* Updated CONTRIBUTING.md and MAINTAINERS.md
* Fixed broken GitHub links
* Added instructions on how to run tests
* Linked XMonad.Doc.Developing
* updated hackage link
This turns off the warnings about unused imports _unless_ one is using
the oldest supported version of GHC (right now that's 8.4.4 or older);
then it turns them into errors! This prevents xmonad from emitting
warnings about imports that have to be there due to backwards
compatibility, but are obsolete in newer versions (think MFP), while at
the same time preventing bitrot.
Starting with 28e75da77f we only support
GHC versions 8.4.3 and up (more precisely, the GHC version associated
with stackage lts-12.0 and up). The imports in question are now in
Prelude and need not be imported explicitly.
This makes it possible to query the current layout state, which might be
useful to e.g. show the current X.L.WorkspaceDir in xmobar.
Example of use (assuming myLayout is the layout that is assigned to
layoutHook):
asMyLayout (Layout l) = (`asTypeOf` myLayout) <$> cast l
…
layout <- asMyLayout . W.layout . W.workspace . W.current <$> gets windowset
case layout of
Just (WorkspaceDir d) -> …
Unfortunately this requires adding the Typeable constraint to a bunch of
classes in xmonad-contrib, so we need to merge those changes there first
(fortunately it doesn't need to go in lockstep, adding a Typeable
constraint to those classes in xmonad-contrib is harmless).
This fixes a bug when using multiple screens with different dimensions,
causing some floating windows to be smaller/larger than the size they
requested.
Some applications (e.g. pinentry) always map their window at (0, 0) so
floatLocation would compute the window size relative to the screen
containing (0, 0) and if the current workspace is on another screen with
a different size, this relative size results in a different absolute
size, which is undesirable for fixed size floats.
Other applications like ssh-agent place their window at the center of
the framebuffer (ignoring xinerama layout). Same problem.
Then there are apps that remember their position/size when minimizing to
tray and then attempt to restore it when reopened. Again, if they
restore it on another screen, we miscalculate the size.
The fix is to use the current screen for calculating dimensions of new
(not yet mapped) floating windows.
Co-Authored-By: Vincent Vinel <narthorn@gmail.com>
* Add `windowBracket`: provide a means of handling windowset changes
made during the course of arbitrary `X` actions. Buys composability.
* Add `windowBracket_` variant.
* Add `modifyWindowSet` utility for use with the above.
* Re-implement `sendMessage` using `windowBracket_` so that its refresh
handles changes made to the windowset by the message handler.
