When alternate key reporting is enabled (i.e. when we're supposed to
report the shifted key along with the unshifted key), we try to figure
out whether the key really is shifted or not (and thus which xkb
keysym to use for the unshifted and shifted keys in the escape).
This was done by getting the layout's *all* modifier combinations that
produce the shifted keysym, and if any of of them contained a modifier
that isn't supported by the kitty protocol, the shifted and unshifted
keys are derived from the same keysym. This is to ensure we handle
things like AltGr-combos correctly.
The issue is, since there may be more than one modifier combination
generating the shifted keysym, we may end up using the wrong keysym
just because _another_ combination set contains modifiers not
supported by the kitty protocol. What we're interrested in is whether
the *pressed* set of modifiers contains such modifiers.
Closes#1918
If the compositor sends a keyboard enter event before our window has
been mapped, foot crashes; the enter event triggers a cursor
refresh (hollow -> non-hollow block cursor), which crashes since we
haven't yet allocated a grid.
Fix by no-op:ing the refresh if the window hasn't been configured yet.
Closes#1910
From the release notes:
system bell - allowing e.g. terminal emulators to hand off system
bell alerts to the compositor for among other things accessibility
purposes
The new protocol is used when the new config option
bell.system=yes (and the compositor implements the protocol,
obviously).
The system bell is rung independent of whether the foot window has
keyboard focus or not (thus relying on compositor configuration to
determine whether anything should be done or not in response to the
bell).
The new option is enabled by default.
If the compositor sends a keyboard enter event before our window has
been mapped, foot crashes; the enter event triggers a cursor
refresh (hollow -> non-hollow block cursor), which crashes since we
haven't yet allocated a grid.
Fix by no-op:ing the refresh if the window hasn't been configured yet.
Closes#1910
A compositor will not send a frame callback for our main window if it
is fully occluded (for example, by a fully opaque overlay...). This
causes the overlay to stuck.
For regular buffers, it _should_ be enough to *not* hint the
compositor it's opaque. But at least some compositor special cases
single-pixel buffers, and actually look at their pixel value.
Thus, we have two options: implement frame callback handling for the
overlay sub-surface, or ensure we don't use a fully opaque
surface. Since no overlays are fully opaque by default, and the flash
surface is the only one that can be configured to be
opaque (colors.flash-alpha), and since adding frame callback handling
adds a lot of boilerplate code... let's go with the simpler solution
of
Unsure if the protocol imposes a limit (haven't found any
documentation), or if the issue is in the libwayland implementation,
or wlroots (triggers in at least sway+river).
The issue is that setting a too long app-id causes the
compositor (river at least) to peg the CPU at 100%, and stop sending
e.g. frame callbacks to foot.
Closes#1897
From the specification:
The Enter, Tab and Backspace keys will not have release events
unless Report all keys as escape codes is also set, so that the
user can still type reset at a shell prompt when a program that
sets this mode ends without resetting it.
Closes#1892
It appears to be slightly more up-to-date with recent Unicode
versions.
In particular, it handles the new "Symbols for Legacy Computing
Supplement" block, introduced in Unicode 16.
Closes#1865
This fixes flickering when foot is forced to double-buffer (e.g when
running under KDE, or smithay based compositors).
Since the damage region isn't updated, the sixel images aren't
included in the memcpy that is done to transfer the last frame's
updated regions to the next frame.
As a result, every other frame will have the sixels, while the others
don't.
Closes#1851
When trying to set a custom cursor shape, we first validate it. This
is done by checking against known server-side names, and then trying
to load the cursor from the client side cursor theme.
But, if we're using server side names, there is no theme loaded, and
foot crashed.
Fix by checking if we have a theme loaded, and if not, fail the cursor
shape name validation.
* The toplevel icon is now set to the app-id, unless "overridden" by
OSC-1 or OSC-0.
* Implemented OSC-1
* OSC-0 extended to also set the icon
* Implemented CSI 20 t - report window icon
* Implemented CSI 21 t - report window title
* Implemented CSI 22 ; 1 t - push window icon
* Implemented CS 23 ; 1 t - pop window icon
* Extended CSI 22/23 ; 0 t to also push/pop the icon
* Verify app-id set by OSC-176 is valid UTF-8
* Verify icon set by OSC-0/1 is valid UTF-8
The config system allows setting the scrollback lines to
2**32-1.
However, the total number of grid lines is the scrollback lines plus
the window size, and then rounded *up* to the nearest power of two.
Furthermore, the number of rows is represented with a plain 'int'
throughout the code base.
The largest positive integer that fits in an int is 2**31-1. That
however, is not a power of two.
The largest positive integer, that also is a power of two, that fits
in an int is 2**30, or 1073741824.
Ideally, we'd just cast the line count to a 64-bit integer, and call
__builtin_clzl{,l}() on it, and then take the smallest value of that,
or 2**30. But, for some reason, __builtin_clzl(), and
__builtin_clzll() appears to ignore bits above 32, despite they being
typed to long and long long. Bug?
Instead, ensure we never call __builtin_clz() on anything larger than
2**30.
Closes#1828
That is, skip the reverse DNS naming scheme suggested by the .desktop
specification, and directly match our app-ids ("foot", and
"footclient").
This simplifies .desktop -> window instance mapping, allowing DEs to
match the filenames directly, without having to look at the
StartupWMClass key in the .desktop files.
These are the original names of the .desktop files. There were
renamed (to use the reverse DNS syntax) to please the flathub people,
who *required* this scheme to accept the foot package.
But, since:
* We don't package foot ourselves
* We don't go out of our way to support non-distro packaging schemes
* Flathub still hasn't merged the foot PR (it's now 2 years old)
* There are no know issues in any known DE that prevents a non-reverse
DNS .desktop filename from working
* There are plenty of other applications that doesn't use reverse DNS
names (a very clear majority, in my case)
Let's just revert back to the simpler naming scheme.
Closes#1607
The wording in the original VT340 documentation is vague:
Pixel positions specified as 0 are set to the current background
color.
What does that mean? We _thought_ it meant the current ANSI background
color, as set with e.g. CSI 4x m.
It's still all a bit vague, but seeing that we have separate palettes
for text and graphic (should we?), it doesn't make sense to use the
ANSI background color as the default sixel background color.
So, use entry 0 from the sixel palette instead.
Or put more propertly; if the notification daemon, and the
notification helper used by foot has been configured
properly (i.e. they both support XDG activation tokens), notifications
generated by BEL and OSC-777 will now raise/focus the window when the
default action of the notification is activated - typically by
clicking the notification.
Closes#1822
