1 /*
2  * Copyright (C) 2019 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.uioverrides.states;
17 
18 import static com.android.launcher3.logging.StatsLogManager.LAUNCHER_STATE_BACKGROUND;
19 
20 import com.android.launcher3.DeviceProfile;
21 import com.android.launcher3.Launcher;
22 import com.android.launcher3.R;
23 import com.android.launcher3.util.Themes;
24 
25 /**
26  * State to indicate we are about to launch a recent task. Note that this state is only used when
27  * quick switching from launcher; quick switching from an app uses LauncherSwipeHandler.
28  * @see com.android.quickstep.GestureState.GestureEndTarget#NEW_TASK
29  */
30 public class QuickSwitchState extends BackgroundAppState {
31 
QuickSwitchState(int id)32     public QuickSwitchState(int id) {
33         super(id, LAUNCHER_STATE_BACKGROUND);
34     }
35 
36     @Override
getWorkspaceScaleAndTranslation(Launcher launcher)37     public ScaleAndTranslation getWorkspaceScaleAndTranslation(Launcher launcher) {
38         float shiftRange = launcher.getAllAppsController().getShiftRange();
39         float shiftProgress = getVerticalProgress(launcher) - NORMAL.getVerticalProgress(launcher);
40         float translationY = shiftProgress * shiftRange;
41         return new ScaleAndTranslation(0.9f, 0, translationY);
42     }
43 
44     @Override
getWorkspaceScrimColor(Launcher launcher)45     public int getWorkspaceScrimColor(Launcher launcher) {
46         DeviceProfile dp = launcher.getDeviceProfile();
47         if (dp.isTaskbarPresentInApps) {
48             return launcher.getColor(R.color.taskbar_background);
49         }
50         return Themes.getAttrColor(launcher, R.attr.overviewScrimColor);
51     }
52 
53     @Override
getVerticalProgress(Launcher launcher)54     public float getVerticalProgress(Launcher launcher) {
55         // Don't move all apps shelf while quick-switching (just let it fade).
56         return 1f;
57     }
58 
59     @Override
getVisibleElements(Launcher launcher)60     public int getVisibleElements(Launcher launcher) {
61         return NONE;
62     }
63 
64     @Override
isTaskbarStashed(Launcher launcher)65     public boolean isTaskbarStashed(Launcher launcher) {
66         return !launcher.getDeviceProfile().isTaskbarPresentInApps;
67     }
68 
69     @Override
isTaskbarAlignedWithHotseat(Launcher launcher)70     public boolean isTaskbarAlignedWithHotseat(Launcher launcher) {
71         return false;
72     }
73 }
74