Thanks, Pete. Hi, Dominic. Are there any consumers for relation change events? From what I can tell I was never requested for it by AT vendor iirc.
ATK has generic property changed event and I find it nice, but MSAA has separate events for most of properties already [1], and I don't see a good way to implement it in IAccessible2 because of Windows event model. IAccessible2 has text changed event by newText/oldText hack but it doesn't really work for out process AT. We might have OBJECT_CHANGED event, but SHOW/HIDE bundle looks like appropriate workaround. I'm curious though to hear AT vendors on it. Thanks. Alex. [1] https://msdn.microsoft.com/en-us/library/windows/desktop/dd318066%28v=vs.85%29.aspx On Mon, Feb 23, 2015 at 11:51 AM, Pete Brunet <[email protected]> wrote: > Alex, et al. FYI > > On 2/23/15 10:29 AM, [email protected] wrote: > > https://bugs.linuxfoundation.org/show_bug.cgi?id=1263 > > Bug #: 1263 > Summary: Need event to fire when a relation is added/removed > Product: Accessibility > Version: rc > Platform: All > OS/Version: All > Status: NEW > Severity: normal > Priority: P2 > Component: IAccessible2 > AssignedTo: [email protected] > ReportedBy: [email protected] > Classification: Unclassified > > > I work on Google Chrome's accessibility support. There doesn't seem to be a > good event to fire on Windows when an IAccessible2 object's relations change, > i.e. when IAccessible2::relations() would return a different answer than > before > - assuming that no other property of the object happens to change. > > There might be a tiny handful of other object properties that could change > that > don't have a specific associated event, it might be worth auditing the API to > see. > > The remaining cases are somewhat obscure, so I wonder if instead or in > addition > it might make sense to have an event meaning that *any* property of an object > changed without specifying which one. As another use for this, if lots of > properties of an object change at once (name, description, role, etc.) a > server > could fire just one event instead of multiple. > > > > -- > *Pete Brunet* > > a11ysoft - Accessibility Architecture and Development > (512) 467-4706 (work), (512) 689-4155 (cell) > Skype: pete.brunet > IM: ptbrunet (AOL, Google), [email protected] (MSN) > http://www.a11ysoft.com/about/ > Ionosphere: WS4G > > _______________________________________________ > Accessibility-ia2 mailing list > [email protected] > https://lists.linuxfoundation.org/mailman/listinfo/accessibility-ia2 > >
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