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import { useState, useRef } from "react";
interface UseDragDropOptions {
onDrop?: (files: FileList) => void;
}
// Helper function to check if drag contains files from external sources (not internal app drags)
const containsFiles = (dataTransfer: DataTransfer): boolean => {
// Check if this is an internal app drag (media item)
if (dataTransfer.types.includes("application/x-media-item")) {
return false;
}
// Only show overlay for external file drags
return dataTransfer.types.includes("Files");
};
export function useDragDrop(options: UseDragDropOptions = {}) {
const [isDragOver, setIsDragOver] = useState(false);
const dragCounterRef = useRef(0);
const handleDragEnter = (e: React.DragEvent) => {
e.preventDefault();
// Only handle external file drags, not internal app element drags
if (!containsFiles(e.dataTransfer)) {
return;
}
dragCounterRef.current += 1;
if (!isDragOver) {
setIsDragOver(true);
}
};
const handleDragOver = (e: React.DragEvent) => {
e.preventDefault();
// Only handle file drags
if (!containsFiles(e.dataTransfer)) {
return;
}
};
const handleDragLeave = (e: React.DragEvent) => {
e.preventDefault();
// Only handle file drags
if (!containsFiles(e.dataTransfer)) {
return;
}
dragCounterRef.current -= 1;
if (dragCounterRef.current === 0) {
setIsDragOver(false);
}
};
const handleDrop = (e: React.DragEvent) => {
e.preventDefault();
setIsDragOver(false);
dragCounterRef.current = 0;
// Only handle file drops
if (
options.onDrop &&
e.dataTransfer.files &&
containsFiles(e.dataTransfer)
) {
options.onDrop(e.dataTransfer.files);
}
};
const dragProps = {
onDragEnter: handleDragEnter,
onDragOver: handleDragOver,
onDragLeave: handleDragLeave,
onDrop: handleDrop,
};
return {
isDragOver,
dragProps,
};
}
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