| /* | |
| * Copyright (C) 2011 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.textservice.ISpellCheckerService; | |
| import com.android.internal.textservice.ISpellCheckerSession; | |
| import com.android.internal.textservice.ISpellCheckerSessionListener; | |
| import com.android.internal.textservice.ITextServicesManager; | |
| import com.android.internal.textservice.ITextServicesSessionListener; | |
| import org.xmlpull.v1.XmlPullParserException; | |
| import android.app.ActivityManagerNative; | |
| import android.app.AppGlobals; | |
| import android.app.IUserSwitchObserver; | |
| import android.content.ComponentName; | |
| import android.content.ContentResolver; | |
| import android.content.Context; | |
| import android.content.Intent; | |
| import android.content.ServiceConnection; | |
| import android.content.pm.IPackageManager; | |
| import android.content.pm.PackageManager; | |
| import android.content.pm.ResolveInfo; | |
| import android.content.pm.ServiceInfo; | |
| import android.os.Binder; | |
| import android.os.Bundle; | |
| import android.os.IBinder; | |
| import android.os.IRemoteCallback; | |
| import android.os.Process; | |
| import android.os.RemoteException; | |
| import android.os.UserHandle; | |
| import android.provider.Settings; | |
| import android.service.textservice.SpellCheckerService; | |
| import android.text.TextUtils; | |
| import android.util.Slog; | |
| import android.view.inputmethod.InputMethodManager; | |
| import android.view.inputmethod.InputMethodSubtype; | |
| import android.view.textservice.SpellCheckerInfo; | |
| import android.view.textservice.SpellCheckerSubtype; | |
| import java.io.FileDescriptor; | |
| import java.io.IOException; | |
| import java.io.PrintWriter; | |
| import java.util.ArrayList; | |
| import java.util.HashMap; | |
| import java.util.List; | |
| import java.util.Map; | |
| import java.util.concurrent.CopyOnWriteArrayList; | |
| public class TextServicesManagerService extends ITextServicesManager.Stub { | |
| private static final String TAG = TextServicesManagerService.class.getSimpleName(); | |
| private static final boolean DBG = false; | |
| private final Context mContext; | |
| private boolean mSystemReady; | |
| private final TextServicesMonitor mMonitor; | |
| private final HashMap<String, SpellCheckerInfo> mSpellCheckerMap = | |
| new HashMap<String, SpellCheckerInfo>(); | |
| private final ArrayList<SpellCheckerInfo> mSpellCheckerList = new ArrayList<SpellCheckerInfo>(); | |
| private final HashMap<String, SpellCheckerBindGroup> mSpellCheckerBindGroups = | |
| new HashMap<String, SpellCheckerBindGroup>(); | |
| private final TextServicesSettings mSettings; | |
| public void systemRunning() { | |
| if (!mSystemReady) { | |
| mSystemReady = true; | |
| } | |
| } | |
| public TextServicesManagerService(Context context) { | |
| mSystemReady = false; | |
| mContext = context; | |
| int userId = UserHandle.USER_OWNER; | |
| try { | |
| ActivityManagerNative.getDefault().registerUserSwitchObserver( | |
| new IUserSwitchObserver.Stub() { | |
| @Override | |
| public void onUserSwitching(int newUserId, IRemoteCallback reply) { | |
| synchronized(mSpellCheckerMap) { | |
| switchUserLocked(newUserId); | |
| } | |
| if (reply != null) { | |
| try { | |
| reply.sendResult(null); | |
| } catch (RemoteException e) { | |
| } | |
| } | |
| } | |
| @Override | |
| public void onUserSwitchComplete(int newUserId) throws RemoteException { | |
| } | |
| }); | |
| userId = ActivityManagerNative.getDefault().getCurrentUser().id; | |
| } catch (RemoteException e) { | |
| Slog.w(TAG, "Couldn't get current user ID; guessing it's 0", e); | |
| } | |
| mMonitor = new TextServicesMonitor(); | |
| mMonitor.register(context, null, true); | |
| mSettings = new TextServicesSettings(context.getContentResolver(), userId); | |
| // "switchUserLocked" initializes the states for the foreground user | |
| switchUserLocked(userId); | |
| } | |
| private void switchUserLocked(int userId) { | |
| mSettings.setCurrentUserId(userId); | |
| unbindServiceLocked(); | |
| buildSpellCheckerMapLocked(mContext, mSpellCheckerList, mSpellCheckerMap, mSettings); | |
| SpellCheckerInfo sci = getCurrentSpellChecker(null); | |
| if (sci == null) { | |
| sci = findAvailSpellCheckerLocked(null, null); | |
