tab: restore the cursor and scroll in an idle.

Fix bug where the document doesn't always scroll to the restored cursor position.
The reason for this is that after the doc is loaded the text view is still working relocating
so we wait until the text view gives us some priority to actually scroll.

1 files changed, 24 insertions, 2 deletions

diff --git a/pluma/pluma-tab.c b/pluma/pluma-tab.c
index 723dfaf1..e735696d 100644
--- a/pluma/pluma-tab.c
+++ b/pluma/pluma-tab.c
@@ -84,6 +84,8 @@ struct _PlumaTabPrivate
 	gint                    auto_save : 1;
 
 	gint                    ask_if_externally_modified : 1;
+
+	guint			idle_scroll;
 };
 
 #if GTK_CHECK_VERSION (3, 0, 0)
@@ -241,6 +243,12 @@ pluma_tab_finalize (GObject *object)
 	if (tab->priv->auto_save_timeout > 0)
 		remove_auto_save_timeout (tab);
 
+	if (tab->priv->idle_scroll != 0)
+	{
+		g_source_remove (tab->priv->idle_scroll);
+		tab->priv->idle_scroll = 0;
+	}
+
 	G_OBJECT_CLASS (pluma_tab_parent_class)->finalize (object);
 }
 
@@ -572,6 +580,14 @@ load_cancelled (GtkWidget        *area,
 	g_object_unref (tab);	
 }
 
+static gboolean
+scroll_to_cursor (PlumaTab *tab)
+{
+	pluma_view_scroll_to_cursor (PLUMA_VIEW (tab->priv->view));
+	tab->priv->idle_scroll = 0;
+	return FALSE;
+}
+
 static void 
 unrecoverable_reverting_error_message_area_response (GtkWidget        *message_area,
 						     gint              response_id,
@@ -1000,8 +1016,14 @@ document_loaded (PlumaDocument *document,
 			gtk_widget_show (emsg);
 		}
 
-		/* Scroll to the cursor when the document is loaded */
-		pluma_view_scroll_to_cursor (PLUMA_VIEW (tab->priv->view));
+		/* Scroll to the cursor when the document is loaded, we need to do it in
+		 * an idle as after the document is loaded the textview is still
+		 * redrawing and relocating its internals.
+		 */
+		if (tab->priv->idle_scroll == 0)
+		{
+			tab->priv->idle_scroll = g_idle_add ((GSourceFunc)scroll_to_cursor, tab);
+		}
 
 		all_documents = pluma_app_get_documents (pluma_app_get_default ());