Resolving user agent must not statement and whitespace defs#1778
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Resolving user agent must not statement and whitespace defs#1778
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Related to w3c/core-aam#128 Fixes #1476 - link to definition of whitespace in the aria-braillelabel and aria-brailleroledescription, aria-roledescription sections - remove reference to whitespace from user agents must not aria-roledescription requirement - remove author error correction User Agents MUST NOT expose prohibited ARIA attributes statement from correcting for author errors section. - adds authors MUST NOT specify aria-roledescription on elements with roles where the attribute is prohibited. - removed non-normative "should" from aria-brailleroledescription - adds authors MUST NOT use aria-brailleroledescription where prohibited - adds authors MUST NOT use aria-label and aria-labelledby where prohibited
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@jcsteh can you please review this. |
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| <p><a>Defines</a> a string value that labels the current element. See related <pref>aria-labelledby</pref>.</p> | ||
| <p>The purpose of <pref>aria-label</pref> is the same as that of <pref>aria-labelledby</pref>. It provides the user with a recognizable name of the object. The most common <a>accessibility <abbr title="Application Programing Interfaces">API</abbr></a> mapping for a label is the <a>accessible name</a> property.</p> | ||
| <p>If the label text is available in the DOM (i.e. typically visible text content), authors SHOULD use <pref>aria-labelledby</pref> and SHOULD NOT use <pref>aria-label</pref>. There may be instances where the name of an element cannot be determined programmatically from the DOM, and there are cases where referencing DOM content is not the desired user experience. Most host languages provide an attribute that could be used to name the element (e.g., the <code>title</code> attribute in [[HTML]]), yet this could present a browser tooltip. In the cases where DOM content or a tooltip is undesirable, authors MAY set the accessible name of the element using <pref>aria-label</pref>. As required by the <a href="#textalternativecomputation">accessible name and description computation</a>, user agents give precedence to <pref>aria-labelledby</pref> over <pref>aria-label</pref> when computing the accessible name property.</p> | ||
| <p>If the label text is available in the DOM (i.e. typically visible text content), authors SHOULD use <pref>aria-labelledby</pref> and SHOULD NOT use <pref>aria-label</pref>. There may be instances where the name of an element cannot be determined programmatically from the DOM, and there are cases where referencing DOM content is not the desired user experience. Most host languages provide an attribute that could be used to name the element (e.g., the <code>title</code> attribute in [[HTML]]), yet this could present a browser tooltip. In the cases where DOM content or a tooltip is undesirable, authors MAY set the accessible name of the element using <pref>aria-label</pref>, if the element does not <a href="#prohibitedattributes">prohibit</a> use of the attribute. Authors MUST NOT specify <code>aria-label</code> on an element which has an explicit or implicit WAI-ARIA role where <code>aria-label</code> is <a href="#prohibitedattributes">prohibited</a>. As required by the <a href="#textalternativecomputation">accessible name and description computation</a>, user agents give precedence to <pref>aria-labelledby</pref> over <pref>aria-label</pref> when computing the accessible name property.</p> |
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In the cases where DOM content or a tooltip is undesirable, authors MAY set the accessible name of the element using <pref>aria-label</pref>, if the element does not <a href="#prohibitedattributes">prohibit</a> use of the attribute. Authors MUST NOT specify <code>aria-label</code> on an element which has an explicit or implicit WAI-ARIA role where <code>aria-label</code> is <a href="#prohibitedattributes">prohibited</a>.
This felt redundant while reading... I looked back and realized it was not.
Reversing the two sentence may resolve it? E.g. list the rule first then exception, rather than exception before the rule.
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made a commit to try to address this - 7f6baae
Co-authored-by: James Craig <cookiecrook@users.noreply.github.com>
Co-authored-by: James Craig <cookiecrook@users.noreply.github.com>
@cookiecrook does this reordering help? I think it does, but just wanted to verify. Thank you.
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- link to definition of whitespace in the aria-braillelabel and aria-brailleroledescription, aria-roledescription sections - remove reference to whitespace from user agents must not aria-roledescription requirement - remove author error correction User Agents MUST NOT expose prohibited ARIA attributes statement from correcting for author errors section. - adds authors MUST NOT specify aria-roledescription on elements with roles where the attribute is prohibited. - removed non-normative "should" from aria-brailleroledescription - adds authors MUST NOT use aria-brailleroledescription where prohibited - adds authors MUST NOT use aria-label and aria-labelledby where prohibited Co-authored-by: James Craig <cookiecrook@users.noreply.github.com>
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Related to w3c/core-aam#128
Fixes #1476
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