respect if note is supposed to be expanded or not and save expanded state

app.py

@@ -211,6 +211,14 @@ class MoveToNote(Resource):
 
 api.add_resource(MoveToNote, '/notes/<string:note_id>/moveTo/<string:parent_id>')
 
+class ExpandedNote(Resource):
+    def put(self, note_id, expanded):
+        execute("update notes_tree set is_expanded = ? where note_id = ?", [expanded, note_id])
+
+        conn.commit()
+
+api.add_resource(ExpandedNote, '/notes/<string:note_id>/expanded/<int:expanded>')
+
 class Tree(Resource):
     def get(self):
         notes = getResults("select notes_tree.*, notes.note_title from notes_tree join notes on notes.note_id = notes_tree.note_id order by note_pid, note_pos")

frontend/.gitignore

@@ -3,3 +3,5 @@ node_modules/
 dist/
 npm-debug.log
 yarn-error.log
+app.pyc
+demo.ncdb

frontend/index.html

@@ -235,6 +235,7 @@
           for (let note of notes) {
             note.title = note.note_title;
             note.key = note.note_id;
+            note.expanded = note.is_expanded;
 
             if (note.children && note.children.length > 0) {
               copyTitle(note.children);
@@ -244,6 +245,19 @@
 
         copyTitle(notes);
 
+        function setExpanded(note_id, is_expanded) {
+          expanded_num = is_expanded ? 1 : 0;
+
+          $.ajax({
+              url: baseUrl + 'notes/' + note_id + '/expanded/' + expanded_num,
+              type: 'PUT',
+              contentType: "application/json",
+              success: function(result) {
+                
+              }
+          });
+        }
+
         $("#tree").fancytree({
           extensions: ["hotkeys"],
           source: notes,
@@ -253,6 +267,12 @@
 
             loadNote(noteId);
           },
+          expand: function(event, data) {
+            setExpanded(data.node.key, true);
+          },
+          collapse: function(event, data) {
+            setExpanded(data.node.key, false);
+          },
           hotkeys: {
             keydown: {
               "insert": function(node) {