MultiLingualSettingsFragment.java revision a715d7f6fd3b29e660d78f83815ebe75837f1436 
1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.inputmethod.latin.settings;
18
19import android.content.Context;
20import android.content.SharedPreferences;
21import android.content.res.Resources;
22import android.os.Bundle;
23import android.preference.PreferenceScreen;
24import android.text.TextUtils;
25import android.view.inputmethod.InputMethodSubtype;
26
27import com.android.inputmethod.latin.R;
28import com.android.inputmethod.latin.utils.AdditionalSubtypeUtils;
29import com.android.inputmethod.latin.utils.SubtypeLocaleUtils;
30
31import java.util.ArrayList;
32
33/**
34 * "Multi lingual options" settings sub screen.
35 *
36 * This settings sub screen handles the following input preferences.
37 * - Language switch key
38 * - Switch to other input methods
39 * - Custom input styles
40 */
41public final class MultiLingualSettingsFragment extends SubScreenFragment {
42    @Override
43    public void onCreate(final Bundle icicle) {
44        super.onCreate(icicle);
45        addPreferencesFromResource(R.xml.prefs_screen_multi_lingual);
46
47        final Context context = getActivity();
48
49        // When we are called from the Settings application but we are not already running, some
50        // singleton and utility classes may not have been initialized.  We have to call
51        // initialization method of these classes here. See {@link LatinIME#onCreate()}.
52        SubtypeLocaleUtils.init(context);
53
54        if (!Settings.ENABLE_SHOW_LANGUAGE_SWITCH_KEY_SETTINGS) {
55            removePreference(Settings.PREF_SHOW_LANGUAGE_SWITCH_KEY);
56            removePreference(Settings.PREF_INCLUDE_OTHER_IMES_IN_LANGUAGE_SWITCH_LIST);
57        }
58    }
59
60    @Override
61    public void onResume() {
62        super.onResume();
63        updateCustomInputStylesSummary();
64    }
65
66    private void updateCustomInputStylesSummary() {
67        final SharedPreferences prefs = getSharedPreferences();
68        final Resources res = getResources();
69        final PreferenceScreen customInputStyles =
70                (PreferenceScreen)findPreference(Settings.PREF_CUSTOM_INPUT_STYLES);
71        final String prefSubtype = Settings.readPrefAdditionalSubtypes(prefs, res);
72        final InputMethodSubtype[] subtypes =
73                AdditionalSubtypeUtils.createAdditionalSubtypesArray(prefSubtype);
74        final ArrayList<String> subtypeNames = new ArrayList<>();
75        for (final InputMethodSubtype subtype : subtypes) {
76            subtypeNames.add(SubtypeLocaleUtils.getSubtypeDisplayNameInSystemLocale(subtype));
77        }
78        // TODO: A delimiter of custom input styles should be localized.
79        customInputStyles.setSummary(TextUtils.join(", ", subtypeNames));
80    }
81}
82