1 /*
2  * Copyright (C) 2013 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.settings;
18 
19 import android.content.ComponentName;
20 import android.content.Context;
21 import android.content.DialogInterface;
22 import android.content.Intent;
23 import android.content.pm.ApplicationInfo;
24 import android.content.pm.PackageManager;
25 import android.graphics.drawable.Drawable;
26 import android.os.Bundle;
27 import android.provider.Telephony.Sms.Intents;
28 import android.telephony.TelephonyManager;
29 import android.text.TextUtils;
30 import android.view.LayoutInflater;
31 import android.view.View;
32 import android.view.ViewGroup;
33 import android.widget.BaseAdapter;
34 import android.widget.ImageView;
35 import android.widget.TextView;
36 
37 import com.android.internal.app.AlertActivity;
38 import com.android.internal.app.AlertController;
39 import com.android.internal.telephony.SmsApplication;
40 import com.android.internal.telephony.SmsApplication.SmsApplicationData;
41 
42 import java.util.ArrayList;
43 import java.util.List;
44 
45 public final class SmsDefaultDialog extends AlertActivity implements
46         DialogInterface.OnClickListener {
47     private SmsApplicationData mNewSmsApplicationData;
48 
49     @Override
onCreate(Bundle savedInstanceState)50     protected void onCreate(Bundle savedInstanceState) {
51         super.onCreate(savedInstanceState);
52 
53         Intent intent = getIntent();
54         String packageName = intent.getStringExtra(Intents.EXTRA_PACKAGE_NAME);
55 
56         setResult(RESULT_CANCELED);
57         if (!buildDialog(packageName)) {
58             finish();
59         }
60     }
61 
62     @Override
onClick(DialogInterface dialog, int which)63     public void onClick(DialogInterface dialog, int which) {
64         switch (which) {
65             case BUTTON_POSITIVE:
66                 SmsApplication.setDefaultApplication(mNewSmsApplicationData.mPackageName, this);
67                 setResult(RESULT_OK);
68                 break;
69             case BUTTON_NEGATIVE:
70                 break;
71             default:
72                 if (which >= 0) {
73                     AppListAdapter adapter = (AppListAdapter) mAlertParams.mAdapter;
74                     if (!adapter.isSelected(which)) {
75                         String packageName = adapter.getPackageName(which);
76                         if (!TextUtils.isEmpty(packageName)) {
77                             SmsApplication.setDefaultApplication(packageName, this);
78                             setResult(RESULT_OK);
79                         }
80                     }
81                 }
82                 break;
83         }
84     }
85 
buildDialog(String packageName)86     private boolean buildDialog(String packageName) {
87         TelephonyManager tm = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
88         if (!tm.isSmsCapable()) {
89             // No phone, no SMS
90             return false;
91         }
92         final AlertController.AlertParams p = mAlertParams;
93         p.mTitle = getString(R.string.sms_change_default_dialog_title);
94         mNewSmsApplicationData = SmsApplication.getSmsApplicationData(packageName, this);
95         if (mNewSmsApplicationData != null) {
96             // New default SMS app specified, change to that directly after the confirmation
97             // dialog.
98             SmsApplicationData oldSmsApplicationData = null;
99             ComponentName oldSmsComponent = SmsApplication.getDefaultSmsApplication(this, true);
100             if (oldSmsComponent != null) {
101                 oldSmsApplicationData = SmsApplication.getSmsApplicationData(
102                         oldSmsComponent.getPackageName(), this);
103                 if (oldSmsApplicationData.mPackageName.equals(
104                         mNewSmsApplicationData.mPackageName)) {
105                     return false;
106                 }
107             }
108 
109             // Compose dialog; get
110             if (oldSmsApplicationData != null) {
111                 p.mMessage = getString(R.string.sms_change_default_dialog_text,
112                         mNewSmsApplicationData.mApplicationName,
113                         oldSmsApplicationData.mApplicationName);
114             } else {
115                 p.mMessage = getString(R.string.sms_change_default_no_previous_dialog_text,
116                         mNewSmsApplicationData.mApplicationName);
117             }
118             p.mPositiveButtonText = getString(R.string.yes);
119             p.mNegativeButtonText = getString(R.string.no);
120             p.mPositiveButtonListener = this;
121             p.mNegativeButtonListener = this;
122         } else {
123             // No new default SMS app specified, show a list of all SMS apps and let user to pick
124             p.mAdapter = new AppListAdapter();
125             p.mOnClickListener = this;
126             p.mNegativeButtonText = getString(R.string.cancel);
127             p.mNegativeButtonListener = this;
128         }
129         setupAlert();
130 
131         return true;
132     }
133 
134     /**
135      * The list of SMS apps with label, icon. Current default SMS app is marked as "default".
