| Commit message (Collapse) | Author | Age |
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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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The bumpy one, again. Every `.py` outside `vendor/` plus the three `contrib/`
scripts that are Python with no extension: 60 files, 6,714 lines rewritten, no
behaviour changed. Nothing here is worth reading -- the next commit adds it to
`.git-blame-ignore-revs` so `git blame` walks past it.
It is a bigger reformat than the C was, 60% of the lines against 17%, and for a
reason worth writing down rather than tuning away: ruff and black break a call that
does not fit onto one argument per line, where this code aligned the continuation
under the opening paren. The test suite is thousands of `check("some prose", cond,
detail)` calls, so nearly every one of them changed shape and the suite grew 3,308
lines. Line length was the one lever that moved it -- 120 columns would have been a
40% reformat and no growth at all -- and it was left at 88, because picking an
unusual width to dodge a one-time diff is paying forever to avoid paying once.
Import sorting came with it. Two files had `import os, pty, uuid, select, struct,
sys, termios, time, fcntl, signal` on one line and now have ten.
Verified after, not before, because a formatter that alters behaviour would be
worse than none:
- `make retest`, 1801 checks green -- and this reformats the suite that does the
checking, including `harness.py`, which every one of those files imports.
- `make test-live`, the tty tests the fast suite skips. They matter here more than
usual: `live_input.py` and `live_m0.py` are two of the files whose comma-imports
were split, and nothing in the fast suite would have noticed if that broke them.
- All 60 files still compile, `make fmt` twice in a row changes nothing the second
time, and `ruff check --select I` has nothing left to say.
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printf '\033]5577;1;shader;\033\\' # from the program
sl0ppty cmd '{"cmd":"clear-shaders","id":0}' # from outside it
bind "z" "clear-shaders" # from the keyboard
`app_clear_pane_shaders` empties both of a pane's chains and says whether
there was anything there, which is what lets a key answer "shaders cleared"
or "no shaders on this pane" instead of maybe having done something.
In-band it is not a new verb: naming no rect means all of them. `shader;`
sits under `shader;chrome;` and `shader;content;` as the degenerate case of
"which rect", so a program puts a pane back in one exchange and cannot leave
it half done. `contrib/shader-repl`'s `:both` now uses that rather than two.
**None of the three is gated on `in_band_shaders`.** A chain outlives the
setting that allowed it -- paint a pane, then turn the setting off, and the
paint is still there, because a chain belongs to the pane and not to the file
(there is a test that reloads with it off and clears anyway). A way out that
the setting can take away is not a way out. The operator path matters for the
same reason: the program that made a pane unreadable is not always in a state
to put it back.
They clear what the *pane* set. The config's chains and the session's own
dimming are not this pane's doing and are derived every frame anyway.
The action is bound to nothing, like `scroll-up`: it is in the palette, which
is what the palette is for, and the docs say to bind it if you leave the
setting on. Which is where a second bug turned up -- the palette truncates a
label at 26 characters, so "undo this pane's own shaders" read as "undo this
pane's own shade" on screen. Renamed to fit, and `tests/test_palette.py` now
checks every label against the column, since nothing failed for that: it just
looked like a typo in front of someone.
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Five things, in one commit because they land in the same few files --
the action table, the shader pass, config.kdl -- and splitting them by
hunk would buy a tidier log at the price of commits that do not build.
Each is verified end to end; the suite is 46 files green.
Chrome shaders. `where="chrome"` on any entry in `shaders` or in a
`states` block runs that pass over a pane's frame -- border, padding,
title, buttons -- instead of its contents. Nothing else changes: same
registry, same `amount`, same expressions, same chain order, one new
word, because a frame is another rect and so it is another pass. It runs
over the frame's whole rect with the contents punched out as a hole,
rather than four passes over four sides: an effect has to be able to
travel round a border, and four passes would each count x/y from zero
and restart at every corner. The hole keeps the two honest -- a skipped
cell is never visited, so a full-strength chrome tint cannot reach your
text. It is also the only kind of pass that can colour a pane a small
window has collapsed to a single row (D6), which is the state where a
colour is worth the most.
`channel="fg"|"bg"|"both"` came out of looking at the first border
flash: `tint` mixes both of a cell's colours, and a frame's background
is the terminal's own default, so the pass materialised it to our guess
at that default and mixed towards the colour -- a dark rectangle behind
the glyphs, left there until the pane changed state. The mask is
enforced by the pass, not the shader: the other colour is snapshotted
before materialising and put back after, so an unset colour goes back to
unset, it works for a built-in and a plugin alike, and no shader grows
an fg-only twin of itself.
