/*
* Copyright (C) 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.settings.inputmethod;
import android.app.Activity;
import android.app.Fragment;
import android.app.admin.DevicePolicyManager;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.ServiceInfo;
import android.content.res.Configuration;
import android.database.ContentObserver;
import android.hardware.input.InputDeviceIdentifier;
import android.hardware.input.InputManager;
import android.hardware.input.KeyboardLayout;
import android.os.Bundle;
import android.os.Handler;
import android.os.LocaleList;
import android.provider.Settings;
import android.provider.Settings.System;
import android.speech.tts.TtsEngines;
import android.support.v14.preference.SwitchPreference;
import android.support.v7.preference.ListPreference;
import android.support.v7.preference.Preference;
import android.support.v7.preference.Preference.OnPreferenceClickListener;
import android.support.v7.preference.PreferenceCategory;
import android.support.v7.preference.PreferenceManager;
import android.support.v7.preference.PreferenceScreen;
import android.text.TextUtils;
import android.view.InputDevice;
import android.view.inputmethod.InputMethodInfo;
import android.view.inputmethod.InputMethodManager;
import android.view.inputmethod.InputMethodSubtype;
import android.view.textservice.SpellCheckerInfo;
import android.view.textservice.TextServicesManager;
import com.android.internal.app.LocaleHelper;
import com.android.internal.app.LocalePicker;
import com.android.internal.logging.MetricsProto.MetricsEvent;
import com.android.settings.R;
import com.android.settings.Settings.KeyboardLayoutPickerActivity;
import com.android.settings.SettingsActivity;
import com.android.settings.SettingsPreferenceFragment;
import com.android.settings.SubSettings;
import com.android.settings.UserDictionarySettings;
import com.android.settings.Utils;
import com.android.settings.VoiceInputOutputSettings;
import com.android.settings.dashboard.SummaryLoader;
import com.android.settings.search.BaseSearchIndexProvider;
import com.android.settings.search.Indexable;
import com.android.settings.search.SearchIndexableRaw;
import java.text.Collator;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.TreeSet;
public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
implements Preference.OnPreferenceChangeListener, InputManager.InputDeviceListener,
KeyboardLayoutDialogFragment.OnSetupKeyboardLayoutsListener, Indexable,
InputMethodPreference.OnSavePreferenceListener {
private static final String KEY_SPELL_CHECKERS = "spellcheckers_settings";
private static final String KEY_PHONE_LANGUAGE = "phone_language";
private static final String KEY_CURRENT_INPUT_METHOD = "current_input_method";
private static final String KEY_INPUT_METHOD_SELECTOR = "input_method_selector";
private static final String KEY_USER_DICTIONARY_SETTINGS = "key_user_dictionary_settings";
private static final String KEY_PREVIOUSLY_ENABLED_SUBTYPES = "previously_enabled_subtypes";
// false: on ICS or later
private static final boolean SHOW_INPUT_METHOD_SWITCHER_SETTINGS = false;
private int mDefaultInputMethodSelectorVisibility = 0;
private ListPreference mShowInputMethodSelectorPref;
private PreferenceCategory mKeyboardSettingsCategory;
private PreferenceCategory mHardKeyboardCategory;
private PreferenceCategory mGameControllerCategory;
private Preference mLanguagePref;
private final ArrayList<InputMethodPreference> mInputMethodPreferenceList = new ArrayList<>();
private final ArrayList<PreferenceScreen> mHardKeyboardPreferenceList = new ArrayList<>();
private InputManager mIm;
private InputMethodManager mImm;
private boolean mShowsOnlyFullImeAndKeyboardList;
private Handler mHandler;
private SettingsObserver mSettingsObserver;
private Intent mIntentWaitingForResult;
private InputMethodSettingValuesWrapper mInputMethodSettingValues;
private DevicePolicyManager mDpm;
@Override
protected int getMetricsCategory() {
return MetricsEvent.INPUTMETHOD_LANGUAGE;
}
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
addPreferencesFromResource(R.xml.language_settings);
final Activity activity = getActivity();
mImm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
mInputMethodSettingValues = InputMethodSettingValuesWrapper.getInstance(activity);
try {
mDefaultInputMethodSelectorVisibility = Integer.valueOf(
getString(R.string.input_method_selector_visibility_default_value));
} catch (NumberFormatException e) {
}
if (activity.getAssets().getLocales().length == 1) {
// No "Select language" pref if there's only one system locale available.
