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 android.content.Context; 19 import android.graphics.Rect; 20 import android.view.View; 21 import android.view.ViewGroup; 22 23 import com.android.launcher3.DeviceProfile; 24 import com.android.launcher3.util.DisplayController; 25 import com.android.launcher3.util.NavigationMode; 26 import com.android.quickstep.BaseContainerInterface; 27 import com.android.quickstep.orientation.RecentsPagedOrientationHandler; 28 29 public class LayoutUtils { 30 31 private static final float SQUARE_ASPECT_RATIO_TOLERANCE = 0.05f; 32 33 /** 34 * The height for the swipe up motion 35 */ getDefaultSwipeHeight(Context context, DeviceProfile dp)36 public static float getDefaultSwipeHeight(Context context, DeviceProfile dp) { 37 float swipeHeight = dp.allAppsCellHeightPx - dp.allAppsIconTextSizePx; 38 if (DisplayController.getNavigationMode(context) == NavigationMode.NO_BUTTON) { 39 swipeHeight -= dp.getInsets().bottom; 40 } 41 return swipeHeight; 42 } 43 getShelfTrackingDistance( Context context, DeviceProfile dp, RecentsPagedOrientationHandler orientationHandler, BaseContainerInterface<?, ?> baseContainerInterface)44 public static int getShelfTrackingDistance( 45 Context context, 46 DeviceProfile dp, 47 RecentsPagedOrientationHandler orientationHandler, 48 BaseContainerInterface<?, ?> baseContainerInterface) { 49 // Track the bottom of the window. 50 Rect taskSize = new Rect(); 51 baseContainerInterface.calculateTaskSize(context, dp, taskSize, 52 orientationHandler); 53 return orientationHandler.getDistanceToBottomOfRect(dp, taskSize); 54 } 55 56 /** 57 * Recursively sets view and all children enabled/disabled. 58 * @param view Top most parent view to change. 59 * @param enabled True = enable, False = disable. 60 */ setViewEnabled(View view, boolean enabled)61 public static void setViewEnabled(View view, boolean enabled) { 62 view.setEnabled(enabled); 63 if (view instanceof ViewGroup) { 64 for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) { 65 setViewEnabled(((ViewGroup) view).getChildAt(i), enabled); 66 } 67 } 68 } 69 70 /** 71 * Returns true iff the device's aspect ratio is within 72 * {@link LayoutUtils#SQUARE_ASPECT_RATIO_TOLERANCE} of 1:1 73 */ isAspectRatioSquare(float aspectRatio)74 public static boolean isAspectRatioSquare(float aspectRatio) { 75 return Float.compare(aspectRatio, 1f - SQUARE_ASPECT_RATIO_TOLERANCE) >= 0 76 && Float.compare(aspectRatio, 1f + SQUARE_ASPECT_RATIO_TOLERANCE) <= 0; 77 } 78 } 79