--- /dev/null
+/*
+ * This is a modified version of a class from the Android Open Source Project.
+ * The original copyright and license information follows.
+ *
+ * Copyright (C) 2008 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 com.blahti.drag;
+
+import android.view.View;
+
+/**
+ * Interface defining an object where drag operations originate.
+ *
+ */
+public interface DragSource {
+
+ /**
+ * This method is called to determine if the DragSource has something to drag.
+ *
+ * @return True if there is something to drag
+ */
+
+ boolean allowDrag ();
+
+ /**
+ * This method is used to tell the DragSource which drag controller it is working with.
+ *
+ * @param dragger DragController
+ */
+
+ void setDragController(DragController dragger);
+
+ /**
+ * This method is called on the completion of the drag operation so the DragSource knows
+ * whether it succeeded or failed.
+ *
+ * @param target View - the view that accepted the dragged object
+ * @param success boolean - true means that the object was dropped successfully
+ */
+
+ void onDropCompleted (View target, boolean success);
+}