MetonaTeam/MarkLite
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fix: BOM处理、异步读取、10MB文件限制、滚动同步精度优化

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This commit is contained in:
thzxx
2026-05-18 17:33:09 +08:00
parent 1a5ec08728
commit 21d7b2da9f
2 changed files with 153 additions and 14 deletions
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main.js
+20 -9
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@@ -1,6 +1,9 @@
const { app, BrowserWindow, dialog, ipcMain } = require('electron');
const path = require('path');
const fs = require('fs');
const { readFile, stat } = require('fs/promises');
const MAX_FILE_SIZE = 10 * 1024 * 1024; // 10MB
let mainWindow = null;
let activeFilePath = null; // Currently active tab's file path
@@ -149,15 +152,23 @@ async function showOpenDialog() {
return null;
}
function readFileContent(filePath) {
return fs.readFileSync(filePath, 'utf-8');
async function readFileContent(filePath) {
// 文件大小检查
const stats = await stat(filePath);
if (stats.size > MAX_FILE_SIZE) {
throw new Error(`文件过大（${(stats.size / 1024 / 1024).toFixed(1)} MB），暂不支持超过 10MB 的文件`);
}
let content = await readFile(filePath, 'utf-8');
// 剥离 UTF-8 BOM（Windows 某些编辑器会添加）
if (content.charCodeAt(0) === 0xFEFF) content = content.slice(1);
return content;
}
// Open file in a new tab (renderer manages tabs)
function openFileInTab(filePath) {
async function openFileInTab(filePath) {
if (!mainWindow || mainWindow.isDestroyed()) return;
try {
const content = readFileContent(filePath);
const content = await readFileContent(filePath);
activeFilePath = filePath;
startWatching(filePath);
mainWindow.setTitle(`MarkLite - ${path.basename(filePath)}`);
@@ -213,7 +224,7 @@ ipcMain.handle('dialog:openFile', async () => {
try {
const files = await showOpenDialog();
if (files && files.length > 0) {
const content = readFileContent(files[0]);
const content = await readFileContent(files[0]);
activeFilePath = files[0];
startWatching(files[0]);
mainWindow.setTitle(`MarkLite - ${path.basename(files[0])}`);
@@ -228,7 +239,7 @@ ipcMain.handle('dialog:openFile', async () => {
ipcMain.handle('file:read', async (event, filePath) => {
try {
const content = readFileContent(filePath);
const content = await readFileContent(filePath);
return { success: true, content };
} catch (err) {
return { success: false, error: err.message };
@@ -277,8 +288,8 @@ ipcMain.handle('file:getCurrentPath', () => {
ipcMain.handle('file:stats', async (event, filePath) => {
try {
const stats = fs.statSync(filePath);
return { success: true, size: stats.size, mtime: stats.mtime.toISOString() };
const fileStat = await stat(filePath);
return { success: true, size: fileStat.size, mtime: fileStat.mtime.toISOString() };
} catch (err) {
return { success: false, error: err.message };
}
@@ -287,7 +298,7 @@ ipcMain.handle('file:stats', async (event, filePath) => {
ipcMain.handle('file:reload', async () => {
if (!activeFilePath) return { success: false, error: '没有打开的文件' };
try {
const content = readFileContent(activeFilePath);
const content = await readFileContent(activeFilePath);
return { success: true, content, filePath: activeFilePath };
} catch (err) {
return { success: false, error: err.message };