Home | History | Annotate | Download | only in contacts 
      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.contacts;
     18 
     19 import com.android.common.io.MoreCloseables;
     20 import com.android.contacts.voicemail.VoicemailStatusHelperImpl;
     21 
     22 import android.content.AsyncQueryHandler;
     23 import android.database.Cursor;
     24 import android.net.Uri;
     25 import android.provider.VoicemailContract.Status;
     26 import android.provider.VoicemailContract.Voicemails;
     27 import android.util.Log;
     28 
     29 /**
     30  * Class used by {@link CallDetailActivity} to fire async content resolver queries.
     31  */
     32 public class CallDetailActivityQueryHandler extends AsyncQueryHandler {
     33     private static final String TAG = "CallDetail";
     34     private static final int QUERY_VOICEMAIL_CONTENT_TOKEN = 101;
     35     private static final int QUERY_VOICEMAIL_STATUS_TOKEN = 102;
     36 
     37     private final String[] VOICEMAIL_CONTENT_PROJECTION = new String[] {
     38         Voicemails.SOURCE_PACKAGE,
     39         Voicemails.HAS_CONTENT
     40     };
     41     private static final int SOURCE_PACKAGE_COLUMN_INDEX = 0;
     42     private static final int HAS_CONTENT_COLUMN_INDEX = 1;
     43 
     44     private final CallDetailActivity mCallDetailActivity;
     45 
     46     public CallDetailActivityQueryHandler(CallDetailActivity callDetailActivity) {
     47         super(callDetailActivity.getContentResolver());
     48         mCallDetailActivity = callDetailActivity;
     49     }
     50 
     51     /**
     52      * Fires a query to update voicemail status for the given voicemail record. On completion of the
     53      * query a call to {@link CallDetailActivity#updateVoicemailStatusMessage(Cursor)} is made.
     54      * <p>
     55      * if this is a voicemail record then it makes up to two asynchronous content resolver queries.
     56      * The first one to fetch voicemail content details and check if the voicemail record has audio.
     57      * If the voicemail record does not have an audio yet then it fires the second query to get the
     58      * voicemail status of the associated source.
     59      */
     60     public void startVoicemailStatusQuery(Uri voicemailUri) {
     61         startQuery(QUERY_VOICEMAIL_CONTENT_TOKEN, null, voicemailUri, VOICEMAIL_CONTENT_PROJECTION,
     62                 null, null, null);
     63     }
     64 
     65     @Override
     66     protected synchronized void onQueryComplete(int token, Object cookie, Cursor cursor) {
     67         try {
     68             if (token == QUERY_VOICEMAIL_CONTENT_TOKEN) {
     69                 // Query voicemail status only if this voicemail record does not have audio.
     70                 if (moveToFirst(cursor) && hasNoAudio(cursor)) {
     71                     startQuery(QUERY_VOICEMAIL_STATUS_TOKEN, null,
     72                             Status.buildSourceUri(getSourcePackage(cursor)),
     73                             VoicemailStatusHelperImpl.PROJECTION, null, null, null);
     74                 } else {
     75                     // nothing to show in status
     76                     mCallDetailActivity.updateVoicemailStatusMessage(null);
     77                 }
     78             } else if (token == QUERY_VOICEMAIL_STATUS_TOKEN) {
     79                 mCallDetailActivity.updateVoicemailStatusMessage(cursor);
     80             } else {
     81                 Log.w(TAG, "Unknown query completed: ignoring: " + token);
     82             }
     83         } finally {
     84             MoreCloseables.closeQuietly(cursor);
     85         }
     86     }
     87 
     88     /** Check that the cursor is non-null and can be moved to first. */
     89     private boolean moveToFirst(Cursor cursor) {
     90         if (cursor == null || !cursor.moveToFirst()) {
     91             Log.e(TAG, "Cursor not valid, could not move to first");
     92             return false;
     93         }
     94         return true;
     95     }
     96 
     97     private boolean hasNoAudio(Cursor voicemailCursor) {
     98         return voicemailCursor.getInt(HAS_CONTENT_COLUMN_INDEX) == 0;
     99     }
    100 
    101     private String getSourcePackage(Cursor voicemailCursor) {
    102         return voicemailCursor.getString(SOURCE_PACKAGE_COLUMN_INDEX);
    103     }
    104 }
    105