adding history, links & nodes only

no atomicity - nodes/links recorded as separate additions
We record both temp (state == 'temp') and not temp nodes,
can be filtered during analysis.

1 files changed, 7 insertions, 0 deletions

diff --git a/scripts/buttons.js b/scripts/buttons.js
index 8af525c2..824505d3 100644
--- a/scripts/buttons.js
+++ b/scripts/buttons.js
@@ -49,3 +49,10 @@ $('.set-user').click(function() {
         $('.save-history').show();
     })
 });
+
+$('.save-history').click(function() {
+    if (graph.history === undefined) {
+        throw "History is undefined";
+    }
+    graph.history.save_to_file();
+});