Files
vhaudiquet 94b82e2636 fix(web): the bugs a chat that never closes for a turn exposes
An investigation pass over the client, driven by steering's new shape —
a composer that is always live makes adjacent latent bugs visible.

The event stream now watches for silence: the claw keeps the
connection alive with a comment every fifteen seconds, and three
missed ones abort the fetch and reconnect, so a half-open TCP after a
laptop sleep no longer reads as 'live' forever. A reconnect clears the
attempted-attachment set with the transcript, or an image whose fetch
failed during the outage never retries against the recovered stream.
Saving a token reloads the identity and accounts the 401 froze: the
banner cleared, but the pages stayed empty until a browser reload.

A failed POST retracts its optimistic sent row (and its pending echo,
so a message the claw did take still renders from the stream's echo);
before, a send into an unreachable claw left a phantom row waiting for
a reply that could never come. Drafts are per-session now — the
composer's text belonged to no session, so a draft typed into one
session sent into whichever was selected at Enter. The providers
login form distinguishes a landed login (the roster carries its id)
from a failed one and no longer closes on an unrelated state refresh.

Two cost fixes that read as jank on long turns: the streamed reply's
markdown re-parsed the whole text per delta (quadratic) and now
re-renders on a short trailing debounce; the attachment-image watcher
walked the whole transcript on every streamed chunk and now scans only
the items it has not seen. The accounts page drops a stray Rust-ism
comment, and the avatar row's meta line admits webp like its accept
attribute always did.
2026-11-08 18:00:56 +01:00

63 lines
1.9 KiB
Vue

<script setup lang="ts">
// Agent replies are markdown; this mounts the rendered HTML. The parser
// keeps raw HTML in the source escaped (html stays false) and refuses
// javascript: link targets, so v-html only ever receives generated
// markup.
import MarkdownIt from 'markdown-it'
import type { RendererRule } from 'markdown-it'
const props = defineProps<{
text: string
/** While true, a blinking cursor trails the last rendered block. */
streaming?: boolean
}>()
const md = new MarkdownIt({ html: false, linkify: true })
// Rendered links leave the dashboard; open them in a new tab so the
// transcript and its event stream survive the click.
const defaultLinkOpen: RendererRule =
md.renderer.rules.link_open ??
((tokens, idx, options, env, self) => self.renderToken(tokens, idx, options))
md.renderer.rules.link_open = (tokens, idx, options, env, self) => {
const token = tokens[idx]
if (token) {
token.attrSet('target', '_blank')
token.attrSet('rel', 'noopener noreferrer')
}
return defaultLinkOpen(tokens, idx, options, env, self)
}
// Streaming re-parses the whole reply per delta — quadratic over the
// reply's length, and every render lands on the main thread. A short
// trailing debounce keeps the render at a readable cadence while the
// turn streams; a settled text renders at once, so a finished reply is
// never a frame behind its last delta.
const html = ref('')
let renderTimer: ReturnType<typeof setTimeout> | null = null
watch(
() => props.text,
(text) => {
if (renderTimer !== null) clearTimeout(renderTimer)
if (!props.streaming) {
html.value = md.render(text)
return
}
renderTimer = setTimeout(() => {
renderTimer = null
html.value = md.render(props.text)
}, 80)
},
{ immediate: true },
)
onUnmounted(() => {
if (renderTimer !== null) clearTimeout(renderTimer)
})
</script>
<template>
<div class="md" :class="{ streaming }" v-html="html" />
</template>