[squeak-dev] Please try it out | Fixing the input mapping for keystroke events
Marcel Taeumel
marcel.taeumel at hpi.de
Mon Apr 26 06:40:39 UTC 2021
Hi Christoph.
> When pressing something like Ctrl + ArrowLeft, the keystroke event no longer answers true for #commandKeyPressed but for #optionKeyPressed instead.
Could you be more specific? With the current default settings on Linux and Windows (see EventSensor class >> #startUp), you should get both #controlKeyPressed and #commandKeyPressed for [CTRL]+[ArrowLeft]. When you press [ALT]+[ArrowLeft], wenn you get true for #commandKeyPressed and #optionKeyPressed.
Could you understand my explanations in KeyboardEvent >> #checkCommandKey regarding cross-platform compatibility? If not, what is missing?
Best,
Marcel
Am 25.04.2021 19:59:00 schrieb Thiede, Christoph <christoph.thiede at student.hpi.uni-potsdam.de>:
Hi Marcel,
great idea, thanks for your work. It works fine on Windows as well as WSL/Ubuntu/VvXsrv for all my usual workflows. :-)
I noted some "breaking change", but actually it is a fix: When pressing something like Ctrl + ArrowLeft, the keystroke event no longer answers true for #commandKeyPressed but for #optionKeyPressed instead. This makes a workaround in WindowAcrobatics [1] superfluous.
The KeyboardExerciser is also a great tool. It gives a good overview of what is still left to do for the input mapping - that is (on Windows):
* Ctrl + (Insert | Home | End | PageUp | PageDown) is mapped incorrectly to Ctrl + (A | D | L | ...)
* Ctrl + Alt + <letter> is not recorded
* Ctrl + Shift + Space is not recorded
* In my image, Shift + Alt + U does not work - is this a strange bug or do I have an unknown global keyboard filter?
[http://www.hpi.de/]
And here is some - though minor - notes about the exerciser tool:
* The "Move your mouse cursor" instruction message does not fit into the morph in my image and is not word-wrapped but misses a draw invalidation instead. Also, it is not multilanguage-safe, but since it is in the "Demo" system category, I guess this is okay. :D
Best,
Christoph
[1] https://github.com/hpi-swa-teaching/WindowAcrobatics/blob/3398eb951d674360a37fe422710340e53a69bd84/packages/WindowAcrobatics-Core.package/WAHandler.class/instance/handle..st#L5 [https://github.com/hpi-swa-teaching/WindowAcrobatics/blob/3398eb951d674360a37fe422710340e53a69bd84/packages/WindowAcrobatics-Core.package/WAHandler.class/instance/handle..st#L5]
Von: Squeak-dev <squeak-dev-bounces at lists.squeakfoundation.org> im Auftrag von Nicolas Cellier <nicolas.cellier.aka.nice at gmail.com>
Gesendet: Samstag, 24. April 2021 20:58 Uhr
An: The general-purpose Squeak developers list
Betreff: Re: [squeak-dev] Please try it out | Fixing the input mapping for keystroke events
Hi Marcel,
I tried it on macos and windows, no problem so far.
I had some fun with the exercizer, some combinations are surprising indeed...
Le ven. 23 avr. 2021 à 18:23, Marcel Taeumel <marcel.taeumel at hpi.de [mailto:marcel.taeumel at hpi.de]> a écrit :
Hi all!
Please find attached an updated changeset with a "KeyboardExerciser" to help you test and inspect the incoming keyboard events. You can find it also in the parts bin nearby the "ClickExerciser".
The visuals are supposed to look platform-specific. However, the event data contains information to make your application work across platforms. See KeyboardEvent >> #checkCommandKey for more explanations.
Try [CTRL]+[C] for keyStroke, keyDown, and keyUp.
Note that the visuals might not look right for keyUp and keyDown events due to missing lookup tables for the raw, platform-specific key codes. On my machine, for example, [,] and [.] and [-] look odd:
Nothing to worry about because all keyboard shortcuts in Squeak use keyStroke events at the moment.
Best,
Marcel
Am 22.04.2021 10:41:15 schrieb Marcel Taeumel <marcel.taeumel at hpi.de [mailto:marcel.taeumel at hpi.de]>:
Hi all!
Please find attached a changeset that improves the cross-platform base for keystroke events. Please try it out and take a look at it. Report issues ASAP so that I can merge it into Trunk soon.
Thanks to Tom (tobe), the new promising idea is to replace the existing attempt:
Duplicate all control and alt keys
Duplicate control and alt keys
Swap control and alt keys
With the following preferences:
[X] Map ASCII control characters to printable characters
- Default is TRUE
- Only affects events that have the CONTROL modifier set (e.g. CTRL+J)
- Rather application-specific than platform-specific
[X] Map CONTROL keys to COMMAND keys
- Checked at image start-up
- TRUE on Windows/Linux
- FALSE on macOS
[X] Map ALT keys to OPTION keys
- Checked at image start-up
- TRUE on Windows/Linux
- FALSE on macOS (bc. ALT==CMD on recent Linux/Windows VMs)
Please take a look at KeyboardEvent >> #checkCommandKey to learn about the fundamental trade-off we have solved.
Please try out your preferred applications. Feel free to add logging to HandMorph >> #logEvent: for more convenient testing:
(anEvent isKeyboard and: [anEvent isKeystroke])
ifTrue: [Transcript showln: anEvent].
Thanks!
Best,
Marcel (and Tom)
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