First iteration

1 files changed, 177 insertions, 0 deletions

diff --git a/mktrayicon.c b/mktrayicon.c
new file mode 100644
index 0000000..d19f80a
--- /dev/null
+++ b/mktrayicon.c
@@ -0,0 +1,177 @@
+/*
+ * @author Jon Gjengset <jon@tsp.io>
+ * @see http://blog.sacaluta.com/2007/08/gtk-system-tray-icon-example.html
+ */
+#include <gtk/gtk.h>
+#include <glib.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <pthread.h>
+#include <sys/stat.h>
+
+GtkStatusIcon *icon;
+char *onclick = NULL;
+
+void tray_icon_on_click(GtkStatusIcon *status_icon, 
+			gpointer user_data)
+{
+	if (onclick != NULL && fork() == 0) {
+		execl("/bin/sh", "sh", "-c", onclick, (char *) NULL);
+	}
+}
+
+void tray_icon_on_menu(GtkStatusIcon *status_icon, guint button, 
+		       guint activate_time, gpointer user_data)
+{
+	printf("Popup menu\n");
+}
+
+gboolean set_tooltip(gpointer data)
+{
+	char *p = (char*)data;
+	printf("Setting tooltip to '%s'\n", p);
+	gtk_status_icon_set_tooltip_text(icon, p);
+	return FALSE;
+}
+
+gboolean set_icon(gpointer data)
+{
+	char *p = (char*)data;
+	printf("Setting icon to '%s'\n", p);
+	gtk_status_icon_set_from_icon_name(icon, p);
+	return FALSE;
+}
+
+gboolean set_visible(gpointer data)
+{
+	gtk_status_icon_set_visible(icon, data == 0 ? FALSE : TRUE);
+	return FALSE;
+}
+
+gboolean do_quit(gpointer data)
+{
+	gtk_main_quit();
+	return FALSE;
+}
+
+void *watch_fifo(void *argv)
+{
+	char *buf = malloc(1024*sizeof(char));
+	char *param;
+	char *read;
+	size_t len;
+	char *fifo_path = (char*)argv;
+	FILE *fifo;
+	struct stat fifo_st;   
+
+	while (1) {
+		if (stat(fifo_path, &fifo_st) != 0) {
+			perror("FIFO does not exist, exiting\n");
+			g_main_context_invoke(NULL, do_quit, fifo);
+		}
+
+		fifo = fopen(fifo_path, "r");
+
+		if (fifo == NULL) {
+			perror("FIFO went away, exiting\n");
+			g_main_context_invoke(NULL, do_quit, fifo);
+		}
+
+		read = fgets(buf, 1024 * sizeof(char), fifo);
+
+		if (read == NULL || *buf == '\n') {
+			fprintf(stderr, "No data in pipe - did you send a command?\n");
+			continue;
+		}
+
+		/* get rid of trailing newline */
+		len = strlen(buf);
+		buf[len-1] = '\0';
+		len -= 1;
+
+		/* only read from this if you *know* there are more arguments */
+		param = buf + 2;
+
+		switch (*buf) {
+		case 'q':
+			g_main_context_invoke(NULL, do_quit, param);
+			break;
+		case 't': /* tooltip */
+			g_main_context_invoke(NULL, set_tooltip, param);
+			break;
+		case 'i': /* icon */
+			g_main_context_invoke(NULL, set_icon, param);
+			break;
+		case 'h': /* hide */
+			g_main_context_invoke(NULL, set_visible, (void *)0);
+			break;
+		case 's': /* show */
+			g_main_context_invoke(NULL, set_visible, (void *)1);
+			break;
+		case 'c': /* click */
+			if (onclick != NULL) {
+				free(onclick);
+				onclick = NULL;
+			}
+
+			if (len < 3) {
+				printf("Removing onclick handler\n");
+				break;
+			}
+
+			onclick = malloc((len-2+1) * sizeof(char));
+			strncpy(onclick, param, len-2+1);
+			printf("Setting onclick handler to '%s'\n", onclick);
+			break;
+		case 'm': /* menu */
+			fprintf(stderr, "Menu command not yet implemented\n");
+			break;
+		default:
+			fprintf(stderr, "Unknown command: '%c'\n", *buf);
+		}
+
+		gdk_flush();
+	}
+	return NULL;
+}
+
+static GtkStatusIcon *create_tray_icon(char *start_icon)
+{
+	GtkStatusIcon *tray_icon;
+
+	tray_icon = gtk_status_icon_new_from_icon_name(start_icon);
+	g_signal_connect(G_OBJECT(tray_icon), "activate",
+			 G_CALLBACK(tray_icon_on_click), NULL);
+	g_signal_connect(G_OBJECT(tray_icon),
+			 "popup-menu",
+			 G_CALLBACK(tray_icon_on_menu), NULL);
+	gtk_status_icon_set_visible(tray_icon, TRUE);
+
+	return tray_icon;
+}
+
+int main(int argc, char **argv)
+{
+	char *start_icon = "image-missing";
+	char *app = argv[0];
+	FILE *fifo;
+	pthread_t reader;
+
+	gtk_init(&argc, &argv);
+
+	if (argc == 4 && strcmp(argv[1], "-i") == 0) {
+	  start_icon = argv[2];
+	}
+
+	if (argc == 1) {
+	  /* usage */
+	  return 0;
+	}
+
+	icon = create_tray_icon(start_icon);
+	pthread_create(&reader, NULL, watch_fifo, argv[argc-1]);
+	gtk_main();
+	return 0;
+}