claude BotandClaude Opus 5.5
d04350df7a
- vue vignettes/liste, miniatures générées à la sauvegarde et à la demande - multi-sélection (cases, Ctrl/Maj+clic, Ctrl+A, Échap, Suppr) - glisser-déposer de la sélection, dialogue « Déplacer vers… » tactile Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CZ78TqR7fgtRx3rvpNUbAL
104 lines
3.2 KiB
TypeScript
104 lines
3.2 KiB
TypeScript
// Miniatures PNG des schémas : rendues dans le navigateur par Excalidraw
|
|
// (exportToBlob), stockées côté serveur dans .thumbs/ (voir storage/thumbs.go).
|
|
|
|
import { exportToBlob, restoreElements } from "@excalidraw/excalidraw";
|
|
import type { AppState, BinaryFiles } from "@excalidraw/excalidraw/types";
|
|
import type { ExcalidrawElement } from "@excalidraw/excalidraw/element/types";
|
|
import { api } from "./api";
|
|
|
|
const THUMB_PX = 320;
|
|
|
|
/** Rend la miniature d'une scène ; null si la scène est vide. */
|
|
export async function renderThumb(
|
|
elements: readonly ExcalidrawElement[],
|
|
appState: Partial<AppState>,
|
|
files: BinaryFiles,
|
|
): Promise<Blob | null> {
|
|
const live = elements.filter((e) => !e.isDeleted);
|
|
if (live.length === 0) return null;
|
|
return exportToBlob({
|
|
elements: live,
|
|
appState: {
|
|
viewBackgroundColor: appState.viewBackgroundColor ?? "#ffffff",
|
|
exportBackground: true,
|
|
exportWithDarkMode: false, // le thème sombre est appliqué en CSS
|
|
exportEmbedScene: false,
|
|
},
|
|
files,
|
|
maxWidthOrHeight: THUMB_PX,
|
|
exportPadding: 16,
|
|
mimeType: "image/png",
|
|
});
|
|
}
|
|
|
|
/** Rend puis envoie la miniature ; renvoie false si la scène est vide. */
|
|
export async function storeThumb(
|
|
path: string,
|
|
elements: readonly ExcalidrawElement[],
|
|
appState: Partial<AppState>,
|
|
files: BinaryFiles,
|
|
): Promise<boolean> {
|
|
const png = await renderThumb(elements, appState, files);
|
|
if (png) await api.writeThumb(path, png);
|
|
return png !== null;
|
|
}
|
|
|
|
// --- Génération à la demande (schémas importés, anciens, modifiés ailleurs) ---
|
|
|
|
export type ThumbResult = "ok" | "empty" | "error";
|
|
|
|
const MAX_PARALLEL = 2;
|
|
const results = new Map<string, ThumbResult>(); // "chemin@date" -> résultat
|
|
const pending = new Map<string, Promise<ThumbResult>>();
|
|
const queue: (() => void)[] = [];
|
|
let running = 0;
|
|
|
|
const next = () => {
|
|
while (running < MAX_PARALLEL && queue.length) {
|
|
running++;
|
|
queue.shift()!();
|
|
}
|
|
};
|
|
|
|
async function generate(path: string): Promise<ThumbResult> {
|
|
try {
|
|
const { text } = await api.read(path);
|
|
const data = JSON.parse(text);
|
|
const elements = restoreElements(data.elements ?? [], null);
|
|
return (await storeThumb(path, elements, data.appState ?? {}, data.files ?? {})) ? "ok" : "empty";
|
|
} catch (e) {
|
|
console.warn("miniature", path, e);
|
|
return "error";
|
|
}
|
|
}
|
|
|
|
/** Résultat déjà connu pour cette version du schéma (évite de régénérer en boucle). */
|
|
export const knownThumb = (path: string, version: string) => results.get(`${path}@${version}`);
|
|
|
|
/** Génère la miniature manquante d'un schéma (file d'attente, 2 en parallèle). */
|
|
export function ensureThumb(path: string, version: string): Promise<ThumbResult> {
|
|
const key = `${path}@${version}`;
|
|
const known = results.get(key);
|
|
if (known) return Promise.resolve(known);
|
|
let p = pending.get(key);
|
|
if (!p) {
|
|
p = new Promise<ThumbResult>((resolve) => {
|
|
queue.push(() =>
|
|
generate(path)
|
|
.then((r) => {
|
|
results.set(key, r);
|
|
resolve(r);
|
|
})
|
|
.finally(() => {
|
|
pending.delete(key);
|
|
running--;
|
|
next();
|
|
}),
|
|
);
|
|
next();
|
|
});
|
|
pending.set(key, p);
|
|
}
|
|
return p;
|
|
}
|