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Posted to derby-dev@db.apache.org by Laura Stewart <sc...@gmail.com> on 2007/01/16 22:55:22 UTC
Graphic Alt text (for accessibility) does not appear in Firefox (does appear in IE) - Derby-1842
For Derby-1842, I updated the alternate text (aka Alt text). The Alt
text appears when you hover your mouse pointer over a graphic image in
Internet Explorer but not in Firefox.
Does anyone know why?
https://issues.apache.org/jira/browse/DERBY-1842
--
Laura Stewart
Re: Graphic Alt text (for accessibility) does not appear in Firefox
(does appear in IE) - Derby-1842
Posted by "Bernt M. Johnsen" <Be...@Sun.COM>.
>>>>>>>>>>>> Laura Stewart wrote (2007-01-17 10:45:57):
> On 1/17/07, Bernt M. Johnsen <Be...@sun.com> wrote:
> >The HTML standard does not require a browser to show the alt text
> >unless the image cannot be rendered:
> >
> > User agents must render alternate text when they cannot support
> > images, they cannot support a certain image type or when they
> > are configured not to display images. (HTML 4.01)
> >
> >Firefox is a graphical browser and as such does not ahev to display
> >it, while w3m and lynx are text only browsers and "must" render the
> >text.
> >
>
> Are you saying that if I had a screen reader (for people unable to see
> the screen, which is why the alt text is added to the image in the
> first place) that the text would be read by the screen reader, even
> though it doesn't appear when I mouse over the text?
I have no experience with screen readers, so I can't answer the
question. In Firefox, you may see the text by right-clicking the image
and choose "Properties", or if you disable image load, the alt-text is
shown instead. Wether that is useful for the visually impaired or not,
I have no idea. My point was just that Firefox was standards
compliant.
--
Bernt Marius Johnsen, Database Technology Group,
Staff Engineer, Technical Lead Derby/Java DB
Sun Microsystems, Trondheim, Norway
Re: Graphic Alt text (for accessibility) does not appear in Firefox
(does appear in IE) - Derby-1842
Posted by "Jean T. Anderson" <jt...@bristowhill.com>.
Kim Haase wrote:
> According to our style guide, yes, screen readers do read the alt text.
> The style guide also says that alt text must be 150 characters or fewer
> in length. For a description longer than 150 characters, use the
> longdesc attribute of the img tag (in HTML; seems to be longdescref in
> DITA); this is also read by screen readers.
It sounds like testing accessibility with normal browsers might not be a
sure approach. Does anyone know of any open source screen readers?
-jean
> Kim
>
> Laura Stewart wrote:
>
>> On 1/17/07, Bernt M. Johnsen <Be...@sun.com> wrote:
>>
>>> The HTML standard does not require a browser to show the alt text
>>> unless the image cannot be rendered:
>>>
>>> User agents must render alternate text when they cannot support
>>> images, they cannot support a certain image type or when they
>>> are configured not to display images. (HTML 4.01)
>>>
>>> Firefox is a graphical browser and as such does not ahev to display
>>> it, while w3m and lynx are text only browsers and "must" render the
>>> text.
>>>
>>
>> Are you saying that if I had a screen reader (for people unable to see
>> the screen, which is why the alt text is added to the image in the
>> first place) that the text would be read by the screen reader, even
>> though it doesn't appear when I mouse over the text?
>>
>>
Re: Graphic Alt text (for accessibility) does not appear in Firefox
(does appear in IE) - Derby-1842
Posted by Kim Haase <Ca...@Sun.COM>.
According to our style guide, yes, screen readers do read the alt text.
The style guide also says that alt text must be 150 characters or fewer
in length. For a description longer than 150 characters, use the
longdesc attribute of the img tag (in HTML; seems to be longdescref in
DITA); this is also read by screen readers.
Kim
Laura Stewart wrote:
> On 1/17/07, Bernt M. Johnsen <Be...@sun.com> wrote:
>> The HTML standard does not require a browser to show the alt text
>> unless the image cannot be rendered:
>>
>> User agents must render alternate text when they cannot support
>> images, they cannot support a certain image type or when they
>> are configured not to display images. (HTML 4.01)
>>
>> Firefox is a graphical browser and as such does not ahev to display
>> it, while w3m and lynx are text only browsers and "must" render the
>> text.
>>
>
> Are you saying that if I had a screen reader (for people unable to see
> the screen, which is why the alt text is added to the image in the
> first place) that the text would be read by the screen reader, even
> though it doesn't appear when I mouse over the text?
>
>
Re: Graphic Alt text (for accessibility) does not appear in Firefox (does appear in IE) - Derby-1842
Posted by Laura Stewart <sc...@gmail.com>.
