mirror of
https://github.com/awesomeWM/awesome
synced 2024-11-17 07:47:41 +01:00
146 lines
3.8 KiB
C
146 lines
3.8 KiB
C
/*
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* xutil.c - X-related useful functions
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*
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* Copyright © 2007 Julien Danjou <julien@danjou.info>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include <X11/Xutil.h>
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#include <X11/Xatom.h>
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#include <X11/extensions/Xinerama.h>
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#include <sys/wait.h>
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#include "util.h"
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#include "xutil.h"
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extern AwesomeConf globalconf;
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/** Execute another process, replacing the current instance of Awesome
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* \param screen Screen ID
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* \param arg Command
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* \ingroup ui_callback
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*/
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void
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uicb_exec(int screen __attribute__ ((unused)), char *arg)
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{
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char path[PATH_MAX];
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if(globalconf.display)
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close(ConnectionNumber(globalconf.display));
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sscanf(arg, "%s", path);
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execlp(path, arg, NULL);
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}
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/** Spawn another process
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* \param screen Screen ID
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* \param arg Command
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* \ingroup ui_callback
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*/
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void
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uicb_spawn(int screen, char *arg)
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{
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static char *shell = NULL;
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char *display = NULL;
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char *tmp, newdisplay[128];
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if(!shell && !(shell = getenv("SHELL")))
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shell = a_strdup("/bin/sh");
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if(!arg)
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return;
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if(!XineramaIsActive(globalconf.display) && (tmp = getenv("DISPLAY")))
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{
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display = a_strdup(tmp);
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if((tmp = strrchr(display, '.')))
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*tmp = '\0';
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snprintf(newdisplay, sizeof(newdisplay), "%s.%d", display, screen);
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setenv("DISPLAY", newdisplay, 1);
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}
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/* The double-fork construct avoids zombie processes and keeps the code
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* clean from stupid signal handlers. */
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if(fork() == 0)
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{
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if(fork() == 0)
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{
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if(globalconf.display)
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close(ConnectionNumber(globalconf.display));
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setsid();
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execl(shell, shell, "-c", arg, (char *) NULL);
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warn("execl '%s -c %s'", shell, arg);
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perror(" failed");
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}
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exit(EXIT_SUCCESS);
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}
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wait(0);
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}
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Bool
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xgettextprop(Display *disp, Window w, Atom atom, char *text, ssize_t textlen)
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{
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char **list = NULL;
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int n;
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XTextProperty name;
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if(!text || !textlen)
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return False;
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text[0] = '\0';
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XGetTextProperty(disp, w, &name, atom);
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if(!name.nitems)
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return False;
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if(name.encoding == XA_STRING)
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a_strncpy(text, textlen, (char *) name.value, textlen - 1);
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else if(XmbTextPropertyToTextList(disp, &name, &list, &n) >= Success && n > 0 && *list)
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{
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a_strncpy(text, textlen, *list, textlen - 1);
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XFreeStringList(list);
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}
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text[textlen - 1] = '\0';
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XFree(name.value);
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return True;
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}
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/** Initialize an X color
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* \param screen Screen number
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* \param colstr Color specification
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*/
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XColor
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initxcolor(int screen, const char *colstr)
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{
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XColor screenColor, exactColor;
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int ret, physcreen = get_phys_screen(screen);
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ret = XAllocNamedColor(globalconf.display,
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DefaultColormap(globalconf.display, physcreen),
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colstr,
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&screenColor,
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&exactColor);
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if(!ret)
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eprint("awesome: error, cannot allocate color '%s'\n", colstr);
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return screenColor;
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}
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// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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