URL:
<https://savannah.gnu.org/bugs/?59183>
Summary: Switching regions with the mouse fails with wide
regions
Project: GNU Screen
Submitted by: None
Submitted on: Sat 26 Sep 2020 09:12:19 AM UTC
Category: User Interface
Severity: 3 - Normal
Priority: 5 - Normal
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Release: 4.8.0
Discussion Lock: Any
Fixed Release: None
Planned Release: None
Work Required: None
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Details:
I'm trying to determine if this is a bug in screen, related to switching
regions with the mouse when using a wide monitor.
To reproduce:
screen
C-a | # vertical split
C-a TAB # change focus to new region
C-a c # new window
C-a : mousetrack on
I can now click with my mouse to move back and forth between the two regions,
each with its own window.
However, if I make my terminal emulator window sufficiently wide (either
before or after the above procedure),
I can no longer click on the right region/window to activate it.
I can make the two windows have a width of 222 and 223 cols, respectively (as
measured by "tput cols"),
by dragging the terminal emulator window to resize it. Soon after that, I can
no longer select the righthand region/window
with the mouse.
The most intriguing thing from googling was an old post/patch related to a
similar problem with a similar magic number, 223 = 255 - 32.
https://lists.gnu.org/archive/html/screen-devel/2012-07/msg00004.html
https://stackoverflow.com/questions/24700444/gnu-screen-mouse-limitation
I am using iTerm2 and this version of screen, from MacPorts:
$ screen --version
Screen version 4.08.00 (GNU) 05-Feb-20
$ echo $TERM
xterm-256color
Snippet from screen startup:
Capabilities:
+copy +remote-detach +power-detach +multi-attach +multi-user +font
+color-256 +utf8 +rxvt +builtin-telnet
I see the same behavior if I use a different terminal emulator (OS X
Terminal.app) and/or if I SSH to an Ubuntu 18.04.5 LTS machine and run screen
with version
$ screen --version
Screen version 4.06.02 (GNU) 23-Oct-17
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