[Vm-dev] OSX VM doesn't generate events for modifier keypresses
(shift, ctrl, etc)
Ben Coman
btc at openInWorld.com
Fri Nov 28 17:09:39 UTC 2014
I celebrate my first VM contribution :) :) :) with integration of [1]
into pharo-vm on github. Now how do I submit this for consideration for
the SVN tree, to help keep things in syncd.
cheers -ben
Ben Coman wrote:
>
> AliakseiSyrel reported that the OSX VM doesn't generate events on
> shift/ctrl/command/options/capslock keypress, but Win32 and Linux do.
> (https://pharo.fogbugz.com/default.asp?14521)
>
> I've submitted a fix to pharo-vm, but thought it might also be useful to
> others, and was hoping for some review and discussion here...
> A diff can be seen here...
> [1] https://github.com/pharo-project/pharo-vm/pull/67/files
>
> I discovered "recordCharEvent:fromView:" and "keyDown:" do not receive
> modifier keypresses, however "flagsChanged:" does - as described by the
> AppKit Reference "flagsChanged: informs the receiver that the user has
> pressed or released a modifier key (Shift, Control, and so on)."
>
> Just above "flagsChanged:" I noticed...
> -(void)keyUp:(NSEvent*)theEvent {
> [(sqSqueakOSXApplication *) gDelegateApp.squeakApplication
> recordKeyUpEvent: theEvent fromView: self];
> }
>
> So I duplicated recordKeyUpEvent:fromView:
> as recordKeyDownEvent:fromView:
> changing only...
> evt.pressCode = EventKeyUp;
> to...
> evt.pressCode = EventKeyDown;
>
> and called it from the bottom of flagsChanged:
>
> ============
> Now in a test image, adding a debug Transcript after primGetNextEvent:
> InputEventFetcher>>eventLoop
> ...
> [true] whileTrue: [
> self waitForInput.
> [self primGetNextEvent: eventBuffer.
> Transcript crShow: Time now ; tab ; show: eventBuffer.
>
> shows...
>
> 11:41:18.9594 pm #(2 182714 56 1 1 0 0 1) Shift down
> 11:41:18.959581 pm #(0 0 0 0 0 0 0 0)
> 11:41:19.19321 pm #(2 182948 56 1 0 0 0 1) Shift up
> 11:41:19.193543 pm #(0 0 0 0 0 0 0 0)
> 11:41:21.04326 pm #(2 184798 59 1 2 0 0 1) Control down
> 11:41:21.043494 pm #(0 0 0 0 0 0 0 0)
> 11:41:21.346713 pm #(2 185102 59 1 0 0 0 1) Control up
> 11:41:21.346934 pm #(0 0 0 0 0 0 0 0)
> 11:41:21.814845 pm #(2 185569 58 1 4 0 0 1) Option down
> 11:41:21.815136 pm #(0 0 0 0 0 0 0 0)
> 11:41:22.137117 pm #(2 185892 58 1 0 0 0 1) Option up
> 11:41:22.137374 pm #(0 0 0 0 0 0 0 0)
> 11:43:28.593666 pm #(2 312348 55 1 8 0 0 1) Cmd down
> 11:43:28.593854 pm #(0 0 0 0 0 0 0 0)
> 11:43:29.014829 pm #(2 312770 55 1 0 0 0 1) Cmd up
> 11:43:29.015011 pm #(0 0 0 0 0 0 0 0)
> 11:41:43.762799 pm #(2 207517 57 1 0 0 0 1) CapsLock down
>
> CapsLock does not get a up-event per...
> https://bugzilla.mozilla.org/show_bug.cgi?id=259059
>
> It perhaps can be simulated like...
> https://developer.apple.com/library/mac/qa/qa1519/_index.html
>
> Thoughts?
>
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