1 /* 2 * Copyright (C) 2014 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 17 package android.view; 18 19 import android.graphics.Rect; 20 import android.os.IBinder; 21 import android.os.Parcel; 22 import android.os.Parcelable; 23 import android.util.Pools; 24 import android.view.accessibility.AccessibilityNodeInfo; 25 26 import java.util.ArrayList; 27 import java.util.List; 28 29 /** 30 * This class represents information about a window from the 31 * window manager to another part of the system. 32 * 33 * @hide 34 */ 35 public class WindowInfo implements Parcelable { 36 private static final int MAX_POOL_SIZE = 10; 37 38 private static final Pools.SynchronizedPool<WindowInfo> sPool = 39 new Pools.SynchronizedPool<WindowInfo>(MAX_POOL_SIZE); 40 41 public int type; 42 public int layer; 43 public IBinder token; 44 public IBinder parentToken; 45 public IBinder activityToken; 46 public boolean focused; 47 public final Rect boundsInScreen = new Rect(); 48 public List<IBinder> childTokens; 49 public CharSequence title; 50 public long accessibilityIdOfAnchor = AccessibilityNodeInfo.UNDEFINED_NODE_ID; 51 public boolean inPictureInPicture; 52 public boolean hasFlagWatchOutsideTouch; 53 WindowInfo()54 private WindowInfo() { 55 /* do nothing - hide constructor */ 56 } 57 obtain()58 public static WindowInfo obtain() { 59 WindowInfo window = sPool.acquire(); 60 if (window == null) { 61 window = new WindowInfo(); 62 } 63 return window; 64 } 65 obtain(WindowInfo other)66 public static WindowInfo obtain(WindowInfo other) { 67 WindowInfo window = obtain(); 68 window.type = other.type; 69 window.layer = other.layer; 70 window.token = other.token; 71 window.parentToken = other.parentToken; 72 window.activityToken = other.activityToken; 73 window.focused = other.focused; 74 window.boundsInScreen.set(other.boundsInScreen); 75 window.title = other.title; 76 window.accessibilityIdOfAnchor = other.accessibilityIdOfAnchor; 77 window.inPictureInPicture = other.inPictureInPicture; 78 window.hasFlagWatchOutsideTouch = other.hasFlagWatchOutsideTouch; 79 80 if (other.childTokens != null && !other.childTokens.isEmpty()) { 81 if (window.childTokens == null) { 82 window.childTokens = new ArrayList<IBinder>(other.childTokens); 83 } else { 84 window.childTokens.addAll(other.childTokens); 85 } 86 } 87 88 return window; 89 } 90 recycle()91 public void recycle() { 92 clear(); 93 sPool.release(this); 94 } 95 96 @Override describeContents()97 public int describeContents() { 98 return 0; 99 } 100 101 @Override writeToParcel(Parcel parcel, int flags)102 public void writeToParcel(Parcel parcel, int flags) { 103 parcel.writeInt(type); 104 parcel.writeInt(layer); 105 parcel.writeStrongBinder(token); 106 parcel.writeStrongBinder(parentToken); 107 parcel.writeStrongBinder(activityToken); 108 parcel.writeInt(focused ? 1 : 0); 109 boundsInScreen.writeToParcel(parcel, flags); 110 parcel.writeCharSequence(title); 111 parcel.writeLong(accessibilityIdOfAnchor); 112 parcel.writeInt(inPictureInPicture ? 1 : 0); 113 parcel.writeInt(hasFlagWatchOutsideTouch ? 1 : 0); 114 115 if (childTokens != null && !childTokens.isEmpty()) { 116 parcel.writeInt(1); 117 parcel.writeBinderList(childTokens); 118 } else { 119 parcel.writeInt(0); 120 } 121 } 122 123 @Override toString()124 public String toString() { 125 StringBuilder builder = new StringBuilder(); 126 builder.append("WindowInfo["); 127 builder.append("title=").append(title); 128 builder.append(", type=").append(type); 129 builder.append(", layer=").append(layer); 130 builder.append(", token=").append(token); 131 builder.append(", bounds=").append(boundsInScreen); 132 builder.append(", parent=").append(parentToken); 133 builder.append(", focused=").append(focused); 134 builder.append(", children=").append(childTokens); 135 builder.append(", accessibility anchor=").append(accessibilityIdOfAnchor); 136 builder.append(", pictureInPicture=").append(inPictureInPicture); 137 builder.append(", watchOutsideTouch=").append(hasFlagWatchOutsideTouch); 138 builder.append(']'); 139 return builder.toString(); 140 } 141 initFromParcel(Parcel parcel)142 private void initFromParcel(Parcel parcel) { 143 type = parcel.readInt(); 144 layer = parcel.readInt(); 145 token = parcel.readStrongBinder(); 146 parentToken = parcel.readStrongBinder(); 147 activityToken = parcel.readStrongBinder(); 148 focused = (parcel.readInt() == 1); 149 boundsInScreen.readFromParcel(parcel); 150 title = parcel.readCharSequence(); 151 accessibilityIdOfAnchor = parcel.readLong(); 152 inPictureInPicture = (parcel.readInt() == 1); 153 hasFlagWatchOutsideTouch = (parcel.readInt() == 1); 154 155 final boolean hasChildren = (parcel.readInt() == 1); 156 if (hasChildren) { 157 if (childTokens == null) { 158 childTokens = new ArrayList<IBinder>(); 159 } 160 parcel.readBinderList(childTokens); 161 } 162 } 163 clear()164 private void clear() { 165 type = 0; 166 layer = 0; 167 token = null; 168 parentToken = null; 169 activityToken = null; 170 focused = false; 171 boundsInScreen.setEmpty(); 172 if (childTokens != null) { 173 childTokens.clear(); 174 } 175 inPictureInPicture = false; 176 hasFlagWatchOutsideTouch = false; 177 } 178 179 public static final @android.annotation.NonNull Parcelable.Creator<WindowInfo> CREATOR = 180 new Creator<WindowInfo>() { 181 @Override 182 public WindowInfo createFromParcel(Parcel parcel) { 183 WindowInfo window = obtain(); 184 window.initFromParcel(parcel); 185 return window; 186 } 187 188 @Override 189 public WindowInfo[] newArray(int size) { 190 return new WindowInfo[size]; 191 } 192 }; 193 } 194