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August 21, 2018 20:49
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A proper way to create an accessible modal dialog element (a11y). This gist is only about the wrapper element, the links in the comment describe all necessary steps in detail.
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| <!-- | |
| A tabindex="-1" allows an element to receive programmatic focus. | |
| This is useful a modal dialog window: when opened, focus should be set to the dialog so a screen reader | |
| will begin reading and the keyboard will be able to navigate within the dialog. | |
| Because the dialog (probably a <div> element) is not focusable by default, assigning it tabindex="-1" | |
| allows scripting to set focus to it when it is presented | |
| Resources: | |
| https://www.w3.org/WAI/GL/wiki/Using_ARIA_role%3Ddialog_to_implement_a_modal_dialog_box#Note_on_focus_management | |
| https://webaim.org/techniques/keyboard/tabindex | |
| --> | |
| <div | |
| tabindex="-1" | |
| role="dialog" | |
| aria-labelledby="myDialog" | |
| ><!-- content --></div> |
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