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Interest Invokers: avoid a11y traps #1093

Open scottaohara opened 2 months ago

scottaohara commented 2 months ago

In an offline discussion it was mentioned that interest invokers could potentially be used to invoke modal dialogs on hover or focus. While that is not mentioned in the explainer as a use case (my take away is that it's not a use case at all since the interestee elements are all listed as popovers), it should probably be mentioned as something people should not do (e.g., by 'faking' a modal dialog by invoking a dialog popover and manually making everything inert).

In general, for the a11y section it should be noted that 'interest' does not necessarily indicate someone wants to immediately interact with whatever content is exposed / if they want to even interact with it at all. So, it should be called out explicitly that it is not expected for a focus change to occur anytime an item of interest is displayed. Doing so would commonly fail WCAG 3.2.1 - On Focus.

lukewarlow commented 2 months ago

Yeah this is a good point we should definitely call this out. The available actions explicitly aren't the same as command. Aka modals are NOT a valid use case for this.