fix: Fixed issue where empty new line in Super would create extra new lines when converting to Markdown

packages/web/src/javascripts/Application/Device/DesktopManager.ts

@@ -1,4 +1,4 @@
-import { InvisibleSuperConverter } from '@/Components/SuperEditor/Tools/InvisibleMarkdownConverter'
+import { HeadlessSuperConverter } from '@/Components/SuperEditor/Tools/HeadlessSuperConverter'
 import {
   SNComponent,
   ComponentMutator,
@@ -40,7 +40,7 @@ export class DesktopManager
   ) {
     super(application, new InternalEventBus())
 
-    const markdownConverter = new InvisibleSuperConverter()
+    const markdownConverter = new HeadlessSuperConverter()
     backups.setSuperConverter(markdownConverter)
   }
 

packages/web/src/javascripts/Components/SuperEditor/Plugins/ExportPlugin/ExportPlugin.ts

@@ -9,17 +9,17 @@ import {
   SUPER_EXPORT_JSON,
   SUPER_EXPORT_MARKDOWN,
 } from '@standardnotes/ui-services'
-import { useCallback, useEffect } from 'react'
+import { useCallback, useEffect, useRef } from 'react'
-import { $convertToMarkdownString } from '@lexical/markdown'
-import { MarkdownTransformers } from '../../MarkdownTransformers'
-import { $generateHtmlFromNodes } from '@lexical/html'
 import { useCommandService } from '@/Components/CommandProvider'
+import { HeadlessSuperConverter } from '../../Tools/HeadlessSuperConverter'
 
 export const ExportPlugin = () => {
   const application = useApplication()
   const [editor] = useLexicalComposerContext()
   const commandService = useCommandService()
 
+  const converter = useRef(new HeadlessSuperConverter())
+
   const downloadData = useCallback(
     (data: Blob, fileName: string) => {
       if (!application.isNativeMobileWeb()) {
@@ -38,7 +38,7 @@ export const ExportPlugin = () => {
 
   const exportJson = useCallback(
     (title: string) => {
-      const content = JSON.stringify(editor.toJSON())
+      const content = converter.current.convertString(JSON.stringify(editor.getEditorState()), 'json')
       const blob = new Blob([content], { type: 'application/json' })
       downloadData(blob, `${sanitizeFileName(title)}.json`)
     },
@@ -47,22 +47,18 @@ export const ExportPlugin = () => {
 
   const exportMarkdown = useCallback(
     (title: string) => {
-      editor.getEditorState().read(() => {
+      const content = converter.current.convertString(JSON.stringify(editor.getEditorState()), 'md')
-        const content = $convertToMarkdownString(MarkdownTransformers)
+      const blob = new Blob([content], { type: 'text/markdown' })
-        const blob = new Blob([content], { type: 'text/markdown' })
+      downloadData(blob, `${sanitizeFileName(title)}.md`)
-        downloadData(blob, `${sanitizeFileName(title)}.md`)
-      })
     },
     [downloadData, editor],
   )
 
   const exportHtml = useCallback(
     (title: string) => {
-      editor.getEditorState().read(() => {
+      const content = converter.current.convertString(JSON.stringify(editor.getEditorState()), 'html')
-        const content = $generateHtmlFromNodes(editor)
+      const blob = new Blob([content], { type: 'text/html' })
-        const blob = new Blob([content], { type: 'text/html' })
+      downloadData(blob, `${sanitizeFileName(title)}.html`)
-        downloadData(blob, `${sanitizeFileName(title)}.html`)
-      })
     },
     [downloadData, editor],
   )

packages/web/src/javascripts/Components/SuperEditor/Plugins/MarkdownPreviewPlugin/MarkdownPreviewPlugin.tsx

@@ -1,7 +1,7 @@
 import { useLexicalComposerContext } from '@lexical/react/LexicalComposerContext'
 import { useEffect } from 'react'
 import { $createCodeNode } from '@lexical/code'
-import { $createTextNode, $getRoot } from 'lexical'
+import { $createTextNode, $getRoot, $nodesOfType, ParagraphNode } from 'lexical'
 import { $convertToMarkdownString } from '@lexical/markdown'
 import { MarkdownTransformers } from '../../MarkdownTransformers'
 
