vlocity-lwc-examples/force-app/main/default/lwc/baseStepNavigationComponent/baseStepNavigationComponent.js

import { LightningElement } from 'lwc';
import template from './baseStepNavigationComponent.html'
import omniscriptStep from 'vlocity_cmt/omniscriptStep';
// import { OmniscriptBaseMixin } from 'vlocity_cmt/omniscriptBaseMixin';
import { dispatchOmniEvent } from 'vlocity_cmt/omniscriptUtils';

export default class BaseStepNavigationComponent extends omniscriptStep {

    connectedCallback() {
        console.debug("BaseStepNavigationComponent - connected");
    }

    gotoNext() {
        dispatchOmniEvent(this, { moveToStep: 'next' }, 'omniautoadvance');
    }

    gotoPrev() {
        try {
            let jsDef = JSON.parse(JSON.stringify(this.jsonDef));
            let idx = jsDef.indexInParent;
            // console.debug('gotoPrev stepIndex', idx);
            dispatchOmniEvent(this, { moveToStep: idx - 1 }, 'omniautoadvance');
        } catch (e) {
            console.debug("Could not parse jsonDef to get previous step index!", e);
        }
    }

    render() {
        return template;
    }
}