Adding plotly_relayouting event

Author: andrefarzat

README.md

@@ -162,6 +162,7 @@ Event handlers for specific [`plotly.js` events](https://plot.ly/javascript/plot
 | `(transitioning)`         | `Function` | `plotly_transitioning`         |
 | `(transitionInterrupted)` | `Function` | `plotly_transitioninterrupted` |
 | `(unhover)`               | `Function` | `plotly_unhover`               |
+| `(relayouting)`           | `Function` | `plotly_relayouting`           |
 
 
 ## Customizing the `plotly.js` bundle

src/app/shared/plot/plot.component.ts

@@ -82,11 +82,12 @@ export class PlotComponent implements OnInit, OnChanges, OnDestroy, DoCheck {
     @Output() transitioning = new EventEmitter();
     @Output() transitionInterrupted = new EventEmitter();
     @Output() unhover = new EventEmitter();
+    @Output() relayouting = new EventEmitter();
 
     public eventNames = ['afterExport', 'afterPlot', 'animated', 'animatingFrame', 'animationInterrupted', 'autoSize',
         'beforeExport', 'buttonClicked', 'clickAnnotation', 'deselect', 'doubleClick', 'framework', 'hover',
         'legendClick', 'legendDoubleClick', 'relayout', 'restyle', 'redraw', 'selected', 'selecting', 'sliderChange',
-        'sliderEnd', 'sliderStart', 'transitioning', 'transitionInterrupted', 'unhover'];
+        'sliderEnd', 'sliderStart', 'transitioning', 'transitionInterrupted', 'unhover', 'relayouting'];
 
     constructor(
         public plotly: PlotlyService,