| Commit message (Collapse) | Author | Age |
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docs/layouts.md always said an absent coordinate takes the centred
default; the loader said 0, and a layout float with only w= h= landed
in the top-left corner. Now an axis the file does not name is
FLOAT_CENTRE, a sentinel no real coordinate can reach, and float_clamp
answers it with the middle -- every frame, at whatever size the
terminal is by then, until an explicit move or resize writes a real
number over it. The webdemo's welcome float is the customer: it must
sit centred on a terminal whose size the layout file cannot know.
The dump writes a still-centred axis by omission, because the number
it happened to land on would pin to this screen's size the one intent
that deliberately has none. Every mutating verb already writes back
from the drawn rect, so the sentinel survives nothing it should not.
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`C-a e` on a Windows with no editor installed opened notepad, which is
a GUI program: the pane it was spawned in drew nothing, so the split
sat there empty while the config opened in a window somewhere else.
The toast said as much, but a pane you have to be told to ignore is
still the wrong answer.
Windows 11 24H2 ships Microsoft Edit as `edit`, and it is a console
program -- it fills the pane like nvim or nano would, so the fallback
now has the same shape as the thing it is falling back from, and a
first-time user gets a usable editor without installing one.
It goes last of the console editors rather than first. Having fetched
nvim is a statement of preference; having been shipped `edit` says
nothing about what you want, so anything you chose yourself outranks
it. notepad stays behind it: `edit` is not on Windows 10, or on 11
before 24H2, and something that opens is better than nothing when the
alternative is an empty pane.
sl_which() already tries .exe, so it is found as installed; the search
still only runs when neither EDITOR nor the config asked for anything.
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slosh builds and runs on Windows 10/11, x86-64 and ARM64, as one exe
with no runtime dependency beyond the OS: panes, splits, tabs,
detachable sessions, the config file and its live reload, the control
socket, the mouse.
The port is a compatibility layer rather than a fork. compat/win holds
stub <poll.h>, <sys/socket.h>, <termios.h> and friends that redirect to
include/compat_win.h, which is force-included ahead of every translation
unit -- so the existing sources keep their POSIX includes and their
POSIX call sites, and the platform differences are answered in one
place.
Two decisions carry most of it.
Everything the event loop waits on is a socket. On POSIX a pty master,
an inotify descriptor and a unix socket are all file descriptors, so one
poll() covers them; Windows has no such union, and WSAPoll waits on
SOCKETs and nothing else. Rather than rewrite server.c's loop around
WaitForMultipleObjects -- which caps at 64 objects and cannot express
POLLOUT -- each non-socket source gets a pump thread that copies it into
one end of a loopback socketpair. The loop is then the POSIX one
unchanged, and only what sits behind the descriptor differs.
Socket descriptors are tagged rather than guessed: a wrapped SOCKET
comes back as SL_SOCK_BASE + slot, so read, write, close and poll can
tell a socket from a CRT descriptor with certainty instead of inferring
it from the numeric range. That is why socket() and accept() are shimmed
too -- an untagged descriptor escaping into the loop is the one failure
mode this scheme has, and it is worth closing completely.
Three things bit hard enough to be worth naming.
A pseudoconsole does not stop the child inheriting your stdio.
CreateProcess copies the parent's standard handles into the child when
STARTF_USESTDHANDLES is absent, and those win. With slosh's own stdout
redirected -- a pipe under ssh, a file under --script, a log under the
daemon -- the shell wrote its banner into slosh's output instead of into
the pane, and the pane had a correct title (ConPTY emits that itself)
over an empty body. The three handles are cleared for the duration of
the call, leaving the child nothing to inherit.
A ConPTY never reports EOF. The output pipe belongs to the
pseudoconsole, not to the child, so it stays open after the child exits
and pane_pump()'s read() -- the entire mechanism by which a pane learns
its program is gone -- never returns 0. A pane whose shell had been told
`exit` sat there looking alive forever. So the exit is waited for on the
process handle, and ClosePseudoConsole is what then produces the EOF.
