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* sl0p: make the split button work on stacked panes toouser2026-08-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reported still dead on a live session after the previous fix. Stacks move the frame twice more, and neither move was in the hit-test: - a stack list is drawn over the top rows of its visible member, pushing that pane's frame down. The renderer applies this as a frame geom override (reserved_top_rows); the click side did not, so every pane in a stack was clickable one row above its own title. frame_rect_with_top_reserved() now applies the same shift, before the gap inset, in the same order as render; - a stack's collapsed members drew a button on their one-row title. Nothing could honour it -- that row is the stack's picker, and "split the pane that is not on screen" is not a thing to ask anyway. They no longer draw one, and the click side mirrors the condition. 120 snapshot lines change, every one of them a one-liner losing its button and nothing else (same width, same content otherwise; audited mechanically). Both confirmed by reintroducing each bug and watching the check fail. A third candidate fix -- resolving a click to the stack's visible member, on the theory that get_pane_at could return a collapsed sibling -- turned out to be unnecessary: collapsed members have one-row geoms, so position lookup already lands on the right pane. Removed rather than kept "just in case". The check itself was wrong twice before it was right, in the direction that matters most (reporting failures that were its own): it now reads until the pty goes quiet instead of for a fixed time, and parses only a freshly forced repaint, so a half-arrived screen cannot look like a button drawn where it is not. It clicks every button it can see, and runs against config/config.kdl as well, whose stacks the minimal config never had. When the two disagree, the server's own log settles it: log::info! in intercept_split_button_click, read /tmp/sl0ppij-$UID/sl0ppij-log/.
* sl0p: draw the split button always, not only on hoveruser2026-08-13
| | | | | | | | | | | | | | | | | | | | | | | | The hover-gated version did not work. `mouse_is_hovering_over_pane` never became true in a live session, so the `+` was invisible while its hit-test -- which is geometric and never consulted hover -- kept working. Clickable but invisible is the worst of both, and it is exactly the failure the shared `split_button_columns()` was supposed to prevent: that guarantees render and hit-test agree on WHERE, not on WHETHER. Reported as "I hover over panes but don't see a +". My end-to-end test had proved the click, not the button, and the passing snapshots only proved the renderer works when the flag is set. Why the flag is false live is still open and is written into the code comment: the plumbing from `mouse_hover_pane_id` through `FrameParams` reads correctly, and the config that reproduces it sets both `advanced_mouse_actions` and `mouse_hover_effects`. Re-gate on hover only once that is understood AND shown on a real session rather than in a snapshot. 265 snapshots updated: every pane frame now carries the button. 233 are mechanically provable as button-only (the ` + ` replaces three horizontal glyphs before a corner); the remaining 32 differ only by a header line offset in the comparison, with the same substitution underneath.
* sl0p: a mouse affordance for splitting a paneuser2026-08-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Switching panes, switching tabs, renaming, reordering and resizing all have a mouse path in this fork. Spawning a pane did not: it was keyboard-only. A `+` now appears at the right end of a pane's title line while the pointer is over that pane, and clicking it splits the pane. Hover-driven rather than always drawn, for the same reason the resize hint and the status bar button highlight are: a permanent `+` on every frame is noise, and the pointer being there is exactly when the button is useful. render ui/pane_boundaries_frame.rs::render_split_button hit tab/mouse_handler.rs::intercept_split_button_click shared split_button_columns(), so what is clickable is what is visible The button sits immediately left of the top-right corner and the existing scroll and pin indications get the room that is left. That ordering is deliberate: a fixed position relative to the pane's right edge is one the mouse handler can hit-test directly, instead of re-deriving the whole title layout the way `status_bar_button_at` has to. The clicked pane is focused first, then the split is requested exactly as a keybinding would (`PtyInstruction::SpawnTerminal` with `NoPreference`), so mouse and keyboard produce the same arrangement and the split lands on the pane whose button was clicked rather than whichever pane happened to be focused. Not drawn on floating panes: their PIN control owns that corner and is hit-tested by its drawn position, so anything to its right silently moves it out from under the pointer. Caught by test_ctrl_click_on_floating_pin_button_toggles_pin, which stopped pinning. Verified on the test box by injecting real SGR mouse events into an attached client's pty at 160x45: click on the button 1 -> 2 panes click on the title 1 -> 1 click mid-frame 1 -> 1 Two hover snapshots updated, and only those two: the `+` on the hovered pane (including an unfocused one -- splitting a pane you are not in is useful). zellij-server 1502 pass, zellij-utils 473 pass.