getPreferenceScreen().removePreference(findPreference(KEY_PHONE_LANGUAGE));
} else {
mLanguagePref = findPreference(KEY_PHONE_LANGUAGE);
}
if (SHOW_INPUT_METHOD_SWITCHER_SETTINGS) {
mShowInputMethodSelectorPref = (ListPreference)findPreference(
KEY_INPUT_METHOD_SELECTOR);
mShowInputMethodSelectorPref.setOnPreferenceChangeListener(this);
// TODO: Update current input method name on summary
updateInputMethodSelectorSummary(loadInputMethodSelectorVisibility());
}
new VoiceInputOutputSettings(this).onCreate();
// Get references to dynamically constructed categories.
mHardKeyboardCategory = (PreferenceCategory)findPreference("hard_keyboard");
mKeyboardSettingsCategory = (PreferenceCategory)findPreference(
"keyboard_settings_category");
mGameControllerCategory = (PreferenceCategory)findPreference(
"game_controller_settings_category");
final Intent startingIntent = activity.getIntent();
// Filter out irrelevant features if invoked from IME settings button.
mShowsOnlyFullImeAndKeyboardList = Settings.ACTION_INPUT_METHOD_SETTINGS.equals(
startingIntent.getAction());
if (mShowsOnlyFullImeAndKeyboardList) {
getPreferenceScreen().removeAll();
if (mHardKeyboardCategory != null) {
getPreferenceScreen().addPreference(mHardKeyboardCategory);
}
if (SHOW_INPUT_METHOD_SWITCHER_SETTINGS) {
getPreferenceScreen().addPreference(mShowInputMethodSelectorPref);
}
if (mKeyboardSettingsCategory != null) {
mKeyboardSettingsCategory.removeAll();
getPreferenceScreen().addPreference(mKeyboardSettingsCategory);
}
}
// Build hard keyboard and game controller preference categories.
mIm = (InputManager)activity.getSystemService(Context.INPUT_SERVICE);
updateInputDevices();
// Spell Checker
final Preference spellChecker = findPreference(KEY_SPELL_CHECKERS);
if (spellChecker != null) {
// Note: KEY_SPELL_CHECKERS preference is marked as persistent="false" in XML.
InputMethodAndSubtypeUtil.removeUnnecessaryNonPersistentPreference(spellChecker);
final Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setClass(activity, SubSettings.class);
intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT,
SpellCheckersSettings.class.getName());
intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT_TITLE_RESID,
R.string.spellcheckers_settings_title);
spellChecker.setIntent(intent);
}
mHandler = new Handler();
mSettingsObserver = new SettingsObserver(mHandler, activity);
mDpm = (DevicePolicyManager) (getActivity().
getSystemService(Context.DEVICE_POLICY_SERVICE));
// If we've launched from the keyboard layout notification, go ahead and just show the
// keyboard layout dialog.
final InputDeviceIdentifier identifier =
startingIntent.getParcelableExtra(Settings.EXTRA_INPUT_DEVICE_IDENTIFIER);
if (mShowsOnlyFullImeAndKeyboardList && identifier != null) {
showKeyboardLayoutDialog(identifier);
}
}
private void updateInputMethodSelectorSummary(int value) {
String[] inputMethodSelectorTitles = getResources().getStringArray(
R.array.input_method_selector_titles);
if (inputMethodSelectorTitles.length > value) {
mShowInputMethodSelectorPref.setSummary(inputMethodSelectorTitles[value]);
mShowInputMethodSelectorPref.setValue(String.valueOf(value));
}
}
private void updateUserDictionaryPreference(Preference userDictionaryPreference) {
final Activity activity = getActivity();
final TreeSet<String> localeSet = UserDictionaryList.getUserDictionaryLocalesSet(activity);
if (null == localeSet) {
// The locale list is null if and only if the user dictionary service is
// not present or disabled. In this case we need to remove the preference.
