diff options
Diffstat (limited to 'src/panel_util.c')
| -rw-r--r-- | src/panel_util.c | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/src/panel_util.c b/src/panel_util.c new file mode 100644 index 0000000..593413f --- /dev/null +++ b/src/panel_util.c @@ -0,0 +1,233 @@ +#include "panel_util.h" + +extern MBPanel* G_panel; + +void +util_cleanup_children(int s) +{ + DBG("DIE DIE\n"); + kill(-getpid(), 15); /* kill every one in our process group */ + exit(0); +} + +void +util_install_signal_handlers(void) +{ + + signal (SIGCHLD, SIG_IGN); /* kernel can deal with zombies */ + signal (SIGINT, util_cleanup_children); + signal (SIGQUIT, util_cleanup_children); + signal (SIGTERM, util_cleanup_children); + signal (SIGHUP, util_handle_hup); + signal (SIGALRM, util_handle_alarm); + // signal (SIGSEGV, cleanup_children); + +} + +int +util_handle_xerror(Display *dpy, XErrorEvent *e) +{ + char msg[255]; + XGetErrorText(dpy, e->error_code, msg, sizeof msg); + fprintf(stderr, "Panel X error (%#lx):\n %s (opcode: %i)\n", + e->resourceid, msg, e->request_code); + return 0; +} + +pid_t +util_fork_exec(char *cmd) +{ + pid_t pid, mypid; + mypid = getpid(); + pid = fork(); + + switch (pid) { + case 0: + setpgid (0, mypid); /* set pgid to parents pid */ + mb_exec(cmd); + fprintf(stderr, "exec failed, cleaning up child\n"); + exit(1); + case -1: + fprintf(stderr, "can't fork\n"); break; + } + return pid; +} + + +void +util_handle_alarm(int s) +{ + MBPanel *p = G_panel; + DBG("%s() called", __func__); + session_save(p); +} + +void +util_handle_hup(int s) +{ + MBPanel *p = G_panel; + DBG("%s() called", __func__); + + if (p != NULL) + { + p->reload_pending = True; + } +} + +void +util_get_mouse_position(MBPanel *panel, int *x, int *y) +{ + Window mouse_root, mouse_win; + int win_x, win_y; + unsigned int mask; + + XQueryPointer(panel->dpy, panel->win_root, &mouse_root, &mouse_win, + x, y, &win_x, &win_y, &mask); +} + +pid_t +util_get_window_pid_from_prop(MBPanel *panel, Window win) +{ + Atom type; + int format; + long bytes_after; + unsigned int *data = NULL; + long n_items; + int result; + pid_t pid_result = 0; + + result = XGetWindowProperty (panel->dpy, win, + panel->atoms[ATOM_NET_WM_PID], + 0, 16L, + False, XA_CARDINAL, + &type, &format, &n_items, + &bytes_after, (unsigned char **)&data); + + if (result == Success && n_items) + pid_result = *data; + + if (data) XFree(data); + + return pid_result; +} + +Bool +util_get_command_str_from_win(MBPanel *panel, Window win, char **result) +{ + int i, bytes_needed = 0; + char *p = NULL, *cmd = NULL, **argv_win; + int argc_win; + + if (!XGetCommand(panel->dpy, win, &argv_win, &argc_win)) + return False; + + bytes_needed = strlen(argv_win[0])+2; + + for(i=1;i<argc_win;i++) + { + bytes_needed += strlen(argv_win[i])+2; + for (p = argv_win[i]; *p != '\0'; p++) + if (*p == ' ' || *p == '\t') + bytes_needed++; + } + + *result = malloc(sizeof(char)*bytes_needed); + cmd = *result; + + strcpy(cmd, argv_win[0]); + while(*cmd != '\0') cmd++; + + for(i=1;i<argc_win;i++) + { + p = argv_win[i]; + *cmd++ = ' '; + + if (strpbrk(p, " \t") == NULL) + { + while (*p) *cmd++ = *p++; + } else { + *cmd++ = '\''; + while (*p) + { + if (*p == '\'') + *cmd++ = '\\'; + *cmd++ = *p++; + } + *cmd++ = '\''; + } + } + + *cmd = '\0'; + + XFreeStringList(argv_win); + + return True; +} + +Bool +util_xcol_from_spec(MBPanel *panel, MBColor *col, char *spec) +{ + mb_col_set (col, spec); + return True; +} + +Pixmap +util_get_root_pixmap(MBPanel *panel) +{ + Pixmap root_pxm = None; + + Atom type; + int format; + long bytes_after; + Pixmap *data = NULL; + long n_items; + int result; + + result = XGetWindowProperty (panel->dpy, panel->win_root, + panel->atoms[ATOM_XROOTPMAP_ID], + 0, 16L, + False, XA_PIXMAP, + &type, &format, &n_items, + &bytes_after, (unsigned char **)&data); + + if (result == Success && n_items) + root_pxm = *data; + + if (data) XFree(data); + + panel->root_pixmap_id = root_pxm; + + return root_pxm; +} + +unsigned char * +util_get_utf8_prop(MBPanel *panel, Window win, Atom req_atom) +{ + Atom type; + int format; + long bytes_after; + unsigned char *str = NULL; + long n_items; + int result; + + result = XGetWindowProperty (panel->dpy, win, + req_atom, + 0, 1024L, + False, panel->atoms[ATOM_UTF8_STRING], + &type, &format, &n_items, + &bytes_after, (unsigned char **)&str); + + if (result != Success || str == NULL) + { + if (str) XFree (str); + return NULL; + } + + if (type != panel->atoms[ATOM_UTF8_STRING] || format != 8 || n_items == 0) + { + XFree (str); + return NULL; + } + + return str; +} |