* sl0p: --purpose flag and tab-level purposeuser2026-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Completes the two pieces deferred from the first workspace-hints pass. `zellij run --purpose X` / `zellij action new-pane --purpose X` tag a pane at spawn time, which is what an agent wants for panes it creates itself; the OSC wrapper still works for programs that declare their own role. Not supported with --in-place, which replaces another pane rather than being a pane of its own: clap rejects the combination rather than accepting a flag that would do nothing. `tab name="work" purpose="agent-work"` gives a whole tab a role, reported by `list-tabs --json`. It rides the tab's ROOT layout node, reusing the pane field because a tab's root is the tab container and never itself a pane -- asserted by a test for the tightest case (a tab holding exactly one pane), since a leak there would silently mislabel a pane. The interesting part is why the flag first shipped broken. There are TWO protobuf boundaries -- the plugin API and the client->server IPC contract -- and a CLI flag must cross the second one. Defaulting the field in the conversion (what "no protoc" usually forces) compiles cleanly and then silently drops the value in transit, so --purpose parsed, printed a pane id, and did nothing. Fixed by adding the field to both contracts by hand, in the .proto AND the committed generated prost, kept in lockstep so a future regeneration reproduces it: protoc is only needed to regenerate, not to build. Both boundaries now have a round-trip test, and the IPC one was confirmed to fail when the wire read is removed. Sanitising moved to Grid::set_authoritative_purpose, the single choke point every out-of-band source passes through, after the CLI path was observed delivering `bad purpose; rm -rf /` intact into list-panes --json.
* sl0p: per-pane workspace hints (purpose=)user2026-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implements the zellij half of sl0p/workspace-hints-proposal.md: a pane can carry an opaque agent-facing hint for what it is FOR, so a project can ship a layout that an agent is able to navigate instead of guessing. zellij never interprets a purpose. The consuming agent owns the entire vocabulary, which is what keeps this to one string threaded along the existing status_bar path rather than a policy engine, and lets the vocabulary change without a rebuild. Two ways in, because declared panes and agent-created panes are different: layout: pane name="server" purpose="dev-server" in-band: printf '\033]5577;1;purpose;agent:build\033\\' The second exists because tagging at spawn time would mean threading a field through 28 SpawnTerminal call sites, and a new action variant is impossible while protobuf enums cannot be regenerated. Wrapping the command costs one printf. A declared purpose outranks an in-band one and cannot be overridden or cleared by it. OSC arrives from whatever the pane happens to be showing, so otherwise a `cat hostile.txt` in the human's editor pane could relabel it as the agent's scratch pane and invite an agent to run commands where the human is working. A layout is written by a human in a file they can read; in-band data only fills a blank. Exposed on PaneListEntry (`list-panes --json`) rather than PaneInfo, which crosses the plugin protobuf API we cannot regenerate; resolved in the screen thread where panes live rather than via route.rs's per-pane PTY round-trips. Values are sanitised to a bounded [A-Za-z0-9_.:/-] token at both entry points, because a purpose is never rendered -- it is matched against and pasted into consumers' shell and JSON pipelines. Verified end to end rather than by inspection: purposes from a layout appear in list-panes --json against the right pane ids, an agent-spawned pane tags itself, a declared purpose survives an in-band override attempt, all of it comes back after kill + resurrect, an unknown pane property is still a parse error, and a layout with no purpose leaves dump-layout unchanged.
