One absolutely-addressed line per row, each closed with an erase-to-end, so
nothing scrolls and a repaint cannot leave the previous frame's tail behind.
The caller wraps the result in synchronized-output brackets; that is an IO
decision and stays out of the renderer.
Color is passed in rather than detected. chalk's detection is right for the
one-shot CLI but would make a frame non-deterministic, so the palette is raw
SGR in the same semantic roles cli-style uses, and `color: false` emits nothing
but the cursor addressing, the session's own colors in the preview included.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Below 72 columns the preview pane is dropped and rows take two lines, the
constraint the `sc` chooser was built around and the reason it is still usable
on a phone; above it a clamped sidebar carries the list and the preview takes
the rest.
Every region is clamped to a non-negative size, so a 5x5 terminal degrades to a
header instead of handing the renderer negative widths.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Rows are the ones GET /api/sessions/unified already returns and blocked states
are the items the approvals inbox already parsed, both imported as types only
so a CLI process pulls in neither the server nor node-pty. Classification
speaks the web UI's language (red blocked, yellow waiting, green working) so a
user with both surfaces open never has to translate between them.
Groups order by how long a session has been in its state, which is why WORKING
anchors on the pane's last Enter: a working pane repaints about once a second,
so its last-activity stamp always says "now".
Selection is tracked by session id, never by row index: rows re-sort under the
cursor whenever a session starts working or an approval lands, and an
index-tracked cursor would quietly move the selection to another session
between two keystrokes.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Decodes printable UTF-8, the control keys, arrows in both CSI and SS3 forms and
SGR mouse reports out of a byte stream that can tear anywhere, so a sequence
split across two reads decodes the same as one that arrives whole.
A lone ESC cannot be told from the start of an arrow key by looking at bytes,
so the parser holds it and the caller resolves it with flush() once its
disambiguation timer fires. Unknown sequences are swallowed: a stray CSI must
never reach a prompt composer as typed text.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The preview pane shows a session's raw terminal stream, so it needs the tail
reconstructed rather than emulated: SGR survives, cursor steering and OSC do
not, and a carriage return returns to column 0 so a spinner that repaints its
line 200 times contributes one line instead of 200.
Widths count East Asian Wide characters as two columns, which the clip and pad
helpers rely on to never cut a wide character, a code point or an escape
sequence in half.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Codeman maintainer