Context:
Motif hints [1] allow applications to request specific window manager
frame decorations. Most applications like alacritty, chromium, and
godot, use the hints as a binary flag, setting or un-setting
`MWM_DECOR_ALL`.
Previously [2], we had disallowed applications to set the "normal"
border style through motif hints. This effectively meant that users that
had set `default_border pixel` would not see applications spawning with
normal decorations [3].
However, that meant that applications like godot [4] could not toggle
their border between none and normal so the behaviour changed with
v4.21 [5].
That change however also allowed applications to override the default
none/pixel border style the user set. For example, alacritty can be
configured to either have all or no decorations [6] and they always set
the motif hint on startup, completely overriding i3 user's preference:
1. If decorations are disabled with alacritty's config then they will
override `default_border normal` and no title will be used.
2. If decorations are enabled (also the default behavior) with
alacritty's config then they will override `default_border pixel` and
a title will be used.
This patch redefines how we interpret motif hints. When a client sets
`MWM_DECOR_ALL`, we interpret it as "the maximum decoration the user has
allowed for this window". I.e., if a client was all decorations and the
user expects the window to not have a title, we don't include the title
in "all" decorations.
The user's preference is determined by these:
1. For new tiling windows, as set by `default_border`
2. For new floating windows, as set by `default_floating_border`
3. For all windows that the user runs the `border` command, whatever is
the result of that command for that window.
Example:
- User opens new tiling window with `default_border pixel` => maximum
decoration = PIXEL
- Window requests all/title decorations => i3 enforces the user maximum
decoration, PIXEL (no change)
- Window requests no decorations => i3 accepts it and sets border to
NONE, maximum decoration remains PIXEL
- User toggles the border, next style is NORMAL => maximum decoration is
now NORMAL
- Window requests no decorations => i3 accepts it and sets border to
NONE
- Window requests all/title decorations => i3 accepts it and sets the
maximum border, NORMAL
- User toggles the border, next style is NONE => maximum decoration is
now NONE
- Window requests all/title decorations => i3 enforces the user maximum
decoration, NONE (no change)
With this, we will still allow behaviour where windows can toggle their
border style with motif hints [4][7].
Reference/footnotes:
[1]: https://linux.die.net/man/3/vendorshell
[2]: https://github.com/i3/i3/pull/2386
[3]: Notice how there is apparently a gap because `default border none`
settings would not be respected if an application wanted just "border"
decorations but this was never reported, probably because of the rare
conjunction of applications requesting that and users defaulting to none
borders.
[4]: https://github.com/godotengine/godot/issues/40037
[5]: https://github.com/i3/i3/pull/5135
[6]: Set by an underlying library here:
fafdedfb7d/src/platform_impl/linux/x11/util/hint.rs (L113-L142)
called by alactitty here:
4ddb608563/alacritty/src/display/window.rs (L341)
[7]: https://github.com/i3/i3/issues/3678Closes#3678Fixes#5149
The only place where this matters is with command `border toggle` which
cycles through them. Luckily, the behaviour does not change because the
order is the same with the new enum.
Originally I thought we should remove the build and test steps in favor of the
“meson dist” step. But, then we lose verbose build command lines and access
to the test logs, and having the failing test logs readily available is
critical.
So, instead, let’s make the “meson dist” step not repeat the work that was
already done in earlier steps. The Meson manual even documents the --no-tests
flag precisely for our use case:
> The meson dist command has a --no-tests option to skip build and tests steps
> of generated packages. It can be used to not waste time for example when done
> in CI that already does its own testing.
From https://mesonbuild.com/Creating-releases.html
fixes https://github.com/i3/i3/issues/5145
Before this commit, the test was flaky: it relied on the Perl test process
sending the kill() system call before i3 exited. This can easily be triggered
by adding a sleep(1) after the “cmd 'exit'” line.
This is because with i3_autostart => 1 (the default), i3test.pm kills i3
or bails out if it can’t.
So, we instead set i3_autostart => 0 and launch i3 ourselves.
This will unfortunately still make the code kill i3 and bail out,
because launch_with_config updates the $i3_pid variable that i3test.pm
uses for tracking whether it should clean up i3.
