I am all for cleaning this up, but I'm sorry that I cannot be very constructive on this. I'd just like to confirm that keyboard handling with regard to special keypresses does not behave correctly. Try this in a workspace or transcript: hit ctrl-1 This prints 1. Same for 2 till 8. Guess what ctrl-9 does. No, it does not print 9. Try it ...
In my opinion, ctrl-whatever should not put anything at all in the transcript window as it is not a normal keypress. Same holds for all ctrl, option, alt, command, et cetera modifier key presses, except for shift of course. But even so, the strange behavior of ctrl-9 does not really have a clear justification. On 24 Jan 2012, at 16:20, Guillermo Polito wrote: > Hi! > > While playing (again) to add Function keys support, reading documentation of > how keyboard handling works on our vm and other platforms: > > .Net: > http://msdn.microsoft.com/en-us/library/system.windows.forms.control.keydown.aspx > Javascript: http://www.quirksmode.org/js/keys.html > > And a quick explanation of Igor of how our vm works: > http://lists.squeakfoundation.org/pipermail/vm-dev/2011-November/009661.html > > > What puzzles me is some of the following: > > - Keypress event should only be raised to send keystrokes having a character > representation. > - but some keystrokes with no character representation are taken as > keypresses! (arrowup, arrowdown, esc...) (and so, used to handle events > instead of doing it on keydown) > - the strokes above should be only raised in keydowns IMHO. > - more on, we have in Character class representations for those non > characters :P which is funny because they are not characters. > > And everything works, and fits in a kind of strange way :). > > Now, rearranging this to follow those conventions means: > - reify Keys (vs Characters). So we can model modifier keys, function keys, > arrow keys, independent from Characters. > - Keys (non-characters) should only be raised as single events on keydown. > - and the worse part is to fix all the hardcoded shortcuts messed everywhere > in the image. > > Any thoughts on this? > > Thanks! > Guille ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry [email protected] - http://dcc.uchile.cl/~jfabry PLEIAD Lab - Computer Science Department (DCC) - University of Chile
