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      1 /*
      2  * Copyright (C) 2008 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.deskclock;
     18 
     19 import android.content.Context;
     20 import android.media.Ringtone;
     21 import android.media.RingtoneManager;
     22 import android.net.Uri;
     23 import android.os.AsyncTask;
     24 import android.preference.RingtonePreference;
     25 import android.provider.Settings;
     26 import android.util.AttributeSet;
     27 
     28 /**
     29  * The RingtonePreference does not have a way to get/set the current ringtone so
     30  * we override onSaveRingtone and onRestoreRingtone to get the same behavior.
     31  */
     32 public class AlarmPreference extends RingtonePreference {
     33     private Uri mAlert;
     34     private boolean mChangeDefault;
     35     private AsyncTask mRingtoneTask;
     36 
     37     public AlarmPreference(Context context, AttributeSet attrs) {
     38         super(context, attrs);
     39     }
     40 
     41     @Override
     42     protected void onSaveRingtone(Uri ringtoneUri) {
     43         setAlert(ringtoneUri);
     44         if (mChangeDefault) {
     45             // Update the default alert in the system.
     46             Settings.System.putString(getContext().getContentResolver(),
     47                     Settings.System.ALARM_ALERT,
     48                     ringtoneUri == null ? null : ringtoneUri.toString());
     49         }
     50     }
     51 
     52     @Override
     53     protected Uri onRestoreRingtone() {
     54         if (RingtoneManager.isDefault(mAlert)) {
     55             return RingtoneManager.getActualDefaultRingtoneUri(getContext(),
     56                     RingtoneManager.TYPE_ALARM);
     57         }
     58         return mAlert;
     59     }
     60 
     61     public void setAlert(Uri alert) {
     62         mAlert = alert;
     63         if (alert != null) {
     64             setSummary(R.string.loading_ringtone);
     65             if (mRingtoneTask != null) {
     66                 mRingtoneTask.cancel(true);
     67             }
     68             mRingtoneTask = new AsyncTask<Uri, Void, String>() {
     69                 @Override
     70                 protected String doInBackground(Uri... params) {
     71                     Ringtone r = RingtoneManager.getRingtone(
     72                             getContext(), params[0]);
     73                     if (r == null) {
     74                         r = RingtoneManager.getRingtone(getContext(),
     75                                 Settings.System.DEFAULT_ALARM_ALERT_URI);
     76                     }
     77                     if (r != null) {
     78                         return r.getTitle(getContext());
     79                     }
     80                     return null;
     81                 }
     82 
     83                 @Override
     84                 protected void onPostExecute(String title) {
     85                     if (!isCancelled()) {
     86                         setSummary(title);
     87                         mRingtoneTask = null;
     88                     }
     89                 }
     90             }.execute(alert);
     91         } else {
     92             setSummary(R.string.silent_alarm_summary);
     93         }
     94     }
     95 
     96     public Uri getAlert() {
     97         return mAlert;
     98     }
     99 
    100     public void setChangeDefault() {
    101         mChangeDefault = true;
    102     }
    103 }
    104