[Webkit-unassigned] [Bug 196769] New: AX: [ATK] roleIsTextType() is likely missing a bunch of roles

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=196769

            Bug ID: 196769
           Summary: AX: [ATK] roleIsTextType() is likely missing a bunch
                    of roles
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jdiggs at igalia.com
                CC: webkit-bug-importer at group.apple.com

ATK's roleIsTextType() [1] is looking at a very finite number of roles. And most of those are, largely, HTML-based. There are a lot of ARIA roles now. And looking at the AccessibilityRole instances [2], most are not in the list of roles for which roleIsTextType() returns True. What *might* make sense is to instead provide a list of roles which should NOT implement AtkText.

* Widgets which are not text controls should NOT (e.g. radio buttons, checkboxes, etc. should not;
  textareas and other text inputs should).
* WebAreas should NOT (We don't want all text within the WebArea showing up. And that would be a
  performance nightmare.)
* Things that we know don't themselves contain text (e.g. iframes) should NOT.

There's nothing especially bad that would result from having an accessible object implementing AtkText and atk_text_get_text() returning an empty string. On the flip side, it is especially bad if we have an accessible object with text failing to implement AtkText because then we have no way for ATs to get the text; there are no caret-moved events; etc.

[1] At the time of this writing, here:
    https://trac.webkit.org/browser/webkit/trunk/Source/WebCore/accessibility/atk/WebKitAccessible.cpp#L1172
[2] At the time of this writing, here:
    https://trac.webkit.org/browser/webkit/trunk/Source/WebCore/accessibility/AccessibilityObjectInterface.h#L54

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20190410/1f990dce/attachment.html>