[ADF-2240] fix e2e and test in demo shell (#3035)

* fix e2e and test in demo shell

* test single run demo shell conf

* fix script e2e

* fix test lint problems

* remove async from nested test

* fix pdf test

* modify url load pdf strategy test

* SimpleChange import

* pdf viewer test fix

* remove force closing

* refactor pdf viewer
-remove promise approach
-add event rendered
-add destroy worker

* increment timeout

* use proxy files

* remove require

* fix viewer component test

* remove last require

* prefer use of done for txt viewer test

lib/core/viewer/components/pdfViewer.component.ts

@@ -15,7 +15,17 @@
  * limitations under the License.
  */
 
-import { Component, TemplateRef, HostListener, Input, OnChanges, OnDestroy, ViewEncapsulation } from '@angular/core';
+import {
+    Component,
+    TemplateRef,
+    HostListener,
+    Output,
+    Input,
+    OnChanges,
+    OnDestroy,
+    ViewEncapsulation,
+    EventEmitter
+} from '@angular/core';
 import { LogService } from '../../services/log.service';
 import { RenderingQueueServices } from '../services/rendering-queue.services';
 
@@ -52,6 +62,13 @@ export class PdfViewerComponent implements OnChanges, OnDestroy {
     @Input()
     thumbnailsTemplate: TemplateRef<any> = null;
 
+    @Output()
+    rendered = new EventEmitter<any>();
+
+    @Output()
+    error = new EventEmitter<any>();
+
+    loadingTask: any;
     currentPdfDocument: any;
     page: number;
     displayPage: number;
@@ -80,37 +97,39 @@ export class PdfViewerComponent implements OnChanges, OnDestroy {
         // needed to preserve "this" context
         this.onPageChange = this.onPageChange.bind(this);
         this.onPagesLoaded = this.onPagesLoaded.bind(this);
+        this.onPagerendered = this.onPagerendered.bind(this);
     }
 
     ngOnChanges(changes) {
+        let blobFile = changes['blobFile'];
+
+        if (blobFile && blobFile.currentValue) {
+            let reader = new FileReader();
+            reader.onload = () => {
+                this.executePdf(reader.result);
+            };
+            reader.readAsArrayBuffer(blobFile.currentValue);
+        }
+
+        let urlFile = changes['urlFile'];
+        if (urlFile && urlFile.currentValue) {
+            this.executePdf(urlFile.currentValue);
+        }
+
         if (!this.urlFile && !this.blobFile) {
             throw new Error('Attribute urlFile or blobFile is required');
         }
-
-        if (this.urlFile) {
-            return new Promise((resolve, reject) => {
-                this.executePdf(this.urlFile, resolve, reject);
-            });
-        } else {
-            return new Promise((resolve, reject) => {
-                let reader = new FileReader();
-                reader.onload = () => {
-                    this.executePdf(reader.result, resolve, reject);
-                };
-                reader.readAsArrayBuffer(this.blobFile);
-            });
-        }
     }
 
-    executePdf(src, resolve, reject) {
-        let loadingTask = this.getPDFJS().getDocument(src);
+    executePdf(src) {
+        this.loadingTask = this.getPDFJS().getDocument(src);
 
-        loadingTask.onProgress = (progressData) => {
+        this.loadingTask.onProgress = (progressData) => {
             let level = progressData.loaded / progressData.total;
             this.loadingPercent = Math.round(level * 100);
         };
 
-        loadingTask.then((pdfDocument) => {
+        this.loadingTask.then((pdfDocument) => {
             this.currentPdfDocument = pdfDocument;
             this.totalPages = pdfDocument.numPages;
             this.page = 1;
@@ -119,13 +138,12 @@ export class PdfViewerComponent implements OnChanges, OnDestroy {
 
             this.currentPdfDocument.getPage(1).then(() => {
                 this.scalePage('auto');
-                resolve();
             }, (error) => {
-                reject(error);
+                this.error.emit();
             });
 
         }, (error) => {
-            reject(error);
+            this.error.emit();
         });
     }
 
@@ -145,6 +163,7 @@ export class PdfViewerComponent implements OnChanges, OnDestroy {
         this.documentContainer = document.getElementById('viewer-pdf-viewer');
         this.documentContainer.addEventListener('pagechange', this.onPageChange, true);
         this.documentContainer.addEventListener('pagesloaded', this.onPagesLoaded, true);
+        this.documentContainer.addEventListener('textlayerrendered', this.onPagerendered, true);
 
         this.pdfViewer = new PDFJS.PDFViewer({
             container: this.documentContainer,
@@ -163,6 +182,11 @@ export class PdfViewerComponent implements OnChanges, OnDestroy {
         if (this.documentContainer) {
             this.documentContainer.removeEventListener('pagechange', this.onPageChange, true);
             this.documentContainer.removeEventListener('pagesloaded', this.onPagesLoaded, true);
+            this.documentContainer.removeEventListener('textlayerrendered', this.onPagerendered, true);
+        }
+
+        if (this.loadingTask) {
+            this.loadingTask.destroy();
         }
     }
 
@@ -373,6 +397,13 @@ export class PdfViewerComponent implements OnChanges, OnDestroy {
         this.displayPage = event.pageNumber;
     }
 
+    /**
+     * Page Rendered Event
+     */
+    onPagerendered() {
+        this.rendered.emit();
+    }
+
     /**
      * Pages Loaded Event
      *