@@ -15,6 +15,12 @@ export default function MarkdownPreviewPlugin({ onMarkdown }: Props): JSX.Elemen
   useEffect(() => {
     editor.update(() => {
       const root = $getRoot()
+      const paragraphs = $nodesOfType(ParagraphNode)
+      for (const paragraph of paragraphs) {
+        if (paragraph.isEmpty()) {
+          paragraph.remove()
+        }
+      }
       const markdown = $convertToMarkdownString(MarkdownTransformers)
       root.clear().append($createCodeNode('markdown').append($createTextNode(markdown)))
       root.selectEnd()

packages/web/src/javascripts/Components/SuperEditor/SuperNoteConverter.tsx

@@ -6,7 +6,7 @@ import Icon from '../Icon/Icon'
 import Modal, { ModalAction } from '../Modal/Modal'
 import { EditorMenuItem } from '../NotesOptions/EditorMenuItem'
 import { NoteViewController } from '../NoteView/Controller/NoteViewController'
-import { InvisibleSuperConverter } from './Tools/InvisibleMarkdownConverter'
+import { HeadlessSuperConverter } from './Tools/HeadlessSuperConverter'
 
 const SuperNoteConverter = ({
   note,
@@ -47,7 +47,7 @@ const SuperNoteConverter = ({
       return note.text
     }
 
-    return new InvisibleSuperConverter().convertString(note.text, format)
+    return new HeadlessSuperConverter().convertString(note.text, format)
   }, [format, note])
 
   const componentViewer = useMemo(() => {

packages/web/src/javascripts/Components/SuperEditor/Tools/HeadlessSuperConverter.tsx

@@ -1,13 +1,13 @@
 import { createHeadlessEditor } from '@lexical/headless'
 import { $convertToMarkdownString } from '@lexical/markdown'
 import { SuperConverterServiceInterface } from '@standardnotes/snjs'
-import { LexicalEditor } from 'lexical'
+import { $nodesOfType, LexicalEditor, ParagraphNode } from 'lexical'
 import BlocksEditorTheme from '../Lexical/Theme/Theme'
 import { BlockEditorNodes } from '../Lexical/Nodes/AllNodes'
 import { MarkdownTransformers } from '../MarkdownTransformers'
 import { $generateHtmlFromNodes } from '@lexical/html'
 
-export class InvisibleSuperConverter implements SuperConverterServiceInterface {
+export class HeadlessSuperConverter implements SuperConverterServiceInterface {
   private editor: LexicalEditor
 
   constructor() {
@@ -33,9 +33,16 @@ export class InvisibleSuperConverter implements SuperConverterServiceInterface {
       () => {
         switch (format) {
           case 'txt':
-          case 'md':
+          case 'md': {
+            const paragraphs = $nodesOfType(ParagraphNode)
+            for (const paragraph of paragraphs) {
+              if (paragraph.isEmpty()) {
+                paragraph.remove()
+              }
+            }
             content = $convertToMarkdownString(MarkdownTransformers)
             break
+          }
           case 'html':
             content = $generateHtmlFromNodes(this.editor)
             break

packages/web/src/javascripts/Utils/NoteExportUtils.ts

@@ -1,5 +1,5 @@
 import { WebApplication } from '@/Application/WebApplication'
-import { InvisibleSuperConverter } from '@/Components/SuperEditor/Tools/InvisibleMarkdownConverter'
+import { HeadlessSuperConverter } from '@/Components/SuperEditor/Tools/HeadlessSuperConverter'
 import { PrefDefaults } from '@/Constants/PrefDefaults'
 import { NoteType, PrefKey, SNNote } from '@standardnotes/snjs'
 
@@ -43,7 +43,7 @@ export const getNoteBlob = (application: WebApplication, note: SNNote) => {
       break
   }
   const content =
-    note.noteType === NoteType.Super ? new InvisibleSuperConverter().convertString(note.text, format) : note.text
+    note.noteType === NoteType.Super ? new HeadlessSuperConverter().convertString(note.text, format) : note.text
   const blob = new Blob([content], {
     type,
   })