* sl0p: clickable action buttons in the pane status baruser2026-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Second slice of the status/action frame. A program declares buttons, and a click is reported back to it: printf '\033]5577;1;buttons;approve:Approve;reject:Reject\033\\' -> click -> program's stdin receives OSC 5577 ; 1 ; click ; approve ST The report is a FIXED format carrying only the id, never bytes the payload chose, and ids are restricted to [A-Za-z0-9_-]. The sequence that creates a button is in-band and untrusted -- `cat` of a hostile file emits it as readily as a cooperating program -- so a click that could send arbitrary bytes would let viewing a file inject into the stdin of whatever is running, a shell included. Labels are '%'-escaped since the wire format is ';'-separated, and both the button count and id length are capped because the list lives as long as the pane. Positions come from one layout_status_bar function that the renderer draws from and the hit-test resolves against. Computing that geometry twice is how the stacked-pane picker once selected the wrong pane; a test asserts every drawn column resolves back to the button drawn there, across 100 widths. Two things the drive caught that unit tests could not: - The first delivery path pushed onto grid.pending_messages_to_pty, which is only drained when the PANE produces output -- so a click on an idle program sat in the queue forever. The write now happens at the tab level, which owns the senders. - The hit-test derived the frame row from the pane's raw geometry, but this fork draws the frame inset by gap_offset, so with `gap 1` every click missed by one row. It now derives from the CONTENT rect, which is by definition the inside of the drawn frame and therefore the same columns the renderer lays out. Buttons serialise with the session like the status text, so a resurrected pane comes back with its buttons intact.
* sl0p: serialise the pane status bar for resurrectionuser2026-08-12
| | | | | | | | | | | | | | | | | | | | | | | The status bar survived detach/reattach (it lives on Grid) but not a serialise/restore cycle, so a resurrected pane came back blank. It now travels the whole per-pane serialisation pipeline, mirroring the fork's existing default_fg/default_bg: pane -> PaneLayoutMetadata -> PaneLayoutManifest -> TiledPaneLayout -> a status_bar property in the serialised KDL, then back through the normal layout parser and applied by LayoutApplier when the pane is recreated. The sanitiser moved from grid.rs into zellij-utils so both entry points share one definition. That matters: a layout file on disk is no more trustworthy than the escape sequence that wrote it -- it may have been hand-edited, or copied from somewhere else -- so restored text is stripped and length-capped on the way in just like the OSC payload was. Verified end to end rather than by unit test alone: set the bar, waited for a serialisation pass, confirmed status_bar="..." in session-layout.kdl, killed the session until list-sessions reported EXITED, then attached and watched it come back from disk. The earlier attempt only proved detach/reattach because Quit had left the session alive.
* sl0p: separate the hover resize hint from the hover highlightuser2026-08-12
| | | | | | | | | | | | | | | | | | Upstream's mouse_hover_effects governs two unrelated things: the frame highlight on hover, and the "Ctrl <MouseScroll> or <drag borders> to resize" hint. Its own comment in default.kdl admits as much. So silencing a beginner reminder you have outgrown also costs you a highlight that stays useful indefinitely. mouse_hover_help_text (default true) gates only the hint. One line in execute_send_to_terminal; the highlight is set in execute_update_hover and is untouched. Config-file only, deliberately. The option has no protobuf slot, so it does not cross the client/server IPC contract -- the roundtrip test asserts exactly that, with the fixture set to None and a comment explaining why. It still works from the config file because the server parses the file itself and Options::merge keeps the file value when the client sends None; a CLI flag would be silently ignored.
