409 lines
17 KiB
Java
409 lines
17 KiB
Java
/*
|
|
* Copyright (C) 2012 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.inputmethod.latin;
|
|
|
|
import static com.android.inputmethod.latin.Constants.Subtype.KEYBOARD_MODE;
|
|
|
|
import android.content.Context;
|
|
import android.content.SharedPreferences;
|
|
import android.os.IBinder;
|
|
import android.preference.PreferenceManager;
|
|
import android.util.Log;
|
|
import android.view.inputmethod.InputMethodInfo;
|
|
import android.view.inputmethod.InputMethodManager;
|
|
import android.view.inputmethod.InputMethodSubtype;
|
|
|
|
import com.android.inputmethod.compat.InputMethodManagerCompatWrapper;
|
|
import com.android.inputmethod.latin.settings.Settings;
|
|
import com.android.inputmethod.latin.utils.AdditionalSubtypeUtils;
|
|
import com.android.inputmethod.latin.utils.CollectionUtils;
|
|
import com.android.inputmethod.latin.utils.SubtypeLocaleUtils;
|
|
|
|
import java.util.Collections;
|
|
import java.util.HashMap;
|
|
import java.util.List;
|
|
|
|
/**
|
|
* Enrichment class for InputMethodManager to simplify interaction and add functionality.
|
|
*/
|
|
public final class RichInputMethodManager {
|
|
private static final String TAG = RichInputMethodManager.class.getSimpleName();
|
|
|
|
private RichInputMethodManager() {
|
|
// This utility class is not publicly instantiable.
|
|
}
|
|
|
|
private static final RichInputMethodManager sInstance = new RichInputMethodManager();
|
|
|
|
private InputMethodManagerCompatWrapper mImmWrapper;
|
|
private InputMethodInfoCache mInputMethodInfoCache;
|
|
final HashMap<InputMethodInfo, List<InputMethodSubtype>>
|
|
mSubtypeListCacheWithImplicitlySelectedSubtypes = CollectionUtils.newHashMap();
|
|
final HashMap<InputMethodInfo, List<InputMethodSubtype>>
|
|
mSubtypeListCacheWithoutImplicitlySelectedSubtypes = CollectionUtils.newHashMap();
|
|
|
|
private static final int INDEX_NOT_FOUND = -1;
|
|
|
|
public static RichInputMethodManager getInstance() {
|
|
sInstance.checkInitialized();
|
|
return sInstance;
|
|
}
|
|
|
|
public static void init(final Context context) {
|
|
final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
|
|
sInstance.initInternal(context, prefs);
|
|
}
|
|
|
|
private boolean isInitialized() {
|
|
return mImmWrapper != null;
|
|
}
|
|
|
|
private void checkInitialized() {
|
|
if (!isInitialized()) {
|
|
throw new RuntimeException(TAG + " is used before initialization");
|
|
}
|
|
}
|
|
|
|
private void initInternal(final Context context, final SharedPreferences prefs) {
|
|
if (isInitialized()) {
|
|
return;
|
|
}
|
|
mImmWrapper = new InputMethodManagerCompatWrapper(context);
|
|
mInputMethodInfoCache = new InputMethodInfoCache(
|
|
mImmWrapper.mImm, context.getPackageName());
|
|
|
|
// Initialize additional subtypes.
