From 86cd5c04bdd4aa2cfe4ecd4cce505d23e4d09d76 Mon Sep 17 00:00:00 2001
From: Peter Bloomfield <PeterBloomfield@bellsouth.net>
Date: Mon, 12 Mar 2018 17:46:57 -0400
Subject: [PATCH] gtkimmodule: make match_backend() query
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…the wayland registry.

Wnen _gtk_im_module_get_default_context_id calls
match_backend (context_id) and the default GdkDisplay
is wayland, match_backend() should return TRUE only if
gdk_wayland_display_query_registry (display, "gtk_text_input_manager")
returns TRUE.
---
 gtk/gtkimmodule.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/gtk/gtkimmodule.c b/gtk/gtkimmodule.c
index 0c99553423..bdf956dd63 100644
--- a/gtk/gtkimmodule.c
+++ b/gtk/gtkimmodule.c
@@ -119,7 +119,13 @@ match_backend (const char *context_id)
 {
 #ifdef GDK_WINDOWING_WAYLAND
   if (g_strcmp0 (context_id, "wayland") == 0)
-    return GDK_IS_WAYLAND_DISPLAY (gdk_display_get_default ());
+    {
+      GdkDisplay *display = gdk_display_get_default ();
+
+      return GDK_IS_WAYLAND_DISPLAY (display) &&
+             gdk_wayland_display_query_registry (display,
+                                                 "gtk_text_input_manager");
+    }
 #endif
 
 #ifdef GDK_WINDOWING_BROADWAY