getPreferenceScreen().removePreference(userDictionaryPreference);
} else {
userDictionaryPreference.setOnPreferenceClickListener(
new OnPreferenceClickListener() {
@Override
public boolean onPreferenceClick(Preference arg0) {
// Redirect to UserDictionarySettings if the user needs only one
// language.
final Bundle extras = new Bundle();
final Class<? extends Fragment> targetFragment;
if (localeSet.size() <= 1) {
if (!localeSet.isEmpty()) {
// If the size of localeList is 0, we don't set the locale
// parameter in the extras. This will be interpreted by the
// UserDictionarySettings class as meaning
// "the current locale". Note that with the current code for
// UserDictionaryList#getUserDictionaryLocalesSet()
// the locale list always has at least one element, since it
// always includes the current locale explicitly.
// @see UserDictionaryList.getUserDictionaryLocalesSet().
extras.putString("locale", localeSet.first());
}
targetFragment = UserDictionarySettings.class;
} else {
targetFragment = UserDictionaryList.class;
}
startFragment(InputMethodAndLanguageSettings.this,
targetFragment.getCanonicalName(), -1, -1, extras);
return true;
}
});
}
}
@Override
public void onResume() {
super.onResume();
mSettingsObserver.resume();
mIm.registerInputDeviceListener(this, null);
final Preference spellChecker = findPreference(KEY_SPELL_CHECKERS);
if (spellChecker != null) {
final TextServicesManager tsm = (TextServicesManager) getSystemService(
Context.TEXT_SERVICES_MANAGER_SERVICE);
if (!tsm.isSpellCheckerEnabled()) {
spellChecker.setSummary(R.string.switch_off_text);
} else {
final SpellCheckerInfo sci = tsm.getCurrentSpellChecker();
if (sci != null) {
spellChecker.setSummary(sci.loadLabel(getPackageManager()));
} else {
spellChecker.setSummary(R.string.spell_checker_not_selected);
}
}
}
if (!mShowsOnlyFullImeAndKeyboardList) {
if (mLanguagePref != null) {
String localeNames = getLocaleNames(getActivity());
mLanguagePref.setSummary(localeNames);
}
updateUserDictionaryPreference(findPreference(KEY_USER_DICTIONARY_SETTINGS));
if (SHOW_INPUT_METHOD_SWITCHER_SETTINGS) {
mShowInputMethodSelectorPref.setOnPreferenceChangeListener(this);
}
}
updateInputDevices();
// Refresh internal states in mInputMethodSettingValues to keep the latest
// "InputMethodInfo"s and "InputMethodSubtype"s
mInputMethodSettingValues.refreshAllInputMethodAndSubtypes();
updateInputMethodPreferenceViews();
}
@Override
public void onPause() {
super.onPause();
mIm.unregisterInputDeviceListener(this);
mSettingsObserver.pause();
if (SHOW_INPUT_METHOD_SWITCHER_SETTINGS) {
mShowInputMethodSelectorPref.setOnPreferenceChangeListener(null);
}
// TODO: Consolidate the logic to InputMethodSettingsWrapper
InputMethodAndSubtypeUtil.saveInputMethodSubtypeList(
this, getContentResolver(), mInputMethodSettingValues.getInputMethodList(),
!mHardKeyboardPreferenceList.isEmpty());
}
@Override
public void onInputDeviceAdded(int deviceId) {
updateInputDevices();
}
@Override
public void onInputDeviceChanged(int deviceId) {
updateInputDevices();
}
@Override
public void onInputDeviceRemoved(int deviceId) {
updateInputDevices();
}
@Override
public boolean onPreferenceTreeClick(Preference preference) {
// Input Method stuff
if (Utils.isMonkeyRunning()) {
return false;
}
if (preference instanceof PreferenceScreen) {
if (preference.getFragment() != null) {
// Fragment will be handled correctly by the super class.
