excalidraw/src/components/LibraryUnit.tsx

120 lines
3.2 KiB
TypeScript

import clsx from "clsx";
import oc from "open-color";
import { useEffect, useRef, useState } from "react";
import { MIME_TYPES } from "../constants";
import { useIsMobile } from "../components/App";
import { exportToSvg } from "../scene/export";
import { BinaryFiles, LibraryItem } from "../types";
import "./LibraryUnit.scss";
import { CheckboxItem } from "./CheckboxItem";
const PLUS_ICON = (
<svg viewBox="0 0 1792 1792">
<path
d="M1600 736v192c0 26.667-9.33 49.333-28 68-18.67 18.67-41.33 28-68 28h-416v416c0 26.67-9.33 49.33-28 68s-41.33 28-68 28H800c-26.667 0-49.333-9.33-68-28s-28-41.33-28-68v-416H288c-26.667 0-49.333-9.33-68-28-18.667-18.667-28-41.333-28-68V736c0-26.667 9.333-49.333 28-68s41.333-28 68-28h416V224c0-26.667 9.333-49.333 28-68s41.333-28 68-28h192c26.67 0 49.33 9.333 68 28s28 41.333 28 68v416h416c26.67 0 49.33 9.333 68 28s28 41.333 28 68Z"
style={{
stroke: "#fff",
strokeWidth: 140,
}}
transform="translate(0 64)"
/>
</svg>
);
export const LibraryUnit = ({
id,
elements,
files,
isPending,
onClick,
selected,
onToggle,
}: {
id: LibraryItem["id"] | /** for pending item */ null;
elements?: LibraryItem["elements"];
files: BinaryFiles;
isPending?: boolean;
onClick: () => void;
selected: boolean;
onToggle: (id: string, event: React.MouseEvent) => void;
}) => {
const ref = useRef<HTMLDivElement | null>(null);
useEffect(() => {
const node = ref.current;
if (!node) {
return;
}
(async () => {
if (!elements) {
return;
}
const svg = await exportToSvg(
elements,
{
exportBackground: false,
viewBackgroundColor: oc.white,
},
files,
);
node.innerHTML = svg.outerHTML;
})();
return () => {
node.innerHTML = "";
};
}, [elements, files]);
const [isHovered, setIsHovered] = useState(false);
const isMobile = useIsMobile();
const adder = isPending && (
<div className="library-unit__adder">{PLUS_ICON}</div>
);
return (
<div
className={clsx("library-unit", {
"library-unit__active": elements,
"library-unit--hover": elements && isHovered,
"library-unit--selected": selected,
})}
onMouseEnter={() => setIsHovered(true)}
onMouseLeave={() => setIsHovered(false)}
>
<div
className={clsx("library-unit__dragger", {
"library-unit__pulse": !!isPending,
})}
ref={ref}
draggable={!!elements}
onClick={
!!elements || !!isPending
? (event) => {
if (id && event.shiftKey) {
onToggle(id, event);
} else {
onClick();
}
}
: undefined
}
onDragStart={(event) => {
setIsHovered(false);
event.dataTransfer.setData(
MIME_TYPES.excalidrawlib,
JSON.stringify(elements),
);
}}
/>
{adder}
{id && elements && (isHovered || isMobile || selected) && (
<CheckboxItem
checked={selected}
onChange={(checked, event) => onToggle(id, event)}
className="library-unit__checkbox"
/>
)}
</div>
);
};