|
|
SubtypeLocaleUtils.init(context);
|
|
final String prefAdditionalSubtypes = Settings.readPrefAdditionalSubtypes(
|
|
prefs, context.getResources());
|
|
final InputMethodSubtype[] additionalSubtypes =
|
|
AdditionalSubtypeUtils.createAdditionalSubtypesArray(prefAdditionalSubtypes);
|
|
setAdditionalInputMethodSubtypes(additionalSubtypes);
|
|
}
|
|
|
|
public InputMethodManager getInputMethodManager() {
|
|
checkInitialized();
|
|
return mImmWrapper.mImm;
|
|
}
|
|
|
|
public List<InputMethodSubtype> getMyEnabledInputMethodSubtypeList(
|
|
boolean allowsImplicitlySelectedSubtypes) {
|
|
return getEnabledInputMethodSubtypeList(
|
|
getInputMethodInfoOfThisIme(), allowsImplicitlySelectedSubtypes);
|
|
}
|
|
|
|
public boolean switchToNextInputMethod(final IBinder token, final boolean onlyCurrentIme) {
|
|
if (mImmWrapper.switchToNextInputMethod(token, onlyCurrentIme)) {
|
|
return true;
|
|
}
|
|
// Was not able to call {@link InputMethodManager#switchToNextInputMethodIBinder,boolean)}
|
|
// because the current device is running ICS or previous and lacks the API.
|
|
if (switchToNextInputSubtypeInThisIme(token, onlyCurrentIme)) {
|
|
return true;
|
|
}
|
|
return switchToNextInputMethodAndSubtype(token);
|
|
}
|
|
|
|
private boolean switchToNextInputSubtypeInThisIme(final IBinder token,
|
|
final boolean onlyCurrentIme) {
|
|
final InputMethodManager imm = mImmWrapper.mImm;
|
|
final InputMethodSubtype currentSubtype = imm.getCurrentInputMethodSubtype();
|
|
final List<InputMethodSubtype> enabledSubtypes = getMyEnabledInputMethodSubtypeList(
|
|
true /* allowsImplicitlySelectedSubtypes */);
|
|
final int currentIndex = getSubtypeIndexInList(currentSubtype, enabledSubtypes);
|
|
if (currentIndex == INDEX_NOT_FOUND) {
|
|
Log.w(TAG, "Can't find current subtype in enabled subtypes: subtype="
|
|
+ SubtypeLocaleUtils.getSubtypeNameForLogging(currentSubtype));
|
|
return false;
|
|
}
|
|
final int nextIndex = (currentIndex + 1) % enabledSubtypes.size();
|
|
if (nextIndex <= currentIndex && !onlyCurrentIme) {
|
|
// The current subtype is the last or only enabled one and it needs to switch to
|
|
// next IME.
|
|
return false;
|
|
}
|
|
final InputMethodSubtype nextSubtype = enabledSubtypes.get(nextIndex);
|
|
setInputMethodAndSubtype(token, nextSubtype);
|
|
return true;
|
|
}
|
|
|
|
private boolean switchToNextInputMethodAndSubtype(final IBinder token) {
|
|
final InputMethodManager imm = mImmWrapper.mImm;
|
|
final List<InputMethodInfo> enabledImis = imm.getEnabledInputMethodList();
|
|
final int currentIndex = getImiIndexInList(getInputMethodInfoOfThisIme(), enabledImis);
|
|
if (currentIndex == INDEX_NOT_FOUND) {
|
|
Log.w(TAG, "Can't find current IME in enabled IMEs: IME package="
|
|
+ getInputMethodInfoOfThisIme().getPackageName());
|
|
return false;
|
|
}
|
|
final InputMethodInfo nextImi = getNextNonAuxiliaryIme(currentIndex, enabledImis);
|
|
final List<InputMethodSubtype> enabledSubtypes = getEnabledInputMethodSubtypeList(nextImi,
|
|
true /* allowsImplicitlySelectedSubtypes */);
|
|
if (enabledSubtypes.isEmpty()) {
|
|
// The next IME has no subtype.
