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* sl0p: clear the stale picker region when the layout re-flowsuser2026-08-11
| | | | | | | | | | | | | | | | | | | | | | | Adding a pane left old borders on screen until a resize forced a full redraw. Two causes. The picker draws each entry as its own chunk, so the space between and around the entries was never painted and kept the previous frame's contents; and adding a pane really does re-flow the whole grid, because a freshly created pane has no title yet and its "Pane #N" fallback is far wider than a named one, which widens every cell and drops the column count. Separately, refresh_or_dissolve_stack_list changed the reserved row count without forcing a clear, so when the list got shorter the visible pane moved up and the rows it vacated kept their old contents. Blanks only the spans no cell covers, never a cell's own columns: chunks are NOT composited last-wins, so blanking the whole region erased the entries instead of the stale contents under them -- the first attempt at this fix drew exactly one entry. stack_list_row_gaps is a free function so the covering invariant is testable: gaps and cells must tile each row exactly, with no overlap, across a sweep of row caps, label widths and member counts.
* sl0p: optionally render the stacked-pane picker as a griduser2026-08-11
| | | | | | | | | | | | | | | | | | | | | | | `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: click the picker's indicator row to expand a capped stackuser2026-08-11
| | | | | | | | | | | | | | | | | | | | | | The cap made the picker a scrolling viewport -- everything stays reachable by moving focus -- but there was no way to see the whole stack at once. Clicking "+N more" expands it to every member; the indicator becomes "- fewer" and collapses it again. Collapse gets its own label because an invisible way back out is not an affordance. Hangs off the indicator row because that row is already reserved, already rendered, and resolves to no member, so it is free real estate. It is also why this needs no new keybinding: mouse handling is entirely server-side, while Action is a protobuf enum we cannot extend without protoc. A click rather than hover, as expanding changes the reserved row count and so resizes the visible pane's PTY -- acceptable once per deliberate click, not on every mouse move. All three consumers of the row -> member mapping (renderer, reserved-row budget, mouse hit-test) now go through stack_list_window_for, so expansion cannot desync them the way the cap desynced the hit-test in 844617b4.
* sl0p: fix clicking a scrolled stack entry selecting the wrong paneuser2026-08-11
| | | | | | | | | | | | | | | | | | Regression from the picker row cap. The row -> member mapping lives in TWO places: the renderer, and the hit-test that resolves mouse events to a pane. Capping made the renderer draw a WINDOW of the members, so screen row 0 is members[window_start], but the hit-test still resolved row N to members[N]. Any click or hover on a capped stack whose window had scrolled therefore landed on the wrong pane -- with 8 members focused on the last, clicking the top row selected member 0 instead of member 5. Both sites now go through stack_list_window(). Clicks on the "+N more" indicator resolve to no member rather than to a bogus one. Caught by asking how a user reaches the panes past the cutoff, not by the tests: the previous commit tested the window arithmetic and the rendering, but nothing covered this second consumer of the same mapping.
* sl0p: cap how many rows the stacked-pane picker takesuser2026-08-11
| | | | | | | | | | | | | | | | | | | | | | | 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 panesuser2026-08-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: record the green test baseline in SPEED.mduser2026-08-11
| | | | | | | | | | The tree carried 30 failures in zellij-server and 5 in zellij-utils from the first sl0p commit until 5f2c28ab. They were never real bugs: aa51848d changed the scroll indicator and frame-title rendering without refreshing the insta snapshots. Documents the current green counts so a future context treats any failure as its own, plus the two traps that hid this for so long -- cargo stops at the first failing test binary, and insta aborts a test at its first snapshot mismatch -- and how to regenerate snapshots without cargo-insta.
* sl0p: keep stacked-layout entries identifiableuser2026-08-11
| | | | | | | | | | | | | | | | | | | Two problems made the stack list unusable for panes nothing had named yet, which is the common case right after opening them -- and the responsive collapse walks straight into it, since collapsing is exactly when the list becomes the only way to pick a pane. `hide_default_pane_names` no longer applies to stack list entries. In a frame an empty title is fine: the pane is still visible, sized and positioned, so you can tell what it is by looking at it. In the stack list the label is the ENTIRE affordance, so blanking it leaves rows that cannot be identified or told apart. Entries fall back to the "Pane #N" placeholder even when frames are configured to hide it. Entries are also prefixed with their 1-based position, so they stay countable and addressable even when several share a title or have none. The prefix is built by one shared helper because the renderer and Tab's column-width calculation must agree on its width or the list misaligns.