On 1/17/07, Bernt M. Johnsen <Be...@sun.com> wrote:
> The HTML standard does not require a browser to show the alt text
> unless the image cannot be rendered:
>
> User agents must render alternate text when they cannot support
> images, they cannot support a certain image type or when they
> are configured not to display images. (HTML 4.01)
>
> Firefox is a graphical browser and as such does not ahev to display
> it, while w3m and lynx are text only browsers and "must" render the
> text.
>
Are you saying that if I had a screen reader (for people unable to see
the screen, which is why the alt text is added to the image in the
first place) that the text would be read by the screen reader, even
though it doesn't appear when I mouse over the text?
--
Laura Stewart
Re: Graphic Alt text (for accessibility) does not appear in Firefox
(does appear in IE) - Derby-1842
Posted by John Embretsen <Jo...@Sun.COM>.
Bernt M. Johnsen wrote:
>>>>>>>>>>>>> Laura Stewart wrote (2007-01-16 13:55:22):
>> For Derby-1842, I updated the alternate text (aka Alt text). The Alt
>> text appears when you hover your mouse pointer over a graphic image in
>> Internet Explorer but not in Firefox.
[snip]
> Firefox is a graphical browser and as such does not ahev to display
> it, while w3m and lynx are text only browsers and "must" render the
> text.
Unless, of course, you configure firefox not to load pictures automatically, in
which case it does display the Alt text instead (though still not on mouseover),
as it should.
--
John
Re: Graphic Alt text (for accessibility) does not appear in Firefox
(does appear in IE) - Derby-1842
Posted by "Bernt M. Johnsen" <Be...@Sun.COM>.
>>>>>>>>>>>> Laura Stewart wrote (2007-01-16 13:55:22):
> For Derby-1842, I updated the alternate text (aka Alt text). The Alt
> text appears when you hover your mouse pointer over a graphic image in
> Internet Explorer but not in Firefox.
>
> Does anyone know why?
The HTML standard does not require a browser to show the alt text
unless the image cannot be rendered:
User agents must render alternate text when they cannot support
images, they cannot support a certain image type or when they
are configured not to display images. (HTML 4.01)
Firefox is a graphical browser and as such does not ahev to display
it, while w3m and lynx are text only browsers and "must" render the
text.
--
Bernt Marius Johnsen, Database Technology Group,
Staff Engineer, Technical Lead Derby/Java DB
Sun Microsystems, Trondheim, Norway
Re: Graphic Alt text (for accessibility) does not appear in Firefox
(does appear in IE) - Derby-1842
Posted by Daniel John Debrunner <dj...@apache.org>.
Jean T. Anderson wrote:
> Laura Stewart wrote:
>> For Derby-1842, I updated the alternate text (aka Alt text). The Alt
>> text appears when you hover your mouse pointer over a graphic image in
>> Internet Explorer but not in Firefox.
>>
>> Does anyone know why?
>>
>> https://issues.apache.org/jira/browse/DERBY-1842
>>
>
> A google search popped up this reference which says firefox uses the alt
> tag as intended:
> http://www.w3schools.com/tags/tag_img.asp
>
> Look at the section titled "Mozilla Firefox and the alt Attribute." It
> says "title" enables mouseover comments, so I tried that with one of
> your files and it worked (mouseover now displays the info); however, it
> truncates everything past the first .
>
> On Safari, mouseover displays nothing when "alt" is used, but shows the
> complete text when "title" is used.
So it sounds like the tags should be used as intended.
alt for the alternative text
title for a title of the image.
In firefox one can see the alternate text by right clicking on the image
and selecting properties.
Dan.
Re: Graphic Alt text (for accessibility) does not appear in Firefox
(does appear in IE) - Derby-1842
Posted by "Jean T. Anderson" <jt...@bristowhill.com>.
Laura Stewart wrote:
> For Derby-1842, I updated the alternate text (aka Alt text). The Alt
> text appears when you hover your mouse pointer over a graphic image in
> Internet Explorer but not in Firefox.
>
> Does anyone know why?
>
> https://issues.apache.org/jira/browse/DERBY-1842
>
A google search popped up this reference which says firefox uses the alt
tag as intended:
http://www.w3schools.com/tags/tag_img.asp
Look at the section titled "Mozilla Firefox and the alt Attribute." It
says "title" enables mouseover comments, so I tried that with one of
your files and it worked (mouseover now displays the info); however, it
truncates everything past the first .
On Safari, mouseover displays nothing when "alt" is used, but shows the
complete text when "title" is used.
-jean