e) {
Slog.w(TAG, "Got RemoteException sending setActive(false) notification to pid "
+ mCurClient.pid + " uid " + mCurClient.uid);
}
mCurClient = null;
hideInputMethodMenuLocked();
}
}
private int getImeShowFlags() {
int flags = 0;
if (mShowForced) {
flags |= InputMethod.SHOW_FORCED
| InputMethod.SHOW_EXPLICIT;
} else if (mShowExplicitlyRequested) {
flags |= InputMethod.SHOW_EXPLICIT;
}
return flags;
}
private int getAppShowFlags() {
int flags = 0;
if (mShowForced) {
flags |= InputMethodManager.SHOW_FORCED;
} else if (!mShowExplicitlyRequested) {
flags |= InputMethodManager.SHOW_IMPLICIT;
}
return flags;
}
InputBindResult attachNewInputLocked(boolean initial, boolean needResult) {
if (!mBoundToMethod) {
executeOrSendMessage(mCurMethod, mCaller.obtainMessageOO(
MSG_BIND_INPUT, mCurMethod, mCurClient.binding));
mBoundToMethod = true;
}
final SessionState session = mCurClient.curSession;
if (initial) {
executeOrSendMessage(session.method, mCaller.obtainMessageOOO(
MSG_START_INPUT, session, mCurInputContext, mCurAttribute));
} else {
executeOrSendMessage(session.method, mCaller.obtainMessageOOO(
MSG_RESTART_INPUT, session, mCurInputContext, mCurAttribute));
}
if (mShowRequested) {
if (DEBUG) Slog.v(TAG, "Attach new input asks to show input");
showCurrentInputLocked(getAppShowFlags(), null);
}
return needResult
? new InputBindResult(session.session, mCurId, mCurSeq)
: null;
}
InputBindResult startInputLocked(IInputMethodClient client,
IInputContext inputContext, EditorInfo attribute,
boolean initial, boolean needResult) {
// If no method is currently selected, do nothing.
if (mCurMethodId == null) {
return mNoBinding;
}
ClientState cs = mClients.get(client.asBinder());
if (cs == null) {
throw new IllegalArgumentException("unknown client "
+ client.asBinder());
}
try {
if (!mIWindowManager.inputMethodClientHasFocus(cs.client)) {
// Check with the window manager to make sure this client actually
// has a window with focus. If not, reject. This is thread safe
// because if the focus changes some time before or after, the
// next client receiving focus that has any interest in input will
// be calling through here after that change happens.
Slog.w(TAG, "Starting input on non-focused client " + cs.client
+ " (uid=" + cs.uid + " pid=" + cs.pid + ")");
return null;
}
} catch (RemoteException e) {
}
if (mCurClient != cs) {
// If the client is changing, we need to switch over to the new
// one.
unbindCurrentClientLocked();
if (DEBUG) Slog.v(TAG, "switching to client: client = "
+ cs.client.asBinder());
// If the screen is on, inform the new client it is active
if (mScreenOn) {
try {
cs.client.setActive(mScreenOn);
} catch (RemoteException e) {
Slog.w(TAG, "Got RemoteException sending setActive notification to pid "
+ cs.pid + " uid " + cs.uid);
}
}
}
// Bump up the sequence for this client and attach it.
mCurSeq++;
if (mCurSeq <= 0) mCurSeq = 1;
mCurClient = cs;
mCurInputContext = inputContext;
mCurAttribute = attribute;
// Check if the input method is changing.
if (mCurId != null && mCurId.equals(mCurMethodId)) {
if (cs.curSession != null) {
// Fast case: if we are already connected to the input method,
// then just return it.
return attachNewInputLocked(initial, needResult);
}
if (mHaveConnection) {
if (mCurMethod != null) {
if (!cs.sessionRequested) {
cs.sessionRequested = true;
if (DEBUG) Slog.v(TAG, "Creating new session for client " + cs);
executeOrSendMessage(mCurMethod, mCaller.obtainMessageOO(
MSG_CREATE_SESSION, mCurMethod,
new MethodCallback(mCurMethod)));
}
// Return to client, and we will get back with it when
// we have had a session made for it.
return new InputBindResult(null, mCurId, mCurSeq);
} else if (SystemClock.uptimeMillis()
< (mLastBindTime+TIME_TO_RECONNECT)) {
// In this case we have connected to the service, but
// don't yet have its interface. If it hasn't been too
// long since we did the connection, we'll return to
// the client and wait to get the service interface so
// we can report back. If it has been too long, we want
// to fall through so we can try a disconnect/reconnect
// to see if we can get back in touch with the service.
