add content warning info text to editor

src/components/AdvancedEventLab/AdvancedEventLabDialog.tsx

@@ -30,6 +30,7 @@ import {
   serializePublishPreviewLabJson,
   type AdvancedEventLabSlice
 } from '@/lib/advanced-event-lab-slice'
+import type { TContentWarningDraftOptions } from '@/lib/content-warning'
 import { translateAdvancedLabMarkup } from '@/lib/advanced-lab-markup-protect'
 import {
   warmTranslateLanguagesOnce,
@@ -201,6 +202,8 @@ export type AdvancedEventLabDialogProps = {
   previewEmojiTags?: string[][]
   /** When true (default), JSON preview includes the Imwald `client` tag like publish. */
   addClientTag?: boolean
+  /** Composer Advanced panel content-warning settings (merged into JSON preview). */
+  contentWarning?: TContentWarningDraftOptions
 }
 
 function useDarkModeFlag(): boolean {
@@ -234,7 +237,8 @@ export default function AdvancedEventLabDialog({
   draftPersistenceKey = null,
   previewAuthorPubkey = null,
   previewEmojiTags,
-  addClientTag = true
+  addClientTag = true,
+  contentWarning
 }: AdvancedEventLabDialogProps) {
   const { t, i18n } = useTranslation()
   /** `useTranslation().t` can change identity every render; never list it as a layout-effect dep (editor remount loop). */
@@ -316,10 +320,10 @@ export default function AdvancedEventLabDialog({
           content,
           tags: editableRowsToLabTags(labTagRows)
         },
-        { addClientTag }
+        { addClientTag, contentWarning }
       )
     )
-  }, [kindEditable, initial, labTagRows, addClientTag])
+  }, [kindEditable, initial, labTagRows, addClientTag, contentWarning])
 
   useEffect(() => {
     refreshLabJsonPreviewRef.current = refreshLabJsonPreview

src/components/PostEditor/PostContent.tsx

@@ -42,7 +42,6 @@ import {
 } from '@/lib/draft-event'
 import {
   contentWarningDraftOptions,
-  DEFAULT_CONTENT_WARNING_LABEL,
   normalizeContentWarningLabel
 } from '@/lib/content-warning'
 import {
@@ -301,7 +300,7 @@ export default function PostContent({
   const [addClientTag, setAddClientTag] = useState(() => storage.getAddClientTag())
   const [mentions, setMentions] = useState<string[]>([])
   const [isNsfw, setIsNsfw] = useState(false)
-  const [contentWarningLabel, setContentWarningLabel] = useState(DEFAULT_CONTENT_WARNING_LABEL)
+  const [contentWarningLabel, setContentWarningLabel] = useState('')
   const [isPoll, setIsPoll] = useState(false)
   const [isPublicMessage, setIsPublicMessage] = useState(!!initialPublicMessageTo)
   const [extractedMentions, setExtractedMentions] = useState<string[]>(
@@ -761,9 +760,7 @@ export default function PostContent({
       })
       if (cachedSettings) {
         setIsNsfw(cachedSettings.isNsfw ?? false)
-        setContentWarningLabel(
-          normalizeContentWarningLabel(cachedSettings.contentWarningLabel ?? DEFAULT_CONTENT_WARNING_LABEL)
-        )
+        setContentWarningLabel(cachedSettings.contentWarningLabel?.trim() ?? '')
         setIsPoll(cachedSettings.isPoll ?? false)
         setPollCreateData(
           cachedSettings.pollCreateData ?? {
@@ -903,6 +900,11 @@ export default function PostContent({
     return contextual.length ? contextual : undefined
   }, [isDiscussionThread, parentEvent, discussionPreviewExtraTags, rssReplyExtraPreviewTags])
 
