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Gerwin Kuijntjes
682fc086d1
Tailwind v4's preflight no longer gives buttons a pointer cursor, so most buttons, menu items, tabs, switches and selects showed the arrow. A base-layer rule in globals.css gives them the pointer again and gives disabled ones not-allowed. Cursor utilities on components still take precedence.
78 lines
2.6 KiB
TypeScript
78 lines
2.6 KiB
TypeScript
import { describe, it, expect } from 'vitest';
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import { readFileSync } from 'fs';
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import path from 'path';
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/**
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* Tailwind v4's preflight resets buttons to the default cursor, so buttons,
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* menu items, tabs and switches showed the arrow instead of the pointer.
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* globals.css gives them the pointer back from the base layer, where a cursor
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* utility on a component still overrides it.
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*
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* jsdom does not cascade layered stylesheets, so lock the stylesheet rules.
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* Only rules inside `@layer base` count: unlayered, they would beat the
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* utilities.
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*/
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const css = readFileSync(path.join(process.cwd(), 'app', 'globals.css'), 'utf8');
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/** Return the bodies of every top-level `@layer base { ... }` block. */
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function baseLayers(): string[] {
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const bodies: string[] = [];
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let from = 0;
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for (;;) {
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const idx = css.indexOf('\n@layer base {', from);
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if (idx === -1) return bodies;
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const open = css.indexOf('{', idx);
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let depth = 0;
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let end = open;
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for (; end < css.length; end++) {
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if (css[end] === '{') depth++;
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if (css[end] === '}' && --depth === 0) break;
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}
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bodies.push(css.slice(open + 1, end));
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from = end;
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}
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}
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/** Selectors of each rule in a block, keyed by the cursor the rule sets. */
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function cursorRules(block: string): Map<string, string[]> {
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const rules = new Map<string, string[]>();
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for (const m of block.matchAll(/([^{}]+)\{\s*cursor:\s*([a-z-]+);\s*\}/g)) {
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const selectors = m[1].split(',').map((s) => s.trim());
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rules.set(m[2], [...(rules.get(m[2]) ?? []), ...selectors]);
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}
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return rules;
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}
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describe('pointer cursor on clickable controls', () => {
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const rules = cursorRules(baseLayers().join('\n'));
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const pointer = rules.get('pointer') ?? [];
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const notAllowed = rules.get('not-allowed') ?? [];
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it.each([
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'button:not(:disabled)',
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'select:not(:disabled)',
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'[role="button"]:not([aria-disabled="true"])',
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'[role="tab"]:not([aria-disabled="true"])',
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'[role="switch"]:not([aria-disabled="true"])',
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'[role="option"]:not([aria-disabled="true"])',
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'[role="menuitem"]:not([aria-disabled="true"])',
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])('gives %s the pointer', (selector) => {
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expect(pointer).toContain(selector);
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});
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it.each([
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'button:disabled',
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'select:disabled',
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'[role="button"][aria-disabled="true"]',
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'[role="menuitem"][aria-disabled="true"]',
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])('gives %s not-allowed', (selector) => {
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expect(notAllowed).toContain(selector);
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});
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it('never gives a disabled control the pointer', () => {
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for (const selector of pointer) {
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expect(selector).not.toMatch(/:disabled(?!\))|\[aria-disabled="true"\](?!\))/);
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}
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});
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});
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