Fix bug with drag visualization and UserFolders.
When dragging an app shortcut, it was possible that we'd show a red rectangle
around a cell occupied by a UserFolder. This shouldn't be possible -- as soon
as that cell becomes the target drop cell, the folder should start handling
the drag and drop events.
Change-Id: I1b7a8b1aa9aeb7e2f1bd51ce8d947c06455e988f
diff --git a/src/com/android/launcher2/DropTarget.java b/src/com/android/launcher2/DropTarget.java
index 72eb330..7e54231 100644
--- a/src/com/android/launcher2/DropTarget.java
+++ b/src/com/android/launcher2/DropTarget.java
@@ -51,6 +51,26 @@
DragView dragView, Object dragInfo);
/**
+ * Allows a DropTarget to delegate drag and drop events to another object.
+ *
+ * Most subclasses will should just return null from this method.
+ *
+ * @param source DragSource where the drag started
+ * @param x X coordinate of the drop location
+ * @param y Y coordinate of the drop location
+ * @param xOffset Horizontal offset with the object being dragged where the original
+ * touch happened
+ * @param yOffset Vertical offset with the object being dragged where the original
+ * touch happened
+ * @param dragView The DragView that's being dragged around on screen.
+ * @param dragInfo Data associated with the object being dragged
+ *
+ * @return The DropTarget to delegate to, or null to not delegate to another object.
+ */
+ DropTarget getDropTargetDelegate(DragSource source, int x, int y, int xOffset, int yOffset,
+ DragView dragView, Object dragInfo);
+
+ /**
* Check if a drop action can occur at, or near, the requested location.
* This may be called repeatedly during a drag, so any calls should return
* quickly.