From c710a15879dd3ff91b10056a56f888bb53076e90 Mon Sep 17 00:00:00 2001
From: Jon Staab <jstaab@protonmail.com>
Date: Fri, 25 Sep 2026 16:19:07 -0700
Subject: [PATCH] Merge the room and DM composers into Compose and share their
 reply, edit and share state through ComposeArea

---
 e2e/specs/articles-threads.spec.ts            |   2 +-
 e2e/specs/composer.spec.ts                    |   2 +-
 src/app/components/Chat.svelte                | 115 +++--------
 src/app/components/ChatCompose.svelte         | 189 ------------------
 .../{RoomCompose.svelte => Compose.svelte}    | 109 +++++-----
 src/app/components/ComposeArea.svelte         | 122 +++++++++++
 src/app/components/RoomChat.svelte            | 120 ++---------
 src/app/share.ts                              |   4 +-
 8 files changed, 233 insertions(+), 430 deletions(-)
 delete mode 100644 src/app/components/ChatCompose.svelte
 rename src/app/components/{RoomCompose.svelte => Compose.svelte} (71%)
 create mode 100644 src/app/components/ComposeArea.svelte

diff --git a/e2e/specs/articles-threads.spec.ts b/e2e/specs/articles-threads.spec.ts
index 9618b164..66dc46c3 100644
--- a/e2e/specs/articles-threads.spec.ts
+++ b/e2e/specs/articles-threads.spec.ts
@@ -25,7 +25,7 @@ type Seeded = {readonly id: string; readonly event: SignedEvent}
 const composerForm = (page: Page) =>
   page.locator("form").filter({has: page.locator(".note-editor")})
 
-// RoomCompose's join is the upload button and then the compose menu.
+// A room composer's join is the upload button and then the compose menu.
 const openComposeMenu = (page: Page) =>
   page
     .locator("form")
diff --git a/e2e/specs/composer.spec.ts b/e2e/specs/composer.spec.ts
index 764ff22b..3ad0fb3d 100644
--- a/e2e/specs/composer.spec.ts
+++ b/e2e/specs/composer.spec.ts
@@ -24,7 +24,7 @@ import {
 
 const suggestions = (page: Page) => page.locator(".tiptap-suggestions__item")
 
-// RoomCompose leads with a two button group: upload, then the create menu.
+// A room composer leads with a two button group: upload, then the create menu.
 const roomUploadButton = (page: Page) => page.locator(".room__compose-inner .join-item").first()
 
 const chatUploadButton = (page: Page) => page.locator("button[data-tip='Add an image']")
diff --git a/src/app/components/Chat.svelte b/src/app/components/Chat.svelte
index 5eb8b285..5b6f9dc7 100644
--- a/src/app/components/Chat.svelte
+++ b/src/app/components/Chat.svelte
@@ -6,7 +6,6 @@
     int,
     ms,
     partition,
-    ifLet,
     spec,
     nthEq,
     nthNe,
@@ -16,8 +15,7 @@
     enumerate,
     formatTimestampAsDate,
   } from "@welshman/lib"
-  import type {Maybe} from "@welshman/lib"
-  import type {TrustedEvent, EventTemplate, EventContent} from "@welshman/util"
+  import type {TrustedEvent, EventTemplate} from "@welshman/util"
   import {makeEvent, userInbox, DIRECT_MESSAGE, DIRECT_MESSAGE_FILE} from "@welshman/util"
   import {parse, isLink} from "@welshman/content"
   import {MessagingRelayLists, Thunks} from "@welshman/app"
@@ -36,18 +34,14 @@
   import ProfileDetail from "@app/components/ProfileDetail.svelte"
   import ChatMembers from "@app/components/ChatMembers.svelte"
   import ChatMessage from "@app/components/ChatMessage.svelte"
-  import ChatCompose from "@app/components/ChatCompose.svelte"
-  import ComposeEdit from "@app/components/ComposeEdit.svelte"
-  import ComposeParent from "@app/components/ComposeParent.svelte"
+  import ComposeArea, {type ComposeValues} from "@app/components/ComposeArea.svelte"
   import ThunkToast from "@app/components/ThunkToast.svelte"
   import {app, deletes, router, user, wraps} from "@app/core"
   import {loadSendDelay} from "@app/settings"
   import {deriveChat, makeChatId} from "@app/chats"
   import {makeFeedContext} from "@app/feeds"
   import {navigate, pushModal} from "@app/modal"
-  import {DraftKey, type Draft} from "@app/drafts"
   import {prependParent} from "@app/rooms"
-  import {pendingShare, type Share} from "@app/share"
   import {pushToast} from "@app/toast"
 
