Diocrafts
db93b48149
Backend:
- get_thumbnail: for non-images, serve cached thumb or 204 (not 400)
- store_external_thumbnail: validate + re-encode to WebP + persist
- get_cached_thumbnail: memory → disk lookup without generation
- PUT /api/files/{id}/thumbnail/{size} endpoint for client uploads
- ThumbnailPort trait: add get_cached_thumbnail + store_external_thumbnail
Frontend (photos.js):
- On <img> error for video tiles, use <video> + <canvas> to extract
a frame at 25% duration using browser's native codec
- Show frame immediately via blob URL
- Fire-and-forget PUT to server for permanent caching
- Subsequent visits serve cached WebP instantly (no re-extraction)
Zero server-side dependencies — CPU distributed across clients.
457 lines
16 KiB
JavaScript
Executable File
457 lines
16 KiB
JavaScript
Executable File
/**
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* OxiCloud - Photos Timeline View
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* Photo grid grouped by day/month/year, with infinite scroll and multi-select.
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*/
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const photosView = {
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/** @type {Array} All loaded photo items */
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items: [],
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/** @type {string|null} Cursor for next page */
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nextCursor: null,
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/** @type {boolean} Currently fetching */
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loading: false,
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/** @type {boolean} All items loaded */
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exhausted: false,
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/** @type {Set<string>} Selected item IDs */
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selected: new Set(),
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/** @type {IntersectionObserver|null} */
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_observer: null,
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/** @type {HTMLElement|null} */
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_container: null,
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/** @type {boolean} */
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_initialized: false,
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/** @type {'daily'|'monthly'|'yearly'} */
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groupMode: 'monthly',
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PAGE_SIZE: 200,
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/** Auth headers (HttpOnly cookies) */
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_headers(json = false) {
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const h = typeof getCsrfHeaders === 'function' ? { ...getCsrfHeaders() } : {};
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if (json) h['Content-Type'] = 'application/json';
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return h;
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},
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/** Initialize / re-initialize the photos view */
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init() {
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if (!this._container) {
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const contentArea = document.querySelector('.content-area');
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if (!contentArea) return;
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const el = document.createElement('div');
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el.id = 'photos-container';
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el.className = 'photos-container';
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contentArea.appendChild(el);
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this._container = el;
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}
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if (!this._initialized) {
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this.groupMode = localStorage.getItem('oxicloud-photos-group') || 'monthly';
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this._initialized = true;
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}
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},
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/** Show the photos view and load data */
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show() {
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this.init();
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if (!this._container) return;
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this._container.classList.add('active');
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this.items = [];
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this.nextCursor = null;
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this.exhausted = false;
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this.selected.clear();
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this._render();
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this._loadPage();
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},
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/** Hide the photos view */
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hide() {
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if (this._container) {
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this._container.classList.remove('active');
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}
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this._destroyObserver();
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this._hideSelectionBar();
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},
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/** Switch grouping mode */
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setGroupMode(mode) {
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if (this.groupMode === mode) return;
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this.groupMode = mode;
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localStorage.setItem('oxicloud-photos-group', mode);
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this._render();
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},
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/** Fetch a page of photos from the API */
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async _loadPage() {
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if (this.loading || this.exhausted) return;
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this.loading = true;
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this._showLoading(true);
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try {
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let url = `/api/photos?limit=${this.PAGE_SIZE}`;
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if (this.nextCursor) {
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url += `&before=${this.nextCursor}`;
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}
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const res = await fetch(url, {
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credentials: 'include',
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headers: this._headers()
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});
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if (!res.ok) throw new Error(`HTTP ${res.status}`);
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const data = await res.json();
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if (!data || data.length === 0) {
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this.exhausted = true;
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} else {
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this.items.push(...data);
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const cursor = res.headers.get('X-Next-Cursor');
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if (cursor && data.length >= this.PAGE_SIZE) {
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this.nextCursor = cursor;
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} else {
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this.exhausted = true;
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}
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}
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} catch (err) {
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console.error('Error loading photos:', err);
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this.exhausted = true;
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} finally {
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this.loading = false;
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this._showLoading(false);
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this._render();
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}
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},
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/** Render the full timeline from this.items */
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_render() {
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if (!this._container) return;
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this._destroyObserver();
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// Set group mode class on container
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this._container.classList.remove('photos-group-daily', 'photos-group-monthly', 'photos-group-yearly');
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this._container.classList.add(`photos-group-${this.groupMode}`);
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if (this.items.length === 0 && this.exhausted) {
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this._renderEmpty();
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return;
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}
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if (this.items.length === 0) return;
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// Group by selected mode
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const groups = this._groupItems(this.items);
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let html = this._renderToolbar();
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for (const [label, files] of groups) {
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html += `<div class="photos-day-header">${this._escHtml(label)}<span class="photos-day-count">${files.length}</span></div>`;
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html += '<div class="photos-grid">';
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for (const file of files) {
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const isVideo = file.mime_type && file.mime_type.startsWith('video/');
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const selected = this.selected.has(file.id) ? ' selected' : '';
