The toggle-input component I implemented in React is not providing the desired level of accessibility

Having an accessibility issue with a toggle input while using VoiceOver on a Mac. The problem is that when I turn the toggle off, VoiceOver says it's on, and vice versa. How can I fix this so that VoiceOver accurately states whether the toggle is on or off? The code appears to be correct, with all labels matching each toggle input; the only problem lies in the inaccurate information provided by VoiceOver.

Toggle.tsx

<div className={`flex items-center justify-between py-4 ${className}`}>
      <div id={labelId}>{label}</div>
      <label htmlFor={id} className="inline-flex cursor-pointer items-center">
        <span className="relative">
          <input
            id={id}
            aria-labelledby={labelId}
            type="checkbox"
            className="peer absolute opacity-0"
            value={toggledOn ? 1 : 0}
            onChange={onToggle}
          />
          <span
            className={`block h-6 w-10 rounded-full shadow-inner ${
              toggledOn ? 'bg-bui-color-green' : 'bg-bui-color-gray'
            } peer-focus-outline`}
          />
          <span
            className={`focus-within:shadow-outline absolute inset-y-0 left-0 mt-[0.125rem] ml-[0.125rem] block h-5 w-5 rounded-full bg-bui-color-white shadow transition-transform duration-300 ease-in-out ${
              toggledOn ? 'ml-[-0.125rem] translate-x-full transform' : ''
            }`}
          />
        </span>
      </label>
    </div>

Utilized in Settings.tsx

{loading ? (
          <Spinner />
        ) : (
          data?.user?.savedSearches?.map((it: any) => (
            <Toggle
              id={it.searchId}
              className={toggleClassNames}
              key={it.searchId}
              label={it?.title}
              toggledOn={savedSearchesValues[it.searchId as keyof typeof savedSearchesValues]}
              onToggle={() => {
                handleSearchToggleChange(
                  it.searchId,
                  !savedSearchesValues[it.searchId as keyof typeof savedSearchesValues],
                  it.emailFrequency,
                );
              }}
            />
          ))
        )}

Answer №1

Ensuring proper usage of the checkbox input is essential for optimal functionality. By following industry standards, you can ensure that it functions as expected.

For a checkbox to work correctly, it must indicate its state through the checked attribute. Additionally, conforming to the ARIA standard requires exposing the state using aria-checked.

The ARIA Authoring Practices Guide (APG) provides guidance on the Switch pattern, which utilizes a button instead of a traditional checkbox and changes the label to On/Off. This pattern also leverages aria-checked to communicate the state.

https://i.stack.imgur.com/bHjnf.png


Attempting to modify the checkbox label dynamically based on internal react state may not be fully supported across different assistive technologies. The behavior may vary depending on how screen readers interpret the changing states.

In this specific case, inconsistencies arise from using multiple methods to provide an accessible name for the checkbox. Implementing aria-labelledby, for, and wrapping with a <label> introduces complexity in determining which technique takes precedence.

Different browsers and assistive technologies may prioritize these techniques differently, impacting the accessibility of the checkbox. For instance, in Firefox, the aria-label may take precedence over other methods, potentially leading to incomplete exposure of labels like On/Off.

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