return new InputBindResult(null, mCurId, mCurSeq);
} else {
EventLog.writeEvent(EventLogTags.IMF_FORCE_RECONNECT_IME,
mCurMethodId, SystemClock.uptimeMillis()-mLastBindTime, 0);
}
}
}
return startInputInnerLocked();
}
InputBindResult startInputInnerLocked() {
if (mCurMethodId == null) {
return mNoBinding;
}
if (!mSystemReady) {
// If the system is not yet ready, we shouldn't be running third
// party code.
return new InputBindResult(null, mCurMethodId, mCurSeq);
}
InputMethodInfo info = mMethodMap.get(mCurMethodId);
if (info == null) {
throw new IllegalArgumentException("Unknown id: " + mCurMethodId);
}
unbindCurrentMethodLocked(false);
mCurIntent = new Intent(InputMethod.SERVICE_INTERFACE);
mCurIntent.setComponent(info.getComponent());
mCurIntent.putExtra(Intent.EXTRA_CLIENT_LABEL,
com.android.internal.R.string.input_method_binding_label);
mCurIntent.putExtra(Intent.EXTRA_CLIENT_INTENT, PendingIntent.getActivity(
mContext, 0, new Intent(Settings.ACTION_INPUT_METHOD_SETTINGS), 0));
if (mContext.bindService(mCurIntent, this, Context.BIND_AUTO_CREATE)) {
mLastBindTime = SystemClock.uptimeMillis();
mHaveConnection = true;
mCurId = info.getId();
mCurToken = new Binder();
try {
if (DEBUG) Slog.v(TAG, "Adding window token: " + mCurToken);
mIWindowManager.addWindowToken(mCurToken,
WindowManager.LayoutParams.TYPE_INPUT_METHOD);
} catch (RemoteException e) {
}
return new InputBindResult(null, mCurId, mCurSeq);
} else {
mCurIntent = null;
Slog.w(TAG, "Failure connecting to input method service: "
+ mCurIntent);
}
return null;
}
public InputBindResult startInput(IInputMethodClient client,
IInputContext inputContext, EditorInfo attribute,
boolean initial, boolean needResult) {
synchronized (mMethodMap) {
final long ident = Binder.clearCallingIdentity();
try {
return startInputLocked(client, inputContext, attribute,
initial, needResult);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
public void finishInput(IInputMethodClient client) {
}
public void onServiceConnected(ComponentName name, IBinder service) {
synchronized (mMethodMap) {
if (mCurIntent != null && name.equals(mCurIntent.getComponent())) {
mCurMethod = IInputMethod.Stub.asInterface(service);
if (mCurToken == null) {
Slog.w(TAG, "Service connected without a token!");
unbindCurrentMethodLocked(false);
return;
}
if (DEBUG) Slog.v(TAG, "Initiating attach with token: " + mCurToken);
executeOrSendMessage(mCurMethod, mCaller.obtainMessageOO(
MSG_ATTACH_TOKEN, mCurMethod, mCurToken));
if (mCurClient != null) {
if (DEBUG) Slog.v(TAG, "Creating first session while with client "
+ mCurClient);
executeOrSendMessage(mCurMethod, mCaller.obtainMessageOO(
MSG_CREATE_SESSION, mCurMethod,
new MethodCallback(mCurMethod)));
}
}
}
}
void onSessionCreated(IInputMethod method, IInputMethodSession session) {
synchronized (mMethodMap) {
if (mCurMethod != null && method != null
&& mCurMethod.asBinder() == method.asBinder()) {
if (mCurClient != null) {
mCurClient.curSession = new SessionState(mCurClient,
method, session);
mCurClient.sessionRequested = false;
InputBindResult res = attachNewInputLocked(true, true);
if (res.method != null) {
executeOrSendMessage(mCurClient.client, mCaller.obtainMessageOO(
MSG_BIND_METHOD, mCurClient.client, res));
}
}
}
}
}
void unbindCurrentMethodLocked(boolean reportToClient) {
if (mHaveConnection) {
mContext.unbindService(this);
mHaveConnection = false;
}
if (mCurToken != null) {
try {
if (DEBUG) Slog.v(TAG, "Removing window token: " + mCurToken);
mIWindowManager.removeWindowToken(mCurToken);
} catch (RemoteException e) {
}
mCurToken = null;
}
mCurId = null;
clearCurMethodLocked();
if (reportToClient && mCurClient != null) {
executeOrSendMessage(mCurClient.client, mCaller.obtainMessageIO(
MSG_UNBIND_METHOD, mCurSeq, mCurClient.client));
}
}
private void finishSession(SessionState sessionState) {
if (sessionState != null && sessionState.session != null) {
try {
sessionState.session.finishSession();
} catch (RemoteException e) {
Slog.w(TAG, "Session failed to close due to remote exception", e);
}
}
}
void clearCurMethodLocked() {
if (mCurMethod != null) {
for (ClientState cs : mClients.values()) {
cs.sessionRequested = false;
finishSession(cs.curSession);
cs.curSession = null;
}
finishSession(mEnabledSession);
mEnabledSession = null;
mCurMethod = null;
}
mStatusBar.setIconVisibility("ime", false);
}
public void onServiceDisconnected(ComponentName name) {
synchronized (mMethodMap) {
if (DEBUG) Slog.v(TAG, "Service disconnected: " + name
+ " mCurIntent=" + mCurIntent);
if (mCurMethod != null && mCurIntent != null
&& name.equals(mCurIntent.getComponent())) {
clearCurMethodLocked();
// We consider this to be a new bind attempt, since the system
// should now try to restart the service for us.
