M src/server.c → src/server.c

@@ -73,6 +73,7 @@ server.atom._NET_WM_STRUT_PARTIAL = XInternAtom (server.dsp, "_NET_WM_STRUT_PARTIAL", False);
 	server.atom.WM_NAME = XInternAtom(server.dsp, "WM_NAME", False);
 	server.atom.__SWM_VROOT = XInternAtom(server.dsp, "__SWM_VROOT", False);
 	server.atom._MOTIF_WM_HINTS = XInternAtom(server.dsp, "_MOTIF_WM_HINTS", False);
+	server.atom.WM_HINTS = XInternAtom(server.dsp, "WM_HINTS", False);
 
 	// systray protocol
 	name_trayer = g_strdup_printf("_NET_SYSTEM_TRAY_S%d", DefaultScreen(server.dsp));

M src/server.h → src/server.h

@@ -55,6 +55,7 @@ Atom _NET_WM_STRUT_PARTIAL;
 	Atom WM_NAME;
 	Atom __SWM_VROOT;
 	Atom _MOTIF_WM_HINTS;
+	Atom WM_HINTS;
 	Atom _NET_SYSTEM_TRAY_SCREEN;
 	Atom _NET_SYSTEM_TRAY_OPCODE;
 	Atom MANAGER;

M src/tint.c → src/tint.c

@@ -581,6 +581,15 @@ }
 				panel_refresh = 1;
 			}
 		}
+		else if (at == server.atom.WM_HINTS) {
+			XWMHints* wmhints = XGetWMHints(server.dsp, win);
+			if (wmhints->flags & XUrgencyHint) {
+				task_urgent = tsk;
+				tick_urgent = 0;
+				time_precision = 1;
+			}
+			XFree(wmhints);
+		}
 
 		if (!server.got_root_win) server.root_win = RootWindow (server.dsp, server.screen);
 	}