1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
5 * except in compliance with the License. You may obtain a copy of the License at
6 *
7 *      http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software distributed under the
10 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
11 * KIND, either express or implied. See the License for the specific language governing
12 * permissions and limitations under the License.
13 */
14
15package com.android.systemui.tuner;
16
17import android.app.ActivityManager;
18import android.content.BroadcastReceiver;
19import android.content.ComponentName;
20import android.content.Context;
21import android.content.DialogInterface;
22import android.content.DialogInterface.OnClickListener;
23import android.content.Intent;
24import android.content.pm.PackageManager;
25import android.content.pm.PackageManager.NameNotFoundException;
26import android.os.UserHandle;
27import android.provider.Settings;
28
29import static android.provider.Settings.System.SHOW_BATTERY_PERCENT;
30import com.android.systemui.DemoMode;
31import com.android.systemui.Dependency;
32import com.android.systemui.R;
33import com.android.systemui.statusbar.phone.SystemUIDialog;
34
35public abstract class TunerService {
36
37    public static final String ACTION_CLEAR = "com.android.systemui.action.CLEAR_TUNER";
38
39    public abstract void clearAll();
40    public abstract void destroy();
41
42    public abstract String getValue(String setting);
43    public abstract int getValue(String setting, int def);
44    public abstract String getValue(String setting, String def);
45
46    public abstract void setValue(String setting, String value);
47    public abstract void setValue(String setting, int value);
48
49    public abstract void addTunable(Tunable tunable, String... keys);
50    public abstract void removeTunable(Tunable tunable);
51
52    public interface Tunable {
53        void onTuningChanged(String key, String newValue);
54    }
55
56    private static Context userContext(Context context) {
57        try {
58            return context.createPackageContextAsUser(context.getPackageName(), 0,
59                    new UserHandle(ActivityManager.getCurrentUser()));
60        } catch (NameNotFoundException e) {
61            return context;
62        }
63    }
64
65    public static final void setTunerEnabled(Context context, boolean enabled) {
66        userContext(context).getPackageManager().setComponentEnabledSetting(
67                new ComponentName(context, TunerActivity.class),
68                enabled ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED
69                        : PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
70                PackageManager.DONT_KILL_APP);
71    }
72
73    public static final boolean isTunerEnabled(Context context) {
74        return userContext(context).getPackageManager().getComponentEnabledSetting(
75                new ComponentName(context, TunerActivity.class))
76                == PackageManager.COMPONENT_ENABLED_STATE_ENABLED;
77    }
78
79    public static class ClearReceiver extends BroadcastReceiver {
80        @Override
81        public void onReceive(Context context, Intent intent) {
82            if (ACTION_CLEAR.equals(intent.getAction())) {
83                Dependency.get(TunerService.class).clearAll();
84            }
85        }
86    }
87
88    public static final void showResetRequest(final Context context, final Runnable onDisabled) {
89        SystemUIDialog dialog = new SystemUIDialog(context);
90        dialog.setShowForAllUsers(true);
91        dialog.setMessage(R.string.remove_from_settings_prompt);
92        dialog.setButton(DialogInterface.BUTTON_NEGATIVE, context.getString(R.string.cancel),
93                (OnClickListener) null);
94        dialog.setButton(DialogInterface.BUTTON_POSITIVE,
95                context.getString(R.string.guest_exit_guest_dialog_remove), new OnClickListener() {
96            @Override
97            public void onClick(DialogInterface dialog, int which) {
98                // Tell the tuner (in main SysUI process) to clear all its settings.
99                context.sendBroadcast(new Intent(TunerService.ACTION_CLEAR));
100                // Disable access to tuner.
101                TunerService.setTunerEnabled(context, false);
102                // Make them sit through the warning dialog again.
103                Settings.Secure.putInt(context.getContentResolver(),
104                        TunerFragment.SETTING_SEEN_TUNER_WARNING, 0);
105                if (onDisabled != null) {
106                    onDisabled.run();
107                }
108            }
109        });
110        dialog.show();
111    }
112}
113