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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.inputmethod.latin.setup;
18 
19 import android.content.BroadcastReceiver;
20 import android.content.ComponentName;
21 import android.content.Context;
22 import android.content.Intent;
23 import android.content.SharedPreferences;
24 import android.content.pm.PackageManager;
25 import android.os.Process;
26 import android.preference.PreferenceManager;
27 import android.util.Log;
28 
29 import com.android.inputmethod.compat.IntentCompatUtils;
30 import com.android.inputmethod.latin.RichInputMethodManager;
31 import com.android.inputmethod.latin.Settings;
32 
33 /**
34  * This class detects the {@link Intent#ACTION_MY_PACKAGE_REPLACED} broadcast intent when this IME
35  * package has been replaced by a newer version of the same package. This class also detects
36  * {@link Intent#ACTION_BOOT_COMPLETED} and {@link Intent#ACTION_USER_INITIALIZE} broadcast intent.
37  *
38  * If this IME has already been installed in the system image and a new version of this IME has
39  * been installed, {@link Intent#ACTION_MY_PACKAGE_REPLACED} is received by this receiver and it
40  * will hide the setup wizard's icon.
41  *
42  * If this IME has already been installed in the data partition and a new version of this IME has
43  * been installed, {@link Intent#ACTION_MY_PACKAGE_REPLACED} is received by this receiver but it
44  * will not hide the setup wizard's icon, and the icon will appear on the launcher.
45  *
46  * If this IME hasn't been installed yet and has been newly installed, no
47  * {@link Intent#ACTION_MY_PACKAGE_REPLACED} will be sent and the setup wizard's icon will appear
48  * on the launcher.
49  *
50  * When the device has been booted, {@link Intent#ACTION_BOOT_COMPLETED} is received by this
51  * receiver and it checks whether the setup wizard's icon should be appeared or not on the launcher
52  * depending on which partition this IME is installed.
53  *
54  * When a multiuser account has been created, {@link Intent#ACTION_USER_INITIALIZE} is received
55  * by this receiver and it checks the whether the setup wizard's icon should be appeared or not on
56  * the launcher depending on which partition this IME is installed.
57  */
58 public final class LauncherIconVisibilityManager extends BroadcastReceiver {
59     private static final String TAG = LauncherIconVisibilityManager.class.getSimpleName();
60 
61     @Override
onReceive(final Context context, final Intent intent)62     public void onReceive(final Context context, final Intent intent) {
63         if (shouldHandleThisIntent(intent, context)) {
64             updateSetupWizardIconVisibility(context);
65         }
66 
67         // The process that hosts this broadcast receiver is invoked and remains alive even after
68         // 1) the package has been re-installed, 2) the device has been booted,
69         // 3) a multiuser has been created.
70         // There is no good reason to keep the process alive if this IME isn't a current IME.
71         final boolean isCurrentImeOfCurrentUser;
72         if (RichInputMethodManager.isInputMethodManagerValidForUserOfThisProcess(context)) {
73             RichInputMethodManager.init(context);
74             isCurrentImeOfCurrentUser = SetupActivity.isThisImeCurrent(context);
75         } else {
76             isCurrentImeOfCurrentUser = false;
77         }
78 
79         if (!isCurrentImeOfCurrentUser) {
80             final int myPid = Process.myPid();
81             Log.i(TAG, "Killing my process: pid=" + myPid);
82             Process.killProcess(myPid);
83         }
84     }
85 
shouldHandleThisIntent(final Intent intent, final Context context)86     private static boolean shouldHandleThisIntent(final Intent intent, final Context context) {
87         final String action = intent.getAction();
88         if (Intent.ACTION_MY_PACKAGE_REPLACED.equals(action)) {
89             Log.i(TAG, "Package has been replaced: " + context.getPackageName());
90             return true;
91         } else if (Intent.ACTION_BOOT_COMPLETED.equals(action)) {
92             Log.i(TAG, "Boot has been completed");
93             return true;
94         } else if (IntentCompatUtils.has_ACTION_USER_INITIALIZE(intent)) {
95             Log.i(TAG, "User initialize");
96             return true;
97         }
98         return false;
99     }
100 
updateSetupWizardIconVisibility(final Context context)101     public static void updateSetupWizardIconVisibility(final Context context) {
102         final ComponentName setupWizardActivity = new ComponentName(context, SetupActivity.class);
103         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
104         final boolean stateHasSet;
105         if (Settings.readShowSetupWizardIcon(prefs, context)) {
106             stateHasSet = setActivityState(context, setupWizardActivity,
107                     PackageManager.COMPONENT_ENABLED_STATE_ENABLED);
108             Log.i(TAG, (stateHasSet ? "Enable activity: " : "Activity has already been enabled: ")
109                     + setupWizardActivity);
110         } else {
111             stateHasSet = setActivityState(context, setupWizardActivity,
112                     PackageManager.COMPONENT_ENABLED_STATE_DISABLED);
113             Log.i(TAG, (stateHasSet ? "Disable activity: " : "Activity has already been disabled: ")
114                     + setupWizardActivity);
115         }
116     }
117 
setActivityState(final Context context, final ComponentName activityComponent, final int activityState)118     private static boolean setActivityState(final Context context,
119             final ComponentName activityComponent, final int activityState) {
120         final PackageManager pm = context.getPackageManager();
121         final int activityComponentState = pm.getComponentEnabledSetting(activityComponent);
122         if (activityComponentState == activityState) {
123             return false;
124         }
125         pm.setComponentEnabledSetting(
126                 activityComponent, activityState, PackageManager.DONT_KILL_APP);
127         return true;
128     }
129 }
130