[ADF-2005] Cannot view document in tasklist attachment list (#2701)

demo-shell/src/app/components/process-service/form-node-viewer.component.ts

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+/*!
+ * @license
+ * Copyright 2016 Alfresco Software, Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { Component, OnDestroy, OnInit } from '@angular/core';
+import { ActivatedRoute } from '@angular/router';
+import { Subscription } from 'rxjs/Rx';
+
+@Component({
+    selector: 'form-node-viewer',
+    templateUrl: './form-node-viewer.component.html',
+    styleUrls: ['./form-node-viewer.component.css']
+})
+export class FormNodeViewerComponent implements OnInit, OnDestroy {
+
+    nodeId: string;
+
+    private sub: Subscription;
+
+    constructor(private route: ActivatedRoute) {
+    }
+
+    ngOnInit() {
+        this.sub = this.route.params.subscribe(params => {
+            this.nodeId = params['id'];
+        });
+    }
+
+    ngOnDestroy() {
+        this.sub.unsubscribe();
+    }
+
+}