RICH DRAG DROP USER INTERFACE

摘要

In an electronic file system, preview information is provided to the user during a drag operation of a selected object onto a target object. The information indicates what type(s) of action is to be taken should the selected object be dropped onto the target object. The action(s) to be taken may depend upon the type of the selected object and/or the type of the target object. For example, where the selected object is an item and the target object is a persisted auto-list, the action may include adding, removing, or modifying one or more properties of the selected object to conform to one or more criteria defined by the persisted auto-list. Also, numerical feedback may be provided to the user where multiple objects are selected. For example, where seven objects are selected, the textual number “7” may appear next to the cursor.

主权项

1. One or more computer-readable storage device having computer-executable instructions embodied thereon that, when executed by a computing device, cause the computing device to:
receive a first user input via a graphical user interface in a drag operation to drag an object to a main object with a plurality of child objects that are not displayed on the graphical user interface at a beginning of the drag operation; in response to the object being dragged within a first threshold distance of the main object, display the plurality of child objects on the graphical user interface; in response to the object being dragged within a second threshold distance of a child object of the plurality of child objects, display a plurality of indications to the user based on a predefined relationship between the object and the child object, the plurality of indications representing actions that will take place in response to dropping the object onto the child object; receive a second user input via the graphical user interface in a drop operation to drop the object to child object; and perform the actions in response to the drop operation.