Detect focus changes and send FOCUS to the server.

git-svn-id: svn://svn.code.sf.net/p/rdesktop/code/branches/seamlessrdp-branch/rdesktop@1153 423420c4-83ab-492f-b58f-81f9feb106b5

proto.h

@@ -289,6 +289,7 @@ BOOL seamless_init(void);
 void seamless_send_sync(void);
 void seamless_send_state(unsigned long id, unsigned int state, unsigned long flags);
 void seamless_send_zchange(unsigned long id, unsigned long below, unsigned long flags);
+void seamless_send_focus(unsigned long id, unsigned long flags);
 
 /* *INDENT-OFF* */
 #ifdef __cplusplus

seamless.c

@@ -347,3 +347,13 @@ seamless_send_zchange(unsigned long id, unsigned long below, unsigned long flags
 
 	seamless_send("ZCHANGE,0x%08lx,0x%08lx,0x%lx\n", id, below, flags);
 }
+
+
+void
+seamless_send_focus(unsigned long id, unsigned long flags)
+{
+	if (!g_seamless_rdp)
+		return;
+
+	seamless_send("FOCUS,0x%08lx,0x%lx\n", id, flags);
+}

xwin.c

@@ -1912,6 +1912,12 @@ xwin_process_events(void)
 				if (g_grab_keyboard && g_mouse_in_wnd)
 					XGrabKeyboard(g_display, g_wnd, True,
 						      GrabModeAsync, GrabModeAsync, CurrentTime);
+
+				sw = seamless_get_window_by_wnd(xevent.xfocus.window);
+				if (!sw)
+					break;
+
+				seamless_send_focus(sw->id, 0);
 				break;
 
 			case FocusOut: