Twice now we had problems with the garbage collector which caused signals
established via weak_connect_signal() not to be disconnected when we wanted them
to be disconnected. The effect was that we tried to redraw a drawable after it
was garbage collected which caused errors.
Instead of playing whack-a-mole with all the various ways that might make us
redraw a drawable after GC, let's just fix all of these issues by explicitly
checking for this case and turning it into a no-op.
Signed-off-by: Uli Schlachter <psychon@znc.in>
The previous commit made wibox.drawable turn a "normal redraw" into a complete
repaint when it was moved to another screen. However, nothing happened until
that normal redraw.
This commit triggers a normal redraw when we are (possibly) moved to another
screen. More precise, this means that whenever a screen appears, disappears or
changes its geometry and when the drawable is moved, we trigger a normal redraw.
This redraw will likely do nothing, because no relayout is pending and no part
of the surface needs a redraw, so it is cheap.
However, if the drawable really ends up on another screen, then the code from
the previous commits makes us do a full relayout and redraw.
This commit likely fixes the current instability of test-screen-changes.lua. See
https://github.com/awesomeWM/awesome/issues/982#issuecomment-231712056.
As explained there, the test fails because the fake screen that it created is
still referenced, so cannot be garbage collected, but the test doesn't succeed
unless the screen is garbage collected. So something is still referencing the
screen that was removed. This something can be a client's titlebar, because the
underlying drawable still has a context member referring to the old screen.
This commit should fix that problem, because we now trigger a redraw which will
compute a new context and thus the reference to the old screen is released.
Signed-off-by: Uli Schlachter <psychon@znc.in>
The previous commit made the hierarchy do a re-layout when the context changes.
However, widgets could change their appearance depending on the context without
changing their layout. Thus, the previous commit is not enough.
This commit also makes the drawable redraw everything when the context changes.
Signed-off-by: Uli Schlachter <psychon@znc.in>
When the context for widget changes (e.g. we are on a new different screen or
have a different DPI value), widgets might change their appearance even though
they didn't emit widget::layout_changed. Thus, update the hierarchy in these
cases.
Signed-off-by: Uli Schlachter <psychon@znc.in>
widget_at() no longer exists since 0aa4304bda (and the surrounding commits
stopped us using this function).
Signed-off-by: Uli Schlachter <psychon@znc.in>
The actual bg is drawn either with fake transparency over the wallpaper (this
uses operator OVER) or for true transparency with operator SOURCE. The bgimage
should be drawn ontop of this without erasing the background and thus needs
operator OVER.
However, before this commit the bgimage was drawn in the same way as the bg and
thus inherited its SOURCE operator if a compositor is running. Fix this by
restoring the default operator (OVER) and also e.g. the default source before
drawing the bgimage.
Fixes: https://github.com/awesomeWM/awesome/issues/954
Signed-off-by: Uli Schlachter <psychon@znc.in>
When called with the file name of an image, this function failed to turn that
file name into a cairo surface.
Fixes: https://github.com/awesomeWM/awesome/issues/954
Signed-off-by: Uli Schlachter <psychon@znc.in>
The requirement to call add_signal() was added to catch typos. However, this
requirement became increasingly annoying with property::<name> signals and e.g.
gears.object allowing arbitrary properties to be changed.
All of this ended up in a single commit because tests/examples fails if I first
let add_signal() emit a deprecation warning.
Signed-off-by: Uli Schlachter <psychon@znc.in>
It was set as `module` instead of `class` because ldoc was confused
set shown the methods as functions and functions as methods.
This commit set the explicit section so ldoc don't gress (wrongly)
local functions and metatable based constructors are not
documented unless an explicit @function is added.
Also add missing return values and fix formatting.
Before this commit, it was necessary to call 'rawset' to be
able to add new fields to the wibox. This is no longer required.
This solution was choosen because wibox is itself a base class of
menus and wibars. Those classes can now add new properties without
hacks.
As wibox contain a drawin, but isn't one, it is necessary to map
drawin to wibox.
This could eventually be fixed by turning wibox into drawin just
like the client, tag and screen do.
When there are no screens, screen[1] causes an error. Thus, this isn't a safe
fallback for these functions. Instead, this commit makes the code prefer the
primary screen, if possible. If no screen exists, then screen.primary will be
nil, but at least it won't throw an error like screen[1] does.
