fix dschnelldavis#274 Button close does not exist in the NoFramework Component.

This is bug fixing commit.

Author: DhiaEddineSaidi

src/lib/src/framework-library/no-framework/no-framework.component.ts

@@ -1,15 +1,62 @@
-import { Component, Input } from '@angular/core';
+import { Component, Input, OnInit } from '@angular/core';
+import * as _ from 'lodash';
+import { JsonSchemaFormService } from '../../json-schema-form.service';
 
 @Component({
   selector: 'no-framework',
   template: `
+  <button style='float:right;clear: right;' *ngIf="showRemoveButton"
+  type="button"
+  (click)="removeItem()">
+  <span aria-hidden="true">&times;</span>
+</button>
     <select-widget-widget
       [dataIndex]="dataIndex"
       [layoutIndex]="layoutIndex"
-      [layoutNode]="layoutNode"></select-widget-widget>`,
+      [layoutNode]="layoutNode"></select-widget-widget>
+      `,
 })
-export class NoFrameworkComponent {
+export class NoFrameworkComponent implements OnInit {
+
+  options: any; // Options used in this framework
+  parentArray: any = null;
+  isOrderable = false;
+
   @Input() layoutNode: any;
   @Input() layoutIndex: number[];
   @Input() dataIndex: number[];
+
+  constructor(
+    public jsf: JsonSchemaFormService
+  ) { }
+
+  ngOnInit() {
+    this.options = _.cloneDeep(this.layoutNode.options);
+    if (this.layoutNode.arrayItem && this.layoutNode.type !== '$ref') {
+      this.parentArray = this.jsf.getParentNode(this);
+      if (this.parentArray) {
+        this.isOrderable = this.layoutNode.arrayItemType === 'list' &&
+          !this.options.readonly && this.parentArray.options.orderable;
+      }
+    }
+  }
+
+
+  get showRemoveButton(): boolean {
+    if (!this.options.removable || this.options.readonly ||
+      this.layoutNode.type === '$ref'
+    ) { return false; }
+    if (this.layoutNode.recursiveReference) { return true; }
+    if (!this.layoutNode.arrayItem || !this.parentArray) { return false; }
+    // If array length <= minItems, don't allow removing any items
+    return this.parentArray.items.length - 1 <= this.parentArray.options.minItems ? false :
+      // For removable list items, allow removing any item
+      this.layoutNode.arrayItemType === 'list' ? true :
+        // For removable tuple items, only allow removing last item in list
+        this.layoutIndex[this.layoutIndex.length - 1] === this.parentArray.items.length - 2;
+  }
+
+  removeItem() {
+    this.jsf.removeItem(this);
+  }
 }