[Webkit-unassigned] [Bug 72382] [Gtk] atk_text_get_text_at_offset() sometimes fails to provide the correct line

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=72382





--- Comment #8 from Joanmarie Diggs <jdiggs at igalia.com>  2012-02-01 07:38:56 PST ---
(In reply to comment #7)
> (From update of attachment 123799 [details])
> While smoke testing some stuff with MiniBrowser and Orca, I found out today that this patch seems to cause some hangs when browsing with the caret

Found an Orca-free way to reliably reproduce the hang:

1. Launch the tester (below)
2. Launch Epiphany
3. Navigate via the caret

I get reliable and immediate hangs in Epiphany, along with the following pyatspi lookup error:

Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/pyatspi/registry.py", line 193, in eventWrapper
    return callback(event)
  File "./caret-moved.py", line 11, in listener
    print text.getTextAtOffset(event.detail1, pyatspi.TEXT_BOUNDARY_LINE_START)
  File "/usr/lib/python2.7/site-packages/pyatspi/text.py", line 443, in getTextAtOffset
    ret = exwrap(Atspi.Text.get_text_at_offset, self.obj, offset, type)
  File "/usr/lib/python2.7/site-packages/pyatspi/utils.py", line 339, in exwrap
    raise LookupError
LookupError

BTW pyatspi LookupErrors are the spawn of <insert your personal devil here>. I'll poke Mike Gorse.

--------------------
#!/usr/bin/python

import pyatspi

def listener(event):
    try:
        text = event.source.queryText()
    except NotImplementedError:
        return

    print text.getTextAtOffset(event.detail1, pyatspi.TEXT_BOUNDARY_LINE_START)

pyatspi.Registry.registerEventListener(listener, "object:text-caret-moved")
pyatspi.Registry.start()
--------------------

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