/*
* 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 com.android.settings.R;
import com.android.settings.Settings.KeyboardLayoutPickerActivity;
import com.android.settings.Settings.SpellCheckersSettingsActivity;
import com.android.settings.SettingsPreferenceFragment;
import com.android.settings.Utils;
import com.android.settings.VoiceInputOutputSettings;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.database.ContentObserver;
import android.hardware.input.InputManager;
import android.hardware.input.KeyboardLayout;
import android.os.Bundle;
import android.os.Handler;
import android.preference.CheckBoxPreference;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.PreferenceCategory;
import android.preference.PreferenceScreen;
import android.provider.Settings;
import android.provider.Settings.System;
import android.text.TextUtils;
import android.view.InputDevice;
import android.view.inputmethod.InputMethodInfo;
import android.view.inputmethod.InputMethodManager;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.TreeSet;
public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
implements Preference.OnPreferenceChangeListener, InputManager.InputDeviceListener,
KeyboardLayoutDialogFragment.OnSetupKeyboardLayoutsListener {
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";
// false: on ICS or later
private static final boolean SHOW_INPUT_METHOD_SWITCHER_SETTINGS = false;
private static final String[] sSystemSettingNames = {
System.TEXT_AUTO_REPLACE, System.TEXT_AUTO_CAPS, System.TEXT_AUTO_PUNCTUATE,
};
private static final String[] sHardKeyboardKeys = {
"auto_replace", "auto_caps", "auto_punctuate",
};
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<InputMethodPreference>();
private final ArrayList<PreferenceScreen> mHardKeyboardPreferenceList =
new ArrayList<PreferenceScreen>();
private InputManager mIm;
private InputMethodManager mImm;
private List<InputMethodInfo> mImis;
private boolean mIsOnlyImeSettings;
private Handler mHandler;
@SuppressWarnings("unused")
private SettingsObserver mSettingsObserver;
private Intent mIntentWaitingForResult;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
addPreferencesFromResource(R.xml.language_settings);
try {
mDefaultInputMethodSelectorVisibility = Integer.valueOf(
getString(R.string.input_method_selector_visibility_default_value));
} catch (NumberFormatException e) {
}
if (getActivity().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");
// Filter out irrelevant features if invoked from IME settings button.
mIsOnlyImeSettings = Settings.ACTION_INPUT_METHOD_SETTINGS.equals(
getActivity().getIntent().getAction());
getActivity().getIntent().setAction(null);
if (mIsOnlyImeSettings) {
getPreferenceScreen().removeAll();
getPreferenceScreen().addPreference(mHardKeyboardCategory);
if (SHOW_INPUT_METHOD_SWITCHER_SETTINGS) {
getPreferenceScreen().addPreference(mShowInputMethodSelectorPref);
}
getPreferenceScreen().addPreference(mKeyboardSettingsCategory);
}
// Build IME preference category.
mImm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
mImis = mImm.getInputMethodList();
mKeyboardSettingsCategory.removeAll();
if (!mIsOnlyImeSettings) {
final PreferenceScreen currentIme = new PreferenceScreen(getActivity(), null);
currentIme.setKey(KEY_CURRENT_INPUT_METHOD);
currentIme.setTitle(getResources().getString(R.string.current_input_method));
mKeyboardSettingsCategory.addPreference(currentIme);
}
mInputMethodPreferenceList.clear();
final int N = (mImis == null ? 0 : mImis.size());
for (int i = 0; i < N; ++i) {
final InputMethodInfo imi = mImis.get(i);
final InputMethodPreference pref = getInputMethodPreference(imi, N);
mInputMethodPreferenceList.add(pref);
}
if (!mInputMethodPreferenceList.isEmpty()) {
Collections.sort(mInputMethodPreferenceList);
for (int i = 0; i < N; ++i) {
mKeyboardSettingsCategory.addPreference(mInputMethodPreferenceList.get(i));
}
}
// Build hard keyboard and game controller preference categories.
