张翔
6d92024b63
- 修复API测试认证问题：创建全局认证设置，更新Playwright配置 - 优化回归测试稳定性：增加超时时间到15秒，修复定位器 - 创建Woodpecker CI工作流：CI、部署和质量门禁配置 - 添加Jest配置和测试脚本 - 移除登录页面的默认账号密码显示（安全问题修复）
61 lines
1.6 KiB
TypeScript
61 lines
1.6 KiB
TypeScript
interface ColorRGB {
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r: number;
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g: number;
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b: number;
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}
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interface ContrastResult {
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passes: boolean;
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ratio: number;
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requiredRatio: number;
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}
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function hexToRgb(hex: string): ColorRGB {
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const cleanHex = hex.replace('#', '');
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const r = parseInt(cleanHex.substring(0, 2), 16);
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const g = parseInt(cleanHex.substring(2, 4), 16);
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const b = parseInt(cleanHex.substring(4, 6), 16);
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return { r, g, b };
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}
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function getLuminance(rgb: ColorRGB): number {
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const { r, g, b } = rgb;
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const values = [r, g, b].map(v => {
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const normalized = v / 255;
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return normalized <= 0.03928 ? normalized / 12.92 : Math.pow((normalized + 0.055) / 1.055, 2.4);
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});
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return values[0]! * 0.2126 + values[1]! * 0.7152 + values[2]! * 0.0722;
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}
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export function calculateContrastRatio(foreground: string, background: string): number {
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const fgRgb = hexToRgb(foreground);
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const bgRgb = hexToRgb(background);
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const fgLuminance = getLuminance(fgRgb);
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const bgLuminance = getLuminance(bgRgb);
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const lighter = Math.max(fgLuminance, bgLuminance);
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const darker = Math.min(fgLuminance, bgLuminance);
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return (lighter + 0.05) / (darker + 0.05);
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}
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export function meetsWCAGStandard(
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foreground: string,
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background: string,
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level: 'AA' | 'AAA' = 'AA',
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textSize: 'normal' | 'large' = 'normal'
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): ContrastResult {
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const ratio = calculateContrastRatio(foreground, background);
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const requiredRatio = level === 'AAA'
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? (textSize === 'large' ? 4.5 : 7)
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: (textSize === 'large' ? 3 : 4.5);
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return {
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passes: ratio >= requiredRatio,
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ratio,
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requiredRatio,
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};
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}
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