@silverhand/mermaid-isomorphic/dist/browser.js

Transform mermaid diagrams in the browser or Node.js

import mermaid from 'mermaid';
const parser = new DOMParser();
const serializer = new XMLSerializer();
/**
 * Get an aria value form a referencing attribute.
 *
 * @param element
 *   The SVG element the get the value from.
 * @param attribute
 *   The attribute whose value to get.
 * @returns
 *   The aria value.
 */
function getAriaValue(element, attribute) {
    const value = element.getAttribute(attribute);
    if (!value) {
        return;
    }
    let result = '';
    for (const id of value.split(/\s+/)) {
        const node = element.getElementById(id);
        if (node) {
            result += node.textContent;
        }
    }
    return result;
}
const renderer = (diagrams, options) => Promise.allSettled(diagrams.map(async (diagram, index) => {
    const id = `${options?.prefix ?? 'mermaid'}-${index}`;
    const { svg } = await mermaid.render(id, diagram);
    const root = parser.parseFromString(svg, 'text/html');
    const [element] = root.getElementsByTagName('svg');
    const { height, width } = element.viewBox.baseVal;
    const description = getAriaValue(element, 'aria-describedby');
    const title = getAriaValue(element, 'aria-labelledby');
    const result = {
        height,
        id,
        svg: serializer.serializeToString(element),
        width
    };
    if (description) {
        result.description = description;
    }
    if (title) {
        result.title = title;
    }
    return result;
}));
export const createMermaidRenderer = () => renderer;
//# sourceMappingURL=browser.js.map