mIm = (InputManager)getActivity().getSystemService(Context.INPUT_SERVICE);
updateInputDevices();
// Spell Checker
final Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setClass(getActivity(), SpellCheckersSettingsActivity.class);
final SpellCheckersPreference scp = ((SpellCheckersPreference)findPreference(
"spellcheckers_settings"));
if (scp != null) {
scp.setFragmentIntent(this, intent);
}
mHandler = new Handler();
mSettingsObserver = new SettingsObserver(mHandler, getActivity());
}
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> localeList = UserDictionaryList.getUserDictionaryLocalesSet(activity);
if (null == localeList) {
// 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 if (localeList.size() <= 1) {
final Intent intent =
new Intent(UserDictionaryList.USER_DICTIONARY_SETTINGS_INTENT_ACTION);
userDictionaryPreference.setTitle(R.string.user_dict_single_settings_title);
userDictionaryPreference.setIntent(intent);
userDictionaryPreference.setFragment(
com.android.settings.UserDictionarySettings.class.getName());
// 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().
if (localeList.size() == 1) {
final String locale = (String)localeList.toArray()[0];
userDictionaryPreference.getExtras().putString("locale", locale);
}
} else {
userDictionaryPreference.setTitle(R.string.user_dict_multiple_settings_title);
userDictionaryPreference.setFragment(UserDictionaryList.class.getName());
}
}
@Override
public void onResume() {
super.onResume();
mSettingsObserver.resume();
mIm.registerInputDeviceListener(this, null);
if (!mIsOnlyImeSettings) {
if (mLanguagePref != null) {
Configuration conf = getResources().getConfiguration();
String language = conf.locale.getLanguage();
String localeString;
// TODO: This is not an accurate way to display the locale, as it is
// just working around the fact that we support limited dialects
// and want to pretend that the language is valid for all locales.
// We need a way to support languages that aren't tied to a particular
// locale instead of hiding the locale qualifier.
if (hasOnlyOneLanguageInstance(language,
Resources.getSystem().getAssets().getLocales())) {
localeString = conf.locale.getDisplayLanguage(conf.locale);
} else {
localeString = conf.locale.getDisplayName(conf.locale);
}
if (localeString.length() > 1) {
localeString = Character.toUpperCase(localeString.charAt(0))
+ localeString.substring(1);
mLanguagePref.setSummary(localeString);
}
}
updateUserDictionaryPreference(findPreference(KEY_USER_DICTIONARY_SETTINGS));
if (SHOW_INPUT_METHOD_SWITCHER_SETTINGS) {
mShowInputMethodSelectorPref.setOnPreferenceChangeListener(this);
}
}
// Hard keyboard
if (!mHardKeyboardPreferenceList.isEmpty()) {
for (int i = 0; i < sHardKeyboardKeys.length; ++i) {
CheckBoxPreference chkPref = (CheckBoxPreference)
mHardKeyboardCategory.findPreference(sHardKeyboardKeys[i]);
chkPref.setChecked(
System.getInt(getContentResolver(), sSystemSettingNames[i], 1) > 0);
}
}
updateInputDevices();
// IME
InputMethodAndSubtypeUtil.loadInputMethodSubtypeList(
this, getContentResolver(), mImis, null);
updateActiveInputMethodsSummary();
}
@Override
public void onPause() {
super.onPause();
mIm.unregisterInputDeviceListener(this);
mSettingsObserver.pause();
if (SHOW_INPUT_METHOD_SWITCHER_SETTINGS) {
mShowInputMethodSelectorPref.setOnPreferenceChangeListener(null);
}
InputMethodAndSubtypeUtil.saveInputMethodSubtypeList(
this, getContentResolver(), mImis, !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(PreferenceScreen preferenceScreen, 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();
}
} else if (preference instanceof CheckBoxPreference) {
final CheckBoxPreference chkPref = (CheckBoxPreference) preference;
if (!mHardKeyboardPreferenceList.isEmpty()) {
for (int i = 0; i < sHardKeyboardKeys.length; ++i) {
if (chkPref == mHardKeyboardCategory.findPreference(sHardKeyboardKeys[i])) {
System.putInt(getContentResolver(), sSystemSettingNames[i],
chkPref.isChecked() ? 1 : 0);
