Add mentions to chat

This commit is contained in:
dtonon 2026-05-13 16:20:27 +01:00
parent 05dd79f283
commit 2859f7069f
5 changed files with 540 additions and 390 deletions

View file

@ -3,6 +3,7 @@ import { loadNostrUser, type NostrUser } from "@nostr/gadgets/metadata";
import { RELAY_URL, GROUP_ID } from "$lib/config";
import { auth } from "$lib/auth.svelte";
import { ingestNostrUser } from "$lib/profiles.svelte";
import { extractMentionPubkeys, buildPTagHints } from "$lib/mentions";
export type ChatMessageData = {
id: string;
@ -114,10 +115,21 @@ export async function sendChatMessage(
.slice(-3)
.map((m) => m.id.slice(0, 8));
const notifyPubkeys = new Set<string>();
for (const pk of extractMentionPubkeys(content)) notifyPubkeys.add(pk);
if (replyTo && replyTo.pubkey !== ownPubkey)
notifyPubkeys.add(replyTo.pubkey);
notifyPubkeys.delete(ownPubkey);
const hints = await buildPTagHints(notifyPubkeys);
const tags: string[][] = [["h", GROUP_ID]];
if (replyTo) {
tags.push(["q", replyTo.id, RELAY_URL, replyTo.pubkey]);
if (replyTo.pubkey !== ownPubkey) tags.push(["p", replyTo.pubkey]);
}
for (const pk of notifyPubkeys) {
const hint = hints.get(pk);
tags.push(hint ? ["p", pk, hint] : ["p", pk]);
}
if (previousRefs.length > 0) tags.push(["previous", ...previousRefs]);

View file

@ -0,0 +1,81 @@
<script lang="ts">
import * as nip19 from "@nostr/tools/nip19";
import { loadNostrUser, type NostrUser } from "@nostr/gadgets/metadata";
type Props = {
content: string;
profiles?: Record<string, NostrUser>;
};
let { content, profiles = {} }: Props = $props();
type Token =
| { type: "text"; value: string }
| { type: "mention"; pubkey: string; entity: string; fallback: string };
const MENTION_RE = /nostr:(npub1[a-z0-9]+|nprofile1[a-z0-9]+)/gi;
function shortEntity(entity: string): string {
const m = entity.match(/^(npub|nprofile)1/);
if (!m) return entity;
const prefix = m[0];
const rest = entity.slice(prefix.length);
if (rest.length <= 12) return entity;
return `${prefix}${rest.slice(0, 6)}…${rest.slice(-4)}`;
}
const tokens = $derived.by<Token[]>(() => {
const out: Token[] = [];
let last = 0;
for (const m of content.matchAll(MENTION_RE)) {
const start = m.index ?? 0;
const entity = m[1].toLowerCase();
let pubkey: string | null = null;
try {
const decoded = nip19.decode(entity);
if (decoded.type === "npub") pubkey = decoded.data;
else if (decoded.type === "nprofile") pubkey = decoded.data.pubkey;
} catch {
// Invalid bech32, fall through to text
}
if (start > last)
out.push({ type: "text", value: content.slice(last, start) });
if (pubkey) {
out.push({
type: "mention",
pubkey,
entity,
fallback: shortEntity(entity),
});
} else {
out.push({ type: "text", value: m[0] });
}
last = start + m[0].length;
}
if (last < content.length)
out.push({ type: "text", value: content.slice(last) });
return out;
});
let resolvedUsers = $state<Record<string, NostrUser>>({});
$effect(() => {
for (const t of tokens) {
if (t.type !== "mention") continue;
if (resolvedUsers[t.pubkey] || profiles[t.pubkey]) continue;
loadNostrUser(t.pubkey).then((u) => {
resolvedUsers = { ...resolvedUsers, [t.pubkey]: u };
});
}
});
</script>
<span class="break-words whitespace-pre-wrap"
>{#each tokens as t (t)}{#if t.type === "mention"}{@const u =
profiles[t.pubkey] ?? resolvedUsers[t.pubkey]}<a
href="https://njump.me/{t.entity}"
target="_blank"
rel="noopener noreferrer"
class="text-brand hover:underline">@{u?.shortName ?? t.fallback}</a
>{:else}{t.value}{/if}{/each}</span
>

View file

@ -9,6 +9,8 @@
import { auth, openLogin } from "$lib/auth.svelte";
import { withJoin } from "$lib/join.svelte";
import type { NostrUser } from "@nostr/gadgets/metadata";
import MentionAutocomplete from "$lib/components/MentionAutocomplete.svelte";
import ChatContent from "$lib/components/ChatContent.svelte";
type Props = {
expanded?: boolean;
@ -19,7 +21,7 @@
let asideEl: HTMLElement;
let listEl = $state<HTMLDivElement | null>(null);
let inputEl = $state<HTMLTextAreaElement | null>(null);
let inputEl = $state<MentionAutocomplete | null>(null);
let openMenuId = $state<string | null>(null);
let replyTarget = $state<ChatMessageData | null>(null);
let inputValue = $state("");
@ -29,6 +31,9 @@
const messages = $derived(chatStore.messages);
const profiles = $derived(chatStore.profiles);
// Distinct authors of loaded messages — power the @ autocomplete context.
