2022-02-26 14:12:13 +00:00
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import type { Awaitable } from '@antfu/utils';
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2022-02-26 17:31:45 +00:00
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import type { IconifyLoaderOptions } from './types';
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2021-12-09 21:12:00 +00:00
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2022-03-17 09:07:29 +00:00
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/exec
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/*
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const svgWidthRegex = /(width\s*=\s*["'](\w+)["'])/d
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const svgHeightRegex = /(height\s*=\s*["'](\w+)["'])/d
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function configureSvgSize(svg: string, props: Record<string, string>, scale: number) {
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if (props.width && props.height) {
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return;
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}
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const svgNode = svg.slice(0, svg.indexOf('>'))
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let height: string | undefined
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let width: string | undefined
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let result = svgWidthRegex.exec(svgNode)
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if (result) {
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}
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if (!width) {
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width = props.widht ?? `${scale}em`
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}
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result = svgHeightRegex.exec(svgNode)
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if (result) {
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}
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if (!height) {
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height = props.height ?? `${scale}em`
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}
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}
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*/
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2022-01-10 12:43:35 +00:00
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export async function mergeIconProps(
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svg: string,
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collection: string,
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icon: string,
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2022-02-26 17:31:45 +00:00
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options?: IconifyLoaderOptions,
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2022-03-04 16:37:21 +00:00
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propsProvider?: () => Awaitable<Record<string, string>>
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2022-01-10 12:43:35 +00:00
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): Promise<string> {
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2022-03-04 16:37:21 +00:00
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const { scale, addXmlNs = false } = options ?? {};
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const { additionalProps = {}, iconCustomizer } =
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options?.customizations ?? {};
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2022-02-26 15:44:24 +00:00
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const props: Record<string, string> = (await propsProvider?.()) ?? {};
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2022-03-04 16:37:21 +00:00
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if (
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!svg.includes(' width=') &&
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!svg.includes(' height=') &&
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typeof scale === 'number'
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) {
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if (
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(typeof props.width === 'undefined' || props.width === null) &&
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(typeof props.height === 'undefined' || props.height === null)
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) {
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2022-02-26 16:47:57 +00:00
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props.width = `${scale}em`;
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props.height = `${scale}em`;
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}
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}
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2022-02-26 17:31:45 +00:00
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2022-01-10 16:08:40 +00:00
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await iconCustomizer?.(collection, icon, props);
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2022-01-10 12:43:35 +00:00
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Object.keys(additionalProps).forEach((p) => {
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2022-01-10 16:08:40 +00:00
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const v = additionalProps[p];
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if (v !== undefined && v !== null) props[p] = v;
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});
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2022-03-17 09:07:29 +00:00
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const addUsedProps = options && options.usedProps;
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// we need to parse the svg if we need to also return used props
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// and there are no width nor height in the props
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// if (addUsedProps) {
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// if (typeof props.width === 'undefined' || props.width === null)
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// }
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2022-02-26 16:20:16 +00:00
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// add xml namespaces if necessary
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if (addXmlNs) {
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// add svg xmlns if missing
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if (!svg.includes(' xmlns=') && !props['xmlns']) {
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props['xmlns'] = 'http://www.w3.org/2000/svg';
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}
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// add xmlns:xlink if xlink present and the xmlns missing
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2022-03-04 16:37:21 +00:00
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if (
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!svg.includes(' xmlns:xlink=') &&
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svg.includes('xlink:') &&
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!props['xmlns:xlink']
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) {
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2022-02-26 16:20:16 +00:00
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props['xmlns:xlink'] = 'http://www.w3.org/1999/xlink';
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}
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2022-02-26 14:12:13 +00:00
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}
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2022-02-26 16:20:16 +00:00
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2022-02-26 17:31:45 +00:00
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svg = svg.replace(
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2022-02-26 16:20:16 +00:00
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'<svg ',
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2022-03-04 16:37:21 +00:00
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`<svg ${Object.keys(props)
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.map((p) => `${p}="${props[p]}"`)
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.join(' ')}`
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2022-01-10 16:08:40 +00:00
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);
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2022-02-26 17:31:45 +00:00
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if (svg && options) {
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2022-03-04 16:37:21 +00:00
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const { defaultStyle, defaultClass } = options;
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2022-02-26 17:31:45 +00:00
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// additional props and iconCustomizer takes precedence
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if (defaultClass && !svg.includes(' class=')) {
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svg = svg.replace('<svg ', `<svg class="${defaultClass}" `);
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}
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// additional props and iconCustomizer takes precedence
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if (defaultStyle && !svg.includes(' style=')) {
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svg = svg.replace('<svg ', `<svg style="${defaultStyle}" `);
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}
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}
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2022-03-17 09:07:29 +00:00
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if (addUsedProps) {
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options!.usedProps = Object.keys(props).reduce((acc, k) => {
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if (k) {
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switch (k) {
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case 'scale':
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case 'xmlns':
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case 'xmlns:xlink':
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break;
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default:
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acc[k] = props[k];
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break;
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}
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}
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return acc;
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}, {} as Record<string, string>);
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}
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2022-02-26 17:31:45 +00:00
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return svg;
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2022-01-10 12:43:35 +00:00
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}
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