if a module fails to load, explicitly log errors for core and contrib in
the error log, but be a bit less verbose (and less confusing) in the
module error message itself.
fixes#747
c77f3aa accidentially broke "sparse" updates (i.e. updates that do not
trigger during each update interval).
Introduce a new update parameter, "force", to model the use case "update
everything on SIGUSR1".
fixes#692
make sure that for a given event (widget/object/module, whatever), only
a *single* input event per button can be registered at one time.
the problem otherwise is with modules that re-register their widgets
with the same IDs (cmus, spotify, etc.): Each time the widget is
re-created (each intervall, typically), it re-registers an input event,
creating an always longer list of callbacks being executed when the
button is clicked (not speaking of the memory leak this introduces).
fixes#668
Make sure that iconsets used as part of a theme do *not* override
anything already existing inside the theme.
Only iconsets that are manually specified can override settings in the
theme now (because those, you typically specify on the CLI).
TODO: Write unit test for this
fixes#666
make it possible to toggle the display state of a widget between
"displayed" and "minimized" also for modules that re-create their
widgets during each iteration.
see #661
by default, allow toggling the minimized state of a widget via the
middle mouse and draw a single unicode char instead of the actual
widget, maintaining all states.
fixes#661
* First, make iconsets override anything already present in the "base"
configuration
* Second, make sure that CLI provided iconsets have higher priority than
"built-in" ones
see #648
Previous code accepted the "first" hit in a theme - particularly, if a
module is called "A" and a *different* module "B" uses "A" as state, a
widget of module B with state A would be themed as *module* A, wrongly.
Essentially, made sure that the last (most specific) themeing "wins".
fixes#647
a module can now set `self.background = True` in its `__init__()` method
to make sure its update method is invoked in a separate thread.
also, do a PoC implementation of this for the github module.
TODO: add this to dev doc
see #640
the "merge" algorithm only fills in missing elements - i.e. the most
important pieces of a data structure must be filled in first. since the
iconset specified on the CLI takes precedence over anything present in
the config, load the CLI-provided iconset *first*.
hopefully fixes#634
when scrolling text that is subject to *slight* changes (e.g. a song
that contains the current position within the song), allow for slight
variations in the displayed text.
fixes#629