const contextPubkeys = $derived([...new Set(messages.map((m) => m.pubkey))]);
function resolveAuthor(pubkey: string) {
const u: NostrUser | undefined = profiles[pubkey];
return {
@ -45,7 +50,9 @@
}
function truncate(s: string, n = 60) {
const t = s.replace(/\s+/g, " ").trim();
// Collapse mentions to @… so the preview stays readable.
const stripped = s.replace(/nostr:(?:npub1|nprofile1)[a-z0-9]+/gi, "@…");
const t = stripped.replace(/\s+/g, " ").trim();
return t.length > n ? t.slice(0, n) + "…" : t;
}
@ -137,14 +144,14 @@
<aside
bind:this={asideEl}
class="absolute right-0 top-2 h-[calc(100%-0.5rem)] z-10 flex flex-col rounded-tl-xl min-[1540px]:rounded-tr-xl bg-white transition-all duration-200
class="absolute top-2 right-0 z-10 flex h-[calc(100%-0.5rem)] flex-col rounded-tl-xl bg-white transition-all duration-200 min-[1540px]:rounded-tr-xl
{expanded ? 'w-150 shadow-2xl' : 'w-80 shadow-lg'} px-6 py-6"
>
<div class="flex shrink-0 items-center justify-between mb-6">
<span class="text-[1.5rem] text-brand leading-7">Chat</span>
<div class="mb-6 flex shrink-0 items-center justify-between">
<span class="text-brand text-[1.5rem] leading-7">Chat</span>
<button
onclick={onToggle}
class="rounded bg-neutral-100 hover:bg-neutral-200 transition-colors"
class="rounded bg-neutral-100 transition-colors hover:bg-neutral-200"
aria-label={expanded ? "Collapse chat" : "Expand chat"}
>
<svg
@ -171,10 +178,10 @@
<div
bind:this={listEl}
onscroll={onListScroll}
class="flex-1 overflow-y-auto flex flex-col -mr-6 pr-6"
class="-mr-6 flex flex-1 flex-col overflow-y-auto pr-6"
>
{#if messages.length === 0}
<div class="m-auto text-center text-sm text-neutral-400 py-8">
<div class="m-auto py-8 text-center text-sm text-neutral-400">
No messages yet.
</div>
{:else}
@ -184,7 +191,7 @@
{@const parent = msg.replyToId ? getChatMessage(msg.replyToId) : null}
{@const parentAuthor = parent ? resolveAuthor(parent.pubkey) : null}
<div>
<div class="flex items-center gap-2 mb-1">
<div class="mb-1 flex items-center gap-2">
{#if author.picture}
<img
src={author.picture}
@ -193,7 +200,7 @@
/>
{:else}
<span
class="h-6 w-6 shrink-0 rounded-full bg-neutral-200 flex items-center justify-center text-xs font-semibold text-neutral-500"
class="flex h-6 w-6 shrink-0 items-center justify-center rounded-full bg-neutral-200 text-xs font-semibold text-neutral-500"
>
{author.name[0].toUpperCase()}
</span>
@ -216,10 +223,8 @@
{/if}
</div>
{/if}
<p
class="text-neutral-700 leading-5 whitespace-pre-wrap break-words"
>
{msg.content}
<p class="leading-5 text-neutral-700">
<ChatContent content={msg.content} {profiles} />
</p>
<div class="mt-0.5 flex items-center gap-2">
<div class="relative ml-auto">
@ -228,7 +233,7 @@
e.stopPropagation();
openMenuId = openMenuId === msg.id ? null : msg.id;
}}
class="flex items-center justify-center rounded p-0.5 text-neutral-300 hover:text-neutral-500 hover:bg-neutral-100 transition-colors"
class="flex items-center justify-center rounded p-0.5 text-neutral-300 transition-colors hover:bg-neutral-100 hover:text-neutral-500"
aria-label="Message actions"
>
<svg
@ -244,7 +249,7 @@
</button>
{#if openMenuId === msg.id}
<div
class="absolute right-0 bottom-6 z-20 w-36 rounded-lg border border-neutral-100 bg-white py-1 shadow-lg text-sm"
class="absolute right-0 bottom-6 z-20 w-36 rounded-lg border border-neutral-100 bg-white py-1 text-sm shadow-lg"
>
<button
onclick={(e) => {
@ -271,7 +276,7 @@
<div
class="mb-2 flex items-start gap-2 rounded bg-neutral-50 px-2 py-1.5 text-xs text-neutral-600"
>
<div class="flex-1 min-w-0">
<div class="min-w-0 flex-1">
<span class="text-neutral-400">↳ Reply to </span>
<span class="font-medium">{replyAuthor.name}</span>:
<span class="text-neutral-500"