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const thumbUrl = `/api/files/${file.id}/thumbnail/preview`;
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html += `<div class="photo-tile${selected}" data-id="${this._escAttr(file.id)}" data-mime="${this._escAttr(file.mime_type)}">`;
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html += `<div class="photo-check"><i class="fas fa-check"></i></div>`;
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html += `<img src="${thumbUrl}" loading="lazy" alt="${this._escAttr(file.name)}">`;
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if (isVideo) {
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html += `<div class="video-badge"><i class="fas fa-play"></i></div>`;
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}
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html += `</div>`;
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}
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html += '</div>';
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}
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// Sentinel for infinite scroll
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html += '<div class="photos-sentinel"></div>';
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this._container.innerHTML = html;
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// Attach click handlers via delegation
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this._container.onclick = (e) => this._handleClick(e);
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// Observe sentinel for infinite scroll
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const sentinel = this._container.querySelector('.photos-sentinel');
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if (sentinel && !this.exhausted) {
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this._observer = new IntersectionObserver((entries) => {
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if (entries[0].isIntersecting) {
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this._loadPage();
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}
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}, { rootMargin: '400px' });
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this._observer.observe(sentinel);
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}
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// Set up client-side video thumbnail generation
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this._setupVideoThumbnails();
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},
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// ── Client-side video thumbnail generation ──────────────────────
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// Uses the browser's native video decoder (<video> + <canvas>) to
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// extract a frame, show it immediately, and upload to the server
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// for permanent caching. Zero server-side dependencies (no ffmpeg).
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/** Attach error handlers to video tile images; on failure, extract a
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* frame from the video using the browser's built-in codec. */
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_setupVideoThumbnails() {
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const tiles = this._container.querySelectorAll('.photo-tile[data-mime^="video/"]');
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for (const tile of tiles) {
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const img = tile.querySelector('img');
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if (!img) continue;
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// The server returns 204 for videos without a cached thumbnail,
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// which causes the <img> to fire 'error'. We could also detect
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// a natural 0×0 image.
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img.addEventListener('error', () => {
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this._generateVideoThumbnail(tile, img);
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}, { once: true });
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}
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},
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/** Extract a single frame from a video and display it as the tile
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* thumbnail, then upload the WebP to the server for caching. */
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_generateVideoThumbnail(tile, img) {
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const fileId = tile.dataset.id;
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const video = document.createElement('video');
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video.crossOrigin = 'anonymous';
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video.preload = 'metadata';
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video.muted = true;
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// Auth is handled via HttpOnly cookie — direct URL works
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video.src = `/api/files/${fileId}`;
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video.addEventListener('loadeddata', () => {
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// Seek to 25 % of duration, clamped between 0.5 s and 5 s
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video.currentTime = Math.min(5, Math.max(0.5, video.duration * 0.25));
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}, { once: true });
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video.addEventListener('seeked', () => {
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const canvas = document.createElement('canvas');
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canvas.width = video.videoWidth;
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canvas.height = video.videoHeight;
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const ctx = canvas.getContext('2d');
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ctx.drawImage(video, 0, 0);
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// Try WebP first, fall back to JPEG
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const mimeType = typeof canvas.toBlob === 'function'
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? 'image/webp' : 'image/jpeg';
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canvas.toBlob((blob) => {
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if (!blob) return;
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// Show immediately in the tile
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const url = URL.createObjectURL(blob);
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img.src = url;
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// Upload to server for permanent caching (fire-and-forget)
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const token = localStorage.getItem('token')
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|| sessionStorage.getItem('token');
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const headers = { 'Content-Type': blob.type };
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if (token) headers['Authorization'] = `Bearer ${token}`;
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fetch(`/api/files/${fileId}/thumbnail/preview`, {
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method: 'PUT',
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headers,
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body: blob,
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}).catch(() => { /* best-effort */ });
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// Release video resources
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video.src = '';
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video.load();
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}, mimeType, 0.80);
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}, { once: true });
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// If the video can't be loaded at all, keep the generic play badge
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video.addEventListener('error', () => {
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video.src = '';
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video.load();
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}, { once: true });
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},
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/** Render the group mode toolbar */
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_renderToolbar() {
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const t = (k, d) => window.i18n ? window.i18n.t(k) : d;
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const modes = [
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['daily', t('photos.view_daily', 'Day')],
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['monthly', t('photos.view_monthly', 'Month')],
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['yearly', t('photos.view_yearly', 'Year')]
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];
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let html = '<div class="photos-toolbar"><div class="view-toggle">';
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for (const [mode, label] of modes) {
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const active = this.groupMode === mode ? ' active' : '';
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html += `<button class="toggle-btn${active}" data-group-mode="${mode}">${this._escHtml(label)}</button>`;
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}
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html += '</div></div>';
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return html;
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},
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/** Render empty state */
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_renderEmpty() {
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const t = (k, d) => window.i18n ? window.i18n.t(k) : d;
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this._container.innerHTML = `
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<div class="photos-empty">
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<i class="fas fa-images"></i>
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<p class="photos-empty-title">${t('photos.empty_state', 'No photos yet')}</p>
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<p>${t('photos.empty_hint', 'Upload images or videos to see them here')}</p>
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</div>`;
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},
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/** Group items by the current groupMode */
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_groupItems(items) {
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const map = new Map();
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for (const item of items) {
