static void_f_do_barnacle_install_properties(GObjectClass
*gobject_class){
GParamSpec *pspec;
/* Party code attribute */ pspec = g_param_spec_uint64
(F_DO_BARNACLE_CODE, "Barnacle code.", "Barnacle code",
0, G_MAXUINT64,
G_MAXUINT64 /* default value */,
G_PARAM_READABLE | G_PARAM_WRITABLE |
G_PARAM_PRIVATE);
g_object_class_install_property (gobject_class,
F_DO_BARNACLE_PROP_CODE,
Alejandro Piñeiro [email protected]
Making the GNOME 3.0 Accessible: Building Accessibility into Gnome-Shell and its UI Libraries
Introduction: GNOME
GNOME
● Desktop environment
● Composed of free and open source software
● Heavily emphasis on make environment as user-friendly as possible
● As in any other desktop you can browse files, play music and videos, read the email, etc
GNOME is ...
● Extended: most of Linux distributions include it
● Free Software: part of the GNU project
● Usable: defines a global Human Interface Guidelines
● Accessible: accessibility has been a central consideration from the very early days
Define accessibility
● Means helping people with disabilities to participate in substantial life activities.
● Work
● Use of services and products
● Access to information
Going technical
● Key aspects of accessibility:● Provide programmatic access to the features
and capabilities of application objects● Keyboard navigation● Theming
● GNOME includes libraries and support framework that allow all people to utilize all the functionality of GNOME user environment.
General GNOME 2.0 arquitecture
GNOME releases
Normal releases
● GNOME policy is a release each 6 months
● Free Software!
● User can obtain a stable updated environment each 6 months● And each day if they are cutting-edge users
● Incremental updates
Major releases
● Done to introduce major changes.
● Can be a breakage of previous state
● History:● 1997: GNOME project started● 1999: GNOME 1.0 release● 2002: GNOME 2.0 release
GNOME 3.0 is coming!
● Planned to March/April 2011● More than 9 years since the last major release
● Several packages and libraries will be dropped
● Several common programs on GNOME 2.0 will not be available● A lot of work was done in order to provide proper
equivalent programs
Desktop interface
Gnome panel
● GNOME 2.0 uses the usual desktop metaphor
● Monitor as the user desktop● Objects like documents and folders can be places
● Document can be opened into a window● Represents a paper copy of the document placed
on the desktop
Nothing really new
gnome-shell
● Defining technology of GNOME 3.0 desktop
● Provides a new and innovative way to interact with the desktop
● Take advantage of modern graphics hardware
Shiny future
Problems
Gnome-shell is so new...
● … that uses new and fancy technologies
● Not initially supported on the GNOME 2.0 accessibility stack
● Gnome shell developers are focusing on gnome-shell itself● But they have included accessibility in his roadmap
Solutions
● A11y community started to work in provide gnome shell a11y support
● Cally could be used to access UI elements● Required to screen readers
● A magnifier feature was introduced
… but
● I would be really likely that accessibility support will not be ready for GNOME 3.0
● Anyway, work will continue
● GNOME will maintain his 6 month policy, in 6 months GNOME 3.2 will be there
DEMO
References
● http://live.gnome.org/Accessibility/
● http://live.gnome.org/Accessibility/GNOME3
● http://projects.gnome.org/accessibility/
● http://live.gnome.org/GnomeShell/
QUESTIONS?