mLastBindTime = SystemClock.uptimeMillis();
mShowRequested = mInputShown;
mInputShown = false;
if (mCurClient != null) {
executeOrSendMessage(mCurClient.client, mCaller.obtainMessageIO(
MSG_UNBIND_METHOD, mCurSeq, mCurClient.client));
}
}
}
}
public void updateStatusIcon(IBinder token, String packageName, int iconId) {
int uid = Binder.getCallingUid();
long ident = Binder.clearCallingIdentity();
try {
if (token == null || mCurToken != token) {
Slog.w(TAG, "Ignoring setInputMethod of uid " + uid + " token: " + token);
return;
}
synchronized (mMethodMap) {
if (iconId == 0) {
if (DEBUG) Slog.d(TAG, "hide the small icon for the input method");
mStatusBar.setIconVisibility("ime", false);
} else if (packageName != null) {
if (DEBUG) Slog.d(TAG, "show a small icon for the input method");
mStatusBar.setIcon("ime", packageName, iconId, 0);
mStatusBar.setIconVisibility("ime", true);
}
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
void updateFromSettingsLocked() {
// We are assuming that whoever is changing DEFAULT_INPUT_METHOD and
// ENABLED_INPUT_METHODS is taking care of keeping them correctly in
// sync, so we will never have a DEFAULT_INPUT_METHOD that is not
// enabled.
String id = Settings.Secure.getString(mContext.getContentResolver(),
Settings.Secure.DEFAULT_INPUT_METHOD);
if (id != null && id.length() > 0) {
try {
setInputMethodLocked(id);
} catch (IllegalArgumentException e) {
Slog.w(TAG, "Unknown input method from prefs: " + id, e);
mCurMethodId = null;
unbindCurrentMethodLocked(true);
}
} else {
// There is no longer an input method set, so stop any current one.
mCurMethodId = null;
unbindCurrentMethodLocked(true);
}
}
void setInputMethodLocked(String id) {
InputMethodInfo info = mMethodMap.get(id);
if (info == null) {
throw new IllegalArgumentException("Unknown id: " + id);
}
if (id.equals(mCurMethodId)) {
return;
}
final long ident = Binder.clearCallingIdentity();
try {
mCurMethodId = id;
Settings.Secure.putString(mContext.getContentResolver(),
Settings.Secure.DEFAULT_INPUT_METHOD, id);
if (ActivityManagerNative.isSystemReady()) {
Intent intent = new Intent(Intent.ACTION_INPUT_METHOD_CHANGED);
intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING);
intent.putExtra("input_method_id", id);
mContext.sendBroadcast(intent);
}
unbindCurrentClientLocked();
} finally {
Binder.restoreCallingIdentity(ident);
}
}
public boolean showSoftInput(IInputMethodClient client, int flags,
ResultReceiver resultReceiver) {
int uid = Binder.getCallingUid();
long ident = Binder.clearCallingIdentity();
try {
synchronized (mMethodMap) {
if (mCurClient == null || client == null
|| mCurClient.client.asBinder() != client.asBinder()) {
try {
// We need to check if this is the current client with
// focus in the window manager, to allow this call to
// be made before input is started in it.
