Any awful.titlebar.widget.button widget (e.g. floatingbutton or closebutton)
decides on the currently visible symbol based on several factors. One of them is
"is the client currently focused?" and thus the button has to be updated when
the client is focused/unfocused.
The way the code did this was to use client.connect_signal("focus", f) and
client.connect_signal("unfocus", f). However, these signals are never
disconnected and kept alive forever. The callback function had a strong
reference to the client (as an upvalue) and thus this also prevented the client
from being garbage collected.
Fix this by using c:connect_signal("focus/unfocis", f) instead. These kind of
signals are only kept alive by the client object and don't prevent it from being
garbage collected.
This fixes the new test that the previous commit added.
Signed-off-by: Uli Schlachter <psychon@znc.in>
Go around a limitation of the lua language spec. The return value
of this method guaranteed `ipairs()` correctness.
Please note that both the official Lua and Luajit implementation
provide a sparse table compatible `ipairs()` and __len implementation
by default.
It is necessary to have it beforehand when creating layout objects
for unselected layouts.
In the current layout system, there is no layout object, but to allow
tabs and dynamic tagging features like ion3, layouts cannot be stateless.
Before, it was the caller job to make sure the client wasn't floating.
This limitation is unecessary. awful.client.idx now return nil instead
of an error. awful.rules setting the master width factor are now
foolproof.
This allow the most basic kind of stateful layouts to be created.
It is now possible to have layout instances instead of global
stateless layout arrange functions.
This allow layout "arrange" to be called less often and react on
the cause of the change itself rather than it's consequences
(usually, the "focus" signal).
Previously, the layout were re-arranged everytime the focus changed.
Now, with "raised" and "lowered", it require less "arrange".
"swapped" allow smarted layouts. Currently, swapped cause a full
re-arrange. It re-read the "index" list from scratch and create
a "new" layout. With "swapped", incremental layout changes are
possible.
Fixes https://github.com/awesomeWM/awesome/issues/616
A nil-value is no longer simply passed through, so this has to do some "special
things" to work properly.
Signed-off-by: Uli Schlachter <psychon@znc.in>
*WARNING* This introduce a minor API break as awful.tag.setscreen
arguments are now swapped for consistency
This allow to introduce logic for each properties and improve
awful.tag.add and execute logic when setting properties.
Uli Schlachter
Daniel Hahler
actionless
Emmanuel Lepage Vallée
Daniel Hahler
Dario Gjorgjevski