136      */
137     private class AppListAdapter extends BaseAdapter {
138         /**
139          * SMS app item in the list
140          */
141         private class Item {
142             final String label;         // app label
143             final Drawable icon;        // app icon
144             final String packgeName;    // full app package name
145 
Item(String label, Drawable icon, String packageName)146             public Item(String label, Drawable icon, String packageName) {
147                 this.label = label;
148                 this.icon = icon;
149                 this.packgeName = packageName;
150             }
151         }
152 
153         // The list
154         private final List<Item> mItems;
155         // The index of selected
156         private final int mSelectedIndex;
157 
AppListAdapter()158         public AppListAdapter() {
159             mItems = getItems();
160             int selected = getSelectedIndex();
161             // Move selected up to the top so it is easy to find
162             if (selected > 0) {
163                 Item item = mItems.remove(selected);
164                 mItems.add(0, item);
165                 selected = 0;
166             }
167             mSelectedIndex = selected;
168         }
169 
170         @Override
getCount()171         public int getCount() {
172             return mItems != null ? mItems.size() : 0;
173         }
174 
175         @Override
getItem(int position)176         public Object getItem(int position) {
177             return mItems != null && position < mItems.size() ? mItems.get(position) : null;
178         }
179 
180         @Override
getItemId(int position)181         public long getItemId(int position) {
182             return position;
183         }
184 
185         @Override
getView(int position, View convertView, ViewGroup parent)186         public View getView(int position, View convertView, ViewGroup parent) {
187             Item item = ((Item) getItem(position));
188             LayoutInflater inflater = getLayoutInflater();
189             View view = inflater.inflate(R.layout.app_preference_item, parent, false);
190             TextView textView = (TextView) view.findViewById(android.R.id.title);
191             textView.setText(item.label);
192             if (position == mSelectedIndex) {
193                 view.findViewById(R.id.default_label).setVisibility(View.VISIBLE);
194             } else {
195                 view.findViewById(R.id.default_label).setVisibility(View.GONE);
196             }
197             ImageView imageView = (ImageView)view.findViewById(android.R.id.icon);
198             imageView.setImageDrawable(item.icon);
199             return view;
200         }
201 
202         /**
203          * Get the selected package name by
204          *
205          * @param position the index of the item in the list
206          * @return the package name of selected item
207          */
getPackageName(int position)208         public String getPackageName(int position) {
209             Item item = (Item) getItem(position);
210             if (item != null) {
211                 return item.packgeName;
212             }
213             return null;
214         }
215 
216         /**
217          * Check if an item at a position is already selected
218          *
219          * @param position the index of the item in the list
220          * @return true if the item at the position is already selected, false otherwise
221          */
isSelected(int position)222         public boolean isSelected(int position) {
223             return position == mSelectedIndex;
224         }
225 
226         // Get the list items by looking for SMS apps
getItems()227         private List<Item> getItems() {
228             PackageManager pm = getPackageManager();
229             List<Item> items = new ArrayList<>();
230             for (SmsApplication.SmsApplicationData app :
231                     SmsApplication.getApplicationCollection(SmsDefaultDialog.this)) {
232                 try {
233                     String packageName = app.mPackageName;
234                     ApplicationInfo appInfo = pm.getApplicationInfo(packageName, 0/*flags*/);
235                     if (appInfo != null) {
236                         items.add(new Item(
237                                 appInfo.loadLabel(pm).toString(),
238                                 appInfo.loadIcon(pm),
239                                 packageName));
240                     }
241                 } catch (PackageManager.NameNotFoundException e) {
242                     // Ignore package can't be found
243                 }
244             }
245             return items;
246         }
247 
248         // Get the selected item index by looking for the current default SMS app
getSelectedIndex()249         private int getSelectedIndex() {
250             ComponentName appName = SmsApplication.getDefaultSmsApplication(
251                     SmsDefaultDialog.this, true);
252             if (appName != null) {
253                 String defaultSmsAppPackageName = appName.getPackageName();
254                 if (!TextUtils.isEmpty(defaultSmsAppPackageName)) {
255                     for (int i = 0; i < mItems.size(); i++) {
256                         if (TextUtils.equals(mItems.get(i).packgeName, defaultSmsAppPackageName)) {
257                             return i;
258                         }
259                     }
260                 }
261             }
262             return -1;
263         }
264     }
265 }
266