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Subject: bug#79830: Context menu keys on tty
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--=-=-=
Content-Type: text/plain

Since on many terminal emulators S-f10 is not available,
here is a patch that binds it to C-f10 only on tty and context-menu-mode.

PS: not sure if it would be ok if Emacs started as daemon
will bind 'C-f10' to the context menu, then emacsclient will
still retain 'C-f10' on a graphical frame.  If this is a problem,
then we could define the binding conditionally using :filter.


--=-=-=
Content-Type: text/x-diff
Content-Disposition: inline; filename=context-menu-mode-C-f10.patch

diff --git a/etc/NEWS b/etc/NEWS
index 35c536d6ee8..e645c7c2e72 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -297,6 +297,10 @@ to extend the boundaries of the active region by dragging the mouse pointer.
 The menu item enables sending current file(s) or region text to external
 (non-Emacs) applications or services.  See send-to.el for customisations.
 
+---
+*** In 'context-menu-mode' 'C-f10' pops up the context menu on tty.
+This is because 'S-f10' is often intercepted by the terminal emulator.
+
 ---
 *** The mouse now drags lines in character increments again.
 Dragging a horizontal or vertical line like the mode line or the lines
diff --git a/lisp/mouse.el b/lisp/mouse.el
index f75800763e6..5c28f6f05f9 100644
--- a/lisp/mouse.el
+++ b/lisp/mouse.el
@@ -690,6 +690,9 @@ context-menu-mode-map
     (define-key map [mouse-3] #'ignore)
     (define-key map [down-mouse-3] context-menu-entry)
     (define-key map [menu] #'context-menu-open)
+    ;; Use C-f10 since S-f10 is intercepted by many terminal emulators.
+    (unless window-system
+      (define-key map [C-f10] #'context-menu-open))
     (if (featurep 'w32)
         (define-key map [apps] #'context-menu-open))
     (when (featurep 'ns)

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Subject: bug#79830: Acknowledgement (Context menu keys on tty)
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Subject: bug#79830: Context menu keys on tty
Resent-From: Eli Zaretskii <eliz@HIDDEN>
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> Cc: Spencer Baugh <sbaugh@HIDDEN>
> From: Juri Linkov <juri@HIDDEN>
> Date: Fri, 14 Nov 2025 09:07:52 +0200
> 
> Since on many terminal emulators S-f10 is not available,
> here is a patch that binds it to C-f10 only on tty and context-menu-mode.

Thanks, but shouldn't this binding be a global one, like S-f10?

(Btw, which terminal emulators intercept S-f10, and why?)

> PS: not sure if it would be ok if Emacs started as daemon
> will bind 'C-f10' to the context menu, then emacsclient will
> still retain 'C-f10' on a graphical frame.  If this is a problem,
> then we could define the binding conditionally using :filter.

Why not bind both regardless of the value of window-system?

(Btw, references to window-system the variable are deprecated; we
should use the function instead.)

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Subject: bug#79830: Context menu keys on tty
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>> Since on many terminal emulators S-f10 is not available,
>> here is a patch that binds it to C-f10 only on tty and context-menu-mode.
>
> Thanks, but shouldn't this binding be a global one, like S-f10?

By default 'C-<f10>' is bound to 'buffer-menu-open'.

> (Btw, which terminal emulators intercept S-f10, and why?)

For example, MATE Terminal, and it can't be disabled.

>> PS: not sure if it would be ok if Emacs started as daemon
>> will bind 'C-f10' to the context menu, then emacsclient will
>> still retain 'C-f10' on a graphical frame.  If this is a problem,
>> then we could define the binding conditionally using :filter.
>
> Why not bind both regardless of the value of window-system?

Because 'S-<f10>' is problematic only on tty.

> (Btw, references to window-system the variable are deprecated; we
> should use the function instead.)

I noticed that since mouse.el is preloaded, 'window-system' is always nil.
So we need to use :filter anyway, with the '(window-system)' call.

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> From: Juri Linkov <juri@HIDDEN>
> Cc: 79830 <at> debbugs.gnu.org,  sbaugh@HIDDEN
> Date: Sat, 15 Nov 2025 21:53:42 +0200
> 
> >> Since on many terminal emulators S-f10 is not available,
> >> here is a patch that binds it to C-f10 only on tty and context-menu-mode.
> >
> > Thanks, but shouldn't this binding be a global one, like S-f10?
> 
> By default 'C-<f10>' is bound to 'buffer-menu-open'.

