Changeset 0.22.8 (#150)

This commit is contained in:
2026-03-04 16:06:12 +00:00
parent 389e47b0f9
commit 7e26a2a261
114 changed files with 3700 additions and 7572 deletions

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// ==========================================
// Chat Switchboard Files
// ==========================================
// File upload, smart paste, drag-and-drop, extraction
// polling, staged lifecycle, message rendering, lightbox,
// and admin storage panel.
//
// Depends on: API, App, UI (toast, getModelValue, renderChatList)
// Consumed by: chat.js (send flow), ui-core.js (message rendering),
// ui-admin.js (storage tab)
// ── Constants ───────────────────────────────
const FILE_POLL_INTERVAL = 2000; // ms between extraction status checks
const FILE_MAX_PER_MSG = 5; // mirrors backend defaultMaxFilesPerMsg
// MIME categories for capability-aware filtering
const IMAGE_TYPES = new Set([
'image/jpeg', 'image/png', 'image/gif', 'image/webp', 'image/svg+xml',
]);
// ── State ───────────────────────────────────
// Staged files waiting to be sent with the next message.
// Each entry:
// {
// localId: string — crypto.randomUUID(), stable key for DOM
// serverId: string? — file UUID from backend (null while uploading)
// filename: string
// contentType: string
// sizeBytes: number
// previewUrl: string? — object URL for image preview (revoked on remove)
// status: 'uploading' | 'queued' | 'processing' | 'complete' | 'failed' | 'error'
// uploadProgress: number — 0100 (only meaningful during 'uploading')
// extractionStatus: string? — mirrors backend metadata.extraction_status
// queuePosition: number? — extraction queue position (0 = processing)
// error: string? — error message if status is 'error' or 'failed'
// }
// App.stagedFiles is initialized in app.js.
// Polling timers are tracked here for cleanup.
const _pollTimers = new Map(); // localId → intervalId
// ── Upload ──────────────────────────────────
/**
* Stage a file for upload. Creates the staged entry, uploads to backend,
* and starts extraction polling.
*
* If no current chat exists, creates one first (same pattern as sendMessage).
*
* @param {File} file — File object from input, paste, or drop
* @returns {Promise<void>}
*/
async function stageFile(file) {
if (!App.storageConfigured) return;
// Enforce per-message limit
if (App.stagedFiles.length >= FILE_MAX_PER_MSG) {
UI.toast(`Maximum ${FILE_MAX_PER_MSG} files per message`, 'warning');
return;
}
// Build staged entry
const staged = {
localId: crypto.randomUUID(),
serverId: null,
filename: file.name,
contentType: file.type || 'application/octet-stream',
sizeBytes: file.size,
previewUrl: file.type.startsWith('image/') ? URL.createObjectURL(file) : null,
status: 'uploading',
uploadProgress: 0,
extractionStatus: null,
queuePosition: null,
error: null,
};
App.stagedFiles.push(staged);
_renderStrip();
_updateSendBlock();
// Ensure a channel exists (files are channel-scoped)
if (!App.currentChatId) {
try {
const title = file.name.slice(0, 50);
const selectedId = UI.getModelValue();
const modelInfo = App.findModel(selectedId);
const model = modelInfo?.baseModelId || selectedId;
const resp = await API.createChannel(title, model, App.settings.systemPrompt, 'direct');
const chat = {
id: resp.id, title: resp.title, type: 'direct',
model, messages: [], messageCount: 0, updatedAt: resp.updated_at,
};
App.chats.unshift(chat);
App.currentChatId = chat.id;
UI.renderChatList();
} catch (e) {
staged.status = 'error';
staged.error = 'Failed to create chat: ' + e.message;
_renderStrip();
_updateSendBlock();
return;
}
}
// Upload
try {
const result = await API.uploadFile(App.currentChatId, file);
staged.serverId = result.id;
staged.status = _mapExtractionStatus(result.metadata?.extraction_status);
staged.extractionStatus = result.metadata?.extraction_status || null;
staged.queuePosition = result.metadata?.queue_position ?? null;
// Start polling if extraction is pending/processing
if (staged.status === 'queued' || staged.status === 'processing') {
_startPolling(staged);
}
} catch (e) {
staged.status = 'error';
staged.error = e.message;
console.error('File upload failed:', e);
}
_renderStrip();
_updateSendBlock();
}
/**
* Remove a staged file by localId.
* Revokes object URL, stops polling, and optionally deletes from backend.