* sl0p: add a minimal style for the stacked-pane pickeruser2026-08-12
| | | | | | | | | | | | | | | | | | | | | The boxed entries read as clutter: every entry bracketed in vertical bars, and the active one marked by a "> " that sits outside its own cell. `stack_list_style "minimal"` drops both. The active entry is shown by inverting it instead, which needs no glyph and no column, and the padding is moved inside the styled run so the inverted block covers the whole cell rather than leaving unstyled gaps at its edges. Four fewer columns of decoration per entry, so more fit per row in grid mode. Uses ribbon_selected rather than text_selected. Themes give ribbon_selected real contrast because it marks the selected item elsewhere in zellij's UI -- gruber yellow here, white-on-blue in the TempleOS theme -- whereas text_selected's background is 40,40,40 against a 24,24,24 terminal and read as essentially no highlight when tried. Decoration width comes from the style itself, so Tab's column arithmetic and the renderer cannot disagree about how wide an entry is. Default stays boxed, so nothing changes for anyone who does not ask.
* sl0p: optionally render the stacked-pane picker as a griduser2026-08-12
| | | | | | | | | | | | | | | | | | | | | | | `stack_list_layout "grid"` packs picker entries several per row, which turns stack_list_max_rows from a count into a space budget: eight panes in a wide terminal now fit on one row instead of spending three and hiding five. The entry renderer already drew each entry as a single chunk at its own x/y, sized by its geom and centring its own label, so a grid needed no rendering changes at all -- only the loop assigning every entry the same x and the full width. Column count is derived from the widest label rather than configured, so it adapts to the titles; one column is the floor and reproduces the previous full-width rows byte for byte. The row -> member mapping now has a column axis, and it had already caused one wrong-pane bug when two consumers disagreed. So the layout is computed once, by one function, into explicit cells; the renderer, the reserved-row budget and the mouse hit-test all read those same cells rather than each doing their own arithmetic. Windowing is by row, so a grid scrolls a whole row at a time and degrades to the old per-member window when there is one column. Cells are separated by a two-column gap: without it the focused entry's "> " marker sits flush against the previous cell and reads as belonging to it.
* sl0p: cap how many rows the stacked-pane picker takesuser2026-08-12
| | | | | | | | | | | | | | | | | | | | | | | A stack reserves one row per member plus a padding row, so a deep stack spends most of the screen listing itself. `stack_list_max_rows` caps that; the list windows around the focused member and reports the rest as "+N more". The indicator goes in the padding row the list already reserves, so it costs no extra row and never displaces a real entry. Entries keep their real rank rather than renumbering from 1, otherwise the numbering stops meaning anything once the window has scrolled. The window slides on ordinary focus movement, which is also why this needs no new keybinding -- Action is a protobuf enum and the prost assets cannot be regenerated here (no protoc). A fixed cap rather than hover-to-expand on purpose: reserved_top_rows feeds pane geometry, so growing the list on hover would resize the pane's PTY and reflow whatever is running in it on every mouse move. A real expand/collapse has to be an overlay that reserves nothing, which is a much larger change to the render path. reserved_top_rows and the renderer both go through stack_list_window(); if they disagreed the list would draw into rows the geometry never reserved, i.e. over the pane beneath it.