|
|
imm.setInputMethod(token, nextImi.getId());
|
|
return true;
|
|
}
|
|
final InputMethodSubtype firstSubtype = enabledSubtypes.get(0);
|
|
imm.setInputMethodAndSubtype(token, nextImi.getId(), firstSubtype);
|
|
return true;
|
|
}
|
|
|
|
private static int getImiIndexInList(final InputMethodInfo inputMethodInfo,
|
|
final List<InputMethodInfo> imiList) {
|
|
final int count = imiList.size();
|
|
for (int index = 0; index < count; index++) {
|
|
final InputMethodInfo imi = imiList.get(index);
|
|
if (imi.equals(inputMethodInfo)) {
|
|
return index;
|
|
}
|
|
}
|
|
return INDEX_NOT_FOUND;
|
|
}
|
|
|
|
// This method mimics {@link InputMethodManager#switchToNextInputMethod(IBinder,boolean)}.
|
|
private static InputMethodInfo getNextNonAuxiliaryIme(final int currentIndex,
|
|
final List<InputMethodInfo> imiList) {
|
|
final int count = imiList.size();
|
|
for (int i = 1; i < count; i++) {
|
|
final int nextIndex = (currentIndex + i) % count;
|
|
final InputMethodInfo nextImi = imiList.get(nextIndex);
|
|
if (!isAuxiliaryIme(nextImi)) {
|
|
return nextImi;
|
|
}
|
|
}
|
|
return imiList.get(currentIndex);
|
|
}
|
|
|
|
// Copied from {@link InputMethodInfo}. See how auxiliary of IME is determined.
|
|
private static boolean isAuxiliaryIme(final InputMethodInfo imi) {
|
|
final int count = imi.getSubtypeCount();
|
|
if (count == 0) {
|
|
return false;
|
|
}
|
|
for (int index = 0; index < count; index++) {
|
|
final InputMethodSubtype subtype = imi.getSubtypeAt(index);
|
|
if (!subtype.isAuxiliary()) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
private static class InputMethodInfoCache {
|
|
private final InputMethodManager mImm;
|
|
private final String mImePackageName;
|
|
|
|
private InputMethodInfo mCachedValue;
|
|
|
|
public InputMethodInfoCache(final InputMethodManager imm, final String imePackageName) {
|
|
mImm = imm;
|
|
mImePackageName = imePackageName;
|
|
}
|
|
|
|
public synchronized InputMethodInfo get() {
|
|
if (mCachedValue != null) {
|
|
return mCachedValue;
|
|
}
|
|
for (final InputMethodInfo imi : mImm.getInputMethodList()) {
|
|
if (imi.getPackageName().equals(mImePackageName)) {
|
|
mCachedValue = imi;
|
|
return imi;
|
|
}
|
|
}
|
|
throw new RuntimeException("Input method id for " + mImePackageName + " not found.");
|
|
}
|
|
|
|
public synchronized void clear() {
|
|
mCachedValue = null;
|
|
}
|
|
}
|
|
|
|
public InputMethodInfo getInputMethodInfoOfThisIme() {
|
|
return mInputMethodInfoCache.get();
|
|
}
|
|
|
|
public String getInputMethodIdOfThisIme() {
|
|
return getInputMethodInfoOfThisIme().getId();
|
|
}
|
|
|
|
public boolean checkIfSubtypeBelongsToThisImeAndEnabled(final InputMethodSubtype subtype) {
|
|
return checkIfSubtypeBelongsToImeAndEnabled(getInputMethodInfoOfThisIme(), subtype);
|
|
}
|
|
|
|
public boolean checkIfSubtypeBelongsToThisImeAndImplicitlyEnabled(
|
|
final InputMethodSubtype subtype) {
|
|
final boolean subtypeEnabled = checkIfSubtypeBelongsToThisImeAndEnabled(subtype);
|
|
final boolean subtypeExplicitlyEnabled = checkIfSubtypeBelongsToList(
|
|
subtype, getMyEnabledInputMethodSubtypeList(
|
|
false /* allowsImplicitlySelectedSubtypes */));
|
|