*/
async function unstageFile(localId) {
const idx = App.stagedFiles.findIndex(a => a.localId === localId);
if (idx === -1) return;
const staged = App.stagedFiles[idx];
// Clean up preview blob
if (staged.previewUrl) {
URL.revokeObjectURL(staged.previewUrl);
}
// Stop polling
_stopPolling(localId);
// Delete from backend if it was uploaded
if (staged.serverId) {
try {
await API.deleteFile(staged.serverId);
} catch (e) {
console.warn('Failed to delete staged file:', e.message);
}
}
App.stagedFiles.splice(idx, 1);
_renderStrip();
_updateSendBlock();
}
/**
* Clear all staged files (chat switch, cancel, etc.)
* Does NOT delete from backend — orphan cleanup handles abandoned uploads.
*/
function clearStaged() {
for (const staged of App.stagedFiles) {
if (staged.previewUrl) URL.revokeObjectURL(staged.previewUrl);
_stopPolling(staged.localId);
}
App.stagedFiles = [];
_renderStrip();
_updateSendBlock();
}
// ── Send Integration ────────────────────────
/**
* Returns file IDs (server-side UUIDs) for the current staged set.
* Only includes successfully uploaded files.
*/
function getStagedFileIds() {
return App.stagedFiles
.filter(a => a.serverId)
.map(a => a.serverId);
}
/**
* Whether the send button should be blocked due to in-flight uploads.
* Per design: blocked ONLY while any file is actively uploading (bytes in flight).
* Queued/processing/failed extraction does NOT block send.
*/
function isSendBlocked() {
return App.stagedFiles.some(a => a.status === 'uploading');
}
/**
* Whether there are any staged files (for UI visibility).
*/
function hasStagedFiles() {
return App.stagedFiles.length > 0;
}
/**
* Post-send cleanup: detach staged list without deleting from backend
* (files are now linked to the sent message).
*/
function consumeStaged() {
for (const staged of App.stagedFiles) {
if (staged.previewUrl) URL.revokeObjectURL(staged.previewUrl);
_stopPolling(staged.localId);
}
App.stagedFiles = [];
_renderStrip();
_updateSendBlock();
}
// ── Extraction Polling ──────────────────────
function _startPolling(staged) {
if (_pollTimers.has(staged.localId)) return;
const timer = setInterval(async () => {
if (!staged.serverId) return;
try {
const data = await API.getFile(staged.serverId);
const meta = data.metadata || {};
staged.extractionStatus = meta.extraction_status || null;
staged.queuePosition = meta.queue_position ?? null;
staged.status = _mapExtractionStatus(meta.extraction_status);
if (meta.extraction_error) {
staged.error = meta.extraction_error;
}
_renderStrip();
// Stop polling on terminal state
if (staged.status === 'complete' || staged.status === 'failed') {
_stopPolling(staged.localId);
}
} catch (e) {
console.warn('Extraction poll failed for', staged.localId, e.message);
// Don't stop polling on transient errors — backend might be restarting
}
}, FILE_POLL_INTERVAL);
_pollTimers.set(staged.localId, timer);
}
function _stopPolling(localId) {
const timer = _pollTimers.get(localId);
if (timer) {
clearInterval(timer);
_pollTimers.delete(localId);
}
}
function _stopAllPolling() {
for (const [id, timer] of _pollTimers) {
clearInterval(timer);
}
_pollTimers.clear();
}
// ── Status Helpers ──────────────────────────
/**
* Map backend extraction_status to frontend staged status.
* Images have no extraction — they go straight to 'complete'.
*/
function _mapExtractionStatus(backendStatus) {
switch (backendStatus) {
case 'pending': return 'queued';
case 'processing': return 'processing';
case 'complete': return 'complete';
case 'failed': return 'failed';
case 'unavailable': return 'complete'; // no extraction needed (e.g., images)
default: return 'queued';
}
}
/**
* Human-readable status label for a staged file.
*/
function fileStatusLabel(staged) {
switch (staged.status) {
case 'uploading':
return staged.uploadProgress > 0 ? `Uploading ${staged.uploadProgress}%` : 'Uploading…';
case 'queued':
if (staged.queuePosition != null && staged.queuePosition > 0) {
return `Queued (${staged.queuePosition} ahead)`;
}
return 'Queued';
case 'processing': return 'Extracting…';
case 'complete': return '✓ Ready';
case 'failed': return '⚠ Extraction failed';
case 'error': return '✕ ' + (staged.error || 'Upload failed');
default: return '';
}
}
/**
* Whether the given content type is an image (for vision gating).