@ -289,19 +294,20 @@
{/if}
{#if sendError}
<div
class="mb-2 rounded bg-red-50 px-2 py-1.5 text-xs text-red-700 border border-red-200"
class="mb-2 rounded border border-red-200 bg-red-50 px-2 py-1.5 text-xs text-red-700"
>
{sendError}
</div>
{/if}
<textarea
<MentionAutocomplete
bind:this={inputEl}
bind:value={inputValue}
onkeydown={onKeydown}
rows="1"
rows={1}
disabled={sending}
placeholder={auth.user ? "Message..." : "Login to send messages"}
class="w-full resize-none rounded border border-neutral-200 px-3 py-2 text-sm focus:outline-none focus:ring-1 focus:ring-brand disabled:opacity-50"
></textarea>
{contextPubkeys}
textareaClass="w-full resize-none rounded border border-neutral-200 px-3 py-2 text-sm focus:outline-none focus:ring-1 focus:ring-brand disabled:opacity-50"
/>
</div>
</aside>

View file

@ -0,0 +1,401 @@
<script lang="ts">
import { tick } from "svelte";
import * as nip19 from "@nostr/tools/nip19";
import { loadRelayList } from "@nostr/gadgets/lists";
import {
profileStore,
searchLocalProfiles,
searchRemoteProfiles,
type ProfileEntry,
} from "$lib/profiles.svelte";
type Props = {
value: string;
disabled?: boolean;
rows?: number;
placeholder?: string;
contextPubkeys?: string[];
textareaClass?: string;
onkeydown?: (e: KeyboardEvent) => void;
onfocus?: () => void;
onblur?: () => void;
};
let {
value = $bindable(),
disabled = false,
rows = 4,
placeholder = "",
contextPubkeys = [],
textareaClass = "",
onkeydown,
onfocus,
onblur,
}: Props = $props();
let textareaEl = $state<HTMLTextAreaElement | null>(null);
let listboxEl = $state<HTMLDivElement | null>(null);
let mentionQuery = $state<string | null>(null);
let mentionStart = $state(0);
let mentionEnd = $state(0);
let mentionRemoteResults = $state<ProfileEntry[]>([]);
let mentionIndex = $state(0);
let userMovedCursor = $state(false);
let anchorAbove = $state(false);
let remoteSearching = $state(false);
let remoteSearchTimer: ReturnType<typeof setTimeout> | null = null;
let remoteSearchAbort: AbortController | null = null;
const contextSet = $derived(new Set(contextPubkeys));
const mentionLocalResults = $derived.by(() => {
if (mentionQuery === null) return [];
if (mentionQuery === "") {
const out: ProfileEntry[] = [];
for (const pk of contextSet) {
const p = profileStore.profiles.get(pk);
if (p) out.push(p);
}
return out
.sort((a, b) =>
(a.name ?? a.displayName ?? "").localeCompare(
b.name ?? b.displayName ?? "",
),
)
.slice(0, 8);
}
return searchLocalProfiles(mentionQuery, {
contextPubkeys: contextSet,
limit: 8,
});
});
// Most-relevant first internally, reversed for display so the best match
// sits at the bottom (closest to the textarea when the dropdown opens above).
const mergedResults = $derived.by(() => {
const seen = new Set<string>();
const out: ProfileEntry[] = [];
for (const p of mentionLocalResults) {
if (seen.has(p.pubkey)) continue;
seen.add(p.pubkey);
out.push(p);
}
for (const p of mentionRemoteResults) {
if (seen.has(p.pubkey)) continue;
seen.add(p.pubkey);
out.push(p);
}
return out.slice(0, 8).reverse();
});
const mentionOpen = $derived(mentionQuery !== null);
const safeMentionIndex = $derived.by(() => {
if (mergedResults.length === 0) return 0;
if (!userMovedCursor) return mergedResults.length - 1;
return Math.min(mentionIndex, mergedResults.length - 1);
});
export function focus(opts: { caretAtEnd?: boolean } = {}) {
const ta = textareaEl;
if (!ta) return;
ta.focus();
if (opts.caretAtEnd) {
const pos = ta.value.length;
ta.setSelectionRange(pos, pos);
}
}
export function getTextarea(): HTMLTextAreaElement | null {
return textareaEl;
}
// Warm the kind:10002 cache for thread participants so relay hints are
// ready by publish time. Best-effort, dedup across focus events.
