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49 changes: 49 additions & 0 deletions
49
app/frontend/src/components/MarkdownViewer/MarkdownViewer.module.css
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| .downloadButton { | ||
| position: relative; | ||
| float: right; | ||
| } | ||
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| .markdownViewer { | ||
| border-radius: 8px; | ||
| box-shadow: | ||
| #0000000d 0 0 0 1px, | ||
| #0000001a 0 2px 3px; | ||
| background-color: white; | ||
| margin: 20px 0; | ||
| } | ||
|
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| .loading { | ||
| padding: 100px; | ||
| height: 100vh; | ||
| background-color: white; | ||
| } | ||
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| .error { | ||
| height: 100vh; | ||
| background-color: white; | ||
| } | ||
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| .markdown { | ||
| padding: 30px; | ||
| } | ||
|
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| table { | ||
| border-collapse: collapse; | ||
| } | ||
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| th, | ||
| td { | ||
| border: 1px solid #ddd; | ||
| padding: 8px; | ||
| } | ||
|
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| tr:nth-child(even) { | ||
| background-color: #f6f8fa; | ||
| } | ||
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| code { | ||
| display: block; | ||
| font-family: monospace; | ||
| padding: 10px; | ||
| background-color: #f6f8fa; | ||
| } |
78 changes: 78 additions & 0 deletions
78
app/frontend/src/components/MarkdownViewer/MarkdownViewer.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| import React, { useState, useEffect } from "react"; | ||
| import { marked } from "marked"; | ||
| import styles from "./MarkdownViewer.module.css"; | ||
| import { Spinner, SpinnerSize, MessageBar, MessageBarType, Link, IconButton } from "@fluentui/react"; | ||
|
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| interface MarkdownViewerProps { | ||
| src: string; | ||
| } | ||
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| export const MarkdownViewer: React.FC<MarkdownViewerProps> = ({ src }) => { | ||
| const [content, setContent] = useState<string>(""); | ||
| const [isLoading, setIsLoading] = useState<boolean>(true); | ||
| const [error, setError] = useState<Error | null>(null); | ||
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| /** | ||
| * Anchor links are not handled well by 'marked' and result in HTTP 404 errors as the URL they point to does not exist. | ||
| * This function removes them from the resulted HTML. | ||
| */ | ||
| const removeAnchorLinks = (html: string) => { | ||
| const ancorLinksRegex = /<a\s+(?:[^>]*?\s+)?href=['"](#[^"']*?)['"][^>]*?>/g; | ||
| return html.replace(ancorLinksRegex, ""); | ||
| }; | ||
|
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| useEffect(() => { | ||
| const fetchMarkdown = async () => { | ||
| try { | ||
| const response = await fetch(src); | ||
|
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| if (!response.ok) { | ||
| throw new Error("Failed loading markdown file."); | ||
| } | ||
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| const markdownText = await response.text(); | ||
| const parsedHtml = await marked.parse(markdownText); | ||
| const cleanedHtml = removeAnchorLinks(parsedHtml); | ||
| setContent(cleanedHtml); | ||
| } catch (error: any) { | ||
| setError(error); | ||
| } finally { | ||
| setIsLoading(false); | ||
| } | ||
| }; | ||
|
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| fetchMarkdown(); | ||
| }, [src]); | ||
|
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| return ( | ||
| <div> | ||
| {isLoading ? ( | ||
| <div className={`${styles.loading} ${styles.markdownViewer}`}> | ||
| <Spinner size={SpinnerSize.large} label="Loading file" /> | ||
| </div> | ||
| ) : error ? ( | ||
| <div className={`${styles.error} ${styles.markdownViewer}`}> | ||
| <MessageBar messageBarType={MessageBarType.error} isMultiline={false}> | ||
| {error.message} | ||
| <Link href={src} download> | ||
| Download the file | ||
| </Link> | ||
| </MessageBar> | ||
| </div> | ||
| ) : ( | ||
| <div> | ||
| <IconButton | ||
| className={styles.downloadButton} | ||
| style={{ color: "black" }} | ||
| iconProps={{ iconName: "Save" }} | ||
| title="Save" | ||
| ariaLabel="Save" | ||
| href={src} | ||
| download | ||
| /> | ||
| <div className={`${styles.markdown} ${styles.markdownViewer}`} dangerouslySetInnerHTML={{ __html: content }} /> | ||
| </div> | ||
| )} | ||
| </div> | ||
| ); | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| export * from "./MarkdownViewer"; |
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