if (!mIWindowManager.inputMethodClientHasFocus(client)) {
Slog.w(TAG, "Ignoring showSoftInput of uid " + uid + ": " + client);
return false;
}
} catch (RemoteException e) {
return false;
}
}
if (DEBUG) Slog.v(TAG, "Client requesting input be shown");
return showCurrentInputLocked(flags, resultReceiver);
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
boolean showCurrentInputLocked(int flags, ResultReceiver resultReceiver) {
mShowRequested = true;
if ((flags&InputMethodManager.SHOW_IMPLICIT) == 0) {
mShowExplicitlyRequested = true;
}
if ((flags&InputMethodManager.SHOW_FORCED) != 0) {
mShowExplicitlyRequested = true;
mShowForced = true;
}
if (!mSystemReady) {
return false;
}
boolean res = false;
if (mCurMethod != null) {
executeOrSendMessage(mCurMethod, mCaller.obtainMessageIOO(
MSG_SHOW_SOFT_INPUT, getImeShowFlags(), mCurMethod,
resultReceiver));
mInputShown = true;
res = true;
} else if (mHaveConnection && SystemClock.uptimeMillis()
< (mLastBindTime+TIME_TO_RECONNECT)) {
// The client has asked to have the input method shown, but
// we have been sitting here too long with a connection to the
// service and no interface received, so let's disconnect/connect
// to try to prod things along.
EventLog.writeEvent(EventLogTags.IMF_FORCE_RECONNECT_IME, mCurMethodId,
SystemClock.uptimeMillis()-mLastBindTime,1);
mContext.unbindService(this);
mContext.bindService(mCurIntent, this, Context.BIND_AUTO_CREATE);
}
return res;
}
public boolean hideSoftInput(IInputMethodClient client, int flags,
ResultReceiver resultReceiver) {
int uid = Binder.getCallingUid();
long ident = Binder.clearCallingIdentity();
try {
synchronized (mMethodMap) {
if (mCurClient == null || client == null
|| mCurClient.client.asBinder() != client.asBinder()) {
try {
// We need to check if this is the current client with
// focus in the window manager, to allow this call to
// be made before input is started in it.
if (!mIWindowManager.inputMethodClientHasFocus(client)) {
if (DEBUG) Slog.w(TAG, "Ignoring hideSoftInput of uid "
+ uid + ": " + client);
return false;
}
} catch (RemoteException e) {
return false;
}
}
if (DEBUG) Slog.v(TAG, "Client requesting input be hidden");
return hideCurrentInputLocked(flags, resultReceiver);
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
boolean hideCurrentInputLocked(int flags, ResultReceiver resultReceiver) {
if ((flags&InputMethodManager.HIDE_IMPLICIT_ONLY) != 0
&& (mShowExplicitlyRequested || mShowForced)) {
if (DEBUG) Slog.v(TAG,
"Not hiding: explicit show not cancelled by non-explicit hide");
return false;
}
if (mShowForced && (flags&InputMethodManager.HIDE_NOT_ALWAYS) != 0) {
if (DEBUG) Slog.v(TAG,
"Not hiding: forced show not cancelled by not-always hide");
return false;
}
boolean res;
if (mInputShown && mCurMethod != null) {
executeOrSendMessage(mCurMethod, mCaller.obtainMessageOO(
MSG_HIDE_SOFT_INPUT, mCurMethod, resultReceiver));
res = true;
} else {
res = false;
}
mInputShown = false;
mShowRequested = false;
mShowExplicitlyRequested = false;
mShowForced = false;
return res;
}
public void windowGainedFocus(IInputMethodClient client, IBinder windowToken,
boolean viewHasFocus, boolean isTextEditor, int softInputMode,
boolean first, int windowFlags) {
long ident = Binder.clearCallingIdentity();
try {
synchronized (mMethodMap) {
if (DEBUG) Slog.v(TAG, "windowGainedFocus: " + client.asBinder()
+ " viewHasFocus=" + viewHasFocus
+ " isTextEditor=" + isTextEditor
+ " softInputMode=#" + Integer.toHexString(softInputMode)
+ " first=" + first + " flags=#"
+ Integer.toHexString(windowFlags));
if (mCurClient == null || client == null
|| mCurClient.client.asBinder() != client.asBinder()) {
try {
// We need to check if this is the current client with
// focus in the window manager, to allow this call to
// be made before input is started in it.
if (!mIWindowManager.inputMethodClientHasFocus(client)) {
Slog.w(TAG, "Client not active, ignoring focus gain of: " + client);
return;
}
} catch (RemoteException e) {
}
}
if (mCurFocusedWindow == windowToken) {
Slog.w(TAG, "Window already focused, ignoring focus gain of: " + client);
return;
}
mCurFocusedWindow = windowToken;
switch (softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_STATE) {
case WindowManager.LayoutParams.SOFT_INPUT_STATE_UNSPECIFIED:
if (!isTextEditor || (softInputMode &
WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST)
!= WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE) {
if (WindowManager.LayoutParams.mayUseInputMethod(windowFlags)) {
// There is no focus view, and this window will
// be behind any soft input window, so hide the
// soft input window if it is shown.
