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import { useDragDropContext } from "@thisbeyond/solid-dnd"
import { JSXElement } from "solid-js"
import type { Transformer } from "@thisbeyond/solid-dnd"
export const getDraggableId = (event: unknown): string | undefined => {
if (typeof event !== "object" || event === null) return undefined
if (!("draggable" in event)) return undefined
const draggable = (event as { draggable?: { id?: unknown } }).draggable
if (!draggable) return undefined
return typeof draggable.id === "string" ? draggable.id : undefined
}
export const ConstrainDragXAxis = (): JSXElement => {
const context = useDragDropContext()
if (!context) return <></>
const [, { onDragStart, onDragEnd, addTransformer, removeTransformer }] = context
const transformer: Transformer = {
id: "constrain-x-axis",
order: 100,
callback: (transform) => ({ ...transform, x: 0 }),
}
onDragStart((event) => {
const id = getDraggableId(event)
if (!id) return
addTransformer("draggables", id, transformer)
})
onDragEnd((event) => {
const id = getDraggableId(event)
if (!id) return
removeTransformer("draggables", id, transformer.id)
})
return <></>
}
export const ConstrainDragYAxis = (): JSXElement => {
const context = useDragDropContext()
if (!context) return <></>
const [, { onDragStart, onDragEnd, addTransformer, removeTransformer }] = context
const transformer: Transformer = {
id: "constrain-y-axis",
order: 100,
callback: (transform) => ({ ...transform, y: 0 }),
}
onDragStart((event) => {
const id = getDraggableId(event)
if (!id) return
addTransformer("draggables", id, transformer)
})
onDragEnd((event) => {
const id = getDraggableId(event)
if (!id) return
removeTransformer("draggables", id, transformer.id)
})
return <></>
}
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