Merge branch 'development'

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
2026-10-10 16:37:52 -04:00
parent 74af46a6f2 9b14536112
commit db495d2e98
37 changed files with 1581 additions and 82 deletions
@@ -276,6 +276,20 @@ jobs:
      - name: tray check
        run: xvfb-run -a npm run test:tray

+      # GIFs: that a message carrying one is drawn as the picture, that a page
+      # nothing could read stays a link, and that the picker finds and sends.
+      # Needs ffmpeg, for the pictures it plays.
+      - name: gif check
+        run: |
+          sudo apt-get install -y --no-install-recommends ffmpeg
+          xvfb-run -a npm run test:gif
+
+      # Scrolling through a long unread run: that the view stays where it is
+      # read when something above it changes size, with the "new messages" bar
+      # up over the top of the log.
+      - name: scroll check
+        run: xvfb-run -a npm run test:scroll
+
      # MOHO_BUILD is computed inside the npm script - a shell assignment on
      # the electron-builder line - so it cannot be injected from out here.
      # The only way to control what the artifact is called is to guarantee
@@ -17,6 +17,26 @@ Each section has two parts:
  that made it, including dependency updates
  (`node scripts/changelog-deps.mjs <previous tag>` lists those).

+## [1.0.0-rc.5]
+
+### Major features
+
+- **GIFs on every service:** a linked GIF is drawn as the picture - silent, looping, without the player - whichever service it came from, and a GIF picker with trending, categories and search sends one from the composer. Klipy, Tenor and Giphy pages are never probed for what they are.
+- **Idle detection:** moho notices when nothing has been used for a while, from the system where it can say and from its own windows where it cannot, and puts an account that has an idle on Idle and back. It has a setting for it and for how long, and the plaque says Idle (away) while keeping what you chose checked.
+- **Link cards on every service:** a YouTube link gets a titled card with its channel on IRC, Matrix, Kick and Sneedchat as it does on Discord - including through Tor, which YouTube refuses the usual way - and one added in an edit, read back from history, or posted before cards existed gets its card too.
+
+### Fixes, patches and changes
+
+- Added idle detection with a setting for it and for how long ([moho `23c87dd`](https://github.com/Moho-Chat/moho/commit/23c87dd), [nobilis `35ea0b7`](https://github.com/Moho-Chat/nobilis/commit/35ea0b7))
+- Added GIFs drawn as pictures on every service, and a GIF picker ([moho `55248eb`](https://github.com/Moho-Chat/moho/commit/55248eb), [nobilis `046fbb4`](https://github.com/Moho-Chat/nobilis/commit/046fbb4))
+- Fixed a Sneedchat picture from the forum's uploads host - an AVIF, or an MP4 - not drawing: its domain is taken off and it is fetched through the account's route, clearnet or Tor ([moho `07f4fc2`](https://github.com/Moho-Chat/moho/commit/07f4fc2), [nobilis `ca29a63`](https://github.com/Moho-Chat/nobilis/commit/ca29a63))
+- Fixed the tray's number drifting from the client's: it is now counted by the window, by the rail's rule, and told to the tray whenever it changes ([moho `1e314f8`](https://github.com/Moho-Chat/moho/commit/1e314f8))
+- Fixed YouTube cards never appearing for an account on Tor: YouTube answers every Tor exit with a 403 on its card lookup, so the video's own page is read when that happens ([moho `8064e79`](https://github.com/Moho-Chat/moho/commit/8064e79), [nobilis `340342b`](https://github.com/Moho-Chat/nobilis/commit/340342b))
+- Fixed link cards being lost when a message was edited, and missing from Matrix history, Discord catch-up and older messages ([moho `638b02e`](https://github.com/Moho-Chat/moho/commit/638b02e), [nobilis `dab394f`](https://github.com/Moho-Chat/nobilis/commit/dab394f))
+- Fixed scrolling through a long run of unread messages snapping back to where the "new messages" bar appeared ([moho `336335a`](https://github.com/Moho-Chat/moho/commit/336335a))
+- The number beside a conversation is what is addressed to you - mentions in a channel, each unread message in a direct message - and the bold name is the sign of activity ([moho `987f31c`](https://github.com/Moho-Chat/moho/commit/987f31c))
+- A muted channel keeps its mention count in the list, the rail, the switcher and the tray, and stops the popups; muting a Discord channel or direct message is now set on the account, so a phone is quiet too ([moho `7803cc3`](https://github.com/Moho-Chat/moho/commit/7803cc3), [nobilis `b0fa250`](https://github.com/Moho-Chat/nobilis/commit/b0fa250))
+
 ## [1.0.0-rc.4]

 ### Major features
@@ -1,12 +1,12 @@
 {
  "name": "moho",
-  "version": "1.0.0-rc.4",
+  "version": "1.0.0-rc.5",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "moho",
-      "version": "1.0.0-rc.4",
+      "version": "1.0.0-rc.5",
      "license": "GPL-3.0-or-later",
      "dependencies": {
        "@electron-toolkit/preload": "^3.0.1",
@@ -1,6 +1,6 @@
 {
  "name": "moho",
-  "version": "1.0.0-rc.4",
+  "version": "1.0.0-rc.5",
  "description": "Unified desktop chat client for IRC, Discord, Sneedchat and Matrix",
  "author": "Salastil",
  "license": "GPL-3.0-or-later",
@@ -22,13 +22,16 @@
    "test": "vitest run",
    "test:ui": "electron-vite build && node scripts/ui-check.mjs",
    "test:tray": "electron-vite build && node scripts/tray-check.mjs",
+    "test:gif": "electron-vite build && node scripts/gif-check.mjs",
+    "test:scroll": "electron-vite build && node scripts/scroll-check.mjs",
    "shots": "electron-vite build && node scripts/ui-shots.mjs",
    "pack": "npm run daemon && npm run build && MOHO_BUILD=$(git rev-parse --short HEAD)$(git diff --quiet HEAD || echo -dirty) electron-builder --linux AppImage",
    "pack:deb": "npm run daemon && npm run build && MOHO_BUILD=$(git rev-parse --short HEAD)$(git diff --quiet HEAD || echo -dirty) electron-builder --linux deb",
    "pack:linux": "npm run daemon && npm run build && MOHO_BUILD=$(git rev-parse --short HEAD)$(git diff --quiet HEAD || echo -dirty) electron-builder --linux AppImage deb",
    "pack:dir": "npm run daemon && npm run build && MOHO_BUILD=$(git rev-parse --short HEAD)$(git diff --quiet HEAD || echo -dirty) electron-builder --linux dir",
    "daemon": "./scripts/build-daemon.sh",
-    "deploy": "npm run pack && ./scripts/install-desktop.sh",
+    "tidy": "./scripts/tidy.sh",
+    "deploy": "./scripts/tidy.sh && npm run pack && ./scripts/install-desktop.sh",
    "daemon:win": "./scripts/build-daemon-win.sh",
    "pack:win": "npm run daemon:win && npm run build && MOHO_BUILD=$(git rev-parse --short HEAD)$(git diff --quiet HEAD || echo -dirty) electron-builder --win nsis"
  },
@@ -0,0 +1,131 @@
+#!/usr/bin/env node
+/**
+ * Checks GIFs against the running app: that one a message carries is drawn as
+ * the picture and not as its address, that a link to a page nothing could read
+ * is still a link, and that the picker finds, filters and sends.
+ *
+ * What it stands in for, and why: Discord is not here, so the picker's list is
+ * left for it (a fixture only a harness window reads) and the embeds are put on
+ * messages directly. What is real is everything the window does with them, and
+ * the send, which goes through the daemon to a fake IRC server and is read back
+ * off the wire.
+ *
+ *   npm run test:gif        (builds first; needs the daemon built too)
+ */
+import { execFileSync } from 'node:child_process'
+import fs from 'node:fs'
+import os from 'node:os'
+import path from 'node:path'
+import { fakeIrc, launchApp, openIrcChannel, sleep, until, click } from './lib/harness.mjs'
+
+let failures = 0
+const check = (ok, what, detail = '') => {
+  console.log(`${ok ? 'ok  ' : 'FAIL'} ${what}${ok ? '' : detail ? ` - ${detail}` : ''}`)
+  if (!ok) failures++
+}
+
+setTimeout(() => {
+  console.log('FAIL timed out')
+  process.exit(1)
+}, 120000).unref()
+
+// A GIF and a video to be served, so what is drawn has something to load: made
+// with ffmpeg, a second of a flat colour. The window only plays https, blob and
+// data media, so they are handed to it as the last two.
+const media = fs.mkdtempSync(path.join(os.tmpdir(), 'moho-gif-'))
+execFileSync('ffmpeg', ['-v', 'error', '-f', 'lavfi', '-i', 'color=c=0x3a8fe0:s=96x54:d=1:r=10', '-pix_fmt', 'yuv420p', '-y', path.join(media, 'cat.mp4')])
+execFileSync('ffmpeg', ['-v', 'error', '-f', 'lavfi', '-i', 'color=c=0xe0a43a:s=96x54:d=1:r=10', '-y', path.join(media, 'giphy.gif')])
+const MP4 = fs.readFileSync(path.join(media, 'cat.mp4')).toString('base64')
+const GIF = fs.readFileSync(path.join(media, 'giphy.gif')).toString('base64')
+
+const sent = []
+const irc = await fakeIrc({
+  people: ['bob'],
+  onJoin: (channel, _nick, send) => send(`:bob!b@h PRIVMSG ${channel} :hello there`),
+  onLine: (line) => {
+    if (/^PRIVMSG/i.test(line)) sent.push(line)
+  }
+})
+const { page, stop } = await launchApp({ env: { MOHO_UI_SHOTS: '1' } })
+let home = ''
+try {
+  home = await page.evaluate('window.moho.diagnostics?.home ?? ""').catch(() => '')
+  await until(page, 'window.__mohoShots', 'the harness hook')
+  await openIrcChannel(page, { port: irc.address().port, nick: 'checker', channels: ['#lobby'], waitFor: 'hello there' })
+
+  // The same GIF, as a message that carries it.
+  const SIZE = (a, b, label) =>
+    'data:image/svg+xml;utf8,' +
+    encodeURIComponent(`<svg xmlns="http://www.w3.org/2000/svg" width="480" height="270"><rect width="480" height="270" fill="${a}"/><text x="240" y="150" font-size="60" fill="${b}" text-anchor="middle">${label}</text></svg>`)
+  await page.evaluate(`(() => {
+    const shots = window.__mohoShots
+    const s = shots.state()
+    const id = s.activeBufferId
+    const now = Math.floor(Date.now() / 1000)
+    const bytes = Uint8Array.from(atob('${MP4}'), (c) => c.charCodeAt(0))
+    const MP4_URL = URL.createObjectURL(new Blob([bytes], { type: 'video/mp4' }))
+    const GIF_URL = 'data:image/gif;base64,${GIF}'
+    const msg = (n, body, embeds) => ({ id: 'g' + n, bufferId: id, from: 'bob', senderId: 'bob', body, ts: now - (10 - n), isAction: false, isHighlight: false, kind: 'chat', isOwn: false, ...(embeds ? { embeds } : {}) })
+    shots.patch({
+      accounts: [...s.accounts, { id: 'discord:gifcheck', service: 'discord', displayName: 'x', state: 'connected', autojoin: '', currentNick: 'x', status: 'online', useTor: false, ssl: true }],
+      messagesByBuffer: { ...s.messagesByBuffer, [id]: [...(s.messagesByBuffer[id] || []),
+        msg(1, 'https://tenor.com/view/cat-gif-123', [{ kind: 'gif', url: 'https://tenor.com/view/cat-gif-123', mediaUrl: MP4_URL, mediaKind: 'video', width: 480, height: 270, provider: 'Tenor' }]),
+        msg(2, 'look at this https://giphy.com/gifs/dog-Z7wFi5b2VEAr6 so good', [{ kind: 'gif', url: 'https://giphy.com/gifs/dog-Z7wFi5b2VEAr6', mediaUrl: GIF_URL, mediaKind: 'image', provider: 'Giphy' }]),
+        msg(3, 'https://klipy.com/gifs/friends-joey-53')
+      ] }
+    })
+    window.__gifFixture = {
+      categories: [{ name: 'reaction', src: '' }, { name: 'happy', src: '' }],
+      gifs: [
+        { id: 'a', title: 'cat dancing', url: 'https://tenor.com/view/cat-dancing-gif-1', src: 'http://127.0.0.1:9/a.mp4', gifSrc: 'http://127.0.0.1:9/a.gif', preview: '', width: 480, height: 270 },
+        { id: 'b', title: 'dog running', url: 'https://tenor.com/view/dog-running-gif-2', src: 'http://127.0.0.1:9/b.mp4', gifSrc: 'http://127.0.0.1:9/b.gif', preview: '', width: 270, height: 480 },
+        { id: 'c', title: 'cat sleeping', url: 'https://tenor.com/view/cat-sleeping-gif-3', src: 'http://127.0.0.1:9/c.mp4', gifSrc: 'http://127.0.0.1:9/c.gif', preview: '', width: 480, height: 480 }
+      ]
+    }
+    return true
+  })()`)
+  await sleep(800)
+  const row = (n) => `[...document.querySelectorAll('.message-row')].find((r) => r.innerText.includes('${n}') || r.querySelector('[data-id="g${n}"]'))`
+
+  // A message that carries a GIF shows the GIF, and not the address it came from.
+  const rows = await page.evaluate(`[...document.querySelectorAll('.message-row')].map((r) => ({ text: r.innerText, videos: [...r.querySelectorAll('video')].map((v) => v.getAttribute('src')), plays: [...r.querySelectorAll('video')].map((v) => ({ muted: v.muted, loop: v.loop, controls: v.controls, autoplay: v.autoplay })), images: [...r.querySelectorAll('img')].map((i) => i.getAttribute('src')) }))`)
+  if (process.env.GIF_DEBUG) console.log(JSON.stringify(rows.slice(-4), null, 1))
+  const tenor = rows.find((r) => r.videos.some((v) => v?.startsWith('blob:')))
+  check(!!tenor, 'a GIF message is drawn as a video')
+  check(!!tenor && !/tenor\.com/.test(tenor.text), 'and its page address is not drawn as well', tenor?.text)
+  const play = tenor?.plays?.[0]
+  check(!!play && play.muted && play.loop && !play.controls && play.autoplay, 'played as a GIF: silent, going round, with no player to work', JSON.stringify(play))
+  const giphy = rows.find((r) => r.text.includes('look at this'))
+  check(!!giphy && /look at this/.test(giphy.text) && /so good/.test(giphy.text) && !/giphy\.com/.test(giphy.text), 'words around a GIF link stay, and the link goes', giphy?.text)
+  check(!!giphy && (giphy.images.some((i) => i?.startsWith('data:image/gif'))), 'and a GIF file is drawn as a picture')
+  const klipy = rows.find((r) => r.text.includes('klipy.com'))
+  check(!!klipy && klipy.videos.length === 0, 'a Klipy page nothing could read stays a link', JSON.stringify(klipy))
+
+  // The picker.
+  check(await page.evaluate('!!document.querySelector(\'button[title="GIFs"]\')'), 'a GIF button is offered where there is a Discord account')
+  await page.evaluate(click('button[title="GIFs"]'))
+  await until(page, 'document.querySelector(".gif-picker")', 'the picker')
+  check((await page.evaluate('document.querySelectorAll(".gif-cell").length')) === 3, 'it lists what it was given')
+  check((await page.evaluate('document.querySelectorAll(".gif-category").length')) === 2, 'with categories to start from')
+  const inView = await page.evaluate(`(() => { const r = document.querySelector('.gif-picker').getBoundingClientRect(); return r.left >= 0 && r.top >= 0 && r.right <= window.innerWidth && r.bottom <= window.innerHeight })()`)
+  check(inView, 'inside the window')
+
+  await page.evaluate(`(() => { const i = document.querySelector('.gif-search input'); const set = Object.getOwnPropertyDescriptor(HTMLInputElement.prototype, 'value').set; set.call(i, 'cat'); i.dispatchEvent(new Event('input', { bubbles: true })); return true })()`)
+  await sleep(700)
+  check((await page.evaluate('document.querySelectorAll(".gif-cell").length')) === 2, 'a search narrows it')
+
+  // Choosing one sends it - to IRC, the file, which anything can show as a link.
+  await page.evaluate(`document.querySelector('.gif-cell[title="cat dancing"]').click()`)
+  await sleep(1200)
+  check(sent.some((l) => /PRIVMSG #lobby :?http:\/\/127\.0\.0\.1:9\/a\.gif/.test(l)), 'choosing one sends the file to a service that is not Discord', JSON.stringify(sent))
+  check(!(await page.evaluate('!!document.querySelector(".gif-picker")')), 'and the picker closes')
+} catch (e) {
+  console.log('FAIL', e.message)
+  failures++
+} finally {
+  await stop().catch(() => {})
+  irc.close()
+  fs.rmSync(media, { recursive: true, force: true })
+}
+console.log(failures ? `${failures} failed` : 'all passed')
+process.exit(failures ? 1 : 0)
@@ -18,8 +18,16 @@ set -euo pipefail
 TAG="${1:?usage: scripts/mirror-release.sh vX.Y.Z}"
 VERSION="${TAG#v}"
 ROOT="$(cd "$(dirname "$0")/.." && pwd)"
-GITEA="https://git.salastil.com/api/v1"
+# Through Cloudflare by default, which refuses a request body over 100 MB. The
+# files that are bigger go to Gitea directly across the network, which is what
+# MIRROR_GITEA is for - the same instance, reached by its own address:
+#
+#   MIRROR_GITEA=http://192.168.1.212:8991/api/v1 MIRROR_MAX_BYTES=1000000000 \
+#     scripts/mirror-release.sh v1.0.0
+GITEA="${MIRROR_GITEA:-https://git.salastil.com/api/v1}"
 TOKEN="$(cat "$HOME/.config/gitea/token")"
+# What Cloudflare in front of Gitea will take in one request.
+MAX_UPLOAD="${MIRROR_MAX_BYTES:-100000000}"
 WORK="$(mktemp -d)"
 trap 'rm -rf "$WORK"' EXIT

