| Title | Long description for complex image: image embedded by object; long description inside object; no longdesc attribute |
|---|---|
| Description | A document with an image that represents a map of the Mediterranean in 180 AD.
The document contains an object element that embeds the map in GIF format.
The object element has a title attribute that identifies the image, but the image is too complex to be described in an attribute.
Inside the object element is a long description that identifies the image and conveys the same information.
|
| Creator | BenToWeb (Christophe.Strobbe@…) |
| Rights | Copyright BenToWeb 2005-2007 |
| Language | English |
| Date | 2005-08-30 |
| Status | validated |
Technologies are markup languages or data formats. If the technology is a markup language, “features” refers to elements and attributes.
XHTML™ 1.0 The Extensible HyperText Markup Language (Second Edition)
Feature: object
(namespace: http://www.w3.org/1999/xhtml)
.
Technical specification:
General Inclusion: The object element
.
Feature: object
(namespace: http://www.w3.org/1999/xhtml)
.
Technical specification: The title attribute .
This test case is intended to fail because the title attribute provides a short description but the text alternative is nested inside the object.
Accessibility expert.
“Rules” refer to success criteria in WCAG 2.0, checkpoints in WCAG 1.0 and similar requirements.
The test case fails the following success criterion at line 11, column 79: http://www.w3.org/TR/2007/WD-WCAG20-20070517/Overview.html#text-equiv-all.
The test case fails the following success criterion at line 11, column 192: http://www.w3.org/TR/2007/WD-WCAG20-20070517/Overview.html#text-equiv-all.
The image has a short text description as well as a long one. User testing provided the following results: users of screenreaders with Internet Explorer 6 or Firefox had problems accessing the long description of the map. However, more data are needed.
The object element has a title attribute and a long description inside its content.
This test is identical to sc1.1.1_l1_029 but the img's title attribute is moved to the object element, the fallback image was removed and thereby also the longdesc link.
Since browsers do not necessarily provide access to the content of the object if the object can be displayed,
it is not certain that the long description is available to users.
(Internet Explorer does not support object, so the test will not work in this browser.)
The test case fails the following success criterion at line 11, column 79: http://www.w3.org/TR/2006/WD-WCAG20-20060427/guidelines.html#text-equiv-all.
The test case fails the following success criterion at line 11, column 192: http://www.w3.org/TR/2006/WD-WCAG20-20060427/guidelines.html#text-equiv-all.
The image has a short text description as well as a long one. User testing provided the following results: users of screenreaders with Internet Explorer 6 or Firefox had problems accessing the long description of the map. However, more data are needed.
This test case maps to technique H53: Using the body of the object element.
The object element has a title attribute and a long description inside its content.
This test is identical to sc1.1.1_l1_029 but the img's title attribute is moved to the object element, the fallback image was removed and thereby also the longdesc link.
Since browsers do not necessarily provide access to the content of the object if the object can be displayed,
it is not certain that the long description is available to users.
(Internet Explorer does not support object, so the test will not work in this browser.)
The test case needs review before it can be established if it passes or fails the following success criterion: http://www.w3.org/TR/2006/WD-WCAG20-20050630/#text-equiv-informative. The code that causes doubt can be found at line 11, column 79.
The test case needs review before it can be established if it passes or fails the following success criterion: http://www.w3.org/TR/2006/WD-WCAG20-20050630/#text-equiv-informative. The code that causes doubt can be found at line 11, column 192.
The image has a short text description as well as a long one.
The object element has a title attribute and a long description inside its content.
This test is identical to xhtml1_wcag2_20050630_1.1_l1_sc1_029 but the img's title attribute is moved to the object element, the fallback image was removed and thereby also the longdesc link.
Since browsers do not necessarily provide access to the content of the object if the object can be displayed,
it is not certain that the long description is available to users.
(Internet Explorer does not support object, so the test will not work in this browser.)