   type Props = {
@@ -62,7 +56,6 @@
 
   onDestroy(context.cleanup)
   const chat = deriveChat(chatId)
-  const draftKey = new DraftKey<Draft>(`dm:${chatId}`)
   const others = remove($user.pubkey, pubkeys)
   const messagingRelayLists = $app.use(MessagingRelayLists).index.$
   const missingRelayLists = $derived(others.filter(pk => !$messagingRelayLists.has(pk)))
@@ -74,35 +67,19 @@
 
   const back = () => navigate("/chat")
 
-  const replyTo = (event: TrustedEvent) => {
-    parent = event
-    compose?.focus()
-  }
+  const replyTo = (event: TrustedEvent) => composeArea?.reply(event)
 
-  const clearParent = () => {
-    parent = undefined
-  }
-
-  const clearEventToEdit = () => {
-    eventToEdit = undefined
-  }
-
-  const onSubmit = async (params: EventContent) => {
+  const onSubmit = async ({parent, edit, ...values}: ComposeValues) => {
     const ptags = others.map(pk => ["p", pk])
 
-    // Remove p tags since they result in forking the conversation
-    params.tags = params.tags.filter(nthNe(0, "p"))
+    // p tags would fork the conversation, so drop them before quoting the parent
+    const params = await prependParent(parent, {
+      content: values.content,
+      tags: values.tags.filter(nthNe(0, "p")),
+    })
 
-    // Add our reply quote to content
-    params = await prependParent(parent, params)
-
-    if (eventToEdit) {
-      // An edit that changes nothing is just a dismissal
-      if (eventToEdit.content === params.content) {
-        return clearEventToEdit()
-      }
-
-      const command = await $deletes.deleteEvent(eventToEdit)
+    if (edit) {
+      const command = await $deletes.deleteEvent(edit)
 
       await $wraps.publish({event: command.event, recipients: pubkeys, pow: 16})
     }
@@ -120,7 +97,7 @@
           makeEvent(kind, {
             content,
             tags: [...tags, ...ptags],
-            created_at: eventToEdit?.created_at,
+            created_at: edit?.created_at,
           }),
         )
       }
@@ -155,10 +132,6 @@
       ),
     )
 
-    // Publishing reads each recipient's messaging relays first, and a failed read throws before any thunk.
-    clearParent()
-    clearEventToEdit()
-
     pushToast({
       timeout: 30_000,
       children: {
@@ -168,46 +141,15 @@
     })
   }
 
-  const onEscape = () => {
-    clearParent()
-    clearEventToEdit()
-  }
-
   const canEditEvent = (event: TrustedEvent) =>
     event.pubkey === $user.pubkey &&
     event.kind === DIRECT_MESSAGE &&
     event.created_at >= ago(500, MINUTE)
 
-  const onEditEvent = (event: TrustedEvent) => {
-    clearParent()
-    eventToEdit = event
-  }
-
-  const onEditPrevious = () => ifLet($chat?.messages.find(canEditEvent), onEditEvent)
+  const onEditEvent = (event: TrustedEvent) => composeArea?.edit(event)
 
   let loading = $state(true)
-  let compose: ChatCompose | undefined = $state()
-  let parent: TrustedEvent | undefined = $state()
-  let eventToEdit: TrustedEvent | undefined = $state()
-  let share: Maybe<Share> = $state()
-
-  // Sharing into the conversation already on screen doesn't re-create this component.
-  $effect(() => {
-    if ($pendingShare) {
-      share = $pendingShare
-      pendingShare.set(undefined)
-    }
-  })
-
-  const initialValues = $derived.by((): Share | undefined => {
-    if (eventToEdit) {
-      return {type: "text", value: eventToEdit.content}
-    }
-
-    if (share) {
-      return share
-    }
-  })
+  let composeArea: ComposeArea | undefined = $state()
 
   const elements = $derived.by(() => {
     const elements = []
@@ -335,25 +277,14 @@
     </p>
   </PageContent>
 