| if (sci != null) { | |
| // Set the current spell checker if there is one or more spell checkers | |
| // available. In this case, "sci" is the first one in the available spell | |
| // checkers. | |
| setCurrentSpellCheckerLocked(sci.getId()); | |
| } | |
| } | |
| } | |
| private class TextServicesMonitor extends PackageMonitor { | |
| private boolean isChangingPackagesOfCurrentUser() { | |
| final int userId = getChangingUserId(); | |
| final boolean retval = userId == mSettings.getCurrentUserId(); | |
| if (DBG) { | |
| Slog.d(TAG, "--- ignore this call back from a background user: " + userId); | |
| } | |
| return retval; | |
| } | |
| @Override | |
| public void onSomePackagesChanged() { | |
| if (!isChangingPackagesOfCurrentUser()) { | |
| return; | |
| } | |
| synchronized (mSpellCheckerMap) { | |
| buildSpellCheckerMapLocked( | |
| mContext, mSpellCheckerList, mSpellCheckerMap, mSettings); | |
| // TODO: Update for each locale | |
| SpellCheckerInfo sci = getCurrentSpellChecker(null); | |
| if (sci == null) return; | |
| final String packageName = sci.getPackageName(); | |
| final int change = isPackageDisappearing(packageName); | |
| if (// Package disappearing | |
| change == PACKAGE_PERMANENT_CHANGE || change == PACKAGE_TEMPORARY_CHANGE | |
| // Package modified | |
| || isPackageModified(packageName)) { | |
| sci = findAvailSpellCheckerLocked(null, packageName); | |
| if (sci != null) { | |
| setCurrentSpellCheckerLocked(sci.getId()); | |
| } | |
| } | |
| } | |
| } | |
| } | |
| private static void buildSpellCheckerMapLocked(Context context, | |
| ArrayList<SpellCheckerInfo> list, HashMap<String, SpellCheckerInfo> map, | |
| TextServicesSettings settings) { | |
| list.clear(); | |
| map.clear(); | |
| final PackageManager pm = context.getPackageManager(); | |
| final List<ResolveInfo> services = pm.queryIntentServicesAsUser( | |
| new Intent(SpellCheckerService.SERVICE_INTERFACE), PackageManager.GET_META_DATA, | |
| settings.getCurrentUserId()); | |
| final int N = services.size(); | |
| for (int i = 0; i < N; ++i) { | |
| final ResolveInfo ri = services.get(i); | |
| final ServiceInfo si = ri.serviceInfo; | |
| final ComponentName compName = new ComponentName(si.packageName, si.name); | |
| if (!android.Manifest.permission.BIND_TEXT_SERVICE.equals(si.permission)) { | |
| Slog.w(TAG, "Skipping text service " + compName | |
| + ": it does not require the permission " | |
| + android.Manifest.permission.BIND_TEXT_SERVICE); | |
| continue; | |
| } | |
| if (DBG) Slog.d(TAG, "Add: " + compName); | |
| try { | |
| final SpellCheckerInfo sci = new SpellCheckerInfo(context, ri); | |
| if (sci.getSubtypeCount() <= 0) { | |
| Slog.w(TAG, "Skipping text service " + compName | |
| + ": it does not contain subtypes."); | |
| continue; | |
| } | |
| list.add(sci); | |
| map.put(sci.getId(), sci); | |
| } catch (XmlPullParserException e) { | |
| Slog.w(TAG, "Unable to load the spell checker " + compName, e); | |
| } catch (IOException e) { | |
| Slog.w(TAG, "Unable to load the spell checker " + compName, e); | |
| } | |
| } | |
| if (DBG) { | |
| Slog.d(TAG, "buildSpellCheckerMapLocked: " + list.size() + "," + map.size()); | |
| } | |
| } | |
| // --------------------------------------------------------------------------------------- | |
| // Check whether or not this is a valid IPC. Assumes an IPC is valid when either | |
| // 1) it comes from the system process | |
| // 2) the calling process' user id is identical to the current user id TSMS thinks. | |
| private boolean calledFromValidUser() { | |
| final int uid = Binder.getCallingUid(); | |
| final int userId = UserHandle.getUserId(uid); | |
| if (DBG) { | |
| Slog.d(TAG, "--- calledFromForegroundUserOrSystemProcess ? " | |
| + "calling uid = " + uid + " system uid = " + Process.SYSTEM_UID | |
| + " calling userId = " + userId + ", foreground user id = " | |
| + mSettings.getCurrentUserId()); | |
| try { | |
| final String[] packageNames = AppGlobals.getPackageManager().getPackagesForUid(uid); | |
| for (int i = 0; i < packageNames.length; ++i) { | |
| if (DBG) { | |
| Slog.d(TAG, "--- process name for "+ uid + " = " + packageNames[i]); | |
| } | |
| } | |
| } catch (RemoteException e) { | |
| } | |
| } | |
| if (uid == Process.SYSTEM_UID || userId == mSettings.getCurrentUserId()) { | |
