izackp/webterm
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Simplify terminal resize - no more size toggling

Browse Source 
Remove all the -1 column toggle tricks for forcing tmux redraws.
Just set the size directly.
This commit is contained in:
GitHub Copilot
2026-01-24 16:53:53 +00:00
parent a771e1469e
commit 1a5222ab2a
2 changed files with 4 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/textual_webterm/terminal_session.py
+3 -26
View File
@@ -113,12 +113,11 @@ class TerminalSession(Session):
return (buf[1], buf[0]) # cols, rows
async def _sync_pyte_to_pty(self) -> None:
"""Sync pyte screen size to actual PTY size and trigger redraw."""
"""Sync pyte screen size to actual PTY size."""
if self.master_fd is None:
return
loop = asyncio.get_running_loop()
width, height = await loop.run_in_executor(None, self._get_terminal_size)
needs_redraw = False
async with self._screen_lock:
if self._screen.columns != width or self._screen.lines != height:
log.debug("Syncing pyte screen from %dx%d to %dx%d",
@@ -126,42 +125,20 @@ class TerminalSession(Session):
self._screen.resize(height, width)
self._last_width = width
self._last_height = height
needs_redraw = True
# Toggle PTY size outside lock to force tmux to redraw
if needs_redraw:
await loop.run_in_executor(
None, self._set_terminal_size, width - 1, height
)
await loop.run_in_executor(
None, self._set_terminal_size, width, height
)
# Brief delay to let redraw data arrive
await asyncio.sleep(0.1)
async def set_terminal_size(self, width: int, height: int) -> None:
"""Set terminal size and force a redraw."""
# Track the size for reconnection
"""Set terminal size."""
self._last_width = width
self._last_height = height
loop = asyncio.get_running_loop()
# Toggle size to force tmux to redraw, then set final size
await loop.run_in_executor(None, self._set_terminal_size, width - 1, height)
await loop.run_in_executor(None, self._set_terminal_size, width, height)
# Resize pyte screen to match
async with self._screen_lock:
self._screen.resize(height, width)
async def force_redraw(self) -> None:
"""Force a terminal redraw by toggling the size.
Briefly changes the terminal size then restores it, which forces
applications like tmux to fully redraw all panes.
"""
"""Force a terminal redraw by re-sending current size."""
loop = asyncio.get_running_loop()
# Briefly shrink by 1 column then restore - this forces a full redraw
await loop.run_in_executor(
None, self._set_terminal_size, self._last_width - 1, self._last_height
)
await loop.run_in_executor(
None, self._set_terminal_size, self._last_width, self._last_height
)