UserInfoController.java revision 4d75c079f35d85b687d8349e5e2940447d01198e 
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
17package com.android.systemui.statusbar.policy;
18
19import android.app.ActivityManagerNative;
20import android.bluetooth.BluetoothAdapter;
21import android.content.BroadcastReceiver;
22import android.content.Context;
23import android.content.Intent;
24import android.content.IntentFilter;
25import android.content.pm.PackageManager;
26import android.content.pm.UserInfo;
27import android.database.Cursor;
28import android.graphics.Bitmap;
29import android.graphics.BitmapShader;
30import android.graphics.Canvas;
31import android.graphics.Matrix;
32import android.graphics.Paint;
33import android.graphics.PorterDuff;
34import android.graphics.PorterDuffXfermode;
35import android.graphics.Rect;
36import android.graphics.RectF;
37import android.graphics.Shader;
38import android.graphics.drawable.BitmapDrawable;
39import android.graphics.drawable.Drawable;
40import android.hardware.display.DisplayManager;
41import android.os.AsyncTask;
42import android.os.RemoteException;
43import android.os.UserHandle;
44import android.os.UserManager;
45import android.provider.ContactsContract;
46import android.security.KeyChain;
47import android.util.Log;
48import android.util.Pair;
49
50import com.android.internal.view.RotationPolicy;
51import com.android.systemui.BitmapHelper;
52import com.android.systemui.R;
53
54import java.util.ArrayList;
55import java.util.concurrent.CopyOnWriteArrayList;
56
57public final class UserInfoController {
58
59    private static final String TAG = "UserInfoController";
60
61    private final Context mContext;
62    private final ArrayList<OnUserInfoChangedListener> mCallbacks =
63            new ArrayList<OnUserInfoChangedListener>();
64    private AsyncTask<Void, Void, Pair<String, Drawable>> mUserInfoTask;
65
66    private boolean mUseDefaultAvatar;
67    private String mUserName;
68    private Drawable mUserDrawable;
69
70    public UserInfoController(Context context) {
71        mContext = context;
72        IntentFilter filter = new IntentFilter();
73        filter.addAction(Intent.ACTION_USER_SWITCHED);
74        filter.addAction(Intent.ACTION_CONFIGURATION_CHANGED);
75        mContext.registerReceiver(mReceiver, filter);
76
77        IntentFilter profileFilter = new IntentFilter();
78        profileFilter.addAction(ContactsContract.Intents.ACTION_PROFILE_CHANGED);
79        profileFilter.addAction(Intent.ACTION_USER_INFO_CHANGED);
80        mContext.registerReceiverAsUser(mProfileReceiver, UserHandle.ALL, profileFilter,
81                null, null);
82    }
83
84    public void addListener(OnUserInfoChangedListener callback) {
85        mCallbacks.add(callback);
86    }
87
88    private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
89        @Override
90        public void onReceive(Context context, Intent intent) {
91            final String action = intent.getAction();
92            if (Intent.ACTION_USER_SWITCHED.equals(action)) {
93                reloadUserInfo();
94            } else if (Intent.ACTION_CONFIGURATION_CHANGED.equals(action)) {
95                if (mUseDefaultAvatar) {
96                    reloadUserInfo();
97                }
98            }
99        }
100    };
101
102    private final BroadcastReceiver mProfileReceiver = new BroadcastReceiver() {
103        @Override
104        public void onReceive(Context context, Intent intent) {
105            final String action = intent.getAction();
106            if (ContactsContract.Intents.ACTION_PROFILE_CHANGED.equals(action) ||
107                    Intent.ACTION_USER_INFO_CHANGED.equals(action)) {
108                try {
109                    final int currentUser = ActivityManagerNative.getDefault().getCurrentUser().id;
110                    final int changedUser =
111                            intent.getIntExtra(Intent.EXTRA_USER_HANDLE, getSendingUserId());
112                    if (changedUser == currentUser) {
113                        reloadUserInfo();
114                    }
115                } catch (RemoteException e) {
116                    Log.e(TAG, "Couldn't get current user id for profile change", e);
117                }
118            }
119        }
120    };
121
122    public void reloadUserInfo() {
123        if (mUserInfoTask != null) {
124            mUserInfoTask.cancel(false);
125            mUserInfoTask = null;
126        }
127        queryForUserInformation();
128    }
129
130    private void queryForUserInformation() {
131        Context currentUserContext;
132        UserInfo userInfo;
133        try {
134            userInfo = ActivityManagerNative.getDefault().getCurrentUser();
135            currentUserContext = mContext.createPackageContextAsUser("android", 0,
136                    new UserHandle(userInfo.id));
137        } catch (PackageManager.NameNotFoundException e) {
138            Log.e(TAG, "Couldn't create user context", e);
139            throw new RuntimeException(e);
140        } catch (RemoteException e) {
141            Log.e(TAG, "Couldn't get user info", e);
142            throw new RuntimeException(e);
143        }
144        final int userId = userInfo.id;
145        final String userName = userInfo.name;
146        final int avatarSize
147                = mContext.getResources().getDimensionPixelSize(R.dimen.max_avatar_size);
148
149        final Context context = currentUserContext;
150        mUserInfoTask = new AsyncTask<Void, Void, Pair<String, Drawable>>() {
151            @Override
152            protected Pair<String, Drawable> doInBackground(Void... params) {
153                final UserManager um = UserManager.get(mContext);
154
155                // Fall back to the UserManager nickname if we can't read the name from the local
156                // profile below.
157                String name = userName;
158                Drawable avatar = null;
159                Bitmap rawAvatar = um.getUserIcon(userId);
160                if (rawAvatar != null) {
161                    avatar = new BitmapDrawable(mContext.getResources(),
162                            BitmapHelper.createCircularClip(rawAvatar, avatarSize, avatarSize));
163                } else {
164                    avatar = mContext.getResources().getDrawable(R.drawable.ic_account_circle);
165                    mUseDefaultAvatar = true;
166                }
167
168                // If it's a single-user device, get the profile name, since the nickname is not
169                // usually valid
170                if (um.getUsers().size() <= 1) {
171                    // Try and read the display name from the local profile
172                    final Cursor cursor = context.getContentResolver().query(
173                            ContactsContract.Profile.CONTENT_URI, new String[] {
174                            ContactsContract.CommonDataKinds.Phone._ID, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME},
175                            null, null, null);
176                    if (cursor != null) {
177                        try {
178                            if (cursor.moveToFirst()) {
179                                name = cursor.getString(cursor.getColumnIndex(
180                                        ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
181                            }
182                        } finally {
183                            cursor.close();
184                        }
185                    }
186                }
187                return new Pair<String, Drawable>(name, avatar);
188            }
189
190            @Override
191            protected void onPostExecute(Pair<String, Drawable> result) {
192                mUserName = result.first;
193                mUserDrawable = result.second;
194                mUserInfoTask = null;
195                notifyChanged();
196            }
197        };
198        mUserInfoTask.execute();
199    }
200
201    private void notifyChanged() {
202        for (OnUserInfoChangedListener listener : mCallbacks) {
203            listener.onUserInfoChanged(mUserName, mUserDrawable);
204        }
205    }
206
207    public interface OnUserInfoChangedListener {
208        public void onUserInfoChanged(String name, Drawable picture);
209    }
210}
211