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RE: Grid and aria-owns question

From: Bryan Garaventa <bryan.garaventa@ssbbartgroup.com>
Date: Fri, 28 Apr 2017 22:06:04 +0000
To: Matt King <a11ythinker@gmail.com>, 'Lars Holm Sørensen' <lhs@diversa.dk>, "w3c-wai-ig@w3.org" <w3c-wai-ig@w3.org>
Message-ID: <BN6PR03MB2785B7D70621FC9C5F2515E698130@BN6PR03MB2785.namprd03.prod.outlook.com>
"Also, you do not need aria-readonly."

Hi Matt,
When would you use aria-readonly on a grid?

It was my understanding that when you have an interactive grid, if the cells are not meant to do anything when activated it is readonly, but if they are meant to do something when activated, then it is not.

E.G The following landing page shows a readonly interactive Grid:

To make this actionable, check the Selectable checkbox and if you wish toggle aria-selected to checked as well, then focus back on the Grid and use the Spacebar to toggle selection.

I guess it can be argued that this still doesn't need aria-readonly, but what about the case when you have a row that includes some cells that are editable and others that are not, which is the case in this Grid if you check the Editable checkbox, where the row header cells are not editable wheras some of the others are.

Bryan Garaventa
Accessibility Fellow
SSB BART Group, Inc.
415.624.2709 (o)

From: Matt King [mailto:a11ythinker@gmail.com]
Sent: Thursday, April 27, 2017 10:50 AM
To: 'Lars Holm Sørensen' <lhs@diversa.dk>; w3c-wai-ig@w3.org
Subject: RE: Grid and aria-owns question


This is a creative structure- very interesting.

Your use of aria-owns is correct. You have found a Firefox bug that you should report to Mozilla.

It is not likely this will ever work in IE unless you can get screen reader devs to make it a priority.

Note that you should have role="presentation" on the `ul` elements.

Also, you do not need aria-readonly.

We now have a complete ARIA grid pattern and multiple functional examples in the ARIA Authoring Practices that I recommend you read:

Matt King

From: Lars Holm Sørensen [mailto:lhs@diversa.dk]
Sent: Thursday, April 27, 2017 7:40 AM
To: w3c-wai-ig@w3.org<mailto:w3c-wai-ig@w3.org>
Subject: Grid and aria-owns question

Hello WAI list

I am trying to construct a simple data table, from some list data by applying role="grid", role="row", role="columnheader", role="gridcell" and aria-owns.

In my simple example I try to construct a grid with 2 columns and 3 rows. Column 1 for fruits and column 2 for vegetables.
The first row is a header row and then follows two rows with data.

When testing with Jaws I get the expected result in Chrome. A grid with 2 columns and 3 rows and I can navigate it using the Jaws table navigation keys.

However in IE and FF I get different results.

They both show the header row perfectly.

Then follows two rows where each row only has a single column, but still in that single column it reads the data from both column 1 and column 2.

Then follows four columns, each showing data from one of the four gridcells.

Here comes the Jaws output from going through the grid by just pressing down arrow IN ff:

grid with 2 columns and 5 rows
Apple Potato
Banana Cucumber
grid end

Here comes the code:

<div role="grid" aria-readonly="true">

<!-- The header row. -->
<div role="row">
<li role="columnheader">Fruits</li>
<li role="columnheader">Vegetables</li>
<!-- eof header row-->

<!-- Add content to row one in the accessibility tree by using aria-owns.-->
<div role="row" id="row1" aria-owns="row1_col1 row1_col2"></div>

<!-- Add content to row to in the accessibility tree by using aria-owns.-->
<div role="row" id="row2" aria-owns="row2_col1 row2_col2"></div>

<!-- The two lists with the data we want to go into the grid.-->
<ul   id="col1">
<li role="gridcell" id="row1_col1">Apple</li>
<li role="gridcell" id="row2_col1">Banana</li>

<ul  id="col2">
<li role="gridcell" id="row1_col2">Potato</li>
<li role="gridcell"  id="row2_col2" >Cucumber</li>

<!-- eof grid-->

Do you have any ideas why it doesn't  work the way I expect it to in IE and FF?

Am I using aria-owns in an inappropriate way?

Best regards:
Lars Holm Sørensen

De bedste hilsner
Lars Holm Sørensen
Diversa ApS
Tlf: 25 21 17 41

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Received on Friday, 28 April 2017 22:06:41 UTC

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