Added preliminary implementation of the "urgent" plugin

which controls the X Window "urgency" hint on Tkabber
chat windows.
See http://www.jabber.ru/bugzilla/show_bug.cgi?id=389


git-svn-id: http://svn.xmpp.ru/repos/tkabber-3rd-party/trunk/plugins/urgent@166 cc602e41-bd33-0410-9637-a208f32f1443

1 files changed, 103 insertions, 0 deletions

diff --git a/urgent.c b/urgent.c
new file mode 100644
index 0000000..42f01ad
--- /dev/null
+++ b/urgent.c
@@ -0,0 +1,103 @@
+/*
+ * $Id$
+ *
+ * Compile with
+ *     gcc -L/usr/X11R6/lib -lX11 urgent.c -o urgent
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+
+typedef long (*FLAGMANIP) (long);
+
+static long set_urgency(long flags)
+{
+	return flags | XUrgencyHint;
+}
+
+static long clear_urgency(long flags)
+{
+	return flags & ~XUrgencyHint;
+}
+
+static long toggle_urgency(long flags)
+{
+	if ((flags & XUrgencyHint) == 0) {
+		return set_urgency(flags);
+	} else {
+		return clear_urgency(flags);
+	}
+}
+
+static int apply(Display *dpy, Window id, FLAGMANIP f)
+{
+	XWMHints *hints = XGetWMHints(dpy, id);
+
+	if (hints == NULL)
+		return 0;
+
+	hints->flags = f(hints->flags);
+
+	return (XSetWMHints(dpy, id, hints) != 0);
+}
+
+int main(int argc, char *argv[])
+{
+	const char helpstr[] = "Usage: urgent {-set|-clear|-toggle} XWINID\n";
+	Display *dpy;
+	Window id;
+	FLAGMANIP action;
+
+	if (argc == 2 && strcmp(argv[1], "-help") == 0) {
+		printf("Sets, clears or toggles the \"urgency\" flag "
+			"for a specified X window using its WM_HINTS property\n");
+		printf(helpstr);
+		return EXIT_SUCCESS;
+	}
+
+	if (argc != 3) {
+		fprintf(stderr, "Wrong number of agruments\n");
+		fprintf(stderr, helpstr);
+		return EXIT_FAILURE;
+	}
+
+	if (strcmp(argv[1], "-set") == 0) {
+		action = set_urgency;
+	} else if (strcmp(argv[1], "-clear") == 0) {
+		action = clear_urgency;
+	} else if (strcmp(argv[1], "-toggle") == 0) {
+		action = toggle_urgency;
+	} else {
+		fprintf(stderr, "Invalid action \"%s\", "
+			"must be one of -set, -clear or -toggle\n", argv[1]);
+		return EXIT_FAILURE;
+	}
+
+	errno = 0;
+	id = strtol(argv[2], NULL, 16);
+	if (errno != 0) {
+		fprintf(stderr, "Invalid X window id \"%s\", "
+			"must be a hexadecimal integer\n", argv[2]);
+		return EXIT_FAILURE;
+	}
+
+	dpy = XOpenDisplay(NULL);
+
+	if (dpy == NULL) {
+		fprintf(stderr, "Unable to open display.");
+		return EXIT_FAILURE;
+	}
+
+	apply(dpy, id, action);
+
+	XFlush(dpy);
+
+	XCloseDisplay(dpy);
+
+	return EXIT_SUCCESS;
+}
+