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Author SHA1 Message Date
Sky Hearn 5d30ee7db5 Revert "gruvbox themeing attempt" 
This reverts commit 5fbf60e0ca.
 2024-03-02 00:04:42 -08:00
Sky Hearn 5fbf60e0ca gruvbox themeing attempt 2024-03-02 00:01:50 -08:00
Sky Hearn 3bb5cbac79 Colorbar 2024-03-01 23:53:56 -08:00
Sky Hearn 1a7ba5c479
gaps 2024-02-27 23:21:38 -08:00
Hiltjo Posthuma 9f8855343c Makefile: remove the options target 
The Makefile used to suppress output (by using @), so this target made sense at
the time.

But the Makefile should be simple and make debugging with less abstractions or
fancy printing.  The Makefile was made verbose and doesn't hide the build
output, so remove this target.

Prompted by a question on the mailing list about the options target.
 2023-09-22 15:13:29 +02:00
Hiltjo Posthuma e81f17d4c1 restore SIGCHLD sighandler to default before spawning a program 
From sigaction(2):
A child created via fork(2) inherits a copy of its parent's signal dispositions.
During an execve(2), the dispositions of handled signals are reset to the default;
the dispositions of ignored signals are left unchanged.

This refused to start directly some programs from configuring in config.h:

static Key keys[] = {
	MODKEY,                       XK_o,      spawn,          {.v = cmd } },
};

Some reported programs that didn't start were: mpv, anki, dmenu_extended.

Reported by pfx.
Initial patch suggestion by Storkman.
 2023-04-09 12:37:14 +02:00
NRK 348f6559ab config.mk: update to _XOPEN_SOURCE=700L 
SA_NOCLDWAIT is marked as XSI in the posix spec [0] and FreeBSD and NetBSD
seems to more be strict about the feature test macro [1].

so update the macro to use _XOPEN_SOURCE=700L instead, which is equivalent to
_POSIX_C_SOURCE=200809L except that it also unlocks the X/Open System
Interfaces.

[0]: https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/signal.h.html#tag_13_42
[1]: https://lists.suckless.org/dev/2302/35111.html

Tested on:
* NetBSD 9.3 (fixed).
* FreeBSD 13 (fixed).
* Void Linux musl.
* Void Linux glibc.
* OpenBSD 7.2 (stable).
* Slackware 11.

Reported-by: beastie <pufferfish@riseup.net>
 2023-02-17 15:27:34 +01:00
Chris Down 712d6639ff Use sigaction(SA_NOCLDWAIT) for SIGCHLD handling 
signal() semantics are pretty unclearly specified. For example, depending on OS
kernel and libc, the handler may be returned to SIG_DFL (hence the inner call
to read the signal handler). Moving to sigaction() means the behaviour is
consistently defined.

Using SA_NOCLDWAIT also allows us to avoid calling the non-reentrant function
die() in the handler.

Some addditional notes for archival purposes:

* NRK pointed out errno of waitpid could also theoretically get clobbered.
* The original patch was iterated on and modified by NRK and Hiltjo:
  * SIG_DFL was changed to SIG_IGN, this is required, atleast on older systems
    such as tested on Slackware 11.
  * signals are not blocked using sigprocmask, because in theory it would
    briefly for example also ignore a SIGTERM signal. It is OK if waitpid() is (in
    theory interrupted).

POSIX reference:
"Consequences of Process Termination":
https://pubs.opengroup.org/onlinepubs/9699919799/functions/_Exit.html#tag_16_01_03_01
 2023-01-28 13:34:43 +01:00
Chris Down 89f9905714 grabkeys: Avoid missing events when a keysym maps to multiple keycodes 
It's not uncommon for one keysym to map to multiple keycodes. For
example, the "play" button on my keyboard sends keycode 172, but my
bluetooth headphones send keycode 208, both of which map back to
XF86AudioPlay:

    % xmodmap -pke | grep XF86AudioPlay
    keycode 172 = XF86AudioPlay XF86AudioPause XF86AudioPlay XF86AudioPause
    keycode 208 = XF86AudioPlay NoSymbol XF86AudioPlay
    keycode 215 = XF86AudioPlay NoSymbol XF86AudioPlay

This is a problem because the current code only grabs a single one of
these keycodes, which means that events for any other keycode also
mapping to the bound keysym will not be handled by dwm. In my case, this
means that binding XF86AudioPlay does the right thing and correctly
handles my keyboard's keys, but does nothing on my headphones. I'm not
the only person affected by this, there are other reports[0].

In order to fix this, we look at the mappings between keycodes and
keysyms at grabkeys() time and pick out all matching keycodes rather
than just the first one. The keypress() side of this doesn't need any
changes because the keycode gets converted back to a canonical keysym
before any action is taken.

0: https://github.com/cdown/dwm/issues/11
 2022-12-07 23:06:26 +01:00
Hiltjo Posthuma ba56fe9fea Revert "Remove dmenumon variable" 
This reverts commit c2b748e793.