@@ -42,6 +50,14 @@ gitea_release() { # repo title notes-file prerelease file...
    id="$(gitea POST "/repos/$repo/releases" -H 'Content-Type: application/json' -d "$body" | python3 -c 'import json,sys; print(json.load(sys.stdin)["id"])')"
  fi
  for f in "$@"; do
+    # Gitea is behind Cloudflare, which refuses a request body over 100 MB (a
+    # 413, or a 502 when the connection is cut mid-upload). A file over that
+    # stays on GitHub only, said plainly rather than failing the whole mirror
+    # and leaving everything after it - nobilis's releases - undone.
+    if [ "$(stat -c %s "$f")" -gt "$MAX_UPLOAD" ]; then
+      echo "  SKIPPED $(basename "$f") ($(( $(stat -c %s "$f") / 1000000 )) MB) - over Cloudflare's ${MAX_UPLOAD} byte limit; it is on GitHub only" >&2
+      continue
+    fi
    gitea POST "/repos/$repo/releases/$id/assets?name=$(basename "$f")" -F "attachment=@$f" >/dev/null
    echo "  uploaded $(basename "$f") -> Gitea $repo"
  done
@@ -0,0 +1,101 @@
+#!/usr/bin/env node
+/**
+ * Checks that a reader scrolling through a long unread run is not put back.
+ *
+ * The "N new messages since" bar sits over the top of the log. What the list
+ * remembers about where the reader is came from asking the page what is at its
+ * top edge - which, while the bar is up, is the bar. So the place stopped being
+ * kept up to date the moment the bar appeared, and the next thing to change
+ * size (a card arriving, a picture loading) put the view back where the
+ * reader had been when it appeared.
+ *
+ *   npm run test:scroll        (builds first; needs the daemon built too)
+ */
+import { fakeIrc, launchApp, openIrcChannel, sleep, until } from './lib/harness.mjs'
+
+let failures = 0
+const check = (ok, what, detail = '') => {
+  console.log(`${ok ? 'ok  ' : 'FAIL'} ${what}${ok ? '' : detail ? ` - ${detail}` : ''}`)
+  if (!ok) failures++
+}
+setTimeout(() => {
+  console.log('FAIL timed out')
+  process.exit(1)
+}, 90000).unref()
+
+const irc = await fakeIrc({
+  people: ['bob'],
+  onJoin: (channel, _nick, send) => send(`:bob!b@h PRIVMSG ${channel} :hello there`)
+})
+const { page, stop } = await launchApp({ env: { MOHO_UI_SHOTS: '1' } })
+try {
+  await until(page, 'window.__mohoShots', 'the harness hook')
+  await openIrcChannel(page, { port: irc.address().port, nick: 'checker', channels: ['#lobby'], waitFor: 'hello there' })
+
+  // Three hundred messages, the last two hundred of them unread.
+  await page.evaluate(`(() => {
+    const shots = window.__mohoShots
+    const s = shots.state()
+    const id = s.activeBufferId
+    const now = Math.floor(Date.now() / 1000)
+    const list = Array.from({ length: 300 }, (_, n) => ({
+      id: 'm' + n, bufferId: id, from: n % 3 ? 'bob' : 'carol', senderId: n % 3 ? 'bob' : 'carol',
+      body: 'message number ' + n + ' with a little text in it', ts: now - 40000 + n * 60,
+      isAction: false, isHighlight: false, kind: 'chat', isOwn: false
+    }))
+    shots.patch({
+      messagesByBuffer: { ...s.messagesByBuffer, [id]: list },
+      dividerTsByBuffer: { ...s.dividerTsByBuffer, [id]: list[99].ts }
+    })
+  })()`)
+  await until(page, `!!document.querySelector('.new-divider')`, 'the New line')
+  await sleep(600)
+
+  // Reading down past the line, the way a wheel does: the bar comes up.
+  await page.evaluate(`(async () => {
+    const el = document.querySelector('.messagelist-scroll')
+    el.dispatchEvent(new WheelEvent('wheel', { deltaY: 100, bubbles: true }))
+    for (let i = 0; i < 8; i++) {
+      el.scrollTop += 120
+      el.dispatchEvent(new WheelEvent('wheel', { deltaY: 120, bubbles: true }))
+      await new Promise((r) => setTimeout(r, 60))
+    }
+  })()`)
+  await until(page, `!!document.querySelector('.unread-bar')`, 'the unread bar')
+
+  // Further down, with the bar over the top of the log the whole way.
+  await page.evaluate(`(async () => {
+    const el = document.querySelector('.messagelist-scroll')
+    for (let i = 0; i < 12; i++) {
+      el.scrollTop += 150
+      el.dispatchEvent(new WheelEvent('wheel', { deltaY: 150, bubbles: true }))
+      await new Promise((r) => setTimeout(r, 60))
+    }
+  })()`)
+  await sleep(300)
+  const before = await page.evaluate(`document.querySelector('.messagelist-scroll').scrollTop`)
+
+  // Something above the reader settles taller - a card arriving, a picture
+  // loading. The row under the reader's eye is what must stay put.
+  const moved = await page.evaluate(`(async () => {
+    const el = document.querySelector('.messagelist-scroll')
+    const box = el.getBoundingClientRect()
+    const rows = [...el.querySelectorAll('[data-msg-id]')]
+    const watched = rows.find((r) => r.getBoundingClientRect().top > box.top + 60)
+    const was = watched.getBoundingClientRect().top - box.top
+    const above = rows.find((r) => r.getBoundingClientRect().bottom < box.top - 50)
+    above.style.minHeight = (above.getBoundingClientRect().height + 240) + 'px'
+    await new Promise((r) => setTimeout(r, 400))
+    return { id: watched.dataset.msgId, drift: watched.getBoundingClientRect().top - box.top - was }
+  })()`)
+  check(Math.abs(moved.drift) < 2, 'a row above growing leaves the row being read where it was', `moved ${moved.drift}px`)
+
+  // And the position itself did not fall back towards where the bar appeared.
+  const after = await page.evaluate(`document.querySelector('.messagelist-scroll').scrollTop`)
+  check(after >= before - 4, 'the view did not go back up the log', `${before} -> ${after}`)
+} finally {
+  await stop()
+  irc.close()
+}
+console.log(failures ? `${failures} FAILED` : 'all passed')
+process.exit(failures ? 1 : 0)
@@ -0,0 +1,52 @@
+#!/usr/bin/env sh
+# Keeps a development checkout from filling the disk.
+#
+# Everything this removes is build output that the next build makes again, and
+# none of it is the project: it is what grew to a hundred gigabytes without
+# anybody choosing it.
+#
+# - dist/ got one AppImage per deploy and never lost one. Only the newest few
+#   are kept; the installed copy lives in ~/.local/bin.
+# - Cargo never removes what a build no longer uses. Every change to a
+#   dependency, a feature or the compiler leaves the old build beside the new
+#   one, so nobilis/target held fifty copies of each library. Past a size it
+#   is emptied, and the build that follows starts it again with only what is
+#   current. Run before a build, never after one: after, it would throw away
+#   the thing just made.
+# - Debug builds and the Windows cross-build are not what a deploy uses and
+#   are made again when somebody asks for them.
+#
+#   scripts/tidy.sh            (also run first by `npm run deploy`)
+set -eu
+
+SRC_DIR="$(cd "$(dirname "$0")/.." && pwd)"
+KEEP_APPIMAGES="${MOHO_KEEP_APPIMAGES:-2}"
+# In megabytes: a clean release build of the daemon is about two gigabytes.
+TARGET_LIMIT_MB="${MOHO_TARGET_LIMIT_MB:-8000}"
+
+size_mb() { du -sm "$1" 2>/dev/null | cut -f1; }
+
+# What is in dist/ besides the newest AppImages: older ones, Windows and
+# Debian packages, the unpacked trees and their block maps.
+if [ -d "$SRC_DIR/dist" ]; then
+  keep="$(ls -t "$SRC_DIR"/dist/*.AppImage 2>/dev/null | head -n "$KEEP_APPIMAGES")"
+  for f in "$SRC_DIR"/dist/* "$SRC_DIR"/dist/.[!.]*; do
+    [ -e "$f" ] || continue
+    case "$(basename "$f")" in builder-debug.yml|builder-effective-config.yaml|latest*.yml) continue ;; esac
+    printf '%s\n' "$keep" | grep -qxF "$f" && continue
+    rm -rf "$f"
+  done
+fi
+
+# A build directory left over from before the daemon lived in nobilis/.
+rm -rf "$SRC_DIR/target"
+
+TARGET="$SRC_DIR/nobilis/target"
+if [ -d "$TARGET" ]; then
+  rm -rf "$TARGET/debug" "$TARGET"/x86_64-pc-windows-* "$TARGET"/aarch64-*
+  used="$(size_mb "$TARGET")"
+  if [ "${used:-0}" -gt "$TARGET_LIMIT_MB" ]; then
+    echo "tidy: nobilis/target is ${used} MB, over ${TARGET_LIMIT_MB} MB - emptying it; the next build starts it fresh"
+    rm -rf "$TARGET"
+  fi
+fi
@@ -101,7 +101,14 @@ try {