} else if (KEY_CURRENT_INPUT_METHOD.equals(preference.getKey())) {
final InputMethodManager imm = (InputMethodManager)
getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showInputMethodPicker(false /* showAuxiliarySubtypes */);
}
} else if (preference instanceof SwitchPreference) {
final SwitchPreference pref = (SwitchPreference) preference;
if (pref == mGameControllerCategory.findPreference("vibrate_input_devices")) {
System.putInt(getContentResolver(), Settings.System.VIBRATE_INPUT_DEVICES,
pref.isChecked() ? 1 : 0);
return true;
}
}
return super.onPreferenceTreeClick(preference);
}
private static String getLocaleNames(Context context) {
final LocaleList locales = LocalePicker.getLocales();
final Locale displayLocale = Locale.getDefault();
return LocaleHelper.toSentenceCase(
LocaleHelper.getDisplayLocaleList(
locales, displayLocale, 2 /* Show up to two locales from the list */),
displayLocale);
}
private void saveInputMethodSelectorVisibility(String value) {
try {
int intValue = Integer.valueOf(value);
Settings.Secure.putInt(getContentResolver(),
Settings.Secure.INPUT_METHOD_SELECTOR_VISIBILITY, intValue);
updateInputMethodSelectorSummary(intValue);
} catch(NumberFormatException e) {
}
}
private int loadInputMethodSelectorVisibility() {
return Settings.Secure.getInt(getContentResolver(),
Settings.Secure.INPUT_METHOD_SELECTOR_VISIBILITY,
mDefaultInputMethodSelectorVisibility);
}
@Override
public boolean onPreferenceChange(Preference preference, Object value) {
if (SHOW_INPUT_METHOD_SWITCHER_SETTINGS) {
if (preference == mShowInputMethodSelectorPref) {
if (value instanceof String) {
saveInputMethodSelectorVisibility((String)value);
}
}
}
return false;
}
private void updateInputMethodPreferenceViews() {
if (mKeyboardSettingsCategory == null) {
return;
}
synchronized (mInputMethodPreferenceList) {
// Clear existing "InputMethodPreference"s
for (final InputMethodPreference pref : mInputMethodPreferenceList) {
mKeyboardSettingsCategory.removePreference(pref);
}
mInputMethodPreferenceList.clear();
List<String> permittedList = mDpm.getPermittedInputMethodsForCurrentUser();
final Context context = getPrefContext();
final List<InputMethodInfo> imis = mShowsOnlyFullImeAndKeyboardList
? mInputMethodSettingValues.getInputMethodList()
: mImm.getEnabledInputMethodList();
final int N = (imis == null ? 0 : imis.size());
for (int i = 0; i < N; ++i) {
final InputMethodInfo imi = imis.get(i);
final boolean isAllowedByOrganization = permittedList == null
|| permittedList.contains(imi.getPackageName());
final InputMethodPreference pref = new InputMethodPreference(
context, imi, mShowsOnlyFullImeAndKeyboardList /* hasSwitch */,
isAllowedByOrganization, this);
mInputMethodPreferenceList.add(pref);
}
final Collator collator = Collator.getInstance();
Collections.sort(mInputMethodPreferenceList, new Comparator<InputMethodPreference>() {
@Override
public int compare(InputMethodPreference lhs, InputMethodPreference rhs) {
return lhs.compareTo(rhs, collator);
}
});
for (int i = 0; i < N; ++i) {
final InputMethodPreference pref = mInputMethodPreferenceList.get(i);
mKeyboardSettingsCategory.addPreference(pref);
InputMethodAndSubtypeUtil.removeUnnecessaryNonPersistentPreference(pref);
pref.updatePreferenceViews();
}
}
updateCurrentImeName();
// TODO: Consolidate the logic with InputMethodSettingsWrapper
// CAVEAT: The preference class here does not know about the default value - that is
// managed by the Input Method Manager Service, so in this case it could save the wrong
// value. Hence we must update the checkboxes here.
