| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.view; |
| |
| import android.graphics.Rect; |
| import android.os.IBinder; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.util.Pools; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * This class represents information about a window from the |
| * window manager to another part of the system. |
| * |
| * @hide |
| */ |
| public class WindowInfo implements Parcelable { |
| private static final int MAX_POOL_SIZE = 10; |
| |
| private static final Pools.SynchronizedPool<WindowInfo> sPool = |
| new Pools.SynchronizedPool<WindowInfo>(MAX_POOL_SIZE); |
| |
| public int type; |
| public int layer; |
| public IBinder token; |
| public IBinder parentToken; |
| public boolean focused; |
| public final Rect boundsInScreen = new Rect(); |
| public List<IBinder> childTokens; |
| |
| private WindowInfo() { |
| /* do nothing - hide constructor */ |
| } |
| |
| public static WindowInfo obtain() { |
| WindowInfo window = sPool.acquire(); |
| if (window == null) { |
| window = new WindowInfo(); |
| } |
| return window; |
| } |
| |
| public static WindowInfo obtain(WindowInfo other) { |
| WindowInfo window = obtain(); |
| window.type = other.type; |
| window.layer = other.layer; |
| window.token = other.token; |
| window.parentToken = other.parentToken; |
| window.focused = other.focused; |
| window.boundsInScreen.set(other.boundsInScreen); |
| |
| if (other.childTokens != null && !other.childTokens.isEmpty()) { |
| if (window.childTokens == null) { |
| window.childTokens = new ArrayList<IBinder>(other.childTokens); |
| } else { |
| window.childTokens.addAll(other.childTokens); |
| } |
| } |
| |
| return window; |
| } |
| |
| public void recycle() { |
| clear(); |
| sPool.release(this); |
| } |
| |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public void writeToParcel(Parcel parcel, int flags) { |
| parcel.writeInt(type); |
| parcel.writeInt(layer); |
| parcel.writeStrongBinder(token); |
| parcel.writeStrongBinder(parentToken); |
| parcel.writeInt(focused ? 1 : 0); |
| boundsInScreen.writeToParcel(parcel, flags); |
| |
| if (childTokens != null && !childTokens.isEmpty()) { |
| parcel.writeInt(1); |
| parcel.writeBinderList(childTokens); |
| } else { |
| parcel.writeInt(0); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder builder = new StringBuilder(); |
| builder.append("WindowInfo["); |
| builder.append("type=").append(type); |
| builder.append(", layer=").append(layer); |
| builder.append(", token=").append(token); |
| builder.append(", bounds=").append(boundsInScreen); |
| builder.append(", parent=").append(parentToken); |
| builder.append(", focused=").append(focused); |
| builder.append(", children=").append(childTokens); |
| builder.append(']'); |
| return builder.toString(); |
| } |
| |
| private void initFromParcel(Parcel parcel) { |
| type = parcel.readInt(); |
| layer = parcel.readInt(); |
| token = parcel.readStrongBinder(); |
| parentToken = parcel.readStrongBinder(); |
| focused = (parcel.readInt() == 1); |
| boundsInScreen.readFromParcel(parcel); |
| |
| final boolean hasChildren = (parcel.readInt() == 1); |
| if (hasChildren) { |
| if (childTokens == null) { |
| childTokens = new ArrayList<IBinder>(); |
| } |
| parcel.readBinderList(childTokens); |
| } |
| } |
| |
| private void clear() { |
| type = 0; |
| layer = 0; |
| token = null; |
| parentToken = null; |
| focused = false; |
| boundsInScreen.setEmpty(); |
| if (childTokens != null) { |
| childTokens.clear(); |
| } |
| } |
| |
| public static final Parcelable.Creator<WindowInfo> CREATOR = |
| new Creator<WindowInfo>() { |
| @Override |
| public WindowInfo createFromParcel(Parcel parcel) { |
| WindowInfo window = obtain(); |
| window.initFromParcel(parcel); |
| return window; |
| } |
| |
| @Override |
| public WindowInfo[] newArray(int size) { |
| return new WindowInfo[size]; |
| } |
| }; |
| } |