if (DEBUG) Slog.v(TAG, "Unspecified window will hide input");
hideCurrentInputLocked(InputMethodManager.HIDE_NOT_ALWAYS, null);
}
} else if (isTextEditor && (softInputMode &
WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST)
== WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE
&& (softInputMode &
WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION) != 0) {
// There is a focus view, and we are navigating forward
// into the window, so show the input window for the user.
if (DEBUG) Slog.v(TAG, "Unspecified window will show input");
showCurrentInputLocked(InputMethodManager.SHOW_IMPLICIT, null);
}
break;
case WindowManager.LayoutParams.SOFT_INPUT_STATE_UNCHANGED:
// Do nothing.
break;
case WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN:
if ((softInputMode &
WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION) != 0) {
if (DEBUG) Slog.v(TAG, "Window asks to hide input going forward");
hideCurrentInputLocked(0, null);
}
break;
case WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN:
if (DEBUG) Slog.v(TAG, "Window asks to hide input");
hideCurrentInputLocked(0, null);
break;
case WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE:
if ((softInputMode &
WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION) != 0) {
if (DEBUG) Slog.v(TAG, "Window asks to show input going forward");
showCurrentInputLocked(InputMethodManager.SHOW_IMPLICIT, null);
}
break;
case WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE:
if (DEBUG) Slog.v(TAG, "Window asks to always show input");
showCurrentInputLocked(InputMethodManager.SHOW_IMPLICIT, null);
break;
}
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
public void showInputMethodPickerFromClient(IInputMethodClient client) {
synchronized (mMethodMap) {
if (mCurClient == null || client == null
|| mCurClient.client.asBinder() != client.asBinder()) {
Slog.w(TAG, "Ignoring showInputMethodDialogFromClient of uid "
+ Binder.getCallingUid() + ": " + client);
}
mHandler.sendEmptyMessage(MSG_SHOW_IM_PICKER);
}
}
public void setInputMethod(IBinder token, String id) {
synchronized (mMethodMap) {
if (token == null) {
if (mContext.checkCallingOrSelfPermission(
android.Manifest.permission.WRITE_SECURE_SETTINGS)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException(
"Using null token requires permission "
+ android.Manifest.permission.WRITE_SECURE_SETTINGS);
}
} else if (mCurToken != token) {
Slog.w(TAG, "Ignoring setInputMethod of uid " + Binder.getCallingUid()
+ " token: " + token);
return;
}
long ident = Binder.clearCallingIdentity();
try {
setInputMethodLocked(id);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
public void hideMySoftInput(IBinder token, int flags) {
synchronized (mMethodMap) {
if (token == null || mCurToken != token) {
if (DEBUG) Slog.w(TAG, "Ignoring hideInputMethod of uid "
+ Binder.getCallingUid() + " token: " + token);
return;
}
long ident = Binder.clearCallingIdentity();
try {
hideCurrentInputLocked(flags, null);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
public void showMySoftInput(IBinder token, int flags) {
synchronized (mMethodMap) {
if (token == null || mCurToken != token) {
Slog.w(TAG, "Ignoring showMySoftInput of uid "
+ Binder.getCallingUid() + " token: " + token);
return;
}
long ident = Binder.clearCallingIdentity();
try {
showCurrentInputLocked(flags, null);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
void setEnabledSessionInMainThread(SessionState session) {
if (mEnabledSession != session) {
if (mEnabledSession != null) {
try {
if (DEBUG) Slog.v(TAG, "Disabling: " + mEnabledSession);
mEnabledSession.method.setSessionEnabled(
mEnabledSession.session, false);
} catch (RemoteException e) {
}
}
mEnabledSession = session;
try {
if (DEBUG) Slog.v(TAG, "Enabling: " + mEnabledSession);
session.method.setSessionEnabled(
session.session, true);
} catch (RemoteException e) {
}
}
}
public boolean handleMessage(Message msg) {
HandlerCaller.SomeArgs args;
switch (msg.what) {
case MSG_SHOW_IM_PICKER:
showInputMethodMenu();
return true;
// ---------------------------------------------------------
case MSG_UNBIND_INPUT:
try {
((IInputMethod)msg.obj).unbindInput();
} catch (RemoteException e) {
// There is nothing interesting about the method dying.