-  <div class="room__compose bg-surface">
-    <div class="flex flex-col gap-px">
-      {#if parent}
-        <ComposeParent event={parent} clear={clearParent} verb="Replying to" />
-      {/if}
-      {#if eventToEdit}
-        <ComposeEdit clear={clearEventToEdit} />
-      {/if}
-    </div>
-    {#key initialValues}
-      <ChatCompose
-        bind:this={compose}
-        {onSubmit}
-        {onEscape}
-        {onEditPrevious}
-        {initialValues}
-        dictationKey={draftKey.key}
-        draftKey={eventToEdit ? undefined : draftKey}
-        disabled={Boolean(missingRelayLists.length)} />
-    {/key}
+  <div class="room__compose bg-surface px-2">
+    <ComposeArea
+      {onSubmit}
+      encryptFiles
+      draftKey="dm:{chatId}"
+      messages={$chat?.messages || []}
+      canEdit={canEditEvent}
+      disabled={Boolean(missingRelayLists.length)}
+      bind:this={composeArea} />
   </div>
 </div>
diff --git a/src/app/components/ChatCompose.svelte b/src/app/components/ChatCompose.svelte
deleted file mode 100644
index 97af9a03..00000000
--- a/src/app/components/ChatCompose.svelte
+++ /dev/null
@@ -1,189 +0,0 @@
-<script lang="ts">
-  import {onDestroy, onMount} from "svelte"
-  import {writable} from "svelte/store"
-  import cx from "classnames"
-  import type {MaybeAsync} from "@welshman/lib"
-  import type {EventContent} from "@welshman/util"
-  import {escapeHtml, isMobile, preventDefault} from "@lib/html"
-  import GallerySend from "@assets/icons/gallery-send.svg?dataurl"
-  import Plane from "@assets/icons/plane-2.svg?dataurl"
-  import Icon from "@lib/components/Icon.svelte"
-  import Button from "@lib/components/Button.svelte"
-  import Spinner from "@lib/components/Spinner.svelte"
-  import DictationButton from "@app/components/DictationButton.svelte"
-  import EditorEmojiButton from "@app/components/EditorEmojiButton.svelte"
-  import EditorContent from "@app/editor/EditorContent.svelte"
-  import {makeEditor} from "@app/editor"
-  import {getDictation} from "@app/dictation"
-  import {type DraftKey, type Draft} from "@app/drafts"
-  import {pushToast} from "@app/toast"
-  import type {Share} from "@app/share"
-
-  type Props = {
-    disabled?: boolean
-    dictationKey: string
-    draftKey?: DraftKey<Draft>
-    onEscape?: () => void
-    onEditPrevious?: () => void
-    onSubmit: (event: EventContent) => MaybeAsync<void>
-    initialValues?: Share
-  }
-
-  const {
-    initialValues,
-    disabled = false,
-    dictationKey,
-    draftKey,
-    onEscape,
-    onEditPrevious,
-    onSubmit,
-  }: Props = $props()
-
-  const autofocus = !isMobile && !disabled
-
-  const uploading = writable(false)
-
-  const editorClass = $derived(
-    cx("chat-editor grow overflow-hidden", {
-      "pointer-events-none opacity-50": disabled,
-    }),
-  )
-
-  export const focus = () => editor.then(ed => ed.chain().focus().run())
-
-  export const canEnterEditPrevious = () =>
-    editor.then(ed => ed.getText({blockSeparator: "\n"}) === "")
-
-  const handleKeyDown = async (event: KeyboardEvent) => {
-    if (event.key === "Escape") {
-      onEscape?.()
-    }
-
-    if (event.key === "ArrowUp" && (await canEnterEditPrevious())) {
-      onEditPrevious?.()
-    }
-  }
-
-  const uploadFiles = () => editor.then(ed => ed.chain().selectFiles().run())
-
-  // Tiptap parses a string handed to insertContent as html, so an angle bracket would eat the sentence.
-  const insertTranscript = async (text: string) => {
-    const ed = await editor
-
-    ed.chain().focus().insertContent(escapeHtml(text)).run()
-  }
-
-  const attachVoiceNote = async (audio: File) => {
-    const ed = await editor
-
-    ed.chain()
-      .addFile(audio, ed.state.selection.from + 1)
-      .run()
-  }
-
-  const submit = async () => {
-    if ($uploading || disabled) {
-      return
-    }
-
-    const ed = await editor
-    const content = ed.getText({blockSeparator: "\n"}).trim()
-    const tags = ed.storage.nostr.getEditorTags()
-
-    if (!content) {
-      return
-    }
-
-    try {
-      await onSubmit({content, tags})
-    } catch (error) {
-      console.error("Failed to send message", error)
-
-      return pushToast({theme: "error", message: "Failed to send your message."})
-    }
-
-    draftKey?.clear()
-    ed.chain().clearContent(true).run()
-  }
-
-  let content = $state(
-    initialValues?.type === "text" ? initialValues.value : (draftKey?.get()?.content ?? ""),
-  )
-  let dictating = $state(Boolean(getDictation(dictationKey)))
-
-  const onChange = (json: object) => {
-    content = json
-  }
-
-  const empty = writable(true)
-
-  const editor = makeEditor({
-    content,
-    empty,
-    submit,
-    uploading,
-    onChange,
-    aggressive: true,
-    encryptFiles: true,
-  })
-
-  $effect(() => {
-    if ($empty) {
-      draftKey?.clear()
-    } else {
-      draftKey?.set({content})
-    }
-  })
-
-  onMount(async () => {
-    const ed = await editor
-    ed.view.dom.addEventListener("keydown", handleKeyDown)
-
-    if (initialValues?.type === "file") {
-      ed.chain()
-        .addFile(initialValues.value, ed.state.selection.from + 1)
-        .run()
-    }
-  })
-
-  onDestroy(async () => {
-    const ed = await editor
-    ed?.view?.dom.removeEventListener("keydown", handleKeyDown)
-  })
-</script>
-
-<form class="relative z-feature flex gap-2 p-2" onsubmit={preventDefault(submit)}>
-  <Button
-    data-tip="Add an image"
-    class="button button-neutral button-square tip tip-right h-10 w-10 min-w-10 rounded-2xl transition-colors"
-    disabled={$uploading || disabled}
-    onclick={uploadFiles}>
-    {#if $uploading}
-      <Spinner size="xs" />
-    {:else}
-      <Icon icon={GallerySend} />
-    {/if}
-  </Button>
-  <EditorEmojiButton
-    {editor}
-    disabled={$uploading || disabled}
-    class="button button-neutral button-square tip tip-right h-10 w-10 min-w-10 rounded-2xl transition-colors" />
-  <div class={editorClass} aria-disabled={disabled}>
-    <EditorContent {autofocus} {editor} />
-  </div>
-  {#if dictating || ($empty && !disabled)}
-    <DictationButton
-      key={dictationKey}
-      bind:dictating
-      onTranscript={insertTranscript}
-      onVoiceNote={attachVoiceNote} />
-  {:else}
-    <Button
-      data-tip="{window.navigator.platform.includes('Mac') ? 'cmd' : 'ctrl'}+enter to send"
-      class="button button-primary button-circle tip tip-left h-10 w-10 min-w-10"
-      disabled={$uploading || disabled}
-      onclick={submit}>
-      <Icon icon={Plane} />
-    </Button>
-  {/if}
-</form>
diff --git a/src/app/components/RoomCompose.svelte b/src/app/components/Compose.svelte
similarity index 71%
rename from src/app/components/RoomCompose.svelte
rename to src/app/components/Compose.svelte
index bbdaf654..cdd855ba 100644
--- a/src/app/components/RoomCompose.svelte
+++ b/src/app/components/Compose.svelte
@@ -1,5 +1,7 @@
 <script lang="ts">
+  import {onDestroy, onMount} from "svelte"
   import {writable} from "svelte/store"
+  import cx from "classnames"
   import type {Maybe, MaybeAsync} from "@welshman/lib"
   import {MESSAGE} from "@welshman/util"
   import type {EventContent} from "@welshman/util"
@@ -23,35 +25,52 @@
   import {pushToast} from "@app/toast"
   import {DraftKey, type Draft} from "@app/drafts"
   import type {Share} from "@app/share"
-  import {onDestroy, onMount} from "svelte"
 
