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

```
public interface BeforeDatasetsDrawHook
```
Called before drawing the 'chart' datasets.
If any plugin returns false, the datasets drawing is cancelled until another 'render' is triggered.

Author:

Andrea "Stock" Stocchero

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  boolean onBeforeDatasetsDraw(IsChart chart)
  Called before drawing the 'chart' datasets.

- Method Detail
  - onBeforeDatasetsDraw
```
boolean onBeforeDatasetsDraw(IsChart chart)
```
    Called before drawing the 'chart' datasets.
    If any plugin returns false, the datasets drawing is cancelled until another 'render' is triggered.
    
    Parameters:
    
    chart - the chart instance.
    
    Returns:
    
    false to cancel the chart datasets drawing.