* sl0p: collapse to a swap layout when the terminal gets narrowuser2026-08-11
| | | | | | | | | | | | | | | | | | | | | | | | 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 indicatoruser2026-08-10
| | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* sl0p: first keystroke replaces the old tab name when renaminguser2026-08-09
| | | | | | | | | | | | | | | | | | | | | | | Entering RenameTab left the existing name in place and appended to it, so renaming a tab meant clearing it by hand first. The first printable keystroke now REPLACES it, the way a text field with its contents selected behaves. Armed when a client enters RenameTab and disarmed when it leaves, so a keystroke that arrives later cannot wipe a name the user was not editing. Backspace and delete deliberately do NOT replace: reaching for them means editing the existing name, not discarding it. The flag is taken out of the set BEFORE borrowing the active tab, since get_active_tab_mut borrows self mutably and every branch consumes the flag anyway. Applies to renames from any entry point - the keybind and the sl0pstatus double-click-a-tab both go through Screen::change_mode. Pane rename is deliberately left alone for now; say the word and it can get the same treatment. Baselines held: zellij-server 1441/30.
* sl0p: preview pane reordering live while dragginguser2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dragging showed only a green border on the target. The swap is now applied as you drag, so the real layout IS the preview and releasing just keeps it. Dragging elsewhere undoes it and previews the new arrangement; dragging off all panes restores the original. Because swap_panes is symmetric, applying it twice is the identity, so 'undo the preview' is just the same call again. Drop needs no work at all now - the swap already happened - which also removes the old drop-time swap. THE TRAP, which a naive version hits immediately: once the swap is applied the dragged pane sits under the cursor, so the next motion computes the dragged pane as its own target, undoes the swap, which puts the original pane back under the cursor, which re-applies it - oscillating on every motion event and spamming both PTYs with resizes. Avoided by treating two cases as 'the layout already shows what you would get' and doing nothing: - the cursor is over the dragged pane, wherever the preview has moved it; - the cursor is over the pane it is currently swapped with, which after a preview sits at the dragged pane's original position. So a swap is only re-applied when the cursor reaches a THIRD pane, which also keeps PTY resizes down to one pair per target change rather than per event. The dragged pane is kept highlighted rather than the target, so it stays identifiable while the layout moves around it. Note: the state machine lives in the executor and needs a real Tab, so it is reasoned through in the commit and README rather than unit-tested; the decision-level tests cover only which action is produced. Baselines held: zellij-server 1441/30.
* sl0p: highlight the drop target while dragging a paneuser2026-08-08
| | | | | | | | | | | | | | | | | | | | Dragging a pane by its title was blind until release. The pane a drop would land on is now highlighted with the theme's frame_highlight colour. Reuses the existing hover highlight rather than adding a second highlighting mechanism, but sets tab.mouse_hover_pane_id directly instead of going through execute_update_hover, which is gated on the mouse_hover_effects option. During a drag this is essential feedback rather than decoration, so it must not be switchable off. The pane being dragged is deliberately NOT highlighted when hovered: dropping onto itself is a no-op, so showing no highlight is the honest signal that releasing there changes nothing. The highlight is cleared on drop, so a completed drag does not leave a pane looking hovered. Baselines held: zellij-server 1441/30.
* sl0p: rearrange tiled panes by dragging their title baruser2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dragging a tiled pane by its title bar and dropping it on another pane swaps the two. Previously the only way to rearrange panes was MOVE mode. The underlying operation already existed: the directional move_pane_* functions are all the same geometry swap, differing only in how they pick the other pane. Extracted as TiledPanes::swap_panes(a, b) so a pane can be swapped with an arbitrary target - the one a drag was dropped onto - which also de-duplicates what was four copies of the same swap. Gesture: the title row EXCLUDING its corners. Corners stay resize handles, so two-axis resize from the top is preserved. Plain top-edge resize is gone and costs nothing: every boundary is shared, so the boundary above a pane is the bottom edge of the pane above and can be dragged from there. A pane at the top of the viewport has the screen edge above it, which was never resizable. Ordering in determine_mouse_action matters three ways: - an in-progress drag is checked FIRST, so motion cannot be reinterpreted as text selection or a resize; - the drag check sits AFTER the double-click check, so the second click of a rename is not swallowed; - and BEFORE the resize branch, which would otherwise claim the title row. Two behaviours had to be preserved deliberately: - Dropping a pane on itself is a no-op, which is what keeps a plain click and a double-click working on the title bar. - Starting a drag focuses the pane. Pressing a title used to start a resize, which focused it as a side effect; without this a plain click on the title would do nothing at all. Stacked panes are excluded from the handle. Their title row is the affordance for focusing/expanding a stack member, and intercepting it broke focus_stacked_pane_under_flexible_pane_with_the_mouse - caught by the suite, not by hand. Baselines held: zellij-server 1440/30 (the 30 are pre-existing).
