leaflet.pub
a tool for shared writing and social publishing
awarm.space
1import { useMemo } from "react";
2import { Color, parseColor } from "react-aria-components";
3import { useEntity, useReplicache } from "src/replicache";
4import { FilterAttributes } from "src/replicache/attributes";
5import { ThemeDefaults } from "./ThemeProvider";
6
7export function useColorAttribute(
8 entity: string | null,
9 attribute: keyof FilterAttributes<{ type: "color"; cardinality: "one" }>,
10) {
11 // takes a color string and turns it into a react-aria Color type
12 // we need it to interact with Color Pickers for themeing
13 let { rootEntity } = useReplicache();
14 let color = useEntity(entity, attribute);
15 let fallbackColor = useEntity(color ? null : rootEntity, attribute);
16 return useMemo(() => {
17 let c = color || fallbackColor;
18 return parseColor(c ? `hsba(${c.data.value})` : ThemeDefaults[attribute]);
19 }, [color, fallbackColor, attribute]);
20}
21export function useColorAttributeNullable(
22 entity: string | null,
23 attribute: keyof FilterAttributes<{ type: "color"; cardinality: "one" }>,
24) {
25 // takes a color string and turns it into a react-aria Color type
26 // we need it to interact with Color Pickers for themeing
27 let color = useEntity(entity, attribute);
28 return useMemo(() => {
29 let c = color;
30 return c ? parseColor(`hsba(${c.data.value})`) : null;
31 }, [color, attribute]);
32}
33
34export function colorToString(value: Color, space: "rgb" | "hsba") {
35 // takes a react-aria Color type and turns it into an rgb or hsba color string.
36 // we need it to set the color in our database when we can the color back from the Color Pickers
37 return value.toString(space).slice(space.length + 1, -1);
38}