16f6c0aecf
Inline adoc files when they are included exactly once. Also fix language tags because this inlining gives us better information on what language the code is written in.
63 lines
1.7 KiB
Plaintext
63 lines
1.7 KiB
Plaintext
== Why is this an issue?
|
|
|
|
Assistive technologies, such as screen readers, will not be able to render ``++<object>++`` elements, in such cases it is the content of the ``++<object>++`` which is provided to the user. This alternative content needs to be accessible or the screen readers won't be able to use it. For example, if an ``++<img>++`` is used it must contain an ``++alt++`` attribute (see corresponding rule Web:ImgWithoutAltCheck).
|
|
|
|
|
|
This rule raises an issue when an ``++<object>++`` tag does not have any alternative content.
|
|
|
|
|
|
=== Noncompliant code example
|
|
|
|
[source,html]
|
|
----
|
|
<object></object> <!-- Noncompliant -->
|
|
|
|
<object>
|
|
<object></object> <!-- Noncompliant -->
|
|
</object>
|
|
----
|
|
|
|
|
|
=== Compliant solution
|
|
|
|
[source,html]
|
|
----
|
|
<object>This application shows the simulation of two particles colliding</object>
|
|
|
|
<object>
|
|
<img src="flower.png" alt="Flower growing in a pot" />
|
|
</object>
|
|
|
|
<object>
|
|
<object>
|
|
This application shows the simulation of two particles colliding
|
|
</object>
|
|
</object>
|
|
----
|
|
|
|
|
|
== Resources
|
|
|
|
* https://www.w3.org/TR/WCAG20-TECHS/H53.html[WCAG2, H53] - Using the body of the object element
|
|
* https://www.w3.org/WAI/WCAG21/quickref/?versions=2.0#qr-text-equiv-all[WCAG2, 1.1.1] - Non-text Content
|
|
* https://www.w3.org/WAI/WCAG21/quickref/?versions=2.0#qr-media-equiv-audio-desc[WCAG2, 1.2.3] - Audio Description or Media Alternative (Prerecorded)
|
|
* https://www.w3.org/WAI/WCAG21/quickref/?versions=2.0#qr-media-equiv-text-doc[WCAG2, 1.2.8] - Media Alternative (Prerecorded)
|
|
|
|
ifdef::env-github,rspecator-view[]
|
|
|
|
'''
|
|
== Implementation Specification
|
|
(visible only on this page)
|
|
|
|
=== Message
|
|
|
|
Add an accessible content to this "<object>" tag.
|
|
|
|
|
|
=== Highlighting
|
|
|
|
The opening <object> tag without its content
|
|
|
|
|
|
endif::env-github,rspecator-view[]
|