[no-issue] error image resolver mimetype should not be part of datatable (#3415)

* move error image custom logic form datatable to documentlist

* change travis

* [fix-test-log] added optional function to data row interface

* [no-issue] fixed datatable tests

* [no-issue] fixing tests

demo-shell/resources/i18n/en.json

@@ -95,6 +95,7 @@
         "CUSTOM_FILTER" :"Custom extensions filter",
         "MAX_SIZE" : "Max size filter",
         "ENABLE_VERSIONING" :"Enable versioning",
+        "THUMBNAILS" :"Enable Thumbnails",
         "DESCRIPTION_UPLOAD" : "Enable upload",
         "ENABLE_INFINITE_SCROLL":"Enable Infinite Scrolling",
         "MULTISELECT_DESCRIPTION" : "Use Cmd (Mac) or Ctrl (Windows) to toggle selection of multiple items",

demo-shell/src/app/components/files/files.component.html

@@ -199,6 +199,7 @@
                 [sorting]="sorting"
                 [sortingMode]="sortingMode"
                 [showHeader]="showHeader"
+                [thumbnails]="thumbnails"
                 (error)="onNavigationError($event)"
                 (success)="resetError()"
                 (ready)="emitReadyEvent($event)"
@@ -477,6 +478,12 @@
             </mat-slide-toggle>
         </section>
 
+        <section>
+            <mat-slide-toggle [color]="'primary'" (click)="toggleThumbnails()" >{{'DOCUMENT_LIST.THUMBNAILS' |
+                translate}}
+            </mat-slide-toggle>
+        </section>
+
         <section>
             <mat-slide-toggle [color]="'primary'" [(ngModel)]="versioning">
                 {{'DOCUMENT_LIST.ENABLE_VERSIONING' | translate}}

demo-shell/src/app/components/files/files.component.ts

@@ -178,6 +178,7 @@ export class FilesComponent implements OnInit, OnChanges, OnDestroy {
     supportedPages: number[];
     currentSiteid = '';
     warnOnMultipleUploads = false;
+    thumbnails = false;
 
     private onCreateFolder: Subscription;
     private onEditFolder: Subscription;
@@ -213,6 +214,11 @@ export class FilesComponent implements OnInit, OnChanges, OnDestroy {
         return this.folderUpload;
     }
 
+    toggleThumbnails() {
+        this.thumbnails = !this.thumbnails;
+        this.documentList.reload();
+    }
+
     ngOnInit() {
         if (!this.pagination) {
             this.pagination = <Pagination>{