| return true; | |
| } else { | |
| Slog.w(TAG, "--- IPC called from background users. Ignore. \n" + getStackTrace()); | |
| return false; | |
| } | |
| } | |
| private boolean bindCurrentSpellCheckerService( | |
| Intent service, ServiceConnection conn, int flags) { | |
| if (service == null || conn == null) { | |
| Slog.e(TAG, "--- bind failed: service = " + service + ", conn = " + conn); | |
| return false; | |
| } | |
| return mContext.bindServiceAsUser(service, conn, flags, | |
| new UserHandle(mSettings.getCurrentUserId())); | |
| } | |
| private void unbindServiceLocked() { | |
| for (SpellCheckerBindGroup scbg : mSpellCheckerBindGroups.values()) { | |
| scbg.removeAll(); | |
| } | |
| mSpellCheckerBindGroups.clear(); | |
| } | |
| // TODO: find an appropriate spell checker for specified locale | |
| private SpellCheckerInfo findAvailSpellCheckerLocked(String locale, String prefPackage) { | |
| final int spellCheckersCount = mSpellCheckerList.size(); | |
| if (spellCheckersCount == 0) { | |
| Slog.w(TAG, "no available spell checker services found"); | |
| return null; | |
| } | |
| if (prefPackage != null) { | |
| for (int i = 0; i < spellCheckersCount; ++i) { | |
| final SpellCheckerInfo sci = mSpellCheckerList.get(i); | |
| if (prefPackage.equals(sci.getPackageName())) { | |
| if (DBG) { | |
| Slog.d(TAG, "findAvailSpellCheckerLocked: " + sci.getPackageName()); | |
| } | |
| return sci; | |
| } | |
| } | |
| } | |
| if (spellCheckersCount > 1) { | |
| Slog.w(TAG, "more than one spell checker service found, picking first"); | |
| } | |
| return mSpellCheckerList.get(0); | |
| } | |
| // TODO: Save SpellCheckerService by supported languages. Currently only one spell | |
| // checker is saved. | |
| @Override | |
| public SpellCheckerInfo getCurrentSpellChecker(String locale) { | |
| // TODO: Make this work even for non-current users? | |
| if (!calledFromValidUser()) { | |
| return null; | |
| } | |
| synchronized (mSpellCheckerMap) { | |
| final String curSpellCheckerId = mSettings.getSelectedSpellChecker(); | |
| if (DBG) { | |
| Slog.w(TAG, "getCurrentSpellChecker: " + curSpellCheckerId); | |
| } | |
| if (TextUtils.isEmpty(curSpellCheckerId)) { | |
| return null; | |
| } | |
| return mSpellCheckerMap.get(curSpellCheckerId); | |
| } | |
| } | |
| // TODO: Respect allowImplicitlySelectedSubtype | |
| // TODO: Save SpellCheckerSubtype by supported languages by looking at "locale". | |
| @Override | |
| public SpellCheckerSubtype getCurrentSpellCheckerSubtype( | |
| String locale, boolean allowImplicitlySelectedSubtype) { | |
| // TODO: Make this work even for non-current users? | |
| if (!calledFromValidUser()) { | |
| return null; | |
| } | |
| synchronized (mSpellCheckerMap) { | |
| final String subtypeHashCodeStr = mSettings.getSelectedSpellCheckerSubtype(); | |
| if (DBG) { | |
| Slog.w(TAG, "getCurrentSpellCheckerSubtype: " + subtypeHashCodeStr); | |
| } | |
| final SpellCheckerInfo sci = getCurrentSpellChecker(null); | |
| if (sci == null || sci.getSubtypeCount() == 0) { | |
| if (DBG) { | |
| Slog.w(TAG, "Subtype not found."); | |
| } | |
| return null; | |
| } | |
| final int hashCode; | |
| if (!TextUtils.isEmpty(subtypeHashCodeStr)) { | |
| hashCode = Integer.valueOf(subtypeHashCodeStr); | |
| } else { | |
| hashCode = 0; | |
| } | |
| if (hashCode == 0 && !allowImplicitlySelectedSubtype) { | |
| return null; | |
| } | |
| String candidateLocale = null; | |
| if (hashCode == 0) { | |
| // Spell checker language settings == "auto" | |
| final InputMethodManager imm = | |
| (InputMethodManager)mContext.getSystemService(Context.INPUT_METHOD_SERVICE); | |
| if (imm != null) { | |
| final InputMethodSubtype currentInputMethodSubtype = | |
| imm.getCurrentInputMethodSubtype(); | |
| if (currentInputMethodSubtype != null) { | |
| final String localeString = currentInputMethodSubtype.getLocale(); | |
| if (!TextUtils.isEmpty(localeString)) { | |
| // 1. Use keyboard locale if available in the spell checker | |
| candidateLocale = localeString; | |
| } | |
| } | |
| } | |
| if (candidateLocale == null) { | |
| // 2. Use System locale if available in the spell checker | |
| candidateLocale = mContext.getResources().getConfiguration().locale.toString(); | |
| } | |
| } | |
| SpellCheckerSubtype candidate = null; | |