Revert back this change. It seems to not be an edge-case anymore since
multiple users have asked about this new behaviour now.
 2022-10-28 16:37:56 +02:00
4 changed files with 65 additions and 44 deletions
Show Stats Expand all files Collapse all files

10
Makefile
View File

@ -6,13 +6,7 @@ include config.mk
SRC = drw.c dwm.c util.c
OBJ = ${SRC:.c=.o}
all: options dwm
options:
@echo dwm build options:
@echo "CFLAGS = ${CFLAGS}"
@echo "LDFLAGS = ${LDFLAGS}"
@echo "CC = ${CC}"
all: dwm
.c.o:
${CC} -c ${CFLAGS} $<
@ -48,4 +42,4 @@ uninstall:
rm -f ${DESTDIR}${PREFIX}/bin/dwm\
${DESTDIR}${MANPREFIX}/man1/dwm.1
.PHONY: all options clean dist install uninstall
.PHONY: all clean dist install uninstall

10
config.def.h
View File

@ -2,6 +2,7 @@
/* appearance */
static const unsigned int borderpx = 1; /* border pixel of windows */
static const unsigned int gappx = 10; /* gap pixel between windows */
static const unsigned int snap = 32; /* snap pixel */
static const int showbar = 1; /* 0 means no bar */
static const int topbar = 1; /* 0 means bottom bar */
@ -16,6 +17,11 @@ static const char *colors[][3] = {
/* fg bg border */
[SchemeNorm] = { col_gray3, col_gray1, col_gray2 },
[SchemeSel] = { col_gray4, col_cyan, col_cyan },
[SchemeStatus] = { col_gray3, col_gray1, "#000000" }, // Statusbar right {text,background,not used but cannot be empty}
[SchemeTagsSel] = { col_gray4, col_cyan, "#000000" }, // Tagbar left selected {text,background,not used but cannot be empty}
[SchemeTagsNorm] = { col_gray3, col_gray1, "#000000" }, // Tagbar left unselected {text,background,not used but cannot be empty}
[SchemeInfoSel] = { col_gray4, col_cyan, "#000000" }, // infobar middle selected {text,background,not used but cannot be empty}
[SchemeInfoNorm] = { col_gray3, col_gray1, "#000000" }, // infobar middle unselected {text,background,not used but cannot be empty}
};
/* tagging */
@ -56,7 +62,8 @@ static const Layout layouts[] = {
#define SHCMD(cmd) { .v = (const char*[]){ "/bin/sh", "-c", cmd, NULL } }
/* commands */
static const char *dmenucmd[] = { "dmenu_run", "-fn", dmenufont, "-nb", col_gray1, "-nf", col_gray3, "-sb", col_cyan, "-sf", col_gray4, NULL };
static char dmenumon[2] = "0"; /* component of dmenucmd, manipulated in spawn() */
static const char *dmenucmd[] = { "dmenu_run", "-m", dmenumon, "-fn", dmenufont, "-nb", col_gray1, "-nf", col_gray3, "-sb", col_cyan, "-sf", col_gray4, NULL };
static const char *termcmd[] = { "st", NULL };
static const Key keys[] = {
@ -112,4 +119,3 @@ static const Button buttons[] = {
{ ClkTagBar, MODKEY, Button1, tag, {0} },
{ ClkTagBar, MODKEY, Button3, toggletag, {0} },
};

2
config.mk
View File

@ -26,7 +26,7 @@ INCS = -I${X11INC} -I${FREETYPEINC}
LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS}
# flags
CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_POSIX_C_SOURCE=200809L -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700L -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
#CFLAGS = -g -std=c99 -pedantic -Wall -O0 ${INCS} ${CPPFLAGS}
CFLAGS = -std=c99 -pedantic -Wall -Wno-deprecated-declarations -Os ${INCS} ${CPPFLAGS}
LDFLAGS = ${LIBS}