*/
function isImageFile(contentType) {
return IMAGE_TYPES.has(contentType);
}
/**
* Format file size for display.
*/
function formatFileSize(bytes) {
if (bytes < 1024) return bytes + ' B';
if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(1) + ' KB';
return (bytes / (1024 * 1024)).toFixed(1) + ' MB';
}
// ── Strip Rendering ─────────────────────────
function _renderStrip() {
const strip = document.getElementById('fileStrip');
if (!strip) return;
if (App.stagedFiles.length === 0) {
strip.style.display = 'none';
strip.innerHTML = '';
return;
}
strip.style.display = 'flex';
strip.innerHTML = App.stagedFiles.map(a => {
const icon = isImageFile(a.contentType) ? '🖼' : '📄';
const name = _truncFilename(a.filename, 20);
const size = formatFileSize(a.sizeBytes);
const label = fileStatusLabel(a);
const statusClass = a.status === 'error' || a.status === 'failed' ? 'att-error' :
a.status === 'complete' ? 'att-ready' : 'att-pending';
return `<div class="att-chip ${statusClass}" data-local-id="${a.localId}">
${a.previewUrl ? `<img class="att-thumb" src="${a.previewUrl}" alt="">` : `<span class="att-icon">${icon}</span>`}
<span class="att-info">
<span class="att-name" title="${_esc(a.filename)}">${_esc(name)}</span>
<span class="att-meta">${_esc(size)}${label ? ' · ' + label : ''}</span>
</span>
<button class="att-remove" onclick="unstageFile('${a.localId}')" title="Remove">✕</button>
</div>`;
}).join('');
}
function _truncFilename(name, max) {
if (name.length <= max) return name;
const ext = name.lastIndexOf('.');
if (ext > 0 && name.length - ext <= 6) {
// Preserve extension: "very-long-name...pdf"
const suffix = name.slice(ext);
return name.slice(0, max - suffix.length - 1) + '…' + suffix;
}
return name.slice(0, max - 1) + '…';
}
function _esc(s) {
if (!s) return '';
const d = document.createElement('div');
d.textContent = s;
return d.innerHTML;
}
// ── Channel File Loading ──────────────
/**
* Fetch all files for a channel, build messageId → [att] map.
* Called after loading messages in selectChat / reloadActivePath.
* Non-blocking: failures just leave the map empty (files are optional UX).
*/
async function loadChannelFiles(channelId) {
App.channelFiles = {};
if (!channelId || !App.storageConfigured) return;
try {
const data = await API.listChannelFiles(channelId);
const list = data.files || data || [];
for (const att of list) {
if (!att.message_id) continue;
if (!App.channelFiles[att.message_id]) {
App.channelFiles[att.message_id] = [];
}
App.channelFiles[att.message_id].push(att);
}
} catch (e) {
console.debug('File load skipped:', e.message);
}
}
// ── Message File Rendering ────────────
/**
* Returns HTML string for files associated with a message.
* Called from ui-core.js _messageHTML(). Returns '' if none.
*
* Images use data-att-id; actual src is loaded post-render with auth
* via loadAuthImages(). Doc downloads use onclick handlers.
