From: Carlos Garnacho <carlosg@gnome.org>
Date: Tue, 26 Apr 2022 10:23:09 +0000 (+0200)
Subject: imcontextwayland: Ignore preedit updates from NULL to NULL
X-Git-Tag: archive/raspbian/4.6.5+ds-1+rpi1~1^2~19^2^2~6^2
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=c1895ad8232ac4e0a15139c5a84a60a1b4fd90c0;p=gtk4.git

imcontextwayland: Ignore preedit updates from NULL to NULL

If we get consecutive preedit string updates that announce a NULL
string, we still do end up issuing ::preedit-changed with those.
Ignore changes from NULL to NULL, it is the other combinations which
must issue this signal.

(cherry-picked from commit d6fe6f495a52de47927bf17ce3bc492a971c025f)
---

diff --git a/gtk/gtkimcontextwayland.c b/gtk/gtkimcontextwayland.c
index ea9ed00cfc..069070509a 100644
--- a/gtk/gtkimcontextwayland.c
+++ b/gtk/gtkimcontextwayland.c
@@ -174,6 +174,9 @@ text_input_preedit_apply (GtkIMContextWaylandGlobal *global)
     return;
 
   context = GTK_IM_CONTEXT_WAYLAND (global->current);
+  if (context->pending_preedit.text == NULL &&
+      context->current_preedit.text == NULL)
+    return;
 
   state_change = ((context->pending_preedit.text == NULL)
                  != (context->current_preedit.text == NULL));