google/material-design-lite

Add focus trapping to v1 side-nav

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#4,951 创建于 2016年12月1日

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 (3 评论) (0 反应) (1 负责人)HTML (32,173 star) (4,926 fork)batch import
AccessibilityLayouthelp wantedv1-bug

描述

The v1 side-nav is missing focus trapping, so it's currently possible to tab out of the drawer and into the background content, while it's open. We should implement focus trapping to prevent that from happening.

贡献者指南

技术栈
htmlcssjavascript
领域
frontendaccessibility
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
half day
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
JavaScriptDOM manipulationaccessibility
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
60
研究方向
Focus trapping prevents keyboard focus from leaving an open drawer. In this issue, the side nav drawer lacks focus trapping, allowing users to tab out. To implement, first locate the side nav component (likely in side nav.js or related files). Study the drawer's open/close logic. Use a common focus trapping pattern: when drawer opens, save the last focused element; intercept Tab key events within the drawer; loop focus among tabbable elements inside. Ensure the trap releases on close. Check for any existing discussions or PRs that attempted this (none currently). After implementing, test manually with keyboard navigation.