*/
function renderMessageFiles(msgId) {
if (!msgId) return '';
const atts = App.channelFiles[msgId];
if (!atts || atts.length === 0) return '';
// Check current model vision capability for hint
const selectedId = UI.getModelValue();
const modelInfo = App.findModel(selectedId);
const hasVision = !!modelInfo?.capabilities?.vision;
const items = atts.map(att => {
const isImage = isImageFile(att.content_type);
if (isImage) {
const dims = att.metadata?.thumb_dimensions || att.metadata?.dimensions;
const w = Math.min(dims?.width || 280, 320);
const visionHint = !hasVision
? '<span class="att-vision-hint" title="Current model does not support images">👁️‍🗨️</span>'
: '';
return `<div class="msg-att msg-att-image" onclick="openLightbox('${_esc(att.id)}')">
<img class="msg-att-img" data-att-id="${_esc(att.id)}" alt="${_esc(att.filename)}"
style="max-width:${w}px" loading="lazy">
${visionHint}
</div>`;
}
// Document chip
const icon = _docIcon(att.content_type);
const size = formatFileSize(att.size_bytes);
return `<a class="msg-att msg-att-doc" href="#" onclick="downloadFile('${_esc(att.id)}','${_esc(att.filename)}');return false">
<span class="att-doc-icon">${icon}</span>
<span class="att-doc-info">
<span class="att-doc-name">${_esc(att.filename)}</span>
<span class="att-doc-size">${size}</span>
</span>
<span class="att-doc-dl">⬇</span>
</a>`;
});
return `<div class="msg-files">${items.join('')}</div>`;
}
function _docIcon(contentType) {
if (contentType === 'application/pdf') return '📕';
if (contentType?.includes('spreadsheet') || contentType?.includes('excel')) return '📊';
if (contentType?.includes('presentation') || contentType?.includes('powerpoint')) return '📙';
if (contentType?.includes('word') || contentType?.includes('document')) return '📄';
if (contentType?.startsWith('text/')) return '📝';
return '📎';
}
// ── Image Lightbox ──────────────────────────
function openLightbox(fileId) {
const overlay = document.getElementById('lightbox');
const img = document.getElementById('lightboxImg');
if (!overlay || !img) return;
img.src = '';
img.alt = 'Loading…';
overlay.classList.add('active');
document.body.style.overflow = 'hidden';
// Fetch full-size image with auth
API.downloadFileBlob(fileId)
.then(blob => { img.src = URL.createObjectURL(blob); })
.catch(() => { img.alt = 'Failed to load image'; });
}
function closeLightbox() {
const overlay = document.getElementById('lightbox');
const img = document.getElementById('lightboxImg');
if (!overlay) return;
overlay.classList.remove('active');
document.body.style.overflow = '';
// Revoke previous blob URL to free memory
if (img?.src?.startsWith('blob:')) URL.revokeObjectURL(img.src);
if (img) { img.src = ''; img.alt = ''; }
}
// ── Auth Image Loading ──────────────────────
/**
* Post-render pass: finds all <img data-att-id="..."> in the given
* container and fetches them with auth headers, setting blob URLs.
* Called after renderMessages and reloadActivePath.
*/
function loadAuthImages(container) {
if (!container) container = document.getElementById('chatMessages');
if (!container) return;
const imgs = container.querySelectorAll('img[data-att-id]:not([data-loaded])');
for (const img of imgs) {
const attId = img.dataset.attId;
if (!attId) continue;
img.dataset.loaded = '1';
API.downloadFileBlob(attId)
.then(blob => { img.src = URL.createObjectURL(blob); })
.catch(() => {
img.alt = '⚠ Load failed';
img.classList.add('att-load-error');
});
}
}
// ── Document Download ───────────────────────
/**
* Download a file via auth-aware fetch.
* Creates a temporary <a> element to trigger the browser download dialog.
*/
async function downloadFile(fileId, filename) {
try {
const blob = await API.downloadFileBlob(fileId);
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = filename || 'download';
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
URL.revokeObjectURL(url);
} catch (e) {
UI.toast('Download failed: ' + e.message, 'error');
}
}
// ── Admin Storage Panel ─────────────────────
async function loadAdminStorage() {
const el = document.getElementById('adminStorageContent');
if (!el) return;
el.innerHTML = '<div class="loading">Loading...</div>';
try {
const [status, orphans] = await Promise.all([
API.adminGetStorageStatus().catch(() => null),
API.adminGetOrphanCount().catch(() => null),
]);
let html = '';
// Status card
if (status) {
const healthClass = status.healthy ? 'badge-success' : 'badge-danger';
const healthLabel = status.healthy ? 'Healthy' : 'Unhealthy';
html += `<div class="admin-storage-card">
<h4>Storage Backend</h4>
<div class="admin-storage-grid">
<div class="admin-storage-item">
<span class="admin-storage-label">Backend</span>
