mapbox/mapbox-gl-js

[accessibility] Accessible target size for controls

Open

#11,037 创建于 2021年9月18日

在 GitHub 查看
 (1 评论) (1 反应) (0 负责人)JavaScript (10,532 star) (2,203 fork)batch import
good first issue

描述

The WCAG 2.1 SC 2.5.5 Target Size requires targets for pointer input to be at least 44 by 44 in CSS pixels. Meeting this requirement has multiple benefits, it'd be great to pass this criteria for the commonly used controls:

  • Attribution control (mapboxgl-ctrl-attrib-button)
  • Popup close button (mapboxgl-popup-close-button)
  • Fullscreen control (mapboxgl-ctrl-fullscreen)
  • Location control (mapboxgl-ctrl-geolocate)
  • Markers (mapboxgl-marker)
  • Navigation controls:
    • Zoom in (mapboxgl-ctrl-zoom-in)
    • Zoom out (mapboxgl-ctrl-zoom-out)
    • Compass/reset bearing (mapboxgl-ctrl-compass)
  • etc.?

It may not be desirable to increase the size of the icons themselves, in which case padding can be used to increase the size of the tap targets.

贡献者指南

技术栈
javascriptcsshtml
领域
accessibility
议题类型
accessibility
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
CSSHTMLJavaScript
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。
70
研究方向
This issue asks to ensure that interactive controls in mapbox gl js meet WCAG 2.1 target size requirements by adding CSS padding to increase the tap target area to at least 44x44 CSS pixels. The controls identified include: attribution button, popup close button, fullscreen/geolocation controls, markers, and navigation zoom/compass buttons. Look for the control classes like 'mapboxgl ctrl attrib button', 'mapboxgl popup close button', etc. in the CSS source files (likely in 'src/css/'). Add padding to these elements while keeping the icon size unchanged. Test that the padding does not break layout. The issue has no linked PRs, so implementation is open. Review the WCAG understanding document linked in the issue for guidance.
[accessibility] Accessible target size for controls · mapbox/mapbox-gl-js#11037 | Good First Issue