"Event handling, and the philosopher's keyboard"

I've downloaded Stef and Igor's EventModel to play with their new event model :).� I've created KeydownEvent and KeyupEvent in contrast to the generic KeyboardEvent with all the information.� It's very simple code, but, that is the api I'm talking about.

Gofer it
������ squeaksource: 'GuilleUtils';
������ package: 'EventModel';
������ load

| ann evt |
ann := SystemInputEventAnnouncer new.
ann subscribe: SystemInputEvent send: #dispatchEvent: to: World activeHand.

10 timesRepeat: [
� � � �500 milliSeconds asDelay wait.
� � � �evt := Sensor nextEvent.
� � � �evt ifNotNil: [
� � � � � � � �ann handleEvent: evt
� � � �].
].


I don't know what other people happen to think about it :/, but a simple path to include this stuff in the image without breaking everything should be:

1) since keyup and keydown events are not used in any morph in the core, adding the new keydown and keyup should not break anything.
2) fetch a #keyStroke: implementor
3) if it's handling shortcuts instead of only chars (like cmd+smthg, ctrl+smthng), create an issue "put my shortcut handling in #keyDown: please"
4) solve the issue
5) if (#keyStrokes: toRefactor) > 0 : goto 2

After all that, the keyStroke users should only be using keyCharacter, and the refactor to use a simplified KeystrokeEvent is pretty straight forward :).

On Thu, Jan 26, 2012 at 3:07 PM, Guillermo Polito <guillermopolito@gmail.com> wrote:
�
2) Some key representation varies from platform to platform. �i.e.: A Shift-only press generates today a keydown event with:
� - a 254 keyCode value in unix
� - a �16 keyCode value in windows
��
So I think a "table" has to be built and documented for mappings for each key in a keyboard. �Examples of this can be found in enums/defs from other platforms:

X11 (current used window system in unix vm): http://cgit.freedesktop.org/xorg/proto/x11proto/plain/keysymdef.h

Andreas Raab suggested here to follow the X11 table, since it seems to be the more complete one :):

http://forum.world.st/Windows-cog-vm-Keyboard-events-related-about-keycode-mapping-td4330359.html
�
Guille