fix: export/sharing notes on mobile webview (#1644)

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

@@ -0,0 +1,36 @@
+import { WebApplication } from '@/Application/Application'
+import { SNNote } from '@standardnotes/snjs'
+
+export const getNoteFormat = (application: WebApplication, note: SNNote) => {
+  const editor = application.componentManager.editorForNote(note)
+  const format = editor?.package_info?.file_type || 'txt'
+  return format
+}
+
+export const getNoteFileName = (application: WebApplication, note: SNNote): string => {
+  const format = getNoteFormat(application, note)
+  return `${note.title}.${format}`
+}
+
+export const getNoteBlob = (application: WebApplication, note: SNNote) => {
+  const format = getNoteFormat(application, note)
+  let type: string
+  switch (format) {
+    case 'html':
+      type = 'text/html'
+      break
+    case 'json':
+      type = 'application/json'
+      break
+    case 'md':
+      type = 'text/markdown'
+      break
+    default:
+      type = 'text/plain'
+      break
+  }
+  const blob = new Blob([note.text], {
+    type,
+  })
+  return blob
+}