1 files changed, 55 insertions, 0 deletions
diff --git a/core/java/android/content/UndoOwner.java b/core/java/android/content/UndoOwner.java
new file mode 100644
index 0000000..a279de6
--- /dev/null
+++ b/core/java/android/content/UndoOwner.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2013 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.content;
+
+/**
+ * Representation of an owner of {@link UndoOperation} objects in an {@link UndoManager}.
+ */
+public class UndoOwner {
+    final String mTag;
+
+    UndoManager mManager;
+    Object mData;
+    int mOpCount;
+
+    // For saving/restoring state.
+    int mStateSeq;
+    int mSavedIdx;
+
+    UndoOwner(String tag) {
+        mTag = tag;
+    }
+
+    /**
+     * Return the unique tag name identifying this owner.  This is the tag
+     * supplied to {@link UndoManager#getOwner(String, Object) UndoManager.getOwner}
+     * and is immutable.
+     */
+    public String getTag() {
+        return mTag;
+    }
+
+    /**
+     * Return the actual data object of the owner.  This is the data object
+     * supplied to {@link UndoManager#getOwner(String, Object) UndoManager.getOwner}.  An
+     * owner may have a null data if it was restored from a previously saved state with
+     * no getOwner call to associate it with its data.
+     */
+    public Object getData() {
+        return mData;
+    }
+}