source: Klonkt/src/views/pages/prutter-conversation.ejs@ 3b6e04a

<div class="prutter-conv-page" data-conversation-id="<%= conversation.id %>" data-me="<%= user.id %>">
  <header class="prutter-conv-header">
    <a class="prutter-back" href="<%= siteUrlBase %>/prutter" aria-label="Terug naar inbox" title="Inbox">
      <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><line x1="19" y1="12" x2="5" y2="12"/><polyline points="12 19 5 12 12 5"/></svg>
    </a>
    <div class="prutter-conv-avatar">
      <% if (other && other.avatar_url) { %>
        <img src="<%= other.avatar_url %>" alt="">
      <% } else { %>
        <span><%= (other && other.username || '?').charAt(0).toUpperCase() %></span>
      <% } %>
    </div>
    <div class="prutter-conv-id">
      <span class="prutter-conv-name"><%= other ? other.username : 'Onbekend' %></span>
      <% if (other) { %>
        <a class="prutter-conv-sub" href="/users/<%= encodeURIComponent(other.username) %>">Bekijk profiel</a>
      <% } %>
    </div>
  </header>

  <ol class="prutter-thread" id="prutter-thread">
    <% messages.forEach(function(m) { %>
      <li class="prutter-msg <%= m.author_id === user.id ? 'prutter-msg--mine' : 'prutter-msg--theirs' %>" data-msg-id="<%= m.id %>">
        <div class="prutter-msg-bubble"><%= m.content %></div>
        <div class="prutter-msg-time" title="<%= m.created_at %>"><%= formatDateTime(m.created_at) %></div>
      </li>
    <% }); %>
  </ol>

  <form class="prutter-composer" id="prutter-composer"
        method="post"
        action="<%= siteUrlBase %>/prutter/<%= conversation.id %>/send"
        hx-post="<%= siteUrlBase %>/prutter/<%= conversation.id %>/send"
        hx-target="#prutter-thread"
        hx-swap="beforeend">
    <textarea name="content" rows="1" maxlength="2000" placeholder="Bericht…" required></textarea>
    <button type="submit" class="btn btn-primary">Stuur</button>
  </form>
</div>

<script>
(function() {
  // Auto-scroll to bottom on load and after appends.
  var thread = document.getElementById('prutter-thread');
  function scrollToBottom() { thread.scrollTop = thread.scrollHeight; }
  scrollToBottom();
  window.__prutterScroll = scrollToBottom;

  // Live updates via WebSocket.
  // Browser auto-resolves protocol/host; same origin as the page.
  try {
    var page = document.querySelector('.prutter-conv-page');
    var convId = page.dataset.conversationId;
    var me = page.dataset.me;
    var proto = location.protocol === 'https:' ? 'wss:' : 'ws:';
    var ws = new WebSocket(proto + '//' + location.host + '/ws/prutter');

    ws.addEventListener('message', function(ev) {
      try {
        var data = JSON.parse(ev.data);
        if (data.type !== 'new_message' || data.conversationId !== convId) return;
        var m = data.message;
        // Don't double-render our own messages (already added via HTMX response)
        if (m.author_id === me) return;

        var li = document.createElement('li');
        li.className = 'prutter-msg prutter-msg--theirs';
        li.dataset.msgId = m.id;
        var bubble = document.createElement('div');
        bubble.className = 'prutter-msg-bubble';
        bubble.textContent = m.content;  // text content = automatic escaping
        var time = document.createElement('div');
        time.className = 'prutter-msg-time';
        time.textContent = new Date(m.created_at).toLocaleString();
        li.appendChild(bubble);
        li.appendChild(time);
        thread.appendChild(li);
        scrollToBottom();
      } catch (e) { /* ignore malformed */ }
    });
  } catch (e) {
    console.warn('Prutter WS unavailable:', e);
  }

  // ── Composer: invoer-gedrag + auto-groei + wissen na versturen ──────────
  var form = document.getElementById('prutter-composer');
  var ta = form ? form.querySelector('textarea') : null;
  if (form && ta) {
    var MAXH = function () { return Math.round(window.innerHeight * 0.4); };
    function autoGrow() {
      ta.style.height = 'auto';
      ta.style.height = Math.min(ta.scrollHeight, MAXH()) + 'px';
    }
    function isTouch() {
      return window.matchMedia && window.matchMedia('(pointer: coarse)').matches;
    }
    function submit() {
      if (!ta.value.trim()) return;
      if (form.requestSubmit) form.requestSubmit();
      else form.dispatchEvent(new Event('submit', { bubbles: true, cancelable: true }));
    }

    ta.addEventListener('input', autoGrow);
    ta.addEventListener('keydown', function (e) {
      if (e.key !== 'Enter' || e.isComposing) return;   // IME-invoer met rust laten
      // Touch (mobiel/tablet): Enter = nieuwe regel, versturen via de Stuur-knop.
      if (isTouch()) return;
      // Desktop: Shift+Enter = nieuwe regel, gewone Enter = versturen.
      if (e.shiftKey) return;
      e.preventDefault();
      submit();
    });