   type Props = {
     url?: string
     h?: string
+    draftKey: string
+    encryptFiles?: boolean
+    disabled?: boolean
+    initialValues?: Share
     onEscape?: () => void
     onEditPrevious?: () => void
     onSubmit: (event: EventContent) => MaybeAsync<void>
-    initialValues?: Share
   }
 
-  const {url, h, initialValues, onEscape, onEditPrevious, onSubmit}: Props = $props()
+  const {
+    url,
+    h,
+    draftKey,
+    encryptFiles = false,
+    disabled = false,
+    initialValues,
+    onEscape,
+    onEditPrevious,
+    onSubmit,
+  }: Props = $props()
 
-  const key = `room:${url ?? ""}:${h ?? ""}`
+  const draft = initialValues ? undefined : new DraftKey<Draft>(draftKey)
 
-  const draftKey = (url || h) && !initialValues ? new DraftKey<Draft>(key) : undefined
-
-  const autofocus = !isMobile
+  const autofocus = !isMobile && !disabled
 
   const uploading = writable(false)
 
   const text = writable("")
 
-  const commandTarget = {
-    url,
-    kind: MESSAGE,
-    pubkey: $app.user?.pubkey,
-    tags: h ? [["h", h]] : [],
-  }
+  const commandTarget = url
+    ? {url, kind: MESSAGE, pubkey: $app.user?.pubkey, tags: h ? [["h", h]] : []}
+    : undefined
+
+  const buttonClass = url
+    ? "join-item h-10 w-10 min-w-10 button button-neutral"
+    : "button button-neutral button-square tip tip-right h-10 w-10 min-w-10 rounded-2xl transition-colors"
+
+  const editorClass = $derived(
+    cx("chat-editor grow overflow-hidden", {
+      "pointer-events-none opacity-50": disabled,
+    }),
+  )
 
   export const focus = () => editor.then(ed => ed.chain().focus().run())
 
@@ -96,12 +115,12 @@
       .run()
   }
 
-  const showPopover = () => tippy?.show()
+  const showMenu = () => tippy?.show()
 
-  const hidePopover = () => tippy?.hide()
+  const hideMenu = () => tippy?.hide()
 
   const submit = async () => {
-    if ($uploading || sending) {
+    if ($uploading || disabled || sending) {
       return
     }
 
@@ -121,16 +140,16 @@
       sending = false
     }
 
-    draftKey?.clear()
+    draft?.clear()
     ed.chain().clearContent(true).run()
   }
 
   let sending = false
   let tippy: Maybe<TippyController> = $state()
   let content = $state(
-    initialValues?.type === "text" ? initialValues.value : (draftKey?.get()?.content ?? ""),
+    initialValues?.type === "text" ? initialValues.value : (draft?.get()?.content ?? ""),
   )
-  let dictating = $state(Boolean(getDictation(key)))
+  let dictating = $state(Boolean(getDictation(draftKey)))
 
   const onChange = (json: object) => {
     content = json
@@ -147,14 +166,15 @@
     uploading,
     onChange,
     commandTarget,
+    encryptFiles,
     aggressive: true,
   })
 
   $effect(() => {
     if ($empty) {
-      draftKey?.clear()
+      draft?.clear()
     } else {
-      draftKey?.set({content})
+      draft?.set({content})
     }
   })
 
