Rule 4.13.2
Summary
This test consists in detecting all the links allowing to download a time-based media file, all the tags allowing to display a time-based media and all the tags allowing to display a no time-based media.
Business description
Criterion
Test
Description
Chaque média temporel et non temporel qui possède une alternative compatible avec les technologies d’assistance, vérifie-t-il une de ces conditions ?
- L’alternative est adjacente au média temporel ou non temporel.
- L’alternative est accessible via un lien ou bouton adjacent.
- Un mécanisme permet de remplacer le média temporel ou non temporel par son alternative.
Particular cases (criterion 4.13)
Il existe une gestion de cas particulier lorsque le média temporel ou non temporel est utilisé à des fins décoratives (c’est-à-dire qu’il n’apporte aucune information). Dans ces situations, le critère est non applicable.
Level
A
Technical description
Scope
Page
Decision level
Semi-Decidable
Algorithm
Selection
Set1
- All links to download a time-based media file
- AND all the following tags:
<audio><bgsound><video><object><embed><svg><canvas>
css selector :
audio[src],
audio:has(source[src]),
bgsound,
video[src] ,
video:has(source[src]),
svg,
canvas,
object[data],
embed[src]
a[href~=(?i)\.(mp4|avi|wmv|mov|Xvid|mkv|mka|mks|FLV|rmvb|MPA|WMA|MP2|M2P|DIF|DV|VOB|VRO|rmvb|vivo|bik|ASF|ifo|mts|mxf|nds|rv|web|wlmp|wmp|ogv)]
a[href~=(?i)\.(WAV|CDA|MID|MP2|MP3|mp3PRO|MOD|RM|RAM|WMA|Ogg|oga|AIF|AIFF|AA|AAC|M4A|VQF|AU|M3U|RIFF|BWF|CAF|PCM|RAW|FLAC|ALAC|AC3|ACC)]Process
Test1
Test whether Set1 is not empty. If yes, raise a MessageA.
MessageA : Check manually the elements of the scope
- code: ManualCheckOnElements
- status: Pre-qualified
- parameter: snippet
- present in source: yes
Analysis
Not Applicable
- The page has no tags allowing to display a no time-based media
- The page has no tags allowing to display a time-based media
- The page has no link to download a time-based media file.
Pre-qualified
In all other cases