Description Douglas Pollock 2003-08-21 16:14:46 EDT

This is specific to the GTK2.x implementation of SWT, but may occur elsewhere. 
After certain events (e.g., adding a key binding, removing a key binding, etc.)
on the KeyPreferencesDialog, focus is lost completely (i.e., tab does nothing).
 To restore focus, a mouse click must occur on some focusable widget to restore
the focus.  This is a problem for accessibility.

Not sure if it is a design flaw in the KeyPreferencesDialog, or in GTK-SWT. 
This problem does not occur on Windows XP.

As a side note, I've noticed that focus is erratic in GTK.  Sometimes focus
seems to disappear completely and can't be restored without re-opening the dialog.


STEPS TO REPRODUCE:
1.) Open KeyPreferencesDialog.  (Window>Prefereces, Workbench>Keys)
2.) Select any command/action from the tree on the left.  For example, Help>About.
3.) Press tab until you are focused on the Key Sequence combo box.
4.) Type in "Ctrl+I".
5.) Tab to the "Add" button.
6.) Press the space bar to activate the "Add" button.
7.) Press the Tab key repeatedly.

EXPECTED RESULTS:
Focus should appear somewhere on the dialog.

ACTUAL RESULTS:
Focus is lost.  Using ALT+TAB to remove and restore focus to the dialog does not
have an effect on the focus.  Mouse-clicking on the Key Sequence combo box (for
example) restores focus.

OTHER NOTES:
Some other traversal keys are effected (e.g., ESC), but not others (e.g.,
RETURN/ENTER).