• Home
  • History
  • Annotate
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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.systemui.statusbar.policy;
18 
19 import android.app.ActivityManagerNative;
20 import android.content.BroadcastReceiver;
21 import android.content.Context;
22 import android.content.Intent;
23 import android.content.IntentFilter;
24 import android.content.pm.PackageManager;
25 import android.content.pm.UserInfo;
26 import android.content.res.Resources;
27 import android.database.Cursor;
28 import android.graphics.Bitmap;
29 import android.graphics.drawable.BitmapDrawable;
30 import android.graphics.drawable.Drawable;
31 import android.os.AsyncTask;
32 import android.os.RemoteException;
33 import android.os.UserHandle;
34 import android.os.UserManager;
35 import android.provider.ContactsContract;
36 import android.util.Log;
37 import android.util.Pair;
38 
39 import com.android.systemui.BitmapHelper;
40 import com.android.systemui.R;
41 import com.android.internal.util.UserIcons;
42 
43 import java.util.ArrayList;
44 
45 public final class UserInfoController {
46 
47     private static final String TAG = "UserInfoController";
48 
49     private final Context mContext;
50     private final ArrayList<OnUserInfoChangedListener> mCallbacks =
51             new ArrayList<OnUserInfoChangedListener>();
52     private AsyncTask<Void, Void, Pair<String, Drawable>> mUserInfoTask;
53 
54     private boolean mUseDefaultAvatar;
55     private String mUserName;
56     private Drawable mUserDrawable;
57 
UserInfoController(Context context)58     public UserInfoController(Context context) {
59         mContext = context;
60         IntentFilter filter = new IntentFilter();
61         filter.addAction(Intent.ACTION_USER_SWITCHED);
62         filter.addAction(Intent.ACTION_CONFIGURATION_CHANGED);
63         mContext.registerReceiver(mReceiver, filter);
64 
65         IntentFilter profileFilter = new IntentFilter();
66         profileFilter.addAction(ContactsContract.Intents.ACTION_PROFILE_CHANGED);
67         profileFilter.addAction(Intent.ACTION_USER_INFO_CHANGED);
68         mContext.registerReceiverAsUser(mProfileReceiver, UserHandle.ALL, profileFilter,
69                 null, null);
70     }
71 
addListener(OnUserInfoChangedListener callback)72     public void addListener(OnUserInfoChangedListener callback) {
73         mCallbacks.add(callback);
74     }
75 
76     private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
77         @Override
78         public void onReceive(Context context, Intent intent) {
79             final String action = intent.getAction();
80             if (Intent.ACTION_USER_SWITCHED.equals(action)) {
81                 reloadUserInfo();
82             } else if (Intent.ACTION_CONFIGURATION_CHANGED.equals(action)) {
83                 if (mUseDefaultAvatar) {
84                     reloadUserInfo();
85                 }
86             }
87         }
88     };
89 
90     private final BroadcastReceiver mProfileReceiver = new BroadcastReceiver() {
91         @Override
92         public void onReceive(Context context, Intent intent) {
93             final String action = intent.getAction();
94             if (ContactsContract.Intents.ACTION_PROFILE_CHANGED.equals(action) ||
95                     Intent.ACTION_USER_INFO_CHANGED.equals(action)) {
96                 try {
97                     final int currentUser = ActivityManagerNative.getDefault().getCurrentUser().id;
98                     final int changedUser =
99                             intent.getIntExtra(Intent.EXTRA_USER_HANDLE, getSendingUserId());
100                     if (changedUser == currentUser) {
101                         reloadUserInfo();
102                     }
103                 } catch (RemoteException e) {
104                     Log.e(TAG, "Couldn't get current user id for profile change", e);
105                 }
106             }
107         }
108     };
109 
reloadUserInfo()110     public void reloadUserInfo() {
111         if (mUserInfoTask != null) {
112             mUserInfoTask.cancel(false);
113             mUserInfoTask = null;
114         }
115         queryForUserInformation();
116     }
117 
queryForUserInformation()118     private void queryForUserInformation() {
119         Context currentUserContext;
120         UserInfo userInfo;
121         try {
122             userInfo = ActivityManagerNative.getDefault().getCurrentUser();
123             currentUserContext = mContext.createPackageContextAsUser("android", 0,
124                     new UserHandle(userInfo.id));
125         } catch (PackageManager.NameNotFoundException e) {
126             Log.e(TAG, "Couldn't create user context", e);
127             throw new RuntimeException(e);
128         } catch (RemoteException e) {
129             Log.e(TAG, "Couldn't get user info", e);
130             throw new RuntimeException(e);
131         }
132         final int userId = userInfo.id;
133         final boolean isGuest = userInfo.isGuest();
134         final String userName = userInfo.name;
135 
136         final Resources res = mContext.getResources();
137         final int avatarSize = Math.max(
138                 res.getDimensionPixelSize(R.dimen.multi_user_avatar_expanded_size),
139                 res.getDimensionPixelSize(R.dimen.multi_user_avatar_keyguard_size));
140 
141         final Context context = currentUserContext;
142         mUserInfoTask = new AsyncTask<Void, Void, Pair<String, Drawable>>() {
143             @Override
144             protected Pair<String, Drawable> doInBackground(Void... params) {
145                 final UserManager um = UserManager.get(mContext);
146 
147                 // Fall back to the UserManager nickname if we can't read the name from the local
148                 // profile below.
149                 String name = userName;
150                 Drawable avatar = null;
151                 Bitmap rawAvatar = um.getUserIcon(userId);
152                 if (rawAvatar != null) {
153                     avatar = new BitmapDrawable(mContext.getResources(),
154                             BitmapHelper.createCircularClip(rawAvatar, avatarSize, avatarSize));
155                 } else {
156                     avatar = UserIcons.getDefaultUserIcon(isGuest? UserHandle.USER_NULL : userId,
157                             /* light= */ true);
158                     mUseDefaultAvatar = true;
159                 }
160 
161                 // If it's a single-user device, get the profile name, since the nickname is not
162                 // usually valid
163                 if (um.getUsers().size() <= 1) {
164                     // Try and read the display name from the local profile
165                     final Cursor cursor = context.getContentResolver().query(
166                             ContactsContract.Profile.CONTENT_URI, new String[] {
167                                     ContactsContract.CommonDataKinds.Phone._ID,
168                                     ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME
169                             }, null, null, null);
170                     if (cursor != null) {
171                         try {
172                             if (cursor.moveToFirst()) {
173                                 name = cursor.getString(cursor.getColumnIndex(
174                                         ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
175                             }
176                         } finally {
177                             cursor.close();
178                         }
179                     }
180                 }
181                 return new Pair<String, Drawable>(name, avatar);
182             }
183 
184             @Override
185             protected void onPostExecute(Pair<String, Drawable> result) {
186                 mUserName = result.first;
187                 mUserDrawable = result.second;
188                 mUserInfoTask = null;
189                 notifyChanged();
190             }
191         };
192         mUserInfoTask.execute();
193     }
194 
notifyChanged()195     private void notifyChanged() {
196         for (OnUserInfoChangedListener listener : mCallbacks) {
197             listener.onUserInfoChanged(mUserName, mUserDrawable);
198         }
199     }
200 
201     public interface OnUserInfoChangedListener {
onUserInfoChanged(String name, Drawable picture)202         public void onUserInfoChanged(String name, Drawable picture);
203     }
204 }
205