* sl0p: optionally hide the 'Pane #N' placeholder titleuser2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | `ui { pane_frames { hide_default_pane_names true } }`, default false. A pane now shows no title at all until something actually names it: the user renaming it (including by double-clicking the title row) or the running program setting a title. Upstream always shows an auto-generated 'Pane #N'. Implemented by tracking whether pane_title is still the constructor's placeholder, NOT by matching the string: a program that legitimately titles itself 'Pane #3' must not be mistaken for an unnamed pane. set_title clears the flag, since something then chose that title. current_title reads the option at render time rather than baking an empty title in at construction, so it hot-reloads and turning the option back off restores the placeholder on existing panes. Display precedence is unchanged and now explicit in the code: user-given name > title set by the running program > placeholder render_terminal_title already fell back to an empty string rather than the placeholder, so the terminal WINDOW title is unaffected. Empty titles were already handled by the frame renderer (render_title_left_side returns None for an empty title), including the sl0p centred/right alignment path. Baselines held: zellij-server 1436/30, zellij-utils 436/5.
* sl0p: grayscale idle panes too (neovim stayed in colour)user2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | | Reported: grayscale worked for most panes but not one running neovim. Nothing to do with neovim specifically - it was the only pane sitting IDLE. refresh_for_focus_change called render_full_viewport(), which marks the grid's output BUFFER so the whole viewport is emitted rather than a diff. But Pane::render() early-returns unless grid.should_render is set, and render_full_viewport() does not set it. So an idle pane never re-rendered at all and kept its previous colours indefinitely. Shell panes hid the bug: they set should_render constantly on their own (prompt redraws, cursor), so they picked up the change almost immediately and looked correct. A pane parked in neovim with no output produced nothing, so it never repainted. Both calls are now made and the reason each is needed is documented at the call site, because 'mark the buffer' and 'schedule a render' being two separate flags is exactly the kind of thing that reads as redundant and gets 'cleaned up' later. Baselines held: zellij-server 1436/30.
* sl0p: grayscale the contents of unfocused panesuser2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `ui { pane_frames { inactive_grayscale 0-100 } }`, default 0 (off). Real colour transformation, not the SGR 'faint' attribute zellij already uses for frames: faint is terminal-dependent, several terminals only apply it to the 16 ANSI colours, and it does not remove colour. Each cell's colour is resolved to RGB and blended toward its own Rec.709 luminance, so an unfocused pane keeps its brightness but drains of colour. Colour resolution covers the cases that actually occur: RgbCode directly, ColorIndex via eightbit_to_rgb, and NamedColor by mapping to its 0-15 index. Cells with NO explicit colour are deliberately left alone - they render in the terminal default, which is already unsaturated, and rewriting them would mean emitting an explicit colour for nearly every cell for no visible gain. Two non-obvious pieces were needed to make it actually work: - The output buffer only emits CHANGED cells, so an idle pane would keep its old colours indefinitely after losing focus. Pane::refresh_for_focus_change forces a full repaint, called from ActivePanes::insert (the single place focus changes). It is a no-op when the feature is off, so it costs nothing by default. - Terminal panes render through the SHARED multi-client path. Focus is per client, so once unfocused panes are desaturated two clients may need different output for the same pane. Both tiled and floating panes now fall back to per-client rendering when grayscale is enabled - the reason this is opt-in. Known limitation: sixel/kitty image chunks are not colour-transformed and stay in colour. Hot-reloads like the other sl0p options. Tests cover the transform: full strength yields a true neutral grey, partial sits between original and grey, indexed and named colours resolve rather than being skipped, luminance is perceptual (green brighter than blue) not a flat average, already-grey is unchanged, and non-colour codes are untouched. Baselines held: zellij-server 1436/30, zellij-utils 436/5.
* chore: stop tracking transient bgrun job artifactsuser2026-08-08
| | | | | | | | | A `git add -A` swept in the per-job files bgrun writes beside SPEED.md, including a 37KB build log, none of which belong in the repo. SPEED.md stays tracked on purpose: the narrow test commands, measured timings and the pre-existing test-failure baselines are useful to anyone working on this fork, not just to an agent.
* sl0p: route mouse rename through the server, fixing stuck rename modeuser2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enter/Esc still did not leave rename mode after entering it by double-click. The previous attempt fixed a real trap (a None base_mode makes change_to_default_mode a silent no-op) but not this one. The actual cause: zellij tracks the client's input mode in TWO places. - Screen's ModeInfo, which drives what is rendered. - SessionData::current_input_modes on the server, which is what ROUTES key input to the right handler. The double-click path sent ScreenInstruction::ChangeMode directly, so only the first was updated: the rename prompt appeared and accepted text, while the server still interpreted keys in the previous mode - so Enter and Esc were never treated as rename-mode keys and there was no way out. Action::SwitchToMode (the rename keybind) sends ServerInstruction::ChangeMode instead, and the server handler updates current_input_modes AND derives base_mode from the session config before forwarding to Screen. The mouse path now sends exactly that, so it is the same code path as the keybind rather than an imitation of it. Tab::client_base_mode is dropped: the server supplies base_mode correctly, so it is no longer needed. Lesson worth keeping: 'send the instruction the existing feature sends' beats reconstructing its effects downstream. Both bugs here came from entering the system one layer too low. Baselines held: zellij-server 1429/30.