So this binding will be lost on text terminals when context-menu-mode
is turned on?  I'm not sure we want this.  Should we consider
alternatives, like maybe M-<f10> or "C-x <f10>"?

> > (Btw, which terminal emulators intercept S-f10, and why?)
> 
> For example, MATE Terminal, and it can't be disabled.

If it's only MATE Terminal, perhaps we could reach out to it
developers and ask for an option to disable the interception?

> >> PS: not sure if it would be ok if Emacs started as daemon
> >> will bind 'C-f10' to the context menu, then emacsclient will
> >> still retain 'C-f10' on a graphical frame.  If this is a problem,
> >> then we could define the binding conditionally using :filter.
> >
> > Why not bind both regardless of the value of window-system?
> 
> Because 'S-<f10>' is problematic only on tty.

But testing the condition when the relevant code is evaluated is
problematic, because the same session can have frames of different
types, and because the condition's value when it is tested does not
necessarily tell us what will happen later in the actual use (think
daemon, for example).  So having both of the bindings available might
lower the probability of problems in this area, or even solve them
completely.

> > (Btw, references to window-system the variable are deprecated; we
> > should use the function instead.)
> 
> I noticed that since mouse.el is preloaded, 'window-system' is always nil.

You mean, _when_ mouse.el is preloaded?  Sure, that's one reason why
load-time test is a problem, see above.

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>> >> Since on many terminal emulators S-f10 is not available,
>> >> here is a patch that binds it to C-f10 only on tty and context-menu-mode.
>> >
>> > Thanks, but shouldn't this binding be a global one, like S-f10?
>> 
>> By default 'C-<f10>' is bound to 'buffer-menu-open'.
>
> So this binding will be lost on text terminals when context-menu-mode
> is turned on?  I'm not sure we want this.  Should we consider
> alternatives, like maybe M-<f10> or "C-x <f10>"?

This is the whole idea of this special mode to be able to
override the default keybindings.

>> > (Btw, which terminal emulators intercept S-f10, and why?)
>> 
>> For example, MATE Terminal, and it can't be disabled.
>
> If it's only MATE Terminal, perhaps we could reach out to it
> developers and ask for an option to disable the interception?

I don't remember if this problem exists on other terminals.
If no one provides the names of other terminal emulators
with the same problem, I'd rather retract this patch,
and only add a suggestion for rebinding customization
in the docstring:

diff --git a/lisp/mouse.el b/lisp/mouse.el
index f75800763e6..db6c394e6ce 100644
--- a/lisp/mouse.el
+++ b/lisp/mouse.el
@@ -696,7 +696,9 @@ context-menu-mode-map
       (define-key map [C-mouse-1] nil)
       (define-key map [C-down-mouse-1] context-menu-entry))
     map)
-  "Context Menu mode map.")
+  "Context Menu mode map.
+`S-f10' is intercepted by some terminal emulators.  So you can add
+a keybinding like `C-f10' to pop up the context menu on tty.")
 
 (define-minor-mode context-menu-mode
   "Toggle Context Menu mode.

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Subject: bug#79830: closed (Context menu keys on tty)
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Your message dated Thu, 20 Nov 2025 19:56:23 +0200
with message-id <87jyzkh9ko.fsf@HIDDEN>
and subject line Re: bug#79830: Context menu keys on tty
has caused the debbugs.gnu.org bug report #79830,
regarding Context menu keys on tty
to be marked as done.

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help-debbugs@HIDDEN)


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79830: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D79830
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Subject: Context menu keys on tty
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--=-=-=
Content-Type: text/plain

Since on many terminal emulators S-f10 is not available,
here is a patch that binds it to C-f10 only on tty and context-menu-mode.

PS: not sure if it would be ok if Emacs started as daemon
will bind 'C-f10' to the context menu, then emacsclient will
still retain 'C-f10' on a graphical frame.  If this is a problem,
then we could define the binding conditionally using :filter.