That third thread is also why the per-pty state is reference counted: a
pump blocked on a dead pipe must not be waited for, or pty_close would
hang the session on the one program that misbehaves, so whoever finishes
last frees.
cmd.exe does not use CommandLineToArgvW's quoting. A literal quote is
\" to an ordinary program and a backslash-then-end-of-quoted-section to
cmd, so building `cmd /c notepad "C:\...\config.kdl"` the first way
handed the editor \"C:\...\config.kdl\", backslashes and all, and
notepad answered "Not a valid file name" about a path that existed.
cmd /c now gets the rest of the line verbatim -- the caller composed a
complete command with its own quoting, exactly as it does for sh -c.
Paths are mixed, and only some programs mind. slosh joins with '/' while
the environment supplies '\', so the config landed at
C:\Users\you/.config/slosh/config.kdl. The CRT opens that without
complaint, which is why --check reported it fine, but a GUI file dialog
rejects it outright. Anything handed to another program now goes through
sl_path_native() first; the internal representation is left alone.
The rest is small. Panes run %ComSpec%, sessions live in
%LOCALAPPDATA%\slosh rather than $XDG_RUNTIME_DIR because a session
socket must not follow a roaming profile to another host, there is no
SIGWINCH so a resize is noticed by comparing the console size on a
bounded poll, no fork so the daemon is a fresh detached process that
reconstructs its arguments on the command line, and no process group on
a pty so the foreground program is the youngest descendant of the pane's
shell. C-a e prefers whichever console editor is actually installed --
notepad is a GUI program, so a pane running it draws nothing and looks
broken -- and says so when it has to fall back.
make -f Makefile.windows ARCH=x86_64 (or aarch64) cross-compiles from a
mac or Linux, and builds natively on the box with zig on PATH.
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One knob, `compact true`: panes pack flush against 1-cell divider lines
that meet in real junctions, one frame rings the tab, and a pane's title
rides the line above it -- a boundary costs one cell where the default
look spends four. The lines are strokes: each write says which edges of
its cell it needs, unions with what is there, and never clobbers text,
so ├ ┬ ┼ fall out of paint order and the focus ring recolours without
inventing arms. The divider *is* the gap (eff_gap, one answer for the
layout, split_fits and the resize clamp), so gap hits, hover hints and
corner drags work unchanged. Interior edges give up click-to-split --
one cell cannot hold two verbs -- and a pane's status row overlays its
last content row. Floats, zoom and the D6 flatten keep classic frames
through place_hidden: zero new tree cases.
Underneath it, mode or no mode: a border drag now moves the boundary on
that side, converted on the first motion so the press that never moves
keeps its old meaning -- the handle's click still splits, the rim's is
still deliberately nothing (drag.rim). Which is also the fix for gap 0,
where flush panes leave no gap cell to grab and the resize gesture had
silently vanished with it.
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A split, the config editor or a new float while zoomed used to land the
new pane behind the pane filling the tab -- which looks exactly like the
verb having failed. Whoever asked for a new pane asked to see it, so the
zoom yields, in place_beside where every such arrival funnels through;
the move-pane unzoom was this rule as a special case and folds in.
Minimising the zoomed pane ends the zoom too, or the layout would solo a
pane the strip now holds.
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Brackets were tried and still read as text. Each min-bar entry is now a
three-row chip wearing a real pane frame -- the same corners, because a
frame is what a pane *looks like* in this program, so a shrunken one reads
as exactly what it is: a pane, clickable. The put-away mark rides inside
each chip and the lone legend is gone; a rung pane's bell mark keeps its
own colour inside the frame; hover lights the whole chip and the whole
chip is the hit. The bar costs three rows instead of one while anything
is minimised (and nothing when nothing is), which is what an affordance
that works is worth.
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A dumped session quietly re-tiled its floats, which was the one data-loss
gap left in D22. dump-layout now records `floating=true x= y= w= h=` -- the
*wanted* rect, because intent is what survives a session and the next
screen's layout clamps it like any frame -- layout files declare the same
(linted: floating is a bool, x/y/w/h mean nothing without it), and a file
whose every pane floats self-heals through ensure_tiled: the top float
lands, the same rule closing the last tiled pane follows, no lint required.
save-workspace inherits all of it from the shared dumper.
