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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.content.SharedPreferences;
     22 import android.content.pm.ActivityInfo;
     23 import android.content.pm.PackageManager;
     24 import android.content.pm.ResolveInfo;
     25 import android.database.Cursor;
     26 import android.preference.ListPreference;
     27 import android.preference.PreferenceManager;
     28 import android.text.TextUtils;
     29 import android.util.AttributeSet;
     30 import android.util.Log;
     31 
     32 import com.android.internal.telephony.Phone;
     33 import com.android.phone.CallFeaturesSetting;
     34 import com.android.phone.PhoneGlobals;
     35 import com.android.phone.R;
     36 
     37 import java.util.ArrayList;
     38 import java.util.HashMap;
     39 import java.util.List;
     40 import java.util.Map;
     41 
     42 public class VoicemailProviderListPreference extends ListPreference {
     43     private static final boolean DBG = (PhoneGlobals.DBG_LEVEL >= 2);
     44     private static final String LOG_TAG = VoicemailProviderListPreference.class.getSimpleName();
     45 
     46     // Key identifying the default voice mail provider
     47     public static final String DEFAULT_KEY = "";
     48 
     49     public class VoicemailProvider {
     50         public String name;
     51         public Intent intent;
     52 
     53         public VoicemailProvider(String name, Intent intent) {
     54             this.name = name;
     55             this.intent = intent;
     56         }
     57 
     58         public String toString() {
     59             return "[ Name: " + name + ", Intent: " + intent + " ]";
     60         }
     61     }
     62 
     63     private Phone mPhone;
     64 
     65     /**
     66      * Data about discovered voice mail settings providers.
     67      * Is populated by querying which activities can handle ACTION_CONFIGURE_VOICEMAIL.
     68      * They key in this map is package name + activity name.
     69      * We always add an entry for the default provider with a key of empty
     70      * string and intent value of null.
     71      * @see #initVoicemailProviders()
     72      */
     73     private final Map<String, VoicemailProvider> mVmProvidersData =
     74             new HashMap<String, VoicemailProvider>();
     75 
     76 
     77     public VoicemailProviderListPreference(Context context, AttributeSet attrs) {
     78         super(context, attrs);
     79     }
     80 
     81     public void init(Phone phone, Intent intent) {
     82         mPhone = phone;
     83 
     84         initVoicemailProviders(intent);
     85     }
     86 
     87     /**
     88      * Enumerates existing VM providers and puts their data into the list and populates
     89      * the preference list objects with their names.
     90      * In case we are called with ACTION_ADD_VOICEMAIL intent the intent may have
     91      * an extra string called IGNORE_PROVIDER_EXTRA with "package.activityName" of the provider
     92      * which should be hidden when we bring up the list of possible VM providers to choose.
     93      */
     94     private void initVoicemailProviders(Intent activityIntent) {
     95         if (DBG) log("initVoicemailProviders()");
     96 
     97         String providerToIgnore = null;
     98         if (activityIntent.getAction().equals(CallFeaturesSetting.ACTION_ADD_VOICEMAIL)
     99                 && activityIntent.hasExtra(CallFeaturesSetting.IGNORE_PROVIDER_EXTRA)) {
    100             // Remove this provider from the list.
    101             if (DBG) log("Found ACTION_ADD_VOICEMAIL.");
    102             providerToIgnore =
    103                     activityIntent.getStringExtra(CallFeaturesSetting.IGNORE_PROVIDER_EXTRA);
    104             VoicemailProviderSettingsUtil.delete(mPhone.getContext(), providerToIgnore);
    105         }
    106 
    107         mVmProvidersData.clear();
    108 
    109         List<String> entries = new ArrayList<String>();
    110         List<String> values = new ArrayList<String>();
    111 
    112         // Add default voicemail provider.
    113         final String myCarrier =
    114                 mPhone.getContext().getResources().getString(R.string.voicemail_default);
    115         mVmProvidersData.put(VoicemailProviderListPreference.DEFAULT_KEY,
    116                 new VoicemailProvider(myCarrier, null));
    117         entries.add(myCarrier);
    118         values.add(VoicemailProviderListPreference.DEFAULT_KEY);
    119 
    120         // Add other voicemail providers.
    121         PackageManager pm = mPhone.getContext().getPackageManager();
    122         Intent intent = new Intent(CallFeaturesSetting.ACTION_CONFIGURE_VOICEMAIL);
    123         List<ResolveInfo> resolveInfos = pm.queryIntentActivities(intent, 0);
    124         for (int i = 0; i < resolveInfos.size(); i++) {
    125             final ResolveInfo ri= resolveInfos.get(i);
    126             final ActivityInfo currentActivityInfo = ri.activityInfo;
    127             final String key = currentActivityInfo.name;
    128 
    129             if (key.equals(providerToIgnore)) {
    130                 continue;
    131             }
    132 
    133             if (DBG) log("Loading key: " + key);
    134             CharSequence label = ri.loadLabel(pm);
    135             if (TextUtils.isEmpty(label)) {
    136                 Log.w(LOG_TAG, "Adding voicemail provider with no name for display.");
    137             }
    138             String nameForDisplay = (label != null) ? label.toString() : "";
    139             Intent providerIntent = new Intent();
    140             providerIntent.setAction(CallFeaturesSetting.ACTION_CONFIGURE_VOICEMAIL);
    141             providerIntent.setClassName(currentActivityInfo.packageName, currentActivityInfo.name);
    142             VoicemailProvider vmProvider = new VoicemailProvider(nameForDisplay, providerIntent);
    143 
    144             if (DBG) log("Store VoicemailProvider. Key: " + key + " -> " + vmProvider.toString());
    145             mVmProvidersData.put(key, vmProvider);
    146             entries.add(vmProvider.name);
    147             values.add(key);
    148         }
    149 
    150         setEntries(entries.toArray(new String[0]));
    151         setEntryValues(values.toArray(new String[0]));
    152     }
    153 
    154     @Override
    155     public String getValue() {
    156         final String providerKey = super.getValue();
    157         return (providerKey != null) ? providerKey : DEFAULT_KEY;
    158     }
    159 
    160     public VoicemailProvider getVoicemailProvider(String key) {
    161         return mVmProvidersData.get(key);
    162     }
    163 
    164     public boolean hasMoreThanOneVoicemailProvider() {
    165         return mVmProvidersData.size() > 1;
    166     }
    167 
    168     private static void log(String msg) {
    169         Log.d(LOG_TAG, msg);
    170     }
    171 }
    172