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 static com.android.launcher3.config.FeatureFlags.ENABLE_OVERVIEW_ACTIONS;
19 import static com.android.quickstep.SysUINavigationMode.removeShelfFromOverview;
20 
21 import android.content.Context;
22 import android.graphics.Rect;
23 import android.view.View;
24 import android.view.ViewGroup;
25 
26 import com.android.launcher3.DeviceProfile;
27 import com.android.launcher3.R;
28 import com.android.launcher3.touch.PagedOrientationHandler;
29 import com.android.quickstep.LauncherActivityInterface;
30 import com.android.quickstep.SysUINavigationMode;
31 
32 public class LayoutUtils {
33 
34     /**
35      * The height for the swipe up motion
36      */
getDefaultSwipeHeight(Context context, DeviceProfile dp)37     public static float getDefaultSwipeHeight(Context context, DeviceProfile dp) {
38         float swipeHeight = dp.allAppsCellHeightPx - dp.allAppsIconTextSizePx;
39         if (SysUINavigationMode.getMode(context) == SysUINavigationMode.Mode.NO_BUTTON) {
40             swipeHeight -= dp.getInsets().bottom;
41         }
42         return swipeHeight;
43     }
44 
getShelfTrackingDistance(Context context, DeviceProfile dp, PagedOrientationHandler orientationHandler)45     public static int getShelfTrackingDistance(Context context, DeviceProfile dp,
46             PagedOrientationHandler orientationHandler) {
47         // Track the bottom of the window.
48         if (ENABLE_OVERVIEW_ACTIONS.get() && removeShelfFromOverview(context)) {
49             Rect taskSize = new Rect();
50             LauncherActivityInterface.INSTANCE.calculateTaskSize(context, dp, taskSize,
51                     orientationHandler);
52             return (dp.heightPx - taskSize.height()) / 2;
53         }
54         int shelfHeight = dp.hotseatBarSizePx + dp.getInsets().bottom;
55         int spaceBetweenShelfAndRecents = (int) context.getResources().getDimension(
56                 R.dimen.task_card_vert_space);
57         return shelfHeight + spaceBetweenShelfAndRecents;
58     }
59 
60     /**
61      * Recursively sets view and all children enabled/disabled.
62      * @param view Top most parent view to change.
63      * @param enabled True = enable, False = disable.
64      */
setViewEnabled(View view, boolean enabled)65     public static void setViewEnabled(View view, boolean enabled) {
66         view.setEnabled(enabled);
67         if (view instanceof ViewGroup) {
68             for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {
69                 setViewEnabled(((ViewGroup) view).getChildAt(i), enabled);
70             }
71         }
72     }
73 }
74