<span class="admin-storage-value">${_esc(status.backend || 'none')}</span>
</div>
<div class="admin-storage-item">
<span class="admin-storage-label">Status</span>
<span class="badge ${healthClass}">${healthLabel}</span>
</div>
<div class="admin-storage-item">
<span class="admin-storage-label">Total Files</span>
<span class="admin-storage-value">${status.total_files ?? '—'}</span>
</div>
<div class="admin-storage-item">
<span class="admin-storage-label">Total Size</span>
<span class="admin-storage-value">${status.total_bytes ? formatFileSize(status.total_bytes) : '—'}</span>
</div>
${status.path ? `<div class="admin-storage-item">
<span class="admin-storage-label">Path</span>
<span class="admin-storage-value" style="font-family:monospace;font-size:12px">${_esc(status.path)}</span>
</div>` : ''}
${status.endpoint ? `<div class="admin-storage-item">
<span class="admin-storage-label">Endpoint</span>
<span class="admin-storage-value" style="font-family:monospace;font-size:12px">${_esc(status.endpoint)}</span>
</div>` : ''}
${status.bucket ? `<div class="admin-storage-item">
<span class="admin-storage-label">Bucket</span>
<span class="admin-storage-value" style="font-family:monospace;font-size:12px">${_esc(status.bucket)}</span>
</div>` : ''}
</div>
</div>`;
} else {
html += `<div class="admin-storage-card">
<h4>Storage Backend</h4>
<p class="empty-hint">Storage not configured. Set STORAGE_BACKEND=pvc or STORAGE_BACKEND=s3 to enable file uploads.</p>
</div>`;
}
// Orphan cleanup card
if (orphans) {
const count = orphans.count ?? 0;
const bytes = orphans.total_bytes ?? 0;
html += `<div class="admin-storage-card">
<h4>Orphan Files</h4>
<p class="admin-storage-desc">Files uploaded but never linked to a message for &gt;24 hours.</p>
<div class="admin-storage-grid">
<div class="admin-storage-item">
<span class="admin-storage-label">Orphaned</span>
<span class="admin-storage-value">${count} file${count !== 1 ? 's' : ''}</span>
</div>
<div class="admin-storage-item">
<span class="admin-storage-label">Reclaimable</span>
<span class="admin-storage-value">${formatFileSize(bytes)}</span>
</div>
</div>
${count > 0 ? `<button class="btn-small" id="adminRunCleanup" style="margin-top:8px">Run Cleanup Now</button>` : ''}
</div>`;
}
el.innerHTML = html;
// Wire cleanup button
document.getElementById('adminRunCleanup')?.addEventListener('click', async (e) => {
const btn = e.target;
btn.disabled = true;
btn.textContent = 'Cleaning…';
try {
const result = await API.adminRunStorageCleanup();
UI.toast(`Cleaned ${result.deleted || 0} orphan${result.deleted !== 1 ? 's' : ''}, freed ${formatFileSize(result.freed_bytes || 0)}`, 'success');
await loadAdminStorage(); // refresh counts
} catch (err) {
UI.toast('Cleanup failed: ' + err.message, 'error');
btn.disabled = false;
btn.textContent = 'Run Cleanup Now';
}
});
} catch (e) {
el.innerHTML = `<div class="empty-hint">Failed to load storage status: ${_esc(e.message)}</div>`;
}
}
// ── Constants (Paste) ───────────────────────
// Threshold for auto-attaching pasted text as a file.
// Synced from backend via PublicSettings (storage.paste_to_file_chars).
// Falls back to 2000 if not yet loaded.
function _pasteToFileChars() {
return App.pasteToFileChars || 2000;
}
// Accept string for file picker — mirrors backend allowedMIMETypes.
// Backend is authoritative (rejects disallowed types server-side),
// this just gives the OS file dialog a better filter.
const FILE_ACCEPT = [
'image/jpeg', 'image/png', 'image/gif', 'image/webp', 'image/svg+xml',
'application/pdf',
'text/plain', 'text/markdown', 'text/csv',
'.docx', '.xlsx', '.pptx', '.doc', '.xls', '.odt', '.ods', '.odp', '.rtf',
].join(',');
// ── MIME → Extension ────────────────────────
const _mimeToExt = {
'image/jpeg': 'jpg', 'image/png': 'png', 'image/gif': 'gif',
'image/webp': 'webp', 'image/svg+xml': 'svg',
'application/pdf': 'pdf', 'text/plain': 'txt', 'text/markdown': 'md',
'text/csv': 'csv', 'text/html': 'html',
};
function _extFromMime(mime) {
return _mimeToExt[mime] || mime.split('/').pop() || 'bin';
}
// ── Send Button Blocking ────────────────────
function _updateSendBlock() {
const sendBtn = document.getElementById('sendBtn');
if (!sendBtn) return;
// Merge with existing generation check — don't override if generating
if (App.isGenerating) return;
if (isSendBlocked()) {
sendBtn.disabled = true;
sendBtn.title = 'Upload in progress…';
} else {
sendBtn.disabled = false;
sendBtn.title = 'Send';
}
}
// ── Init + Listeners ────────────────────────
/**
* Called from app.js startApp(). Reads storage_configured from boot
* payload and sets up file UI visibility.