| for (int i = 0; i < sci.getSubtypeCount(); ++i) { | |
| final SpellCheckerSubtype scs = sci.getSubtypeAt(i); | |
| if (hashCode == 0) { | |
| final String scsLocale = scs.getLocale(); | |
| if (candidateLocale.equals(scsLocale)) { | |
| return scs; | |
| } else if (candidate == null) { | |
| if (candidateLocale.length() >= 2 && scsLocale.length() >= 2 | |
| && candidateLocale.startsWith(scsLocale)) { | |
| // Fall back to the applicable language | |
| candidate = scs; | |
| } | |
| } | |
| } else if (scs.hashCode() == hashCode) { | |
| if (DBG) { | |
| Slog.w(TAG, "Return subtype " + scs.hashCode() + ", input= " + locale | |
| + ", " + scs.getLocale()); | |
| } | |
| // 3. Use the user specified spell check language | |
| return scs; | |
| } | |
| } | |
| // 4. Fall back to the applicable language and return it if not null | |
| // 5. Simply just return it even if it's null which means we could find no suitable | |
| // spell check languages | |
| return candidate; | |
| } | |
| } | |
| @Override | |
| public void getSpellCheckerService(String sciId, String locale, | |
| ITextServicesSessionListener tsListener, ISpellCheckerSessionListener scListener, | |
| Bundle bundle) { | |
| if (!calledFromValidUser()) { | |
| return; | |
| } | |
| if (!mSystemReady) { | |
| return; | |
| } | |
| if (TextUtils.isEmpty(sciId) || tsListener == null || scListener == null) { | |
| Slog.e(TAG, "getSpellCheckerService: Invalid input."); | |
| return; | |
| } | |
| synchronized(mSpellCheckerMap) { | |
| if (!mSpellCheckerMap.containsKey(sciId)) { | |
| return; | |
| } | |
| final SpellCheckerInfo sci = mSpellCheckerMap.get(sciId); | |
| final int uid = Binder.getCallingUid(); | |
| if (mSpellCheckerBindGroups.containsKey(sciId)) { | |
| final SpellCheckerBindGroup bindGroup = mSpellCheckerBindGroups.get(sciId); | |
| if (bindGroup != null) { | |
| final InternalDeathRecipient recipient = | |
| mSpellCheckerBindGroups.get(sciId).addListener( | |
| tsListener, locale, scListener, uid, bundle); | |
| if (recipient == null) { | |
| if (DBG) { | |
| Slog.w(TAG, "Didn't create a death recipient."); | |
| } | |
| return; | |
| } | |
| if (bindGroup.mSpellChecker == null & bindGroup.mConnected) { | |
| Slog.e(TAG, "The state of the spell checker bind group is illegal."); | |
| bindGroup.removeAll(); | |
| } else if (bindGroup.mSpellChecker != null) { | |
| if (DBG) { | |
| Slog.w(TAG, "Existing bind found. Return a spell checker session now. " | |
| + "Listeners count = " + bindGroup.mListeners.size()); | |
| } | |
| try { | |
| final ISpellCheckerSession session = | |
| bindGroup.mSpellChecker.getISpellCheckerSession( | |
| recipient.mScLocale, recipient.mScListener, bundle); | |
| if (session != null) { | |
| tsListener.onServiceConnected(session); | |
| return; | |
| } else { | |
| if (DBG) { | |
| Slog.w(TAG, "Existing bind already expired. "); | |
| } | |
| bindGroup.removeAll(); | |
| } | |
| } catch (RemoteException e) { | |
| Slog.e(TAG, "Exception in getting spell checker session: " + e); | |
| bindGroup.removeAll(); | |
| } | |
| } | |
| } | |
| } | |
| final long ident = Binder.clearCallingIdentity(); | |
| try { | |
| startSpellCheckerServiceInnerLocked( | |
| sci, locale, tsListener, scListener, uid, bundle); | |
| } finally { | |
| Binder.restoreCallingIdentity(ident); | |
| } | |
| } | |
| return; | |
| } | |
| @Override | |
| public boolean isSpellCheckerEnabled() { | |
| if (!calledFromValidUser()) { | |
| return false; | |
| } | |
| synchronized(mSpellCheckerMap) { | |
| return isSpellCheckerEnabledLocked(); | |
| } | |
| } | |
| private void startSpellCheckerServiceInnerLocked(SpellCheckerInfo info, String locale, | |
| ITextServicesSessionListener tsListener, ISpellCheckerSessionListener scListener, | |
| int uid, Bundle bundle) { | |
| if (DBG) { | |
| Slog.w(TAG, "Start spell checker session inner locked."); | |
| } | |
| final String sciId = info.getId(); | |
| final InternalServiceConnection connection = new InternalServiceConnection( | |
| sciId, locale, bundle); | |
| final Intent serviceIntent = new Intent(SpellCheckerService.SERVICE_INTERFACE); | |
| serviceIntent.setComponent(info.getComponent()); | |
| if (DBG) { | |
| Slog.w(TAG, "bind service: " + info.getId()); | |
| } | |
