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danbyl/dwm-statuscmd-signal-6.2.diff Secret

Last active Jul 26, 2020
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dwm and dwmblocks patch for clickable bar - https://dwm.suckless.org/patches/statuscmd/
diff --git a/config.def.h b/config.def.h
index 1c0b587..b67825e 100644
--- a/config.def.h
+++ b/config.def.h
@@ -103,7 +103,9 @@ static Button buttons[] = {
{ ClkLtSymbol, 0, Button1, setlayout, {0} },
{ ClkLtSymbol, 0, Button3, setlayout, {.v = &layouts[2]} },
{ ClkWinTitle, 0, Button2, zoom, {0} },
- { ClkStatusText, 0, Button2, spawn, {.v = termcmd } },
+ { ClkStatusText, 0, Button1, sigdwmblocks, {.i = 1} },
+ { ClkStatusText, 0, Button2, sigdwmblocks, {.i = 2} },
+ { ClkStatusText, 0, Button3, sigdwmblocks, {.i = 3} },
{ ClkClientWin, MODKEY, Button1, movemouse, {0} },
{ ClkClientWin, MODKEY, Button2, togglefloating, {0} },
{ ClkClientWin, MODKEY, Button3, resizemouse, {0} },
diff --git a/dwm.c b/dwm.c
index 4465af1..c600131 100644
--- a/dwm.c
+++ b/dwm.c
@@ -156,6 +156,7 @@ static void clientmessage(XEvent *e);
static void configure(Client *c);
static void configurenotify(XEvent *e);
static void configurerequest(XEvent *e);
+static void copyvalidchars(char *text, char *rawtext);
static Monitor *createmon(void);
static void destroynotify(XEvent *e);
static void detach(Client *c);
@@ -169,6 +170,7 @@ static void focus(Client *c);
static void focusin(XEvent *e);
static void focusmon(const Arg *arg);
static void focusstack(const Arg *arg);
+static int getdwmblockspid();
static int getrootptr(int *x, int *y);
static long getstate(Window w);
static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
@@ -205,6 +207,7 @@ static void setup(void);
static void seturgent(Client *c, int urg);
static void showhide(Client *c);
static void sigchld(int unused);
+static void sigdwmblocks(const Arg *arg);
static void spawn(const Arg *arg);
static void tag(const Arg *arg);
static void tagmon(const Arg *arg);
@@ -237,6 +240,9 @@ static void zoom(const Arg *arg);
/* variables */
static const char broken[] = "broken";
static char stext[256];
+static char rawstext[256];
+static int dwmblockssig;
+pid_t dwmblockspid = 0;
static int screen;
static int sw, sh; /* X display screen geometry width, height */
static int bh, blw = 0; /* bar geometry */
@@ -439,9 +445,26 @@ buttonpress(XEvent *e)
arg.ui = 1 << i;
} else if (ev->x < x + blw)
click = ClkLtSymbol;
- else if (ev->x > selmon->ww - TEXTW(stext))
+ else if (ev->x > (x = selmon->ww - TEXTW(stext) + lrpad)) {
click = ClkStatusText;
- else
+
+ char *text = rawstext;
+ int i = -1;
+ char ch;
+ dwmblockssig = 0;
+ while (text[++i]) {
+ if ((unsigned char)text[i] < ' ') {
+ ch = text[i];
+ text[i] = '\0';
+ x += TEXTW(text) - lrpad;
+ text[i] = ch;
+ text += i+1;
+ i = -1;
+ if (x >= ev->x) break;
+ dwmblockssig = ch;
+ }
+ }
+ } else
click = ClkWinTitle;
} else if ((c = wintoclient(ev->window))) {
focus(c);
@@ -627,6 +650,19 @@ configurerequest(XEvent *e)
XSync(dpy, False);
}
+void
+copyvalidchars(char *text, char *rawtext)
