1/*
2 * Copyright (C) 2015 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.server.telecom;
18
19import android.content.Context;
20import android.content.pm.PackageManager;
21import android.content.pm.UserInfo;
22import android.media.AudioManager;
23import android.media.RingtoneManager;
24import android.media.Ringtone;
25import android.net.Uri;
26import android.os.UserHandle;
27import android.os.UserManager;
28import android.provider.Settings;
29import android.telecom.PhoneAccount;
30import android.text.TextUtils;
31
32import com.android.internal.annotations.VisibleForTesting;
33import com.android.internal.telephony.CallerInfo;
34
35import java.util.List;
36
37/**
38 * Uses the incoming {@link Call}'s ringtone URI (obtained by the Contact Lookup) to obtain a
39 * {@link Ringtone} from the {@link RingtoneManager} that can be played by the system during an
40 * incoming call. If the ringtone URI is null, use the default Ringtone for the active user.
41 */
42@VisibleForTesting
43public class RingtoneFactory {
44
45    private final Context mContext;
46    private final CallsManager mCallsManager;
47
48    public RingtoneFactory(CallsManager callsManager, Context context) {
49        mContext = context;
50        mCallsManager = callsManager;
51    }
52
53    public Ringtone getRingtone(Call incomingCall) {
54        // Use the default ringtone of the work profile if the contact is a work profile contact.
55        Context userContext = isWorkContact(incomingCall) ?
56                getWorkProfileContextForUser(mCallsManager.getCurrentUserHandle()) :
57                getContextForUserHandle(mCallsManager.getCurrentUserHandle());
58        Uri ringtoneUri = incomingCall.getRingtone();
59        Ringtone ringtone = null;
60
61        if(ringtoneUri != null && userContext != null) {
62            // Ringtone URI is explicitly specified. First, try to create a Ringtone with that.
63            ringtone = RingtoneManager.getRingtone(userContext, ringtoneUri);
64        }
65        if(ringtone == null) {
66            // Contact didn't specify ringtone or custom Ringtone creation failed. Get default
67            // ringtone for user or profile.
68            ringtone = RingtoneManager.getRingtone(
69                    hasDefaultRingtoneForUser(userContext) ? userContext : mContext,
70                    Settings.System.DEFAULT_RINGTONE_URI);
71        }
72        if (ringtone != null) {
73            ringtone.setStreamType(AudioManager.STREAM_RING);
74        }
75        return ringtone;
76    }
77
78    private Context getWorkProfileContextForUser(UserHandle userHandle) {
79        // UserManager.getEnabledProfiles returns the enabled profiles along with the user's handle
80        // itself (so we must filter out the user).
81        List<UserInfo> profiles = UserManager.get(mContext).getEnabledProfiles(
82                userHandle.getIdentifier());
83        UserInfo workprofile = null;
84        int managedProfileCount = 0;
85        for (UserInfo profile : profiles) {
86            UserHandle profileUserHandle = profile.getUserHandle();
87            if (profileUserHandle != userHandle && profile.isManagedProfile()) {
88                managedProfileCount++;
89                workprofile = profile;
90            }
91        }
92        // There may be many different types of profiles, so only count Managed (Work) Profiles.
93        if(managedProfileCount == 1) {
94            return getContextForUserHandle(workprofile.getUserHandle());
95        }
96        // There are multiple managed profiles for the associated user and we do not have enough
97        // info to determine which profile is the work profile. Just use the default.
98        return null;
99    }
100
101    private Context getContextForUserHandle(UserHandle userHandle) {
102        if(userHandle == null) {
103            return null;
104        }
105        try {
106            return mContext.createPackageContextAsUser(mContext.getPackageName(), 0, userHandle);
107        } catch (PackageManager.NameNotFoundException e) {
108            Log.w("RingtoneFactory", "Package name not found: " + e.getMessage());
109        }
110        return null;
111    }
112
113    private boolean hasDefaultRingtoneForUser(Context userContext) {
114        if(userContext == null) {
115            return false;
116        }
117        return !TextUtils.isEmpty(Settings.System.getString(userContext.getContentResolver(),
118                Settings.System.RINGTONE));
119    }
120
121    private boolean isWorkContact(Call incomingCall) {
122        CallerInfo contactCallerInfo = incomingCall.getCallerInfo();
123        return (contactCallerInfo != null) &&
124                (contactCallerInfo.userType == CallerInfo.USER_TYPE_WORK);
125    }
126}
127