Summary: Text columns can now display their values as Markdown-formatted text by changing their cell format to "Markdown". A minimal subset of the Markdown specification is currently supported. Test Plan: Browser tests. Reviewers: Spoffy, dsagal Reviewed By: Spoffy, dsagal Subscribers: dsagal, Spoffy Differential Revision: https://phab.getgrist.com/D4326dependabot/npm_and_yarn/axios-1.7.4
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import {gristIconLink} from 'app/client/ui2018/links';
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import escape from 'lodash/escape';
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import {marked} from 'marked';
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export const renderer = new marked.Renderer();
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renderer.link = ({href, text}) => gristIconLink(href, text).outerHTML;
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// Disable Markdown features that we aren't ready to support yet.
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renderer.hr = ({raw}) => raw;
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renderer.html = ({raw}) => escape(raw);
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renderer.image = ({raw}) => raw;
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@ -0,0 +1,179 @@
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import { DataRowModel } from 'app/client/models/DataRowModel';
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import { ViewFieldRec } from 'app/client/models/entities/ViewFieldRec';
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import { buildCodeHighlighter } from 'app/client/ui/CodeHighlight';
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import { renderer } from 'app/client/ui/MarkdownCellRenderer';
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import { sanitizeHTML } from 'app/client/ui/sanitizeHTML';
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import { theme, vars } from 'app/client/ui2018/cssVars';
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import { gristThemeObs } from 'app/client/ui2018/theme';
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import { NTextBox } from 'app/client/widgets/NTextBox';
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import { dom, styled, subscribeBindable } from 'grainjs';
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import { Marked } from 'marked';
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import { markedHighlight } from 'marked-highlight';
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/**
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* Creates a widget for displaying Markdown-formatted text.
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*/
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export class MarkdownTextBox extends NTextBox {
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private _marked: Marked;
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constructor(field: ViewFieldRec) {
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super(field);
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const highlightCodePromise = buildCodeHighlighter({maxLines: 60});
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this._marked = new Marked(
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markedHighlight({
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async: true,
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highlight: async (code) => {
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const highlightCode = await highlightCodePromise;
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return highlightCode(code);
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},
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})
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);
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}
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public buildDom(row: DataRowModel) {
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const value = row.cells[this.field.colId()];
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return cssFieldClip(
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cssFieldClip.cls('-text-wrap', this.wrapping),
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dom.style('text-align', this.alignment),
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(el) => dom.autoDisposeElem(el, subscribeBindable(value, async () => {
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el.innerHTML = sanitizeHTML(await this._marked.parse(String(value.peek()), {gfm: false, renderer}));
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this.field.viewSection().events.trigger('rowHeightChange');
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})),
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// Note: the DOM needs to be rebuilt on theme change, as Ace needs to switch between
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// light and dark themes. If we switch to using a custom Grist Ace theme (with CSS
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// variables used for highlighting), we can remove the listener below (and elsewhere).
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(el) => dom.autoDisposeElem(el, subscribeBindable(gristThemeObs(), async () => {
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el.innerHTML = sanitizeHTML(await this._marked.parse(String(value.peek()), {gfm: false, renderer}));
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})),
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);
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}
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}
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const cssFieldClip = styled('div.field_clip', `
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white-space: nowrap;
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&-text-wrap {
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white-space: normal;
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word-break: break-word;
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}
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&:not(&-text-wrap) p,
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&:not(&-text-wrap) h1,
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&:not(&-text-wrap) h2,
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&:not(&-text-wrap) h3,
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&:not(&-text-wrap) h4,
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&:not(&-text-wrap) h5,
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&:not(&-text-wrap) h6
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{
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overflow: hidden;
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text-overflow: ellipsis;
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}
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& > *:first-child {
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margin-top: 0px !important;
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}
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& > *:last-child {
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margin-bottom: 0px !important;
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}
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& h1, & h2, & h3, & h4, & h5, & h6 {
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margin-top: 24px;
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margin-bottom: 16px;
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font-weight: 600;
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line-height: 1.25;
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}
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& h1 {
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padding-bottom: .3em;
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font-size: 2em;
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}
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& h2 {
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padding-bottom: .3em;
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font-size: 1.5em;
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}
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& h3 {
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font-size: 1.25em;
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}
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& h4 {
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font-size: 1em;
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}
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& h5 {
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font-size: .875em;
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}
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& h6 {
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color: ${theme.lightText};
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font-size: .85em;
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}
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& p, & blockquote, & ul, & ol, & dl, & pre {
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margin-top: 0px;
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margin-bottom: 10px;
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}
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& code, & pre {
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color: ${theme.text};
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font-size: 85%;
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background-color: ${theme.markdownCellLightBg};
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border: 0;
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border-radius: 6px;
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}
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& code {
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padding: .2em .4em;
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margin: 0;
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white-space: nowrap;
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}
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&-text-wrap code {
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white-space: break-spaces;
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}
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& pre {
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padding: 16px;
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overflow: auto;
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line-height: 1.45;
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}
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& pre code {
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font-size: 100%;
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display: inline;
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max-width: auto;
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margin: 0;
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padding: 0;
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overflow: visible;
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line-height: inherit;
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word-wrap: normal;
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background: transparent;
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}
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& pre > code {
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background: transparent;
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white-space: nowrap;
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word-break: normal;
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margin: 0;
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padding: 0;
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}
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&-text-wrap pre > code {
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white-space: normal;
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}
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& pre .ace-chrome, & pre .ace-dracula {
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background: ${theme.markdownCellLightBg} !important;
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}
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& .ace_indent-guide {
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background: none;
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}
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& .ace_static_highlight {
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white-space: nowrap;
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}
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& ul, & ol {
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list-style-position: inside;
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padding-left: 1em;
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}
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& li > ol, & li > ul {
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margin: 0;
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}
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&:not(&-text-wrap) li {
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overflow: hidden;
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text-overflow: ellipsis;
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}
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& li + li,
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& li > ol > li:first-child,
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& li > ul > li:first-child {
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margin-top: .25em;
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}
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& blockquote {
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font-size: ${vars.mediumFontSize};
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border-left: .25em solid ${theme.markdownCellMediumBorder};
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padding: 0 1em;
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}
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`);
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After Width: | Height: | Size: 438 B |
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