import { sameDocumentUrlState, urlState } from 'app/client/models/gristUrlState'; import { colors } from 'app/client/ui2018/cssVars'; import { CellValue } from 'app/plugin/GristData'; import { dom, IDomArgs, Observable, styled } from 'grainjs'; /** * Styling for a simple green link. */ // Match the font-weight of buttons. export const cssLink = styled('a', ` color: ${colors.lightGreen}; --icon-color: ${colors.lightGreen}; text-decoration: none; &:hover, &:focus { color: ${colors.lightGreen}; --icon-color: ${colors.lightGreen}; text-decoration: underline; } `); export function gristLink(href: string|Observable, ...args: IDomArgs) { return dom("a", dom.attr("href", href), dom.attr("target", "_blank"), dom.on("click", ev => onClickHyperLink(ev, typeof href === 'string' ? href : href.get())), // As per Google and Mozilla recommendations to prevent opened links // from running on the same process as Grist: // https://developers.google.com/web/tools/lighthouse/audits/noopener dom.attr("rel", "noopener noreferrer"), args ); } /** * If possible (i.e. if `url` points to somewhere in the current document) * use pushUrl to navigate without reloading or opening a new tab */ export async function onClickHyperLink(ev: MouseEvent, url: CellValue) { // Only override plain-vanilla clicks. if (ev.shiftKey || ev.metaKey || ev.ctrlKey || ev.altKey) { return; } const newUrlState = sameDocumentUrlState(url); if (!newUrlState) { return; } ev.preventDefault(); await urlState().pushUrl(newUrlState); }