fix(markdown): render default-presentation emoji without variation selectors

fluxer_app/src/features/messaging/utils/markdown/parser/MarkdownParserWasm.test.ts

@@ -1,8 +1,17 @@
 // SPDX-License-Identifier: AGPL-3.0-or-later
 
+import {initializeEmojiParser} from '@app/features/messaging/utils/markdown/EmojiProviderSetup';
 import {ParserFlags} from '@app/features/messaging/utils/markdown/parser/Enums';
 import {parseMarkdownAstWithWasm} from '@app/features/messaging/utils/markdown/parser/MarkdownParserWasm';
-import {describe, expect, it} from 'vitest';
+import {beforeAll, describe, expect, it, vi} from 'vitest';
+
+vi.mock('@app/features/expressions/utils/EmojiUtils', () => ({
+	getEmojiURL: () => null,
+}));
+
+vi.mock('@lingui/core/macro', () => ({
+	msg: (descriptor: unknown) => descriptor,
+}));
 
 describe('markdown parser wasm blockquotes', () => {
 	it('preserves consecutive empty blockquote lines', () => {
@@ -62,3 +71,36 @@ describe('markdown parser wasm headings', () => {
 		});
 	});
 });
+
+describe('markdown parser wasm default-presentation emoji', () => {
+	beforeAll(() => {
+		initializeEmojiParser();
+	});
+
+	it.each([
+		['⌚', 'watch', '231a'],
+		['⌛', 'hourglass', '231b'],
+		['⏩', 'fast_forward', '23e9'],
+		['⏪', 'rewind', '23ea'],
+		['⏫', 'arrow_double_up', '23eb'],
+		['⏬', 'arrow_double_down', '23ec'],
+		['⏰', 'alarm_clock', '23f0'],
+		['⏳', 'hourglass_flowing_sand', '23f3'],
+	])('renders %s as an emoji without a variation selector', (raw, name, codepoints) => {
+		expect(parseMarkdownAstWithWasm(raw, 0)).toEqual({
+			nodes: [{type: 'Emoji', kind: {kind: 'Standard', raw, codepoints, name}}],
+		});
+	});
+
+	it('keeps text-presentation symbols as plain text when typed bare', () => {
+		expect(parseMarkdownAstWithWasm('❤', 0)).toEqual({
+			nodes: [{type: 'Text', content: '❤'}],
+		});
+	});
+
+	it('still renders text-presentation symbols carrying a variation selector', () => {
+		expect(parseMarkdownAstWithWasm('❤️', 0)).toEqual({
+			nodes: [{type: 'Emoji', kind: {kind: 'Standard', raw: '❤️', codepoints: '2764', name: 'heart'}}],
+		});
+	});
+});

fluxer_app/src/features/messaging/utils/markdown/parser/MarkdownParserWasm.ts

@@ -217,15 +217,6 @@ const SPECIAL_SHORTCODES: Record<string, string> = {
 	registered: '®',
 };
 
-function needsVariationSelector(codePoint: number): boolean {
-	return (
-		(codePoint >= 0x2190 && codePoint <= 0x21ff) ||
-		(codePoint >= 0x2300 && codePoint <= 0x23ff) ||
-		(codePoint >= 0x2600 && codePoint <= 0x27bf) ||
-		(codePoint >= 0x2900 && codePoint <= 0x297f)
-	);
-}
-
 function appendContextLine(parts: Array<string>): string {
 	return `${parts.join('\t')}\n`;
 }
@@ -244,10 +235,6 @@ function buildEmojiContext(input: string): string {
 		while ((match = emojiRegex.exec(input)) !== null) {
 			const candidate = match[0];
 			if (!candidate || PLAINTEXT_SYMBOLS.has(candidate)) continue;
-			const hasVariationSelector = candidate.includes('️');
-			const codePoint = candidate.codePointAt(0) || 0;
-			const isDingbat = codePoint >= 0x2600 && codePoint <= 0x27bf;
-			if (!isDingbat && needsVariationSelector(codePoint) && !hasVariationSelector) continue;
 			const name = provider.getSurrogateName(candidate);
 			if (!name) continue;
 			const candidateBytes = textEncoder.encode(candidate).byteLength;