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const ts = (item.sort_date || item.created_at) * 1000;
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const d = new Date(ts);
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let key;
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if (this.groupMode === 'yearly') {
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key = String(d.getFullYear());
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} else if (this.groupMode === 'monthly') {
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key = d.toLocaleDateString(undefined, { year: 'numeric', month: 'long' });
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} else {
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key = d.toLocaleDateString(undefined, {
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weekday: 'long', year: 'numeric', month: 'long', day: 'numeric'
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});
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}
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if (!map.has(key)) map.set(key, []);
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map.get(key).push(item);
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}
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return map;
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},
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/** Handle click on photo tile or toolbar */
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_handleClick(e) {
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// Handle group mode toggle
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const modeBtn = e.target.closest('[data-group-mode]');
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if (modeBtn) {
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this.setGroupMode(modeBtn.dataset.groupMode);
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return;
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}
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const tile = e.target.closest('.photo-tile');
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if (!tile) return;
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const id = tile.dataset.id;
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const check = e.target.closest('.photo-check');
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// If clicking checkbox or in selection mode, toggle select
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if (check || this.selected.size > 0) {
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this._toggleSelect(id, tile);
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return;
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}
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// Otherwise open lightbox
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const idx = this.items.findIndex(f => f.id === id);
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if (idx >= 0 && window.photosLightbox) {
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window.photosLightbox.open(this.items, idx);
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}
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},
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/** Toggle selection of an item */
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_toggleSelect(id, tile) {
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if (this.selected.has(id)) {
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this.selected.delete(id);
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tile.classList.remove('selected');
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} else {
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this.selected.add(id);
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tile.classList.add('selected');
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}
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this._updateSelectionBar();
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},
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/** Show/update selection bar */
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_updateSelectionBar() {
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let bar = document.getElementById('photos-selection-bar');
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if (this.selected.size === 0) {
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this._hideSelectionBar();
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return;
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}
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if (!bar) {
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bar = document.createElement('div');
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bar.id = 'photos-selection-bar';
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bar.className = 'photos-selection-bar';
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document.body.appendChild(bar);
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}
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const t = (k, d) => window.i18n ? window.i18n.t(k) : d;
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const count = this.selected.size;
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bar.innerHTML = `
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<span class="selection-count">${count} ${t('photos.items_selected', 'selected')}</span>
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<button id="photos-sel-download" title="Download"><i class="fas fa-download"></i></button>
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<button id="photos-sel-delete" title="Delete"><i class="fas fa-trash"></i></button>
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<button id="photos-sel-clear" title="Clear"><i class="fas fa-times"></i></button>
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`;
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bar.querySelector('#photos-sel-clear').onclick = () => {
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this.selected.clear();
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this._container.querySelectorAll('.photo-tile.selected').forEach(t => t.classList.remove('selected'));
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this._hideSelectionBar();
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};
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bar.querySelector('#photos-sel-delete').onclick = async () => {
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if (!confirm('Delete selected items?')) return;
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for (const fid of this.selected) {
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try {
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await fetch(`/api/files/${fid}`, {
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method: 'DELETE',
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credentials: 'include',
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headers: this._headers()
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});
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} catch (err) {
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console.error('Delete failed:', fid, err);
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}
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}
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this.items = this.items.filter(f => !this.selected.has(f.id));
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this.selected.clear();
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this._hideSelectionBar();
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this._render();
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};
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bar.querySelector('#photos-sel-download').onclick = async () => {
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for (const fid of this.selected) {
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const a = document.createElement('a');
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a.href = `/api/files/${fid}`;
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a.download = '';
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document.body.appendChild(a);
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a.click();
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a.remove();
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}
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};
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bar.style.display = 'flex';
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},
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_hideSelectionBar() {
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const bar = document.getElementById('photos-selection-bar');
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if (bar) bar.style.display = 'none';
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},
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_showLoading(show) {
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if (!this._container) return;
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let loader = this._container.querySelector('.photos-loading');
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if (show && !loader) {
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loader = document.createElement('div');
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loader.className = 'photos-loading';
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loader.innerHTML = '<i class="fas fa-spinner"></i> Loading...';
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this._container.appendChild(loader);
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} else if (!show && loader) {
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loader.remove();
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}
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},
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_destroyObserver() {
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if (this._observer) {
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this._observer.disconnect();
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this._observer = null;
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}
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},
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_escHtml(s) {
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const d = document.createElement('div');
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d.textContent = s;
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return d.innerHTML;
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},
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_escAttr(s) {
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return String(s || '').replace(/"/g, '"').replace(/</g, '<');
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}
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};
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window.photosView = photosView;
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