Merged PR 101003: Added custom methods to support playground sandbox

Currently playground sandbox overrides element.createNode and powerbi JS service.handleEvent methods to allow safe evaluation of user code.

Instead of overriding these general methods, added 2 custom methods to js SDK service.ts

Author: May Hartov

dist/powerbi-client.d.ts

@@ -1608,6 +1608,8 @@ declare module "service" {
     }
     export interface IService {
         hpm: hpm.HttpPostMessage;
+        preComponentCreation: (frame: HTMLIFrameElement) => void;
+        customEventHandler: (event: IEvent<any>) => void;
     }
     /**
      * The Power BI Service embed component, which is the entry point to embed all other Power BI components into your application
@@ -1644,6 +1646,14 @@ declare module "service" {
          * @hidden
         */
         wpmp: wpmp.WindowPostMessageProxy;
+        /** An external function used to add custom functionality to embed setIframe. Used in playground safe-eval.
+        * @hidden
+        */
+        preComponentCreation: (frame: HTMLIFrameElement) => void;
+        /** A custom event handler used to override the SDK default event handler. Used in playground safe-eval.
+       * @hidden
+       */
+        customEventHandler: (event: IEvent<any>) => void;
         private router;
         private uniqueSessionId;
         /**

dist/powerbi.js

@@ -723,6 +723,11 @@ export abstract class Embed {
       while (node.firstChild) {
         node.removeChild(node.firstChild);
       }
+
+      if (this.service.preComponentCreation != null) {
+        this.service.preComponentCreation(iframeContent);
+      }
+
       node.appendChild(iframeContent);
       this.iframe = <HTMLIFrameElement>node.firstChild;
     }

dist/powerbi.min.js

@@ -72,6 +72,8 @@ export interface IServiceConfiguration extends IDebugOptions {
 
 export interface IService {
   hpm: hpm.HttpPostMessage;
+  preComponentCreation: (frame: HTMLIFrameElement) => void;
+  customEventHandler: (event: IEvent<any>) => void;
 }
 
 /**
@@ -124,6 +126,14 @@ export class Service implements IService {
    * @hidden
   */
   wpmp: wpmp.WindowPostMessageProxy;
+  /** An external function used to add custom functionality to embed setIframe. Used in playground safe-eval.
+  * @hidden
+  */
+  public preComponentCreation: (frame: HTMLIFrameElement) => void = null;
+   /** A custom event handler used to override the SDK default event handler. Used in playground safe-eval.
+  * @hidden
+  */
+  public customEventHandler: (event: IEvent<any>) => void = null;
   private router: router.Router;
   private uniqueSessionId: string;
 
@@ -532,6 +542,11 @@ export class Service implements IService {
    * @hidden
    */
   private handleEvent(event: IEvent<any>): void {
+    if (this.customEventHandler != null) {
+      this.customEventHandler(event);
+      return;
+    }
+
     let embed = utils.find(embed => {
       return (embed.config.uniqueId === event.id);
     }, this.embeds);