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 
VoicemailProvider(String name, Intent intent)53         public VoicemailProvider(String name, Intent intent) {
54             this.name = name;
55             this.intent = intent;
56         }
57 
toString()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 
VoicemailProviderListPreference(Context context, AttributeSet attrs)77     public VoicemailProviderListPreference(Context context, AttributeSet attrs) {
78         super(context, attrs);
79     }
80 
init(Phone phone, Intent intent)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      */
initVoicemailProviders(Intent activityIntent)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
getValue()155     public String getValue() {
156         final String providerKey = super.getValue();
157         return (providerKey != null) ? providerKey : DEFAULT_KEY;
158     }
159 
getVoicemailProvider(String key)160     public VoicemailProvider getVoicemailProvider(String key) {
161         return mVmProvidersData.get(key);
162     }
163 
hasMoreThanOneVoicemailProvider()164     public boolean hasMoreThanOneVoicemailProvider() {
165         return mVmProvidersData.size() > 1;
166     }
167 
log(String msg)168     private static void log(String msg) {
169         Log.d(LOG_TAG, msg);
170     }
171 }
172