87
dwm.c
View File

@ -59,7 +59,7 @@
/* enums */
enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
enum { SchemeNorm, SchemeSel }; /* color schemes */
enum { SchemeNorm, SchemeSel, SchemeStatus, SchemeTagsSel, SchemeTagsNorm, SchemeInfoSel, SchemeInfoNorm }; /* color schemes */
enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
NetWMFullscreen, NetActiveWindow, NetWMWindowType,
NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
@ -205,7 +205,6 @@ static void setmfact(const Arg *arg);
static void setup(void);
static void seturgent(Client *c, int urg);
static void showhide(Client *c);
static void sigchld(int unused);
static void spawn(const Arg *arg);
static void tag(const Arg *arg);
static void tagmon(const Arg *arg);
@ -710,7 +709,7 @@ drawbar(Monitor *m)
/* draw status first so it can be overdrawn by tags later */
if (m == selmon) { /* status is only drawn on selected monitor */
drw_setscheme(drw, scheme[SchemeNorm]);
drw_setscheme(drw, scheme[SchemeStatus]);
tw = TEXTW(stext) - lrpad + 2; /* 2px right padding */
drw_text(drw, m->ww - tw, 0, tw, bh, 0, stext, 0);
}
@ -723,7 +722,7 @@ drawbar(Monitor *m)
x = 0;
for (i = 0; i < LENGTH(tags); i++) {
w = TEXTW(tags[i]);
drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeTagsSel : SchemeTagsNorm]);
drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
if (occ & 1 << i)
drw_rect(drw, x + boxs, boxs, boxw, boxw,
@ -732,17 +731,17 @@ drawbar(Monitor *m)
x += w;
}
w = TEXTW(m->ltsymbol);
drw_setscheme(drw, scheme[SchemeNorm]);
drw_setscheme(drw, scheme[SchemeTagsNorm]);
x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
if ((w = m->ww - tw - x) > bh) {
if (m->sel) {
drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
drw_setscheme(drw, scheme[m == selmon ? SchemeInfoSel : SchemeInfoNorm]);
drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
if (m->sel->isfloating)
drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0);
} else {
drw_setscheme(drw, scheme[SchemeNorm]);
drw_setscheme(drw, scheme[SchemeInfoNorm]);
drw_rect(drw, x, 0, w, bh, 1, 1);
}
}
@ -955,16 +954,26 @@ grabkeys(void)
{
updatenumlockmask();
{
unsigned int i, j;
unsigned int i, j, k;
unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
KeyCode code;
int start, end, skip;
KeySym *syms;
XUngrabKey(dpy, AnyKey, AnyModifier, root);
for (i = 0; i < LENGTH(keys); i++)
if ((code = XKeysymToKeycode(dpy, keys[i].keysym)))
for (j = 0; j < LENGTH(modifiers); j++)
XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
True, GrabModeAsync, GrabModeAsync);
XDisplayKeycodes(dpy, &start, &end);
syms = XGetKeyboardMapping(dpy, start, end - start + 1, &skip);
if (!syms)
return;
for (k = start; k <= end; k++)
for (i = 0; i < LENGTH(keys); i++)
/* skip modifier codes, we do that ourselves */
if (keys[i].keysym == syms[(k - start) * skip])
for (j = 0; j < LENGTH(modifiers); j++)
XGrabKey(dpy, k,
keys[i].mod | modifiers[j],
root, True,
GrabModeAsync, GrabModeAsync);
XFree(syms);
}
}
@ -1533,9 +1542,16 @@ setup(void)
int i;
XSetWindowAttributes wa;
Atom utf8string;
struct sigaction sa;
/* clean up any zombies immediately */
sigchld(0);
/* do not transform children into zombies when they terminate */
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART;
sa.sa_handler = SIG_IGN;
sigaction(SIGCHLD, &sa, NULL);
/* clean up any zombies (inherited from .xinitrc etc) immediately */
while (waitpid(-1, NULL, WNOHANG) > 0);
/* init screen */
screen = DefaultScreen(dpy);
@ -1628,21 +1644,23 @@ showhide(Client *c)
}
}
void
sigchld(int unused)
{
if (signal(SIGCHLD, sigchld) == SIG_ERR)
die("can't install SIGCHLD handler:");
while (0 < waitpid(-1, NULL, WNOHANG));
}
void
spawn(const Arg *arg)
{
struct sigaction sa;
if (arg->v == dmenucmd)
dmenumon[0] = '0' + selmon->num;
if (fork() == 0) {
if (dpy)
close(ConnectionNumber(dpy));
setsid();
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
sa.sa_handler = SIG_DFL;
sigaction(SIGCHLD, &sa, NULL);
execvp(((char **)arg->v)[0], (char **)arg->v);
die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]);
}
@ -1669,7 +1687,7 @@ tagmon(const Arg *arg)
void
tile(Monitor *m)
{
unsigned int i, n, h, mw, my, ty;
unsigned int i, n, h, r, g= 0, mw, my, ty;
Client *c;
for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
@ -1677,20 +1695,23 @@ tile(Monitor *m)
return;
if (n > m->nmaster)
mw = m->nmaster ? m->ww * m->mfact : 0;
mw = m->nmaster ? (m->ww - (g = gappx)) * m->mfact : 0;
else
mw = m->ww;
for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
if (i < m->nmaster) {
h = (m->wh - my) / (MIN(n, m->nmaster) - i);
r = MIN(n, m->nmaster) - i;
h = (m->wh - my - gappx * (r - 1)) / r;
resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0);
if (my + HEIGHT(c) < m->wh)
my += HEIGHT(c);
if (my + HEIGHT(c) + gappx < m->wh)
my += HEIGHT(c) + gappx;
} else {
h = (m->wh - ty) / (n - i);
resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0);
if (ty + HEIGHT(c) < m->wh)
ty += HEIGHT(c);
r = n - i;
h = (m->wh - ty - gappx * (r - 1)) / r;
resize(c, m->wx + mw + g, m->wy + ty, m->ww - mw - g - (2*c->bw), h - (2*c->bw), False);
if (ty + HEIGHT(c) + gappx < m->wh)
ty += HEIGHT(c) + gappx;
}
}