| if (!bindCurrentSpellCheckerService(serviceIntent, connection, Context.BIND_AUTO_CREATE)) { | |
| Slog.e(TAG, "Failed to get a spell checker service."); | |
| return; | |
| } | |
| final SpellCheckerBindGroup group = new SpellCheckerBindGroup( | |
| connection, tsListener, locale, scListener, uid, bundle); | |
| mSpellCheckerBindGroups.put(sciId, group); | |
| } | |
| @Override | |
| public SpellCheckerInfo[] getEnabledSpellCheckers() { | |
| // TODO: Make this work even for non-current users? | |
| if (!calledFromValidUser()) { | |
| return null; | |
| } | |
| if (DBG) { | |
| Slog.d(TAG, "getEnabledSpellCheckers: " + mSpellCheckerList.size()); | |
| for (int i = 0; i < mSpellCheckerList.size(); ++i) { | |
| Slog.d(TAG, "EnabledSpellCheckers: " + mSpellCheckerList.get(i).getPackageName()); | |
| } | |
| } | |
| return mSpellCheckerList.toArray(new SpellCheckerInfo[mSpellCheckerList.size()]); | |
| } | |
| @Override | |
| public void finishSpellCheckerService(ISpellCheckerSessionListener listener) { | |
| if (!calledFromValidUser()) { | |
| return; | |
| } | |
| if (DBG) { | |
| Slog.d(TAG, "FinishSpellCheckerService"); | |
| } | |
| synchronized(mSpellCheckerMap) { | |
| final ArrayList<SpellCheckerBindGroup> removeList = | |
| new ArrayList<SpellCheckerBindGroup>(); | |
| for (SpellCheckerBindGroup group : mSpellCheckerBindGroups.values()) { | |
| if (group == null) continue; | |
| // Use removeList to avoid modifying mSpellCheckerBindGroups in this loop. | |
| removeList.add(group); | |
| } | |
| final int removeSize = removeList.size(); | |
| for (int i = 0; i < removeSize; ++i) { | |
| removeList.get(i).removeListener(listener); | |
| } | |
| } | |
| } | |
| @Override | |
| public void setCurrentSpellChecker(String locale, String sciId) { | |
| if (!calledFromValidUser()) { | |
| return; | |
| } | |
| synchronized(mSpellCheckerMap) { | |
| if (mContext.checkCallingOrSelfPermission( | |
| android.Manifest.permission.WRITE_SECURE_SETTINGS) | |
| != PackageManager.PERMISSION_GRANTED) { | |
| throw new SecurityException( | |
| "Requires permission " | |
| + android.Manifest.permission.WRITE_SECURE_SETTINGS); | |
| } | |
| setCurrentSpellCheckerLocked(sciId); | |
| } | |
| } | |
| @Override | |
| public void setCurrentSpellCheckerSubtype(String locale, int hashCode) { | |
| if (!calledFromValidUser()) { | |
| return; | |
| } | |
| synchronized(mSpellCheckerMap) { | |
| if (mContext.checkCallingOrSelfPermission( | |
| android.Manifest.permission.WRITE_SECURE_SETTINGS) | |
| != PackageManager.PERMISSION_GRANTED) { | |
| throw new SecurityException( | |
| "Requires permission " | |
| + android.Manifest.permission.WRITE_SECURE_SETTINGS); | |
| } | |
| setCurrentSpellCheckerSubtypeLocked(hashCode); | |
| } | |
| } | |
| @Override | |
| public void setSpellCheckerEnabled(boolean enabled) { | |
| if (!calledFromValidUser()) { | |
| return; | |
| } | |
| synchronized(mSpellCheckerMap) { | |
| if (mContext.checkCallingOrSelfPermission( | |
| android.Manifest.permission.WRITE_SECURE_SETTINGS) | |
| != PackageManager.PERMISSION_GRANTED) { | |
| throw new SecurityException( | |
| "Requires permission " | |
| + android.Manifest.permission.WRITE_SECURE_SETTINGS); | |
| } | |
| setSpellCheckerEnabledLocked(enabled); | |
| } | |
| } | |
| private void setCurrentSpellCheckerLocked(String sciId) { | |
| if (DBG) { | |
| Slog.w(TAG, "setCurrentSpellChecker: " + sciId); | |
| } | |
| if (TextUtils.isEmpty(sciId) || !mSpellCheckerMap.containsKey(sciId)) return; | |
| final SpellCheckerInfo currentSci = getCurrentSpellChecker(null); | |
| if (currentSci != null && currentSci.getId().equals(sciId)) { | |
| // Do nothing if the current spell checker is same as new spell checker. | |
| return; | |
| } | |
| final long ident = Binder.clearCallingIdentity(); | |
| try { | |
| mSettings.putSelectedSpellChecker(sciId); | |
| setCurrentSpellCheckerSubtypeLocked(0); | |
| } finally { | |
| Binder.restoreCallingIdentity(ident); | |
| } | |
| } | |
| private void setCurrentSpellCheckerSubtypeLocked(int hashCode) { | |
| if (DBG) { | |
| Slog.w(TAG, "setCurrentSpellCheckerSubtype: " + hashCode); | |
| } | |
| final SpellCheckerInfo sci = getCurrentSpellChecker(null); | |
| int tempHashCode = 0; | |
| for (int i = 0; sci != null && i < sci.getSubtypeCount(); ++i) { | |
