Adding upstream version 3:4.8.30.upstream/3%4.8.30

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 216 insertions, 0 deletions

diff --git a/lib/tty/mouse.c b/lib/tty/mouse.c
new file mode 100644
index 0000000..cf42287
--- /dev/null
+++ b/lib/tty/mouse.c
@@ -0,0 +1,216 @@
+/*
+   Mouse managing
+
+   Copyright (C) 1994-2023
+   Free Software Foundation, Inc.
+
+   Written by:
+   Andrew Borodin <aborodin@vmail.ru>, 2009.
+
+   This file is part of the Midnight Commander.
+
+   The Midnight Commander is free software: you can redistribute it
+   and/or modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of the License,
+   or (at your option) any later version.
+
+   The Midnight Commander is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** \file mouse.c
+ *  \brief Source: mouse managing
+ *
+ *  Events received by clients of this library have their coordinates 0 based
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "lib/global.h"
+
+#include "tty.h"
+#include "tty-internal.h"       /* mouse_enabled */
+#include "mouse.h"
+#include "key.h"                /* define sequence */
+
+/*** global variables ****************************************************************************/
+
+Mouse_Type use_mouse_p = MOUSE_NONE;
+gboolean mouse_enabled = FALSE;
+int mouse_fd = -1;              /* for when gpm_fd changes to < 0 and the old one must be cleared from select_set */
+const char *xmouse_seq;
+const char *xmouse_extended_seq;
+
+/*** file scope macro definitions ****************************************************************/
+
+/*** file scope type declarations ****************************************************************/
+
+/*** file scope variables ************************************************************************/
+
+/*** file scope functions ************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+/* --------------------------------------------------------------------------------------------- */
+/*** public functions ****************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+void
+show_mouse_pointer (int x, int y)
+{
+#ifdef HAVE_LIBGPM
+    if (use_mouse_p == MOUSE_GPM)
+        Gpm_DrawPointer (x, y, gpm_consolefd);
+#else
+    (void) x;
+    (void) y;
+#endif /* HAVE_LIBGPM */
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+init_mouse (void)
+{
+    switch (use_mouse_p)
+    {
+#ifdef HAVE_LIBGPM
+    case MOUSE_NONE:
+        use_mouse_p = MOUSE_GPM;
+        break;
+#endif /* HAVE_LIBGPM */
+
+    case MOUSE_XTERM_NORMAL_TRACKING:
+    case MOUSE_XTERM_BUTTON_EVENT_TRACKING:
+        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:
+        break;
+    }
+
+    enable_mouse ();
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+enable_mouse (void)
+{
+    if (mouse_enabled)
+        return;
+
+    switch (use_mouse_p)
+    {
+#ifdef HAVE_LIBGPM
+    case MOUSE_GPM:
+        {
+            Gpm_Connect conn;
+
+            conn.eventMask = ~GPM_MOVE;
+            conn.defaultMask = GPM_MOVE;
+            conn.minMod = 0;
+            conn.maxMod = 0;
+
+            mouse_fd = Gpm_Open (&conn, 0);
+            if (mouse_fd == -1)
+            {
+                use_mouse_p = MOUSE_NONE;
+                return;
+            }
+            mouse_enabled = TRUE;
+        }
+        break;
+#endif /* HAVE_LIBGPM */
+
+    case MOUSE_XTERM_NORMAL_TRACKING:
+        /* save old highlight mouse tracking */
+        printf (ESC_STR "[?1001s");
+
+        /* enable mouse tracking */
+        printf (ESC_STR "[?1000h");
+
+        /* enable SGR extended mouse reporting */
+        printf (ESC_STR "[?1006h");
+
+        fflush (stdout);
+        mouse_enabled = TRUE;
+        break;
+
+    case MOUSE_XTERM_BUTTON_EVENT_TRACKING:
+        /* save old highlight mouse tracking */
+        printf (ESC_STR "[?1001s");
+
+        /* enable mouse tracking */
+        printf (ESC_STR "[?1002h");
+
+        /* enable SGR extended mouse reporting */
+        printf (ESC_STR "[?1006h");
+
+        fflush (stdout);
+        mouse_enabled = TRUE;
+        break;
+
+    default:
+        break;
+    }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+disable_mouse (void)
+{
+    if (!mouse_enabled)
+        return;
+
+    mouse_enabled = FALSE;
+
+    switch (use_mouse_p)
+    {
+#ifdef HAVE_LIBGPM
+    case MOUSE_GPM:
+        Gpm_Close ();
+        break;
+#endif
+    case MOUSE_XTERM_NORMAL_TRACKING:
+        /* disable SGR extended mouse reporting */
+        printf (ESC_STR "[?1006l");
+
+        /* disable mouse tracking */
+        printf (ESC_STR "[?1000l");
+
+        /* restore old highlight mouse tracking */
+        printf (ESC_STR "[?1001r");
+
+        fflush (stdout);
+        break;
+    case MOUSE_XTERM_BUTTON_EVENT_TRACKING:
+        /* disable SGR extended mouse reporting */
+        printf (ESC_STR "[?1006l");
+
+        /* disable mouse tracking */
+        printf (ESC_STR "[?1002l");
+
+        /* restore old highlight mouse tracking */
+        printf (ESC_STR "[?1001r");
+
+        fflush (stdout);
+        break;
+    default:
+        break;
+    }
+}
+
+/* --------------------------------------------------------------------------------------------- */