scenejs-parent-events.js

var graph = SceneJs.graph(

    SceneJs.node({

            preVisit:function(nodeContext) {

                // Events 'alpha' and 'beta' are fired from here at Step 1.

               nodeContext.fireParentEvent('alpha', {
                   foo: 'foo value',
                   bar: 'bar value'
               });

               nodeContext.fireParentEvent('beta', {
                   foo: 'foo value',
		   bar: 'bar value'
			    });
            }
        },
               
        SceneJs.node({
                parentListeners: {
                    'alpha': {
                         fn: function(nodeContext, event) {

                             // Event 'alpha' is handled here at step 2 and is consumed so that it stops here.
                             // Parent events are handled just prior to preVisit.

                             event.consumed = true;
		         }
                     },

                     'beta': {
                         fn: function(nodeContext, event) {

                             // Event 'beta' is handled here at step 3.
                         }
                     }
                }
            }), // SceneJs.node
            
            SceneJs.node({
                    parentListeners: {
                        'beta' : {
                            fn: function(nodeContext, event) {

                                // Event 'beta' is handled again here at step 4.
                            }
                        }
                    }
                },
                     
                SceneJs.node(
                    SceneJs.Node({
                            parentListeners: {
                                'beta': {
                                    fn: function(nodeContext, event) {

                                        // Event 'beta' is handled yet again here at step 5.
                                    }
                                }
                            }
                        })                               
                    ) // SceneJs.node                    
                ) // SceneJs.node
            ) // SceneJs.node     
        ); // SceneJs.graph

graph.traverse();