[gtksourceview/wip/chergert/vim] walk up chain to get view

[Christian Hergert <chergert src gnome org>]

commit 690e98486543f2d209f0f74b2132c2b264bbd0fa
Author: Christian Hergert <chergert redhat com>
Date:   Mon Nov 1 09:11:38 2021 -0700

    walk up chain to get view
    
    this can happen with some motion/visual/delete combinations and replay

 gtksourceview/vim/gtk-source-vim-state.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/gtksourceview/vim/gtk-source-vim-state.c b/gtksourceview/vim/gtk-source-vim-state.c
index aa17f49b..86067bc3 100644
--- a/gtksourceview/vim/gtk-source-vim-state.c
+++ b/gtksourceview/vim/gtk-source-vim-state.c
@@ -539,7 +539,7 @@ gtk_source_vim_state_select (GtkSourceVimState *self,
                              const GtkTextIter *insert,
                              const GtkTextIter *selection)
 {
-       GtkSourceVimStatePrivate *priv = gtk_source_vim_state_get_instance_private (self);
+       GtkSourceView *view;
        GtkTextBuffer *buffer;
 
        g_return_if_fail (GTK_SOURCE_IS_VIM_STATE (self));
@@ -548,7 +548,12 @@ gtk_source_vim_state_select (GtkSourceVimState *self,
        if (selection == NULL)
                selection = insert;
 
-       buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->view));
+       view = gtk_source_vim_state_get_view (self);
+       g_return_if_fail (GTK_SOURCE_IS_VIEW (view));
+
+       buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
+       g_return_if_fail (GTK_SOURCE_IS_BUFFER (buffer));
+
        gtk_text_buffer_select_range (buffer, insert, selection);
 }