自动缩略图插件审核修改

2026-11-05 19:35:14 +08:00
1 parent f4e69707c3
commit d02370d6bd
@@ -0,0 +1,127 @@
+// 多个 Eagle 插件窗口共用 localStorage，用它协调唯一的活动监听实例。
+(function () {
+'use strict';
+
+const fs = require('fs');
+const path = require('path');
+
+const KEY = 'spine-thumbnail-active-instance';
+const STALE_MS = 3500;
+
+function createFileStorage(file) {
+	return {
+		file,
+		getItem(key) {
+			try {
+				const data = JSON.parse(fs.readFileSync(file, 'utf8'));
+				return typeof data[key] === 'string' ? data[key] : null;
+			} catch (error) {
+				return null;
+			}
+		},
+		setItem(key, value) {
+			let data = {};
+			try {
+				const existing = JSON.parse(fs.readFileSync(file, 'utf8'));
+				if (existing && typeof existing === 'object') data = existing;
+			} catch (error) { /* first write or damaged file */ }
+			data[key] = String(value);
+			fs.mkdirSync(path.dirname(file), { recursive: true });
+			const temp = file + '.' + process.pid + '.' + Date.now() + '.' + Math.random().toString(16).slice(2) + '.tmp';
+			fs.writeFileSync(temp, JSON.stringify(data), 'utf8');
+			fs.renameSync(temp, file);
+		},
+	};
+}
+
+function readState(storage) {
+	try {
+		const state = JSON.parse(storage.getItem(KEY));
+		if (!state || typeof state.id !== 'string' || !Number.isFinite(state.updatedAt)) return null;
+		return state;
+	} catch (error) {
+		return null;
+	}
+}
+
+function writeState(storage, id, visible, now) {
+	const state = { id, visible, updatedAt: now };
+	try { storage.setItem(KEY, JSON.stringify(state)); } catch (error) { /* 无本地存储时仍可运行 */ }
+	return state;
+}
+
+function createCoordinator(options) {
+	const storage = options.storage;
+	const id = options.id;
+	const visible = options.isVisible || (() => true);
+	const hide = options.hide || (() => {});
+	const now = options.now || Date.now;
+	const staleMs = options.staleMs || STALE_MS;
+	const intervalMs = options.intervalMs || 1000;
+	let active = false;
+	let started = false;
+	let hiddenForDuplicate = false;
+	let timer = null;
+
+	function claim() {
+		writeState(storage, id, visible(), now());
+		hiddenForDuplicate = false;
+		if (!active) {
+			active = true;
+			if (options.onActiveChanged) options.onActiveChanged(true);
+		}
+	}
+
+	function evaluate() {
+		const state = readState(storage);
+		const currentVisible = visible();
+		const canClaim = !state ||
+			state.id === id ||
+			now() - state.updatedAt > staleMs;
+		const nextActive = canClaim;
+		if (nextActive) {
+			claim();
+		} else if (currentVisible && !hiddenForDuplicate) {
+			hiddenForDuplicate = true;
+			try { hide(); } catch (error) { /* 隐藏失败不影响主窗口 */ }
+		}
+		if (nextActive !== active) {
+			active = nextActive;
+			if (options.onActiveChanged) options.onActiveChanged(active);
+		}
+		return active;
+	}
+
+	function handleVisibility() {
+		if (visible()) claim();
+		else evaluate();
+	}
+
+	function start() {
+		if (started) return active;
+		started = true;
+		const state = readState(storage);
+		const canStart = visible() ||
+			!state ||
+			state.id === id ||
+			now() - state.updatedAt > staleMs;
+		if (canStart) claim();
+		else evaluate();
+		timer = setInterval(evaluate, intervalMs);
+		return active;
+	}
+
+	function stop() {
+		if (timer) clearInterval(timer);
+		timer = null;
+		started = false;
+	}
+
+	return { start, stop, evaluate, handleVisibility, isActive: () => active };
+}
+
+const api = { createCoordinator, createFileStorage, KEY, STALE_MS };
+if (typeof window !== 'undefined') window.SpineThumbInstanceCoordinator = api;
+else if (typeof module !== 'undefined' && module.exports) module.exports = api;
+
+})();