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fix: prevent double markdown link brackets when pasting URL (#34745)

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When adding a link using the "Add a link" button in comment editor,
pasting a URL resulted in incorrect Markdown formatting (double
brackets) instead of replacing the placeholder text.

This fix adds a context check to prevent creating a new markdown link
when we're already inside an existing one.

Fixes #34740

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
This commit is contained in:
MaxWebZ 2025-06-17 16:33:50 +03:00 committed by GitHub
parent 4cbb482554
commit 037f72bdb3
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2 changed files with 26 additions and 7 deletions
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12
web_src/js/features/comp/EditorUpload.test.ts
View File

@ -1,4 +1,4 @@
import {removeAttachmentLinksFromMarkdown} from './EditorUpload.ts';
import {pasteAsMarkdownLink, removeAttachmentLinksFromMarkdown} from './EditorUpload.ts';
test('removeAttachmentLinksFromMarkdown', () => {
expect(removeAttachmentLinksFromMarkdown('a foo b', 'foo')).toBe('a foo b');
@ -12,3 +12,13 @@ test('removeAttachmentLinksFromMarkdown', () => {
expect(removeAttachmentLinksFromMarkdown('a <img src="/attachments/foo"> b', 'foo')).toBe('a b');
expect(removeAttachmentLinksFromMarkdown('a <img src="/attachments/foo" width="100"/> b', 'foo')).toBe('a b');
});
test('preparePasteAsMarkdownLink', () => {
expect(pasteAsMarkdownLink({value: 'foo', selectionStart: 0, selectionEnd: 0}, 'bar')).toBeNull();
expect(pasteAsMarkdownLink({value: 'foo', selectionStart: 0, selectionEnd: 0}, 'https://gitea.com')).toBeNull();
expect(pasteAsMarkdownLink({value: 'foo', selectionStart: 0, selectionEnd: 3}, 'bar')).toBeNull();
expect(pasteAsMarkdownLink({value: 'foo', selectionStart: 0, selectionEnd: 3}, 'https://gitea.com')).toBe('[foo](https://gitea.com)');
expect(pasteAsMarkdownLink({value: '..(url)', selectionStart: 3, selectionEnd: 6}, 'https://gitea.com')).toBe('[url](https://gitea.com)');
expect(pasteAsMarkdownLink({value: '[](url)', selectionStart: 3, selectionEnd: 6}, 'https://gitea.com')).toBeNull();
expect(pasteAsMarkdownLink({value: 'https://example.com', selectionStart: 0, selectionEnd: 19}, 'https://gitea.com')).toBeNull();
});

21
web_src/js/features/comp/EditorUpload.ts
View File

@ -118,17 +118,26 @@ export function removeAttachmentLinksFromMarkdown(text: string, fileUuid: string
return text;
}
function handleClipboardText(textarea: HTMLTextAreaElement, e: ClipboardEvent, text: string, isShiftDown: boolean) {
export function pasteAsMarkdownLink(textarea: {value: string, selectionStart: number, selectionEnd: number}, pastedText: string): string | null {
const {value, selectionStart, selectionEnd} = textarea;
const selectedText = value.substring(selectionStart, selectionEnd);
const trimmedText = pastedText.trim();
const beforeSelection = value.substring(0, selectionStart);
const afterSelection = value.substring(selectionEnd);
const isInMarkdownLink = beforeSelection.endsWith('](') && afterSelection.startsWith(')');
const asMarkdownLink = selectedText && isUrl(trimmedText) && !isUrl(selectedText) && !isInMarkdownLink;
return asMarkdownLink ? `[${selectedText}](${trimmedText})` : null;
}
function handleClipboardText(textarea: HTMLTextAreaElement, e: ClipboardEvent, pastedText: string, isShiftDown: boolean) {
// pasting with "shift" means "paste as original content" in most applications
if (isShiftDown) return; // let the browser handle it
// when pasting links over selected text, turn it into [text](link)
const {value, selectionStart, selectionEnd} = textarea;
const selectedText = value.substring(selectionStart, selectionEnd);
const trimmedText = text.trim();
if (selectedText && isUrl(trimmedText) && !isUrl(selectedText)) {
const pastedAsMarkdown = pasteAsMarkdownLink(textarea, pastedText);
if (pastedText) {
e.preventDefault();
replaceTextareaSelection(textarea, `[${selectedText}](${trimmedText})`);
replaceTextareaSelection(textarea, pastedAsMarkdown);
}
// else, let the browser handle it
}