* sl0p: fix getting stuck in rename mode (base_mode wiped)user2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Double-click-to-rename trapped the client: once in RenamePane, Esc and Enter did nothing and there was no way out without killing the session. Cause: Screen::change_mode() does `mode_info.base_mode = base_mode`, i.e. it OVERWRITES the client's base mode with whatever it is handed. The double-click path passed None, believing that meant 'leave it alone'. It does not - ModeInfo::change_to_default_mode() is: if let Some(base_mode) = self.base_mode { self.mode = base_mode; } so a None base_mode makes leaving ANY temporary mode a silent no-op. The legitimate caller in lib.rs passes Some(base_mode) from the session config; this path had no equivalent. Fix: Tab::client_base_mode() reads the client's existing base_mode (falling back to the tab default) and the rename path passes it through, so entering rename via the mouse leaves the return path exactly as the keybind does. Added a test on ModeInfo pinning the trap itself: change_to_default_mode is a no-op with base_mode None, and returns to the base mode when it is set. That is the property that makes passing None dangerous, and it now fails loudly if anyone assumes otherwise. Immediate escape hatch for a session stuck on an older build: zellij action switch-mode locked (that goes through the server path, which sets base_mode correctly) Baselines held: zellij-server 1429/30, zellij-utils 436/5.
* sl0p: don't let hover steal focus while typing into a rename promptuser2026-08-08
| | | | | | | | | | | | | | | | | | Reported after double-click-to-rename landed: rename one pane, then hovering over other panes puts them in 'edit title' state too. Cause is focus_follows_mouse, not the rename itself. RenamePane is a CLIENT mode that acts on whatever pane is ACTIVE, so with focus-follows-mouse enabled every pane the mouse passes over becomes active and inherits the prompt. The double-click entry point just made it easy to hit, since you finish the gesture with the mouse sitting on a pane frame. Focus-follows-mouse is now suppressed for a client that is in a modal text-entry mode: RenamePane, RenameTab, EnterSearch or Prompt. Those all act on the active pane/tab, so moving focus underneath them is never what the user meant. Keyboard focus movement is untouched. Baselines held: zellij-server 1429/30.
* sl0p: fix double-click-to-rename, which never fireduser2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Two independent bugs, either of which alone made the feature dead code. 1. WRONG EDGE. The check was `details.edge == Some(PaneEdge::Top)`, but get_edge_at_position() quadrant-splits a pane and only ever returns the four CORNER variants - PaneEdge::Top exists in the enum and is never produced. A title-row click reports as TopLeft/TopRight, so the condition was never true. Replaced with Pane::position_is_on_title_row(), which tests the geometry directly the same way position_is_on_frame() does for the top border. 2. RESET ON RELEASE. Click recording reset the tracker on any event that was not a frame press - which includes the RELEASE between the two clicks of a double-click. The sequence is press/release/press, so the count went 1 -> reset -> 1 and never reached 2. The tests passed anyway because they hand-built a MouseEventContext with edge: Some(PaneEdge::Top) and called the decision function directly. They asserted my assumption rather than the behaviour, and exercised neither the edge lookup nor the click sequence. Click recording is now a small pure helper (record_frame_click) covered by tests that replay real event sequences: press/release/press is a double-click, motion in between does not break it, a press off the frame does break it, and two clicks at different positions are not a double-click. The decision tests now use the corner edge value that is actually produced. Baselines held: zellij-server 1428/30 (7 new tests).
* sl0p: double-click a pane title to rename ituser2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Double-clicking the top edge of a pane's frame focuses that pane and switches the client into RenamePane mode. Everything needed already existed; this is wiring, not new machinery: - grid.rs already tracks repeated clicks (Click, 400ms threshold). It is now pub and reused rather than inventing a second notion of 'double click' that could drift from the one used for text selection. A frame click never reaches the grid, so Tab tracks frame clicks per client separately. - pane.position_is_on_frame() / get_edge_at_position() already give the hit edge, and mouse_handler already computes both. - Screen::change_mode() already calls store_pane_name() when entering RenamePane, so issuing ChangeMode(RenamePane) does the whole setup exactly as the keybind path does. No rename logic is duplicated. Placement in determine_mouse_action matters twice: - AFTER the floating 'start moving' branch, so floating panes keep dragging by their title (that is their move handle). Tiled panes only for now. - BEFORE the resize branch, which would otherwise consume the click as a top-edge resize drag. Only PaneEdge::Top renames; corners stay resize handles. The pane is focused first because RenamePane acts on the ACTIVE pane, so renaming an unfocused pane would otherwise rename the wrong one. Tests cover all three: double-click on Top renames, single click on Top still resizes, and double-click on any other edge or corner does not rename. Baselines held: zellij-server 1424/30 (3 new tests), zellij-utils 435/5.