const prefetched = new Set<string>();
function onTextareaFocus() {
for (const pk of contextPubkeys) {
if (prefetched.has(pk)) continue;
prefetched.add(pk);
loadRelayList(pk).catch(() => {});
}
onfocus?.();
}
function detectMentionContext(text: string, cursor: number) {
const before = text.slice(0, cursor);
const m = before.match(/(?:^|\s)@([^\s@]*)$/);
if (!m) return null;
const query = m[1];
return {
query,
start: cursor - query.length - 1,
end: cursor,
};
}
function scheduleRemoteSearch(query: string, localCount: number) {
if (remoteSearchTimer) clearTimeout(remoteSearchTimer);
remoteSearchAbort?.abort();
if (!query || query.length < 1 || localCount >= 8) {
mentionRemoteResults = [];
remoteSearching = false;
return;
}
remoteSearching = true;
remoteSearchTimer = setTimeout(async () => {
const abort = new AbortController();
remoteSearchAbort = abort;
const captured = query;
try {
const results = await searchRemoteProfiles(captured, abort.signal);
if (abort.signal.aborted) return;
if (mentionQuery !== captured) return;
mentionRemoteResults = results;
} finally {
if (mentionQuery === captured) remoteSearching = false;
}
}, 200);
}
function closeMention() {
mentionQuery = null;
mentionRemoteResults = [];
mentionIndex = 0;
userMovedCursor = false;
remoteSearching = false;
if (remoteSearchTimer) clearTimeout(remoteSearchTimer);
remoteSearchAbort?.abort();
}
function updateMentionFromTextarea() {
const ta = textareaEl;
if (!ta) {
closeMention();
return;
}
const ctx = detectMentionContext(ta.value, ta.selectionStart);
if (!ctx) {
closeMention();
return;
}
const wasOpen = mentionQuery !== null;
if (ctx.query !== mentionQuery) {
mentionIndex = 0;
userMovedCursor = false;
mentionRemoteResults = [];
}
mentionQuery = ctx.query;
mentionStart = ctx.start;
mentionEnd = ctx.end;
scheduleRemoteSearch(ctx.query, mentionLocalResults.length);
if (!wasOpen) updateAnchor();
}
function updateAnchor() {
const ta = textareaEl;
if (!ta) return;
const rect = ta.getBoundingClientRect();
const spaceBelow = window.innerHeight - rect.bottom;
const spaceAbove = rect.top;
anchorAbove = spaceBelow < 280 && spaceAbove > spaceBelow;
}
async function selectMention(entry: ProfileEntry) {
const ta = textareaEl;
if (!ta || mentionQuery === null) return;
const before = value.slice(0, mentionStart);
const after = value.slice(mentionEnd);
let relays: string[] = [];
try {
const list = await loadRelayList(entry.pubkey);
relays = list.items
.filter((r) => r.write)
.slice(0, 2)
.map((r) => r.url);
} catch {
// No hints — still a valid nprofile, just less robust for receivers.
}
const nprofile = nip19.nprofileEncode({ pubkey: entry.pubkey, relays });
const insertion = `nostr:${nprofile}`;
const trailing = after.startsWith(" ") ? "" : " ";
value = before + insertion + trailing + after;
closeMention();
await tick();
const pos = (before + insertion + trailing).length;
ta.focus();
ta.setSelectionRange(pos, pos);
}
function profileLabel(p: ProfileEntry): string {
return p.name || p.displayName || p.nip05 || p.npub.slice(0, 12) + "…";
}
function profileSubLabel(p: ProfileEntry): string | null {
const main = profileLabel(p);
if (p.nip05 && p.nip05 !== main) return p.nip05;
if (p.displayName && p.displayName !== main) return p.displayName;
return null;
}
function onTextareaInput() {
updateMentionFromTextarea();
}
function onTextareaKeydown(e: KeyboardEvent) {
if (mentionQuery !== null) {
if (e.key === "Escape") {
e.preventDefault();
closeMention();
return;
}
if (mergedResults.length > 0) {
if (e.key === "ArrowDown") {
e.preventDefault();
userMovedCursor = true;
mentionIndex = (safeMentionIndex + 1) % mergedResults.length;
return;
} else if (e.key === "ArrowUp") {
e.preventDefault();
userMovedCursor = true;
mentionIndex =
(safeMentionIndex - 1 + mergedResults.length) %
mergedResults.length;
return;
} else if (e.key === "Enter" || e.key === "Tab") {
e.preventDefault();
const entry = mergedResults[safeMentionIndex];
if (entry) selectMention(entry);
return;
}
}
}
onkeydown?.(e);
}
function onTextareaClickOrSelect() {
updateMentionFromTextarea();
}
function onTextareaBlur() {
setTimeout(() => closeMention(), 120);
onblur?.();
}
// Keep the highlighted (most-relevant) item visible as results change.
