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      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.phone.settings;
     18 
     19 import android.content.Context;
     20 import android.content.Intent;
     21 import android.os.UserHandle;
     22 import android.preference.ListPreference;
     23 import android.preference.Preference;
     24 import android.provider.Settings;
     25 import android.telecom.TelecomManager;
     26 import android.util.AttributeSet;
     27 import android.util.Log;
     28 
     29 import com.android.phone.PhoneGlobals;
     30 import com.android.phone.R;
     31 
     32 public class TtyModeListPreference extends ListPreference
     33         implements Preference.OnPreferenceChangeListener {
     34     private static final String LOG_TAG = TtyModeListPreference.class.getSimpleName();
     35     private static final boolean DBG = (PhoneGlobals.DBG_LEVEL >= 2);
     36 
     37     public TtyModeListPreference(Context context, AttributeSet attrs) {
     38         super(context, attrs);
     39     }
     40 
     41     public void init() {
     42         setOnPreferenceChangeListener(this);
     43 
     44         int settingsTtyMode = Settings.Secure.getInt(getContext().getContentResolver(),
     45                 Settings.Secure.PREFERRED_TTY_MODE,
     46                 TelecomManager.TTY_MODE_OFF);
     47         setValue(Integer.toString(settingsTtyMode));
     48         updatePreferredTtyModeSummary(settingsTtyMode);
     49     }
     50 
     51     @Override
     52     public boolean onPreferenceChange(Preference preference, Object objValue) {
     53         if (preference == this) {
     54             int buttonTtyMode;
     55             buttonTtyMode = Integer.valueOf((String) objValue).intValue();
     56             int settingsTtyMode = android.provider.Settings.Secure.getInt(
     57                     getContext().getContentResolver(),
     58                     Settings.Secure.PREFERRED_TTY_MODE,
     59                     TelecomManager.TTY_MODE_OFF);
     60             if (DBG) log("handleTTYChange: requesting set TTY mode enable (TTY) to" +
     61                     Integer.toString(buttonTtyMode));
     62 
     63             if (buttonTtyMode != settingsTtyMode) {
     64                 switch(buttonTtyMode) {
     65                     case TelecomManager.TTY_MODE_OFF:
     66                     case TelecomManager.TTY_MODE_FULL:
     67                     case TelecomManager.TTY_MODE_HCO:
     68                     case TelecomManager.TTY_MODE_VCO:
     69                         Settings.Secure.putInt(
     70                                 getContext().getContentResolver(),
     71                                 Settings.Secure.PREFERRED_TTY_MODE,
     72                                 buttonTtyMode);
     73                         break;
     74                     default:
     75                         buttonTtyMode = TelecomManager.TTY_MODE_OFF;
     76                 }
     77 
     78                 setValue(Integer.toString(buttonTtyMode));
     79                 updatePreferredTtyModeSummary(buttonTtyMode);
     80                 Intent ttyModeChanged =
     81                         new Intent(TelecomManager.ACTION_TTY_PREFERRED_MODE_CHANGED);
     82                 ttyModeChanged.putExtra(TelecomManager.EXTRA_TTY_PREFERRED_MODE, buttonTtyMode);
     83                 getContext().sendBroadcastAsUser(ttyModeChanged, UserHandle.ALL);
     84             }
     85         }
     86         return true;
     87     }
     88 
     89     private void updatePreferredTtyModeSummary(int TtyMode) {
     90         String [] txts = getContext().getResources().getStringArray(R.array.tty_mode_entries);
     91         switch(TtyMode) {
     92             case TelecomManager.TTY_MODE_OFF:
     93             case TelecomManager.TTY_MODE_HCO:
     94             case TelecomManager.TTY_MODE_VCO:
     95             case TelecomManager.TTY_MODE_FULL:
     96                 setSummary(txts[TtyMode]);
     97                 break;
     98             default:
     99                 setEnabled(false);
    100                 setSummary(txts[TelecomManager.TTY_MODE_OFF]);
    101                 break;
    102         }
    103     }
    104 
    105     private static void log(String msg) {
    106         Log.d(LOG_TAG, msg);
    107     }
    108 }
    109