[gnome-builder] editor: allow clearing saved cursor position

[Christian Hergert <chergert src gnome org>]

commit 77c0c1dcd1e334df3fd09e313e9f1185240df492
Author: Christian Hergert <christian hergert me>
Date:   Thu Jan 22 13:56:24 2015 -0800

    editor: allow clearing saved cursor position
    
    Calling this will prevent jumping back to the previous position.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=743357

 src/editor/gb-source-view.c |   16 ++++++++++++++--
 src/editor/gb-source-view.h |    1 +
 2 files changed, 15 insertions(+), 2 deletions(-)
---
diff --git a/src/editor/gb-source-view.c b/src/editor/gb-source-view.c
index 58c6fb7..29546ad 100644
--- a/src/editor/gb-source-view.c
+++ b/src/editor/gb-source-view.c
@@ -2030,6 +2030,15 @@ gb_source_view_drag_data_received (GtkWidget        *widget,
     }
 }
 
+void
+gb_source_view_clear_saved_cursor (GbSourceView *view)
+{
+  g_return_if_fail (GB_IS_SOURCE_VIEW (view));
+
+  view->priv->saved_line = -1;
+  view->priv->saved_line_offset = -1;
+}
+
 static void
 gb_source_view_save_cursor (GbSourceView *view)
 {
@@ -2059,12 +2068,15 @@ gb_source_view_restore_cursor (GbSourceView *view)
 
   priv = view->priv;
 
+  if (priv->saved_line == -1 || priv->saved_line_offset == -1)
+    return;
+
   buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
   insert = gtk_text_buffer_get_insert (buffer);
   gtk_text_buffer_get_iter_at_mark (buffer, &iter, insert);
 
-  if ((view->priv->saved_line == gtk_text_iter_get_line (&iter)) &&
-      (view->priv->saved_line_offset == gtk_text_iter_get_line_offset (&iter)))
+  if ((priv->saved_line == gtk_text_iter_get_line (&iter)) &&
+      (priv->saved_line_offset == gtk_text_iter_get_line_offset (&iter)))
     return;
 
   if (gb_gtk_text_buffer_get_iter_at_line_and_offset (buffer, &iter,
diff --git a/src/editor/gb-source-view.h b/src/editor/gb-source-view.h
index d1be242..c4a2869 100644
--- a/src/editor/gb-source-view.h
+++ b/src/editor/gb-source-view.h
@@ -74,6 +74,7 @@ void                  gb_source_view_begin_search         (GbSourceView
                                                            GtkDirectionType      direction,
                                                            const gchar          *search_text);
 void                  gb_source_view_clear_snippets       (GbSourceView         *view);
+void                  gb_source_view_clear_saved_cursor   (GbSourceView         *view);
 GbSourceAutoIndenter *gb_source_view_get_auto_indenter    (GbSourceView         *view);
 gboolean              gb_source_view_get_overwrite_braces (GbSourceView         *view);
 gboolean              gb_source_view_get_show_shadow      (GbSourceView         *view);