Drag and drop

Description ​

Drag and drop is a component that allows user to move elements within the interface, changing their order and sometimes their properties.

The component imitates the physical dragging of objects, and two essential considerations for this are:

• Clearly indicating which interface elements can be dragged and where.
• Providing visual cues during dragging to show that the element is being moved and where it can be placed.

Component composition ​

DnD is a container that wraps the necessary area for drag and drop functionality. The DropZone is where the element can be dropped, and the Draggable is the element you can move.

Appearance ​

Icon for identification of the possibility to drag the object ​

When hovering over a draggable element, it's recommended to display the MoveAlt icon, which should use the --icon-secondary-neutral token for its color.

Shadow of the object which can be dragged ​

--box-shadow-dnd token is used for the shadow.

Area for dragging ​

The area for dragging is where you can click and hold the mouse or use the keyboard to move a large object, like a card or table row. We recommend using the dotted pattern that appears when user hovers over the area or use the Tab key to navigate to the element. This pattern can be placed both horizontally, as in the case of cards, and vertically, as in table rows.

Area for dropping ​

By default, the element's placement area is marked with a dashed border. If user hovers over this area, its styles should remain unchanged to avoid giving the impression that it is clickable.

Use border: 1px dashed var(--border-primary) for border styles.

Area highlighting ​

When the object is dragged to the area where the element can be placed, area must be highlighted.

Use --bg-primary-neutral-hover token for background-color and border: 1px dashed var(--border-primary) for border styles.

Where to use ​

Where to use drag and drop component

Component	Appearance example
Accordion
Card
Table
TabPanel
Select/Multiselect

Interaction ​

Cursor ​

When dragging either a clickable or non-clickable element, a long click on any part of the element will change the cursor to a "move" cursor, indicating that dragging has begun.

States of draggable element ​

When dragging, the axis isn’t restricted, allowing the element to be moved anywhere on the page but only added to certain areas.

States of draggable element

State	Appearance example	Description
Default		Don’t show the MoveAlt icon and pattern with dots in default state.
Hover		If the element is hovered over, a MoveAlt icon or pattern with dots is displayed, indicating that the component can be moved. If the MoveAlt icon is hovered over, the cursor changes to move.
dragging		The dragged object changes its box-shadow to the --box-shadow-dnd token.
no-drop		If the drop zone under the dragged object is unavailable, the cursor changes to not-allowed.

States of droppable area ​

States of droppable area

State	Appearance example	Description
Default		By default, the area where the element can be placed is marked with a dashed border. You can place text inside this area to describe what can be dropped there, using the secondary text color (--text-secondary) that is appropriate for the context.
Hover		The border color of the area where an object can be dragged isn’t changed when hovered over.
dragging		Hovering over the area where an element can be dropped changes its color. When dragging an object in a list of similar objects, they are separated, and the drop zone changes the background color to --bg-secondary-neutral-hover.
no-drop		If the drop zone under the dragged object is unavailable, the cursor changes to not-allowed.

Usage in UX/UI ​

This component imitates physically dragging objects, so keep the following in mind when implementing it:

• Visually indicate that the element is draggable using icons or text.
• Display the area where the element can be placed.
• Avoid placing the draggable element and its drop area too far apart.

Note that short and long clicks have different meanings, with long clicks used for clickable draggable objects.

Apply the required styles to show that an element is being dragged during the DragEvent.