`float` over the API takes x/y/w/h and then *places* rather than toggles --
a placement is a statement about where, not about whether -- floating the
pane first when it is tiled, re-placing when it already floats, with
omitted fields meaning "keep". The intent is stored exactly as asked: the
write-back rule is for hands, whose drags need the clamp to agree with the
eye; a script means what it typed.
And kitty graphics respect the stack. The cell compositor gets occlusion
free from paint order, but placements are sent after the diff and would
paint an image straight over a float covering it. Each pane's placements
are now clipped by the float rects above it -- every float for a tiled
pane, the higher-raised for a float -- cropping what one clean edge can
express (the pane-edge source-rectangle arithmetic aimed at another
clipper, including from the top and left, where the source origin moves and
the sub-cell offset is consumed) and suppressing what it cannot: a strip
across the middle or a corner overlap leaves a shape one placement cannot
say, and the image returns whole when the float moves. No z= needed --
clipping is the z-order, since nothing is ever allowed to overlap.
D22's "still owed" paragraph is paid and rewritten; M10 is fully checked.
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A pane can float: lifted out of the layout, drawn over the tiled panes and
under the modals, freely moved and shaped. The model is a flag and a rect on
the leaf, exactly like `minimized` -- the seat in the tree is kept, layout
skips it, the siblings absorb its share, and un-floating returns it home.
The drawn rect is the wanted one clamped to the tab every frame, never
written back, so a terminal squeeze round-trips exactly; an explicit move or
resize *does* write back, because the hand is the author of the intent.
Floating pops the pane to the centre: the jump is what says it happened.
Painted after everything tiled, so the hit list -- searched backwards --
resolves an overlap to the float you can see: the z-order and the click
order are the same list. It casts a shadow (float_shadow, one number), and
`floating` joins the states table above `unfocused`, so a float is never
dimmed as merely-unfocused.
The hands: the title moves it, any other border resizes it (a bottom corner
on both axes; the grabbed edge pins at walls and floors, never sliding the
window), H J K L move a focused float, the =/+ key grows it about its
centre, `-` shrinks it (its split was a refusal anyway), and hovering shows
which edges a grab would take, from the same derivation the press uses.
Equalize moved to `0` to free the key; `C-a f` floats (finder went to `s`,
where it reads as search); `C-a F` opens a new floating shell -- the
throwaway terminal; the function row f1..f12 became nameable in configs
along the way. Guards throughout: the last tiled pane cannot float or
minimize away, closing it lands the top float, splits are refused with
their own words, floats are not swap targets.
Dropping got a grammar: while a pane is carried, the pane under the pointer
subdivides into a swap centre and four edge bands meaning "insert me beside
this pane, on this side" -- detach_leaf + place_beside, the surgery
cross-tab moves already had. Bands are thirds (the first map of quarters
showed the swap owning half of each axis), the hovered band fills the half
the drop would hand over, the release resolves against the painted frame's
hits so it cannot disagree with the fill, and a drop between siblings along
the axis is a reorder that always fits -- refusing it was refusing the most
ordinary drag there is.
Also: rename-pane/rename-tab as palette actions (renaming was a
double-click and nothing else, the one verb the palette could not reach),
and C-u clears the rename editor like it clears the picker's query.
Design log in PLAN-FLOATING-PANES.md; to fold into DESIGN.md as D22/M10-11.
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app.c was 7k lines wearing section markers; now the markers are files,
cut exactly along them, no behaviour change:
app.c the session core: config in force, pane and tab
lifecycle, walking, input routing, introspection
app_layout.c layout, tree edits, resizing, equalising, rotating,
focus
app_session.c layout files, checking, workspaces, dumping a session
app_draw.c drawing, the shader passes, kitty graphics
app_ui.c the finder, modals, the palette, the project picker,
renaming
include/app_internal.h carries what the five share: the tree/tab/app
structs, CFG and the palette macros, and the 50-odd formerly static
functions the cut made cross-unit, declared where they are defined.
They keep their names; only the five units see the header.
One test moved with the code: test_portable_layouts' staleness check
greps the source for the layouts section, which now lives in
app_session.c.
Mechanical, so blame for anything in the four new files continues in
app.c before this commit.
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