From bcc047a98eb2605cc4f57415ea39699708714f7c Mon Sep 17 00:00:00 2001
From: Christoph Lukas <lukas@pingworks.de>
Date: Wed, 8 May 2019 20:25:49 +0200
Subject: [PATCH 1/2] Added simple callback functionality to add preRender
 function

---
 src/widgets/EventPage.ts              | 7 +++++++
 src/widgets/config/EventPageConfig.ts | 6 ++++++
 2 files changed, 13 insertions(+)

diff --git a/src/widgets/EventPage.ts b/src/widgets/EventPage.ts
index 77f6edd..227f91b 100644
--- a/src/widgets/EventPage.ts
+++ b/src/widgets/EventPage.ts
@@ -109,6 +109,12 @@ export default class EventPage extends Widget<EventPageConfig> {
     $('head').append(`<script type="application/ld+json">${JSON.stringify(jsonLd)}</script>`);
   }
 
+  private preRender() {
+    if(this.config.preRenderCallback && typeof(this.config.preRenderCallback) == 'function') {
+      this.config.preRenderCallback(this.event);
+    }
+  }
+
   private init() {
     if (this.config.theme) {
       this.$root.addClass(this.config.theme);
@@ -128,6 +134,7 @@ export default class EventPage extends Widget<EventPageConfig> {
         self.event = new Event(data, self.config);
         self.updateHTML();
         self.addJsonLD();
+        self.preRender();
         self.renderWidget();
       });
   }
diff --git a/src/widgets/config/EventPageConfig.ts b/src/widgets/config/EventPageConfig.ts
index e726170..1a7fcce 100644
--- a/src/widgets/config/EventPageConfig.ts
+++ b/src/widgets/config/EventPageConfig.ts
@@ -74,6 +74,11 @@ export default class EventPageConfig extends WidgetConfig {
    */
   readonly numberOfTickets: boolean;
 
+  /**
+   * Callback function to parse event data into markup
+   */
+  readonly preRenderCallback: Function;
+
   protected constructor(options: IPlainObject) {
     super(options);
     this.trainers = options.trainers !== undefined ? options.trainers : false;
@@ -83,6 +88,7 @@ export default class EventPageConfig extends WidgetConfig {
     this.expiredTickets = options.expiredTickets !== undefined ? options.expiredTickets : true;
     this.numberOfTickets = options.numberOfTickets !== undefined ? options.numberOfTickets : true;
     this.showFutureEvents = options.futureEvents !== undefined ? options.futureEvents : true;
+    this.preRenderCallback = typeof(options.preRenderCallback) == 'function' ? options.preRenderCallback: undefined;
     this.eventPageUrl = safeHref();
   }
 

From f254737cff6ad5d26f64cd6602f4ec9f0d7b00ee Mon Sep 17 00:00:00 2001
From: Christoph Lukas <lukas@pingworks.de>
Date: Wed, 8 May 2019 21:59:18 +0200
Subject: [PATCH 2/2] Fixed tslint errors

---
 src/widgets/EventPage.ts              | 2 +-
 src/widgets/config/EventPageConfig.ts | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/widgets/EventPage.ts b/src/widgets/EventPage.ts
index 227f91b..2efd530 100644
--- a/src/widgets/EventPage.ts
+++ b/src/widgets/EventPage.ts
@@ -110,7 +110,7 @@ export default class EventPage extends Widget<EventPageConfig> {
   }
 
   private preRender() {
-    if(this.config.preRenderCallback && typeof(this.config.preRenderCallback) == 'function') {
+    if (this.config.preRenderCallback && typeof(this.config.preRenderCallback) === 'function') {
       this.config.preRenderCallback(this.event);
     }
   }
diff --git a/src/widgets/config/EventPageConfig.ts b/src/widgets/config/EventPageConfig.ts
index 1a7fcce..e622556 100644
--- a/src/widgets/config/EventPageConfig.ts
+++ b/src/widgets/config/EventPageConfig.ts
@@ -1,6 +1,7 @@
 import {logError} from '../../common/Error';
 import {absoluteURL, safeHref} from '../../common/helpers/UrlParser';
 import IPlainObject from '../../interfaces/IPlainObject';
+import Event from '../../models/Event';
 import WidgetConfig from './WidgetConfig';
 
 /**
@@ -77,7 +78,7 @@ export default class EventPageConfig extends WidgetConfig {
   /**
    * Callback function to parse event data into markup
    */
-  readonly preRenderCallback: Function;
+  readonly preRenderCallback: (event: Event) => void;
 
   protected constructor(options: IPlainObject) {
     super(options);
@@ -88,7 +89,7 @@ export default class EventPageConfig extends WidgetConfig {
     this.expiredTickets = options.expiredTickets !== undefined ? options.expiredTickets : true;
     this.numberOfTickets = options.numberOfTickets !== undefined ? options.numberOfTickets : true;
     this.showFutureEvents = options.futureEvents !== undefined ? options.futureEvents : true;
-    this.preRenderCallback = typeof(options.preRenderCallback) == 'function' ? options.preRenderCallback: undefined;
+    this.preRenderCallback = typeof(options.preRenderCallback) === 'function' ? options.preRenderCallback : undefined;
     this.eventPageUrl = safeHref();
   }