| if(sci.getSubtypeAt(i).hashCode() == hashCode) { | |
| tempHashCode = hashCode; | |
| break; | |
| } | |
| } | |
| final long ident = Binder.clearCallingIdentity(); | |
| try { | |
| mSettings.putSelectedSpellCheckerSubtype(tempHashCode); | |
| } finally { | |
| Binder.restoreCallingIdentity(ident); | |
| } | |
| } | |
| private void setSpellCheckerEnabledLocked(boolean enabled) { | |
| if (DBG) { | |
| Slog.w(TAG, "setSpellCheckerEnabled: " + enabled); | |
| } | |
| final long ident = Binder.clearCallingIdentity(); | |
| try { | |
| mSettings.setSpellCheckerEnabled(enabled); | |
| } finally { | |
| Binder.restoreCallingIdentity(ident); | |
| } | |
| } | |
| private boolean isSpellCheckerEnabledLocked() { | |
| final long ident = Binder.clearCallingIdentity(); | |
| try { | |
| final boolean retval = mSettings.isSpellCheckerEnabled(); | |
| if (DBG) { | |
| Slog.w(TAG, "getSpellCheckerEnabled: " + retval); | |
| } | |
| return retval; | |
| } finally { | |
| Binder.restoreCallingIdentity(ident); | |
| } | |
| } | |
| @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 TextServicesManagerService from from pid=" | |
| + Binder.getCallingPid() | |
| + ", uid=" + Binder.getCallingUid()); | |
| return; | |
| } | |
| synchronized(mSpellCheckerMap) { | |
| pw.println("Current Text Services Manager state:"); | |
| pw.println(" Spell Checker Map:"); | |
| for (Map.Entry<String, SpellCheckerInfo> ent : mSpellCheckerMap.entrySet()) { | |
| pw.print(" "); pw.print(ent.getKey()); pw.println(":"); | |
| SpellCheckerInfo info = ent.getValue(); | |
| pw.print(" "); pw.print("id="); pw.println(info.getId()); | |
| pw.print(" "); pw.print("comp="); | |
| pw.println(info.getComponent().toShortString()); | |
| int NS = info.getSubtypeCount(); | |
| for (int i=0; i<NS; i++) { | |
| SpellCheckerSubtype st = info.getSubtypeAt(i); | |
| pw.print(" "); pw.print("Subtype #"); pw.print(i); pw.println(":"); | |
| pw.print(" "); pw.print("locale="); pw.println(st.getLocale()); | |
| pw.print(" "); pw.print("extraValue="); | |
| pw.println(st.getExtraValue()); | |
| } | |
| } | |
| pw.println(""); | |
| pw.println(" Spell Checker Bind Groups:"); | |
| for (Map.Entry<String, SpellCheckerBindGroup> ent | |
| : mSpellCheckerBindGroups.entrySet()) { | |
| SpellCheckerBindGroup grp = ent.getValue(); | |
| pw.print(" "); pw.print(ent.getKey()); pw.print(" "); | |
| pw.print(grp); pw.println(":"); | |
| pw.print(" "); pw.print("mInternalConnection="); | |
| pw.println(grp.mInternalConnection); | |
| pw.print(" "); pw.print("mSpellChecker="); | |
| pw.println(grp.mSpellChecker); | |
| pw.print(" "); pw.print("mBound="); pw.print(grp.mBound); | |
| pw.print(" mConnected="); pw.println(grp.mConnected); | |
| int NL = grp.mListeners.size(); | |
| for (int i=0; i<NL; i++) { | |
| InternalDeathRecipient listener = grp.mListeners.get(i); | |
| pw.print(" "); pw.print("Listener #"); pw.print(i); pw.println(":"); | |
| pw.print(" "); pw.print("mTsListener="); | |
| pw.println(listener.mTsListener); | |
| pw.print(" "); pw.print("mScListener="); | |
| pw.println(listener.mScListener); | |
| pw.print(" "); pw.print("mGroup="); | |
| pw.println(listener.mGroup); | |
| pw.print(" "); pw.print("mScLocale="); | |
| pw.print(listener.mScLocale); | |
| pw.print(" mUid="); pw.println(listener.mUid); | |
| } | |
| } | |
| } | |
| } | |
| // SpellCheckerBindGroup contains active text service session listeners. | |
| // If there are no listeners anymore, the SpellCheckerBindGroup instance will be removed from | |
| // mSpellCheckerBindGroups | |
| private class SpellCheckerBindGroup { | |
| private final String TAG = SpellCheckerBindGroup.class.getSimpleName(); | |
| private final InternalServiceConnection mInternalConnection; | |
| private final CopyOnWriteArrayList<InternalDeathRecipient> mListeners = | |
| new CopyOnWriteArrayList<InternalDeathRecipient>(); | |
| public boolean mBound; | |
| public ISpellCheckerService mSpellChecker; | |
| public boolean mConnected; | |
| public SpellCheckerBindGroup(InternalServiceConnection connection, | |
| ITextServicesSessionListener listener, String locale, | |
| ISpellCheckerSessionListener scListener, int uid, Bundle bundle) { | |
| mInternalConnection = connection; | |
| mBound = true; | |
| mConnected = false; | |
