新增3.4版本支持

js/spine-preview-settings.js

@@ -0,0 +1,58 @@
+'use strict';
+
+// Eagle's item API has no arbitrary custom fields. Keep plugin metadata in
+// userData, keyed by library + item ID, without editing Eagle metadata.json.
+const fs = require('fs');
+const path = require('path');
+const crypto = require('crypto');
+
+function identity(sourcePath, itemId) {
+	const directory = path.dirname(path.resolve(sourcePath));
+	const match = path.basename(directory).match(/^(.+)\.info$/i);
+	return match
+		? path.dirname(directory) + ':' + (itemId || match[1])
+		: path.resolve(sourcePath);
+}
+
+function createStore(userDataPath, sourcePath, itemId) {
+	const key = crypto.createHash('sha256').update(identity(sourcePath, itemId)).digest('hex');
+	const directory = path.join(userDataPath, 'SpineViewer', 'preview-settings');
+	const file = path.join(directory, key + '.json');
+	return {
+		file,
+		read() {
+			try {
+				const data = JSON.parse(fs.readFileSync(file, 'utf8'));
+				return typeof data.premultipliedAlpha === 'boolean' ? data.premultipliedAlpha : undefined;
+			} catch (e) {
+				if (e.code === 'ENOENT') return undefined;
+				throw e;
+			}
+		},
+		// This method is called only by the user's checkbox change event.
+		write(premultipliedAlpha) {
+			if (typeof premultipliedAlpha !== 'boolean') throw new TypeError('预乘设置必须为布尔值');
+			fs.mkdirSync(directory, { recursive: true });
+			const temp = file + '.' + crypto.randomBytes(8).toString('hex') + '.tmp';
+			try {
+				fs.writeFileSync(temp, JSON.stringify({ premultipliedAlpha }, null, 2) + '\n', { flag: 'wx' });
+				fs.renameSync(temp, file);
+			} finally {
+				try { fs.unlinkSync(temp); } catch (e) { if (e.code !== 'ENOENT') throw e; }
+			}
+		}
+	};
+}
+
+async function resolveDataPath(app) {
+	try {
+		const value = app && (app.userDataPath || (typeof app.getPath === 'function' && await app.getPath('userData')));
+		if (typeof value === 'string' && value) return value;
+	} catch (e) { /* Some Eagle format-view windows reject app.getPath IPC. */ }
+	const home = require('os').homedir();
+	if (process.platform === 'darwin') return path.join(home, 'Library', 'Application Support', 'Eagle');
+	if (process.platform === 'win32') return path.join(process.env.APPDATA || path.join(home, 'AppData', 'Roaming'), 'Eagle');
+	return path.join(process.env.XDG_CONFIG_HOME || path.join(home, '.config'), 'Eagle');
+}
+
+module.exports = { createStore, resolveDataPath };