return subtypeEnabled && !subtypeExplicitlyEnabled;
|
|
}
|
|
|
|
public boolean checkIfSubtypeBelongsToImeAndEnabled(final InputMethodInfo imi,
|
|
final InputMethodSubtype subtype) {
|
|
return checkIfSubtypeBelongsToList(subtype, getEnabledInputMethodSubtypeList(imi,
|
|
true /* allowsImplicitlySelectedSubtypes */));
|
|
}
|
|
|
|
private static boolean checkIfSubtypeBelongsToList(final InputMethodSubtype subtype,
|
|
final List<InputMethodSubtype> subtypes) {
|
|
return getSubtypeIndexInList(subtype, subtypes) != INDEX_NOT_FOUND;
|
|
}
|
|
|
|
private static int getSubtypeIndexInList(final InputMethodSubtype subtype,
|
|
final List<InputMethodSubtype> subtypes) {
|
|
final int count = subtypes.size();
|
|
for (int index = 0; index < count; index++) {
|
|
final InputMethodSubtype ims = subtypes.get(index);
|
|
if (ims.equals(subtype)) {
|
|
return index;
|
|
}
|
|
}
|
|
return INDEX_NOT_FOUND;
|
|
}
|
|
|
|
public boolean checkIfSubtypeBelongsToThisIme(final InputMethodSubtype subtype) {
|
|
return getSubtypeIndexInIme(subtype, getInputMethodInfoOfThisIme()) != INDEX_NOT_FOUND;
|
|
}
|
|
|
|
private static int getSubtypeIndexInIme(final InputMethodSubtype subtype,
|
|
final InputMethodInfo imi) {
|
|
final int count = imi.getSubtypeCount();
|
|
for (int index = 0; index < count; index++) {
|
|
final InputMethodSubtype ims = imi.getSubtypeAt(index);
|
|
if (ims.equals(subtype)) {
|
|
return index;
|
|
}
|
|
}
|
|
return INDEX_NOT_FOUND;
|
|
}
|
|
|
|
public InputMethodSubtype getCurrentInputMethodSubtype(
|
|
final InputMethodSubtype defaultSubtype) {
|
|
final InputMethodSubtype currentSubtype = mImmWrapper.mImm.getCurrentInputMethodSubtype();
|
|
return (currentSubtype != null) ? currentSubtype : defaultSubtype;
|
|
}
|
|
|
|
public boolean hasMultipleEnabledIMEsOrSubtypes(final boolean shouldIncludeAuxiliarySubtypes) {
|
|
final List<InputMethodInfo> enabledImis = mImmWrapper.mImm.getEnabledInputMethodList();
|
|
return hasMultipleEnabledSubtypes(shouldIncludeAuxiliarySubtypes, enabledImis);
|
|
}
|
|
|
|
public boolean hasMultipleEnabledSubtypesInThisIme(
|
|
final boolean shouldIncludeAuxiliarySubtypes) {
|
|
final List<InputMethodInfo> imiList = Collections.singletonList(
|
|
getInputMethodInfoOfThisIme());
|
|
return hasMultipleEnabledSubtypes(shouldIncludeAuxiliarySubtypes, imiList);
|
|
}
|
|
|
|
private boolean hasMultipleEnabledSubtypes(final boolean shouldIncludeAuxiliarySubtypes,
|
|
final List<InputMethodInfo> imiList) {
|
|
// Number of the filtered IMEs
|
|
int filteredImisCount = 0;
|
|
|
|
for (InputMethodInfo imi : imiList) {
|
|
// We can return true immediately after we find two or more filtered IMEs.
|
|
if (filteredImisCount > 1) return true;
|
|
final List<InputMethodSubtype> subtypes = getEnabledInputMethodSubtypeList(imi, true);
|
|
// IMEs that have no subtypes should be counted.
|
|
if (subtypes.isEmpty()) {
|
|
++filteredImisCount;
|
|
continue;
|
|
}
|
|
|
|
int auxCount = 0;
|
|
for (InputMethodSubtype subtype : subtypes) {
|
|
if (subtype.isAuxiliary()) {
|
|
++auxCount;
|
|
}
|
|
}
|
|
final int nonAuxCount = subtypes.size() - auxCount;
|
|
|
|
// IMEs that have one or more non-auxiliary subtypes should be counted.
