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OpenOffice.org and IAccessible2, CSUN 2008
 

OpenOffice.org and IAccessible2, CSUN 2008

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Status of OpenOffice.org accessibility and why IAccessible2 matters

Status of OpenOffice.org accessibility and why IAccessible2 matters

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    OpenOffice.org and IAccessible2, CSUN 2008 OpenOffice.org and IAccessible2, CSUN 2008 Presentation Transcript

    • CSUN 2008 2008-03-14, Los Angeles OpenOffice.org & IAccessible2 Malte Timmermann Technical Architect StarOffice/OpenOffice.org Sun Microsystems 1 OpenOffice.org and IAccessible2
    • About the Speaker • Technical Architect in StarOffice/OpenOffice.org Development • Working on StarOffice since 1991 > Accessibility > Security > Architecture and Performance > Sun ODF Plugin for MS Office > Past: EditEngine, VCL, Help System, BasicIDE, ... • Member of the OASIS OpenDocument Accessibility Subcommittee • http://blogs.sun.com/malte 2 OpenOffice.org and IAccessible2
    • Agenda • The role of Accessibility APIs for OOo • OpenOffice.org Accessibility API • AT Support for OpenOffice.org • Status IAccessible2 for OpenOffice.org 3 OpenOffice.org and IAccessible2
    • The role of Accessibility APIs for OOo • Accessibility API very important for OpenOffice.org (OOo) • OOo doesn't use the system's standard widgets, so a lot of the old tricks from (Windows) AT don't work • Some special API is needed for accessing the document anyway > For some “standard” applications, AT accesses the document information via the application specific API > This only works for the specific application, but doesn't help for OOo > AT vendors are not much interested in doing the same for OOo :( 4 OpenOffice.org and IAccessible2
    • The role of Accessibility APIs for OOo • With standard Accessibility APIs, AT doesn't have to “special case” for certain applications > When an AT supports one Office suite via that API, it automatically has support for other Office suites implementing that API > Customizations for certain applications are only needed for convenience features or for improving efficiency of certain work flows 5 OpenOffice.org and IAccessible2
    • The role of Accessibility APIs for OOo • For OOo Accessibility, we had to decide which Accessibility API to use • The only usable existing APIs in 2001 have been the Java and the GNOME Accessibility API > MSAA was not an option, because it was incomplete, and didn't help on other platforms > We specified our own Accessibility API, to be able to bridge it to different platform Accessibility APIs 6 OpenOffice.org and IAccessible2
    • OpenOffice.org Accessibility API • Derived from Java and GNOME Accessibility > To support multiple platforms • Used for UI and for document representation > Made enhancements for exposing the document content, which also led to improvements in Java and GNOME APIs • Bridged to Java Accessibility and GNOME ATK > AT doesn't have to know anything about OpenOffice.org or about that new Accessibility API > Currently working on support for the Mac OS X Accessibility Framework! 7 OpenOffice.org and IAccessible2
    • AT Support for OpenOffice.org • GNOME > Good support for OOo because of GNOME's well defined Accessibility framework • Windows > Most AT Vendors don't care much about support for OOo :( > Some AT vendors support Java > This way, they automatically support OOo via the Java Access Bridge for Windows, but this support is in most cases not sufficient for working with OOo > No AT vendor supports the OOo Accessibility API directly > Overall status on Windows: AT support for OOo is not sufficient 8 OpenOffice.org and IAccessible2
    • AT Support for OpenOffice.org • A new hope: “IAccessible2” > It is derived from OOo Accessibility API! > IAccessible2 fills the gaps from things not covered by MSAA > It's not a completely new API, where AT vendors would hesitate to support it > Only additional interfaces to MSAA, so AT vendors can make use of it where needed, without needing to change all old MSAA based implementations > IAccessible2 will help getting better AT support for OOo! > Since they not only implement it for OOo, but for many different applications 9 OpenOffice.org and IAccessible2
    • Status IAccessible2 for OpenOffice.org • IBM already has IAccessible2 implemented in Lotus Symphony, which is based on OOo 1.1 code > They plan to contribute this for OOo :) > OOo already received some of the contributions • Unfortunately the contributions are in a condition that we can't easily integrate them > Patches are based on a very old code base (OOo 1.1) > Our engineers are working with IBM's engineers on solving the issues and help to migrate that code to OOo 3.0 code base > IAccessible2 probably won't make it into OOo 3.0, but into 3.x 10 OpenOffice.org and IAccessible2
    • OpenOffice.org & IAccessible2 Malte Timmermann Malte.Timmermann@sun.com http://blogs.sun.com/malte 11 OpenOffice.org and IAccessible2