4 files changed, 92 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index d8239c0..824b81d 100644
--- a/Makefile
+++ b/Makefile
@@ -7,6 +7,9 @@ BINDIR := $(HOME)/.local/bin/statusbar
 SRCS := $(wildcard $(SRCDIR)/*.c)
 PROGS := $(patsubst $(SRCDIR)/%.c,$(BINDIR)/%,$(SRCS))
 
+NOTIFY_CFLAGS := $(shell pkg-config --cflags libnotify)
+NOTIFY_LIBS   := $(shell pkg-config --libs libnotify)
+
 .PHONY: all clean
 
 all: $(BINDIR) $(PROGS)
@@ -27,7 +30,7 @@ $(BINDIR)/stweath: $(SRCDIR)/stweath.c | $(BINDIR)
 	$(CC) $(CFLAGS) -o $@ lib/util.c lib/cjson/cJSON.c $< -lcurl
 
 $(BINDIR)/%: $(SRCDIR)/%.c | $(BINDIR)
-	$(CC) $(CFLAGS) -o $@ lib/util.c $<
+	$(CC) $(CFLAGS) $(NOTIFY_CFLAGS) -o $@ lib/util.c $< $(NOTIFY_LIBS)
 
 clean:
 	rm -f $(PROGS)
diff --git a/lib/util.c b/lib/util.c
index 1fe30da..0c22adf 100644
--- a/lib/util.c
+++ b/lib/util.c
@@ -2,6 +2,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <libnotify/notify.h>
 
 #include "util.h"
 
@@ -23,3 +24,48 @@ die(const char *fmt, ...)
 
   exit(1);
 }
+
+void
+sendnotif(const char *appname, const char *title, const char *body)
+{
+  notify_init(appname);
+
+  NotifyNotification *n;
+  n = notify_notification_new(title, body, NULL);
+
+  notify_notification_show(n, NULL);
+
+  g_object_unref(G_OBJECT(n));
+  notify_uninit();
+}
+
+int
+getbtnint(const char *blkbtn)
+{
+  char *endptr;
+  int errno;
+  long val;
+
+  errno = 0;
+
+  if (blkbtn == NULL)
+    return 0;
+
+  val = strtol(blkbtn, &endptr, 10);
+
+  if (errno == 0 && *endptr == '\0' && val >= 1 && val <= 8)
+    return (int)val;
+
+  return 0;
+}
+
+void
+spawn(const char *const argv[])
+{
+	if (fork() == 0) {
+		dup2(STDERR_FILENO, STDOUT_FILENO);
+		setsid();
+		execvp(argv[0], (char * const *)argv);
+		die("spawn %s failed:", (argv)[0]);
+	}
+}
diff --git a/lib/util.h b/lib/util.h
index 9ecc499..84c5d36 100644
--- a/lib/util.h
+++ b/lib/util.h
@@ -1 +1,4 @@
 void die(const char *, ...);
+void sendnotif(const char *, const char *, const char *);
+int getbtnint(const char *blkbtn);
+void spawn(const char *const argv[]);
diff --git a/src/stclock.c b/src/stclock.c
index 22dae6a..ef63fe6 100644
--- a/src/stclock.c
+++ b/src/stclock.c
@@ -14,17 +14,56 @@
    License along with stclock. If not, see
    <https://www.gnu.org/licenses/>. */
 
+#include <stdlib.h>
 #include <time.h>
 #include <stdio.h>
 
 #include "../lib/util.h"
 
+void
+buttonhandler()
+{
+  char *term;
+  char *env;
+  int button;
+
+  button = 0;
+  if ((env = getenv("BLOCK_BUTTON")))
+    button = getbtnint(env);
+
+
+  if (!(term = getenv("TERMINAL")))
+    term = "footclient";
+
+  const char *termcmd[] = { term, "-e", "calcurse", NULL };
+
+  switch (button) {
+    case 1:
+      sendnotif("stclock", "This Month",
+                "there should be calendar but you know how we doing");
+      break;
+    case 2:
+      spawn(termcmd);
+      break;
+    case 3:
+      sendnotif("stclock", " Time/date module",
+                "- Left click to show upcoming \
+appointments for the next three days\
+via `calcurse -d3` and show the month via `cal`\n\
+- Middle click opens calcurse if installed");
+      break;
+    default: break;
+  }
+}
+
 int
 main(void)
 {
   time_t t;
   char buf[64];
 
+  buttonhandler();
+
   t = time(NULL);
   if (!strftime(buf, sizeof(buf), "%F %T", localtime(&t)))
     die("strftime: Result string exceeds buffer size");