support for toggling custom context menu (#1683)

* support for toggling custom context menu

* fix unit tests

ng2-components/ng2-alfresco-datatable/README.md

@@ -103,7 +103,6 @@ Usage example of this component :
 **my.component.ts**
 
 ```ts
-
 import { NgModule, Component } from '@angular/core';
 import { BrowserModule } from '@angular/platform-browser';
 import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
@@ -155,17 +154,14 @@ export class DataTableDemo {
     imports: [
         BrowserModule,
         CoreModule.forRoot(),
-        DataTableModule
+        DataTableModule.forRoot()
     ],
     declarations: [DataTableDemo],
     bootstrap: [DataTableDemo]
 })
-export class AppModule {
-}
+export class AppModule {}
 
 platformBrowserDynamic().bootstrapModule(AppModule);
-
-
 ```
 
 ![DataTable demo](docs/assets/datatable-demo.png)
@@ -179,6 +175,7 @@ platformBrowserDynamic().bootstrapModule(AppModule);
 | `actions` | boolean | false | Toggles data actions column |
 | `actionsPosition` | string (left\|right) | right | Position of the actions dropdown menu. | 
 | `fallbackThumbnail` | string |  | Fallback image for row ehre thubnail is missing|
+| `contextMenu` | boolean | false | Toggles custom context menu for the component |
 
 ### Events
 

ng2-components/ng2-alfresco-datatable/src/components/datatable/datatable.component.html

@@ -67,7 +67,8 @@
             class="mdl-data-table__cell--non-numeric non-selectable data-cell {{col.cssClass}}"
             (click)="onRowClick(row, $event)"
             (dblclick)="onRowDblClick(row, $event)"
-            [context-menu]="getContextMenuActions(row, col)">
+            [context-menu]="getContextMenuActions(row, col)"
+            [context-menu-enabled]="contextMenu">
             <div *ngIf="!col.template">
                 <div *ngSwitchCase="'image'" class="cell-value">
                     <i *ngIf="isIconValue(row, col)" class="material-icons icon-cell">{{asIconValue(row, col)}}</i>

ng2-components/ng2-alfresco-datatable/src/components/datatable/datatable.component.ts

@@ -45,6 +45,9 @@ export class DataTableComponent implements OnInit {
     @Input()
     fallbackThumbnail: string;
 
+    @Input()
+    contextMenu: boolean = false;
+
     @Output()
     rowClick: EventEmitter<DataRowEvent> = new EventEmitter<DataRowEvent>();