1 /*
2  * Copyright (C) 2016 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 
17 package com.android.settings.inputmethod;
18 
19 import android.content.Context;
20 import android.view.textservice.SpellCheckerInfo;
21 import android.view.textservice.TextServicesManager;
22 
23 import androidx.preference.Preference;
24 import androidx.preference.PreferenceScreen;
25 
26 import com.android.settings.R;
27 import com.android.settings.core.PreferenceControllerMixin;
28 import com.android.settingslib.core.AbstractPreferenceController;
29 import com.android.settingslib.inputmethod.InputMethodAndSubtypeUtilCompat;
30 
31 public class SpellCheckerPreferenceController extends AbstractPreferenceController
32         implements PreferenceControllerMixin {
33 
34     public static final String KEY_SPELL_CHECKERS = "spellcheckers_settings";
35 
36     private final TextServicesManager mTextServicesManager;
37 
SpellCheckerPreferenceController(Context context)38     public SpellCheckerPreferenceController(Context context) {
39         super(context);
40         mTextServicesManager = (TextServicesManager) context.getSystemService(
41                 Context.TEXT_SERVICES_MANAGER_SERVICE);
42     }
43 
44     @Override
displayPreference(PreferenceScreen screen)45     public void displayPreference(PreferenceScreen screen) {
46         super.displayPreference(screen);
47         final Preference preference = screen.findPreference(KEY_SPELL_CHECKERS);
48         if (preference != null) {
49             InputMethodAndSubtypeUtilCompat.removeUnnecessaryNonPersistentPreference(preference);
50         }
51     }
52 
53     @Override
isAvailable()54     public boolean isAvailable() {
55         return mContext.getResources().getBoolean(R.bool.config_show_spellcheckers_settings);
56     }
57 
58     @Override
getPreferenceKey()59     public String getPreferenceKey() {
60         return KEY_SPELL_CHECKERS;
61     }
62 
63     @Override
updateState(Preference preference)64     public void updateState(Preference preference) {
65         if (preference == null) {
66             return;
67         }
68         if (!mTextServicesManager.isSpellCheckerEnabled()) {
69             preference.setSummary(R.string.switch_off_text);
70         } else {
71             final SpellCheckerInfo sci = mTextServicesManager.getCurrentSpellChecker();
72             if (sci != null) {
73                 preference.setSummary(sci.loadLabel(mContext.getPackageManager()));
74             } else {
75                 preference.setSummary(R.string.spell_checker_not_selected);
76             }
77         }
78     }
79 }
80