}
return true;
case MSG_BIND_INPUT:
args = (HandlerCaller.SomeArgs)msg.obj;
try {
((IInputMethod)args.arg1).bindInput((InputBinding)args.arg2);
} catch (RemoteException e) {
}
mCaller.recycleArgs(args);
return true;
case MSG_SHOW_SOFT_INPUT:
args = (HandlerCaller.SomeArgs)msg.obj;
try {
((IInputMethod)args.arg1).showSoftInput(msg.arg1,
(ResultReceiver)args.arg2);
} catch (RemoteException e) {
}
mCaller.recycleArgs(args);
return true;
case MSG_HIDE_SOFT_INPUT:
args = (HandlerCaller.SomeArgs)msg.obj;
try {
((IInputMethod)args.arg1).hideSoftInput(0,
(ResultReceiver)args.arg2);
} catch (RemoteException e) {
}
mCaller.recycleArgs(args);
return true;
case MSG_ATTACH_TOKEN:
args = (HandlerCaller.SomeArgs)msg.obj;
try {
if (DEBUG) Slog.v(TAG, "Sending attach of token: " + args.arg2);
((IInputMethod)args.arg1).attachToken((IBinder)args.arg2);
} catch (RemoteException e) {
}
mCaller.recycleArgs(args);
return true;
case MSG_CREATE_SESSION:
args = (HandlerCaller.SomeArgs)msg.obj;
try {
((IInputMethod)args.arg1).createSession(
(IInputMethodCallback)args.arg2);
} catch (RemoteException e) {
}
mCaller.recycleArgs(args);
return true;
// ---------------------------------------------------------
case MSG_START_INPUT:
args = (HandlerCaller.SomeArgs)msg.obj;
try {
SessionState session = (SessionState)args.arg1;
setEnabledSessionInMainThread(session);
session.method.startInput((IInputContext)args.arg2,
(EditorInfo)args.arg3);
} catch (RemoteException e) {
}
mCaller.recycleArgs(args);
return true;
case MSG_RESTART_INPUT:
args = (HandlerCaller.SomeArgs)msg.obj;
try {
SessionState session = (SessionState)args.arg1;
setEnabledSessionInMainThread(session);
session.method.restartInput((IInputContext)args.arg2,
(EditorInfo)args.arg3);
} catch (RemoteException e) {
}
mCaller.recycleArgs(args);
return true;
// ---------------------------------------------------------
case MSG_UNBIND_METHOD:
try {
((IInputMethodClient)msg.obj).onUnbindMethod(msg.arg1);
} catch (RemoteException e) {
// There is nothing interesting about the last client dying.
}
return true;
case MSG_BIND_METHOD:
args = (HandlerCaller.SomeArgs)msg.obj;
try {
((IInputMethodClient)args.arg1).onBindMethod(
(InputBindResult)args.arg2);
} catch (RemoteException e) {
Slog.w(TAG, "Client died receiving input method " + args.arg2);
}
mCaller.recycleArgs(args);
return true;
}
return false;
}
private boolean isSystemIme(InputMethodInfo inputMethod) {
return (inputMethod.getServiceInfo().applicationInfo.flags
& ApplicationInfo.FLAG_SYSTEM) != 0;
}
private boolean chooseNewDefaultIMELocked() {
List<InputMethodInfo> enabled = getEnabledInputMethodListLocked();
if (enabled != null && enabled.size() > 0) {
// We'd prefer to fall back on a system IME, since that is safer.
int i=enabled.size();
while (i > 0) {
i--;
if ((enabled.get(i).getServiceInfo().applicationInfo.flags
& ApplicationInfo.FLAG_SYSTEM) != 0) {
break;
}
}
Settings.Secure.putString(mContext.getContentResolver(),
Settings.Secure.DEFAULT_INPUT_METHOD,
enabled.get(i).getId());
return true;
}
return false;
}
void buildInputMethodListLocked(ArrayList<InputMethodInfo> list,
HashMap<String, InputMethodInfo> map) {
list.clear();
map.clear();
PackageManager pm = mContext.getPackageManager();
final Configuration config = mContext.getResources().getConfiguration();
final boolean haveHardKeyboard = config.keyboard == Configuration.KEYBOARD_QWERTY;
String disabledSysImes = Settings.Secure.getString(mContext.getContentResolver(),
Secure.DISABLED_SYSTEM_INPUT_METHODS);
if (disabledSysImes == null) disabledSysImes = "";
List<ResolveInfo> services = pm.queryIntentServices(
new Intent(InputMethod.SERVICE_INTERFACE),
PackageManager.GET_META_DATA);
for (int i = 0; i < services.size(); ++i) {
ResolveInfo ri = services.get(i);
ServiceInfo si = ri.serviceInfo;
ComponentName compName = new ComponentName(si.packageName, si.name);
if (!android.Manifest.permission.BIND_INPUT_METHOD.equals(
si.permission)) {
Slog.w(TAG, "Skipping input method " + compName
+ ": it does not require the permission "
+ android.Manifest.permission.BIND_INPUT_METHOD);
continue;
}