*/
function initFiles() {
const attachBtn = document.getElementById('attachBtn');
const fileInput = document.getElementById('fileInput');
if (attachBtn) {
attachBtn.style.display = App.storageConfigured ? '' : 'none';
}
if (fileInput) {
fileInput.accept = FILE_ACCEPT;
}
console.log(`📎 Files: storage ${App.storageConfigured ? 'configured' : 'not configured'}`);
}
/**
* Called from app.js initListeners(). Wires up all file input
* handlers: button, file picker, paste, and drag-and-drop.
*/
function _initFileListeners() {
const attachBtn = document.getElementById('attachBtn');
const fileInput = document.getElementById('fileInput');
const chatArea = document.getElementById('chatMessages');
const lightbox = document.getElementById('lightbox');
// ── 📎 Button → File Picker ─────────────
if (attachBtn && fileInput) {
attachBtn.addEventListener('click', () => {
if (!App.storageConfigured) return;
fileInput.click();
});
fileInput.addEventListener('change', () => {
const files = fileInput.files;
if (!files?.length) return;
for (const file of files) stageFile(file);
fileInput.value = ''; // reset so same file can be re-selected
});
}
// ── Smart Paste ─────────────────────────
// Attach to the active input element (CM6 contentDOM or textarea)
const pasteTarget = (typeof ChatInput !== 'undefined' && ChatInput.getDom())
? ChatInput.getDom()
: document.getElementById('messageInput');
if (pasteTarget) {
pasteTarget.addEventListener('paste', (e) => {
if (!App.storageConfigured) return; // fall through to normal paste
const items = [...(e.clipboardData?.items || [])];
// Binary detection: images/files from clipboard
const binaryItems = items.filter(i => i.kind === 'file');
if (binaryItems.length > 0) {
e.preventDefault();
for (const item of binaryItems) {
const file = item.getAsFile();
if (!file) continue;
// Generate UUID filename — original clipboard items have no useful name
const ext = _extFromMime(file.type);
const renamed = new File([file], `${crypto.randomUUID()}.${ext}`, { type: file.type });
stageFile(renamed);
}
return;
}
// Large text detection — auto-attach as .txt file
const _ptfChars = _pasteToFileChars();
if (_ptfChars > 0) {
const text = e.clipboardData?.getData('text/plain');
if (text && text.length > _ptfChars) {
e.preventDefault();
const blob = new Blob([text], { type: 'text/plain' });
const file = new File([blob], `${crypto.randomUUID()}.txt`, { type: 'text/plain' });
stageFile(file);
return;
}
}
// Below threshold or no text: normal paste (no preventDefault)
});
}
// ── Drag-and-Drop ───────────────────────
if (chatArea) {
// Track drag enter/leave depth to avoid flicker from child elements
let dragDepth = 0;
chatArea.addEventListener('dragenter', (e) => {
if (!App.storageConfigured) return;
if (!_hasDragFiles(e)) return;
e.preventDefault();
dragDepth++;
if (dragDepth === 1) chatArea.classList.add('drag-over');
});
chatArea.addEventListener('dragover', (e) => {
if (!App.storageConfigured) return;
if (!_hasDragFiles(e)) return;
e.preventDefault(); // required to allow drop
e.dataTransfer.dropEffect = 'copy';
});
chatArea.addEventListener('dragleave', (e) => {
if (!App.storageConfigured) return;
dragDepth--;
if (dragDepth <= 0) {
dragDepth = 0;
chatArea.classList.remove('drag-over');
}
});
chatArea.addEventListener('drop', (e) => {
if (!App.storageConfigured) return;
e.preventDefault();
dragDepth = 0;
chatArea.classList.remove('drag-over');
const files = e.dataTransfer?.files;
if (!files?.length) return;
for (const file of files) stageFile(file);
});
}
// ── Lightbox ────────────────────────────
if (lightbox) {
// Click overlay (not the image) to close
lightbox.addEventListener('click', (e) => {
if (e.target === lightbox || e.target.classList.contains('lightbox-close')) {
closeLightbox();
}
});
}
}
/**
* Check if a drag event contains files (not just text selection drag).
*/
function _hasDragFiles(e) {
if (!e.dataTransfer?.types) return false;
return e.dataTransfer.types.includes('Files');
}