$effect(() => {
if (!listboxEl) return;
const idx = safeMentionIndex;
const items = listboxEl.querySelectorAll<HTMLElement>('[role="option"]');
items[idx]?.scrollIntoView({ block: "nearest" });
});
</script>
<div class="relative">
<textarea
bind:this={textareaEl}
bind:value
{disabled}
{rows}
{placeholder}
oninput={onTextareaInput}
onkeydown={onTextareaKeydown}
onclick={onTextareaClickOrSelect}
onkeyup={onTextareaClickOrSelect}
onfocus={onTextareaFocus}
onblur={onTextareaBlur}
aria-autocomplete="list"
aria-controls={mentionOpen ? "mention-listbox" : undefined}
class={textareaClass}
></textarea>
{#if mentionOpen}
<div
id="mention-listbox"
bind:this={listboxEl}
class="absolute right-0 left-0 z-30 max-h-72 overflow-auto rounded border border-neutral-200 bg-white shadow-lg"
class:bottom-full={anchorAbove}
class:mb-1={anchorAbove}
class:top-full={!anchorAbove}
class:mt-1={!anchorAbove}
>
{#if mentionQuery === ""}
<div
class="px-3 py-1.5 text-xs text-neutral-400"
class:border-b={mergedResults.length > 0}
class:border-neutral-100={mergedResults.length > 0}
>
Type to search
</div>
{:else if remoteSearching && mergedResults.length > 0}
<div
class="flex items-center gap-2 border-b border-neutral-100 px-3 py-1.5 text-xs text-neutral-400"
aria-live="polite"
>
<span
class="inline-block h-3 w-3 animate-spin rounded-full border border-neutral-300 border-t-neutral-600"
aria-hidden="true"
></span>
<span>Searching…</span>
</div>
{/if}
{#if mergedResults.length === 0 && mentionQuery !== ""}
<div class="flex items-center gap-2 px-3 py-2 text-xs text-neutral-400">
{#if remoteSearching}
<span
class="inline-block h-3 w-3 animate-spin rounded-full border border-neutral-300 border-t-neutral-600"
aria-hidden="true"
></span>
<span>Searching…</span>
{:else}
No matches
{/if}
</div>
{:else if mergedResults.length > 0}
<ul role="listbox">
{#each mergedResults as entry, i (entry.pubkey)}
<li
role="option"
aria-selected={i === safeMentionIndex}
class="flex cursor-pointer items-center gap-2 px-3 py-1.5 text-sm"
class:bg-neutral-100={i === safeMentionIndex}
onmousedown={(e) => {
e.preventDefault();
selectMention(entry);
}}
onmouseenter={() => {
userMovedCursor = true;
mentionIndex = i;
}}
>
{#if entry.picture}
<img
src={entry.picture}
alt=""
class="h-6 w-6 flex-shrink-0 rounded-full object-cover"
/>
{:else}
<span
class="flex h-6 w-6 flex-shrink-0 items-center justify-center rounded-full bg-neutral-200 text-xs text-neutral-500"
aria-hidden="true"
>
{profileLabel(entry)[0]?.toUpperCase() ?? "?"}
</span>
{/if}
<span class="truncate font-medium text-neutral-700">
{profileLabel(entry)}
</span>
{#if profileSubLabel(entry)}
<span class="truncate text-xs text-neutral-400">
{profileSubLabel(entry)}
</span>
{/if}
</li>
{/each}
</ul>
{/if}
</div>
{/if}
</div>

View file

@ -1,16 +1,9 @@
<script lang="ts">
import { tick } from "svelte";
import * as nip19 from "@nostr/tools/nip19";
import { loadRelayList } from "@nostr/gadgets/lists";
import { uploadImage } from "$lib/blossom";
import { BLOSSOM_URL } from "$lib/config";
import PostContent from "$lib/components/PostContent.svelte";
import {
profileStore,
searchLocalProfiles,
searchRemoteProfiles,
type ProfileEntry,
} from "$lib/profiles.svelte";
import MentionAutocomplete from "$lib/components/MentionAutocomplete.svelte";
type Props = {
value: string;
@ -34,94 +27,13 @@
threadEventAuthors = {},
}: Props = $props();
let textareaEl = $state<HTMLTextAreaElement | null>(null);
let editorEl = $state<MentionAutocomplete | null>(null);
let fileInputEl = $state<HTMLInputElement | null>(null);
let uploadError = $state<string | null>(null);
let previewing = $state(false);
// Mention autocomplete state
let mentionQuery = $state<string | null>(null);
let mentionStart = $state(0);
let mentionEnd = $state(0);
let mentionRemoteResults = $state<ProfileEntry[]>([]);
let mentionIndex = $state(0);
let userMovedCursor = $state(false);
let anchorAbove = $state(false);
let remoteSearching = $state(false);
let remoteSearchTimer: ReturnType<typeof setTimeout> | null = null;
let remoteSearchAbort: AbortController | null = null;
let listboxEl = $state<HTMLDivElement | null>(null);
const contextSet = $derived(new Set(contextPubkeys));
const mentionLocalResults = $derived.by(() => {
if (mentionQuery === null) return [];
if (mentionQuery === "") {
// Bare "@": only thread participants we know about, no global cache spill.
