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https://github.com/MidnightCommander/mc
synced 2025-01-07 03:52:00 +03:00
1515c9f152
A followup extension, "SGR 1006" was invented by xterm, to overcome some of the shortcomings of the previous one. It is becoming as widespread as the previous one, and is likely to soon overtake it in popularity. Note that most of the patch is just the removal of the huge complexity introduced by the previous one. The previous extension didn't have a unique prefix which made the whole parsing logic extremely complicated. The new extension does have a unique prefix, so parsing becomes a piece of cake. The code becomes much cleaner and much easier to maintain. Signed-off-by: Slava Zanko <slavazanko@gmail.com>
216 lines
5.6 KiB
C
216 lines
5.6 KiB
C
/*
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Mouse managing
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Copyright (C) 1994, 1998, 1999, 2000, 2001, 2002, 2004, 2005, 2006,
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2007, 2009, 2011
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The Free Software Foundation, Inc.
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Written by:
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Andrew Borodin <aborodin@vmail.ru>, 2009.
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This file is part of the Midnight Commander.
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The Midnight Commander is free software: you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of the License,
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or (at your option) any later version.
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The Midnight Commander is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** \file mouse.c
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* \brief Source: mouse managing
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*
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* Events received by clients of this library have their coordinates 0 based
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*/
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#include <config.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "lib/global.h"
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#include "tty.h"
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#include "tty-internal.h" /* mouse_enabled */
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#include "mouse.h"
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#include "key.h" /* define sequence */
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/*** global variables ****************************************************************************/
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Mouse_Type use_mouse_p = MOUSE_NONE;
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gboolean mouse_enabled = FALSE;
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const char *xmouse_seq;
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const char *xmouse_extended_seq;
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/*** file scope macro definitions ****************************************************************/
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/*** file scope type declarations ****************************************************************/
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/*** file scope variables ************************************************************************/
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/*** file scope functions ************************************************************************/
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/* --------------------------------------------------------------------------------------------- */
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/* --------------------------------------------------------------------------------------------- */
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/*** public functions ****************************************************************************/
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/* --------------------------------------------------------------------------------------------- */
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void
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show_mouse_pointer (int x, int y)
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{
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#ifdef HAVE_LIBGPM
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if (use_mouse_p == MOUSE_GPM)
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Gpm_DrawPointer (x, y, gpm_consolefd);
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#else
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(void) x;
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(void) y;
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#endif /* HAVE_LIBGPM */
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}
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/* --------------------------------------------------------------------------------------------- */
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void
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init_mouse (void)
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{
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switch (use_mouse_p)
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{
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#ifdef HAVE_LIBGPM
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case MOUSE_NONE:
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use_mouse_p = MOUSE_GPM;
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break;
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#endif /* HAVE_LIBGPM */
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case MOUSE_XTERM_NORMAL_TRACKING:
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case MOUSE_XTERM_BUTTON_EVENT_TRACKING:
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define_sequence (MCKEY_MOUSE, xmouse_seq, MCKEY_NOACTION);
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define_sequence (MCKEY_EXTENDED_MOUSE, xmouse_extended_seq, MCKEY_NOACTION);
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break;
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default:
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break;
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}
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enable_mouse ();
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}
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/* --------------------------------------------------------------------------------------------- */
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void
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enable_mouse (void)
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{
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if (mouse_enabled)
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return;
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switch (use_mouse_p)
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{
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#ifdef HAVE_LIBGPM
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case MOUSE_GPM:
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{
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int mouse_d;
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Gpm_Connect conn;
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conn.eventMask = ~GPM_MOVE;
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conn.defaultMask = GPM_MOVE;
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conn.minMod = 0;
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conn.maxMod = 0;
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mouse_d = Gpm_Open (&conn, 0);
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if (mouse_d == -1)
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{
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use_mouse_p = MOUSE_NONE;
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return;
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}
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mouse_enabled = TRUE;
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}
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break;
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#endif /* HAVE_LIBGPM */
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case MOUSE_XTERM_NORMAL_TRACKING:
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/* save old highlight mouse tracking */
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printf (ESC_STR "[?1001s");
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/* enable mouse tracking */
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printf (ESC_STR "[?1000h");
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/* enable SGR extended mouse reporting */
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printf (ESC_STR "[?1006h");
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fflush (stdout);
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mouse_enabled = TRUE;
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break;
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case MOUSE_XTERM_BUTTON_EVENT_TRACKING:
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/* save old highlight mouse tracking */
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printf (ESC_STR "[?1001s");
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/* enable mouse tracking */
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printf (ESC_STR "[?1002h");
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/* enable SGR extended mouse reporting */
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printf (ESC_STR "[?1006h");
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fflush (stdout);
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mouse_enabled = TRUE;
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break;
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default:
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break;
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}
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}
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/* --------------------------------------------------------------------------------------------- */
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void
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disable_mouse (void)
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{
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if (!mouse_enabled)
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return;
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mouse_enabled = FALSE;
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switch (use_mouse_p)
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{
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#ifdef HAVE_LIBGPM
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case MOUSE_GPM:
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Gpm_Close ();
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break;
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#endif
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case MOUSE_XTERM_NORMAL_TRACKING:
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/* disable SGR extended mouse reporting */
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printf (ESC_STR "[?1006l");
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/* disable mouse tracking */
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printf (ESC_STR "[?1000l");
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/* restore old highlight mouse tracking */
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printf (ESC_STR "[?1001r");
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fflush (stdout);
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break;
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case MOUSE_XTERM_BUTTON_EVENT_TRACKING:
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/* disable SGR extended mouse reporting */
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printf (ESC_STR "[?1006l");
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/* disable mouse tracking */
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printf (ESC_STR "[?1002l");
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/* restore old highlight mouse tracking */
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printf (ESC_STR "[?1001r");
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fflush (stdout);
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break;
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default:
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break;
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}
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}
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/* --------------------------------------------------------------------------------------------- */
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