|
|
// If shouldIncludeAuxiliarySubtypes is true, IMEs that have two or more auxiliary
|
|
// subtypes should be counted as well.
|
|
if (nonAuxCount > 0 || (shouldIncludeAuxiliarySubtypes && auxCount > 1)) {
|
|
++filteredImisCount;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (filteredImisCount > 1) {
|
|
return true;
|
|
}
|
|
final List<InputMethodSubtype> subtypes = getMyEnabledInputMethodSubtypeList(true);
|
|
int keyboardCount = 0;
|
|
// imm.getEnabledInputMethodSubtypeList(null, true) will return the current IME's
|
|
// both explicitly and implicitly enabled input method subtype.
|
|
// (The current IME should be LatinIME.)
|
|
for (InputMethodSubtype subtype : subtypes) {
|
|
if (KEYBOARD_MODE.equals(subtype.getMode())) {
|
|
++keyboardCount;
|
|
}
|
|
}
|
|
return keyboardCount > 1;
|
|
}
|
|
|
|
public InputMethodSubtype findSubtypeByLocaleAndKeyboardLayoutSet(final String localeString,
|
|
final String keyboardLayoutSetName) {
|
|
final InputMethodInfo myImi = getInputMethodInfoOfThisIme();
|
|
final int count = myImi.getSubtypeCount();
|
|
for (int i = 0; i < count; i++) {
|
|
final InputMethodSubtype subtype = myImi.getSubtypeAt(i);
|
|
final String layoutName = SubtypeLocaleUtils.getKeyboardLayoutSetName(subtype);
|
|
if (localeString.equals(subtype.getLocale())
|
|
&& keyboardLayoutSetName.equals(layoutName)) {
|
|
return subtype;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
public void setInputMethodAndSubtype(final IBinder token, final InputMethodSubtype subtype) {
|
|
mImmWrapper.mImm.setInputMethodAndSubtype(
|
|
token, getInputMethodIdOfThisIme(), subtype);
|
|
}
|
|
|
|
public void setAdditionalInputMethodSubtypes(final InputMethodSubtype[] subtypes) {
|
|
mImmWrapper.mImm.setAdditionalInputMethodSubtypes(
|
|
getInputMethodIdOfThisIme(), subtypes);
|
|
// Clear the cache so that we go read the {@link InputMethodInfo} of this IME and list of
|
|
// subtypes again next time.
|
|
clearSubtypeCaches();
|
|
}
|
|
|
|
private List<InputMethodSubtype> getEnabledInputMethodSubtypeList(final InputMethodInfo imi,
|
|
final boolean allowsImplicitlySelectedSubtypes) {
|
|
final HashMap<InputMethodInfo, List<InputMethodSubtype>> cache =
|
|
allowsImplicitlySelectedSubtypes
|
|
? mSubtypeListCacheWithImplicitlySelectedSubtypes
|
|
: mSubtypeListCacheWithoutImplicitlySelectedSubtypes;
|
|
final List<InputMethodSubtype> cachedList = cache.get(imi);
|
|
if (null != cachedList) return cachedList;
|
|
final List<InputMethodSubtype> result = mImmWrapper.mImm.getEnabledInputMethodSubtypeList(
|
|
imi, allowsImplicitlySelectedSubtypes);
|
|
cache.put(imi, result);
|
|
return result;
|
|
}
|
|
|
|
public void clearSubtypeCaches() {
|
|
mSubtypeListCacheWithImplicitlySelectedSubtypes.clear();
|
|
mSubtypeListCacheWithoutImplicitlySelectedSubtypes.clear();
|
|
mInputMethodInfoCache.clear();
|
|
}
|
|
}
|