const out: ProfileEntry[] = [];
for (const pk of contextSet) {
const p = profileStore.profiles.get(pk);
if (p) out.push(p);
}
return out
.sort((a, b) =>
(a.name ?? a.displayName ?? "").localeCompare(
b.name ?? b.displayName ?? "",
),
)
.slice(0, 8);
}
return searchLocalProfiles(mentionQuery, {
contextPubkeys: contextSet,
limit: 8,
});
});
// Most-relevant first internally, reversed for display so the best match
// sits at the bottom (closest to the textarea when the dropdown opens above).
const mergedResults = $derived.by(() => {
const seen = new Set<string>();
const out: ProfileEntry[] = [];
for (const p of mentionLocalResults) {
if (seen.has(p.pubkey)) continue;
seen.add(p.pubkey);
out.push(p);
}
for (const p of mentionRemoteResults) {
if (seen.has(p.pubkey)) continue;
seen.add(p.pubkey);
out.push(p);
}
return out.slice(0, 8).reverse();
});
const mentionOpen = $derived(mentionQuery !== null);
const safeMentionIndex = $derived.by(() => {
if (mergedResults.length === 0) return 0;
if (!userMovedCursor) return mergedResults.length - 1;
return Math.min(mentionIndex, mergedResults.length - 1);
});
export function focus(opts: { caretAtEnd?: boolean } = {}) {
const ta = textareaEl;
if (!ta) return;
ta.focus();
if (opts.caretAtEnd) {
const pos = ta.value.length;
ta.setSelectionRange(pos, pos);
}
}
// Warm the kind:10002 cache for thread participants so relay hints are
// ready by publish time. Best-effort, dedup across focus events.
const prefetched = new Set<string>();
function onTextareaFocus() {
for (const pk of contextPubkeys) {
if (prefetched.has(pk)) continue;
prefetched.add(pk);
loadRelayList(pk).catch(() => {});
}
editorEl?.focus(opts);
}
function togglePreview() {
@ -140,7 +52,7 @@
uploading = true;
try {
const blob = await uploadImage(file);
const ta = textareaEl;
const ta = editorEl?.getTextarea();
if (ta) {
const start = ta.selectionStart;
const end = ta.selectionEnd;
@ -163,176 +75,12 @@
input.value = "";
}
}
function detectMentionContext(text: string, cursor: number) {
const before = text.slice(0, cursor);
const m = before.match(/(?:^|\s)@([^\s@]*)$/);
if (!m) return null;
const query = m[1];
return {
query,
start: cursor - query.length - 1,
end: cursor,
};
}
function scheduleRemoteSearch(query: string, localCount: number) {
if (remoteSearchTimer) clearTimeout(remoteSearchTimer);
remoteSearchAbort?.abort();
if (!query || query.length < 1 || localCount >= 8) {
mentionRemoteResults = [];
remoteSearching = false;
return;
}
remoteSearching = true;
remoteSearchTimer = setTimeout(async () => {
const abort = new AbortController();
remoteSearchAbort = abort;
const captured = query;
try {
const results = await searchRemoteProfiles(captured, abort.signal);
if (abort.signal.aborted) return;
if (mentionQuery !== captured) return;
mentionRemoteResults = results;
} finally {
if (mentionQuery === captured) remoteSearching = false;
}
}, 200);
}
function closeMention() {
mentionQuery = null;
mentionRemoteResults = [];
mentionIndex = 0;
userMovedCursor = false;
remoteSearching = false;
if (remoteSearchTimer) clearTimeout(remoteSearchTimer);
remoteSearchAbort?.abort();
}
function updateMentionFromTextarea() {
const ta = textareaEl;
if (!ta) {
closeMention();
return;
}
const ctx = detectMentionContext(ta.value, ta.selectionStart);
if (!ctx) {
closeMention();
return;
}
const wasOpen = mentionQuery !== null;
if (ctx.query !== mentionQuery) {
mentionIndex = 0;
userMovedCursor = false;
mentionRemoteResults = [];
}
mentionQuery = ctx.query;
mentionStart = ctx.start;
mentionEnd = ctx.end;
scheduleRemoteSearch(ctx.query, mentionLocalResults.length);
if (!wasOpen) updateAnchor();
}
function updateAnchor() {
const ta = textareaEl;
if (!ta) return;
const rect = ta.getBoundingClientRect();
const spaceBelow = window.innerHeight - rect.bottom;
const spaceAbove = rect.top;
anchorAbove = spaceBelow < 280 && spaceAbove > spaceBelow;
}
async function selectMention(entry: ProfileEntry) {
const ta = textareaEl;
if (!ta || mentionQuery === null) return;
const before = value.slice(0, mentionStart);
const after = value.slice(mentionEnd);
// Fetch the user's kind:10002 to embed write-relay hints in the nprofile.