+{
+ int i = -1, j = 0;
+
+ while(rawtext[++i]) {
+ if ((unsigned char)rawtext[i] >= ' ') {
+ text[j++] = rawtext[i];
+ }
+ }
+ text[j] = '\0';
+}
+
Monitor *
createmon(void)
{
@@ -871,6 +907,18 @@ getatomprop(Client *c, Atom prop)
return atom;
}
+int
+getdwmblockspid()
+{
+ char buf[16];
+ FILE *fp = popen("pidof -s dwmblocks", "r");
+ fgets(buf, sizeof(buf), fp);
+ pid_t pid = strtoul(buf, NULL, 10);
+ pclose(fp);
+ dwmblockspid = pid;
+ return pid != 0 ? 0 : -1;
+}
+
int
getrootptr(int *x, int *y)
{
@@ -1636,6 +1684,23 @@ sigchld(int unused)
while (0 < waitpid(-1, NULL, WNOHANG));
}
+void
+sigdwmblocks(const Arg *arg)
+{
+ union sigval sv;
+ sv.sival_int = (dwmblockssig << 8) | arg->i;
+ if (!dwmblockspid)
+ if (getdwmblockspid() == -1)
+ return;
+
+ if (sigqueue(dwmblockspid, SIGUSR1, sv) == -1) {
+ if (errno == ESRCH) {
+ if (!getdwmblockspid())
+ sigqueue(dwmblockspid, SIGUSR1, sv);
+ }
+ }
+}
+
void
spawn(const Arg *arg)
{
@@ -1987,8 +2052,10 @@ updatesizehints(Client *c)
void
updatestatus(void)
{
- if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
+ if (!gettextprop(root, XA_WM_NAME, rawstext, sizeof(rawstext)))
strcpy(stext, "dwm-"VERSION);
+ else
+ copyvalidchars(stext, rawstext);
drawbar(selmon);
}
diff --git a/dwmblocks.c b/dwmblocks.c
index 2f3b774..ba7dbb5 100644
--- a/dwmblocks.c
+++ b/dwmblocks.c
@@ -14,6 +14,7 @@ typedef struct {
unsigned int signal;
} Block;
void sighandler(int num);
+void buttonhandler(int sig, siginfo_t *si, void *ucontext);
void getcmds(int time);
#ifndef __OpenBSD__
void getsigcmds(int signal);
@@ -33,15 +34,32 @@ static int screen;
static Window root;
static char statusbar[LENGTH(blocks)][CMDLENGTH] = {0};
static char statusstr[2][256];
+static char button[] = "\0";
static int statusContinue = 1;
static void (*writestatus) () = setroot;
//opens process *cmd and stores output in *output
void getcmd(const Block *block, char *output)
{
+ if (block->signal)
+ {
+ output[0] = block->signal;
+ output++;
+ }
strcpy(output, block->icon);
char *cmd = block->command;
- FILE *cmdf = popen(cmd,"r");
+ FILE *cmdf;
+ if (*button)
+ {
+ setenv("BUTTON", button, 1);
+ cmdf = popen(cmd,"r");
+ *button = '\0';
+ unsetenv("BUTTON");
+ }
+ else
+ {
+ cmdf = popen(cmd,"r");
+ }
if (!cmdf)
return;
char c;
@@ -79,12 +97,18 @@ void getsigcmds(int signal)
void setupsignals()
{
+ struct sigaction sa;
for(int i = 0; i < LENGTH(blocks); i++)
{
if (blocks[i].signal > 0)
+ {
signal(SIGRTMIN+blocks[i].signal, sighandler);
+ sigaddset(&sa.sa_mask, SIGRTMIN+blocks[i].signal); // ignore signal when handling SIGUSR1
+ }
}
-
+ sa.sa_sigaction = buttonhandler;
+ sa.sa_flags = SA_SIGINFO;
+ sigaction(SIGUSR1, &sa, NULL);
}
#endif
@@ -143,6 +167,13 @@ void sighandler(int signum)
getsigcmds(signum-SIGRTMIN);
writestatus();
}
+
+void buttonhandler(int sig, siginfo_t *si, void *ucontext)
+{
+ *button = '0' + si->si_value.sival_int & 0xff;
+ getsigcmds(si->si_value.sival_int >> 8);
+ writestatus();
+}
#endif
void termhandler(int signum)
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