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/*
* Copyright (C) 2013 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 org.kelar.inputmethod.latin.userdictionary;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.preference.Preference;
import android.preference.PreferenceFragment;
import android.preference.PreferenceGroup;
import android.provider.UserDictionary;
import android.text.TextUtils;
import android.view.inputmethod.InputMethodInfo;
import android.view.inputmethod.InputMethodManager;
import android.view.inputmethod.InputMethodSubtype;
import org.kelar.inputmethod.latin.R;
import org.kelar.inputmethod.latin.common.LocaleUtils;
import java.util.List;
import java.util.Locale;
import java.util.TreeSet;
import javax.annotation.Nullable;
// Caveat: This class is basically taken from
// packages/apps/Settings/src/com/android/settings/inputmethod/UserDictionaryList.java
// in order to deal with some devices that have issues with the user dictionary handling
public class UserDictionaryList extends PreferenceFragment {
public static final String USER_DICTIONARY_SETTINGS_INTENT_ACTION =
"android.settings.USER_DICTIONARY_SETTINGS";
@Override
public void onCreate(final Bundle icicle) {
super.onCreate(icicle);
setPreferenceScreen(getPreferenceManager().createPreferenceScreen(getActivity()));
}
public static TreeSet<String> getUserDictionaryLocalesSet(final Activity activity) {
final Cursor cursor = activity.getContentResolver().query(UserDictionary.Words.CONTENT_URI,
new String[] { UserDictionary.Words.LOCALE },
null, null, null);
final TreeSet<String> localeSet = new TreeSet<>();
if (null == cursor) {
// The user dictionary service is not present or disabled. Return null.
return null;
}
try {
if (cursor.moveToFirst()) {
final int columnIndex = cursor.getColumnIndex(UserDictionary.Words.LOCALE);
do {
final String locale = cursor.getString(columnIndex);
localeSet.add(null != locale ? locale : "");
} while (cursor.moveToNext());
}
} finally {
cursor.close();
}
if (!UserDictionarySettings.IS_SHORTCUT_API_SUPPORTED) {
// For ICS, we need to show "For all languages" in case that the keyboard locale
// is different from the system locale
localeSet.add("");
}
final InputMethodManager imm =
(InputMethodManager)activity.getSystemService(Context.INPUT_METHOD_SERVICE);
final List<InputMethodInfo> imis = imm.getEnabledInputMethodList();
for (final InputMethodInfo imi : imis) {
final List<InputMethodSubtype> subtypes =
imm.getEnabledInputMethodSubtypeList(
imi, true /* allowsImplicitlySelectedSubtypes */);
for (InputMethodSubtype subtype : subtypes) {
final String locale = subtype.getLocale();
if (!TextUtils.isEmpty(locale)) {
localeSet.add(locale);
}
}
}
// We come here after we have collected locales from existing user dictionary entries and
// enabled subtypes. If we already have the locale-without-country version of the system
// locale, we don't add the system locale to avoid confusion even though it's technically
// correct to add it.
if (!localeSet.contains(Locale.getDefault().getLanguage().toString())) {
localeSet.add(Locale.getDefault().toString());
}
return localeSet;
}
/**
* Creates the entries that allow the user to go into the user dictionary for each locale.
* @param userDictGroup The group to put the settings in.
*/
protected void createUserDictSettings(final PreferenceGroup userDictGroup) {
final Activity activity = getActivity();
userDictGroup.removeAll();
final TreeSet<String> localeSet =
UserDictionaryList.getUserDictionaryLocalesSet(activity);
if (localeSet.size() > 1) {
// Have an "All languages" entry in the languages list if there are two or more active
// languages
localeSet.add("");
}
if (localeSet.isEmpty()) {
userDictGroup.addPreference(createUserDictionaryPreference(null));
} else {
for (String locale : localeSet) {
userDictGroup.addPreference(createUserDictionaryPreference(locale));
}
}
}
/**
* Create a single User Dictionary Preference object, with its parameters set.
* @param localeString The locale for which this user dictionary is for.
* @return The corresponding preference.
*/
protected Preference createUserDictionaryPreference(@Nullable final String localeString) {
final Preference newPref = new Preference(getActivity());
final Intent intent = new Intent(USER_DICTIONARY_SETTINGS_INTENT_ACTION);
if (null == localeString) {
newPref.setTitle(Locale.getDefault().getDisplayName());
} else {
if (localeString.isEmpty()) {
newPref.setTitle(getString(R.string.user_dict_settings_all_languages));
} else {
newPref.setTitle(
LocaleUtils.constructLocaleFromString(localeString).getDisplayName());
}
intent.putExtra("locale", localeString);
newPref.getExtras().putString("locale", localeString);
}
newPref.setIntent(intent);
newPref.setFragment(UserDictionarySettings.class.getName());
return newPref;
}
@Override
public void onResume() {
super.onResume();
createUserDictSettings(getPreferenceScreen());
}
}
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