Added callback for when popover is about to reset

readme.md

@@ -170,6 +170,7 @@ const driver = new Driver({
   onHighlightStarted: (Element) {}, // Called when element is about to be highlighted
   onHighlighted: (Element) {},      // Called when element is fully highlighted
   onDeselected: (Element) {},       // Called when element has been deselected
+  onReset: () {},                   // Called when element has been deselected
 });
 ```
 Note that all the button options that you provide in the driver definition can be overridden for a specific step by giving them in the step definition

src/core/overlay.js

@@ -132,6 +132,11 @@ export default class Overlay {
    * @public
    */
   clear(immediate = false) {
+    // Callback for when overlay is about to be reset
+    if (this.options.onReset) {
+      this.options.onReset();
+    }
+
     // Deselect the highlighted element if any
     if (this.highlightedElement) {
       const hideStage = true;

src/index.js

@@ -38,6 +38,8 @@ export default class Driver {
       },
       onDeselected: () => {         // When the element has been deselected
       },
+      onReset: () => {              // When overlay is about to be cleared
+      },
       ...options,
     };
 

types/index.d.ts

@@ -701,6 +701,11 @@ declare module 'driver.js' {
        * @returns any
        */
       onDeselected?: (element: Driver.Element) => void,
+
+      /**
+       * Is called when the overlay is about to reset
+       */
+      onReset?: () => void,
     }
 
     interface ElementOptions extends Driver.DriverOptions {