1/*
2 * Copyright (C) 2018 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 */
16package com.android.quickstep;
17
18import android.annotation.TargetApi;
19import android.os.Build;
20import android.support.annotation.IntDef;
21import android.view.Choreographer;
22import android.view.MotionEvent;
23
24import java.lang.annotation.Retention;
25import java.lang.annotation.RetentionPolicy;
26import java.util.function.Consumer;
27
28@TargetApi(Build.VERSION_CODES.O)
29@FunctionalInterface
30public interface TouchConsumer extends Consumer<MotionEvent> {
31
32    @IntDef(flag = true, value = {
33            INTERACTION_NORMAL,
34            INTERACTION_QUICK_SCRUB
35    })
36    @Retention(RetentionPolicy.SOURCE)
37    @interface InteractionType {}
38    int INTERACTION_NORMAL = 0;
39    int INTERACTION_QUICK_SCRUB = 1;
40
41    default void reset() { }
42
43    default void updateTouchTracking(@InteractionType int interactionType) { }
44
45    default void onQuickScrubEnd() { }
46
47    default void onQuickScrubProgress(float progress) { }
48
49    default void onQuickStep(MotionEvent ev) { }
50
51    default void onCommand(int command) { }
52
53    /**
54     * Called on the binder thread to allow the consumer to process the motion event before it is
55     * posted on a handler thread.
56     */
57    default void preProcessMotionEvent(MotionEvent ev) { }
58
59    default Choreographer getIntrimChoreographer(MotionEventQueue queue) {
60        return null;
61    }
62
63    default void deferInit() { }
64
65    default boolean deferNextEventToMainThread() {
66        return false;
67    }
68
69    default boolean forceToLauncherConsumer() {
70        return false;
71    }
72
73    default void onShowOverviewFromAltTab() {}
74}
75