From: Simon Tatham <anakin@pobox.com>
Date: Wed, 6 Dec 2023 06:52:06 +0000 (+0000)
Subject: Do SIGWINCH handling ourselves.
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ian/git?a=commitdiff_plain;h=8df883c88bddcecdf990bfa4fa75628ec7738b27;p=mastodonochrome.git

Do SIGWINCH handling ourselves.

It broke as a side effect of going into nodelay mode, I think because
our select loop didn't know to check curses's flag.
---

diff --git a/cursesclient.py b/cursesclient.py
index abf383b..564a7a0 100644
--- a/cursesclient.py
+++ b/cursesclient.py
@@ -1,6 +1,8 @@
 import curses
 import itertools
+import os
 import select
+import signal
 import sys
 import threading
 
@@ -112,7 +114,7 @@ class CursesUI(client.Client):
         else:
             return None
 
-    def add_selfpipe(self, url, handler):
+    def add_streaming_selfpipe(self, url, handler):
         sp = util.SelfPipe()
         gen = self.get_streaming_lines(url)
         def threadfn():
@@ -124,9 +126,22 @@ class CursesUI(client.Client):
         th.start()
         self.selfpipes.append((sp, handler, th))
 
+    def add_sigwinch_selfpipe(self):
+        sp = util.SelfPipe()
+        signal.signal(signal.SIGWINCH, lambda *args: sp.signal())
+        def handler():
+            size = os.get_terminal_size()
+            curses.resizeterm(size.lines, size.columns)
+            # This is the same way standard curses will do it, which
+            # is as good a way as any to signal to the main loop that
+            # we need to do something
+            curses.ungetch(curses.KEY_RESIZE)
+        self.selfpipes.append((sp, handler, None))
+
     def run(self):
         home_feed = self.home_timeline_feed()
-        self.add_selfpipe("streaming/user", home_feed.extend_future)
+        self.add_streaming_selfpipe("streaming/user", home_feed.extend_future)
+        self.add_sigwinch_selfpipe()
         self.home_timeline = StatusFile(
             self, home_feed,
             text.ColouredString("Home timeline   <H>",