Re: Action-1293 Proposal

Hi, again. I think I have an addition to attributes definition, you gave,
which would make me ok with attributes. Let me share it with you.

aria-rowindex

If aria-rowindex attribute value on the item is lesser than previous item
row index then the attribute is ignored. If aria-rowsize attribute value is
lesser then subsequent items number then the attribute is ignored.

aria-colindex

Same text as aria-rowindex plus "aria-colindex is ignored on any cell not
belonging to the first presented row".

Also, I would like more if aria-rsize and aria-csize were renamed to
aria-rowsize and aria-colsize as more descriptive names.

Thanks.
Alex.


On Mon, Mar 9, 2015 at 1:49 PM, Alexander Surkov <surkov.alexander@gmail.com
> wrote:

> Hi. I still dislike the definition of aria-colindex
>
> "Defines an element's cell or gridcell column number or position in the
> current set of columns table"
>
> since it allows to move table cells in the table. You can easily do
> sorting:
>
> <table role="grid">
>   <row>
>     <td role="gridcell" aria-colindex="8" aria-csize="16">A</td>
>     <td role="gridcell" aria-colindex="7" aria-csize="16">B</td>
>     <td role="gridcell" aria-colindex="6" aria-csize="16">C</td>
>     <td role="gridcell" aria-colindex="5" aria-csize="16">D</td>
>   </row>
> ...
> </table>
>
> This statement is incorrect in case of IA2 and ATK
>
> "This property is not automatically caldulated by the user agent."
>
> because every cell has to have column and row index in these APIs, so if
> it's not provided by ARIA then the browser has to calculate it.
>
> Same concerns are applicable to aria-rowindex property.
>
> Thanks.
> Alex.
>
> On Mon, Mar 9, 2015 at 10:46 AM, Richard Schwerdtfeger <schwer@us.ibm.com>
> wrote:
>
>> for role="row" add aria-rowindex and aria-rsize
>> for role="cell" and gridcell add aria-colindex, and aria-csize
>>
>> *aria-colindex** (property)*
>>
>> Defines an element's cell or gridcell column number or position in the
>> current set of columns table, grid, or treegrid. See related aria-csize.
>>
>> This property is not automatically caldulated by the user agent. The
>> default value is -1 which means indeterminant.
>>
>> The following example shows columns 5 through 8 in a set of 16.
>>
>> <table role="grid">
>>   <row>
>>      <td role="gridcell" aria-colindex="5" aria-csize="16">A</td>
>>      <td role="gridcell" aria-colindex="6" aria-csize="16">B</td>
>>     <td role="gridcell" aria-colindex="7" aria-csize="16">C</td>
>>     <td role="gridcell" aria-colindex="8" aria-csize="16">D</td>
>>   </row>
>> ...
>> </table>
>>
>>
>> *aria-rowindex** (property)*
>>
>> Defines a *element* <http://www.w3.org/TR/wai-aria-1.1/#dfn-element>'s
>> row number or position in the current set of rows table, grid, or treegrid.
>> It is not required if all row elements in the set are present in the DOM.
>> See related aria-rsize
>>
>> If all items in a set are present in the document structure, it is not
>> necessary to set this *attribute*
>> <http://www.w3.org/TR/wai-aria-1.1/#dfn-attribute>, as the *user agent*
>> <http://www.w3.org/TR/wai-aria-1.1/#dfn-user-agent> can automatically
>> calculate the set size and position for each item. However, if only a
>> portion of the set is present in the document structure at a given moment,
>> this *property* <http://www.w3.org/TR/wai-aria-1.1/#dfn-property> is
>> needed to provide an explicit indication of an element's position.
>>
>> When applied to an element having a role of "row" the user agent must
>> expose the proprety to assistive technologies on all descendant cells and