  // With an IRC account connected - which has away and back, and no invisible -
  // the menu offers what IRC can be set to, and the daemon takes it.
-  const irc = await fakeIrc({ people: ['bob'], onJoin: (channel, _nick, send) => send(`:bob!b@h PRIVMSG ${channel} :hello there`) })
+  const aways = []
+  const irc = await fakeIrc({
+    people: ['bob'],
+    onJoin: (channel, _nick, send) => send(`:bob!b@h PRIVMSG ${channel} :hello there`),
+    onLine: (line) => {
+      if (/^AWAY/i.test(line)) aways.push(line)
+    }
+  })
  try {
    await openIrcChannel(page, { port: irc.address().port, nick: 'checker', channels: ['#lobby'], waitFor: 'hello there' })
    await until(main, 'globalThis.__mohoTray.menu().find((i) => i.label === "Status").submenu.length === 3', 'the menu to offer only IRC\'s statuses')
@@ -114,6 +121,68 @@ try {
    await tray('t.click(["Status", "Do not disturb"])')
    await until(page, 'window.moho.rpc("listAccounts", {}).then((a) => a.find((x) => x.id.startsWith("checker")).status === "dnd")', 'IRC to go to Do not disturb')
    check((await statusOf()) === 'dnd', 'Do not disturb from the tray sets it')
+
+    // Going idle when the person steps away, and only when they are online.
+    const shown = () => page.evaluate('window.moho.rpc("listAccounts", {}).then((a) => { const x = a.find((y) => y.id.startsWith("checker")); return { status: x.status, auto: !!x.autoIdle } })')
+    const waitFor = (expr, what) => until(page, `window.moho.rpc("listAccounts", {}).then((a) => { const x = a.find((y) => y.id.startsWith("checker")); return ${expr} })`, what)
+    await tray('t.click(["Status", "Online"])')
+    await waitFor('x.status === "online"', 'online again')
+    await tray('t.idle(true)')
+    await waitFor('x.status === "idle" && x.autoIdle === true', 'an online account to go idle when its person steps away')
+    check(true, 'stepping away turns an online account idle, as automatic')
+    await sleep(500)
+    check(aways.some((l) => /AWAY :?Idle/i.test(l)), 'and IRC is told it is away', JSON.stringify(aways))
+    await tray('t.idle(false)')
+    await waitFor('x.status === "online" && !x.autoIdle', 'it to come back')
+    check(aways.some((l) => /^AWAY\s*$/i.test(l)), 'coming back puts it right without anybody touching it', JSON.stringify(aways))
+
+    // What was chosen is never moved.
+    await tray('t.click(["Status", "Do not disturb"])')
+    await waitFor('x.status === "dnd"', 'Do not disturb')
+    await tray('t.idle(true)')
+    await sleep(800)
+    let now = await shown()
+    check(now.status === 'dnd' && !now.auto, 'Do not disturb is kept when they step away', JSON.stringify(now))
+    await tray('t.idle(false)')
+    await sleep(500)
+    now = await shown()
+    check(now.status === 'dnd', 'and when they come back', JSON.stringify(now))
+    await tray('t.click(["Status", "Idle"])')
+    await waitFor('x.status === "idle" && !x.autoIdle', 'a chosen Idle')
+    await tray('t.idle(true)')
+    await tray('t.idle(false)')
+    await sleep(500)
+    now = await shown()
+    check(now.status === 'idle' && !now.auto, 'a chosen Idle stays until Online is chosen', JSON.stringify(now))
+    await tray('t.click(["Status", "Online"])')
+    await waitFor('x.status === "online"', 'online again')
+
+    // The tray's number is the window's: it follows what is waiting, by the rail's rule.
+    const stage = (patch) => page.evaluate(`(() => { const s = window.__mohoShots.state(); const id = s.buffers.find((b) => b.kind === 'channel' && b.id.startsWith('checker')).id; window.__chan = id; window.__mohoShots.patch({ buffers: s.buffers.map((b) => (b.id === id ? { ...b, ...(${JSON.stringify(patch)}) } : b)) }); return id })()`)
+    const counted = async (want, what) => {
+      await until(main, `(() => { const s = globalThis.__mohoTray.state(); return s.mentions === ${want.mentions} && s.dms === ${want.dms} })()`, what)
+      check(true, what)
+    }
+    await tray('t.update({ unread: 0, dms: 0, mentions: 0 })')
+    const chan = await stage({ unread: 33, mentions: 2, highlight: true })
+    await counted({ mentions: 2, dms: 0 }, 'two mentions in a busy channel make the tray say two, not thirty-three')
+    check((await tray('t.state().latest')) === chan, 'and the menu opens that channel')
+    // Said the way another window would say it, through main.
+    const chanId = await page.evaluate('window.__chan')
+    await tray(`t.pref('mutedBuffers', [${JSON.stringify(chanId)}])`)
+    await counted({ mentions: 2, dms: 0 }, 'muting it leaves its mentions on the tray - a mute stops the popups, not the count')
+    await stage({ unread: 40, mentions: 0, highlight: false })
+    await counted({ mentions: 0, dms: 0 }, 'and what else is said in it counts for nothing')
+    await tray("t.pref('mutedBuffers', [])")
+    await stage({ unread: 33, mentions: 2, highlight: true })
+    await counted({ mentions: 2, dms: 0 }, 'unmuting changes nothing about the number')
+    await stage({ unread: 0, mentions: 0, highlight: false })
+    await counted({ mentions: 0, dms: 0 }, 'reading it somewhere else clears the tray as it clears the window')
+    await page.evaluate(`(() => { const s = window.__mohoShots.state(); window.__mohoShots.patch({ buffers: [...s.buffers, { id: 'checker@localhost|bobdm', accountId: s.accounts[0].id, kind: 'dm', name: 'bob', lastActivityTs: 1, unread: 3, highlight: false, mentions: 0 }] }); return true })()`)
+    await counted({ mentions: 0, dms: 3 }, 'a direct message counts for each unread message in it')
+    check(/3 direct messages/.test(await tray('t.tooltip()')), 'and the tooltip says so', await tray('t.tooltip()'))
+    await page.evaluate(`(() => { const s = window.__mohoShots.state(); window.__mohoShots.patch({ buffers: s.buffers.filter((b) => b.id !== 'checker@localhost|bobdm') }); return true })()`)
+    await counted({ mentions: 0, dms: 0 }, 'and the tray is empty again')
  } finally {
    irc.close()
  }
@@ -133,6 +202,14 @@ try {
  check(stayed === '~mentions', 'a redrawn tray leaves the chosen server chosen', `${away} -> ${stayed}`)
  await tray('t.update({ unread: 0, dms: 0, mentions: 0 })')

+  // Using a window is heard by main - and only that it happened.
+  const heardBefore = await tray('t.lastActivity()')
+  await sleep(6000)
+  await page.call('Input.dispatchMouseEvent', { type: 'mouseMoved', x: 300, y: 300, button: 'none', clickCount: 0 })
+  await sleep(500)
+  const heardAfter = await tray('t.lastActivity()')
+  check(heardAfter > heardBefore, 'moving the pointer in a window is heard as being here', `${heardBefore} -> ${heardAfter}`)
+
  // Restart brings back moho and a daemon of its own.
  const before = daemons(scratchDir)
  const pidBefore = await main.evaluate('process.pid')
@@ -171,6 +171,76 @@ const discord = (inCall) => async (page) => {
  await sleep(300)
 }

+
+// --- GIFs (#331) ---------------------------------------------------------------
+
+/**
+ * Three messages that link to GIFs, with or without what the daemon or Discord
+ * says about them: a Tenor page, a Giphy page and a Klipy page. Without, they
+ * are the addresses they were before; with, the first two are the GIFs - the
+ * Klipy page is one nothing can read, and stays a link either way.
+ *
+ * The pictures are made with ffmpeg and handed to the window as blob and data
+ * URLs, since it plays only https media and nothing is fetched from anywhere.
+ */
+const stageGifs = (withEmbeds) => async (page) => {
+  const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'moho-gifs-'))
+  const clip = (name, source) => {
+    const file = path.join(dir, name)
+    execFileSync('ffmpeg', ['-v', 'error', '-f', 'lavfi', '-i', source, '-pix_fmt', 'yuv420p', '-y', file])
+    return fs.readFileSync(file).toString('base64')
+  }
+  const mp4 = clip('cat.mp4', 'gradients=s=300x200:d=3:r=15:speed=0.02:c0=0xe0a43a:c1=0xb0457a:c2=0x3a8fe0:nb_colors=3')
+  const gif = (() => {
+    const file = path.join(dir, 'wave.gif')
+    execFileSync('ffmpeg', ['-v', 'error', '-f', 'lavfi', '-i', 'gradients=s=260x180:d=2:r=12:speed=0.03:c0=0x3ae0a4:c1=0x4a2f9a:nb_colors=2', '-y', file])
+    return fs.readFileSync(file).toString('base64')
+  })()
+  fs.rmSync(dir, { recursive: true, force: true })
+  await page.evaluate(`(() => {
+    const shots = window.__mohoShots
+    const s = shots.state()
+    const id = s.activeBufferId
+    const now = Math.floor(Date.now() / 1000)
+    const bytes = Uint8Array.from(atob('${mp4}'), (c) => c.charCodeAt(0))
+    const MP4 = URL.createObjectURL(new Blob([bytes], { type: 'video/mp4' }))
+    const GIF = 'data:image/gif;base64,${gif}'
+    const msg = (n, from, body, embeds) => ({ id: 'gif' + n, bufferId: id, from, senderId: from, body, ts: now - (60 - n) * 20, isAction: false, isHighlight: false, kind: 'chat', isOwn: false, ...(embeds ? { embeds } : {}) })
+    const embeds = ${withEmbeds ? 'true' : 'false'}
+    shots.patch({ messagesByBuffer: { ...s.messagesByBuffer, [id]: [...(s.messagesByBuffer[id] || []),
+      msg(1, 'alice', 'this is how it feels on a monday https://tenor.com/view/monday-cat-gif-22954713', embeds ? [{ kind: 'gif', url: 'https://tenor.com/view/monday-cat-gif-22954713', mediaUrl: MP4, mediaKind: 'video', width: 300, height: 200, provider: 'Tenor' }] : undefined),
+      msg(2, 'bob', 'https://giphy.com/gifs/wave-hello-Z7wFi5b2VEAr6', embeds ? [{ kind: 'gif', url: 'https://giphy.com/gifs/wave-hello-Z7wFi5b2VEAr6', mediaUrl: GIF, mediaKind: 'image', width: 260, height: 180, provider: 'Giphy' }] : undefined),
+      msg(3, 'carol', 'and from klipy: https://klipy.com/gifs/friends-joey-53')
+    ] } })
+    return true
+  })()`)
+  await sleep(900)
+}
+
+/** The GIF picker, open, with a handful of invented GIFs to look through. */
+const openGifPicker = async (page) => {
+  await page.evaluate(`(() => {
+    const shots = window.__mohoShots
+    const s = shots.state()
+    const art = (a, b, label, w, h) => 'data:image/svg+xml;utf8,' + encodeURIComponent('<svg xmlns="http://www.w3.org/2000/svg" width="' + w + '" height="' + h + '" viewBox="0 0 ' + w + ' ' + h + '"><defs><linearGradient id="g" x1="0" y1="0" x2="1" y2="1"><stop offset="0" stop-color="' + a + '"/><stop offset="1" stop-color="' + b + '"/></linearGradient></defs><rect width="' + w + '" height="' + h + '" fill="url(#g)"/><text x="' + (w / 2) + '" y="' + (h / 2 + 14) + '" font-size="44" font-family="sans-serif" fill="#fff" text-anchor="middle">' + label + '</text></svg>')
+    const gif = (id, title, a, b, w, h) => ({ id, title, url: 'https://tenor.com/view/' + id, src: '', gifSrc: '', preview: art(a, b, title, w, h), width: w, height: h })
+    window.__gifFixture = {
+      categories: [{ name: 'reaction', src: '' }, { name: 'happy', src: '' }, { name: 'dancing', src: '' }, { name: 'cats', src: '' }, { name: 'applause', src: '' }, { name: 'facepalm', src: '' }],
+      gifs: [
+        gif('1', 'cat dance', '#e0a43a', '#b0457a', 480, 300), gif('2', 'thumbs up', '#3a8fe0', '#4a2f9a', 300, 300),
+        gif('3', 'happy dog', '#3ae0a4', '#1f6f5a', 480, 270), gif('4', 'mind blown', '#e05a3a', '#7a2f2f', 300, 360),
+        gif('5', 'clapping', '#8a5ae0', '#3a3fa0', 480, 270), gif('6', 'wow', '#e0d03a', '#a07a1f', 300, 300)
+      ]
+    }
+    shots.patch({ accounts: [...s.accounts, { id: 'discord:gifs', service: 'discord', displayName: 'x', state: 'connected', autojoin: '', currentNick: 'x', status: 'online', useTor: false, ssl: true }] })
+    return true
+  })()`)
+  await sleep(500)
+  await page.evaluate(click('button[title="GIFs"]'))
+  await until(page, 'document.querySelector(".gif-cell")', 'the GIFs')
+  await sleep(500)
+}
+
 // --- scenes ------------------------------------------------------------------

