updateHistory leaks unfiltered windows from previous states as it is never
forced. The consumer of such data structure is not visible to ghc, so the
demand analysis has to fallback on pure laziness.
We fix this inserting evaluation points on the `historyHook` function. We do
this for two reasons, this is the only function calling `updateHistory`.
Plus we cannot do it clearly at the `updateHistory` function as we operate
inside a continuation on withWindowSet. In respect to the `put`, everything
would be a big thunk.
This is a convenience module in order to have less import noise. It
re-exports the following:
a) Commonly used modules in full (Data.Foldable, Data.Applicative, and
so on); though only those that play nicely with each other, so that
XMonad.Prelude can be imported unqualified without any problems.
This prevents things like `Prelude.(.)` and `Control.Category.(.)`
fighting with each other.
b) Helper functions that don't necessarily fit in any other module;
e.g., the often used abbreviation `fi = fromIntegral`.
* true error: more modules export foldl/foldl'/foldr, so explicitly use the Data.Foldable one
* -Werror error: transition from Control.OldException to Control.Exception, assuming everything was IOException
When the focused window was closed without a new window receiving focus, the
closed window was not removed from the history database, making for example
"nextMatch History (return True)" misbehave. This patch fixes this.
This patch replaces the use of Seq.filter and Seq.breakl with two
functions flt and brkl that do the same. This is necessary to
keep compatibility with containers < 0.3.0.0 because Seq.filter and
Seq.breakl were introduced only in containers 0.3.0.0.
This module adds two related facilities. The first one allows cycling through
the windows in a window group. A group is defined as the set of windows for
which a given Boolean Query returns True. The second one keeps track of the
history of focused windows and allows returning to the most recently focused
window in a given window group before the currently focused window.