    // Wissen + terug naar één regel ná een geslaagde verzending.
    form.addEventListener('htmx:afterRequest', function (e) {
      if (e.detail && e.detail.successful) {
        ta.value = '';
        autoGrow();
        scrollToBottom();
        ta.focus();
      }
    });

    autoGrow();
  }
})();
</script>

<style>
/* De chat is position:fixed (los uit de flow) → de site-footer (met copyright,
   versie én de "Installeer app"-knop) schemerde erdoorheen in het lege
   berichtgebied. In de chat hoort die footer niet thuis: verbergen. */
body:has(.prutter-conv-page) .site-footer { display: none; }

/* ── Full-height chat-layout (mobile-first) ──────────────────────────────
   De pagina is FIXED gepind tussen de topnav (desktop) en de onderste balken
   (bottom-tab + audiospeler), zodat ALLEEN de thread scrollt — niet de hele
   pagina. De offsets volgen de body-classes has-bottom-tab/has-audio-player,
   dus de composer valt nooit achter een balk. */
.prutter-conv-page {
  position: fixed;
  left: 0; right: 0;
  top: 0;                 /* mobiel: masthead is verborgen → vanaf de top */
  bottom: 0;
  max-width: 760px; margin: 0 auto;
  display: flex; flex-direction: column;
  padding: 0.5rem 0.75rem;
  z-index: 1;
}
/* Desktop: de sticky masthead staat erboven → begin eronder. */
@media (min-width: 768px) {
  .prutter-conv-page { top: 64px; padding: 0.75rem 1rem; }
}
/* Onderste vrije ruimte = de balken die de viewport-bodem overlappen. */
@media (max-width: 767px) {
  body.has-bottom-tab .prutter-conv-page { bottom: calc(56px + env(safe-area-inset-bottom, 0)); }
}
body.has-audio-player .prutter-conv-page { bottom: calc(76px + env(safe-area-inset-bottom, 0)); }
@media (max-width: 767px) {
  body.has-bottom-tab.has-audio-player .prutter-conv-page { bottom: calc(56px + 76px + env(safe-area-inset-bottom, 0)); }
}

/* Compacte chat-kop: terug-pijl + avatar + naam op één regel. */
.prutter-conv-header {
  flex: 0 0 auto;
  display: flex; align-items: center; gap: 0.65rem;
  padding-bottom: 0.6rem; margin-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule);
}
.prutter-back {
  flex: 0 0 auto;
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 8px;
  color: var(--ink); text-decoration: none;
}
.prutter-back:hover { color: var(--accent); background: var(--paper-2); }
.prutter-back svg { width: 20px; height: 20px; }
.prutter-conv-avatar {
  flex: 0 0 auto;
  width: 40px; height: 40px; border-radius: 50%;
  overflow: hidden; background: var(--paper-2);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--accent); font-weight: 700;
}
.prutter-conv-avatar img { width: 100%; height: 100%; object-fit: cover; }
.prutter-conv-id { display: flex; flex-direction: column; min-width: 0; line-height: 1.2; }
.prutter-conv-name {
  font-family: var(--font-display, serif); font-size: 1.15rem; color: var(--ink);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.prutter-conv-sub { font-size: 0.78rem; color: var(--ink-muted, var(--ink-soft)); text-decoration: none; }
.prutter-conv-sub:hover { color: var(--accent); }

/* De ENIGE scroller. min-height:0 is cruciaal in een flex-kolom, anders
   groeit de lijst i.p.v. te scrollen. */
.prutter-thread {
  flex: 1 1 auto; min-height: 0;
  list-style: none; margin: 0;
  display: flex; flex-direction: column; gap: 0.4rem;
  padding: 0.25rem 0.1rem 0.5rem;
  overflow-y: auto; overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.prutter-msg { display: flex; flex-direction: column; max-width: 82%; }
.prutter-msg-bubble {
  padding: 0.55rem 0.85rem;
  border-radius: 14px;
  white-space: pre-wrap;
  word-wrap: break-word;
  line-height: 1.4;
  font-size: 0.95rem;
}
.prutter-msg-time {
  font-size: 0.7rem;
  color: var(--ink-muted, var(--ink-soft));
  margin-top: 0.15rem;
}

.prutter-msg--theirs { align-self: flex-start; }
.prutter-msg--theirs .prutter-msg-bubble {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-bottom-left-radius: 4px;
}
.prutter-msg--theirs .prutter-msg-time { padding-left: 0.5rem; }

.prutter-msg--mine { align-self: flex-end; align-items: flex-end; }
.prutter-msg--mine .prutter-msg-bubble {
  background: var(--accent);
  color: white;
  border-bottom-right-radius: 4px;
}
.prutter-msg--mine .prutter-msg-time { padding-right: 0.5rem; }

.prutter-composer {
  flex: 0 0 auto;
  display: flex; gap: 0.5rem; align-items: flex-end;
  padding-top: 0.6rem; margin-top: 0.25rem;
  border-top: 1px solid var(--rule);
}
.prutter-composer textarea {
  flex: 1;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--rule);
  border-radius: 12px;
  background: var(--paper);
  color: var(--ink);
  font-family: inherit;
  font-size: 1rem;            /* ≥16px → iOS zoomt niet in bij focus */
  line-height: 1.35;
  resize: none;
  min-height: 44px; max-height: 40vh;
  overflow-y: auto;   /* scrollt intern zodra de auto-groei de max raakt */
}
.prutter-composer .btn { flex: 0 0 auto; min-height: 44px; }
</style>