 /** Messages with several pictures, one of them a spoiler (#304): two, three and four, then a lone spoiler. */
@@ -270,6 +340,18 @@ const setMode = async (page, mode) => {
 * `video` scenes are recorded instead, while `act` runs.
 */
 const SCENES = [
+  {
+    name: 'gif-links-before',
+    setup: async (p) => { await setMode(p, 'comfy'); await openChannel(p, '#general'); await stageGifs(false)(p) }
+  },
+  {
+    name: 'gif-links-after',
+    setup: async (p) => { await setMode(p, 'comfy'); await openChannel(p, '#general'); await stageGifs(true)(p) }
+  },
+  {
+    name: 'gif-picker',
+    setup: async (p) => { await setMode(p, 'comfy'); await openChannel(p, '#general'); await openGifPicker(p) }
+  },
  { name: 'irc-channel-comfy', setup: async (p) => { await setMode(p, 'comfy'); await openChannel(p, '#general') } },
  {
    // History from several days, scrolled to its start: where date
@@ -511,6 +593,19 @@ const SCENES = [
      await sleep(300)
    }
  },
+  {
+    name: 'settings-presence',
+    setup: async (p) => {
+      await p.evaluate(`window.__mohoShots.store.setActivePanel('settings')`)
+      await sleep(400)
+      await p.evaluate(`(() => {
+        const el = [...document.querySelectorAll('h1, h2, h3, h4, .settings-section-title')].find((e) => e.textContent.trim() === 'Presence')
+        el?.scrollIntoView({ block: 'start' })
+        return !!el
+      })()`)
+      await sleep(400)
+    }
+  },
  { name: 'settings-general', setup: async (p) => { await p.evaluate(`window.__mohoShots.store.setActivePanel('settings')`); await sleep(400) } },
  {
    name: 'settings-tor',
@@ -0,0 +1,107 @@
+import { describe, expect, it } from 'vitest'
+import { IdleWatcher } from './idle'
+
+const MIN = 60_000
+
+/** A watcher on a clock the test holds, with the system's idle time a figure it sets. */
+function watcher(over: { enabled?: boolean; minutes?: number } = {}): {
+  w: IdleWatcher
+  clock: { now: number; system: number; enabled: boolean }
+  said: boolean[]
+} {
+  const clock = { now: 1_000_000, system: 0, enabled: over.enabled ?? true }
+  const said: boolean[] = []
+  const w = new IdleWatcher({
+    now: () => clock.now,
+    systemIdleSeconds: () => clock.system,
+    enabled: () => clock.enabled,
+    thresholdMs: () => (over.minutes ?? 10) * MIN,
+    onChange: (idle) => said.push(idle)
+  })
+  return { w, clock, said }
+}
+
+describe('being away, by moho\'s own windows', () => {
+  it('is away after the threshold with nothing touched, and says so once', () => {
+    const { w, clock, said } = watcher()
+    clock.now += 9 * MIN
+    w.evaluate()
+    expect(w.isIdle()).toBe(false)
+    clock.now += 2 * MIN
+    w.evaluate()
+    w.evaluate()
+    expect(w.isIdle()).toBe(true)
+    expect(said).toEqual([true])
+  })
+
+  it('is back the moment anything is used', () => {
+    const { w, clock, said } = watcher()
+    clock.now += 11 * MIN
+    w.evaluate()
+    w.activity()
+    expect(w.isIdle()).toBe(false)
+    expect(said).toEqual([true, false])
+  })
+
+  it('counts use as starting the clock again', () => {
+    const { w, clock } = watcher()
+    clock.now += 9 * MIN
+    w.activity()
+    clock.now += 9 * MIN
+    w.evaluate()
+    expect(w.isIdle()).toBe(false)
+  })
+
+  it('does nothing at all when it is switched off', () => {
+    const { w, clock, said } = watcher({ enabled: false })
+    clock.now += 60 * MIN
+    w.evaluate()
+    expect(said).toEqual([])
+  })
+
+  it('comes back when it is switched off while away', () => {
+    const { w, clock, said } = watcher()
+    clock.now += 11 * MIN
+    w.evaluate()
+    clock.enabled = false
+    w.evaluate()
+    expect(said).toEqual([true, false])
+  })
+})
+
+describe('being away, by the system\'s idle time', () => {
+  it('does not take a zero that never changes for somebody who never stops', () => {
+    // A platform that cannot say reports zero for ever; moho's own windows decide.
+    const { w, clock } = watcher()
+    clock.system = 0
+    clock.now += 11 * MIN
+    w.evaluate()
+    expect(w.isIdle()).toBe(true)
+  })
+
+  it('believes the system once it has been seen to be anything but zero, and counts use elsewhere as being here', () => {
+    const { w, clock } = watcher()
+    clock.system = 3
+    w.evaluate()
+    // Eleven minutes of not touching moho, but the keyboard was used a minute ago.
+    clock.now += 11 * MIN
+    clock.system = 60
+    w.evaluate()
+    expect(w.isIdle()).toBe(false)
+    // And then it really is eleven minutes everywhere.
+    clock.system = 11 * 60
+    w.evaluate()
+    expect(w.isIdle()).toBe(true)
+  })
+})
+
+describe('locking', () => {
+  it('is away at once when the screen locks and back when it unlocks', () => {
+    const { w, said } = watcher()
+    w.lock()
+    expect(w.isIdle()).toBe(true)
+    w.unlock()
+    expect(w.isIdle()).toBe(false)
+    expect(said).toEqual([true, false])
+  })
+})
@@ -0,0 +1,97 @@
+/**
+ * Whether the person has stepped away, which is all this knows.
+ *
+ * Discord's own client and every IRC client that sets itself away work from the
+ * same one fact - how long since anything was touched - and nothing else: not
+ * what is on screen, not what was typed, not which program is in front. This is
+ * kept to that, and is deliberately small: a clock, two sources of "how long",
+ * and a threshold.
+ *
+ * The two sources are the system's own idle time, where the platform will say
+ * (Windows, macOS, X11), and moho's own windows being used, which every
+ * platform can say. Some Wayland desktops give Chromium no idle time at all and
+ * report zero for ever, which looks exactly like somebody who never stops
+ * typing; so the system's figure is only believed once it has been seen to be
+ * anything but zero, and until then - and where it never is - moho goes by its
+ * own windows.
+ */
+
+export interface IdleOptions {
+  now: () => number
+  /** Seconds since the last keyboard or mouse input anywhere; 0 where the platform cannot say. */
+  systemIdleSeconds: () => number
+  enabled: () => boolean
+  thresholdMs: () => number
+  /** Said when the answer changes, and only then. */
+  onChange: (idle: boolean) => void
+}
+
+export class IdleWatcher {
+  private lastActivity: number
+  private systemKnown = false
+  private away = false
+  /** The screen is locked or the machine asleep: away at once, whatever the clock says. */
+  private locked = false
+  private forced: boolean | null = null
+
+  constructor(private o: IdleOptions) {
+    this.lastActivity = o.now()
+  }
+
+  isIdle(): boolean {
+    return this.away
+  }
+
+  /** When something was last used in a moho window, for the harness to see that it was heard. */
+  lastActivityAt(): number {
+    return this.lastActivity
+  }
+
+  /** Something was used in a moho window - including coming back to one. */
+  activity(): void {
+    this.lastActivity = this.o.now()
+    this.locked = false
+    this.evaluate()
+  }
+
+  lock(): void {
+    this.locked = true
+    this.evaluate()
+  }
+
+  unlock(): void {
+    this.locked = false
+    this.lastActivity = this.o.now()
+    this.evaluate()
+  }
+
+  /** For the harness: an answer that the clock does not get to change. */
+  forceForTesting(idle: boolean | null): void {
+    this.forced = idle
+    this.evaluate()
+  }
+
+  /** Asks the clocks, and says so if the answer is different. Run on a timer, and when a setting moves. */
+  evaluate(): void {
+    this.set(this.decide())
+  }
+
+  private decide(): boolean {
+    if (this.forced !== null) return this.forced
+    if (!this.o.enabled()) return false
+    if (this.locked) return true
+    const system = this.o.systemIdleSeconds()
+    if (system > 0) this.systemKnown = true
+    const own = this.o.now() - this.lastActivity
+    // Whichever is shorter: a keystroke in another program counts as being
+    // here once the system can say so, and one in moho counts either way.
+    const idleFor = this.systemKnown ? Math.min(own, system * 1000) : own
+    return idleFor >= this.o.thresholdMs()
+  }
+
+  private set(idle: boolean): void {
+    if (idle === this.away) return
+    this.away = idle
+    this.o.onChange(idle)
+  }
+}
@@ -13,6 +13,7 @@ import {
  nativeImage,
  nativeTheme,
  net,
+  powerMonitor,
  session,
  Menu,
  screen,
@@ -25,6 +26,7 @@ import { defaultSocketPath, NobilisClient } from './nobilis-client'
 import { NobilisProcess } from './nobilis-process'
 import { Prefs } from './prefs'
 import { Notifier } from './notifications'
+import { IdleWatcher } from './idle'
 import { NOTHING_WAITING, trayIconFile, trayMenu, trayTooltip, type TrayState, type TrayStatus } from './tray'
 import { browserLogin, LOGIN_FLOWS } from './browser-login'
 import { EDIT_ACTIONS, IPC, POPOUT_FLAG, UI_SHOTS_FLAG, type EditAction, type EditMenuRequest, type PopoutState } from '../shared/ipc'
@@ -134,6 +136,7 @@ let prefs: Prefs
 let nobilis: NobilisProcess
 let client: NobilisClient
 let notifier: Notifier
+let idleWatcher: IdleWatcher
 let registeredHotkey: string | null = null

 /**
@@ -214,6 +217,7 @@ function applyPref(key: string, value: unknown, except?: Electron.WebContents):
  // Pins and mutes feed the tray/notification rules, which live here.
  if (key === 'pinnedBuffers' || key === 'mutedBuffers') notifier.publish()
  if (key === 'hotkey.toggle') applyHotkey(String(value))
+  if (key === 'presence.autoIdle' || key === 'presence.autoIdleMinutes') idleWatcher?.evaluate()
 }

 /**
@@ -675,7 +679,7 @@ function refreshTrayMenu(): void {
    {
      toggleWindow,
      openLatest: () => {
-        const id = notifier.latestUnread()
+        const id = lastTray.latest ?? notifier.latestUnread()
        if (id) openConversation(id)
      },
      openSettings: () => tellWindow('settings'),
@@ -782,6 +786,16 @@ function wireIpc(): void {
    updateTray(lastTray)
  })

+  ipcMain.on(IPC.activity, () => idleWatcher.activity())
+
+  // What is waiting, as the window counts it. The tray's number is the window's
+  // own: counted here from notifications it drifted from what the window showed.
+  ipcMain.on(IPC.trayUnread, (_e, count: { dms: number; mentions: number; latest: string | null }) => {
+    const dms = Math.max(0, Number(count?.dms) || 0)
+    const mentions = Math.max(0, Number(count?.mentions) || 0)
+    updateTray({ unread: dms + mentions, dms, mentions, latest: typeof count?.latest === 'string' ? count.latest : null })
+  })
+
  ipcMain.handle(IPC.markBufferRead, (_e, bufferId: string) => notifier.clear(bufferId))

  // Every window draws its own title bar, so these act on whichever window
@@ -1235,9 +1249,27 @@ app.whenReady().then(() => {
  nobilis = new NobilisProcess()
  client = new NobilisClient()

+  // Going idle when the person steps away. What it says, and to whom, is
+  // decided in the daemon - which accounts are online, which are in a call -
+  // so all this says is whether they are here.
+  idleWatcher = new IdleWatcher({
+    now: () => Date.now(),
+    systemIdleSeconds: () => powerMonitor.getSystemIdleTime(),
+    enabled: () => prefs.get<boolean>('presence.autoIdle', true),
+    thresholdMs: () => (Number(prefs.get<unknown>('presence.autoIdleMinutes', '10')) || 10) * 60_000,
+    onChange: (idle) => void client.request('setUserIdle', { idle }).catch(() => {})
+  })
+  setInterval(() => idleWatcher.evaluate(), 10_000).unref()
+  app.on('browser-window-focus', () => idleWatcher.activity())
+  powerMonitor.on('lock-screen', () => idleWatcher.lock())
+  powerMonitor.on('suspend', () => idleWatcher.lock())
+  powerMonitor.on('unlock-screen', () => idleWatcher.unlock())
+  powerMonitor.on('resume', () => idleWatcher.unlock())
+
  notifier = new Notifier(
    prefs,
-    updateTray,
+    // The tray's number is the window's, not this tally's - see IPC.trayUnread.
+    () => {},
    openConversation,
    () => mainWindow?.webContents ?? null,
    (bufferId) => popoutState().watched.includes(bufferId),
@@ -1247,6 +1279,8 @@ app.whenReady().then(() => {
  client.on('link', (up) => {
    send(IPC.link, up)
    if (!up) return
+    // A daemon that has just started knows nothing of this.
+    if (idleWatcher.isIdle()) void client.request('setUserIdle', { idle: true }).catch(() => {})
    // Before anything is fetched for the window: whether its own traffic goes
    // through Tor or the proxy is the daemon's setting, asked of it here.
    void applyTunnel((method, params) => client.request(method, params))
@@ -1293,6 +1327,10 @@ app.whenReady().then(() => {
  if (process.env.MOHO_UI_SHOTS === '1') {
    ;(globalThis as Record<string, unknown>).__mohoTray = {
      update: updateTray,
+      idle: (v: boolean | null) => idleWatcher.forceForTesting(v),
+      lastActivity: () => idleWatcher.lastActivityAt(),
+      state: () => lastTray,
+      pref: (key: string, value: unknown) => applyPref(key, value),
      icon: () => lastTrayIcon,
      tooltip: () => lastTrayTooltip,
      menu: () => lastTrayMenu,
@@ -15,6 +15,8 @@ export interface TrayState {
  dms: number
  /** Of those, everything else: somebody mentioning this account in a channel. */
  mentions: number
+  /** The conversation the menu's first line opens, where the window has said. */
+  latest?: string | null
 }

 export const NOTHING_WAITING: TrayState = { unread: 0, dms: 0, mentions: 0 }
@@ -99,6 +99,11 @@ const api = {
    ipcRenderer.send(IPC.trayStatus, statuses, offered, shown, invisibleName)
  },

+  /** Says what is waiting, counted the way the rail counts it, for the tray's number. */
+  setTrayUnread(count: { dms: number; mentions: number; latest: string | null }): void {
+    ipcRenderer.send(IPC.trayUnread, count)
+  },
+
  onMaximizeChange(cb: (maximized: boolean) => void): () => void {
    const handler = (_e: unknown, v: boolean): void => cb(v)
    ipcRenderer.on(IPC.maximizeChanged, handler)
@@ -228,6 +233,25 @@ const api = {
  }
 }