A `bell` pane state and a `since` variable, because "flash the border
when a pane rings" needed both and neither existed. `since` is
milliseconds since the pane entered its current state, stamped in the
one function that decides the state -- a transition is the one thing a
frame cannot tell you, so it is remembered where it cannot disagree with
the state it dates. `bell` ranks above the ambient states and below
`dead`: a pane that rang while you were elsewhere is news, and a pane
that rang and then exited is a pane that exited. It ends when you look
at the pane, because that is what answering a bell is.
Animation needed a clock and did not have one: a shader reading `t` only
advanced when something else caused a frame, so a pulse froze the moment
you stopped typing. `app_next_deadline_ms` now reports `anim_ms` while a
chain that reads the clock ran over the last frame -- derived from what
was applied, so a pulse hung off `dead` costs a clock while a pane is
dead and nothing for the rest of the session. A `deadline` verb makes
that observable; the server's poll loop already lived on the number.
contrib/chrome has seven presets and the perimeter trick they are built
on: on a frame the coordinate you want is distance along the ring, which
the language can work out, and `min(d, P - d)` is what makes an effect
cross the corner it started from. Hand-written, unlike contrib/shaders,
because the toy previews contents and a frame has no preview to give --
so tests/test_chrome_presets.py checks each one the only way left: load
it into a real session, assert the frame moves and the contents do not.
`equalize` (C-a =) puts every share back to even: each split's children
weighted by how many visible panes are behind them, so one pane beside a
stack of three is a quarter of the width and "even" means the same thing
at every depth. Exactly equal cell counts are not something a tree can
always express, so the action promises the even division it can.
`rotate-layout` (C-a Space) turns the whole tab a quarter turn
clockwise. Every split changes axis and a row split's children reverse,
because the pane on top of a stack is the pane on the right once you
turn it; get that asymmetry wrong and you have a mirror image, which
looks almost right until four turns fail to come back. They do come
back, exactly, which is why the inverse is three more turns rather than
a second mirrored routine with its own chance of being wrong -- and why
a key as easy as space is the right one rather than a hazard. A turn is
refused when it would not fit: a share of the height is not always a
share the width can afford, and a node that cannot give its children
their floor takes the whole tab down to a list. So the turn is tried,
the layout is asked what it made of it, and one that flattened the tab
is put back with a word. Same rule `split_fits` applies to splitting.
Keys: the palette moves from `shift+p` to `p`, and cycling tabs from
`n`/`p` to tab/shift+tab. `p` is pressed far more often than "the tab
before this one" and was the only shifted letter in the defaults; tab is
what every other tabbed thing cycles with, and `\e[Z` decodes as
shift+tab on a plain terminal, so this costs nothing on a client without
the kitty protocol. `n` is free again. The actions are untouched: two
lines of config put the old binds back.
The shader ABI goes to 3: `shade_ctx_t` gained `state_ms` and struct
shader gained `channels`, both the pass's business rather than a
shader's. Plugins need a rebuild, which is what the version is for.
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Every action by name, without having to know its key. The cheatsheet
answers "what is the key for this?" and then needs you to press it; this
answers "just do the thing", which is the question you have when you
cannot remember there was a key at all. `C-a shift+p` by default, and
`bind "<key>" "palette"` for anything else.
It lists actions that are bound to nothing, which the cheatsheet by
design cannot -- that sheet is built from the binds, so an action with no
key does not appear on it, and that is exactly the action you have no
other way to reach. Two of ours are in that state today (scroll by a
line, either direction). Where a binding does exist the palette shows it
beside the row, so using the palette teaches the key that would have
skipped it. Where several exist it shows them all: a config's binds add
to the defaults rather than replacing them, so naming only the first
would hide the one the user actually chose.
Rows match on the phrase, the group, and the name a config file uses, so
"split into columns", "panes" and "split-cols" all find the same thing
depending on whether you have been editing the config lately.
The finder and the palette are now one picker with a subject rather than
two machines that would drift -- the same modal, query, filtered list,
selection, keys and mouse rules, differing only in what fills the rows
and what Enter does with one. Choosing goes through the row's own action
string, so the keyboard and the mouse cannot take different paths to the
same row. The finder's 55 checks pass unchanged across the refactor.
Left out on purpose: `literal-prefix`, which means "type this key"
rather than "do this thing" and picked from a list would send the prefix
to a pane hidden behind that list; and `select-tab-N`, which is
positional, so a row reading "go to that tab" cannot say which.
Running is by action rather than by synthesising the keystroke that
would have caused it -- a palette that had to invent input to do its job
would be lying to the rest of the program about what happened. That
meant splitting prefix_command in two, which it wanted anyway: the
lookup and the doing were only ever together by accident.
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