While drag and drop has historically been mostly limited to mouse and touchscreen users, keyboard and screen reader friendly alternatives are important for users who cannot use these interaction methods. Any number of these drop positions can be allowed at the same time and the component can use the types of the dragged items to selectively allow or disallow certain positions.ĭocuments Applications Pictures Downloads Dragged Folder Applications Pictures Downloads Documents Dragged Folder Dragged Folder Pictures Documents Downloads Dragged Folder The "root", "on", and "between" drop positions. This is indicated by rendering a drop indicator between two items when the user drags over the space between them. If the collection allows the user to control the order of the items, it may also support "between" drop positions, allowing the user to insert or move items between other items. It may also support "on" drop positions, such as when dropping into a folder in a list. The collection may support a "root" drop position, allowing items to be dropped on the collection as a whole. Dragged Folder Folder Folder Destination Dragged Folder Visual feedback for a copy drop operation.Ĭollection components built with hooks such as useListBox, useTable, and useGridList, support multiple drop positions. The drag source can also specify what drop operations are allowed for its data, allowing the drop target to decide what operation to perform, using the restrictions set by the drag source as a guideline. The user may also be able to use a modifier key to choose which drop operation to perform, such as Option or Alt to switch from move to copy.
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a plus sign to indicate a copy operation. Many operating systems display drop operations in the form of a cursor change when hovering over a drop target, e.g. cancel – the drag and drop operation is canceled, resulting in no changes made to the source or target.link – a relationship is established between the source and target locations.
copy – the dragged data is copied to the target destination.move – the dragged data is moved from its source location to the target location.There are several drop operations that can be performed as a result of a drag and drop interaction: Pictures Music Documents Videos Applications Folder Downloads Shared Music 2 Drag preview Drag source Drop target For example, when multiple items are dragged, they could be shown as a stack, or with a badge indicating the count. By default, this is a copy of the dragged element, but it can be customized. While dragging, a drag preview is displayed under the user's mouse or finger to indicate the items being dragged. This allows dropping within the application to include richer functionality, but also allows the user to drop in external applications such as email clients or text editors. For example, a drag source may provide the data for a drag in both a custom object format and as plain text. This allows drag and drop to work even between different applications.
Multiple representations of the same object may be provided in different formats for interoperability with various drop targets.
The type of a drag item can be one of the common mime types or a custom type specific to the application. Each drag item includes a type, and the actual data for the item. A drag item may be an object represented by the draggable element, a file, plain text content, etc. The drag source is responsible for providing one or more drag items, which specify the data to be dragged. The source and target may be within the same application, for example two adjacent lists, or in different applications, for example uploading files from the desktop. The initial location is referred to as a drag source, and the final location is referred to as a drop target. Concepts #ĭrag and drop allows a user to move data between two locations. In addition to the standard mouse and touch interactions, React Aria also implements keyboard and screen reader accessible alternatives for drag and drop to enable all users to perform these tasks. It is a flexible, efficient, and intuitive way for users to perform a variety of tasks, and is widely supported across both desktop and mobile operating systems. Introduction #ĭrag and drop is a common UI interaction that allows users to transfer data between two locations by directly moving a visual representation on screen.
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React Aria implements drag and drop for mouse and touch interactions, and provides full keyboard and screen reader accessibility. Drag and drop is an intuitive way for users to transfer data between locations.
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