+/**
+ * Tells main that somebody is using this window.
+ *
+ * Only that it happened - the event's kind and what it touched are not looked
+ * at, and nothing about them is sent. It is what lets moho know the person has
+ * stepped away, which is the one thing it wants to know, and it is sent at most
+ * every few seconds however much is going on.
+ */
+let lastActivityPing = 0
+const noteActivity = (): void => {
+  const now = Date.now()
+  if (now - lastActivityPing < 5000) return
+  lastActivityPing = now
+  ipcRenderer.send(IPC.activity)
+}
+for (const kind of ['pointerdown', 'pointermove', 'keydown', 'wheel', 'touchstart']) {
+  ;(globalThis as unknown as EventTarget).addEventListener(kind, noteActivity, { capture: true, passive: true })
+}
+
 contextBridge.exposeInMainWorld('moho', api)

 export type MohoApi = typeof api
@@ -8,6 +8,7 @@ import { MessageList } from './components/MessageList'
 import { MentionsInbox } from './components/MentionsInbox'
 import { MentionsPage } from './components/MentionsPage'
 import { INVITE_PREFIX, MENTIONS_GROUP_ID } from './lib/groups'
+import { trayCount } from './lib/traycount'
 import { Composer } from './components/Composer'
 import { MembershipGate } from './components/MembershipGate'
 import { NickList } from './components/NickList'
@@ -89,6 +90,22 @@ export default function App(): JSX.Element {
    else delete document.documentElement.dataset.reduceMotion
  }, [density, reduceMotion])
  const [userListFolded, setUserListFolded] = usePref<boolean>('ui.userListFolded', false)
+
+  // What the tray says is waiting, which is whatever the rail would add up to:
+  // the same rule, from the same lists, said to the main process whenever the
+  // answer changes. Told only when it has, since most changes to the buffers
+  // are not to what is waiting.
+  const [trayMuted] = usePref<string[]>('mutedBuffers', [])
+  const [trayHidden] = usePref<string[]>('hiddenBuffers', [])
+  const [trayMutedGroups] = usePref<string[]>('mutedGroups', [])
+  const lastTray = useRef('')
+  useEffect(() => {
+    const count = trayCount(allBuffers, trayMuted, trayHidden, trayMutedGroups)
+    const said = JSON.stringify(count)
+    if (said === lastTray.current) return
+    lastTray.current = said
+    window.moho.setTrayUnread(count)
+  }, [allBuffers, trayMuted, trayHidden, trayMutedGroups])
  const [savedBufferId] = usePref<string>('ui.activeBufferId', '')
  const [savedGroupId] = usePref<string>('ui.activeGroupId', '')

@@ -10405,3 +10405,103 @@ html[data-reduce-motion] *::after {
  flex-wrap: wrap;
  gap: var(--spacing-xs);
 }
+
+
+/* GIFs to browse and send. */
+.gif-picker {
+  position: fixed;
+  z-index: var(--z-picker);
+  width: min(420px, calc(100vw - 8px));
+  height: min(480px, calc(100vh - 8px));
+  display: flex;
+  flex-direction: column;
+  gap: var(--spacing-xs);
+  padding: var(--spacing-s);
+  overflow: hidden;
+  border-radius: var(--corner-radius);
+  background: var(--surface-container-high);
+  border: 1px solid var(--outline-medium);
+  box-shadow: var(--shadow-2);
+  animation: overlay-in var(--motion) var(--ease);
+}
+
+.gif-search {
+  display: flex;
+  align-items: center;
+  gap: var(--spacing-xs);
+  padding: 0 var(--spacing-xs);
+  color: var(--surface-variant-text);
+}
+
+.gif-search .text-field {
+  flex: 1;
+  min-width: 0;
+}
+
+.gif-scroll {
+  flex: 1;
+  min-height: 0;
+  overflow-y: auto;
+}
+
+.gif-categories {
+  display: flex;
+  flex-wrap: wrap;
+  gap: var(--spacing-xs);
+  padding-bottom: var(--spacing-s);
+}
+
+.gif-category {
+  padding: var(--spacing-xxs) var(--spacing-s);
+  border-radius: var(--radius-pill);
+  background: var(--surface-hover);
+  color: var(--surface-text);
+  font-size: var(--font-size-small);
+  text-transform: capitalize;
+}
+
+.gif-category:hover {
+  background: var(--surface-selected);
+}
+
+.gif-empty {
+  padding: var(--spacing-l);
+  text-align: center;
+}
+
+.gif-grid {
+  display: flex;
+  gap: var(--spacing-xs);
+  align-items: flex-start;
+}
+
+.gif-column {
+  flex: 1;
+  min-width: 0;
+  display: flex;
+  flex-direction: column;
+  gap: var(--spacing-xs);
+}
+
+.gif-cell {
+  display: block;
+  width: 100%;
+  padding: 0;
+  overflow: hidden;
+  border-radius: var(--radius-s, 6px);
+  background: var(--surface-container);
+  cursor: pointer;
+}
+
+.gif-cell:hover,
+.gif-cell:focus-visible {
+  outline: 2px solid var(--primary);
+}
+
+.gif-cell video,
+.gif-cell img {
+  display: block;
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+}
@@ -19,6 +19,7 @@ import {
  MENTIONS_GROUP_ID,
  PINNED_GROUP_ID,
  pinnedGroup,
+  waitingCount,
  visibleGroups,
  type RailGroup
 } from '../lib/groups'
@@ -248,6 +249,11 @@ export function BufferList(): JSX.Element {
  // The menu still toggles a buffer's *own* flag independently of a muted
  // rail entry above it, the same way muting a channel inside an
  // already-muted Slack workspace works.
+  /** The call that sets a mute on the account itself, for a service that keeps one. */
+  const accountMute = (accountId: string): string | null => {
+    const service = accounts.find((a) => a.id === accountId)?.service
+    return service === 'matrix' ? 'setMatrixRoomMuted' : service === 'discord' ? 'setDiscordChannelMuted' : null
+  }
  const isEffectivelyMuted = (buffer: BufferEntry): boolean =>
    isMutedBuffer(buffer, muted, mutedGroups)

@@ -304,20 +310,20 @@ export function BufferList(): JSX.Element {
      onTogglePin={() => togglePin(b.id)}
      onToggleMute={() => {
        toggleMute(b.id)
-        // On Matrix the account itself can hold the answer, so muting here
-        // mutes on a phone too. Everywhere else this stays what it always
-        // was: a preference belonging to this window.
-        if (accounts.find((a) => a.id === b.accountId)?.service === 'matrix') {
+        // On Matrix and Discord the account itself can hold the answer, so
+        // muting here mutes on a phone too. Everywhere else this stays what
+        // it always was: a preference belonging to this window.
+        const writeBack = accountMute(b.accountId)
+        if (writeBack)
          void window.moho
-            .rpc('setMatrixRoomMuted', { bufferId: b.id, muted: !isEffectivelyMuted(b) })
+            .rpc(writeBack, { bufferId: b.id, muted: !isEffectivelyMuted(b) })
            .catch((e: Error) => store.toast('error', e.message))
-        }
      }}
      onUnmuteAccount={
-        accounts.find((a) => a.id === b.accountId)?.service === 'matrix'
+        accountMute(b.accountId)
          ? () =>
              void window.moho
-                .rpc('setMatrixRoomMuted', { bufferId: b.id, muted: false })
+                .rpc(accountMute(b.accountId)!, { bufferId: b.id, muted: false })
                .catch((e: Error) => store.toast('error', e.message))
          : undefined
      }
@@ -593,12 +599,12 @@ export function BufferList(): JSX.Element {
                            // What is waiting in what is folded away, which is
                            // the thing worth knowing about a closed heading;
                            // how many channels it has is the fallback.
-                            const waiting = section.buffers.filter((b) => b.unread > 0 && (!isEffectivelyMuted(b) || b.highlight))
-                            const unread = waiting.reduce((n, b) => n + b.unread, 0)
+                            const waiting = section.buffers.filter((b) => waitingCount(b, isEffectivelyMuted(b)) > 0)
+                            const unread = waiting.reduce((n, b) => n + waitingCount(b, isEffectivelyMuted(b)), 0)
                            return unread > 0 ? (
                              <span
                                className={classes('unread-badge category-count', waiting.some((b) => b.highlight) && 'highlight')}
-                                title={`${unread} unread in ${waiting.length} ${waiting.length === 1 ? 'channel' : 'channels'}`}
+                                title={`${unread} ${unread === 1 ? 'mention' : 'mentions'} in ${waiting.length} ${waiting.length === 1 ? 'channel' : 'channels'}`}
                              >
                                {unread > 99 ? '99+' : unread}
                              </span>
@@ -1062,9 +1068,9 @@ function BufferRow({
            arrive is worse than either on its own. */}
        {live ? (
          <span className="live-badge">LIVE</span>
-        ) : buffer.unread > 0 && (!muted || buffer.highlight) ? (
-          <span className={classes('unread-badge', buffer.highlight && 'highlight')}>
-            {buffer.unread > 99 ? '99+' : buffer.unread}
+        ) : waitingCount(buffer, muted) > 0 ? (
+          <span className={classes('unread-badge', (buffer.highlight || muted) && 'highlight')}>
+            {waitingCount(buffer, muted) > 99 ? '99+' : waitingCount(buffer, muted)}
          </span>
        ) : (
          // Left unread on purpose, with nothing new in it. A dot rather than
@@ -9,6 +9,7 @@ import torMark from '../assets/tor.svg'
 import { PollComposer } from './PollComposer'
 import { Avatar } from './Avatar'
 import { COMMON_EMOJI, emojiToken, EmojiPicker, type StickerEntry } from './EmojiPicker'
+import { GifPicker } from './GifPicker'
 import { PlaceField } from './PlaceField'
 import { VoiceRecorder } from './VoiceRecorder'
 import { useActiveBuffer, useChat, useStore } from '../state/hooks'
@@ -133,6 +134,7 @@ export function Composer({ thread = false }: { thread?: boolean } = {}): JSX.Ele
  /** The account's sticker packs, fetched when the picker is first opened. */
  const [stickers, setStickers] = useState<StickerEntry[]>([])
  const [stickerPicker, setStickerPicker] = useState(false)
+  const [gifPicker, setGifPicker] = useState(false)
  /**
   * What to do with files dropped on the window: they land in the tray, to be
   * looked over and sent with the next message rather than going out on the
@@ -218,6 +220,7 @@ export function Composer({ thread = false }: { thread?: boolean } = {}): JSX.Ele
  const [roles, setRoles] = useState<{ id: string; name: string; colour?: string }[]>([])
  const emojiButtonRef = useRef<HTMLButtonElement>(null)
  const stickerButtonRef = useRef<HTMLButtonElement>(null)
+  const gifButtonRef = useRef<HTMLButtonElement>(null)
  const plusButtonRef = useRef<HTMLButtonElement>(null)
  /** The "+" menu, where it opened. */
  const [plusMenu, setPlusMenu] = useState<{ x: number; y: number } | null>(null)
@@ -1259,6 +1262,7 @@ export function Composer({ thread = false }: { thread?: boolean } = {}): JSX.Ele
          title="Emoji"
          onClick={() => {
            setStickerPicker(false)
+            setGifPicker(false)
            if (!pickerOpen) loadStickers()
            setPickerOpen(!pickerOpen)
          }}
@@ -1266,6 +1270,25 @@ export function Composer({ thread = false }: { thread?: boolean } = {}): JSX.Ele
          <Icon name="mood" size={18} />
        </button>

+        {/* GIFs, wherever there is a Discord account to ask for them: the
+            picker borrows that account's way of looking, and what it finds can
+            be sent in any conversation. */}
+        {!thread && accounts.some((a) => a.service === 'discord') && (
+          <button
+            ref={gifButtonRef}
+            type="button"
+            className="icon-button"
+            title="GIFs"
+            onClick={() => {
+              setPickerOpen(false)
+              setStickerPicker(false)
+              setGifPicker(!gifPicker)
+            }}
+          >
+            <Icon name="gif_box" size={18} />
+          </button>
+        )}
+
        {/* Its own button beside the emoji one, because it is its own
            gesture: an emoji goes into the line being written and a sticker
            is the message. Only where the service has them: Matrix, where a
@@ -1279,6 +1302,7 @@ export function Composer({ thread = false }: { thread?: boolean } = {}): JSX.Ele
            onClick={() => {
              const opening = !stickerPicker
              setPickerOpen(false)
+              setGifPicker(false)
              setStickerPicker(opening)
              if (opening) loadStickers()
            }}
@@ -1323,6 +1347,16 @@ export function Composer({ thread = false }: { thread?: boolean } = {}): JSX.Ele
      {polling && <PollComposer bufferId={buffer.id} onClose={() => setPolling(false)} />}


