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leaflet fork for copy edit / bug fixes forked from leaflet.pub/leaflet
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2.0 kB · 74 lines
TypeScript
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475import { useCallback } from "react";import { useReplicache } from "src/replicache";import { generateKeyBetween } from "fractional-indexing";import { addImage } from "src/utils/addImage";import { useEntitySetContext } from "components/EntitySetProvider";import { v7 } from "uuid";
export const useHandleDrop = (params: { parent: string; position: string | null; nextPosition: string | null;}) => { let { rep } = useReplicache(); let entity_set = useEntitySetContext();
return useCallback( async (e: React.DragEvent) => { e.preventDefault(); e.stopPropagation();
if (!rep) return;
const files = e.dataTransfer.files; if (!files || files.length === 0) return;
// Filter for image files only const imageFiles = Array.from(files).filter((file) => file.type.startsWith("image/"), );
if (imageFiles.length === 0) return;
let currentPosition = params.position;
// Calculate positions for all images first const imageBlocks = imageFiles.map((file) => { const entity = v7(); const position = generateKeyBetween( currentPosition, params.nextPosition, ); currentPosition = position; return { file, entity, position }; });
// Create all blocks in parallel await Promise.all( imageBlocks.map((block) => rep.mutate.addBlock({ parent: params.parent, factID: v7(), permission_set: entity_set.set, type: "image", position: block.position, newEntityID: block.entity, }), ), );
// Upload all images in parallel await Promise.all( imageBlocks.map((block) => addImage(block.file, rep, { entityID: block.entity, attribute: "block/image", }), ), );
return true; }, [rep, params.position, params.nextPosition, params.parent, entity_set.set], );};