Using alt-key clicks on linux
ambassador at fourthworld.com
Mon May 29 11:30:13 EDT 2017
>> Richard Gaskin wrote (in thread 'nice Sierra feature'):
>>> Mark Wieder wrote:
>>> On linux you can alt-click to grab and move a window.
>> ... which is both great and horrible.
>> It's handy, of course, but it also means not being able to rely on
>> Alt-click in our UIs.
>> In many cases I've migrated some Alt-click functionality to Shift-
>> click, but it's nice to have both mod keys available, and some things
>> make more semantic sense with Alt rather than Shift.
> Because this is so important for a lot of Mac/Win/linux stacks,
> especially linux-RaspberryPi, I use it there often (and let user's
> know in the help):
> *** alt-mouseDown does NOT come through to LC.
> *** alt-mouseUp works:
> *** You have to FIRST click the object, THEN -- while the mouse is
> down --
> *** hold the altKey down.
> (Usually nearly everybody uses the reverse order: first the key then
> the click).
> *** So one could say, "alt-click" on linux should be done as
> "click-alt" ***
Or more specifically, clickdown-hold-alt-clickrelease, which is so
unusual that I wouldn't expect to be able to explain it to end-users.
This behavior can be turned off with Compiz Config, dconf Editor, and
other such tools, but in a world where ~80 of users never alter
preference settings I wouldn't rely on it.
Personally, it seems a bit heavy-handed of the Gnome team to block a
modifier key so sweepingly. I may see about submitting an enhancement
request to them to change that from Alt-click to Alt-rightclick, which
seems far better given how broadly the Alt key us used on other
platforms and how relatively seldom it's used for moving windows in
Gnome-base desktop environments.
But in the meantime, supporting Linux GUIs means dealing with Gnome
decisions, so the Alt-click is not easily available for most apps.
Fourth World Systems
Software Design and Development for the Desktop, Mobile, and the Web
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