+      {gifPicker && (
+        <GifPicker
+          anchor={gifButtonRef.current}
+          bufferId={buffer.id}
+          accountId={buffer.accountId}
+          discord={service === 'discord'}
+          onClose={() => setGifPicker(false)}
+        />
+      )}
+
      {(pickerOpen || stickerPicker) && (
        <EmojiPicker
          // Remounted when the other button is pressed, so it opens on that
@@ -0,0 +1,238 @@
+import { useEffect, useLayoutEffect, useRef, useState } from 'react'
+import { createPortal } from 'react-dom'
+import { Icon } from './Icon'
+import { useEscapeLayer } from '../lib/layers'
+import { useMediaUrl } from '../lib/route'
+import { useStore } from '../state/hooks'
+
+/** One of the GIFs the daemon lists: what to play, and what to send. */
+export interface GifEntry {
+  id: string
+  title: string
+  /** The page on Tenor or Klipy, which is what Discord is sent. */
+  url: string
+  /** The video, to play in the grid. */
+  src: string
+  /** The file, which is what everything that is not Discord is sent. */
+  gifSrc: string
+  preview: string
+  width: number
+  height: number
+}
+
+interface GifCategory {
+  name: string
+  src: string
+}
+
+/** How long after the last keystroke before a search is made. */
+const SEARCH_DELAY = 450
+
+/**
+ * GIFs to browse and send, as Discord's own picker has them: what is trending,
+ * a search, and a row of categories to start from.
+ *
+ * They come from Discord - any account will do, whichever conversation this is
+ * open in - and go anywhere: to a Discord conversation as the link Discord's
+ * own client sends, so that Discord unfurls it; to every other service as the
+ * file itself, which a window of this kind draws as the GIF and any other
+ * client shows as a link.
+ */
+export function GifPicker({
+  anchor,
+  bufferId,
+  accountId,
+  discord,
+  onClose
+}: {
+  anchor: HTMLElement | null
+  bufferId: string
+  accountId: string
+  /** Whether the conversation is on Discord, which decides what is sent. */
+  discord: boolean
+  onClose: () => void
+}): JSX.Element {
+  const store = useStore()
+  const media = useMediaUrl(accountId)
+  const ref = useRef<HTMLDivElement>(null)
+  const scroll = useRef<HTMLDivElement>(null)
+  const [pos, setPos] = useState({ left: 0, top: 0 })
+  const [query, setQuery] = useState('')
+  const [gifs, setGifs] = useState<GifEntry[]>([])
+  const [categories, setCategories] = useState<GifCategory[]>([])
+  const [state, setState] = useState<'loading' | 'ready' | 'failed'>('loading')
+  const [error, setError] = useState('')
+
+  useEscapeLayer(onClose)
+
+  // Above and right-aligned to its button, and kept in view, as the emoji
+  // picker is.
+  useLayoutEffect(() => {
+    const el = ref.current
+    if (!el || !anchor) return
+    const place = (): void => {
+      const a = anchor.getBoundingClientRect()
+      const r = el.getBoundingClientRect()
+      const left = Math.max(4, Math.min(a.right - r.width, window.innerWidth - r.width - 4))
+      const top = Math.max(4, Math.min(a.top - r.height - 6, window.innerHeight - r.height - 4))
+      setPos((was) => (was.left === left && was.top === top ? was : { left, top }))
+    }
+    place()
+    const ro = new ResizeObserver(place)
+    ro.observe(el)
+    window.addEventListener('resize', place)
+    return () => {
+      ro.disconnect()
+      window.removeEventListener('resize', place)
+    }
+  }, [anchor])
+
+  // Pressing anywhere else closes it; pressing inside, or on its button, does not.
+  useEffect(() => {
+    const onDown = (e: MouseEvent): void => {
+      const target = e.target as Node
+      if (ref.current?.contains(target) || anchor?.contains(target)) return
+      onClose()
+    }
+    window.addEventListener('mousedown', onDown, true)
+    return () => window.removeEventListener('mousedown', onDown, true)
+  }, [anchor, onClose])
+
+  // What is trending when it opens, and a search once typing has stopped. An
+  // answer that arrives after a newer question was asked is not shown.
+  useEffect(() => {
+    // The harness has no Discord to ask, so it can leave the answer here. Only
+    // a window it started has the hook it is read from.
+    const fixture = (window as unknown as { __mohoShots?: unknown; __gifFixture?: { gifs: GifEntry[]; categories: GifCategory[] } })
+    if (fixture.__mohoShots && fixture.__gifFixture) {
+      const wanted = query.trim().toLowerCase()
+      setGifs(fixture.__gifFixture.gifs.filter((g) => !wanted || g.title.toLowerCase().includes(wanted)))
+      setCategories(fixture.__gifFixture.categories)
+      setState('ready')
+      return
+    }
+    let current = true
+    setState('loading')
+    const wait = setTimeout(
+      () => {
+        window.moho
+          .rpc<{ gifs: GifEntry[]; categories: GifCategory[] }>('listGifs', { query: query.trim() })
+          .then((answer) => {
+            if (!current) return
+            setGifs(answer.gifs)
+            setCategories(answer.categories)
+            setState('ready')
+          })
+          .catch((e: Error) => {
+            if (!current) return
+            setError(e.message)
+            setState('failed')
+          })
+      },
+      query.trim() ? SEARCH_DELAY : 0
+    )
+    return () => {
+      current = false
+      clearTimeout(wait)
+    }
+  }, [query])
+
+  const pick = (gif: GifEntry): void => {
+    onClose()
+    // Discord's own client sends the link, which Discord turns into the GIF.
+    // Everything else is sent the file, since a page address would be only
+    // that.
+    void store.sendMessage(bufferId, discord ? gif.url : gif.gifSrc)
+  }
+
+  // Two columns, each GIF into whichever is shorter, so differently shaped ones
+  // fit together the way Discord's do.
+  const columns: GifEntry[][] = [[], []]
+  const heights = [0, 0]
+  for (const gif of gifs) {
+    const into = heights[0] <= heights[1] ? 0 : 1
+    columns[into].push(gif)
+    heights[into] += gif.width && gif.height ? gif.height / gif.width : 0.75
+  }
+
+  return createPortal(
+    <div ref={ref} className="gif-picker" style={{ left: pos.left, top: pos.top }} role="dialog" aria-label="GIFs">
+      <div className="gif-search">
+        <Icon name="search" size={18} />
+        <input
+          autoFocus
+          className="text-field"
+          value={query}
+          placeholder="Search for a GIF"
+          onChange={(e) => setQuery(e.target.value)}
+        />
+      </div>
+
+      <div className="gif-scroll" ref={scroll}>
+        {!query.trim() && categories.length > 0 && (
+          <div className="gif-categories">
+            {categories.map((c) => (
+              <button key={c.name} type="button" className="gif-category" onClick={() => setQuery(c.name)}>
+                {c.name}
+              </button>
+            ))}
+          </div>
+        )}
+
+        {state === 'failed' && <div className="gif-empty muted">{error || 'GIFs could not be loaded'}</div>}
+        {state === 'loading' && gifs.length === 0 && <div className="gif-empty muted">Loading…</div>}
+        {state === 'ready' && gifs.length === 0 && <div className="gif-empty muted">No GIFs found</div>}
+
+        {gifs.length > 0 && (
+          <div className="gif-grid">
+            {columns.map((column, i) => (
+              <div key={i} className="gif-column">
+                {column.map((gif) => (
+                  <GifCell key={gif.id} gif={gif} media={media} root={scroll} onPick={pick} />
+                ))}
+              </div>
+            ))}
+          </div>
+        )}
+      </div>
+    </div>,
+    document.body
+  )
+}
+
+/**
+ * One GIF. Played only while it is on screen: a grid of forty videos all
+ * running is a great deal of work for a list nobody is looking at the bottom
+ * of, so out of view it is a still picture and nothing more.
+ */
+function GifCell({
+  gif,
+  media,
+  root,
+  onPick
+}: {
+  gif: GifEntry
+  media: (url: string) => string
+  root: React.RefObject<HTMLDivElement | null>
+  onPick: (gif: GifEntry) => void
+}): JSX.Element {
+  const cell = useRef<HTMLButtonElement>(null)
+  const [visible, setVisible] = useState(false)
+  useEffect(() => {
+    const el = cell.current
+    if (!el) return
+    const observer = new IntersectionObserver(([entry]) => setVisible(entry.isIntersecting), { root: root.current, rootMargin: '80px' })
+    observer.observe(el)
+    return () => observer.disconnect()
+  }, [root])
+  const ratio = gif.width && gif.height ? `${gif.width} / ${gif.height}` : '4 / 3'
+  return (
+    <button ref={cell} type="button" className="gif-cell" title={gif.title} style={{ aspectRatio: ratio }} onClick={() => onPick(gif)}>
+      {visible ? (
+        <video src={media(gif.src)} poster={gif.preview ? media(gif.preview) : undefined} autoPlay loop muted playsInline />
+      ) : gif.preview ? (
+        <img src={media(gif.preview)} alt="" draggable={false} />
+      ) : null}
+    </button>
+  )
+}
@@ -433,11 +433,22 @@ export function MediaEmbed({
            className="media-embed"
            style={ratio}
            src={media(fullSrc)}
-            controls
+            // A GIF is silent, runs on its own and goes round, and has no
+            // player to operate: it plays when it is shown if autoplay is on,
+            // and otherwise while the pointer is over it. Any other video is a
+            // video, with its controls.
+            {...(attachment?.gif
+              ? {
+                  muted: true,
+                  autoPlay: autoplay,
+                  loop: true,
+                  onMouseEnter: (e: React.MouseEvent<HTMLVideoElement>) => !autoplay && void e.currentTarget.play().catch(() => {}),
+                  onMouseLeave: (e: React.MouseEvent<HTMLVideoElement>) => !autoplay && e.currentTarget.pause()
+                }
+              : { controls: true, loop })}
            // Enough to draw the first frame and know how long it is, without
            // pulling megabytes for every video in a scrolled-past backlog.
            preload="metadata"
-            loop={loop}
            playsInline
            onError={() => setFailed(true)}
          />
@@ -52,6 +52,9 @@ const REANCHOR_THRESHOLD = 100
 */
 const SCROLL_JITTER = 2

+/** How far down from the top edge to look for the row being read, nearest first. */
+const PLACE_PROBES = [1, 24, 48, 80, 120, 180]
+
 /**
 * How long after the reader last touched the list a scroll still counts as
 * theirs.
@@ -363,17 +366,29 @@ export function MessageList(): JSX.Element {
   *
   * By hit test rather than by walking the rows: this runs on every scroll,
   * and a list of two thousand is not a thing to scan that often.
+   *
+   * Every element under the point, not the topmost one, and a few points down
+   * the page rather than one. The "N new messages since" bar is laid over the
+   * top of the log, so asking what was at the edge was answered with the bar
+   * for as long as it was up - and the place stopped being kept, which the
+   * next thing to change size then put the view back to. A date line or the
+   * gap between two groups at the edge gave the same non-answer for a moment.
   */
  const notePlace = useCallback(() => {
    const el = scrollRef.current
    if (!el) return
    const box = el.getBoundingClientRect()
-    const hit = document.elementFromPoint(box.left + 8, box.top + 1)
-    const row = hit?.closest?.('[data-msg-id]') as HTMLElement | null
-    if (!row) return
-    placeRef.current = {
-      id: row.dataset.msgId ?? '',
-      offset: row.getBoundingClientRect().top - box.top
+    for (const down of PLACE_PROBES) {
+      for (const hit of document.elementsFromPoint(box.left + 8, box.top + down)) {
+        if (!el.contains(hit)) continue
+        const row = hit.closest?.('[data-msg-id]') as HTMLElement | null
+        if (!row) continue
+        placeRef.current = {
+          id: row.dataset.msgId ?? '',
+          offset: row.getBoundingClientRect().top - box.top
+        }
+        return
+      }
    }
  }, [])

@@ -17,6 +17,7 @@ import { useSniffedTypes, sniffUrl } from '../lib/sniff'
 import { useMediaUrl, useStrictRoute } from '../lib/route'
 import type { ChatMessage } from '../state/store'
 import type {
+  Attachment,
  CustomEmoji,
  MessageBadge,
  MessageComponent,
@@ -418,7 +419,24 @@ function MessageRowBody({
   */
  const own = bubbles && !isSystem && !!message.isOwn

-  const attachments = message.attachments ?? []
+  // A GIF that was linked is a picture to play, and goes where pictures go:
+  // the same sizing, the same autoplay and loop settings, the same viewer.
+  const gifs = useMemo(
+    () =>
+      (message.embeds ?? [])
+        .filter((e) => e.kind === 'gif' && e.mediaUrl)
+        .map((e): Attachment => ({
+          // As the daemon said; by the ending only for one that did not.
+          kind: e.mediaKind ?? (/\.(mp4|webm|mov|mkv|ogv)(\?|$)/i.test(e.mediaUrl!) ? 'video' : 'image'),
+          gif: true,
+          url: e.mediaUrl,
+          width: e.width,
+          height: e.height,
+          filename: 'gif'
+        })),
+    [message.embeds]
+  )
+  const attachments = useMemo(() => [...(message.attachments ?? []), ...gifs], [message.attachments, gifs])
  // The ones that go in a grid, and the ones that stay in the row, each with
  // its place in the message so its key stays the same whichever it is.
  const indexed = attachments.map((att, i) => ({ att, i }))
@@ -448,7 +466,12 @@ function MessageRowBody({
    const codeBlocks = extractCodeBlocks(normalized)
    const quoteBlocks = extractQuoteBlocks(stripCodeBlocks(normalized))

-    let body = stripEmbeddedUrls(normalized, media)
+    // The page a GIF was linked from is not shown as well as the GIF: it is the
+    // same thing said twice, and is how a posted GIF read as an address.
+    const gifPages = (message.embeds ?? [])
+      .filter((e) => e.kind === 'gif' && e.url)
+      .map((e) => ({ url: e.url!, kind: 'image' as const }))
+    let body = stripEmbeddedUrls(normalized, [...media, ...gifPages])
    body = stripCodeBlocks(body)
    body = stripQuoteBlocks(body)

@@ -1077,7 +1100,8 @@ function MessageRowBody({
            </pre>
          ))}

-          {(message.embeds || []).map((embed, i) => (
+          {(message.embeds || []).map((embed, i) =>
+            embed.kind === 'gif' ? null : (
            <div
              key={`e${i}`}
              className={classes('rich-embed selectable', embed.kind === 'notice' && 'notice')}
@@ -1170,7 +1194,8 @@ function MessageRowBody({
                </div>
              )}
            </div>
-          ))}
+            )
+          )}

          {/* Pictures and videos that came together are laid out together:
              two side by side, three with the first tall, four in a square,
@@ -2,7 +2,8 @@ import { useEffect, useMemo, useRef, useState } from 'react'
 import { createPortal } from 'react-dom'
 import { Avatar } from './Avatar'
 import { Icon } from './Icon'
-import { useChat, useStore } from '../state/hooks'
+import { useChat, useIdSetPref, usePref, useStore } from '../state/hooks'
+import { isMutedBuffer, waitingCount } from '../lib/groups'
 import { rankBuffers, whereText } from '../lib/switcher'
 import { bufferKindGlyph, classes } from '../lib/util'

