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Re: New Context Menu

From: Juri Linkov
Subject: Re: New Context Menu
Date: Mon, 23 Aug 2021 19:04:39 +0300
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (x86_64-pc-linux-gnu)

> The question is: do we want to remove this unconditionally for all the
> commands that say (interactive "e") ?  That sounds a
> backward-incompatible change to me.
> Should we perhaps condition that by some variable, which menu commands
> could bind when they want?

So here is a new variable:

diff --git a/src/callint.c b/src/callint.c
index 6f8a7f13f6..381a3443d2 100644
--- a/src/callint.c
+++ b/src/callint.c
@@ -606,7 +606,7 @@ DEFUN ("call-interactively", Fcall_interactively, 
Scall_interactively, 1, 3, 0,
        case 'e':               /* The invoking event.  */
-         if (next_event >= key_count)
+         if (!inhibit_event_check && next_event >= key_count)
            error ("%s must be bound to an event with parameters",
                   (SYMBOLP (function)
                    ? SSDATA (SYMBOL_NAME (function))
@@ -900,6 +900,13 @@ syms_of_callint (void)
 a way to turn themselves off when a mouse command switches windows.  */);
   Vmouse_leave_buffer_hook = Qnil;
+  DEFVAR_BOOL ("inhibit-event-check", inhibit_event_check,
+    doc: /* Non-nil means the interactive spec "e" doesn't check for events.
+In this case `(interactive "e")' doesn't signal an error when no event
+is produced.  Then `event-start', `event-end', `event-click-count'
+can create a new event.  */);
+  inhibit_event_check = false;
   defsubr (&Sinteractive);
   defsubr (&Scall_interactively);
   defsubr (&Sfuncall_interactively);

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