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      1 /*
      2  * Copyright (C) 2011 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.server.telecom;
     18 
     19 import android.app.ActionBar;
     20 import android.app.Activity;
     21 import android.content.Context;
     22 import android.content.SharedPreferences;
     23 import android.os.Bundle;
     24 import android.preference.EditTextPreference;
     25 import android.preference.Preference;
     26 import android.preference.PreferenceActivity;
     27 import android.preference.PreferenceScreen;
     28 import android.view.Menu;
     29 import android.view.MenuItem;
     30 
     31 // TODO: This class is newly copied into Telecom (com.android.server.telecom) from it previous
     32 // location in Telephony (com.android.phone). User's preferences stored in the old location
     33 // will be lost. We need code here to migrate KLP -> LMP settings values.
     34 
     35 /**
     36  * Settings activity to manage the responses available for the "Respond via SMS Message" feature to
     37  * respond to incoming calls.
     38  */
     39 public class RespondViaSmsSettings extends PreferenceActivity
     40         implements Preference.OnPreferenceChangeListener {
     41 
     42     private SharedPreferences mPrefs;
     43 
     44     @Override
     45     protected void onCreate(Bundle icicle) {
     46         super.onCreate(icicle);
     47         Log.d(this, "Settings: onCreate()...");
     48 
     49         // This function guarantees that QuickResponses will be in our
     50         // SharedPreferences with the proper values considering there may be
     51         // old QuickResponses in Telephony pre L.
     52         QuickResponseUtils.maybeMigrateLegacyQuickResponses(this);
     53 
     54         getPreferenceManager().setSharedPreferencesName(QuickResponseUtils.SHARED_PREFERENCES_NAME);
     55         mPrefs = getPreferenceManager().getSharedPreferences();
     56     }
     57 
     58     @Override
     59     public void onResume() {
     60         super.onResume();
     61 
     62         PreferenceScreen preferenceScreen = getPreferenceScreen();
     63         if (preferenceScreen != null) {
     64             preferenceScreen.removeAll();
     65         }
     66 
     67         // This preference screen is ultra-simple; it's just 4 plain
     68         // <EditTextPreference>s, one for each of the 4 "canned responses".
     69         //
     70         // The only nontrivial thing we do here is copy the text value of
     71         // each of those EditTextPreferences and use it as the preference's
     72         // "title" as well, so that the user will immediately see all 4
     73         // strings when they arrive here.
     74         //
     75         // Also, listen for change events (since we'll need to update the
     76         // title any time the user edits one of the strings.)
     77 
     78         addPreferencesFromResource(R.xml.respond_via_sms_settings);
     79         initPref(findPreference(QuickResponseUtils.KEY_CANNED_RESPONSE_PREF_1));
     80         initPref(findPreference(QuickResponseUtils.KEY_CANNED_RESPONSE_PREF_2));
     81         initPref(findPreference(QuickResponseUtils.KEY_CANNED_RESPONSE_PREF_3));
     82         initPref(findPreference(QuickResponseUtils.KEY_CANNED_RESPONSE_PREF_4));
     83 
     84         ActionBar actionBar = getActionBar();
     85         if (actionBar != null) {
     86             // android.R.id.home will be triggered in onOptionsItemSelected()
     87             actionBar.setDisplayHomeAsUpEnabled(true);
     88         }
     89     }
     90 
     91     // Preference.OnPreferenceChangeListener implementation
     92     @Override
     93     public boolean onPreferenceChange(Preference preference, Object newValue) {
     94         Log.d(this, "onPreferenceChange: key = %s", preference.getKey());
     95         Log.d(this, "  preference = '%s'", preference);
     96         Log.d(this, "  newValue = '%s'", newValue);
     97 
     98         EditTextPreference pref = (EditTextPreference) preference;
     99 
    100         // Copy the new text over to the title, just like in onCreate().
    101         // (Watch out: onPreferenceChange() is called *before* the
    102         // Preference itself gets updated, so we need to use newValue here
    103         // rather than pref.getText().)
    104         pref.setTitle((String) newValue);
    105 
    106         // Save the new preference value.
    107         SharedPreferences.Editor editor = mPrefs.edit();
    108         editor.putString(pref.getKey(), (String) newValue).commit();
    109 
    110         return true;  // means it's OK to update the state of the Preference with the new value
    111     }
    112 
    113     @Override
    114     public boolean onOptionsItemSelected(MenuItem item) {
    115         final int itemId = item.getItemId();
    116         switch (itemId) {
    117             case android.R.id.home:
    118                 goUpToTopLevelSetting(this);
    119                 return true;
    120             default:
    121         }
    122         return super.onOptionsItemSelected(item);
    123     }
    124 
    125     /**
    126      * Finish current Activity and go up to the top level Settings.
    127      */
    128     public static void goUpToTopLevelSetting(Activity activity) {
    129         activity.finish();
    130     }
    131 
    132     /**
    133      * Initialize the preference to the persisted preference value or default text.
    134      */
    135     private void initPref(Preference preference) {
    136         EditTextPreference pref = (EditTextPreference) preference;
    137         pref.setText(mPrefs.getString(pref.getKey(), pref.getText()));
    138         pref.setTitle(pref.getText());
    139         pref.setOnPreferenceChangeListener(this);
    140     }
    141 }
    142