* sl0p: ignore gap/padding when a pane draws no frameuser2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | | Closes the frameless-mode hole documented in the README. In frameless mode (pane_frame_style "titles" or "none") the cells around a pane's content are owned by the inter-pane boundary renderer, not the pane. The ghost-fix commit correctly stopped panes from BLANKING that region - blanking it erased the boundaries and broke three tests - but nothing stopped them from CREATING it: padding still inset the content, so the vacated cells had no owner and kept whatever was drawn there before. Half the job done in each direction produced exactly the ghosting the blanking was meant to prevent, just in a mode we do not use by default. Fix: a pane that is not drawing a frame is not inset at all - no gap, no padding, no moat, nothing unowned. Pane::set_frame() already received the right boolean from both the tiled and floating containers and was throwing it away; it now records it. Config values are preserved, they simply take effect only with full frames. README updated to describe this as a defined limit rather than a known bug. Baselines held: zellij-server 1421/30, zellij-utils 435/5.
* sl0p: tag fork builds as 0.45.0+sl0p1user2026-08-08
| | | | | | | | | | | | | | | | | | | | | `zellij --version` was identical to upstream, so there was no way to tell a fork binary from a stock one. Uses BUILD METADATA (+sl0p1) rather than a prerelease (-sl0p1): cargo ignores build metadata when matching version requirements, so the intra-workspace `zellij-utils = "0.45.0"` dependencies still resolve. The prerelease form was tried first and fails to resolve - it would require updating every member manifest to depend on the exact prerelease. Checked against the places VERSION is actually consumed: - shared::version_number() yields 4500 for both 0.45.0 and 0.45.0+sl0p1, so terminal version reporting is byte-identical, and still orders below 0.46.0. - client/server compatibility keys off CLIENT_SERVER_CONTRACT_VERSION, not this, so existing sessions are unaffected. - ZELLIJ_PLUGIN_ARTIFACT_DIR is keyed by VERSION, so the bundled wasm plugins are recompiled once on first run after a bump. One-time, harmless. Baselines held: zellij-server 1421/30, zellij-utils 435/5.
* docs: prepend sl0ppij fork header to READMEuser2026-08-08
| | | | | | | | | | | | | | | | | | | | Anyone cloning this repo got stock Zellij's README and no indication the binary behaves differently, with the new options discoverable only from commit messages. Documents the four config options, which changes apply live vs need a new session, the fastdev build profile, and the known rough edges. Two corrections while writing it: - The frameless-mode caveat is stated honestly. `padding` DOES still inset content when pane frames are off, but the vacated cells are not repainted because ui/boundaries.rs owns that region, so stale glyphs are expected on resize. That is a real limitation, not the deliberate design the first draft claimed. gap/padding are documented as full-frame only for now. - Deduplicated the borderless-pane comment in both panes, which scripted patching had left repeated three times.
* sl0p: CSS-style 1/2/4-value shorthand for inner paddinguser2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | `padding` now accepts: padding 1 -> all four sides padding 1 2 -> up/down = 1, left/right = 2 padding 1 2 3 4 -> up=1 down=2 left=3 right=4 NOTE the 4-value order is UP DOWN LEFT RIGHT as requested, deliberately NOT CSS's clockwise top-right-bottom-left. Documented on PanePadding and at the parser, since the similarity to CSS invites the wrong assumption. 3 or 5 values are rejected with a message naming the accepted forms, rather than being silently reinterpreted. Negative values clamp to 0. ASPECT: only the 1-value form is aspect-corrected (left/right multiplied by gap_aspect) so `padding 1` looks square on a non-square cell grid. The 2- and 4-value forms are literal: specifying axes separately means the caller is already controlling horizontal size, and silently doubling it would surprise. Style now carries a PanePadding {top,bottom,left,right} instead of an x/y pair, which also collapses the reconfigure plumbing back to a single field rather than growing another parameter per side. to_kdl always emits the explicit 4-value form: emitting the 1-value form would re-apply gap_aspect on the next read and silently double the padding on every config round-trip. Baselines held: zellij-utils 435/5, zellij-server 1421/30.
