Class SourceConnector

packages/react-dnd/src/internals/SourceConnector.ts:16–231

}

export class SourceConnector implements Connector {
	public hooks = wrapConnectorHooks({
		dragSource: (
			node: Element | ReactElement | Ref<any>,
			options?: DragSourceOptions,
		) => {
			this.clearDragSource()
			this.dragSourceOptions = options || null
			if (isRef(node)) {
				this.dragSourceRef = node as RefObject<any>
			} else {
				this.dragSourceNode = node
			}
			this.reconnectDragSource()
		},
		dragPreview: (node: any, options?: DragPreviewOptions) => {
			this.clearDragPreview()
			this.dragPreviewOptions = options || null
			if (isRef(node)) {
				this.dragPreviewRef = node
			} else {
				this.dragPreviewNode = node
			}
			this.reconnectDragPreview()
		},
	})
	private handlerId: Identifier | null = null

	// The drop target may either be attached via ref or connect function
	private dragSourceRef: RefObject<any> | null = null
	private dragSourceNode: any
	private dragSourceOptionsInternal: DragSourceOptions | null = null
	private dragSourceUnsubscribe: Unsubscribe | undefined

	// The drag preview may either be attached via ref or connect function
	private dragPreviewRef: RefObject<any> | null = null
	private dragPreviewNode: any
	private dragPreviewOptionsInternal: DragPreviewOptions | null = null
	private dragPreviewUnsubscribe: Unsubscribe | undefined

	private lastConnectedHandlerId: Identifier | null = null
	private lastConnectedDragSource: any = null
	private lastConnectedDragSourceOptions: any = null
	private lastConnectedDragPreview: any = null
	private lastConnectedDragPreviewOptions: any = null

	private readonly backend: Backend

	public constructor(backend: Backend) {
		this.backend = backend
	}

	public receiveHandlerId(newHandlerId: Identifier | null): void {
		if (this.handlerId === newHandlerId) {
			return
		}

		this.handlerId = newHandlerId