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replace the non-working check to see if another wm is running with a

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method that actually works.  checking for icccm compliant wm's should
also be done first, but that's another diff (noted by oga).

ok oga@
This commit is contained in:
okan 2011-06-24 05:58:51 +00:00
parent d39f5b9183
commit c566b31bd0
1 changed files with 20 additions and 19 deletions
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39
calmwm.c
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@ -45,12 +45,12 @@ struct screen_ctx_q Screenq = TAILQ_HEAD_INITIALIZER(Screenq);
struct client_ctx_q Clientq = TAILQ_HEAD_INITIALIZER(Clientq); struct client_ctx_q Clientq = TAILQ_HEAD_INITIALIZER(Clientq);
int HasXinerama, HasRandr, Randr_ev; int HasXinerama, HasRandr, Randr_ev;
int Starting;
struct conf Conf; struct conf Conf;
static void sigchld_cb(int); static void sigchld_cb(int);
static void dpy_init(const char *); static void dpy_init(const char *);
static int x_errorhandler(Display *, XErrorEvent *); static int x_errorhandler(Display *, XErrorEvent *);
static int x_wmerrorhandler(Display *, XErrorEvent *);
static void x_setup(void); static void x_setup(void);
static void x_setupscreen(struct screen_ctx *, u_int); static void x_setupscreen(struct screen_ctx *, u_int);
static void x_teardown(void); static void x_teardown(void);
@ -80,14 +80,12 @@ main(int argc, char **argv)
if (signal(SIGCHLD, sigchld_cb) == SIG_ERR) if (signal(SIGCHLD, sigchld_cb) == SIG_ERR)
err(1, "signal"); err(1, "signal");
Starting = 1;
dpy_init(display_name); dpy_init(display_name);
bzero(&Conf, sizeof(Conf)); bzero(&Conf, sizeof(Conf));
conf_setup(&Conf, conf_file); conf_setup(&Conf, conf_file);
xu_getatoms(); xu_getatoms();
x_setup(); x_setup();
Starting = 0;
xev_loop(); xev_loop();
@ -101,10 +99,15 @@ dpy_init(const char *dpyname)
{ {
int i; int i;
XSetErrorHandler(x_errorhandler);
if ((X_Dpy = XOpenDisplay(dpyname)) == NULL) if ((X_Dpy = XOpenDisplay(dpyname)) == NULL)
errx(1, "unable to open display \"%s\"", errx(1, "unable to open display \"%s\"",
XDisplayName(dpyname)); XDisplayName(dpyname));
XSetErrorHandler(x_wmerrorhandler);
XSelectInput(X_Dpy, DefaultRootWindow(X_Dpy), SubstructureRedirectMask);
XSync(X_Dpy, False);
XSetErrorHandler(x_errorhandler); XSetErrorHandler(x_errorhandler);
HasRandr = XRRQueryExtension(X_Dpy, &Randr_ev, &i); HasRandr = XRRQueryExtension(X_Dpy, &Randr_ev, &i);
@ -211,28 +214,26 @@ x_setupscreen(struct screen_ctx *sc, u_int which)
XSync(X_Dpy, False); XSync(X_Dpy, False);
} }
static int
x_wmerrorhandler(Display *dpy, XErrorEvent *e)
{
errx(1, "root window unavailable - perhaps another wm is running?");
return (0);
}
static int static int
x_errorhandler(Display *dpy, XErrorEvent *e) x_errorhandler(Display *dpy, XErrorEvent *e)
{ {
#ifdef DEBUG #if DEBUG
{ char msg[80], number[80], req[80];
char msg[80], number[80], req[80];
XGetErrorText(X_Dpy, e->error_code, msg, sizeof(msg)); XGetErrorText(X_Dpy, e->error_code, msg, sizeof(msg));
snprintf(number, sizeof(number), "%d", e->request_code); snprintf(number, sizeof(number), "%d", e->request_code);
XGetErrorDatabaseText(X_Dpy, "XRequest", number, XGetErrorDatabaseText(X_Dpy, "XRequest", number,
"<unknown>", req, sizeof(req)); "<unknown>", req, sizeof(req));
warnx("%s(0x%x): %s", req, (u_int)e->resourceid, msg); warnx("%s(0x%x): %s", req, (u_int)e->resourceid, msg);
}
#endif #endif
if (Starting &&
e->error_code == BadAccess &&
e->request_code == X_GrabKey)
errx(1, "root window unavailable - perhaps another "
"wm is running?");
return (0); return (0);
} }