BaconJS example

bacon_example.coffee

combinedBuffer = Bacon.fromBinder (sink) ->

      freeBuffer = Bacon.fromBinder (buff) ->
        cyto.on 'free', 'node', (e) ->
          buff({type: 'free', node: e, position: x: e.cyTarget.position().x, y: e.cyTarget.position().y})

        return () ->
      grabBuffer = Bacon.fromBinder (buff) ->
        cyto.on 'grab', 'node', (e) ->
          buff({type: 'grab', node: e, position: x: e.cyTarget.position().x, y: e.cyTarget.position().y})

        return () ->
      Bacon.combineAsArray(grabBuffer, freeBuffer)
        .filter (value) ->
          ev1 = value[0]
          ev2 = value[1]
          if ev1.node.cyTarget.data("guid") == ev2.node.cyTarget.data("guid")
            return ev1.position.x != ev2.position.x && ev1.position.y != ev2.position.y
          return true;
        .map (evs) ->
          return evs[1].node
        .onValue (events) ->
          sink(events)
      return () ->


    combinedBuffer.bufferWithTime(300).onValue (nodeEvents) =>
      @get('stream').apply (styleChanges)=>
        for e in nodeEvents
          node = e.cyTarget
          styleChanges.set "nodes.#{node.data("guid")}", position: node.position()