Claude
ecbdaee19e
Three targeted frontend fixes: 1. pdf.js smart preload (thumbnail.js, resourceIcon.js). The first PDF thumbnail of a session stalled 1-2s on the lazy import of the ~1.3 MB pdf.js stack. buildResourceIcon() now fires thumbnail.preloadPdf() the moment a PDF row enters the DOM, warming both the module (~300 KB, via the now promise-memoized getPdfjsLib, shared with real users) and the worker script (~1 MB, via a cache-priming fetch — pdf.js only requests it on first getDocument). Only folders that actually contain PDFs pay the download; idempotent after first call, resets on failure so transient offline retries. 2. Admin migration poll cleanup (admin.js). The 2s setInterval kept hitting the API and updating hidden DOM after leaving the Storage tab, and polled a failing endpoint forever after session expiry (!resp.ok returned without clearing). New stopMigrationPolling() helper, invoked on tab switch away from Storage, on non-running status, and on failed polls; tab re-entry re-arms via loadStorage(). 3. resourceList.js render hoisting. Per-row i18n.t() type-cell lookups and the fully item-invariant _renderCustomActions() HTML were recomputed for every row; they now resolve once per batch via _buildItemLabels() (per-category labels memoized, rebuilt each batch so locale switches keep working). _findLaneByKey() swaps the container-wide attribute querySelector for an O(1) _lanes Map kept in sync at the only lane create/wipe sites. https://claude.ai/code/session_0193Hff42gaA962wThxMGSd1
69 lines
2.2 KiB
JavaScript
69 lines
2.2 KiB
JavaScript
/**
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* resourceIcon — shared resource icon builder.
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*
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* Returns a `.file-icon` element identical to the one in resourceList:
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* • Folders: `.file-icon.folder-icon` with CSS tab (no visible <i>)
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* • Files: `.file-icon.{specialClass}` + optional thumbnail <img> + <i>
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*
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* CSS lives in fileType.css (folder/file type colours) and resourceList.css
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* (base size in grid/list context). Consumer views add their own size overrides.
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*/
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import { thumbnail } from '../features/thumbnail.js';
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/** @import {FileItem, FolderItem} from '../core/types.js' */
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/**
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* @param {FileItem|FolderItem} item
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* @param {'file'|'folder'} resourceType
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* @returns {HTMLElement}
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*/
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function buildResourceIcon(item, resourceType) {
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const el = document.createElement('div');
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if (resourceType === 'folder') {
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el.className = 'file-icon folder-icon';
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const i = document.createElement('i');
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i.className = 'fas fa-folder';
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el.appendChild(i);
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return el;
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}
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const file = /** @type {FileItem} */ (item);
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const iconClass = file.icon_class || 'fas fa-file';
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const iconSpecialClass = file.icon_special_class || '';
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el.className = `file-icon${iconSpecialClass ? ` ${iconSpecialClass}` : ''}`;
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const canThumbnail = thumbnail?.canHandle(file) ?? false;
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if (canThumbnail) {
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// A PDF just entered the list: warm up the pdf.js stack (~1.3 MB)
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// in the background now, so a thumbnail cache-miss below doesn't
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// stall its first render on the library download. Idempotent.
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if (file.mime_type === 'application/pdf') {
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thumbnail.preloadPdf();
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}
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const img = document.createElement('img');
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img.className = 'file-thumb';
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img.src = `/api/files/${file.id}/thumbnail/icon`;
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img.loading = 'lazy';
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img.alt = '';
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img.addEventListener('error', () => {
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img.classList.add('hidden');
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thumbnail?.queueGenerate(file, (dataUrl) => {
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img.src = dataUrl;
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img.classList.remove('hidden');
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});
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});
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el.appendChild(img);
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}
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const i = document.createElement('i');
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i.className = iconClass;
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el.appendChild(i);
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return el;
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}
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export { buildResourceIcon };
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