Handling 'cancel workflow' event

1. Add sabre-ngv-xp-registry dependency to package.json, ex.

"buildDependencies": {
      "sabre-ngv-app": "*",
      "sabre-ngv-core": "*",
      "sabre-ngv-xp": "*",
      "sabre-ngv-xp-registry": "*"
}

2. Import necessary type and constant from xp-registry

import {ExtPointAbortEventData, EXTENSION_POINT_ABORT_EVENT} from 'sabre-ngv-xp-registry/types/ExtensionPointPublicEvents';

3. Use EventBusService to create function that executes when EXTENSION_POINT_ABORT_EVENT is triggered.

        const eb = getService(EventBusService);

        eb.on(EXTENSION_POINT_ABORT_EVENT, (data: ExtPointAbortEventData) => {

        })

4. Insert custom logic into the function body. The example below shows a banner with all the data send via ExtPointAbortEventData object.

        const eb = getService(EventBusService);

        const areaService: IAreaService = getService(IAreaService);

        eb.on(EXTENSION_POINT_ABORT_EVENT, (data: ExtPointAbortEventData) => {

            areaService.showBanner('Info', 'Handling workflow abort from extension ' + data.extpId + ' with data type ' + data.dataType + ' actual data '  + JSON.stringify(data.data));

        })

Check the com.sabre.redapp.example3.web.wf.abort.handler sample for full implementation.