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Disabled link cleanup (#34886)

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* Disabled link cleanup

per https://www.w3.org/TR/html-aria/#docconformance

> It is NOT RECOMMENDED to use `aria-disabled="true"` on an `a` element with an `href` attribute.
>
>NOTE
>If a link needs to be "disabled", remove the `href` attribute.

This PR removes the unnecessary `href="#"`, `tabindex="-1"`, and `aria-disabled="true"` from disabled links in both docs pages and examples. `aria-disabled="true"` *is* kept for disabled link-based buttons (that have `role="button"`) as there it's appropriate to use (you *want* to convey to assistive technologies that this thing you're claiming is a button is also disabled at the moment)

Further, the PR extends the "Link functionality caveat" to show the "proper" way (removing `href` and adding `.disabled` class only) to disable a link, but then explains what to do if that's not possible (and then keeps an example with all the traditional `href="#" tabindex="-1" aria-disabled="true"`, but explains clearly that it's not ideal). Same sort of explanation is also added to the pointer event utilities page

* Turn big note into actual normal doc text

Co-authored-by: Mark Otto <markd.otto@gmail.com>

Co-authored-by: Mark Otto <markd.otto@gmail.com>
Co-authored-by: XhmikosR <xhmikosr@gmail.com>
This commit is contained in:
Patrick H. Lauke
2021-09-06 20:14:21 +01:00
committed by GitHub
parent 16aab88a67
commit aa06dffdf6
19 changed files with 76 additions and 69 deletions
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site/content/docs/5.1/examples/cheatsheet/index.html
+5 -5
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@@ -1156,7 +1156,7 @@ body_class: "bg-light"
<a class="nav-link active" aria-current="page" href="#">Active</a>
<a class="nav-link" href="#">Link</a>
<a class="nav-link" href="#">Link</a>
<a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
<a class="nav-link disabled">Disabled</a>
</nav>
{{< /example >}}
@@ -1193,7 +1193,7 @@ body_class: "bg-light"
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
<a class="nav-link disabled">Disabled</a>
</li>
</ul>
{{< /example >}}
@@ -1236,7 +1236,7 @@ body_class: "bg-light"
</ul>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
<a class="nav-link disabled">Disabled</a>
</li>
</ul>
<form class="d-flex">
@@ -1275,7 +1275,7 @@ body_class: "bg-light"
</ul>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
<a class="nav-link disabled">Disabled</a>
</li>
</ul>
<form class="d-flex">
@@ -1331,7 +1331,7 @@ body_class: "bg-light"
<nav aria-label="Another pagination example">
<ul class="pagination pagination-lg flex-wrap">
<li class="page-item disabled">
<a class="page-link" href="#" tabindex="-1" aria-disabled="true">Previous</a>
<a class="page-link">Previous</a>
</li>
<li class="page-item"><a class="page-link" href="#">1</a></li>
<li class="page-item active" aria-current="page">