@@ -18,6 +19,8 @@ export function QuickSwitcher(): JSX.Element | null {
  const store = useStore()
  const buffers = useChat((s) => s.buffers)
  const accounts = useChat((s) => s.accounts)
+  const [muted] = useIdSetPref('mutedBuffers')
+  const [mutedGroups] = usePref<string[]>('mutedGroups', [])
  const [open, setOpen] = useState(false)
  const [query, setQuery] = useState('')
  const [index, setIndex] = useState(0)
@@ -103,6 +106,7 @@ export function QuickSwitcher(): JSX.Element | null {
          {hits.length === 0 && <div className="switcher-empty muted">Nothing by that name.</div>}
          {hits.map((hit, i) => {
            const b = hit.buffer
+            const waiting = waitingCount(b, isMutedBuffer(b, muted, mutedGroups))
            return (
              <button
                key={b.id}
@@ -122,9 +126,9 @@ export function QuickSwitcher(): JSX.Element | null {
                </span>
                <span className="switcher-title ellipsis">{hit.title}</span>
                <span className="switcher-where muted small ellipsis">{hit.where}</span>
-                {b.unread > 0 && (
+                {waiting > 0 && (
                  <span className={classes('unread-badge', b.highlight && 'highlight')}>
-                    {b.unread > 99 ? '99+' : b.unread}
+                    {waiting > 99 ? '99+' : waiting}
                  </span>
                )}
              </button>
@@ -28,7 +28,8 @@ import {
  reorderFolder,
  FOLDER_DRAG_PREFIX,
  visibleGroups,
-  countsTowardRail,
+  countedFor,
+  isMutedBuffer,
  dmGroup,
  DM_GROUP_ID,
  isDirectMessage,
@@ -424,24 +425,27 @@ export function ServerRail(): JSX.Element | null {
  // Unread rolls up from the buffers under each entry, so a guild whose
  // channels are all collapsed away still shows it has something waiting.
  const totals = new Map<string, { unread: number; highlight: boolean; mentions: number }>()
-  // `direct` is a page of conversations addressed to you, where every unread
-  // message is one that is for you and so counts as a mention.
-  const bump = (key: string, b: BufferEntry, direct = false): void => {
+  // A direct message counts for every unread message in it - all of them are
+  // for you - and anywhere else for its mentions (see countedFor).
+  const bump = (key: string, b: BufferEntry): void => {
+    const waiting = countedFor(b, muted, hidden, mutedGroups)
+    // What a muted conversation says is only that your name was used in it:
+    // its unread messages are not asking for anything.
+    const quiet = isMutedBuffer(b, muted, mutedGroups)
    const t = totals.get(key) || { unread: 0, highlight: false, mentions: 0 }
-    t.unread += b.unread
-    t.highlight = t.highlight || b.highlight
-    t.mentions += direct ? b.unread : b.mentions
+    t.unread += quiet ? 0 : b.unread
+    t.highlight = t.highlight || (quiet ? waiting > 0 : b.highlight)
+    t.mentions += waiting
    totals.set(key, t)
  }
  const all = buffers as BufferEntry[]
  for (const b of all) {
-    // Only what the pane below would show: a hidden buffer has no row to
-    // reach, and a muted one is not asking for attention.
-    if (!countsTowardRail(b, muted, hidden, mutedGroups)) continue
+    // A hidden buffer has no row to reach.
+    if (hidden.includes(b.id)) continue
    // A buffer can count on more than one tile: where it lives, and on any
    // aggregate page that also lists it. Both are places the user would look.
    if (b.groupId) bump(b.groupId, b)
-    if (isDirectMessage(b)) bump(DM_GROUP_ID, b, true)
+    if (isDirectMessage(b)) bump(DM_GROUP_ID, b)
    if (pinned.includes(b.id)) bump(PINNED_GROUP_ID, b)
  }

@@ -527,7 +531,7 @@ export function ServerRail(): JSX.Element | null {
   */
  const unreadDms = all
    .filter(
-      (b) => isDirectMessage(b) && b.unread > 0 && countsTowardRail(b, muted, hidden, mutedGroups)
+      (b) => isDirectMessage(b) && countedFor(b, muted, hidden, mutedGroups) > 0
    )
    .sort((a, b) => (b.lastActivityTs || 0) - (a.lastActivityTs || 0))

@@ -35,8 +35,9 @@ export function effectiveStatus(account: Account): Status | 'connecting' {
  return (account.status as Status) || 'online'
 }

-function label(status: Status | 'connecting', service: string): string {
+function label(status: Status | 'connecting', service: string, auto = false): string {
  if (status === 'connecting') return 'Connecting…'
+  if (status === 'idle' && auto) return 'Idle (away)'
  return status === 'invisible' ? statusName(service, 'invisible') : presenceLabel(status)
 }

@@ -73,12 +74,12 @@ export function UserFooter({ account }: { account?: Account }): JSX.Element {
          aria-haspopup="menu"
          aria-expanded={open}
          onClick={() => setOpen(!open)}
-          title={detail ? `${name} — ${label(status, account.service)}\n${detail}` : `${name} — ${label(status, account.service)}`}
+          title={detail ? `${name} — ${label(status, account.service, account.autoIdle)}\n${detail}` : `${name} — ${label(status, account.service, account.autoIdle)}`}
        >
          <Avatar name={name} url={account.avatarUrl} size={28} status={status} accountId={account.id} />
          <span className="user-identity">
            <span className="ellipsis user-name">{name}</span>
-            <span className="ellipsis small muted">{watching ? 'Watching, signed out' : label(status, account.service)}</span>
+            <span className="ellipsis small muted">{watching ? 'Watching, signed out' : label(status, account.service, account.autoIdle)}</span>
          </span>
        </button>

@@ -119,7 +120,7 @@ export function UserFooter({ account }: { account?: Account }): JSX.Element {
      </div>

      {open && (
-        <StatusPopout account={account} status={status} anchor={identity.current} onClose={() => setOpen(false)} />
+        <StatusPopout account={account} status={account.autoIdle ? 'online' : status} anchor={identity.current} onClose={() => setOpen(false)} />
      )}
    </>
  )
@@ -855,6 +855,27 @@ function GeneralSettings(): JSX.Element {
        <GlobalHighlightKeywords />
      </SettingsSection>

+      <SettingsSection title="Presence">
+        <ToggleSetting
+          settingKey="presence.autoIdle"
+          label="Go idle when I step away"
+          description="Shows you as Idle on Discord and IRC after a while with nothing touched, and back to Online when you return. Only while your status is Online: Idle, Do not disturb and Invisible stay where you put them until you set Online again. Not while you are in a call. moho looks only at how long it has been since the keyboard or mouse was used - never at what you do. Where the system will not say (some Wayland desktops), it goes by your use of moho's own windows."
+          defaultValue={true}
+        />
+        <SelectionSetting
+          settingKey="presence.autoIdleMinutes"
+          label="Idle after"
+          defaultValue="10"
+          options={[
+            { label: '5 min', value: '5' },
+            { label: '10 min', value: '10' },
+            { label: '15 min', value: '15' },
+            { label: '30 min', value: '30' },
+            { label: '1 hour', value: '60' }
+          ]}
+        />
+      </SettingsSection>
+
      <SettingsSection title="Updates">
        <ToggleSetting
          settingKey="updates.notify"
@@ -9,6 +9,8 @@ import {
  extractMedia,
  extractQuoteBlocks,
  formatMessage,
+  isForumUpload,
+  isGifPage,
  hostnameOf,
  ircFormat,
  normalizeBBCode,
@@ -253,3 +255,55 @@ describe('blocks', () => {
    expect(embedColor(undefined)).toBeUndefined()
  })
 })
+
+describe('links to the pages GIFs are shared from', () => {
+  it('knows Tenor, Giphy and Klipy pages when it sees one', () => {
+    for (const url of [
+      'https://tenor.com/view/cat-gif-22954713',
+      'https://tenor.com/de/view/cat-gif-22954713',
+      'https://giphy.com/gifs/cat-Z7wFi5b2VEAr6',
+      'https://giphy.com/embed/Z7wFi5b2VEAr6',
+      'https://klipy.com/gifs/friends-joey-53',
+      'https://klipy.com/clips/angry-8'
+    ]) {
+      expect(isGifPage(url), url).toBe(true)
+    }
+    expect(isGifPage('https://tenor.com/')).toBe(false)
+    expect(isGifPage('https://example.com/view/cat')).toBe(false)
+  })
+
+  it('does not ask a page what it is, which is a request to a third party for nothing', () => {
+    const asked: string[] = []
+    const media = extractMedia('look https://tenor.com/view/cat-gif-1 and https://klipy.com/gifs/x-1', {
+      contentSniffing: true,
+      onNeedSniff: (url) => asked.push(url)
+    })
+    expect(media).toEqual([])
+    expect(asked).toEqual([])
+  })
+
+  it('still draws a direct file from those hosts, like any other', () => {
+    const media = extractMedia('https://media.tenor.com/abc/cat.mp4 https://media.giphy.com/media/Z7wFi5b2VEAr6/giphy.gif', {})
+    expect(media.map((m) => m.kind)).toEqual(['video', 'image'])
+  })
+})
+
+describe('the forum\'s own files', () => {
+  const picture = 'https://uploads.kiwifarms.st/data/attachments/9671/9671535-a2e5ae0d55aadd338162770b3fa79f97-alt.avif?hash=-d_TarFo41'
+
+  it('are known by where they are', () => {
+    expect(isForumUpload(picture)).toBe(true)
+    expect(isForumUpload('https://kiwifarms.st/data/video/9667/9667943-abc.mp4?hash=x')).toBe(true)
+    expect(isForumUpload('https://kiwifarms.st/threads/a-thread.123/')).toBe(false)
+    expect(isForumUpload('https://example.com/data/attachments/1/2-a.avif')).toBe(false)
+  })
+
+  it('are not loaded by the window, which would ask for them from the reader\'s own address', () => {
+    expect(extractMedia(`[img]${picture}[/img]`, {})).toEqual([])
+    expect(extractMedia(`look ${picture}`, { contentSniffing: true, onNeedSniff: () => { throw new Error('asked') } })).toEqual([])
+  })
+
+  it('leave other pictures and an AVIF anywhere else as they were', () => {
+    expect(extractMedia('https://i.ibb.co/JRkN8BFv/photo.avif', {}).map((m) => m.kind)).toEqual(['image'])
+  })
+})
@@ -583,6 +583,43 @@ export const OPAQUE_IMAGE_HOSTS = ['i.ddos.lgbt']
 const IMAGE_EXT_RE = /\.(png|jpe?g|gif|webp|bmp|avif)(\?\S*)?$/i
 const VIDEO_EXT_RE = /\.(mp4|webm|mov|mkv|ogv)(\?\S*)?$/i

+/**
+ * A page of one of the sites GIFs are shared from - Tenor, Giphy, Klipy.
+ *
+ * Not a picture, whatever it shows: a page. What it shows reaches the message
+ * as an embed, from Discord or from the daemon having read the page, so this
+ * need not be asked what it is - which, for a probe, is a request to a third
+ * party the moment a message arrives, and for Klipy one it answers with a
+ * challenge.
+ */
+const GIF_PAGE_RE = /^https?:\/\/(?:www\.)?(?:tenor\.com\/(?:[a-z]{2}(?:-[A-Za-z]{2})?\/)?view\/|giphy\.com\/(?:gifs|embed)\/|klipy\.com\/(?:gifs?|clips?|stickers?|memes?)\/)/i
+
+/**
+ * One of the forum's own files: what its uploads host serves, a picture or a
+ * video.
+ *
+ * Not loaded by the window. The daemon fetches these through the account's own
+ * route and puts the file on the message, which is what draws; left to the
+ * window they would be asked for from the reader's own address - which the host
+ * turns away, and which for somebody on Tor is the leak routing is for. Between
+ * the message arriving and the file being kept the link is simply a link, and if
+ * it cannot be kept it stays one.
+ *
+ * The onion address is here as the clearnet one because the text has been
+ * through `clearnetLinks` by the time it reaches this.
+ */
+const FORUM_UPLOAD_RE = /^https?:\/\/(?:uploads\.|www\.)?kiwifarms\.st\/data\/(?:attachments|video)\//i
+
+/** Whether this is a link to one of the forum's own files. */
+export function isForumUpload(url: string): boolean {
+  return FORUM_UPLOAD_RE.test(url)
+}
+
+/** Whether this is a link to a GIF's page on one of those sites. */
+export function isGifPage(url: string): boolean {
+  return GIF_PAGE_RE.test(url)
+}
+
 /**
 * What a thumbnail was linked to, told apart by what it is.
 *
@@ -652,7 +689,7 @@ export function extractMedia(
    const url = raw.replace(/[),.;!?]+$/, '')
    const yt = youtubeId(url)
    const identity = yt ? `yt:${yt}` : url
-    if (seen.has(identity) || targets.has(url)) continue
+    if (seen.has(identity) || targets.has(url) || isForumUpload(url)) continue

    if (yt) {
      seen.add(identity)
@@ -666,6 +703,9 @@ export function extractMedia(
    } else if (OPAQUE_IMAGE_HOSTS.includes(hostnameOf(url))) {
      seen.add(identity)
      result.push({ url, kind: 'image', ...biggerCopy(url, opts.thumbnails) })
+    } else if (isGifPage(url)) {
+      // A page, not a file: see GIF_PAGE_RE. Left as the link it is.
+      continue
    } else if (opts.contentSniffing && /^https?:\/\//i.test(url)) {
      // Nothing else could classify this. Not for file:// URLs: those are
      // always nobilis's own already-classified attachment paths.
@@ -2,7 +2,7 @@ import { describe, expect, it } from 'vitest'
 import type { BufferEntry } from '../state/store'
 import {
  compareInBand,
-  countsTowardRail,
+  countedFor,
  fileInFolder,
  foldTogether,
  orderedGroups,
@@ -10,6 +10,7 @@ import {
  removeFromFolders,
  reorder,
  reorderFolder,
+  waitingCount,
  type RailFolder,
  type RailGroup
 } from './groups'
@@ -83,24 +84,21 @@ describe('what a muted place still says', () => {
  const buf = (extra: Partial<BufferEntry>): BufferEntry =>
    ({ id: 'a|#x', accountId: 'a', kind: 'channel', name: '#x', lastActivityTs: 0, groupId: 'g', unread: 3, highlight: false, mentions: 0, ...extra }) as BufferEntry

