OpenHandler (Charba - J2CL and GWT charts library based on CHART.JS)

```
public interface OpenHandler
```
Callback interface of Toaster utility to be notified of toast item opening.

Author:

Andrea "Stock" Stocchero

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  void onOpen(ToastItem item)
  Invoked to be notified of toast item opening.

- Method Detail
  - onOpen
```
void onOpen(ToastItem item)
```
    Invoked to be notified of toast item opening.
    
    Parameters:
    
    item - toast item affected