mc: fix mouse handling

Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>

utils/mc/Makefile

@@ -7,7 +7,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=mc
 PKG_VERSION:=4.8.24
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 PKG_MAINTAINER:=Dirk Brenken <dev@brenken.org>
 PKG_LICENSE:=GPL-3.0-or-later
 PKG_CPE_ID:=cpe:/a:midnight_commander:midnight_commander

utils/mc/patches/020-fix-mouse-handling-newer-terminfo.patch

@@ -0,0 +1,73 @@
+From b92c7f86b4be3b200e0f2de713a4c40b28599e61 Mon Sep 17 00:00:00 2001
+From: Egmont Koblinger <egmont@gmail.com>
+Date: Fri, 14 Feb 2020 22:14:19 +0100
+Subject: [PATCH] Ticket #3954: fix mouse handling with newer terminfo entries.
+
+Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
+---
+ lib/tty/key.c   | 11 +++++++++--
+ lib/tty/mouse.c |  6 ++++--
+ lib/tty/tty.c   |  9 ++++++++-
+ 3 files changed, 21 insertions(+), 5 deletions(-)
+
+diff --git a/lib/tty/key.c b/lib/tty/key.c
+index 1aa5110af0..4abfc71d73 100644
+--- a/lib/tty/key.c
++++ b/lib/tty/key.c
+@@ -2120,8 +2120,15 @@ tty_get_event (struct Gpm_Event *event, gboolean redo_event, gboolean block)
+ #endif /* KEY_MOUSE */
+                           || c == MCKEY_EXTENDED_MOUSE))
+     {
+-        /* Mouse event */
+-        xmouse_get_event (event, c == MCKEY_EXTENDED_MOUSE);
++        /* Mouse event. See tickets 2956 and 3954 for extended mode detection. */
++        gboolean extended = c == MCKEY_EXTENDED_MOUSE;
++
++#ifdef KEY_MOUSE
++        extended = extended || (c == KEY_MOUSE && xmouse_seq == NULL
++                                && xmouse_extended_seq != NULL);
++#endif /* KEY_MOUSE */
++
++        xmouse_get_event (event, extended);
+         c = (event->type != 0) ? EV_MOUSE : EV_NONE;
+     }
+     else if (c == MCKEY_BRACKETED_PASTING_START)
+diff --git a/lib/tty/mouse.c b/lib/tty/mouse.c
+index 0f830ce08a..1bba0cc587 100644
+--- a/lib/tty/mouse.c
++++ b/lib/tty/mouse.c
+@@ -90,8 +90,10 @@ init_mouse (void)
+ 
+     case MOUSE_XTERM_NORMAL_TRACKING:
+     case MOUSE_XTERM_BUTTON_EVENT_TRACKING:
+-        define_sequence (MCKEY_MOUSE, xmouse_seq, MCKEY_NOACTION);
+-        define_sequence (MCKEY_EXTENDED_MOUSE, xmouse_extended_seq, MCKEY_NOACTION);
++        if (xmouse_seq != NULL)
++            define_sequence (MCKEY_MOUSE, xmouse_seq, MCKEY_NOACTION);
++        if (xmouse_extended_seq != NULL)
++            define_sequence (MCKEY_EXTENDED_MOUSE, xmouse_extended_seq, MCKEY_NOACTION);
+         break;
+ 
+     default:
+diff --git a/lib/tty/tty.c b/lib/tty/tty.c
+index 1bca37c476..a232cd96e8 100644
+--- a/lib/tty/tty.c
++++ b/lib/tty/tty.c
+@@ -361,9 +361,16 @@ tty_init_xterm_support (gboolean is_xterm)
+         }
+     }
+ 
+-    /* No termcap for SGR extended mouse (yet), hardcode it for now */
++    /* There's only one termcap entry "kmous", typically containing "\E[M" or "\E[<".
++     * We need the former in xmouse_seq, the latter in xmouse_extended_seq.
++     * See tickets 2956 and 3954 for details. */
+     if (xmouse_seq != NULL)
++    {
++        if (strcmp (xmouse_seq, ESC_STR "[<") == 0)
++            xmouse_seq = NULL;
++
+         xmouse_extended_seq = ESC_STR "[<";
++    }
+ }
+ 
+ /* --------------------------------------------------------------------------------------------- */