@@ -175,12 +195,15 @@
   })
 </script>
 
-<CommandArgBar target={commandTarget} content={$text} insert={insertCommandToken} />
+{#if commandTarget}
+  <CommandArgBar target={commandTarget} content={$text} insert={insertCommandToken} />
+{/if}
 <form class="relative flex gap-2 py-2" onsubmit={preventDefault(submit)}>
-  <div class="join">
+  <div class={cx({join: url, "flex gap-2": !url})}>
     <Button
-      class="join-item h-10 w-10 min-w-10 button button-neutral"
-      disabled={$uploading}
+      data-tip="Add an image"
+      class={buttonClass}
+      disabled={$uploading || disabled}
       onclick={uploadFiles}>
       {#if $uploading}
         <Spinner size="xs" />
@@ -188,29 +211,25 @@
         <Icon icon={GallerySend} />
       {/if}
     </Button>
-    <Button
-      disabled={$uploading}
-      onclick={showPopover}
-      class="join-item h-10 w-10 min-w-10 button button-neutral">
-      <Tippy
-        bind:controller={tippy}
-        component={ComposeMenu}
-        props={{url, h, onClick: hidePopover}}
-        params={{trigger: "manual", interactive: true}}>
-        <Icon icon={WidgetAdd} />
-      </Tippy>
-    </Button>
-    <EditorEmojiButton
-      {editor}
-      disabled={$uploading}
-      class="join-item h-10 w-10 min-w-10 button button-neutral" />
+    {#if url}
+      <Button disabled={$uploading} onclick={showMenu} class={buttonClass}>
+        <Tippy
+          bind:controller={tippy}
+          component={ComposeMenu}
+          props={{url, h, onClick: hideMenu}}
+          params={{trigger: "manual", interactive: true}}>
+          <Icon icon={WidgetAdd} />
+        </Tippy>
+      </Button>
+    {/if}
+    <EditorEmojiButton {editor} disabled={$uploading || disabled} class={buttonClass} />
   </div>
-  <div class="chat-editor grow overflow-hidden">
+  <div class={editorClass} aria-disabled={disabled}>
     <EditorContent {autofocus} {editor} />
   </div>
-  {#if dictating || $empty}
+  {#if dictating || ($empty && !disabled)}
     <DictationButton
-      {key}
+      key={draftKey}
       bind:dictating
       onTranscript={insertTranscript}
       onVoiceNote={attachVoiceNote} />
@@ -218,7 +237,7 @@
     <Button
       data-tip="{window.navigator.platform.includes('Mac') ? 'cmd' : 'ctrl'}+enter to send"
       class="button button-primary button-circle flex justify-center items-center tip tip-left h-10 w-10 min-w-10"
-      disabled={$uploading}
+      disabled={$uploading || disabled}
       onclick={submit}>
       <Icon icon={Plane} />
     </Button>
diff --git a/src/app/components/ComposeArea.svelte b/src/app/components/ComposeArea.svelte
new file mode 100644
index 00000000..4456f64e
--- /dev/null
+++ b/src/app/components/ComposeArea.svelte
@@ -0,0 +1,122 @@
+<script module lang="ts">
+  import type {TrustedEvent, EventContent} from "@welshman/util"
+
+  export type ComposeValues = EventContent & {
+    parent?: TrustedEvent
+    share?: TrustedEvent
+    edit?: TrustedEvent
+  }
+</script>
+
+<script lang="ts">
+  import type {ComponentProps} from "svelte"
+  import {page} from "$app/stores"
+  import {ifLet} from "@welshman/lib"
+  import type {Maybe} from "@welshman/lib"
+  import Compose from "@app/components/Compose.svelte"
+  import ComposeEdit from "@app/components/ComposeEdit.svelte"
+  import ComposeParent from "@app/components/ComposeParent.svelte"
+  import {pendingShare, type Share} from "@app/share"
+
+  type Props = Pick<
+    ComponentProps<typeof Compose>,
+    "url" | "h" | "draftKey" | "encryptFiles" | "disabled"
+  > & {
+    messages: TrustedEvent[]
+    canEdit: (event: TrustedEvent) => boolean
+    onSubmit: (values: ComposeValues) => Promise<void>
+  }
+
+  const {messages, canEdit, onSubmit, ...props}: Props = $props()
+
+  export const reply = (event: TrustedEvent) => {
+    parent = event
+    compose?.focus()
+  }
+
+  export const edit = (event: TrustedEvent) => {
+    clearParent()
+    clearShare()
+    eventToEdit = event
