Add add'l code to prevent events on menu in legacy browsers

cytoscape · Oct 24, 2018 · d336a20 · d336a20
1 parent 2823807
commit d336a20
Showing 1 changed file with 10 additions and 1 deletion.
diff --git a/src/cxtmenu.js b/src/cxtmenu.js
@@ -32,7 +32,16 @@ let cxtmenu = function(params){
     position: 'absolute',
     zIndex: options.zIndex,
     userSelect: 'none',
-    pointerEvents: 'none'
+    pointerEvents: 'none' // prevent events on menu in modern browsers
+  });
+
+  // prevent events on menu in legacy browsers
+  ['mousedown', 'mousemove', 'mouseup', 'contextmenu'].forEach(evt => {
+    wrapper.addEventListener(evt, e => {
+      e.preventDefault();
+
+      return false;
+    });
   });
 
   setStyles(parent, {