if (DEBUG) Slog.d(TAG, "Checking " + compName);
try {
InputMethodInfo p = new InputMethodInfo(mContext, ri);
list.add(p);
final String id = p.getId();
map.put(id, p);
// System IMEs are enabled by default, unless there's a hard keyboard
// and the system IME was explicitly disabled
if (isSystemIme(p) && (!haveHardKeyboard || disabledSysImes.indexOf(id) < 0)) {
setInputMethodEnabledLocked(id, true);
}
if (DEBUG) {
Slog.d(TAG, "Found a third-party input method " + p);
}
} catch (XmlPullParserException e) {
Slog.w(TAG, "Unable to load input method " + compName, e);
} catch (IOException e) {
Slog.w(TAG, "Unable to load input method " + compName, e);
}
}
String defaultIme = Settings.Secure.getString(mContext
.getContentResolver(), Settings.Secure.DEFAULT_INPUT_METHOD);
if (!TextUtils.isEmpty(defaultIme) && !map.containsKey(defaultIme)) {
if (chooseNewDefaultIMELocked()) {
updateFromSettingsLocked();
}
}
}
// ----------------------------------------------------------------------
void showInputMethodMenu() {
if (DEBUG) Slog.v(TAG, "Show switching menu");
final Context context = mContext;
final PackageManager pm = context.getPackageManager();
String lastInputMethodId = Settings.Secure.getString(context
.getContentResolver(), Settings.Secure.DEFAULT_INPUT_METHOD);
if (DEBUG) Slog.v(TAG, "Current IME: " + lastInputMethodId);
final List<InputMethodInfo> immis = getEnabledInputMethodList();
if (immis == null) {
return;
}
synchronized (mMethodMap) {
hideInputMethodMenuLocked();
int N = immis.size();
final Map<CharSequence, InputMethodInfo> imMap =
new TreeMap<CharSequence, InputMethodInfo>(Collator.getInstance());
for (int i = 0; i < N; ++i) {
InputMethodInfo property = immis.get(i);
if (property == null) {
continue;
}
imMap.put(property.loadLabel(pm), property);
}
N = imMap.size();
mItems = imMap.keySet().toArray(new CharSequence[N]);
mIms = imMap.values().toArray(new InputMethodInfo[N]);
int checkedItem = 0;
for (int i = 0; i < N; ++i) {
if (mIms[i].getId().equals(lastInputMethodId)) {
checkedItem = i;
break;
}
}
AlertDialog.OnClickListener adocl = new AlertDialog.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
hideInputMethodMenu();
}
};
TypedArray a = context.obtainStyledAttributes(null,
com.android.internal.R.styleable.DialogPreference,
com.android.internal.R.attr.alertDialogStyle, 0);
mDialogBuilder = new AlertDialog.Builder(context)
.setTitle(com.android.internal.R.string.select_input_method)
.setOnCancelListener(new OnCancelListener() {
public void onCancel(DialogInterface dialog) {
hideInputMethodMenu();
}
})
.setIcon(a.getDrawable(
com.android.internal.R.styleable.DialogPreference_dialogTitle));
a.recycle();
mDialogBuilder.setSingleChoiceItems(mItems, checkedItem,
new AlertDialog.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
synchronized (mMethodMap) {
if (mIms == null || mIms.length <= which) {
return;
}
InputMethodInfo im = mIms[which];
hideInputMethodMenu();
if (im != null) {
setInputMethodLocked(im.getId());
}
}
}
});
mSwitchingDialog = mDialogBuilder.create();
mSwitchingDialog.getWindow().setType(
WindowManager.LayoutParams.TYPE_INPUT_METHOD_DIALOG);
mSwitchingDialog.show();
}
}
void hideInputMethodMenu() {
synchronized (mMethodMap) {
hideInputMethodMenuLocked();
}
}
void hideInputMethodMenuLocked() {
if (DEBUG) Slog.v(TAG, "Hide switching menu");
if (mSwitchingDialog != null) {
mSwitchingDialog.dismiss();
mSwitchingDialog = null;
}
mDialogBuilder = null;
mItems = null;
mIms = null;
}
// ----------------------------------------------------------------------
public boolean setInputMethodEnabled(String id, boolean enabled) {
synchronized (mMethodMap) {
if (mContext.checkCallingOrSelfPermission(
android.Manifest.permission.WRITE_SECURE_SETTINGS)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException(
"Requires permission "
+ android.Manifest.permission.WRITE_SECURE_SETTINGS);
}
long ident = Binder.clearCallingIdentity();
try {
return setInputMethodEnabledLocked(id, enabled);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
boolean setInputMethodEnabledLocked(String id, boolean enabled) {
// Make sure this is a valid input method.