--=-=-=
Content-Type: text/x-diff
Content-Disposition: inline; filename=context-menu-mode-C-f10.patch

diff --git a/etc/NEWS b/etc/NEWS
index 35c536d6ee8..e645c7c2e72 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -297,6 +297,10 @@ to extend the boundaries of the active region by dragging the mouse pointer.
 The menu item enables sending current file(s) or region text to external
 (non-Emacs) applications or services.  See send-to.el for customisations.
 
+---
+*** In 'context-menu-mode' 'C-f10' pops up the context menu on tty.
+This is because 'S-f10' is often intercepted by the terminal emulator.
+
 ---
 *** The mouse now drags lines in character increments again.
 Dragging a horizontal or vertical line like the mode line or the lines
diff --git a/lisp/mouse.el b/lisp/mouse.el
index f75800763e6..5c28f6f05f9 100644
--- a/lisp/mouse.el
+++ b/lisp/mouse.el
@@ -690,6 +690,9 @@ context-menu-mode-map
     (define-key map [mouse-3] #'ignore)
     (define-key map [down-mouse-3] context-menu-entry)
     (define-key map [menu] #'context-menu-open)
+    ;; Use C-f10 since S-f10 is intercepted by many terminal emulators.
+    (unless window-system
+      (define-key map [C-f10] #'context-menu-open))
     (if (featurep 'w32)
         (define-key map [apps] #'context-menu-open))
     (when (featurep 'ns)

--=-=-=--



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Subject: Re: bug#79830: Context menu keys on tty
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>> If it's only MATE Terminal, perhaps we could reach out to it
>> developers and ask for an option to disable the interception?
>
> I don't remember if this problem exists on other terminals.
> If no one provides the names of other terminal emulators
> with the same problem, I'd rather retract this patch,

Ok, since it's easy to customize the S-f10 key on tty,
I'm closing this report.


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Subject: bug#79830: closed (Re: bug#79830: Context menu keys on tty)
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Your bug report

#79830: Context menu keys on tty

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 79830 <at> debbugs.gnu.org.

--=20
79830: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D79830
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>> If it's only MATE Terminal, perhaps we could reach out to it
>> developers and ask for an option to disable the interception?
>
> I don't remember if this problem exists on other terminals.
> If no one provides the names of other terminal emulators
> with the same problem, I'd rather retract this patch,

Ok, since it's easy to customize the S-f10 key on tty,
I'm closing this report.


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To: bug-gnu-emacs@HIDDEN
Subject: Context menu keys on tty
Organization: LINKOV.NET
X-Debbugs-Cc: Spencer Baugh <sbaugh@HIDDEN>
Date: Fri, 14 Nov 2025 09:07:52 +0200
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Content-Type: text/plain

Since on many terminal emulators S-f10 is not available,
here is a patch that binds it to C-f10 only on tty and context-menu-mode.

PS: not sure if it would be ok if Emacs started as daemon
will bind 'C-f10' to the context menu, then emacsclient will
still retain 'C-f10' on a graphical frame.  If this is a problem,
then we could define the binding conditionally using :filter.


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Content-Type: text/x-diff
Content-Disposition: inline; filename=context-menu-mode-C-f10.patch

diff --git a/etc/NEWS b/etc/NEWS
index 35c536d6ee8..e645c7c2e72 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -297,6 +297,10 @@ to extend the boundaries of the active region by dragging the mouse pointer.
 The menu item enables sending current file(s) or region text to external
 (non-Emacs) applications or services.  See send-to.el for customisations.
 
+---
+*** In 'context-menu-mode' 'C-f10' pops up the context menu on tty.
+This is because 'S-f10' is often intercepted by the terminal emulator.
+
 ---
 *** The mouse now drags lines in character increments again.
 Dragging a horizontal or vertical line like the mode line or the lines
diff --git a/lisp/mouse.el b/lisp/mouse.el
index f75800763e6..5c28f6f05f9 100644
--- a/lisp/mouse.el
+++ b/lisp/mouse.el
@@ -690,6 +690,9 @@ context-menu-mode-map
     (define-key map [mouse-3] #'ignore)
     (define-key map [down-mouse-3] context-menu-entry)
     (define-key map [menu] #'context-menu-open)
+    ;; Use C-f10 since S-f10 is intercepted by many terminal emulators.
+    (unless window-system
+      (define-key map [C-f10] #'context-menu-open))
     (if (featurep 'w32)
         (define-key map [apps] #'context-menu-open))
     (when (featurep 'ns)

--=-=-=--



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