+  const labContentWarning = useMemo(
+    () => contentWarningDraftOptions(isNsfw, contentWarningLabel),
+    [isNsfw, contentWarningLabel]
+  )
+
   // Shared function to create draft event - used by both preview and posting
   const createDraftEvent = useCallback(async (cleanedText: string): Promise<any> => {
     const uploadImetaTagsOpt = mediaImetaTags.length > 0 ? mediaImetaTags : undefined
@@ -2554,6 +2556,8 @@ export default function PostContent({
       sourceType: 'nostr',
       sourceValue: ''
     })
+    setIsNsfw(false)
+    setContentWarningLabel('')
     uploadedMediaFileMap.current.clear()
     composerImetaTagsRef.current = []
     setUploadProgresses([])
@@ -3443,6 +3447,7 @@ export default function PostContent({
           articleMetadata={articlePreviewMetadata}
           musicTrackMetadata={musicTrackPreviewMetadata}
           addClientTag={addClientTag}
+          contentWarning={labContentWarning}
           mediaImetaTags={mediaImetaTags}
           mediaUrl={mediaUrl}
           headerActions={(() => {
@@ -3687,6 +3692,13 @@ export default function PostContent({
           }
         />
       </div>
+      {!showMoreOptions && isNsfw ? (
+        <p className="text-xs text-muted-foreground" role="status">
+          {t('Post editor content warning summary', {
+            label: normalizeContentWarningLabel(contentWarningLabel)
+          })}
+        </p>
+      ) : null}
       {isDiscussionThread && !parentEvent && (
         <div className="flex min-w-0 flex-col gap-1">
           {threadErrors.content && <p className="text-sm text-destructive">{threadErrors.content}</p>}
@@ -4043,6 +4055,7 @@ export default function PostContent({
         contextEventId={parentEvent?.id ?? null}
         previewAuthorPubkey={pubkey ?? null}
         addClientTag={addClientTag}
+        contentWarning={labContentWarning}
         draftPersistenceKey={advancedLabOpen ? advancedLabPersistenceKey : null}
         bodyApiRef={advancedLabBodyApiRef}
         formatToolbar={

src/components/PostEditor/PostEditorAdvancedPanel.tsx

@@ -101,7 +101,9 @@ export default function PostEditorAdvancedPanel({
   }
 
   const selectValue = useMemo(() => {
-    if (isPresetContentWarningLabel(contentWarningLabel)) return contentWarningLabel
+    const trimmed = contentWarningLabel.trim()
+    if (!trimmed) return DEFAULT_CONTENT_WARNING_LABEL
+    if (isPresetContentWarningLabel(trimmed)) return trimmed
     return CONTENT_WARNING_CUSTOM_SELECT_VALUE
   }, [contentWarningLabel])
 
@@ -196,8 +198,10 @@ export default function PostEditorAdvancedPanel({
                 checked={isNsfw}
                 onCheckedChange={(checked) => {
                   setIsNsfw(checked)
-                  if (checked && !contentWarningLabel.trim()) {
-                    setContentWarningLabel(DEFAULT_CONTENT_WARNING_LABEL)
+                  if (checked) {
+                    setContentWarningLabel((prev) => prev.trim() || DEFAULT_CONTENT_WARNING_LABEL)
+                  } else {
+                    setContentWarningLabel('')
                   }
                 }}
                 disabled={posting}
@@ -210,7 +214,7 @@ export default function PostEditorAdvancedPanel({
                   value={selectValue}
                   onValueChange={(value) => {
                     if (value === CONTENT_WARNING_CUSTOM_SELECT_VALUE) {
-                      if (isPresetContentWarningLabel(contentWarningLabel)) {
+                      if (isPresetContentWarningLabel(contentWarningLabel.trim())) {
                         setContentWarningLabel('')
                       }
                       return

src/components/PostEditor/PostTextarea/Preview.tsx

@@ -11,10 +11,12 @@ import { createFakeEvent } from '@/lib/event'
 import { randomString } from '@/lib/random'
 import { cleanUrl, rewritePlainTextHttpUrls } from '@/lib/url'
 import { cn } from '@/lib/utils'
+import { mergeContentWarningTagsFromDraftOptions, type TContentWarningDraftOptions } from '@/lib/content-warning'
 import { TPollCreateData } from '@/types'
 import { kinds, nip19 } from 'nostr-tools'
 import { replaceStandardEmojiShortcodesInContent } from '@/lib/emoji-content'
 import { useMemo, type ReactNode } from 'react'
+import { useTranslation } from 'react-i18next'
 import ContentPreview from '../../ContentPreview'
 import Content from '../../Content'
 import Highlight from '../../Note/Highlight'
@@ -34,7 +36,8 @@ export default function Preview({
   articleMetadata,
   musicTrackMetadata,
   extraPreviewTags,
-  addClientTag = true
+  addClientTag = true,
+  contentWarning
 }: { 
   content: string
   className?: string
@@ -68,7 +71,10 @@ export default function Preview({
   extraPreviewTags?: string[][]
   /** When true (default), preview matches publish: Imwald `client` + attribution `alt` tags and badge. */
   addClientTag?: boolean
+  /** Composer Advanced panel content-warning settings. */
+  contentWarning?: TContentWarningDraftOptions
 }) {
+  const { t } = useTranslation()
   const { content: processedContent, emojiTags, highlightTags, pollTags } = useMemo(
     () => {
       // Clean tracking parameters from URLs in the preview
@@ -223,12 +229,15 @@ export default function Preview({
     if (extraPreviewTags?.length) {
       tags.push(...extraPreviewTags)
     }
+    if (contentWarning) {
+      mergeContentWarningTagsFromDraftOptions(tags, contentWarning)
+    }
     const stripped = stripImwaldAttributionTags(tags)
     if (addClientTag) {
       stripped.push(buildClientTag())
     }
     return stripped
-  }, [emojiTags, highlightTags, pollTags, mediaImetaTags, articleMetadata, musicTrackMetadata, kind, extraPreviewTags, addClientTag])
+  }, [emojiTags, highlightTags, pollTags, mediaImetaTags, articleMetadata, musicTrackMetadata, kind, extraPreviewTags, addClientTag, contentWarning])
   