InputMethodInfo imm = mMethodMap.get(id);
if (imm == null) {
if (imm == null) {
throw new IllegalArgumentException("Unknown id: " + mCurMethodId);
}
}
StringBuilder builder = new StringBuilder(256);
boolean removed = false;
String firstId = null;
// Look through the currently enabled input methods.
String enabledStr = Settings.Secure.getString(mContext.getContentResolver(),
Settings.Secure.ENABLED_INPUT_METHODS);
if (enabledStr != null) {
final TextUtils.SimpleStringSplitter splitter = mStringColonSplitter;
splitter.setString(enabledStr);
while (splitter.hasNext()) {
String curId = splitter.next();
if (curId.equals(id)) {
if (enabled) {
// We are enabling this input method, but it is
// already enabled. Nothing to do. The previous
// state was enabled.
return true;
}
// We are disabling this input method, and it is
// currently enabled. Skip it to remove from the
// new list.
removed = true;
} else if (!enabled) {
// We are building a new list of input methods that
// doesn't contain the given one.
if (firstId == null) firstId = curId;
if (builder.length() > 0) builder.append(':');
builder.append(curId);
}
}
}
if (!enabled) {
if (!removed) {
// We are disabling the input method but it is already
// disabled. Nothing to do. The previous state was
// disabled.
return false;
}
// Update the setting with the new list of input methods.
Settings.Secure.putString(mContext.getContentResolver(),
Settings.Secure.ENABLED_INPUT_METHODS, builder.toString());
// We the disabled input method is currently selected, switch
// to another one.
String selId = Settings.Secure.getString(mContext.getContentResolver(),
Settings.Secure.DEFAULT_INPUT_METHOD);
if (id.equals(selId)) {
Settings.Secure.putString(mContext.getContentResolver(),
Settings.Secure.DEFAULT_INPUT_METHOD,
firstId != null ? firstId : "");
}
// Previous state was enabled.
return true;
}
// Add in the newly enabled input method.
if (enabledStr == null || enabledStr.length() == 0) {
enabledStr = id;
} else {
enabledStr = enabledStr + ':' + id;
}
Settings.Secure.putString(mContext.getContentResolver(),
Settings.Secure.ENABLED_INPUT_METHODS, enabledStr);
// Previous state was disabled.
return false;
}
// ----------------------------------------------------------------------
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
!= PackageManager.PERMISSION_GRANTED) {
pw.println("Permission Denial: can't dump InputMethodManager from from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid());
return;
}
IInputMethod method;
ClientState client;
final Printer p = new PrintWriterPrinter(pw);
synchronized (mMethodMap) {
p.println("Current Input Method Manager state:");
int N = mMethodList.size();
p.println(" Input Methods:");
for (int i=0; i<N; i++) {
InputMethodInfo info = mMethodList.get(i);
p.println(" InputMethod #" + i + ":");
info.dump(p, " ");
}
p.println(" Clients:");
for (ClientState ci : mClients.values()) {
p.println(" Client " + ci + ":");
p.println(" client=" + ci.client);
p.println(" inputContext=" + ci.inputContext);
p.println(" sessionRequested=" + ci.sessionRequested);
p.println(" curSession=" + ci.curSession);
}
p.println(" mCurMethodId=" + mCurMethodId);
client = mCurClient;
p.println(" mCurClient=" + client + " mCurSeq=" + mCurSeq);
p.println(" mCurFocusedWindow=" + mCurFocusedWindow);
p.println(" mCurId=" + mCurId + " mHaveConnect=" + mHaveConnection
+ " mBoundToMethod=" + mBoundToMethod);
p.println(" mCurToken=" + mCurToken);
p.println(" mCurIntent=" + mCurIntent);
method = mCurMethod;
p.println(" mCurMethod=" + mCurMethod);
p.println(" mEnabledSession=" + mEnabledSession);
p.println(" mShowRequested=" + mShowRequested
+ " mShowExplicitlyRequested=" + mShowExplicitlyRequested
+ " mShowForced=" + mShowForced
+ " mInputShown=" + mInputShown);
p.println(" mSystemReady=" + mSystemReady + " mScreenOn=" + mScreenOn);
}
p.println(" ");
if (client != null) {
pw.flush();
try {
client.client.asBinder().dump(fd, args);
} catch (RemoteException e) {
p.println("Input method client dead: " + e);
}
} else {
p.println("No input method client.");
}
p.println(" ");
if (method != null) {
pw.flush();
try {
method.asBinder().dump(fd, args);
} catch (RemoteException e) {
p.println("Input method service dead: " + e);
}
} else {
p.println("No input method service.");
}
}
}
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