1 /*
2  * Copyright (C) 2020 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.launcher3.states;
17 
18 import static com.android.launcher3.Flags.enableScalingRevealHomeAnimation;
19 import static com.android.launcher3.logging.StatsLogManager.LAUNCHER_STATE_HOME;
20 
21 import android.content.Context;
22 
23 import androidx.core.graphics.ColorUtils;
24 
25 import com.android.launcher3.Launcher;
26 import com.android.launcher3.LauncherState;
27 import com.android.launcher3.R;
28 import com.android.launcher3.util.Themes;
29 
30 /**
31  * Scale down workspace/hotseat to hint at going to either overview (on pause) or first home screen.
32  */
33 public class HintState extends LauncherState {
34 
35     private static final int STATE_FLAGS = FLAG_WORKSPACE_INACCESSIBLE | FLAG_DISABLE_RESTORE
36             | FLAG_HAS_SYS_UI_SCRIM;
37 
38     public static final float DEPTH_5_PERCENT = 0.05f;
39 
HintState(int id)40     public HintState(int id) {
41         this(id, LAUNCHER_STATE_HOME);
42     }
43 
HintState(int id, int statsLogOrdinal)44     public HintState(int id, int statsLogOrdinal) {
45         super(id, statsLogOrdinal, STATE_FLAGS);
46     }
47 
48     @Override
getTransitionDuration(Context context, boolean isToState)49     public int getTransitionDuration(Context context, boolean isToState) {
50         return 80;
51     }
52 
53     @Override
getDepthUnchecked(Context context)54     protected float getDepthUnchecked(Context context) {
55         if (enableScalingRevealHomeAnimation()) {
56             return DEPTH_5_PERCENT;
57         } else {
58             return 0.15f;
59         }
60     }
61 
62     @Override
getWorkspaceScrimColor(Launcher launcher)63     public int getWorkspaceScrimColor(Launcher launcher) {
64         return ColorUtils.setAlphaComponent(
65                 Themes.getAttrColor(launcher, R.attr.overviewScrimColor), 100);
66     }
67 
68     @Override
getWorkspaceScaleAndTranslation(Launcher launcher)69     public ScaleAndTranslation getWorkspaceScaleAndTranslation(Launcher launcher) {
70         return new ScaleAndTranslation(0.92f, 0, 0);
71     }
72 }
73