1 files changed, 164 insertions, 0 deletions
diff --git a/core/java/android/view/WindowInfo.java b/core/java/android/view/WindowInfo.java
new file mode 100644
index 0000000..7f89044
--- /dev/null
+++ b/core/java/android/view/WindowInfo.java
@@ -0,0 +1,164 @@
+/*
+ * 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(", 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];
+        }
+    };
+}