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Watch for voice recognition service changes for all users

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Monitor package changes and update the default recognizer

Bug: 7216043

Change-Id: I6b358b62401eaf58b38059caa57f72585f332eb5
This commit is contained in:
Amith Yamasani
2012-09-24 19:38:28 -07:00
committed by Jean-Baptiste Queru
parent 3b772c6b67
commit f80a9b2f8a
1 changed files with 72 additions and 36 deletions
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108
services/java/com/android/server/RecognitionManagerService.java
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@ -18,13 +18,18 @@ package com.android.server;
import com.android.internal.content.PackageMonitor;
import android.app.AppGlobals;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.IPackageManager;
import android.content.pm.ResolveInfo;
import android.content.pm.ServiceInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Binder;
import android.os.RemoteException;
import android.os.UserHandle;
import android.provider.Settings;
import android.speech.RecognitionService;
import android.text.TextUtils;
@ -34,68 +39,82 @@ import java.util.List;
public class RecognitionManagerService extends Binder {
final static String TAG = "RecognitionManagerService";
final Context mContext;
final MyPackageMonitor mMonitor;
private final Context mContext;
private final MyPackageMonitor mMonitor;
private final IPackageManager mIPm;
private static final boolean DEBUG = false;
class MyPackageMonitor extends PackageMonitor {
public void onSomePackagesChanged() {
ComponentName comp = getCurRecognizer();
int userHandle = getChangingUserId();
if (DEBUG) Slog.i(TAG, "onSomePackagesChanged user=" + userHandle);
ComponentName comp = getCurRecognizer(userHandle);
if (comp == null) {
if (anyPackagesAppearing()) {
comp = findAvailRecognizer(null);
comp = findAvailRecognizer(null, userHandle);
if (comp != null) {
setCurRecognizer(comp);
setCurRecognizer(comp, userHandle);
}
}
return;
}
int change = isPackageDisappearing(comp.getPackageName());
if (change == PACKAGE_PERMANENT_CHANGE
|| change == PACKAGE_TEMPORARY_CHANGE) {
setCurRecognizer(findAvailRecognizer(null));
setCurRecognizer(findAvailRecognizer(null, userHandle), userHandle);
} else if (isPackageModified(comp.getPackageName())) {
setCurRecognizer(findAvailRecognizer(comp.getPackageName()));
setCurRecognizer(findAvailRecognizer(comp.getPackageName(), userHandle),
userHandle);
}
}
}
RecognitionManagerService(Context context) {
mContext = context;
mMonitor = new MyPackageMonitor();
mMonitor.register(context, null, true);
mMonitor.register(context, null, UserHandle.ALL, true);
mIPm = AppGlobals.getPackageManager();
mContext.registerReceiverAsUser(mBroadcastReceiver, UserHandle.ALL,
new IntentFilter(Intent.ACTION_BOOT_COMPLETED), null, null);
}
public void systemReady() {
ComponentName comp = getCurRecognizer();
initForUser(UserHandle.USER_OWNER);
}
private void initForUser(int userHandle) {
if (DEBUG) Slog.i(TAG, "initForUser user=" + userHandle);
ComponentName comp = getCurRecognizer(userHandle);
if (comp != null) {
// See if the current recognizer is no longer available.
try {
mContext.getPackageManager().getServiceInfo(comp, 0);
} catch (NameNotFoundException e) {
comp = findAvailRecognizer(null);
mIPm.getServiceInfo(comp, 0, userHandle);
} catch (RemoteException e) {
comp = findAvailRecognizer(null, userHandle);
if (comp != null) {
setCurRecognizer(comp);
setCurRecognizer(comp, userHandle);
}
}
} else {
comp = findAvailRecognizer(null);
comp = findAvailRecognizer(null, userHandle);
if (comp != null) {
setCurRecognizer(comp);
setCurRecognizer(comp, userHandle);
}
}
}
ComponentName findAvailRecognizer(String prefPackage) {
ComponentName findAvailRecognizer(String prefPackage, int userHandle) {
List<ResolveInfo> available =
mContext.getPackageManager().queryIntentServices(
new Intent(RecognitionService.SERVICE_INTERFACE), 0);
mContext.getPackageManager().queryIntentServicesAsUser(
new Intent(RecognitionService.SERVICE_INTERFACE), 0, userHandle);
int numAvailable = available.size();
if (numAvailable == 0) {
Slog.w(TAG, "no available voice recognition services found");
Slog.w(TAG, "no available voice recognition services found for user " + userHandle);
return null;
} else {
if (prefPackage != null) {
@ -109,25 +128,42 @@ public class RecognitionManagerService extends Binder {
if (numAvailable > 1) {
Slog.w(TAG, "more than one voice recognition service found, picking first");
}
ServiceInfo serviceInfo = available.get(0).serviceInfo;
return new ComponentName(serviceInfo.packageName, serviceInfo.name);
}
}
ComponentName getCurRecognizer() {
String curRecognizer = Settings.Secure.getString(
ComponentName getCurRecognizer(int userHandle) {
String curRecognizer = Settings.Secure.getStringForUser(
mContext.getContentResolver(),
Settings.Secure.VOICE_RECOGNITION_SERVICE);
Settings.Secure.VOICE_RECOGNITION_SERVICE, userHandle);
if (TextUtils.isEmpty(curRecognizer)) {
return null;
}
if (DEBUG) Slog.i(TAG, "getCurRecognizer curRecognizer=" + curRecognizer
+ " user=" + userHandle);
return ComponentName.unflattenFromString(curRecognizer);
}
void setCurRecognizer(ComponentName comp) {
Settings.Secure.putString(mContext.getContentResolver(),
void setCurRecognizer(ComponentName comp, int userHandle) {
Settings.Secure.putStringForUser(mContext.getContentResolver(),
Settings.Secure.VOICE_RECOGNITION_SERVICE,
comp != null ? comp.flattenToShortString() : "");
comp != null ? comp.flattenToShortString() : "", userHandle);
if (DEBUG) Slog.i(TAG, "setCurRecognizer comp=" + comp
+ " user=" + userHandle);
}
BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (DEBUG) Slog.i(TAG, "received " + action);
if (Intent.ACTION_BOOT_COMPLETED.equals(action)) {
int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, -1);
if (userHandle > 0) {
initForUser(userHandle);
}
}
}
};
}