InputMethodAndSubtypeUtil.loadInputMethodSubtypeList(
this, getContentResolver(),
mInputMethodSettingValues.getInputMethodList(), null);
}
@Override
public void onSaveInputMethodPreference(final InputMethodPreference pref) {
final InputMethodInfo imi = pref.getInputMethodInfo();
if (!pref.isChecked()) {
// An IME is being disabled. Save enabled subtypes of the IME to shared preference to be
// able to re-enable these subtypes when the IME gets re-enabled.
saveEnabledSubtypesOf(imi);
}
final boolean hasHardwareKeyboard = getResources().getConfiguration().keyboard
== Configuration.KEYBOARD_QWERTY;
InputMethodAndSubtypeUtil.saveInputMethodSubtypeList(this, getContentResolver(),
mImm.getInputMethodList(), hasHardwareKeyboard);
// Update input method settings and preference list.
mInputMethodSettingValues.refreshAllInputMethodAndSubtypes();
if (pref.isChecked()) {
// An IME is being enabled. Load the previously enabled subtypes from shared preference
// and enable these subtypes.
restorePreviouslyEnabledSubtypesOf(imi);
}
for (final InputMethodPreference p : mInputMethodPreferenceList) {
p.updatePreferenceViews();
}
}
private void saveEnabledSubtypesOf(final InputMethodInfo imi) {
final HashSet<String> enabledSubtypeIdSet = new HashSet<>();
final List<InputMethodSubtype> enabledSubtypes = mImm.getEnabledInputMethodSubtypeList(
imi, true /* allowsImplicitlySelectedSubtypes */);
for (final InputMethodSubtype subtype : enabledSubtypes) {
final String subtypeId = Integer.toString(subtype.hashCode());
enabledSubtypeIdSet.add(subtypeId);
}
final HashMap<String, HashSet<String>> imeToEnabledSubtypeIdsMap =
loadPreviouslyEnabledSubtypeIdsMap();
final String imiId = imi.getId();
imeToEnabledSubtypeIdsMap.put(imiId, enabledSubtypeIdSet);
savePreviouslyEnabledSubtypeIdsMap(imeToEnabledSubtypeIdsMap);
}
private void restorePreviouslyEnabledSubtypesOf(final InputMethodInfo imi) {
final HashMap<String, HashSet<String>> imeToEnabledSubtypeIdsMap =
loadPreviouslyEnabledSubtypeIdsMap();
final String imiId = imi.getId();
final HashSet<String> enabledSubtypeIdSet = imeToEnabledSubtypeIdsMap.remove(imiId);
if (enabledSubtypeIdSet == null) {
return;
}
savePreviouslyEnabledSubtypeIdsMap(imeToEnabledSubtypeIdsMap);
InputMethodAndSubtypeUtil.enableInputMethodSubtypesOf(
getContentResolver(), imiId, enabledSubtypeIdSet);
}
private HashMap<String, HashSet<String>> loadPreviouslyEnabledSubtypeIdsMap() {
final Context context = getActivity();
final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
final String imesAndSubtypesString = prefs.getString(KEY_PREVIOUSLY_ENABLED_SUBTYPES, null);
return InputMethodAndSubtypeUtil.parseInputMethodsAndSubtypesString(imesAndSubtypesString);
}
private void savePreviouslyEnabledSubtypeIdsMap(
final HashMap<String, HashSet<String>> subtypesMap) {
final Context context = getActivity();
final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
final String imesAndSubtypesString = InputMethodAndSubtypeUtil
.buildInputMethodsAndSubtypesString(subtypesMap);
prefs.edit().putString(KEY_PREVIOUSLY_ENABLED_SUBTYPES, imesAndSubtypesString).apply();
}
private void updateCurrentImeName() {
final Context context = getActivity();
if (context == null || mImm == null) return;
final Preference curPref = getPreferenceScreen().findPreference(KEY_CURRENT_INPUT_METHOD);
if (curPref != null) {
final CharSequence curIme =
mInputMethodSettingValues.getCurrentInputMethodName(context);
if (!TextUtils.isEmpty(curIme)) {
synchronized (this) {
curPref.setSummary(curIme);
}
}
}
}
private void updateInputDevices() {
updateHardKeyboards();
updateGameControllers();
}
private void updateHardKeyboards() {
if (mHardKeyboardCategory == null) {
return;
}
mHardKeyboardPreferenceList.clear();
final int[] devices = InputDevice.getDeviceIds();
for (int i = 0; i < devices.length; i++) {
InputDevice device = InputDevice.getDevice(devices[i]);
if (device != null
&& !device.isVirtual()
&& device.isFullKeyboard()) {
final InputDeviceIdentifier identifier = device.getIdentifier();
final String keyboardLayoutDescriptor =
mIm.getCurrentKeyboardLayoutForInputDevice(identifier);
final KeyboardLayout keyboardLayout = keyboardLayoutDescriptor != null ?