+  }
+
+  const clearParent = () => {
+    parent = undefined
+  }
+
+  const clearShare = () => {
+    share = undefined
+  }
+
+  const clearEventToEdit = () => {
+    eventToEdit = undefined
+  }
+
+  const onEscape = () => {
+    clearParent()
+    clearShare()
+    clearEventToEdit()
+  }
+
+  const onEditPrevious = () => ifLet(messages.find(canEdit), edit)
+
+  const submit = async ({content, tags}: EventContent) => {
+    // An edit that changes nothing is just a dismissal
+    if (eventToEdit?.content === content) {
+      clearEventToEdit()
+    } else if (content || sharedEvent) {
+      await onSubmit({content, tags, parent, share: sharedEvent, edit: eventToEdit})
+
+      // Only once it's sent, so a failure leaves the reply or edit in place to try again.
+      clearParent()
+      clearShare()
+      clearEventToEdit()
+    }
+  }
+
+  let compose: Compose | undefined = $state()
+  let parent: Maybe<TrustedEvent> = $state()
+  let share: Maybe<Share> = $state()
+  let eventToEdit: Maybe<TrustedEvent> = $state()
+
+  const sharedEvent = $derived(share?.type === "event" ? share.value : undefined)
+
+  const initialValues = $derived.by((): Maybe<Share> => {
+    if (eventToEdit) {
+      return {type: "text", value: eventToEdit.content}
+    }
+
+    if (share) {
+      return share
+    }
+  })
+
+  // Only the conversation a share was sent to takes it, including the one already on screen.
+  $effect(() => {
+    if ($pendingShare?.path === $page.url.pathname) {
+      share = $pendingShare.share
+      pendingShare.set(undefined)
+    }
+  })
+</script>
+
+<div class="flex flex-col gap-px">
+  {#if parent}
+    <ComposeParent url={props.url} event={parent} clear={clearParent} verb="Replying to" />
+  {/if}
+  {#if sharedEvent}
+    <ComposeParent url={props.url} event={sharedEvent} clear={clearShare} verb="Sharing" />
+  {/if}
+  {#if eventToEdit}
+    <ComposeEdit clear={clearEventToEdit} />
+  {/if}
+</div>
+{#key initialValues}
+  <Compose
+    {...props}
+    {initialValues}
+    {onEscape}
+    {onEditPrevious}
+    onSubmit={submit}
+    bind:this={compose} />
+{/key}
diff --git a/src/app/components/RoomChat.svelte b/src/app/components/RoomChat.svelte
index fc0fb600..fc75ad9a 100644
--- a/src/app/components/RoomChat.svelte
+++ b/src/app/components/RoomChat.svelte
@@ -6,9 +6,9 @@
   import type {Readable} from "svelte/store"
   import {debounce} from "throttle-debounce"
   import cx from "classnames"
-  import {now, ifLet, ago, spec, MINUTE} from "@welshman/lib"
+  import {now, ago, spec, MINUTE} from "@welshman/lib"
   import type {Maybe} from "@welshman/lib"
-  import type {TrustedEvent, EventContent} from "@welshman/util"
+  import type {TrustedEvent} from "@welshman/util"
   import {stamp, MESSAGE, RELAY_ADD_MEMBER, ROOM_ADD_MEMBER} from "@welshman/util"
   import {Message} from "@welshman/domain"
   import {MembershipStatus} from "@welshman/app"
@@ -24,9 +24,7 @@
   import Spinner from "@lib/components/Spinner.svelte"
   import VirtualList from "@lib/components/VirtualList.svelte"
   import type {VirtualListController} from "@lib/components/VirtualList.svelte"
-  import RoomCompose from "@app/components/RoomCompose.svelte"
-  import ComposeEdit from "@app/components/ComposeEdit.svelte"
-  import ComposeParent from "@app/components/ComposeParent.svelte"
+  import ComposeArea, {type ComposeValues} from "@app/components/ComposeArea.svelte"
   import RoomItem from "@app/components/RoomItem.svelte"
   import RoomItemAddMember from "@app/components/RoomItemAddMember.svelte"
   import RoomPinnedMessages from "@app/components/RoomPinnedMessages.svelte"
@@ -49,7 +47,6 @@
   import {pageLoading} from "@app/loading"
   import {checked, deferredRoomPath, setChecked} from "@app/notifications"
   import {getPermalinkTarget, highlightedEvent, makeRoomPath} from "@app/routes"
-  import {pendingShare, type Share} from "@app/share"
   import {pushToast} from "@app/toast"
 
