prevent dragging existing, prevent deleting existing

modules/actions/delete_node.js

@@ -7,6 +7,11 @@ export function actionDeleteNode(nodeId) {
     var action = function(graph) {
         var node = graph.entity(nodeId);
 
+        // Prevent deletion of existing nodes (anti-vandalism)
+        if (node.version) {
+            throw new Error('Deletion of existing features is not allowed.');
+        }
+
         graph.parentWays(node)
             .forEach(function(parent) {
                 parent = parent.removeNode(nodeId);

modules/modes/drag_node.js

@@ -130,8 +130,9 @@ export function modeDragNode(context) {
     function start(d3_event, entity) {
         _wasMidpoint = entity.type === 'midpoint';
         var hasHidden = context.features().hasHiddenConnections(entity, context.graph());
-        _isCancelled = !context.editable() || d3_event.shiftKey || hasHidden;
-
+        var isNewFeature = !entity.version;
+        // var isALPR = entity.tags && entity.tags['surveillance:type'] === 'ALPR'; // Allow ALPR editing
+        _isCancelled = !context.editable() || d3_event.shiftKey || hasHidden || !isNewFeature;
 
         if (_isCancelled) {
             if (hasHidden) {
@@ -139,6 +140,11 @@ export function modeDragNode(context) {
                     .duration(4000)
                     .iconName('#iD-icon-no')
                     .label(t.append('modes.drag_node.connected_to_hidden'))();
+            } else if (!isNewFeature) {
+                context.ui().flash
+                    .duration(4000)
+                    .iconName('#iD-icon-no')
+                    .label(t.append('modes.drag_node.editing_existing_not_allowed'))();
             }
             return drag.cancel();
         }

modules/ui/tools/modes.js

@@ -59,7 +59,6 @@ export function uiToolDrawModes(context) {
 
         var wrap = selection
             .append('div')
-            .attr('class', 'joined')
             .style('display', 'flex');
 
         var debouncedUpdate = _debounce(update, 500, { leading: true, trailing: true });