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feat: add a searchable buffer picker

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Valdemar Lorenzen
2026-10-13 13:53:59 +02:00
parent bfdb7c544f
commit f5ba61624f
8 changed files with 239 additions and 62 deletions
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docs/editing.md
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@@ -10,7 +10,7 @@ Default controls and editing behavior. For custom bindings, see [configuration](
| --- | --- |
| All modes | Ctrl+p opens the command palette; type to filter, Ctrl+j/k or arrows select, Enter accepts, Esc/Ctrl+p cancels |
| Normal, Visual | Space Space opens the palette through the default leader |
| Normal | Space w saves; Space b n/p/l/d switches next/previous, lists, or closes buffers |
| Normal | Space w saves; Space b n/p/l/d switches next/previous, opens the buffer picker, or closes buffers |
| Normal, Visual | Space o opens the floating tree in INSERT/filter mode; Space e opens/focuses the docked compact tree |
| Normal | `i` insert before each caret; `a` insert after each caret; `o`/`O` open lines below/above |
| Normal, Visual | `I` (Shift+i) / `A` (Shift+a) insert at first nonblank / line end; Visual splits each touched row into a caret first |
@@ -278,7 +278,7 @@ Each buffer retains its shared text, path, saved state, and undo/redo history. V
| Command | Behavior |
| --- | --- |
| `:edit PATH` | Switch to an already-loaded file, or read and validate a new buffer; a nonexistent file opens empty |
| `:buffers` | List stable IDs and paths; `%` marks active, `+` marks dirty |
| `:buffers` | Open the searchable buffer picker; stable IDs and paths, `%` active, `+` dirty |
| `:buffer N` | Switch to buffer ID `N` |
| `:buffer_next` / `:buffer_previous` | Switch in ascending-ID order, wrapping at either end |
| `:buffer_delete [N]` | Close the active or named buffer; refuse unsaved changes |
@@ -288,6 +288,10 @@ IDs start at 1 and are never renumbered or reused. Closing the last buffer creat
Switching from Insert commits its pending undo group and parks that view in Normal. Explicit buffer switching from Visual retains the pane's directed ranges and Visual mode for that buffer; switching back restores them. Command/search prompts, palette queries, and pending motion counts are transient, not restored per buffer. Buffer commands appear in the command palette and can be bound by their typed core actions in Normal mode. When several buffers are open, status shows the active ID and total count.
**Space b l**, `:buffers`, or the **Buffers** command-palette action opens the picker. Type to filter IDs and paths with case-insensitive, whitespace-separated substring tokens; every token must match. Results retain ascending ID order. Ctrl+j/Ctrl+n/Down and Ctrl+k/Up select with wraparound, using the shared Selection bindings and overrides. Backspace edits the query; Ctrl+u clears it. Enter switches only the focused pane to the selected buffer without saving or discarding edits; no matches leave the picker open. Esc or Ctrl+p cancels without switching. Printable keys, including `:` and leader keys, belong to the query.
The picker includes ordinary buffers from every tab and unnamed buffers as `[No Name]`; immutable diff snapshots are excluded. Labels sanitize path control characters, but selection uses stable buffer IDs, so displayed-name collisions still select the correct buffer. Switching out of a diff follows ordinary `:buffer N` behavior.
## File picker and explorer
Space o opens a floating **Tree** explorer directly in **INSERT/filter** mode, ready for typing; Space e opens or focuses the docked **Tree**, starting in **NORMAL/navigation** mode when new. Both use one catalog and instance. Invoking the other action applies that presentation's configured default while retaining query, selection identities, and surviving folder expansion. Floating Tree invocation enters filtering if not already filtering. These actions are available as `config.core.file_picker` and `config.core.file_explorer` in Normal/Visual and in the command palette.