[polari] serverRoomManager: Don't use get_text_length()

[Marge Bot <marge-bot src gnome org>]

commit 4d42e51681bb713df1830208bb528e2feae0a427
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Aug 19 01:34:30 2021 +0200

    serverRoomManager: Don't use get_text_length()
    
    In GTK4, SearchEntry no longer inherits from Entry. It still implements
    GtkEditable though, which is where GTK4 moved the get_text() method.
    
    Part-of: <https://gitlab.gnome.org/GNOME/polari/-/merge_requests/225>

 src/serverRoomManager.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/serverRoomManager.js b/src/serverRoomManager.js
index f6b4b985..a8dd37be 100644
--- a/src/serverRoomManager.js
+++ b/src/serverRoomManager.js
@@ -158,7 +158,7 @@ export const ServerRoomList = GObject.registerClass({
             this._updateSelection();
         });
         this._filterEntry.connect('stop-search', () => {
-            if (this._filterEntry.get_text_length() > 0)
+            if (this._filterEntry.get_text().length > 0)
                 this._filterEntry.set_text('');
             else if (this.get_toplevel() instanceof Gtk.Dialog)
                 this.get_toplevel().response(Gtk.ResponseType.CANCEL);