Question

I got stuck on this, basically what I need is a way to auto expand category tree node that contains a sub category node checked.

The entry point in the code is js/extjs/ext-tree-checkbox.js and 'catalog/category/tree.phtml'

It is possible to a expand a node in with expand() js method and it is no difficult to expand all node but this slow down the page too much.

Update:

I have tested the following solution:

1. Change js/extjs/ext-tree-checkbox.js render method adding this:

   var tree = n.getOwnerTree();
       if (tree){
           expandNodeIds =  tree.expandNodeIds.split(',');
           for (i in expandNodeIds) 
           {
               if (n.id == expandNodeIds[i])
                   n.expand();
           }
       }
   

This solution works but It breaks ( it is not displayed anymore ) the tree for permission Role

Answer 1

This fix all the problem

 var tree = n.getOwnerTree();
    if (tree){
        expandNodeIds =  tree.expandNodeIds;

        if (expandNodeIds) {
            expandNodeIds = expandNodeIds.split(',');
            for (i in expandNodeIds) 
            {
                if (n.id == expandNodeIds[i])
                    n.expand();
            }
        }

Add the above code in render method of js/extjs/ext-tree-checkbox.js