   const fakeEvent = useMemo(() => {
     // For voice comments, include the media URL in content if not already there
@@ -244,6 +253,28 @@ export default function Preview({
     })
   }, [processedContent, allTags, kind, mediaUrl])
 
+  const hasPreviewBody = useMemo(() => {
+    if (processedContent.trim()) return true
+    if (mediaUrl?.trim()) return true
+    if (articleMetadata?.title?.trim()) return true
+    if (articleMetadata?.summary?.trim()) return true
+    if (musicTrackMetadata?.title?.trim()) return true
+    if (musicTrackMetadata?.audioUrl?.trim()) return true
+    if (kind === ExtendedKind.POLL && pollCreateData?.options.some((o) => o.trim())) return true
+    if (kind === kinds.Highlights && highlightData?.sourceValue?.trim()) return true
+    if ((mediaImetaTags?.length ?? 0) > 0) return true
+    return false
+  }, [
+    processedContent,
+    mediaUrl,
+    articleMetadata,
+    musicTrackMetadata,
+    kind,
+    pollCreateData,
+    highlightData,
+    mediaImetaTags
+  ])
+
   const selectableClass = 'select-text'
   const withClientBadge = (node: ReactNode) =>
     addClientTag ? (
@@ -257,6 +288,14 @@ export default function Preview({
       node
     )
 
+  if (!hasPreviewBody) {
+    return (
+      <Card className={cn('p-3 text-sm text-muted-foreground', className, selectableClass)}>
+        {t('Post editor preview empty')}
+      </Card>
+    )
+  }
+
   // For polls, use ContentPreview to show poll properly
   if (kind === ExtendedKind.POLL) {
     return withClientBadge(

src/components/PostEditor/PostTextarea/index.tsx

@@ -19,6 +19,7 @@ import {
   Dispatch,
   forwardRef,
   SetStateAction,
+  useCallback,
   useEffect,
   useImperativeHandle,
   useMemo,
@@ -34,6 +35,7 @@ import mentionSuggestion from './Mention/suggestion'
 import Preview from './Preview'
 import { HighlightData } from '../HighlightEditor'
 import { getKindDescription } from '@/lib/kind-description'
+import type { TContentWarningDraftOptions } from '@/lib/content-warning'
 
 export type TPostTextareaHandle = {
   appendText: (text: string, addNewline?: boolean) => void
@@ -95,6 +97,7 @@ const PostTextarea = forwardRef<
     }
     extraPreviewTags?: string[][]
     addClientTag?: boolean
+    contentWarning?: TContentWarningDraftOptions
   }
 >(
   (
@@ -120,7 +123,8 @@ const PostTextarea = forwardRef<
       articleMetadata,
       musicTrackMetadata,
       extraPreviewTags,
-      addClientTag = true
+      addClientTag = true,
+      contentWarning
     },
     ref
   ) => {
@@ -141,8 +145,23 @@ const PostTextarea = forwardRef<
     const onSubmitRef = useRef(onSubmit)
     onSubmitRef.current = onSubmit
     const [activeTab, setActiveTab] = useState('edit')
+    const activeTabRef = useRef(activeTab)
+    activeTabRef.current = activeTab
+    const [previewContent, setPreviewContent] = useState('')
     const editorRef = useRef<Editor | null>(null)
 
