Fix: track and restore changed document fields from session storage (#10468)

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

@@ -241,4 +241,15 @@ describe('OpenDocumentsService', () => {
     openDocumentsService.openDocument(doc)
     expect(consoleSpy).toHaveBeenCalled()
   })
+
+  it('should set dirty status with changed fields', () => {
+    subscriptions.push(
+      openDocumentsService.openDocument(documents[0]).subscribe()
+    )
+    const changedFields = { title: 'foo', content: 'bar' }
+    openDocumentsService.setDirty(documents[0], true, changedFields)
+    expect(
+      openDocumentsService.getOpenDocument(documents[0].id).__changedFields
+    ).toEqual(['title', 'content'])
+  })
 })

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

@@ -84,10 +84,20 @@ export class OpenDocumentsService {
     this.save()
   }
 
-  setDirty(doc: Document, dirty: boolean) {
-    if (!this.openDocuments.find((d) => d.id == doc.id)) return
-    if (dirty) this.dirtyDocuments.add(doc.id)
-    else this.dirtyDocuments.delete(doc.id)
+  setDirty(doc: Document, dirty: boolean, changedFields: object = {}) {
+    const existingDoc = this.getOpenDocument(doc.id)
+    if (!existingDoc) return
+    if (dirty) {
+      this.dirtyDocuments.add(doc.id)
+      existingDoc.__changedFields = Object.keys(changedFields).filter(
+        (key) => key !== 'id'
+      )
+    } else {
+      this.dirtyDocuments.delete(doc.id)
+      existingDoc.__changedFields = []
+    }
+
+    this.save()
   }
 
   hasDirty(): boolean {