documents now remain open fixes #16

src-ui/src/app/services/open-documents.service.ts

@@ -1,26 +1,38 @@
 import { Injectable } from '@angular/core';
 import { Observable, Subject } from 'rxjs';
 import { PaperlessDocument } from '../data/paperless-document';
+import { OPEN_DOCUMENT_SERVICE } from '../data/storage-keys';
 
 @Injectable({
   providedIn: 'root'
 })
 export class OpenDocumentsService {
 
-  constructor() { }
+  constructor() { 
+    if (sessionStorage.getItem(OPEN_DOCUMENT_SERVICE.DOCUMENTS)) {
+      try {
+        this.openDocuments = JSON.parse(sessionStorage.getItem(OPEN_DOCUMENT_SERVICE.DOCUMENTS))
+      } catch (e) {
+        sessionStorage.removeItem(OPEN_DOCUMENT_SERVICE.DOCUMENTS)
+        this.openDocuments = []
+      }
+    }
+  }
 
   private openDocuments: PaperlessDocument[] = []
 
-  private openDocumentsSubject: Subject<PaperlessDocument[]> = new Subject()
+  getOpenDocuments(): PaperlessDocument[] {
+    return this.openDocuments
+  }
 
-  getOpenDocuments(): Observable<PaperlessDocument[]> {
-    return this.openDocumentsSubject
+  getOpenDocument(id: number): PaperlessDocument {
+    return this.openDocuments.find(d => d.id == id)
   }
 
   openDocument(doc: PaperlessDocument) {
     if (this.openDocuments.find(d => d.id == doc.id) == null) {
       this.openDocuments.push(doc)
-      this.openDocumentsSubject.next(this.openDocuments)
+      this.save()
     }
   }
 
@@ -28,8 +40,12 @@ export class OpenDocumentsService {
     let index = this.openDocuments.findIndex(d => d.id == doc.id)
     if (index > -1) {
       this.openDocuments.splice(index, 1)
-      this.openDocumentsSubject.next(this.openDocuments)
+      this.save()
     }
   }
 
+  save() {
+    sessionStorage.setItem(OPEN_DOCUMENT_SERVICE.DOCUMENTS, JSON.stringify(this.openDocuments))
+  }
+
 }