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  */
16 package com.android.quickstep.util;
17 
18 import android.animation.AnimatorSet;
19 import android.app.ActivityOptions;
20 import android.content.Context;
21 import android.os.Handler;
22 
23 import com.android.launcher3.LauncherAnimationRunner;
24 import com.android.launcher3.WrappedLauncherAnimationRunner;
25 import com.android.systemui.shared.system.ActivityOptionsCompat;
26 import com.android.systemui.shared.system.RemoteAnimationAdapterCompat;
27 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
28 
29 public abstract class RemoteAnimationProvider {
30 
31     LauncherAnimationRunner mAnimationRunner;
32 
createWindowAnimation(RemoteAnimationTargetCompat[] appTargets, RemoteAnimationTargetCompat[] wallpaperTargets)33     public abstract AnimatorSet createWindowAnimation(RemoteAnimationTargetCompat[] appTargets,
34             RemoteAnimationTargetCompat[] wallpaperTargets);
35 
toActivityOptions(Handler handler, long duration, Context context)36     ActivityOptions toActivityOptions(Handler handler, long duration, Context context) {
37         mAnimationRunner = new LauncherAnimationRunner(handler,
38                 false /* startAtFrontOfQueue */) {
39 
40             @Override
41             public void onCreateAnimation(RemoteAnimationTargetCompat[] appTargets,
42                     RemoteAnimationTargetCompat[] wallpaperTargets, AnimationResult result) {
43                 result.setAnimation(createWindowAnimation(appTargets, wallpaperTargets), context);
44             }
45         };
46         final LauncherAnimationRunner wrapper = new WrappedLauncherAnimationRunner(
47                 mAnimationRunner, false /* startAtFrontOfQueue */);
48 
49         return ActivityOptionsCompat.makeRemoteAnimation(
50                 new RemoteAnimationAdapterCompat(wrapper, duration, 0));
51     }
52 
53     /**
54      * @return the target with the lowest opaque layer for a certain app animation, or null.
55      */
findLowestOpaqueLayerTarget( RemoteAnimationTargetCompat[] appTargets, int mode)56     public static RemoteAnimationTargetCompat findLowestOpaqueLayerTarget(
57             RemoteAnimationTargetCompat[] appTargets, int mode) {
58         int lowestLayer = Integer.MAX_VALUE;
59         int lowestLayerIndex = -1;
60         for (int i = appTargets.length - 1; i >= 0; i--) {
61             RemoteAnimationTargetCompat target = appTargets[i];
62             if (target.mode == mode && !target.isTranslucent) {
63                 int layer = target.prefixOrderIndex;
64                 if (layer < lowestLayer) {
65                     lowestLayer = layer;
66                     lowestLayerIndex = i;
67                 }
68             }
69         }
70         return lowestLayerIndex != -1
71                 ? appTargets[lowestLayerIndex]
72                 : null;
73     }
74 }
75