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.uioverrides.states;
17 
18 import static com.android.launcher3.logging.StatsLogManager.LAUNCHER_STATE_OVERVIEW;
19 
20 import android.content.Context;
21 import android.graphics.Rect;
22 
23 import com.android.launcher3.Flags;
24 import com.android.launcher3.Launcher;
25 import com.android.launcher3.LauncherState;
26 import com.android.quickstep.views.RecentsView;
27 
28 /**
29  * An Overview state that shows the current task in a modal fashion. Modal state is where the
30  * current task is shown on its own without other tasks visible.
31  */
32 public class OverviewModalTaskState extends OverviewState {
33 
34     private static final int STATE_FLAGS =
35             FLAG_DISABLE_RESTORE | FLAG_RECENTS_VIEW_VISIBLE | FLAG_WORKSPACE_INACCESSIBLE;
36 
OverviewModalTaskState(int id)37     public OverviewModalTaskState(int id) {
38         super(id, LAUNCHER_STATE_OVERVIEW, STATE_FLAGS);
39     }
40 
41     @Override
getTransitionDuration(Context launcher, boolean isToState)42     public int getTransitionDuration(Context launcher, boolean isToState) {
43         return 300;
44     }
45 
46     @Override
getVisibleElements(Launcher launcher)47     public int getVisibleElements(Launcher launcher) {
48         return OVERVIEW_ACTIONS | CLEAR_ALL_BUTTON;
49     }
50 
51     @Override
getOverviewScaleAndOffset(Launcher launcher)52     public float[] getOverviewScaleAndOffset(Launcher launcher) {
53         return getOverviewScaleAndOffsetForModalState(launcher.getOverviewPanel());
54     }
55 
56     @Override
getOverviewModalness()57     public float getOverviewModalness() {
58         return 1.0f;
59     }
60 
61     @Override
onBackInvoked(Launcher launcher)62     public void onBackInvoked(Launcher launcher) {
63         launcher.getStateManager().goToState(LauncherState.OVERVIEW);
64     }
65 
66     @Override
isTaskbarStashed(Launcher launcher)67     public boolean isTaskbarStashed(Launcher launcher) {
68         if (Flags.enableGridOnlyOverview()) {
69             return true;
70         }
71         return super.isTaskbarStashed(launcher);
72     }
73 
getOverviewScaleAndOffsetForModalState(RecentsView recentsView)74     public static float[] getOverviewScaleAndOffsetForModalState(RecentsView recentsView) {
75         Rect taskSize = recentsView.getSelectedTaskBounds();
76         Rect modalTaskSize = new Rect();
77         recentsView.getModalTaskSize(modalTaskSize);
78 
79         float scale = Math.min((float) modalTaskSize.height() / taskSize.height(),
80                 (float) modalTaskSize.width() / taskSize.width());
81 
82         return new float[] {scale, NO_OFFSET};
83     }
84 }
85