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