301626 - AccessibleObject returned for some A tags is for wrong textnode

Status: RESOLVED FIXED

(Firefox :: Disability Access, defect)

Description

[Tim McHyde]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b3) Gecko/20050712 Firefox/1.0+
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b3) Gecko/20050712 Firefox/1.0+

Using GetAccessibleObjectFromPoint I normally get the right object that has the
actual text under that point.  But at times i get an adjacent node which does
not have the text under the point.


Reproducible: Always

Steps to Reproduce:
Load up this html and try using my test program from
bugzilla.mozilla.org/show_bug.cgi?id=297697 over the two anchor tags

<ul><br>
<li>Go to Pharaoh and say to him, “Thus says the Lord, ‘Let My people go that
they may serve ME!’” <a
href="http://biblegateway.com/cgi-bin/bible?language=english&amp;version=NASB&amp;passage=Exodus+8%3A1"
title="Bible Gateway">Exodus 8:1</a><br>

</li><li>Rise early in the morning and present yourself before Pharaoh, as he
comes out to the water, and say to him, “Thus says the Lord, ‘Let My people go,
that they may serve ME!’” <a
href="http://biblegateway.com/cgi-bin/bible?language=english&amp;version=NASB&amp;passage=Exodus+8%3A20"
title="Bible Gateway">Exodus 8:20</a><br>
1.
2.
3.

Actual Results:  
the first anchor's text is produced ("Exodus 8:1") but the second anchor's does
not come up ("Exodus 8:20") but instead you get "Rise up early in the
morning..." as the text.

Expected Results:  
Given Exodus 8:20

Comment 1

[Aaron Leventhal]

What's happening is that the anchor is inside a larger text object, and the
point is inside both. We're returning the first object we see.

I agree it's a bug.

Comment 2

[Aaron Leventhal]

It's because there were in list items :)

Comment 3

[Aaron Leventhal]

Attachment: Simple patch: a list accessible should inherit from a block accessible

Comment 4

[Aaron Leventhal]

Checking in nsHTMLTextAccessible.cpp;
/cvsroot/mozilla/accessible/src/html/nsHTMLTextAccessible.cpp,v  <-- 
nsHTMLTextAccessible.cpp
new revision: 1.44; previous revision: 1.43
done
Checking in nsHTMLTextAccessible.h;
/cvsroot/mozilla/accessible/src/html/nsHTMLTextAccessible.h,v  <-- 
nsHTMLTextAccessible.h
new revision: 1.33; previous revision: 1.32
done