1 /*
2  * Copyright (C) 2016 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.internal.app;
18 
19 import static android.app.admin.DevicePolicyResources.Strings.Core.UNLAUNCHABLE_APP_WORK_PAUSED_TITLE;
20 import static android.content.Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS;
21 import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK;
22 
23 import android.app.Activity;
24 import android.app.AlertDialog;
25 import android.app.admin.DevicePolicyManager;
26 import android.content.ComponentName;
27 import android.content.DialogInterface;
28 import android.content.Intent;
29 import android.content.IntentSender;
30 import android.content.pm.ResolveInfo;
31 import android.os.Bundle;
32 import android.os.Handler;
33 import android.os.Looper;
34 import android.os.UserHandle;
35 import android.os.UserManager;
36 import android.telecom.TelecomManager;
37 import android.util.Log;
38 import android.view.Window;
39 
40 import com.android.internal.R;
41 
42 /**
43  * A dialog shown to the user when they try to launch an app from a quiet profile
44  * ({@link UserManager#isQuietModeEnabled(UserHandle)}.
45  */
46 public class UnlaunchableAppActivity extends Activity
47         implements DialogInterface.OnDismissListener, DialogInterface.OnClickListener {
48     private static final String TAG = "UnlaunchableAppActivity";
49 
50     private static final int UNLAUNCHABLE_REASON_QUIET_MODE = 1;
51     private static final String EXTRA_UNLAUNCHABLE_REASON = "unlaunchable_reason";
52 
53     private int mUserId;
54     private int mReason;
55     private IntentSender mTarget;
56     private TelecomManager mTelecomManager;
57 
58     @Override
onCreate(Bundle savedInstanceState)59     protected void onCreate(Bundle savedInstanceState) {
60         super.onCreate(savedInstanceState);
61         // As this activity has nothing to show, we should hide the title bar also
62         // TODO: Use AlertActivity so we don't need to hide title bar and create a dialog
63         requestWindowFeature(Window.FEATURE_NO_TITLE);
64         Intent intent = getIntent();
65         mTelecomManager = getSystemService(TelecomManager.class);
66         mReason = intent.getIntExtra(EXTRA_UNLAUNCHABLE_REASON, -1);
67         mUserId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL);
68         mTarget = intent.getParcelableExtra(Intent.EXTRA_INTENT,
69                 android.content.IntentSender.class);
70 
71         if (mUserId == UserHandle.USER_NULL) {
72             Log.wtf(TAG, "Invalid user id: " + mUserId + ". Stopping.");
73             finish();
74             return;
75         }
76 
77         if (mReason != UNLAUNCHABLE_REASON_QUIET_MODE) {
78             Log.wtf(TAG, "Invalid unlaunchable type: " + mReason);
79             finish();
80             return;
81         }
82 
83         String targetPackageName = intent.getStringExtra(Intent.EXTRA_PACKAGE_NAME);
84         boolean showEmergencyCallButton =
85                 (targetPackageName != null && targetPackageName.equals(
86                         mTelecomManager.getDefaultDialerPackage(UserHandle.of(mUserId))));
87 
88         final AlertDialog.Builder builder;
89         if (showEmergencyCallButton) {
90             builder = new AlertDialog.Builder(this, R.style.AlertDialogWithEmergencyButton);
91             builder.setNeutralButton(R.string.work_mode_emergency_call_button, this);
92         } else {
93             builder = new AlertDialog.Builder(this);
94         }
95         builder.setTitle(getDialogTitle())
96                 .setOnDismissListener(this)
97                 .setPositiveButton(R.string.work_mode_turn_on, this)
98                 .setNegativeButton(R.string.cancel, null);
99 
100         final AlertDialog dialog = builder.create();
101         dialog.create();
102         if (showEmergencyCallButton) {
103             dialog.getWindow().findViewById(R.id.parentPanel).setPadding(0, 0, 0, 30);
104             dialog.getWindow().findViewById(R.id.button3).setOutlineProvider(null);
105         }
106 
107         // Prevents screen overlay attack.
108         getWindow().setHideOverlayWindows(true);
109         dialog.getButton(DialogInterface.BUTTON_POSITIVE).setFilterTouchesWhenObscured(true);
110         dialog.show();
111     }
112 
getDialogTitle()113     private String getDialogTitle() {
114         return getSystemService(DevicePolicyManager.class).getResources().getString(
115                 UNLAUNCHABLE_APP_WORK_PAUSED_TITLE, () -> getString(R.string.work_mode_off_title));
116     }
117 
118     @Override
onDismiss(DialogInterface dialog)119     public void onDismiss(DialogInterface dialog) {
120         finish();
121     }
122 
123     @Override
onClick(DialogInterface dialog, int which)124     public void onClick(DialogInterface dialog, int which) {
125         if (mReason != UNLAUNCHABLE_REASON_QUIET_MODE) {
126             return;
127         }
128         if (which == DialogInterface.BUTTON_POSITIVE) {
129             UserManager userManager = UserManager.get(this);
130             new Handler(Looper.getMainLooper()).post(
131                     () -> userManager.requestQuietModeEnabled(
132                             /* enableQuietMode= */ false, UserHandle.of(mUserId), mTarget));
133         } else if (which == DialogInterface.BUTTON_NEUTRAL) {
134             launchEmergencyDialer();
135         }
136     }
137 
launchEmergencyDialer()138     private void launchEmergencyDialer() {
139         startActivity(mTelecomManager.createLaunchEmergencyDialerIntent(
140                         null /* number*/)
141                 .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
142                         | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
143                         | Intent.FLAG_ACTIVITY_CLEAR_TOP));
144     }
145 
createBaseIntent()146     private static final Intent createBaseIntent() {
147         Intent intent = new Intent();
148         intent.setComponent(new ComponentName("android", UnlaunchableAppActivity.class.getName()));
149         intent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
150         return intent;
151     }
152 
createInQuietModeDialogIntent(int userId)153     public static Intent createInQuietModeDialogIntent(int userId) {
154         Intent intent = createBaseIntent();
155         intent.putExtra(EXTRA_UNLAUNCHABLE_REASON, UNLAUNCHABLE_REASON_QUIET_MODE);
156         intent.putExtra(Intent.EXTRA_USER_HANDLE, userId);
157         return intent;
158     }
159 
createInQuietModeDialogIntent(int userId, IntentSender target, ResolveInfo resolveInfo)160     public static Intent createInQuietModeDialogIntent(int userId, IntentSender target,
161             ResolveInfo resolveInfo) {
162         Intent intent = createInQuietModeDialogIntent(userId);
163         intent.putExtra(Intent.EXTRA_INTENT, target);
164         if (resolveInfo != null) {
165             intent.putExtra(Intent.EXTRA_PACKAGE_NAME, resolveInfo.getComponentInfo().packageName);
166         }
167         return intent;
168     }
169 }
170