[libadwaita/wip/exalm/expand] button-content: Don't expand icon when a label is visible

[Alexander Mikhaylenko <alexm src gnome org>]

commit e947ca63d57d65ef45383ff4cd65c95c7695ed05
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Sat Sep 11 00:52:07 2021 +0500

    button-content: Don't expand icon when a label is visible
    
    We only want to expand it when there's no label, so it's centered. When
    there's a label, we want to left align it instead.

 src/adw-button-content.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/adw-button-content.c b/src/adw-button-content.c
index 828992ea..c73e102e 100644
--- a/src/adw-button-content.c
+++ b/src/adw-button-content.c
@@ -385,6 +385,7 @@ adw_button_content_set_label (AdwButtonContent *self,
   gtk_label_set_label (GTK_LABEL (self->label), label);
 
   gtk_widget_set_visible (self->label, label[0]);
+  gtk_widget_set_hexpand (self->icon, !label[0]);
 
   g_object_notify_by_pspec (G_OBJECT (self), props[PROP_LABEL]);
 }