Hi All,
This is accessibility API question. Swing applications like IntelliJ
IDEA appear in the utilities jaccesswalker, jaccessinspector (JDK/bin)
and access-bridge-explorer (.NET app at
https://github.com/google/access-bridge-explorer.git). However, no scene
graph or accessibility messages in these utilities appear for any
OpenJFX application I have written. A screen reader needs both to know
the scene graph and be able to send and receive accessibility messages
to perform automation and read control descriptions.
I have put these values in the "accessibility.properties" file in the
JDK lib folder:
assistive_technologies=com.sun.java.accessibility.AccessBridge
screen_magnifier_present=true
screen_reader_present=true
In different test OpenJFX applications running on Windows machines, with
the screen reader JAWS running, the
Platform.accessibilityActiveProperty() is "true." When JAWS is not
running, the value is "false." However, the screen reader cannot
communicate with the OpenJFX applications.
Why are the OpenJFX applications not communicating across the
communication channel facilitated by the WindowsAccessBridge-64.dll and
JavaAccessBridge.dll? Incidentally, the Java Access Bridge is enabled
with jabswitch.exe. There is some type of Windows IPC used by the bridge
(COM?) once it is enabled. This bridge facilitates communication between
the screen reader and a Java application running inside of a JVM.
I've also tried explicitly setting roles etc. even though OpenJFX
graphical object already have default values. For example in the
"bouncing ball" sample program I set,
setAccessibleRole(AccessibleRole.BUTTON);
setAccessibleRoleDescription("Bouncing Ball");
setAccessibleText("I'm a bouncing ball");
setAccessibleHelp("This is bouncing ball, use the primary
action to start animation");
Does anyone have an OpenJFX sample program the shows up in the
jaccesswalker and jaccessinspector utilities and works with a screen
reader like JAWS or NVDA? This YouTube presentation implies
accessibility is already built into OpenJFX, but I can't get it to work,
see https://youtu.be/iUPPEkD9H1I "The New JavaFX Accessibility API." My
applications must comply with Section 508 of the Rehabilitation Act of
1973 but cannot so far because of this OpenJFX accessibility problem.
Thanks,
Don
