1 files changed, 45 insertions, 0 deletions
diff --git a/src/com/android/launcher3/DragSource.java b/src/com/android/launcher3/DragSource.java
new file mode 100644
index 000000000..2ef99ae08
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+++ b/src/com/android/launcher3/DragSource.java
@@ -0,0 +1,45 @@
+/*
+ * 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.android.launcher3;
+
+import android.view.View;
+
+import com.android.launcher3.DropTarget.DragObject;
+
+/**
+ * Interface defining an object that can originate a drag.
+ *
+ */
+public interface DragSource {
+    /**
+     * @return whether items dragged from this source supports
+     */
+    boolean supportsFlingToDelete();
+
+    /**
+     * A callback specifically made back to the source after an item from this source has been flung
+     * to be deleted on a DropTarget.  In such a situation, this method will be called after
+     * onDropCompleted, and more importantly, after the fling animation has completed.
+     */
+    void onFlingToDeleteCompleted();
+
+    /**
+     * A callback made back to the source after an item from this source has been dropped on a
+     * DropTarget.
+     */
+    void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, boolean success);
+}