mIm.getKeyboardLayout(keyboardLayoutDescriptor) : null;
final PreferenceScreen pref = new PreferenceScreen(getPrefContext(), null);
pref.setTitle(device.getName());
if (keyboardLayout != null) {
pref.setSummary(keyboardLayout.toString());
} else {
pref.setSummary(R.string.keyboard_layout_default_label);
}
pref.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
@Override
public boolean onPreferenceClick(Preference preference) {
showKeyboardLayoutDialog(identifier);
return true;
}
});
mHardKeyboardPreferenceList.add(pref);
}
}
if (!mHardKeyboardPreferenceList.isEmpty()) {
for (int i = mHardKeyboardCategory.getPreferenceCount(); i-- > 0; ) {
final Preference pref = mHardKeyboardCategory.getPreference(i);
if (pref.getOrder() < 1000) {
mHardKeyboardCategory.removePreference(pref);
}
}
Collections.sort(mHardKeyboardPreferenceList);
final int count = mHardKeyboardPreferenceList.size();
for (int i = 0; i < count; i++) {
final Preference pref = mHardKeyboardPreferenceList.get(i);
pref.setOrder(i);
mHardKeyboardCategory.addPreference(pref);
}
getPreferenceScreen().addPreference(mHardKeyboardCategory);
} else {
getPreferenceScreen().removePreference(mHardKeyboardCategory);
}
}
private void showKeyboardLayoutDialog(InputDeviceIdentifier inputDeviceIdentifier) {
KeyboardLayoutDialogFragment fragment = (KeyboardLayoutDialogFragment)
getFragmentManager().findFragmentByTag("keyboardLayout");
if (fragment == null) {
fragment = new KeyboardLayoutDialogFragment(inputDeviceIdentifier);
fragment.setTargetFragment(this, 0);
fragment.show(getActivity().getFragmentManager(), "keyboardLayout");
}
}
@Override
public void onSetupKeyboardLayouts(InputDeviceIdentifier inputDeviceIdentifier) {
final Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setClass(getActivity(), KeyboardLayoutPickerActivity.class);
intent.putExtra(KeyboardLayoutPickerFragment.EXTRA_INPUT_DEVICE_IDENTIFIER,
inputDeviceIdentifier);
mIntentWaitingForResult = intent;
startActivityForResult(intent, 0);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (mIntentWaitingForResult != null) {
InputDeviceIdentifier inputDeviceIdentifier = mIntentWaitingForResult
.getParcelableExtra(KeyboardLayoutPickerFragment.EXTRA_INPUT_DEVICE_IDENTIFIER);
mIntentWaitingForResult = null;
showKeyboardLayoutDialog(inputDeviceIdentifier);
}
}
private void updateGameControllers() {
if (haveInputDeviceWithVibrator()) {
getPreferenceScreen().addPreference(mGameControllerCategory);
SwitchPreference pref = (SwitchPreference)
mGameControllerCategory.findPreference("vibrate_input_devices");
pref.setChecked(System.getInt(getContentResolver(),
Settings.System.VIBRATE_INPUT_DEVICES, 1) > 0);
} else {
getPreferenceScreen().removePreference(mGameControllerCategory);
}
}
private static boolean haveInputDeviceWithVibrator() {
final int[] devices = InputDevice.getDeviceIds();
for (int i = 0; i < devices.length; i++) {
InputDevice device = InputDevice.getDevice(devices[i]);
if (device != null && !device.isVirtual() && device.getVibrator().hasVibrator()) {
return true;
}
}
return false;
}
private class SettingsObserver extends ContentObserver {
private Context mContext;
public SettingsObserver(Handler handler, Context context) {
super(handler);
mContext = context;
}
@Override public void onChange(boolean selfChange) {
updateCurrentImeName();
}
public void resume() {
final ContentResolver cr = mContext.getContentResolver();