+    const syncPreviewFromEditor = useCallback(() => {
+      const ed = editorRef.current
+      const live = ed ? parseEditorJsonToText(ed.getJSON()) : text
+      setPreviewContent(live)
+      if (ed) setText(live)
+      return live
+    }, [setText, text])
+
+    const previewSurfaceClass = cn(
+      isSmallScreen ? 'min-h-[min(36dvh,17rem)]' : 'min-h-52'
+    )
+
     const kindDescription = useMemo(() => getKindDescription(kind), [kind])
 
     const placeholderText = useMemo(
@@ -208,11 +227,17 @@ const PostTextarea = forwardRef<
       },
       content: postEditorCache.getPostContentCache({ kind, defaultContent, parentEvent }),
       onUpdate(props) {
-        setText(parseEditorJsonToText(props.editor.getJSON()))
+        const live = parseEditorJsonToText(props.editor.getJSON())
+        setText(live)
+        if (activeTabRef.current === 'preview') {
+          setPreviewContent(live)
+        }
         postEditorCache.setPostContentCache({ kind, defaultContent, parentEvent }, props.editor.getJSON())
       },
       onCreate(props) {
-        setText(parseEditorJsonToText(props.editor.getJSON()))
+        const live = parseEditorJsonToText(props.editor.getJSON())
+        setText(live)
+        setPreviewContent(live)
       }
     })
 
@@ -284,6 +309,7 @@ const PostTextarea = forwardRef<
           // Also clear the cache
           postEditorCache.setPostContentCache({ kind, defaultContent, parentEvent }, editor.getJSON())
           setText('')
+          setPreviewContent('')
         }
       },
       syncFromPostCache: () => {
@@ -293,7 +319,9 @@ const PostTextarea = forwardRef<
         if (next === undefined) return
         editor.chain().setContent(next).run()
         const json = editor.getJSON()
-        setText(parseEditorJsonToText(json))
+        const live = parseEditorJsonToText(json)
+        setText(live)
+        setPreviewContent(live)
         postEditorCache.setPostContentCache({ kind, defaultContent, parentEvent }, json)
       },
       getText: () => {
@@ -312,7 +340,9 @@ const PostTextarea = forwardRef<
         const json = plainTextToTipTapDoc(plain)
         editor.chain().setContent(json).run()
         postEditorCache.setPostContentCache({ kind, defaultContent, parentEvent }, editor.getJSON())
-        setText(parseEditorJsonToText(editor.getJSON()))
+        const live = parseEditorJsonToText(editor.getJSON())
+        setText(live)
+        setPreviewContent(live)
       }
     }))
 
@@ -324,7 +354,12 @@ const PostTextarea = forwardRef<
     return (
       <Tabs
         value={activeTab}
-        onValueChange={setActiveTab}
+        onValueChange={(tab) => {
+          if (tab === 'preview') {
+            syncPreviewFromEditor()
+          }
+          setActiveTab(tab)
+        }}
         className={cn(
           isSmallScreen ? 'flex min-h-0 flex-1 flex-col gap-2 overflow-hidden' : 'space-y-2'
         )}
@@ -371,15 +406,19 @@ const PostTextarea = forwardRef<
         </TabsContent>
         <TabsContent
           value="preview"
-          className="mt-0 data-[state=inactive]:hidden focus-visible:ring-0 focus-visible:ring-offset-0"
+          forceMount
+          className={cn(
+            'mt-0 data-[state=inactive]:hidden focus-visible:ring-0 focus-visible:ring-offset-0',
+            isSmallScreen && 'flex min-h-0 flex-1 flex-col overflow-hidden'
+          )}
         >
-          <div className="space-y-2">
-            <div className="text-xs text-muted-foreground">
+          <div className={cn('space-y-2', isSmallScreen && 'flex min-h-0 flex-1 flex-col')}>
+            <div className="text-xs text-muted-foreground shrink-0">
               kind {kindDescription.number}: {kindDescription.description}
             </div>
             <Preview
-              content={text}
-              className={className}
+              content={previewContent}
+              className={previewSurfaceClass}
               kind={kind}
               highlightData={highlightData}
               pollCreateData={pollCreateData}
@@ -389,6 +428,7 @@ const PostTextarea = forwardRef<
               musicTrackMetadata={musicTrackMetadata}
               extraPreviewTags={extraPreviewTags}
               addClientTag={addClientTag}
+              contentWarning={contentWarning}
             />
           </div>
         </TabsContent>

src/i18n/locales/en.ts

@@ -2128,9 +2128,13 @@ export default {
     'Content warning hint':
       'Adds a NIP-36 content-warning tag so readers must opt in to view this note.',
     'Content warning preset': 'Warning label',
+    'Content warning preset placeholder': 'Choose a warning label…',
     'Custom label…': 'Custom label…',
     'Content warning custom placeholder': 'e.g. Violence, Trigger warning',
     'Content warning label': '⚠ {{label}}',
+    'Post editor content warning summary':
+      'Content warning added: {{label}}. Open Advanced to change.',
+    'Post editor preview empty': 'Nothing to preview yet.',
     'Maximum {{max}} invitees': 'Maximum {{max}} invitees',
     'Maximum {{max}} invitees allowed': 'Maximum {{max}} invitees allowed',
     Medium: 'Medium',