* sl0p: add `arrangement` to build a tree for N panesuser2026-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A `children` placeholder inserts every pane it receives as a flat sibling. That single hardcoded policy is why a layout can only express "N equal columns", "N equal rows" or "one stack" without hand-writing a variant per pane count -- the max_panes=5 / max_panes=8 / max_panes=12 ladders in a swap layout file exist purely to work around it. `pane arrangement="grid" { children; }` builds a tree for N panes instead. Two to start: grid (ceil(sqrt(n)) columns, rows filled left to right) and master-stack (one 60%-wide master, the rest beside it). Generates a TiledPaneLayout rather than geometry, so everything downstream works unchanged: split_space, the minimum-size feasibility check, LayoutApplier, swap-layout damage tracking, and the responsive collapse. It composes with that last one for free -- a grid is simply infeasible on a narrow terminal, so it is skipped and the collapse takes over. The arrangement builds ONE self-contained subtree rather than splicing a variable number of nodes in among the placeholder's siblings, so it stays well defined next to the pre-existing "children node with sibling nodes" TODO rather than leaning on it. Like default_fg/default_bg, the field has no protobuf representation, so it is defaulted at both plugin-API boundaries and does not survive a round trip. This is why it is a field rather than a LayoutConstraint variant: a new enum variant would have no representation when converting TO protobuf, and the committed prost assets cannot be regenerated here (no protoc). The 48 snapshot updates are the new field appearing in TiledPaneLayout debug dumps (324 lines, all `children_arrangement: None`). No snapshot content was removed. The `expression:` metadata churn in those files is pre-existing drift that regeneration swept up: the stored snapshots recorded the expression before normalize_layout_debug was introduced.
* sl0p: collapse to a swap layout when the terminal gets narrowuser2026-08-12
| | | | | | | | | | | | | | | | | | | | | | | | Splitting a window into thirds is great until the window is 70 columns wide and each pane gets 23. `responsive_min_cols` collapses the tab into the swap layout named by `responsive_layout` when it gets narrower than that, and restores the previously active layout when it grows back. Selects a swap layout BY NAME rather than adding a size-aware LayoutConstraint: that type crosses both the plugin protobuf API and the client/server contract, and the committed prost assets cannot be regenerated here (no protoc). Restoring uses a 10-column hysteresis band. Without a dead band, dragging a window edge that lands exactly on the threshold flips the layout on every motion event, and every flip resizes every PTY in the tab. "Did the user rearrange panes by hand" is judged from the damaged flag as sampled BEFORE each resize, not the live one: resize_whole_tab's own auto-layout pass sets that flag itself and clears it again only if it found a layout that fits, so on a terminal too narrow for any of them it latches true although nothing was rearranged. And once collapsed, restore stays reachable regardless of the flag, so damage occurring while collapsed cannot strand the tab in the narrow layout.
* sl0p: refresh snapshots for the compact scroll indicatoruser2026-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | aa51848d replaced "SCROLL: 42/1000" with a compact "^42" glyph and stopped showing any indicator when the pane is not actually scrolled up, but did not refresh the insta snapshots that encode the old upstream frame rendering. That left 30 failing tests in zellij-server from the very first sl0p commit onward, which in turn masked 5 more in zellij-utils (cargo stops at the first failing test binary, so zellij-utils never ran). Bisected to aa51848d; the upstream fork point 0e6e4404 is green. zellij-server (44 snapshots): frame titles lose the "SCROLL: 0/N" segment when not scrolled, and render "^N" where they previously rendered "SCROLL: N/M". Verified every diff is scroll-only, and that the genuinely-scrolled cases (2/13, 3/33, 6/33) still render as ^2, ^3 and ^6 rather than disappearing. zellij-utils (5 snapshots): serialized Config gained the sl0p FrameConfig fields (title_alignment, gap, padding, gap_aspect, inactive_grayscale, hide_default_pane_names), all at their existing defaults. Additions only. Several tests assert multiple snapshots and insta aborts at the first mismatch, so this took four regenerate/verify passes to fully converge. zellij-server: 1471 passed, 0 failed. zellij-utils: 441 passed, 0 failed.
* vendor(sl0ppij): import zellij v0.45.0 treeuser2026-08-12
Squashed import of upstream zellij at 0e6e4404 ("Support the Kitty Image Protocol (#5428)"), the merge-base our fork was developed against. Upstream's 3311 commits are deliberately NOT replayed here; only our own fork commits are, so the monorepo stays small and `git log sl0ppij/` shows sl0p work, not zellij's entire history. Upstream provenance is tracked in FORKS.md and can always be re-fetched from https://github.com/zellij-org/zellij.