return true;
}
}
}
if (chkPref == mGameControllerCategory.findPreference("vibrate_input_devices")) {
System.putInt(getContentResolver(), Settings.System.VIBRATE_INPUT_DEVICES,
chkPref.isChecked() ? 1 : 0);
return true;
}
}
return super.onPreferenceTreeClick(preferenceScreen, preference);
}
private boolean hasOnlyOneLanguageInstance(String languageCode, String[] locales) {
int count = 0;
for (String localeCode : locales) {
if (localeCode.length() > 2
&& localeCode.startsWith(languageCode)) {
count++;
if (count > 1) {
return false;
}
}
}
return count == 1;
}
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 updateActiveInputMethodsSummary() {
for (Preference pref : mInputMethodPreferenceList) {
if (pref instanceof InputMethodPreference) {
((InputMethodPreference)pref).updateSummary();
}
}
updateCurrentImeName();
}
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 = InputMethodAndSubtypeUtil.getCurrentInputMethodName(
context, getContentResolver(), mImm, mImis, getPackageManager());
if (!TextUtils.isEmpty(curIme)) {
synchronized(this) {
curPref.setSummary(curIme);
}
}
}
}
private InputMethodPreference getInputMethodPreference(InputMethodInfo imi, int imiSize) {
final PackageManager pm = getPackageManager();
final CharSequence label = imi.loadLabel(pm);
// IME settings
final Intent intent;
final String settingsActivity = imi.getSettingsActivity();
if (!TextUtils.isEmpty(settingsActivity)) {
intent = new Intent(Intent.ACTION_MAIN);
intent.setClassName(imi.getPackageName(), settingsActivity);
} else {
intent = null;
}
// Add a check box for enabling/disabling IME
InputMethodPreference pref = new InputMethodPreference(this, intent, mImm, imi, imiSize);
pref.setKey(imi.getId());
pref.setTitle(label);
return pref;
}
private void updateInputDevices() {
updateHardKeyboards();
updateGameControllers();
}
private void updateHardKeyboards() {
mHardKeyboardPreferenceList.clear();
if (getResources().getConfiguration().keyboard == Configuration.KEYBOARD_QWERTY) {
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 String inputDeviceDescriptor = device.getDescriptor();
final String keyboardLayoutDescriptor =
mIm.getCurrentKeyboardLayoutForInputDevice(inputDeviceDescriptor);
final KeyboardLayout keyboardLayout = keyboardLayoutDescriptor != null ?
mIm.getKeyboardLayout(keyboardLayoutDescriptor) : null;
final PreferenceScreen pref = new PreferenceScreen(getActivity(), 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(inputDeviceDescriptor);
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(String inputDeviceDescriptor) {
KeyboardLayoutDialogFragment fragment =
new KeyboardLayoutDialogFragment(inputDeviceDescriptor);
fragment.setTargetFragment(this, 0);
fragment.show(getActivity().getFragmentManager(), "keyboardLayout");
}
@Override
public void onSetupKeyboardLayouts(String inputDeviceDescriptor) {
final Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setClass(getActivity(), KeyboardLayoutPickerActivity.class);
intent.putExtra(KeyboardLayoutPickerFragment.EXTRA_INPUT_DEVICE_DESCRIPTOR,
inputDeviceDescriptor);
mIntentWaitingForResult = intent;
startActivityForResult(intent, 0);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (mIntentWaitingForResult != null) {
String inputDeviceDescriptor = mIntentWaitingForResult.getStringExtra(
KeyboardLayoutPickerFragment.EXTRA_INPUT_DEVICE_DESCRIPTOR);
mIntentWaitingForResult = null;
showKeyboardLayoutDialog(inputDeviceDescriptor);
}
}
private void updateGameControllers() {
if (haveInputDeviceWithVibrator()) {
getPreferenceScreen().addPreference(mGameControllerCategory);
CheckBoxPreference chkPref = (CheckBoxPreference)
mGameControllerCategory.findPreference("vibrate_input_devices");
chkPref.setChecked(System.getInt(getContentResolver(),
Settings.System.VIBRATE_INPUT_DEVICES, 1) > 0);
} else {
getPreferenceScreen().removePreference(mGameControllerCategory);
}
}
private 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);
}
}
}