From 552dd36c2c012642643cba5692cb90c2300e4dd2 Mon Sep 17 00:00:00 2001
From: Michael Webster <miketwebster@gmail.com>
Date: Tue, 20 Jun 2017 11:20:35 +0200
Subject: Fix prompt display in gtk3 > 3.20 (ported from slick-greeter)

---
 configure.ac          | 10 ++++++++++
 src/Makefile.am       |  1 +
 src/greeter-list.vala |  4 ++++
 3 files changed, 15 insertions(+)

diff --git a/configure.ac b/configure.ac
index 9176db7..2b20692 100644
--- a/configure.ac
+++ b/configure.ac
@@ -66,6 +66,16 @@ GETTEXT_PACKAGE=arctica-greeter
 AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE, "$GETTEXT_PACKAGE", Gettext package)
 AC_SUBST(GETTEXT_PACKAGE)
 
+dnl ###########################################################################
+dnl Check for GTK version - 3.20
+dnl ###########################################################################
+
+PKG_CHECK_MODULES(GTK_3_20_0, gtk+-3.0 >= 3.20.0 , gtk_check_pass=yes, gtk_check_pass=no)
+if test x$gtk_check_pass = xyes ; then
+  AM_VALAFLAGS="$AM_VALAFLAGS -D HAVE_GTK_3_20_0"
+  AC_SUBST([AM_VALAFLAGS])
+fi
+
 dnl ###########################################################################
 dnl Files to generate
 dnl ###########################################################################
diff --git a/src/Makefile.am b/src/Makefile.am
index 1fcefc7..ec75868 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -51,6 +51,7 @@ arctica_greeter_CFLAGS = \
 logo_generator_CFLAGS = $(arctica_greeter_CFLAGS)
 
 arctica_greeter_VALAFLAGS = \
+	$(AM_VALAFLAGS) \
 	--debug \
 	--pkg posix \
 	--pkg gtk+-3.0 \
diff --git a/src/greeter-list.vala b/src/greeter-list.vala
index 4734ab1..17d80a8 100644
--- a/src/greeter-list.vala
+++ b/src/greeter-list.vala
@@ -626,6 +626,10 @@ public abstract class GreeterList : FadableBox
         focus_prompt ();
         entry_displayed_done ();
         mode = Mode.ENTRY;
+
+#if HAVE_GTK_3_20_0
+        queue_allocate ();
+#endif
     }
 
     protected void select_entry (PromptBox entry, double direction, bool do_scroll = true)
-- 
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