   type Props = {
@@ -153,38 +150,14 @@
     }
   }
 
-  const replyTo = (event: TrustedEvent) => {
-    parent = event
-    compose?.focus()
-  }
-
-  const clearParent = () => {
-    parent = undefined
-  }
-
-  const clearShare = () => {
-    share = undefined
-  }
-
-  const clearEventToEdit = () => {
-    eventToEdit = undefined
-  }
-
-  const onSubmit = async ({content, tags}: EventContent) => {
-    if (!content && !sharedEvent) {
-      return
-    }
-
-    if (eventToEdit) {
-      // Don't do anything if message hasn't changed
-      if (eventToEdit.content === content) {
-        return clearEventToEdit()
-      }
+  const replyTo = (event: TrustedEvent) => composeArea?.reply(event)
 
+  const onSubmit = async ({content, tags, parent, share, edit}: ComposeValues) => {
+    if (edit) {
       const protect = await shouldProtect
 
       // Delete the previous message, to be republished below with the same timestamp
-      const command = await $deletes.deleteEvent($state.snapshot(eventToEdit), w =>
+      const command = await $deletes.deleteEvent($state.snapshot(edit), w =>
         w.setProtected(protect),
       )
 
@@ -192,8 +165,8 @@
     }
 
     // A share is a quote rather than a reply, so setParent prepends the reply's own reference ahead of it.
-    if (sharedEvent) {
-      ;({content, tags} = await prependParent(sharedEvent, {content, tags}, url))
+    if (share) {
+      ;({content, tags} = await prependParent(share, {content, tags}, url))
     }
 
     const eventWriter = await toSpace(
@@ -212,7 +185,7 @@
 
     const thunk = $thunks.publish({
       relays: [url],
-      event: stamp(await eventWriter.renderTemplate(), eventToEdit?.created_at),
+      event: stamp(await eventWriter.renderTemplate(), edit?.created_at),
       delay,
     })
 