| addListener(listener, locale, scListener, uid, bundle); | |
| } | |
| public void onServiceConnected(ISpellCheckerService spellChecker) { | |
| if (DBG) { | |
| Slog.d(TAG, "onServiceConnected"); | |
| } | |
| for (InternalDeathRecipient listener : mListeners) { | |
| try { | |
| final ISpellCheckerSession session = spellChecker.getISpellCheckerSession( | |
| listener.mScLocale, listener.mScListener, listener.mBundle); | |
| synchronized(mSpellCheckerMap) { | |
| if (mListeners.contains(listener)) { | |
| listener.mTsListener.onServiceConnected(session); | |
| } | |
| } | |
| } catch (RemoteException e) { | |
| Slog.e(TAG, "Exception in getting the spell checker session." | |
| + "Reconnect to the spellchecker. ", e); | |
| removeAll(); | |
| return; | |
| } | |
| } | |
| synchronized(mSpellCheckerMap) { | |
| mSpellChecker = spellChecker; | |
| mConnected = true; | |
| } | |
| } | |
| public InternalDeathRecipient addListener(ITextServicesSessionListener tsListener, | |
| String locale, ISpellCheckerSessionListener scListener, int uid, Bundle bundle) { | |
| if (DBG) { | |
| Slog.d(TAG, "addListener: " + locale); | |
| } | |
| InternalDeathRecipient recipient = null; | |
| synchronized(mSpellCheckerMap) { | |
| try { | |
| final int size = mListeners.size(); | |
| for (int i = 0; i < size; ++i) { | |
| if (mListeners.get(i).hasSpellCheckerListener(scListener)) { | |
| // do not add the lister if the group already contains this. | |
| return null; | |
| } | |
| } | |
| recipient = new InternalDeathRecipient( | |
| this, tsListener, locale, scListener, uid, bundle); | |
| scListener.asBinder().linkToDeath(recipient, 0); | |
| mListeners.add(recipient); | |
| } catch(RemoteException e) { | |
| // do nothing | |
| } | |
| cleanLocked(); | |
| } | |
| return recipient; | |
| } | |
| public void removeListener(ISpellCheckerSessionListener listener) { | |
| if (DBG) { | |
| Slog.w(TAG, "remove listener: " + listener.hashCode()); | |
| } | |
| synchronized(mSpellCheckerMap) { | |
| final int size = mListeners.size(); | |
| final ArrayList<InternalDeathRecipient> removeList = | |
| new ArrayList<InternalDeathRecipient>(); | |
| for (int i = 0; i < size; ++i) { | |
| final InternalDeathRecipient tempRecipient = mListeners.get(i); | |
| if(tempRecipient.hasSpellCheckerListener(listener)) { | |
| if (DBG) { | |
| Slog.w(TAG, "found existing listener."); | |
| } | |
| removeList.add(tempRecipient); | |
| } | |
| } | |
| final int removeSize = removeList.size(); | |
| for (int i = 0; i < removeSize; ++i) { | |
| if (DBG) { | |
| Slog.w(TAG, "Remove " + removeList.get(i)); | |
| } | |
| final InternalDeathRecipient idr = removeList.get(i); | |
| idr.mScListener.asBinder().unlinkToDeath(idr, 0); | |
| mListeners.remove(idr); | |
| } | |
| cleanLocked(); | |
| } | |
| } | |
| // cleanLocked may remove elements from mSpellCheckerBindGroups | |
| private void cleanLocked() { | |
| if (DBG) { | |
| Slog.d(TAG, "cleanLocked"); | |
| } | |
| // If there are no more active listeners, clean up. Only do this | |
| // once. | |
| if (mBound && mListeners.isEmpty()) { | |
| mBound = false; | |
| final String sciId = mInternalConnection.mSciId; | |
| SpellCheckerBindGroup cur = mSpellCheckerBindGroups.get(sciId); | |
| if (cur == this) { | |
| if (DBG) { | |
| Slog.d(TAG, "Remove bind group."); | |
| } | |
| mSpellCheckerBindGroups.remove(sciId); | |
| } | |
| mContext.unbindService(mInternalConnection); | |
| } | |
| } | |
| public void removeAll() { | |
| Slog.e(TAG, "Remove the spell checker bind unexpectedly."); | |
| synchronized(mSpellCheckerMap) { | |
| final int size = mListeners.size(); | |
| for (int i = 0; i < size; ++i) { | |
| final InternalDeathRecipient idr = mListeners.get(i); | |
| idr.mScListener.asBinder().unlinkToDeath(idr, 0); | |
| } | |
| mListeners.clear(); | |
| cleanLocked(); | |
| } | |
| } | |
| } | |
| private class InternalServiceConnection implements ServiceConnection { | |
| private final String mSciId; | |
| private final String mLocale; | |
| private final Bundle mBundle; | |
| public InternalServiceConnection( | |
| String id, String locale, Bundle bundle) { | |
| mSciId = id; | |
| mLocale = locale; | |
| mBundle = bundle; | |
| } | |
| @Override | |
| public void onServiceConnected(ComponentName name, IBinder service) { | |