(This also changes the outdated copy of getbycoord that exists in
wibox.drawable)
Signed-off-by: Uli Schlachter <psychon@znc.in>
This makes it possible to have the systray only visible on the primary screen,
which is the new default value. This also makes it possible to configure
directly on which screen the systray should be visible.
This breaks the API in the sense that people who use "the old method" to
configure the systray's screen possibly don't have a systray.
Fixes: https://github.com/awesomeWM/awesome/issues/724
Signed-off-by: Uli Schlachter <psychon@znc.in>
There's no point in having multiple instances of this, because there are no
per-instance settings and the systray can only be visible in a single place at a
time anyway.
Signed-off-by: Uli Schlachter <psychon@znc.in>
* Better widget names when using the declarative syntax
* Add ratio.get_ratio to avoid using the private API
* Also support `set_widget` when swapping widgets
Issues involve:
- :layout() had the wrong signature and expected a cr argument that was left
from when this was still the :draw() function.
- horizontal and vertical reflection were mixed up (I guess it has always been
this way?)
- The return value should be a table of widget placements. Instead it was just a
single widget placement.
This is broken since commit 85ab3f045b.
Fixes: https://github.com/awesomeWM/awesome/issues/718
Signed-off-by: Uli Schlachter <psychon@znc.in>
This commit makes these methods invoke the method on a widget in a protected
context. Thanks to this, e.g. the wibox and other widgets are protected from
errors in a child widget.
Additionally, fit_widget() now assumes 0 if a widget's :fit() method didn't
provide a number.
Signed-off-by: Uli Schlachter <psychon@znc.in>
I just spent too much time tracking down a bug that happened while drawing a
widget. This is the reason why we should apply sanity checks while widgets are
constructed, so that we get a useful backtrace.
Signed-off-by: Uli Schlachter <psychon@znc.in>
This makes the code use the existing functions for setting widgets. That way,
all the sanity checks that the existing functions have are applied for this code
as well.
I just spent half an hour tracking down a bug where a boolean ended up as a
"widget" in a fixed layout. The symptom was that while drawing the widget, an
error happened. Via this change, the error would instead be flagged while
constructing the widget.
Signed-off-by: Uli Schlachter <psychon@znc.in>
This commit documents that a textbox already accepts a screen object where a
screen index is expected. Also, this changes the widget API in that a widget's
context.screen is now a screen object instead of a screen index.
Signed-off-by: Uli Schlachter <psychon@znc.in>
This layout allow each widgets to take 'r' percent of the total
space, where 'r' is configurable.
It re-implement the 'wfact' system used by `awful.layout.suit.tile`
This layout display the widgets on top of each other. It can also optionally
display only the first one.
The most common use case is to create a composited widget. Other use case
include the creation of a "paged" stack to only display the most
relevant widget without adding extra complexity to the parent layout.
This new syntax is inspired by the Awesome widget 3.2-3.4 API. It
allow cleaner widgets declaration. The produced code is usually much
shorted and easier to read than wibox.widget imperative syntax.
There is already a hack into `awful.widget.common`. This system aim
to make the hack obselete while preserving the useful part.
I think this is also necessary to properly support SVG (with DPI
and resize).
Finally, Qt handle this using the QBrush concept, where you can have
programmatic patterns. Cairo doesn't have this concept, so there is no
"clean" way to have programmatic brushes.
It's unused since commit 0aa4304bda. Before this was a stable sorting
algorithm since table.sort is allowed to be unstable. Apparently we don't need a
stable sorting algorithm anymore.
Signed-off-by: Uli Schlachter <psychon@znc.in>
Until now, this layout was "append only". There was no official
APIs to remove, replace, insert and swap widgets. This is fine
for the usual wibox + sensors widget used by the majority of
users, but lack flexibility necessary to use the layout system
to place dynamic elements such as clients.
The methods introduced by this commit are also recursive. This
allow widgets to be decorated, wrapped and splitted without
having to add boilerplate code everywhere.
This remove duplicated code and will allow more "collection"
style layouts to be implemented without logic duplication.
This commit also do some small cleanup to remove duplicated
code now present in `awful.util`.
Fixes https://github.com/awesomeWM/awesome/issues/617
Emmanuel Lepage Vallee
Uli Schlachter
Salorium
Daniel Hahler
Daniel Hahler