1 /*
2  * Copyright (C) 2010 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.systemui.statusbar.policy;
18 
19 import com.android.systemui.DemoMode;
20 import com.android.systemui.Dumpable;
21 import com.android.systemui.statusbar.policy.BatteryController.BatteryStateChangeCallback;
22 
23 import java.io.FileDescriptor;
24 import java.io.PrintWriter;
25 
26 public interface BatteryController extends DemoMode, Dumpable,
27         CallbackController<BatteryStateChangeCallback> {
28     /**
29      * Prints the current state of the {@link BatteryController} to the given {@link PrintWriter}.
30      */
dump(FileDescriptor fd, PrintWriter pw, String[] args)31     void dump(FileDescriptor fd, PrintWriter pw, String[] args);
32 
33     /**
34      * Sets if the current device is in power save mode.
35      */
setPowerSaveMode(boolean powerSave)36     void setPowerSaveMode(boolean powerSave);
37 
38     /**
39      * Returns {@code true} if the device is currently in power save mode.
40      */
isPowerSave()41     boolean isPowerSave();
42 
43     /**
44      * Returns {@code true} if AOD was disabled by power saving policies.
45      */
isAodPowerSave()46     default boolean isAodPowerSave() {
47         return isPowerSave();
48     }
49 
50     /**
51      * A listener that will be notified whenever a change in battery level or power save mode
52      * has occurred.
53      */
54     interface BatteryStateChangeCallback {
onBatteryLevelChanged(int level, boolean pluggedIn, boolean charging)55         default void onBatteryLevelChanged(int level, boolean pluggedIn, boolean charging) {}
onPowerSaveChanged(boolean isPowerSave)56         default void onPowerSaveChanged(boolean isPowerSave) {}
57     }
58 }
59