-  it('counts a muted channel for nothing', () => {
-    expect(countsTowardRail(buf({}), ['a|#x'], [])).toBe(false)
-    expect(countsTowardRail(buf({}), [], [], ['g'])).toBe(false)
+  it('counts a muted channel by its mentions, since muting is not hiding that you were asked for', () => {
+    expect(countedFor(buf({ highlight: true, mentions: 2 }), ['a|#x'], [])).toBe(2)
+    expect(countedFor(buf({ highlight: true, mentions: 2 }), [], [], ['g'])).toBe(2)
+    expect(countedFor(buf({ highlight: true, mentions: 2, serverMuted: true }), [], [])).toBe(2)
+    // Everything else said in it is not counted whether muted or not.
+    expect(countedFor(buf({ unread: 97 }), ['a|#x'], [])).toBe(0)
  })

-  it('counts it for nothing even once somebody has used your name', () => {
-    expect(countsTowardRail(buf({ highlight: true, mentions: 2 }), ['a|#x'], [])).toBe(false)
-    expect(countsTowardRail(buf({ highlight: true, mentions: 2 }), [], [], ['g'])).toBe(false)
-    // A mute made on the account itself is the same.
-    expect(countsTowardRail(buf({ highlight: true, mentions: 2, serverMuted: true }), [], [])).toBe(false)
-  })
-
-  it('counts what is not muted', () => {
-    expect(countsTowardRail(buf({ highlight: true, mentions: 2 }), [], [])).toBe(true)
+  it('counts a muted direct message for nothing - it has no mentions, only messages', () => {
+    expect(countedFor(buf({ kind: 'dm', unread: 5 }), [], [])).toBe(5)
+    expect(countedFor(buf({ kind: 'dm', unread: 5 }), ['a|#x'], [])).toBe(0)
  })

  it('never counts what has no row to click through to', () => {
-    expect(countsTowardRail(buf({ highlight: true }), [], ['a|#x'])).toBe(false)
+    expect(countedFor(buf({ highlight: true, mentions: 3 }), [], ['a|#x'])).toBe(0)
  })
 })

@@ -124,3 +122,15 @@ describe('compareInBand', () => {
    expect([dm('old', 1), dm('new', 9)].sort(compareInBand).map((c) => c.name)).toEqual(['new', 'old'])
  })
 })
+
+describe('waitingCount', () => {
+  const buffer = (over: Partial<BufferEntry>): BufferEntry =>
+    ({ id: 'a|#x', kind: 'channel', unread: 97, mentions: 0, highlight: false, ...over }) as BufferEntry
+  it('is the mentions in a channel, not everything said in it', () => {
+    expect(waitingCount(buffer({}))).toBe(0)
+    expect(waitingCount(buffer({ mentions: 2, highlight: true }))).toBe(2)
+  })
+  it('is each unread message in a direct message, which are all for you', () => {
+    expect(waitingCount(buffer({ kind: 'dm', unread: 4 }))).toBe(4)
+  })
+})
@@ -95,6 +95,24 @@ export function isDirectMessage(buffer: BufferEntry): boolean {
  return buffer.kind === 'dm'
 }

+/**
+ * The number to show beside a conversation: what is addressed to you.
+ *
+ * Mentions, not everything said - a bold name already says there is activity,
+ * and a count of it is the noise the rail and tray were rid of. A direct
+ * message is the exception that is the same rule: every line in one is
+ * addressed to you, so it is counted by each unread message - unless it is
+ * muted, which is asking not to hear about it at all.
+ *
+ * A muted channel still counts the times your name was used in it. Muting is
+ * about being interrupted - a popup, a sound, a phone buzzing - not about
+ * hiding that you were asked for; Discord and Element both keep that badge.
+ */
+export function waitingCount(buffer: BufferEntry, muted = false): number {
+  if (isDirectMessage(buffer)) return muted ? 0 : buffer.unread
+  return buffer.mentions
+}
+
 export function pinnedGroup(): RailGroup {
  return {
    id: PINNED_GROUP_ID,
@@ -261,19 +279,24 @@ export function isMutedBuffer(
 }

 /**
- * The buffers whose unread should reach a rail tile: what the pane below it
- * would actually list. A hidden buffer has no row to click through to, and a
- * muted one is muted - it does not count, mentions included. Muting a place is
- * the one way to say "not now", and a tile that goes on counting what was
- * muted says the setting does nothing.
+ * What a conversation adds to a rail tile or the tray: its waiting count, or
+ * nothing at all if it is hidden, which has no row to click through to.
+ *
+ * Muting does not remove it. A muted place is not interrupting anybody - no
+ * popup, no sound, no buzz on a phone - but the times it asked for you are
+ * still true, and a tile that hid them would send you looking in the wrong
+ * place. What a mute does take away is a direct message's count, since that
+ * is everything said in it rather than anything that was meant for you in
+ * particular.
 */
-export function countsTowardRail(
+export function countedFor(
  buffer: BufferEntry,
  muted: string[],
  hidden: string[],
  mutedGroups: string[] = []
-): boolean {
-  return !hidden.includes(buffer.id) && !isMutedBuffer(buffer, muted, mutedGroups)
+): number {
+  if (hidden.includes(buffer.id)) return 0
+  return waitingCount(buffer, isMutedBuffer(buffer, muted, mutedGroups))
 }


@@ -0,0 +1,45 @@
+import { describe, expect, it } from 'vitest'
+import { trayCount } from './traycount'
+import type { BufferEntry } from '../state/store'
+
+const buf = (over: Partial<BufferEntry>): BufferEntry =>
+  ({ id: 'a|#x', accountId: 'a', kind: 'channel', name: '#x', lastActivityTs: 0, groupId: 'g', unread: 0, highlight: false, mentions: 0, ...over }) as BufferEntry
+
+describe('the number on the tray', () => {
+  it('is nothing when nothing is waiting', () => {
+    expect(trayCount([buf({}), buf({ id: 'a|#y', unread: 40 })], [], [], [])).toEqual({ dms: 0, mentions: 0, latest: null })
+  })
+
+  it('counts a channel by its mentions and not by its messages', () => {
+    expect(trayCount([buf({ unread: 33, mentions: 2, highlight: true })], [], [], [])).toEqual({ dms: 0, mentions: 2, latest: 'a|#x' })
+  })
+
+  it('counts a direct message by each unread message in it', () => {
+    expect(trayCount([buf({ id: 'a|bob', kind: 'dm', unread: 3 })], [], [], [])).toEqual({ dms: 3, mentions: 0, latest: 'a|bob' })
+  })
+
+  it('does not count what is hidden', () => {
+    expect(trayCount([buf({ id: 'a|#h', mentions: 5 })], [], ['a|#h'], [])).toEqual({ dms: 0, mentions: 0, latest: null })
+  })
+
+  it('counts the mentions in what is muted, and nothing else there', () => {
+    const rows = [buf({ id: 'a|#m', mentions: 4, unread: 90 }), buf({ id: 'a|gm', mentions: 6, groupId: 'muted-group' })]
+    expect(trayCount(rows, ['a|#m'], [], ['muted-group'])).toEqual({ dms: 0, mentions: 10, latest: 'a|#m' })
+    expect(trayCount([buf({ mentions: 2, serverMuted: true })], [], [], [])).toMatchObject({ mentions: 2 })
+    expect(trayCount([buf({ unread: 50, serverMuted: true })], [], [], [])).toMatchObject({ mentions: 0 })
+  })
+
+  it('counts a muted direct message for nothing', () => {
+    expect(trayCount([buf({ id: 'a|bob', kind: 'dm', unread: 3 })], ['a|bob'], [], [])).toEqual({ dms: 0, mentions: 0, latest: null })
+  })
+
+  it('names the most recently active conversation that has something, for the tray to open', () => {
+    const rows = [buf({ id: 'a|old', mentions: 1, lastActivityTs: 10 }), buf({ id: 'a|new', mentions: 1, lastActivityTs: 20 }), buf({ id: 'a|quiet', lastActivityTs: 99 })]
+    expect(trayCount(rows, [], [], []).latest).toBe('a|new')
+  })
+
+  it('adds the two kinds together and keeps them apart', () => {
+    const rows = [buf({ id: 'a|bob', kind: 'dm', unread: 2 }), buf({ mentions: 3 })]
+    expect(trayCount(rows, [], [], [])).toMatchObject({ dms: 2, mentions: 3 })
+  })
+})
@@ -0,0 +1,41 @@
+import { countedFor, isDirectMessage } from './groups'
+import type { BufferEntry } from '../state/store'
+
+/** What the tray is told is waiting. */
+export interface TrayCount {
+  /** Unread direct messages, counted by the message. */
+  dms: number
+  /** Mentions in everywhere that is not a direct message, counted by the mention. */
+  mentions: number
+  /** The conversation to open from the tray: the most recently active one with something counted. */
+  latest: string | null
+}
+
+/**
+ * The number on the tray, worked out the way the rail's is.
+ *
+ * The tray used to keep a count of its own in the main process, from the
+ * notifications it was sent and a handful of "this was read" messages, and the
+ * two drifted: a read on another device cleared the window and not the tray, a
+ * mention in the conversation already open raised the tray and was never
+ * counted by the window, and a room muted afterwards stayed in the tray's
+ * number. It also counted conversations where the rail counts messages.
+ *
+ * So the window - which already knows every one of those things, because it is
+ * what draws them - says what is waiting, by the same rule as the rail: a
+ * muted or hidden conversation does not count, a direct message counts for each
+ * unread message in it, and anywhere else counts for its mentions.
+ */
+export function trayCount(buffers: BufferEntry[], muted: string[], hidden: string[], mutedGroups: string[]): TrayCount {
+  let dms = 0
+  let mentions = 0
+  let latest: BufferEntry | null = null
+  for (const b of buffers) {
+    const waiting = countedFor(b, muted, hidden, mutedGroups)
+    if (waiting <= 0) continue
+    if (isDirectMessage(b)) dms += waiting
+    else mentions += waiting
+    if (!latest || b.lastActivityTs > latest.lastActivityTs) latest = b
+  }
+  return { dms, mentions, latest: latest?.id ?? null }
+}
@@ -1202,15 +1202,17 @@ export class ChatStore {
  private reportTrayStatus(): void {
    const statuses: Record<string, string> = {}
    const connected = this.state.accounts.filter((a) => a.state === 'connected')
-    for (const a of connected) if (a.status) statuses[a.id] = a.status
+    // What was chosen, not what is shown: an account idle because its person is
+    // away is still online as far as the menu and the notifier are concerned.
+    for (const a of connected) if (a.status) statuses[a.id] = a.autoIdle ? 'online' : a.status
    const offered = ALL_STATUSES.filter((s) => connected.some((a) => supportsStatus(a.service, s)))
    const widest = [...connected].sort((a, b) => statusesFor(b.service).length - statusesFor(a.service).length)[0]
    // Invisible is what Discord calls it; where only Matrix has it, it is offline.
    const invisibleName = connected.some((a) => supportsStatus(a.service, 'invisible') && a.service !== 'matrix') ? 'Invisible' : 'Offline'
-    const report = JSON.stringify([statuses, offered, widest?.status ?? null, invisibleName])
+    const report = JSON.stringify([statuses, offered, (widest?.autoIdle ? 'online' : widest?.status) ?? null, invisibleName])
    if (report === this.lastTrayReport) return
    this.lastTrayReport = report
-    window.moho.setAccountStatuses(statuses, offered, widest?.status ?? null, invisibleName)
+    window.moho.setAccountStatuses(statuses, offered, (widest?.autoIdle ? 'online' : widest?.status) ?? null, invisibleName)
  }

  // --- lifecycle ------------------------------------------------------
@@ -3511,6 +3513,13 @@ export class ChatStore {
        break
      }

+      // Accounts shown as idle because their person stepped away, or back as
+      // online because they returned: nothing they chose changed, so the list
+      // is read again rather than patched.
+      case 'accountStatus':
+        void this.refreshAccounts()
+        break
+
      case 'presenceChange':
        this.set({
          presenceByBuffer: { ...this.state.presenceByBuffer, [data.bufferId]: data.members }
@@ -56,7 +56,11 @@ export const IPC = {
  /** main -> window: something from the tray menu that the window carries out. */
  trayCommand: 'moho:tray:command',
  /** window -> main: the status each connected account is at. */
-  trayStatus: 'moho:tray:status'
+  trayStatus: 'moho:tray:status',
+  /** window -> main: what is waiting, for the number on the tray. */
+  trayUnread: 'moho:tray:unread',
+  /** window -> main: something was used in this window, so the person is here. */
+  activity: 'moho:activity'
 } as const

 /**
@@ -12,6 +12,11 @@ export interface Account {
  status?: string
  /** What it says beside the status, where the service has a place for that. */
  statusText?: string
+  /**
+   * Shown as idle because the person stepped away, not because they chose it:
+   * `status` then reads idle while what they chose is online.
+   */
+  autoIdle?: boolean
  state: string
  autojoin: string
  hasNickservPassword: boolean
@@ -472,8 +477,18 @@ export interface Embed {
  footer?: string
  /** A button along the bottom of the card. With no address it is drawn and goes nowhere. */
  cta?: { label: string; url?: string }
-  /** "notice" for the platform's own notices to an account. */
+  /**
+   * "notice" for the platform's own notices to an account; "gif" for a moving
+   * picture that was linked, drawn as the picture and not as a card.
+   */
  kind?: string
+  /** For a "gif": the video or image to play as it stands, which is not the page that was linked. */
+  mediaUrl?: string
+  /** Whether `mediaUrl` is a video or a picture, as the daemon knows it. */
+  mediaKind?: 'video' | 'image'
+  /** Its size, so the row is laid out before it has loaded. */
+  width?: number
+  height?: number
  /** A glyph for the heading. */
  icon?: string
 }
@@ -511,6 +526,11 @@ export interface Attachment {
   * flag, not a guess from the mimetype.
   */
  voice?: boolean
+  /**
+   * A GIF that was linked, to be played like one - silent, looping, without a
+   * player's controls. Only ever set by the window itself, from an embed.
+   */
+  gif?: boolean
 }

 export interface Message {