Support startup-notification in i3-nagbar & i3-config-wizard

The default i3 config uses the `exec` command without `--no-startup-id`
to launch:
1. i3-nagbar
https://github.com/i3/i3/blob/4cba9fcbdab1487459014dbf8882f5f34e61435e/etc/config#L150
2. i3-config-wizard
https://github.com/i3/i3/blob/4cba9fcbdab1487459014dbf8882f5f34e61435e/etc/config#L194

A user that opens i3 for the first time will be greeted with a "loading"
cursor because of i3-config-wizard.

1 files changed, 13 insertions, 0 deletions

diff --git a/i3-config-wizard/main.c b/i3-config-wizard/main.c
index 0e0a3e65..013d1053 100644
--- a/i3-config-wizard/main.c
+++ b/i3-config-wizard/main.c
@@ -48,6 +48,9 @@
 #include <xkbcommon/xkbcommon.h>
 #include <xkbcommon/xkbcommon-x11.h>
 
+#define SN_API_NOT_YET_FROZEN 1
+#include <libsn/sn-launchee.h>
+
 #include <X11/Xlib.h>
 #include <X11/keysym.h>
 #include <X11/XKBlib.h>
@@ -847,6 +850,10 @@ int main(int argc, char *argv[]) {
 #include "atoms.xmacro"
 #undef xmacro
 
+    /* Init startup notification. */
+    SnDisplay *sndisplay = sn_xcb_display_new(conn, NULL, NULL);
+    SnLauncheeContext *sncontext = sn_launchee_context_new_from_environment(sndisplay, screen);
+
     root_screen = xcb_aux_get_screen(conn, screen);
     root = root_screen->root;
 
@@ -879,6 +886,7 @@ int main(int argc, char *argv[]) {
             0, /* back pixel: black */
             XCB_EVENT_MASK_EXPOSURE |
                 XCB_EVENT_MASK_BUTTON_PRESS});
+    sn_launchee_context_setup_window(sncontext, win);
 
     /* Map the window (make it visible) */
     xcb_map_window(conn, win);
@@ -940,6 +948,11 @@ int main(int argc, char *argv[]) {
         exit(-1);
     }
 
+    /* Startup complete. */
+    sn_launchee_context_complete(sncontext);
+    sn_launchee_context_unref(sncontext);
+    sn_display_unref(sndisplay);
+
     xcb_flush(conn);
 
     xcb_generic_event_t *event;