* sl0p: uniform pane gap + aspect-corrected horizontal gapuser2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Two changes to how the gap is defined. 1. UNIFORM GAP. Previously every pane inset every side by `gap`, so two neighbours each gave up a cell and the space between them was 2*gap while the screen edge got only gap. Now a pane insets RIGHT and BOTTOM always, and LEFT/TOP only where that edge is the viewport boundary. Two neighbours contribute exactly one gap between them, and the outer screen edges get the same gap. `gap 1` now means 1 everywhere. The per-side offset is computed in tiled_panes, which is the layer that knows the viewport, and pushed to panes via Pane::set_gap_offset before the content-offset sweep. Floating panes keep a zero gap: they are positioned explicitly by the user, so an inter-pane gap does not apply to them (they still get padding). 2. ASPECT CORRECTION. Terminal cells are roughly twice as tall as they are wide, so an equal number of rows and columns does not look like an equal distance. `gap` and `padding` are now expressed in ROWS, and columns are multiplied by `gap_aspect` (default 2, minimum 1). Style carries the resolved pane_gap_x/y and pane_padding_x/y. FrameConfig::Default is now hand-written rather than derived: gap_aspect must default to 2 to match the KDL parser, otherwise a parsed config disagrees with a default-constructed one and it surfaces as config round-trip diffs (this broke can_define_ui_configuration_in_configfile and both bare_config_from_default_assets_to_string tests). Tests assert the actual invariants: stacked and side-by-side neighbours get exactly one gap between them, screen edges get the same gap as between panes, and inset_by refuses to collapse a pane too small to survive it. Baselines held: zellij-server 1421/30, zellij-utils 433/5.
* sl0p: add fastdev build profile + SPEED.md (60x faster iteration)user2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | Building this fork for local use took ~3 minutes per one-line change: [profile.release] sets lto = true and codegen-units = 1, so every rebuild redid whole-program optimization on a single core. That is right for a shipped artifact and pure waste for a binary we just want to look at in a terminal - zellij is bound on a human, not on codegen. [profile.fastdev] inherits release, keeps opt-level 3, drops LTO, uses 16 codegen units and keeps the incremental cache: cargo build --profile fastdev -p zellij ~2.8s incremental (was ~3min) [profile.release] is deliberately untouched, so shipping/benchmarking builds are unchanged. .fastfeedback/SPEED.md records the narrow commands, measured timings, the deploy loop, and - importantly - the PRE-EXISTING test failure baselines (30 in zellij-server, 5 in zellij-utils) so a future session does not waste time chasing failures it did not cause. Rejected: the gold linker (rustc warns it is deprecated with known Rust bugs) and clang+lld (no lld binary installed). Dropping LTO removed the dominant cost anyway.
* sl0p: blank the padding ring too, fixing remaining resize ghostinguser2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The previous ghosting fix only covered ONE of the two regions the insets carve out. With `padding N` there is a second unowned region: the cells between the frame border and the content rect. Nothing wrote them, so when a pane grew, cells that had previously held another pane's border or title kept those glyphs - the reported 'old pane title/border repeated in the gap space'. Both rings are now blanked at every frame-render site: 1. allocation \ drawn frame (outer gap) 2. frame inner \ content rect (inner padding) Frameless mode is explicitly excluded from ring 2. With pane frames off the cells around the content belong to ui/boundaries.rs, which draws the inter-pane boundaries there, and content_offset deliberately leaves room for them. Blanking that region erased the boundaries and broke three tests (render_stacks_without_pane_frames, swap_tiled_layout_with_stacked_children_and_no_pane_frames, send_cli_toggle_pane_frames_action). Collapsing the interior onto the content rect emits no ring at all in that mode. gap_ring_chunks is now robust to any rect relationship: spans are clamped to `outer`, so a mis-clamped caller cannot make it write outside the pane's own allocation. Tested with inner rects that cover, miss, straddle and degenerate against outer. Suite back to baseline: 1421 passed / 30 pre-existing failures.
* sl0p: fix ghosting/artifacts when resizing panes with a gapuser2026-08-08
| | | | | | | | | | | | | | | | | | | | | | With a gap configured, PaneFrame::render() emits CharacterChunks only for the INSET frame. The gap ring - the cells between a pane's allocated geometry and the smaller frame drawn inside it - was written by nobody. On a fresh paint that looks correct, but only because the screen had just been cleared. As soon as panes are moved or resized, whatever was previously drawn in those cells survives, which is the ghosting/artifacts seen while dragging pane borders. gap_ring_chunks() emits explicit blanks for that ring, restoring the renderer's existing invariant that every cell of a pane's allocation is written by exactly one pane on every render. It is appended at all four frame-render sites (tiled + plugin panes, cached and uncached paths), and is a no-op when gap is 0 so the default path is untouched. Tests assert the ring never overlaps itself, never escapes the allocation, never overdraws the frame, has exactly (outer area - inner area) cells, and that ring + frame together tile the allocation with no holes - a hole being exactly what produces the artifacts.
