Nobody wants to set this parameter. It is necessary because the old
API allowed `awful.rules` to be used with random for random matching.
This stopped "really" working between the 3.4 and 3.5 release because
the code started to accumulate "corner case" fixes aligned with the
client properties. v4.0 added more ordering and v4.3 added external
sources. After this, it is unusable with external objects, but
`gears.matcher` handle this use case very well.
In a perfect world we would have pure expression matching, but
that's problematic with all the "metaness" of the code. For now,
this adds an imperfect way to match the minimum and maximum of
number properties.
It will be used by the screen rules for the DPI and size properties.
This is hardcoded in `awful.rules`, but cannot be shared due to the
priority corner cases. Given in the long run any "standard" priority
should use the topological sort API, better not try to share *that*
code.
It is now possible to add and remove rules. This is superior to how
`awful.rules` originally handled rules because modules can now
assume adding and removing rules works.
The reason for the methods rather than `table.insert` is partially
because future commits will add signals. In turn, this will allow
`gears.matcher` to be extended by module using it using the extra
"introspection" made possible by the signals.
A call to cairo_close_path() adds a straight line to the beginning of
the current sub-path. This is used in some of the shapes to, well, close
the shapes.
Sub-paths can be created explicitly via cairo_new_sub_path(), but also
implicitly via cairo_move_to(). When a new sub-path is started, there is
no current point on the path. This means that e.g. cairo_line_to() is in
this start equivalent to cairo_move_to() (= no line is created) and that
cairo_curve_to() first does a cairo_move_to() to the beginning of the
curve. Similarly, cairo_arc() and cairo_arc_negative() first do a
line_to() to the beginning of the arc, and this line_to() can be
implicitly turned into a curve_to().
The problem with the code in gears.shape is that parts of the code
(implicitly) assume that there is not yet any path when the shape
function is called. If this assumption is broken, the call to
close_path() could go to the wrong point, because the path did not start
at the expected position.
Most of the functions in gears.shape already implicitly start a new
sub-path via a call to cairo_move_to(). Those that do not (necessarily)
begin with a call to cairo_move_to() are handled in this commit: They
get an explicit call to cairo_new_sub_path().
This change fixes the issue reported at
https://github.com/awesomeWM/awesome/pull/2804, because the shapes will
no longer be influenced by the pre-existing path. The move_to() that was
left around and caused that issue turns into a degenerate part (it only
has a move_to(), so nothing can be drawn) and is then discarded by
cairo.
Signed-off-by: Uli Schlachter <psychon@znc.in>
This way their name doesn't get mangle by the broken magic. It will also
eventually allow to `error()` in the template when the implicit
`@function` is used.
This commit also fixes a large number of issues found while
proof-reading everything.
ldoc has a magical `@classmod` module type which tries to detect
what is a method and what is a static function. It fails about as
often as it works. This commit makes everything explicit to remove
such issues.
Fixes#2640
Ref #1373
GLib has an internal pseudo-RNG that it initialises from /dev/urandom.
This commit adds code that uses this RNG to initialise various random
number generators that can be used by Lua.
This also removes some Lua code that initialises the random number
generator badly.
Signed-off-by: Uli Schlachter <psychon@znc.in>
In Lua 5.1, xpcall() has exactly two arguments: The function to call and
the error handler. Everywhere else, xpcall() passes extra arguments on
to the function to call. This includes LuaJIT, however since LuaJIT sets
_VERSION to "Lua 5.1", so far gears.protected_call used the workaround
for Lua 5.1 here.
This commit switches gears.protected_call to actually test for this
feature instead of just guessing based on _VERSION. Thus, this now also
uses the better code with LuaJIT.
Signed-off-by: Uli Schlachter <psychon@znc.in>
When calling join with e.g. arguments (nil, {"a"}), then everything past
the nil was ignored, because the code internally used ipairs() to
iterate over the arguments and this stops at the first nil it
encounters.
Fix this by using select() to iterate over the arguments.
This also adds a unit test for this problem.
Signed-off-by: Uli Schlachter <psychon@znc.in>
`pairs` order isn't defined and `{...}` will always be ordered.
There is no reason to have random behavior where it can be
predicted at no additional cost.
Emmanuel Lepage Vallée
Uli Schlachter
mergify[bot]
Uli Schlachter
Sorky
Daniel Hahler
Anatolii Aniskovych