Home | History | Annotate | Download | only in settings 
      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 
     17 package com.android.inputmethod.latin.settings;
     18 
     19 import android.content.Context;
     20 import android.content.SharedPreferences;
     21 import android.content.res.Resources;
     22 import android.os.Build;
     23 import android.os.Bundle;
     24 import android.preference.Preference;
     25 
     26 import com.android.inputmethod.latin.AudioAndHapticFeedbackManager;
     27 import com.android.inputmethod.latin.R;
     28 import com.android.inputmethod.latin.RichInputMethodManager;
     29 
     30 /**
     31  * "Preferences" settings sub screen.
     32  *
     33  * This settings sub screen handles the following input preferences.
     34  * - Auto-capitalization
     35  * - Double-space period
     36  * - Vibrate on keypress
     37  * - Sound on keypress
     38  * - Popup on keypress
     39  * - Voice input key
     40  */
     41 public final class PreferencesSettingsFragment extends SubScreenFragment {
     42 
     43     private static final boolean VOICE_IME_ENABLED =
     44             Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN;
     45 
     46     @Override
     47     public void onCreate(final Bundle icicle) {
     48         super.onCreate(icicle);
     49         addPreferencesFromResource(R.xml.prefs_screen_preferences);
     50 
     51         final Resources res = getResources();
     52         final Context context = getActivity();
     53 
     54         // When we are called from the Settings application but we are not already running, some
     55         // singleton and utility classes may not have been initialized.  We have to call
     56         // initialization method of these classes here. See {@link LatinIME#onCreate()}.
     57         RichInputMethodManager.init(context);
     58 
     59         final boolean showVoiceKeyOption = res.getBoolean(
     60                 R.bool.config_enable_show_voice_key_option);
     61         if (!showVoiceKeyOption) {
     62             removePreference(Settings.PREF_VOICE_INPUT_KEY);
     63         }
     64         if (!AudioAndHapticFeedbackManager.getInstance().hasVibrator()) {
     65             removePreference(Settings.PREF_VIBRATE_ON);
     66         }
     67         if (!Settings.readFromBuildConfigIfToShowKeyPreviewPopupOption(res)) {
     68             removePreference(Settings.PREF_POPUP_ON);
     69         }
     70 
     71         refreshEnablingsOfKeypressSoundAndVibrationSettings();
     72     }
     73 
     74     @Override
     75     public void onResume() {
     76         super.onResume();
     77         final Preference voiceInputKeyOption = findPreference(Settings.PREF_VOICE_INPUT_KEY);
     78         if (voiceInputKeyOption != null) {
     79             RichInputMethodManager.getInstance().refreshSubtypeCaches();
     80             voiceInputKeyOption.setEnabled(VOICE_IME_ENABLED);
     81             voiceInputKeyOption.setSummary(VOICE_IME_ENABLED
     82                     ? null : getText(R.string.voice_input_disabled_summary));
     83         }
     84     }
     85 
     86     @Override
     87     public void onSharedPreferenceChanged(final SharedPreferences prefs, final String key) {
     88         final Resources res = getResources();
     89         if (key.equals(Settings.PREF_POPUP_ON)) {
     90             setPreferenceEnabled(Settings.PREF_KEY_PREVIEW_POPUP_DISMISS_DELAY,
     91                     Settings.readKeyPreviewPopupEnabled(prefs, res));
     92         }
     93         refreshEnablingsOfKeypressSoundAndVibrationSettings();
     94     }
     95 
     96     private void refreshEnablingsOfKeypressSoundAndVibrationSettings() {
     97         final SharedPreferences prefs = getSharedPreferences();
     98         final Resources res = getResources();
     99         setPreferenceEnabled(Settings.PREF_VIBRATION_DURATION_SETTINGS,
    100                 Settings.readVibrationEnabled(prefs, res));
    101         setPreferenceEnabled(Settings.PREF_KEYPRESS_SOUND_VOLUME,
    102                 Settings.readKeypressSoundEnabled(prefs, res));
    103     }
    104 }
    105