* sl0p: hot-reload title alignment, gap and padding on config changeuser2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | The three sl0p frame options were read once at session start: zellij's ScreenInstruction::Reconfigure carries an explicit, hand-maintained field list (pane_frame_style, rounded_corners, hide_session_name, ...) and ours were not in it, so editing config.kdl did nothing until a new session. Wires them through the existing reconfigure path: lib.rs -> ScreenInstruction::Reconfigure -> Screen::reconfigure -> Tab::update_frame_layout -> {tiled,floating}_panes fanout -> Pane::update_frame_layout Two ordering/coverage details that are easy to get wrong: - Tab::update_frame_layout must run BEFORE set_pane_frames. gap/padding are baked into content_offset when it is set, not read live at render time, so the values must be in place before the sweep that recomputes offsets. - FloatingPanes::set_pane_frame_style only re-runs that sweep when a floating pane is fullscreen, so ordinary floating panes would have kept their old inset until the next resize. The floating fanout now recomputes explicitly. Title alignment needs no recompute (it is read at render time) but rides the same path for consistency; panes clear their frame cache so it repaints.
* sl0p: fix status bar vanishing when pane gap is setuser2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | | REGRESSION from 30782cbb: with `gap 1` the zjstatus footer disappeared. A status bar is a size=1 borderless pane. set_content_offset expanded it by the gap on every side, giving top = bottom = 1 and therefore rows - (top + bottom) = 0 content rows, so it rendered nothing at all. The same applied to the tab bar and any other chrome pane sized exactly to its content. Two independent fixes, because either alone would leave a sharp edge: 1. Callers skip the inset for `borderless` panes. Chrome is sized exactly to its content and is not part of the tiled pane grid the gap is meant to separate, so it should never be inset. 2. Offset::expanded_by_within() refuses any expansion that would leave a pane with less than one row or column of content, and returns the original offset instead. Panes can be resized down to almost nothing at runtime, so the geometry must not depend on callers being careful. Tests encode the exact regression (a 1-row pane must keep >= 1 content row) plus an exhaustive sweep over pane sizes 1..12 x gaps 0..4 asserting that expansion never reduces content below what the incoming offset already allowed.
* sl0p: configurable pane gap (outer) and padding (inner)user2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds `ui { pane_frames { gap N; padding N } }`, both defaulting to 0 so stock configs are unaffected. gap - cells each pane gives up on every side, leaving real empty terminal between neighbouring panes (WM-style outer gaps). Two adjacent panes therefore show 2*gap between them. padding - cells between a pane's frame and its content; breathing room inside the pane without moving the frame. Design: the pane KEEPS its allocated PaneGeom. Only two things move: 1. the drawn frame, via Viewport::inset(gap), reusing the existing frame_geom_override mechanism already used for stacked panes; 2. the content, via Offset::expanded_by(gap + padding) inside set_content_offset. Because the allocation is untouched, the kasuari resize solver and mouse hit-testing need no changes at all, and a click landing in a gap still resolves to the owning pane. Content position, size and cursor are all derived from content_offset, so widening it in one place keeps every consumer consistent. Viewport::inset refuses to shrink a pane below a frame's minimum viable extent (two borders + one content cell) rather than emitting a degenerate or zero-sized frame. Negative KDL values clamp to 0 instead of wrapping. Tests cover: inset identity/shrink/recentre, the containment invariant (an inset frame never escapes its allocation), small-pane refusal, and the key safety property that content inset by gap+border+padding lands strictly inside the frame drawn at inset(gap).
* sl0p: configurable pane title alignmentuser2026-08-08
| | | | | | | | | | | | | | | | | | | | | | | Adds `ui { pane_frames { title_alignment "left"|"center"|"right" } }`. Full-frame panes previously hardcoded the title flush left, while frameless panes (pane_frame_style "titles") already centered it via compose_bracketed_title. This brings full frames up to parity and makes the position configurable. Implementation notes: - The value rides on `Style`, which is already threaded to FrameParams, so no new plumbing through Tab/PaneContentsAndUi was needed. - It is deliberately NOT round-tripped over the plugin protobuf boundary: plugins have no use for frame title alignment and adding a proto field would force regenerating the committed prost assets in assets/prost/. - Left keeps the original code path untouched, so default configs render exactly as before. - The geometry loop clamps the title start against the right-side indicators and breaks on `>=` rather than `==`, so a mis-clamped segment cannot spin. Tests: alignment ordering, frame width preservation across widths, and narrow-pane safety (cols 1..24 must not panic or corrupt width).
* sl0p: rebuilt default plugin wasm assetsuser2026-08-08
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* sl0p: compact scroll indicator + sl0p.foo tab-bar brandinguser2026-08-08
| | | | | | | | | - pane_boundaries_frame: replace 'SCROLL: 42/1000' with a single-glyph indicator ('up-arrow'42), and only show it when actually scrolled up rather than whenever scrollback exists. - tab-bar: rebrand the prefix to sl0p.foo. Pre-existing local work, committed as the base of the sl0p fork.