// Cached by gadgets, so repeat selections are instant.
let relays: string[] = [];
try {
const list = await loadRelayList(entry.pubkey);
relays = list.items
.filter((r) => r.write)
.slice(0, 2)
.map((r) => r.url);
} catch {
// No hints — still a valid nprofile, just less robust for receivers.
}
const nprofile = nip19.nprofileEncode({ pubkey: entry.pubkey, relays });
const insertion = `nostr:${nprofile}`;
const trailing = after.startsWith(" ") ? "" : " ";
value = before + insertion + trailing + after;
closeMention();
await tick();
const pos = (before + insertion + trailing).length;
ta.focus();
ta.setSelectionRange(pos, pos);
}
function profileLabel(p: ProfileEntry): string {
return p.name || p.displayName || p.nip05 || p.npub.slice(0, 12) + "…";
}
function profileSubLabel(p: ProfileEntry): string | null {
const main = profileLabel(p);
if (p.nip05 && p.nip05 !== main) return p.nip05;
if (p.displayName && p.displayName !== main) return p.displayName;
return null;
}
function onTextareaInput() {
updateMentionFromTextarea();
}
function onTextareaKeydown(e: KeyboardEvent) {
if (mentionQuery === null) return;
if (e.key === "Escape") {
e.preventDefault();
closeMention();
return;
}
if (mergedResults.length === 0) return;
if (e.key === "ArrowDown") {
e.preventDefault();
userMovedCursor = true;
mentionIndex = (safeMentionIndex + 1) % mergedResults.length;
} else if (e.key === "ArrowUp") {
e.preventDefault();
userMovedCursor = true;
mentionIndex =
(safeMentionIndex - 1 + mergedResults.length) % mergedResults.length;
} else if (e.key === "Enter" || e.key === "Tab") {
e.preventDefault();
const entry = mergedResults[safeMentionIndex];
if (entry) selectMention(entry);
}
}
function onTextareaClickOrSelect() {
updateMentionFromTextarea();
}
function onTextareaBlur() {
setTimeout(() => closeMention(), 120);
}
// Keep the highlighted (most-relevant) item visible as results change.