The solution is to exit i3 by calling exit_gracefully,
which will make the i3test.pm state correct.
related to https://github.com/i3/i3/issues/3009
Count extra_bytes correctly
If there is a variable with the same name as the rest of another
variable after removing $, then it will be counted twice. Therefore,
we need to completely replace it with spaces (variable names cannot
contain spaces) in order to correctly calculate the length of a new
string.
fixes https://github.com/i3/i3/pull/5002
Co-authored-by: Ivan Zharov <zhiv.email@gmail.com>
Co-authored-by: Michael Stapelberg <stapelberg@users.noreply.github.com>
The testsuite already contains quite a number of SIGCHLD handler
installation/un-installations. Here is my attempt at an inventary.
1. complete-run.pl installs a SIGCHLD handler in the `start_xserver()` function
call, which prints an error and exits when all x server processes have exited.
2. In the TestWorker child process, a SIGCHLD handler is installed to reap dead
test child processes.
3. The TestWorker child process forks another child process for running the test
file, where the previously installed SIGCHLD handler (point 2) is unset.
This is where this commit comes in: it installs a SIGCHLD handler in the test
file child process, which will trigger when the i3 subprocess dies.
4. (For completeness: i3test.pm defines an END block where it unsets the
previous SIGCHLD handler before it kills the subprocesses.)
With this commit, when i3 segfaults, the output will look like this:
Writing logfile to 'testsuite-2022-09-10-21-14-46-4.20-103-gb242bceb/complete-run.log'...
[:100] /home/michael/i3/testcases/t/167-workspace_layout.t: BAILOUT
completed 0 of 1 tests
test /home/michael/i3/testcases/t/167-workspace_layout.t bailed out:
could not kill i3: No such process
fixes https://github.com/i3/i3/issues/4437
When an error is encountered such as "The configured command for this shortcut
could not be run successfully", the "show errors" button on i3-nagbar doesn't
work if $PAGER is less, and $LESS contains either the -E or -F flag (the
window pops up, but immediately disappears).
Strip these flags from the LESS environment variable before invoking $pager.
Fixes#2643
Inner drop region behaves like move to mark.
The outer region is close to the edge (currently 30px from the edge).
This will place the container as a sibling in the given direction within
the parent container. If the move direction goes against the orientation
of the parent container, tree_move() is called.
Contributors:
Co-authored-by: Orestis Floros <orestisflo@gmail.com>
See #3085
- Inner drop region behaves like move to mark
- Handle workspaces
- Fix crash when target closes
- Initiate tiling drag from titlebar
- Hide indicator until container is dragged outside of original position
- Calculate outer_threshold using percentages instead of fixed pixel
values
- Emit 'move' event properly
- Don't focus previously unfocused containers
- Use tree_split() on different orientation
- Fix redundant split containers
- DT_PARENT
- Readability & optimizations
- Limit parent threshold by render_deco_height()
- Tests
- Fullscreen container handling
- Initiate drag from title bar
- Fix issue of EnterNotify events still triggering after drag_callback
is called
- Include decorations for drop target calculation
Co-authored-by: Michael Forster <email@michael-forster.de>
See #2178
- Original implementation of tiling drag + indicator window
> A container can be dragged by the title bar to one of the four sides
> of another container. That container will then be split either
> horizontally or vertically.
Co-authored-by: Tony Crisci <tony@dubstepdish.com>
See #2653
- Original implementation of outer/inner drop region indicator:
> There are two drop regions per direction.
>
> The inner region is closer to the center of the window. Dropping on
> this region will split the target container and put the container
> within the split at the given direction beside the target container.
>
> The outer region is close to the edge (currently 30px from the edge).
> This will place the container as a sibling in the given direction within
> the parent container.
>
> Dropping into the outer region moves the con beside the target. If the
> move direction goes against the orientation of the parent container, the
> con moves out of the row.
- Fix crash: Ignore containers without a managed window (eg i3bar)
Redraw split container parents when swapping child containers
Split container parents should be redrawn when swapping child containers so they show the correct window ordering (note without this higher level split parent container titles will only update when changing layout or moving child cons in/out.
Remove end token from BINDCOMMAND
fixesi3/i3#5000: bindsym command cannot be empty, because NULL string
causes i3 to segfault when copied in configure_binding()