| synchronized(mSpellCheckerMap) { | |
| onServiceConnectedInnerLocked(name, service); | |
| } | |
| } | |
| private void onServiceConnectedInnerLocked(ComponentName name, IBinder service) { | |
| if (DBG) { | |
| Slog.w(TAG, "onServiceConnected: " + name); | |
| } | |
| final ISpellCheckerService spellChecker = | |
| ISpellCheckerService.Stub.asInterface(service); | |
| final SpellCheckerBindGroup group = mSpellCheckerBindGroups.get(mSciId); | |
| if (group != null && this == group.mInternalConnection) { | |
| group.onServiceConnected(spellChecker); | |
| } | |
| } | |
| @Override | |
| public void onServiceDisconnected(ComponentName name) { | |
| synchronized(mSpellCheckerMap) { | |
| final SpellCheckerBindGroup group = mSpellCheckerBindGroups.get(mSciId); | |
| if (group != null && this == group.mInternalConnection) { | |
| mSpellCheckerBindGroups.remove(mSciId); | |
| } | |
| } | |
| } | |
| } | |
| private class InternalDeathRecipient implements IBinder.DeathRecipient { | |
| public final ITextServicesSessionListener mTsListener; | |
| public final ISpellCheckerSessionListener mScListener; | |
| public final String mScLocale; | |
| private final SpellCheckerBindGroup mGroup; | |
| public final int mUid; | |
| public final Bundle mBundle; | |
| public InternalDeathRecipient(SpellCheckerBindGroup group, | |
| ITextServicesSessionListener tsListener, String scLocale, | |
| ISpellCheckerSessionListener scListener, int uid, Bundle bundle) { | |
| mTsListener = tsListener; | |
| mScListener = scListener; | |
| mScLocale = scLocale; | |
| mGroup = group; | |
| mUid = uid; | |
| mBundle = bundle; | |
| } | |
| public boolean hasSpellCheckerListener(ISpellCheckerSessionListener listener) { | |
| return listener.asBinder().equals(mScListener.asBinder()); | |
| } | |
| @Override | |
| public void binderDied() { | |
| mGroup.removeListener(mScListener); | |
| } | |
| } | |
| private static class TextServicesSettings { | |
| private final ContentResolver mResolver; | |
| private int mCurrentUserId; | |
| public TextServicesSettings(ContentResolver resolver, int userId) { | |
| mResolver = resolver; | |
| mCurrentUserId = userId; | |
| } | |
| public void setCurrentUserId(int userId) { | |
| if (DBG) { | |
| Slog.d(TAG, "--- Swtich the current user from " + mCurrentUserId + " to " | |
| + userId + ", new ime = " + getSelectedSpellChecker()); | |
| } | |
| // TSMS settings are kept per user, so keep track of current user | |
| mCurrentUserId = userId; | |
| } | |
| public int getCurrentUserId() { | |
| return mCurrentUserId; | |
| } | |
| public void putSelectedSpellChecker(String sciId) { | |
| Settings.Secure.putStringForUser(mResolver, | |
| Settings.Secure.SELECTED_SPELL_CHECKER, sciId, mCurrentUserId); | |
| } | |
| public void putSelectedSpellCheckerSubtype(int hashCode) { | |
| Settings.Secure.putStringForUser(mResolver, | |
| Settings.Secure.SELECTED_SPELL_CHECKER_SUBTYPE, String.valueOf(hashCode), | |
| mCurrentUserId); | |
| } | |
| public void setSpellCheckerEnabled(boolean enabled) { | |
| Settings.Secure.putIntForUser(mResolver, | |
| Settings.Secure.SPELL_CHECKER_ENABLED, enabled ? 1 : 0, mCurrentUserId); | |
| } | |
| public String getSelectedSpellChecker() { | |
| return Settings.Secure.getStringForUser(mResolver, | |
| Settings.Secure.SELECTED_SPELL_CHECKER, mCurrentUserId); | |
| } | |
| public String getSelectedSpellCheckerSubtype() { | |
| return Settings.Secure.getStringForUser(mResolver, | |
| Settings.Secure.SELECTED_SPELL_CHECKER_SUBTYPE, mCurrentUserId); | |
| } | |
| public boolean isSpellCheckerEnabled() { | |
| return Settings.Secure.getIntForUser(mResolver, | |
| Settings.Secure.SPELL_CHECKER_ENABLED, 1, mCurrentUserId) == 1; | |
| } | |
| } | |
| // ---------------------------------------------------------------------- | |
| // Utilities for debug | |
| private static String getStackTrace() { | |
| final StringBuilder sb = new StringBuilder(); | |
| try { | |
| throw new RuntimeException(); | |
| } catch (RuntimeException e) { | |
| final StackTraceElement[] frames = e.getStackTrace(); | |
| // Start at 1 because the first frame is here and we don't care about it | |
| for (int j = 1; j < frames.length; ++j) { | |
| sb.append(frames[j].toString() + "\n"); | |
| } | |
| } | |
| return sb.toString(); | |
| } | |
| } |