$effect(() => {
if (!listboxEl) return;
const idx = safeMentionIndex;
const items = listboxEl.querySelectorAll<HTMLElement>('[role="option"]');
items[idx]?.scrollIntoView({ block: "nearest" });
});
</script>
<div class="flex flex-col {previewing ? 'flex-1 min-h-0' : ''}">
<div class="flex flex-col {previewing ? 'min-h-0 flex-1' : ''}">
{#if previewing}
<div
class="w-full rounded-t border border-neutral-200 px-3 py-2 overflow-auto flex-1 min-h-0 max-h-[70vh] {minHeightClass}"
class="max-h-[70vh] min-h-0 w-full flex-1 overflow-auto rounded-t border border-neutral-200 px-3 py-2 {minHeightClass}"
aria-label="Preview"
>
{#if value.trim()}
@ -342,113 +90,15 @@
{/if}
</div>
{:else}
<div class="relative">
<textarea
bind:this={textareaEl}
bind:value
{disabled}
{rows}
{placeholder}
oninput={onTextareaInput}
onkeydown={onTextareaKeydown}
onclick={onTextareaClickOrSelect}
onkeyup={onTextareaClickOrSelect}
onfocus={onTextareaFocus}
onblur={onTextareaBlur}
aria-autocomplete="list"
aria-controls={mentionOpen ? "mention-listbox" : undefined}
class="block w-full rounded-t border border-neutral-200 px-3 py-2 focus:outline-none focus:ring-1 focus:ring-brand disabled:opacity-50 resize-y {minHeightClass}"
></textarea>
{#if mentionOpen}
<div
id="mention-listbox"
bind:this={listboxEl}
class="absolute z-30 left-0 right-0 max-h-72 overflow-auto rounded border border-neutral-200 bg-white shadow-lg"
class:bottom-full={anchorAbove}
class:mb-1={anchorAbove}
class:top-full={!anchorAbove}
class:mt-1={!anchorAbove}
>
{#if mentionQuery === ""}
<div
class="px-3 py-1.5 text-xs text-neutral-400"
class:border-b={mergedResults.length > 0}
class:border-neutral-100={mergedResults.length > 0}
>
Type to search
</div>
{:else if remoteSearching && mergedResults.length > 0}
<div
class="px-3 py-1.5 text-xs text-neutral-400 flex items-center gap-2 border-b border-neutral-100"
aria-live="polite"
>
<span
class="h-3 w-3 inline-block rounded-full border border-neutral-300 border-t-neutral-600 animate-spin"
aria-hidden="true"
></span>
<span>Searching…</span>
</div>
{/if}
{#if mergedResults.length === 0 && mentionQuery !== ""}
<div
class="px-3 py-2 text-xs text-neutral-400 flex items-center gap-2"
>
{#if remoteSearching}
<span
class="h-3 w-3 inline-block rounded-full border border-neutral-300 border-t-neutral-600 animate-spin"
aria-hidden="true"
></span>
<span>Searching…</span>
{:else}
No matches
{/if}
</div>
{:else if mergedResults.length > 0}
<ul role="listbox">
{#each mergedResults as entry, i (entry.pubkey)}
<li
role="option"
aria-selected={i === safeMentionIndex}
class="flex items-center gap-2 px-3 py-1.5 cursor-pointer text-sm"
class:bg-neutral-100={i === safeMentionIndex}
onmousedown={(e) => {
e.preventDefault();
selectMention(entry);
}}
onmouseenter={() => {
userMovedCursor = true;
mentionIndex = i;
}}
>
{#if entry.picture}
<img
src={entry.picture}
alt=""
class="h-6 w-6 rounded-full object-cover flex-shrink-0"
/>
{:else}
<span
class="h-6 w-6 rounded-full bg-neutral-200 flex items-center justify-center text-xs text-neutral-500 flex-shrink-0"
aria-hidden="true"
>
{profileLabel(entry)[0]?.toUpperCase() ?? "?"}
</span>
{/if}
<span class="font-medium text-neutral-700 truncate">
{profileLabel(entry)}
</span>
{#if profileSubLabel(entry)}
<span class="text-xs text-neutral-400 truncate">
{profileSubLabel(entry)}
</span>
{/if}
</li>
{/each}
</ul>
{/if}
</div>
{/if}
</div>
<MentionAutocomplete
bind:this={editorEl}
bind:value
{disabled}
{rows}
{placeholder}
{contextPubkeys}
textareaClass="block w-full rounded-t border border-neutral-200 px-3 py-2 focus:outline-none focus:ring-1 focus:ring-brand disabled:opacity-50 resize-y {minHeightClass}"
/>
{/if}
<div
class="flex flex-shrink-0 items-center gap-4 rounded-b border border-t-0 border-neutral-200 bg-neutral-50 px-3 py-2 text-sm"
@ -458,7 +108,7 @@
onclick={onUploadClick}
disabled={uploading || disabled || previewing || !BLOSSOM_URL}
title={!BLOSSOM_URL ? "Blossom server not configured" : ""}
class="inline-flex items-center gap-1.5 text-neutral-600 hover:text-neutral-900 disabled:opacity-50 disabled:cursor-not-allowed"
class="inline-flex items-center gap-1.5 text-neutral-600 hover:text-neutral-900 disabled:cursor-not-allowed disabled:opacity-50"
>
<svg
width="16"
@ -485,7 +135,7 @@
onclick={togglePreview}
disabled={disabled || uploading}
aria-pressed={previewing}
class="ml-auto inline-flex items-center gap-1.5 text-neutral-600 hover:text-neutral-900 disabled:opacity-50 disabled:cursor-not-allowed"
class="ml-auto inline-flex items-center gap-1.5 text-neutral-600 hover:text-neutral-900 disabled:cursor-not-allowed disabled:opacity-50"
>
<svg
width="16"