[g-a-devel] Trying to understand STATE_SENSITIVE

[Aaron Leventhal <aaron moonset net>]

STATE_SENSITIVE doesn't make sense to me. It think it should either be 
deprecated or the ATK/AT-SPI docs need to be clear. Is STATE_SENSITIVE 
doing something we can't do with other states such as ENABLED and 
INDETERMINATE? It seems like everything in Mozilla that's enabled should 
also be sensitive? Not filing a bug because I'm not sure what to 
recommend in the bug.

ATK:
ATK_STATE_SENSITIVE   Indicates this object is sensitive
-> Self-referential sentence
ATK_STATE_ENABLED   Indicates that this object is enabled. An 
inconsistent GtkToggleButton is an example of an object which is 
sensitive but not enabled.
-> What's an inconsistent button? Why isn't it ENABLED and INDETERMINATE?

AT-SPI:
STATE_SENSITIVE   Indicates this object is sensitive, e.g. to user 
interaction. STATE_SENSITIVE usually accompanies STATE_ENABLED for 
user-actionable controls, but may be found in the absence of 
STATE_ENABLED if the current visible state of the control is 
"disconnected" from the application state. In such cases, direct user 
interaction can often result in the object gaining STATE_SENSITIVE, for 
instance if a user makes an explicit selection using an object whose 
current state is ambiguous or undefined.
-> I don't understand this
STATE_ENABLED   Indicates that this object is enabled, i.e. that it 
currently reflects some application state. Objects that are "greyed out" 
may lack this state, and may lack the STATE_SENSITIVE if direct user 
interaction cannot cause them to acquire STATE_ENABLED.
-> I don't understand this

Also gok/gok-keyboard.c:
(gok_style_if_enabled): Check for SPI_STATE_SENSITIVE
instead of SPI_STATE_ENABLED; this is because SENSITIVE
has the semantics we really want, ENABLED can be false for
a few actionable elements such as radiobuttons which are in
the "indeterminate" state (i.e. no radiobutton in the group is
toggled yet). Fix for bug #136877.

-> I don't see why radio buttons aren't considered enabled in this state.
-> Is INDETERMINATE expected on radio groups with no no checked radio 
button?

- Aaron