* Support the Kitty Image Protocol (#5428)Aram Drevekenin2026-07-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * initial implementation - kinda working * tests and fixes * fix bounds * tests and compatibility fixes * fix: cursor scroll, clears, deletes, key tolerance, and host id range * fix: keep images alive across resize, relayout and history scroll * anchor to lines, not pixels * fix image/text alignments * config to allow disabling * fix pinned pane issue * never let host graphics replies reach the keyboard parser * fix nested session * properly handle fullscreening a pane * rustfmt * cleanup of ignored test * add pr
* fix(build): remove manpage, honor CARGO_TARGET_DIR, add cargo argument ↵Aram Drevekenin2026-07-30
| | | | | | | passthrough, remove clippy (#5426) * fix(build): remove manpage, honor CARGO_TARGET_DIR, add cargo argument passthrough, remove clippy * add pr
* Even more debian upgrades (#5424)Aram Drevekenin2026-07-30
| | | | | * Upgrade axum-extra 0.12, axum-server 0.8, rcgen 0.14 * rustfmt
* More dependency upgrades for debian (#5421)Aram Drevekenin2026-07-29
| | | | | | | | | | | * upgrade insta, rand, sha2, strum, thiserror, tokio-tungstenite, toml, which; drop unused semver and typetag * upgrade sysinfo to 0.39.5, bump toolchain (msrv) to 1.95.0 * remote legacy yaml config converter and thus drop serde_yaml * upgrade unicode-width to 0.2.2 * fix(tests): run ipc roundtrip test on a larger stack
* Dep upgrades for debian (#5420)Aram Drevekenin2026-07-28
| | | | | | | | | | | | | * chore(deps): upgrade base64 0.22, colored 3.1, crossterm 0.29, dialoguer 0.11, directories 6.0, highway 1.2, prost 0.12.6, strip-ansi-escapes 0.2.1, suggest 0.5.1 * chore(deps): upgrade miette 7.6, nix 0.30, notify 8.2, notify-debouncer-full 0.5 * vte 0.15 * clap 4.6 * workspaceify plugin deps * don't send empty fs watch events
* Nested session handling (#5417)Aram Drevekenin2026-07-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * fix: theme query and updated pixel dimensions * add no-ui-fullscreen key/action/capability * protocol core * integration test harness * fix integration tests * fix flaky tests * nested ui (dimming) and directional focus initial implementation * integration tests for nested ui dimming and directional focus * initial full screen nesteed implementation * fix: keep hidden floating panes hidden across nested no-ui fullscreen * fix integration tests * no ui fullscreen integration tests * hardening behavior/tests * fix(nested): re-derive descend/dim on host tab switch and new-tab so clicking dimmed chrome ascends * initial modal implementation * initial ui improvements * fix integration tests * improve nested selection ui * nested session modal refactoring and tests * improve integration test speed somewhat * some ui adjustments * simplify full/auto nested session handling * hints in compact-bar * guest stdin leak fix * allow floating panes to be fullscreen * make nested session handling configurable * protocol reannounce * refactor: naming confusion * improve ux somewhat * rustfmt * merge fixes * improve integration test rate limiting (fix ci) * add pr
* Switch from the unmaintained daemonize crate to a maintained fork (#4512)Fabio Valentini2026-07-27
| | | | | | | | | | | * Switch from the unmaintained daemonize crate to a maintained fork c.f. https://rustsec.org/advisories/RUSTSEC-2025-0069.html * add pr --------- Co-authored-by: Aram Drevekenin <aram@poor.dev>
* chore: replace unmaintained cassowary with maintained fork kasuari (#5416)Aram Drevekenin2026-07-27
| | | | | * chore: replace unmaintained cassowary with maintained fork kasuari * add pr
* fix(windows): prefer PATHEXT variants over bare filename in resolver (#5364)divens2026-07-21
| | | | | | | | | | | | | `find_executable` used to short-circuit on the first exists()-and-is_file match and only consult PATHEXT if no bare file was present. That returned the wrong file for tools whose Windows installer ships both a Unix-style launcher and a `.bat` alongside it. The reported case is Composer, whose setup places bare `composer` (a Unix launcher, invalid PE on Windows) next to `composer.bat`. The bare file was resolved and handed to CreateProcessW, which rejected it with ERROR_BAD_EXE_FORMAT. On Windows, when the candidate has no user-supplied extension, walk PATHEXT first and only fall back to the bare match if nothing matches. This mirrors cmd.exe's and powershell's resolution.
* Stacked resize list fixes (#5379)Aram Drevekenin2026-07-18
| | | | | | | * fix: mouse scroll resize stack issue * regression test * cleanups
* docs(changelog): stdin parse fixAram Drevekenin2026-07-17
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* fix: input spam when moving mouse while typing by splitting the input bytes ↵Pierre Kisters2026-07-17
| | | | into their respective events (#5323)
* docs(changelog): pane rename clear fixAram Drevekenin2026-07-17
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