[gtk/gtk-3-24: 7/9] gtktextview: Also reset IM context after IM surrounding text deletion

[Carlos Garnacho <carlosg src gnome org>]

commit a88e848306acba018e2bd1c5d9c74bcf6e33eb7f
Author: Carlos Garnacho <carlosg gnome org>
Date:   Tue Sep 6 21:55:13 2022 +0200

    gtktextview: Also reset IM context after IM surrounding text deletion
    
    When the IM commands the GtkText to delete text, the cursor position
    would change, and so would the surrounding text. Reset the IM context
    so that these updates are properly picked up by the IM.
    
    Fixes backspace key behavior in the GNOME Shell OSK, since that relies
    on the surrounding text being properly updated for the next iteration.

 gtk/gtktextview.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtktextview.c b/gtk/gtktextview.c
index 57dd199e2e..e6b4d0aa85 100644
--- a/gtk/gtktextview.c
+++ b/gtk/gtktextview.c
@@ -9240,8 +9240,9 @@ gtk_text_view_delete_surrounding_handler (GtkIMContext  *context,
   gtk_text_iter_forward_chars (&start, offset);
   gtk_text_iter_forward_chars (&end, offset + n_chars);
 
-  gtk_text_buffer_delete_interactive (priv->buffer, &start, &end,
-                                     priv->editable);
+  if (gtk_text_buffer_delete_interactive (priv->buffer, &start, &end,
+                                         priv->editable))
+    gtk_im_context_reset (context);
 
   return TRUE;
 }