cr.registerContentObserver(
Settings.Secure.getUriFor(Settings.Secure.DEFAULT_INPUT_METHOD), false, this);
cr.registerContentObserver(Settings.Secure.getUriFor(
Settings.Secure.SELECTED_INPUT_METHOD_SUBTYPE), false, this);
}
public void pause() {
mContext.getContentResolver().unregisterContentObserver(this);
}
}
private static class SummaryProvider implements SummaryLoader.SummaryProvider {
private final Context mContext;
private final SummaryLoader mSummaryLoader;
public SummaryProvider(Context context, SummaryLoader summaryLoader) {
mContext = context;
mSummaryLoader = summaryLoader;
}
@Override
public void setListening(boolean listening) {
if (listening) {
String localeNames = getLocaleNames(mContext);
mSummaryLoader.setSummary(this, localeNames);
}
}
}
public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY
= new SummaryLoader.SummaryProviderFactory() {
@Override
public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity,
SummaryLoader summaryLoader) {
return new SummaryProvider(activity, summaryLoader);
}
};
public static final Indexable.SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
new BaseSearchIndexProvider() {
@Override
public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) {
List<SearchIndexableRaw> indexables = new ArrayList<>();
final String screenTitle = context.getString(R.string.language_keyboard_settings_title);
// Locale picker.
if (context.getAssets().getLocales().length > 1) {
String localeNames = getLocaleNames(context);
SearchIndexableRaw indexable = new SearchIndexableRaw(context);
indexable.key = KEY_PHONE_LANGUAGE;
indexable.title = context.getString(R.string.phone_language);
indexable.summaryOn = localeNames;
indexable.summaryOff = localeNames;
indexable.screenTitle = screenTitle;
indexables.add(indexable);
}
// Spell checker.
SearchIndexableRaw indexable = new SearchIndexableRaw(context);
indexable.key = KEY_SPELL_CHECKERS;
indexable.title = context.getString(R.string.spellcheckers_settings_title);
indexable.screenTitle = screenTitle;
indexable.keywords = context.getString(R.string.keywords_spell_checker);
indexables.add(indexable);
// User dictionary.
if (UserDictionaryList.getUserDictionaryLocalesSet(context) != null) {
indexable = new SearchIndexableRaw(context);
indexable.key = "user_dict_settings";
indexable.title = context.getString(R.string.user_dict_settings_title);
indexable.screenTitle = screenTitle;
indexables.add(indexable);
}
// Keyboard settings.
indexable = new SearchIndexableRaw(context);
indexable.key = "keyboard_settings";
indexable.title = context.getString(R.string.keyboard_settings_category);
indexable.screenTitle = screenTitle;
indexable.keywords = context.getString(R.string.keywords_keyboard_and_ime);
indexables.add(indexable);
InputMethodSettingValuesWrapper immValues = InputMethodSettingValuesWrapper
.getInstance(context);
immValues.refreshAllInputMethodAndSubtypes();
// Current IME.
String currImeName = immValues.getCurrentInputMethodName(context).toString();
indexable = new SearchIndexableRaw(context);
indexable.key = KEY_CURRENT_INPUT_METHOD;
indexable.title = context.getString(R.string.current_input_method);
indexable.summaryOn = currImeName;
indexable.summaryOff = currImeName;
indexable.screenTitle = screenTitle;
indexables.add(indexable);
InputMethodManager inputMethodManager = (InputMethodManager) context.getSystemService(
Context.INPUT_METHOD_SERVICE);
// All other IMEs.