@@ -225,11 +198,6 @@
         },
       })
     }
-
-    // Only once it's sent, so a failure leaves the reply or edit in place to try again.
-    clearParent()
-    clearShare()
-    clearEventToEdit()
   }
 
   const getElementKey = (element: {id: string}) => element.id
@@ -382,8 +350,6 @@
   let virtualList: Maybe<VirtualListController> = $state()
   let older: Maybe<ReturnType<typeof makeScrollLoader>> = $state()
   let newer: Maybe<ReturnType<typeof makeScrollLoader>> = $state()
-  let share: Maybe<Share> = $state()
-  let parent: TrustedEvent | undefined = $state()
   let element: HTMLElement | undefined = $state()
   let lastVisibleAt = now()
   let newMessagesAfter = $state($checked[$page.url.pathname])
@@ -393,8 +359,7 @@
   let scrolledUp = $state(false)
   let cleanup: () => void
   let events: Readable<TrustedEvent[]> = $state(readable([]))
-  let compose: RoomCompose | undefined = $state()
-  let eventToEdit: TrustedEvent | undefined = $state()
+  let composeArea: ComposeArea | undefined = $state()
 
   // A link into history renders the newest messages first and only then scrolls.
   const awaitingJump = $derived(!isNaN(at) && !jumpSettled)
@@ -408,26 +373,6 @@
     return () => pageLoading.set(false)
   })
 
-  // Sharing into the room already on screen doesn't re-create this component.
-  $effect(() => {
-    if ($pendingShare) {
-      share = $pendingShare
-      pendingShare.set(undefined)
-    }
-  })
-
-  const sharedEvent = $derived(share?.type === "event" ? share.value : undefined)
-
-  const initialValues = $derived.by((): Share | undefined => {
-    if (eventToEdit) {
-      return {type: "text", value: eventToEdit.content}
-    }
-
-    if (share) {
-      return share
-    }
-  })
-
   const clearIsUserScrolling = debounce(150, () => {
     isUserScrolling = false
   })
@@ -519,22 +464,10 @@
     }
   }
 
-  const onEscape = () => {
-    clearParent()
-    clearShare()
-    eventToEdit = undefined
-  }
-
   const canEditEvent = (event: TrustedEvent) =>
     event.pubkey === $user.pubkey && event.created_at >= ago(5, MINUTE)
 
-  const onEditEvent = (event: TrustedEvent) => {
-    clearParent()
-    clearShare()
-    eventToEdit = event
-  }
-
-  const onEditPrevious = () => ifLet($events.toReversed().find(canEditEvent), onEditEvent)
+  const onEditEvent = (event: TrustedEvent) => composeArea?.edit(event)
 
   onMount(() => {
     // Defer rendering until navigation finishes
@@ -711,27 +644,14 @@
             {@render membershipButton("Ask to Join")}
           </div>
         {:else}
-          <div class="flex flex-col gap-px">
-            {#if parent}
-              <ComposeParent {url} event={parent} clear={clearParent} verb="Replying to" />
-            {/if}
-            {#if sharedEvent}
-              <ComposeParent {url} event={sharedEvent} clear={clearShare} verb="Sharing" />
-            {/if}
-            {#if eventToEdit}
-              <ComposeEdit clear={clearEventToEdit} />
-            {/if}
-          </div>
-          {#key initialValues}
-            <RoomCompose
-              {url}
-              {h}
-              {onSubmit}
-              {onEscape}
-              {onEditPrevious}
-              {initialValues}
-              bind:this={compose} />
-          {/key}
+          <ComposeArea
+            {url}
+            {h}
+            {onSubmit}
+            draftKey="room:{url}:{h ?? ''}"
+            messages={$events.toReversed()}
+            canEdit={canEditEvent}
+            bind:this={composeArea} />
         {/if}
       </div>
       {#if h && isVoiceRoom && !voiceConnectedHere}
diff --git a/src/app/share.ts b/src/app/share.ts
index 741a25db..7ef1d597 100644
--- a/src/app/share.ts
+++ b/src/app/share.ts
@@ -16,7 +16,7 @@ export type Share =
   | {type: "text"; value: string}
   | {type: "file"; value: File}
 
-export const pendingShare = writable<Maybe<Share>>(undefined)
+export const pendingShare = writable<Maybe<{path: string; share: Share}>>(undefined)
 
 // Set pendingShare after navigating so the current view doesn't pop it
 export const shareTo = async (
@@ -26,7 +26,7 @@ export const shareTo = async (
 ) => {
   await navigate(path, options)
 
-  pendingShare.set(share)
+  pendingShare.set({path, share})
 }
 
 export const shareEvent = (url: string, noun: string, event: TrustedEvent) => {