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Re: [orca-list] Progress update on the "List of" dialogs

I am still wondering if I can try all this latest stuff on Ubuntu 12.04.
It is very sad if all this can only be done on a condition that latest infra structure be used. 
Happy hacking.
Krishnakant.

On 02/05/2013 04:00 PM, José Vilmar Estácio de Souza wrote:

Hi Joanie.
Maybe I'm wrong, but for me the keys initially chosen present problems since they can be defined as shortcut keys in the system. 
I know you already know this since you mentioned the ctrl + alt + l.
I found in my environment two conflicts, ctrl+alt+o and ctrl+alt+u, both used to start different versions of orca. 
Thanks.

On 02/05/2013 05:49 AM, Joanmarie Diggs wrote:

Hey all.

Since a number of you have been wanting this, I have just committed to
master the largely functional, but still in progress, "List of" dialog
support. While it's not done, it's good enough for testing. Here's where
things stand:

1. The bindings. Almost always, the modifier is Ctrl + Alt. And almost
    always the key is the same as the default binding for that object
    type. As a result, you have:

    Ctrl + Alt + B: List of buttons
    Ctrl + Alt + C: List of comboboxes
    Ctrl + Alt + E: List of entries
    Ctrl + Alt + F: List of form fields (this is the odd duck)
    Ctrl + Alt + H: List of headings
    Ctrl + Alt + 1: List of headings at level 1
    Ctrl + Alt + 2: List of headings at level 2
    Ctrl + Alt + 3: List of headings at level 3
    Ctrl + Alt + 4: List of headings at level 4
    Ctrl + Alt + 5: List of headings at level 5
    Ctrl + Alt + 6: List of headings at level 6
    Ctrl + Alt + I: List of list items
    Ctrl + Alt + O: List of "large objects" (aka text chunks)
    Ctrl + Alt + P: List of paragraphs
    Ctrl + Alt + Q: List of blockquotes
    Ctrl + Alt + R: List of radio buttons
    Ctrl + Alt + U: List of unvisited links
    Ctrl + Alt + V: List of visited links
    Ctrl + Alt + X: List of checkboxes

    There are currently two unbound other "list of dialogs":
    List of lists - turns out Ctrl + Alt + L locks the session <grins>
    List of links - there is no "plain ol' links" command, so no key yet
    Candidate bindings for the above welcome.

    As for the other object types:
    * I still need to figure out how best to present tables and make
      a decision about cells.
    * Our existing landmark and live region code isn't very reliable
      period, so I'd like to debug that before I add dialog support.
    * As for anchors and separators. Before I debug the existing (non
      dialog related) code for them, is anyone actually using them for
      navigation? If they are completely useless, we can nuke them.

2. The dialog itself:

    The default button is Jump to. There is also an Activate button
    which becomes sensitive as appropriate (based on AtspiAction
    exposure to us).

    The information about each object is arranged in columns. This
    means you can read the full row if you want lots of info; just
    the cell if you don't. (Remember Orca + F11 toggles this.) You
    can also sort the columns by moving focus to the header and
    pressing Space.

    Type-ahead search is enabled and associated with the first column
    which is where the most important thing (label/name) is.

    My to-do list in the dialog area includes refinement, such as:
    * Currently there is no spoken or brailled indication of how many
      matches were found. You can get this via where am I in the table
      in the meantime.
    * Currently the dialog pops up when there are 0 items. Orca should
      just present the fact that there are no matches and not waste time
      showing a dialog.
    * Currently you are placed at the top of the list. Orca makes no
      attempt (yet) to position you in the list based on where you were
      on the page.
    * It's rare, but on occasion, we have no label/name/text for an
      object. So we either need to try harder for those oddball items
      or verify if they are useless and never should have passed the
      match test in the first place.
    * It would be nice for Orca to say something when the table is
      resorted. That's not limited to this feature. That's in general.
      It may involve work on both the GTK side and the Orca side.

    All of the above I am working on and will keep you posted.

3. Other known issues:
If you are looking for objects on a ginormous page, there is a chance 
    the request will time out. The timeout is something AT-SPI2 does to
prevent lock-ups and has been wonderful in that regard. When there is 
    such an error, Orca will present a message so you don't wonder why
nothing is happening. For me the timeouts have been rare, but they do 
    occur with Firefox. (The same pages do not time out with WebKitGtk.)
There's not a lot I can do here -- and anything I might be able to do 
    would be a sad hack.

    When reading text objects (e.g. paragraphs), they are treated like
    pure text objects, including links. This was by design. If you want
    Orca to announce the roles and such, you could read the paragraph
    in the page itself or by SayAll. If you want to quickly skim through
    paragraphs and other text objects for content, I think you'll find
    this helpful.

Lastly, I hope you will find that while it's not quite done, it is
pretty darned functional. And, again, I'll keep working on it.

Please let me know if you have any questions. Thanks!!
--joanie
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