>> gridcells in addition to the row it is applied to.
>>
>> The following example shows rows 3 through 5 in a set of 5.
>>
>> <table>
>>   <row aria-rowindex="3" aria-rsize="5">
>>      <td>A</td>
>>      <td>B</td>
>>      <td>C</td>
>>   </row>
>>   <row aria-rowindex="4" aria-rsize="5">
>>      <td>A</td>
>>      <td>B</td>
>>      <td>C</td>
>>   </row>
>>   <row aria-rowindex="5" aria-rsize="5">
>>      <td>A</td>
>>      <td>B</td>
>>      <td>C</td>
>>   </row>
>> </table>
>>
>> *aria-csize** (property) *
>>
>> Defines the number of columns in the current table or grid's set of
>> columns.
>>
>> This *property* <http://www.w3.org/TR/wai-aria-1.1/#dfn-property> is
>> marked on the members of a set, not the container element that collects the
>> members of the set. To orient the user by saying an element is "item X out
>> of Y," the *assistive technologies*
>> <http://www.w3.org/TR/wai-aria-1.1/#dfn-assistive-technologies> would
>> use X equal to the aria-colindex attribute and aria-csize equal to the
>> aria-colsize attribute.
>>
>> This property is not automatically caldulated by the user agent. The
>> default value is -1 which means indeterminate.
>>
>> The following example shows items 5 through 8 in a set of 16.
>>
>> <table role="grid">
>>   <row>
>>      <td role="gridcell" aria-colindex="5" aria-csize="16">A</td>
>>      <td role="gridcell" aria-colindex="6" aria-csize="16">B</td>
>>     <td role="gridcell" aria-colindex="7" aria-csize="16">C</td>
>>     <td role="gridcell" aria-colindex="8" aria-csize="16">D</td>
>>   </row>
>> ...
>> </table>
>>
>>
>> *aria-rsize** (property)*
>>
>> Defines the number of rows in the current set of rows within a table,
>> grid, or treegrid. Not required if all elements in the set are present in
>> the DOM. See related *aria-posinset*
>> <http://www.w3.org/TR/wai-aria-1.1/#aria-posinset>.
>>
>> This *property* <http://www.w3.org/TR/wai-aria-1.1/#dfn-property> is
>> marked on rows, or cells or gridcells contained within the containing row.
>> To orient the user by saying an element is "item X out of Y," the *assistive
>> technologies*
>> <http://www.w3.org/TR/wai-aria-1.1/#dfn-assistive-technologies> would
>> use X equal to the aria-rowindex *attribute*
>> <http://www.w3.org/TR/wai-aria-1.1/#dfn-attribute> and Y equal to the
>> aria-rsize attribute.
>>
>> If all items in a set are present in the document structure, it is not
>> necessary to set this property, as the *user agent*
>> <http://www.w3.org/TR/wai-aria-1.1/#dfn-user-agent> can automatically
>> calculate the set size and position for each item. However, if only a
>> portion of the set is present in the document structure at a given moment
>> (in order to reduce document size), this property is needed to provide an
>> explicit indication of set size.
>>
>> When applied to an element having a role of "row" the user agent must
>> expose the proprety to assistive technologies on all descendant cells and
>> gridcells unless overridden by  applying the property directly to a
>> descendant cell or gridcell.
>>
>> The following example shows rows 3 through 5 in a set of 5.
>>
>> <table>
>>   <row aria-rowindex="3" aria-rsize="5">
>>      <td>A</td>
>>      <td>B</td>
>>      <td>C</td>
>>   </row>
>>   <row aria-rowindex="4" aria-rsize="5">
>>      <td>A</td>
>>      <td>B</td>
>>      <td>C</td>
>>   </row>
>>   <row aria-rowindex="5" aria-rsize="5">
>>      <td>A</td>
>>      <td>B</td>
>>      <td>C</td>
>>   </row>
>> </table>
>>
>> Note: need to coordinate with Steve Faulkner new native host language
>> semantics for TD and Table elements.
>>
>>
>> Rich Schwerdtfeger
>>
>>
>