List<InputMethodInfo> inputMethods = immValues.getInputMethodList();
final int inputMethodCount = (inputMethods == null ? 0 : inputMethods.size());
for (int i = 0; i < inputMethodCount; ++i) {
InputMethodInfo inputMethod = inputMethods.get(i);
List<InputMethodSubtype> subtypes = inputMethodManager
.getEnabledInputMethodSubtypeList(inputMethod, true);
String summary = InputMethodAndSubtypeUtil.getSubtypeLocaleNameListAsSentence(
subtypes, context, inputMethod);
ServiceInfo serviceInfo = inputMethod.getServiceInfo();
ComponentName componentName = new ComponentName(serviceInfo.packageName,
serviceInfo.name);
indexable = new SearchIndexableRaw(context);
indexable.key = componentName.flattenToString();
indexable.title = inputMethod.loadLabel(context.getPackageManager()).toString();
indexable.summaryOn = summary;
indexable.summaryOff = summary;
indexable.screenTitle = screenTitle;
indexables.add(indexable);
}
// Hard keyboards
InputManager inputManager = (InputManager) context.getSystemService(
Context.INPUT_SERVICE);
boolean hasHardKeyboards = false;
final int[] devices = InputDevice.getDeviceIds();
for (int i = 0; i < devices.length; i++) {
InputDevice device = InputDevice.getDevice(devices[i]);
if (device == null || device.isVirtual() || !device.isFullKeyboard()) {
continue;
}
hasHardKeyboards = true;
InputDeviceIdentifier identifier = device.getIdentifier();
String keyboardLayoutDescriptor =
inputManager.getCurrentKeyboardLayoutForInputDevice(identifier);
KeyboardLayout keyboardLayout = keyboardLayoutDescriptor != null ?
inputManager.getKeyboardLayout(keyboardLayoutDescriptor) : null;
String summary;
if (keyboardLayout != null) {
summary = keyboardLayout.toString();
} else {
summary = context.getString(R.string.keyboard_layout_default_label);
}
indexable = new SearchIndexableRaw(context);
indexable.key = device.getName();
indexable.title = device.getName();
indexable.summaryOn = summary;
indexable.summaryOff = summary;
indexable.screenTitle = screenTitle;
indexables.add(indexable);
}
if (hasHardKeyboards) {
// Hard keyboard category.
indexable = new SearchIndexableRaw(context);
indexable.key = "builtin_keyboard_settings";
indexable.title = context.getString(
R.string.builtin_keyboard_settings_title);
indexable.screenTitle = screenTitle;
indexables.add(indexable);
}
// Text-to-speech.
TtsEngines ttsEngines = new TtsEngines(context);
if (!ttsEngines.getEngines().isEmpty()) {
indexable = new SearchIndexableRaw(context);
indexable.key = "tts_settings";
indexable.title = context.getString(R.string.tts_settings_title);
indexable.screenTitle = screenTitle;
indexable.keywords = context.getString(R.string.keywords_text_to_speech_output);
indexables.add(indexable);
}
// Pointer settings.
indexable = new SearchIndexableRaw(context);
indexable.key = "pointer_settings_category";
indexable.title = context.getString(R.string.pointer_settings_category);
indexable.screenTitle = screenTitle;
indexables.add(indexable);
indexable = new SearchIndexableRaw(context);
indexable.key = "pointer_speed";
indexable.title = context.getString(R.string.pointer_speed);
indexable.screenTitle = screenTitle;
indexables.add(indexable);
// Game controllers.
if (haveInputDeviceWithVibrator()) {
indexable = new SearchIndexableRaw(context);
indexable.key = "vibrate_input_devices";
indexable.title = context.getString(R.string.vibrate_input_devices);
indexable.summaryOn = context.getString(R.string.vibrate_input_devices_summary);
indexable.summaryOff = context.getString(R.string.vibrate_input_devices_summary);
indexable.screenTitle = screenTitle;
indexables.add(indexable);
}
return indexables;
}
};
}