src/lib/advanced-event-lab-slice.test.ts

@@ -33,4 +33,13 @@ describe('serializePublishPreviewLabJson', () => {
     const o = JSON.parse(json) as { tags: string[][] }
     expect(o.tags.some((t) => t[0] === 'client')).toBe(false)
   })
+
+  it('merges composer content-warning settings into preview tags', () => {
+    const json = serializePublishPreviewLabJson(
+      { kind: 1, content: 'hi', tags: [['content-warning', 'Spoilers']] },
+      { contentWarning: { isNsfw: true, contentWarningLabel: 'Violence' } }
+    )
+    const o = JSON.parse(json) as { tags: string[][] }
+    expect(o.tags.filter((t) => t[0] === 'content-warning')).toEqual([['content-warning', 'Violence']])
+  })
 })

src/lib/advanced-event-lab-slice.ts

@@ -1,3 +1,7 @@
+import {
+  mergeContentWarningTagsFromDraftOptions,
+  type TContentWarningDraftOptions
+} from '@/lib/content-warning'
 import {
   applyImwaldAttributionTags,
   collectUploadImetaTagsForContentUrls,
@@ -17,10 +21,13 @@ export type AdvancedEventLabSlice = {
  */
 export function serializePublishPreviewLabJson(
   slice: AdvancedEventLabSlice,
-  options?: { addClientTag?: boolean }
+  options?: { addClientTag?: boolean; contentWarning?: TContentWarningDraftOptions }
 ): string {
   const tags = slice.tags.map((row) => [...row])
   mergeUploadImetaTagsInto(tags, collectUploadImetaTagsForContentUrls(slice.content))
+  if (options?.contentWarning) {
+    mergeContentWarningTagsFromDraftOptions(tags, options.contentWarning)
+  }
   const draft: TDraftEvent = {
     kind: slice.kind,
     content: slice.content,

src/lib/content-warning.test.ts

@@ -0,0 +1,36 @@
+import { describe, expect, it } from 'vitest'
+import {
+  appendContentWarningTagIfNeeded,
+  contentWarningDraftOptions,
+  mergeContentWarningTagsFromDraftOptions
+} from '@/lib/content-warning'
+
+describe('content-warning draft helpers', () => {
+  it('defaults to NSFW when enabled without an explicit label', () => {
+    expect(contentWarningDraftOptions(true, '')).toEqual({
+      isNsfw: true,
+      contentWarningLabel: 'NSFW'
+    })
+  })
+
+  it('appends the selected label when enabled', () => {
+    const tags: string[][] = []
+    appendContentWarningTagIfNeeded(tags, contentWarningDraftOptions(true, 'Violence'))
+    expect(tags).toEqual([['content-warning', 'Violence']])
+  })
+
+  it('does not append a tag when disabled', () => {
+    const tags: string[][] = []
+    appendContentWarningTagIfNeeded(tags, contentWarningDraftOptions(false, 'NSFW'))
+    expect(tags).toEqual([])
+  })
+
+  it('replaces manual lab content-warning tags with composer settings', () => {
+    const tags: string[][] = [['content-warning', 'Spoilers'], ['t', 'test']]
+    mergeContentWarningTagsFromDraftOptions(tags, contentWarningDraftOptions(true, 'Violence'))
+    expect(tags).toEqual([['t', 'test'], ['content-warning', 'Violence']])
+
+    mergeContentWarningTagsFromDraftOptions(tags, contentWarningDraftOptions(false, ''))
+    expect(tags).toEqual([['t', 'test']])
+  })
+})

src/lib/content-warning.ts

@@ -56,6 +56,17 @@ export function contentWarningDraftOptions(
   return { isNsfw: true, contentWarningLabel: normalizeContentWarningLabel(label) }
 }
 
+/** Apply composer content-warning settings over any manual lab tags. */
+export function mergeContentWarningTagsFromDraftOptions(
+  tags: string[][],
+  options: TContentWarningDraftOptions
+): void {
+  for (let i = tags.length - 1; i >= 0; i--) {
+    if (tags[i][0] === 'content-warning') tags.splice(i, 1)
+  }
+  appendContentWarningTagIfNeeded(tags, options)
+}
+
 export function appendContentWarningTagIfNeeded(
   tags: string[][],
   options: TContentWarningDraftOptions