A session Run makes while the grid is open joins as a tile right away, so
the tile connects and sends its size before Run starts the pane. The
server only records a resize for a session with no PTY and spawns the pane
at 120x40, and Run's own resize step measures the parked main terminal
(display: none, so nothing). Measured live for Shell and Claude: a 97x17
tile over a 120x40 pane, for good (#464).
The chrome refresh now remembers each tile's last-seen pid and calls
TerminalTile.paneStarted() when it appears or changes. paneStarted()
forgets the sent size and sends it; a hidden tile (a zoomed neighbour)
sends nothing and keeps it forgotten, so its next fit() sends it, which a
plain fit({ force: true }) would lose. Keyed on the sessions map, so a
handleInit after an SSE drop counts too.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Every Run path makes each session it created visible through
_ensureCreatedSessionVisible and then selects the first one, a human
selection that used to leave the grid for the single view. That helper now
hands the new session to _joinTileGridFromRun: with the grid open it joins the
next free slot, so Run's selection focuses its tile. No Attach overlay flashes
on it while Run starts its pane. Sessions created elsewhere (agents, other
devices, cron) arrive only by session:created and never join; a grid already
holding what the window fits does not take it, and a hint says the new
session opens on its own.
A tile's + adds "New session in this case": the normal Run (current run mode)
for the case the tile's session belongs to, with the toolbar's case put back
afterwards; the session it creates joins the grid like any Run from this tab.
Disabled for a session outside every case.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>