Initial commit: MarkLite Markdown Reader
This commit is contained in:
thzxx
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const { app, BrowserWindow, dialog, ipcMain, Menu, nativeImage } = require('electron');
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const path = require('path');
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const fs = require('fs');
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let mainWindow = null;
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let currentFilePath = null;
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function createWindow() {
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// Create the browser window
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mainWindow = new BrowserWindow({
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width: 1200,
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height: 800,
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minWidth: 800,
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minHeight: 600,
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icon: path.join(__dirname, 'assets', 'icon.ico'),
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webPreferences: {
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preload: path.join(__dirname, 'preload.js'),
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contextIsolation: true,
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nodeIntegration: false
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},
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titleBarStyle: 'default',
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show: false
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});
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// Load the index.html
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mainWindow.loadFile(path.join(__dirname, 'renderer', 'index.html'));
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// Show window when ready
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mainWindow.once('ready-to-show', () => {
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mainWindow.show();
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});
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// Build menu
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buildMenu();
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mainWindow.on('closed', () => {
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mainWindow = null;
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});
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}
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function buildMenu() {
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const template = [
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{
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label: '文件',
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submenu: [
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{
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label: '打开文件',
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accelerator: 'CmdOrCtrl+O',
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click: () => handleOpenFile()
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},
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{
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label: '保存',
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accelerator: 'CmdOrCtrl+S',
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click: () => mainWindow.webContents.send('menu:save')
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},
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{
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label: '另存为',
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accelerator: 'CmdOrCtrl+Shift+S',
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click: () => mainWindow.webContents.send('menu:saveAs')
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},
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{ type: 'separator' },
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{
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label: '退出',
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accelerator: 'CmdOrCtrl+Q',
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click: () => app.quit()
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}
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]
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},
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{
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label: '视图',
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submenu: [
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{
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label: '编辑 + 预览',
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accelerator: 'CmdOrCtrl+1',
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click: () => mainWindow.webContents.send('menu:viewMode', 'split')
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},
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{
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label: '纯编辑',
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accelerator: 'CmdOrCtrl+2',
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click: () => mainWindow.webContents.send('menu:viewMode', 'editor')
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},
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{
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label: '纯预览',
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accelerator: 'CmdOrCtrl+3',
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click: () => mainWindow.webContents.send('menu:viewMode', 'preview')
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},
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{ type: 'separator' },
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{
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label: '开发者工具',
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accelerator: 'F12',
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click: () => mainWindow.webContents.toggleDevTools()
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},
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{ type: 'separator' },
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{
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label: '重新加载',
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accelerator: 'CmdOrCtrl+R',
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click: () => mainWindow.webContents.reload()
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}
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]
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},
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{
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label: '帮助',
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submenu: [
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{
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label: '关于 MarkLite',
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click: () => {
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dialog.showMessageBox(mainWindow, {
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type: 'info',
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title: '关于 MarkLite',
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message: 'MarkLite v1.0.0',
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detail: '一款轻量级的 Markdown 阅读器。\n\n技术栈：Electron + marked.js + highlight.js'
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});
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}
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}
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]
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}
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];
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const menu = Menu.buildFromTemplate(template);
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Menu.setApplicationMenu(menu);
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}
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async function handleOpenFile() {
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const result = await dialog.showOpenDialog(mainWindow, {
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properties: ['openFile'],
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filters: [
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{ name: 'Markdown 文件', extensions: ['md', 'markdown', 'txt'] },
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{ name: '所有文件', extensions: ['*'] }
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]
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});
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if (!result.canceled && result.filePaths.length > 0) {
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openFile(result.filePaths[0]);
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}
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}
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function openFile(filePath) {
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try {
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const content = fs.readFileSync(filePath, 'utf-8');
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currentFilePath = filePath;
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mainWindow.setTitle(`MarkLite - ${path.basename(filePath)}`);
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mainWindow.webContents.send('file:opened', { filePath, content });
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} catch (err) {
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dialog.showErrorBox('错误', `无法读取文件: ${err.message}`);
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}
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}
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// IPC Handlers
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ipcMain.handle('dialog:openFile', async () => {
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const result = await dialog.showOpenDialog(mainWindow, {
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properties: ['openFile'],
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filters: [
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{ name: 'Markdown 文件', extensions: ['md', 'markdown', 'txt'] },
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{ name: '所有文件', extensions: ['*'] }
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]
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});
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if (!result.canceled && result.filePaths.length > 0) {
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const filePath = result.filePaths[0];
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const content = fs.readFileSync(filePath, 'utf-8');
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currentFilePath = filePath;
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mainWindow.setTitle(`MarkLite - ${path.basename(filePath)}`);
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return { filePath, content };
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}
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return null;
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});
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ipcMain.handle('file:read', async (event, filePath) => {
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try {
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const content = fs.readFileSync(filePath, 'utf-8');
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return { success: true, content };
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} catch (err) {
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return { success: false, error: err.message };
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}
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});
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ipcMain.handle('file:save', async (event, { filePath, content }) => {
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try {
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if (filePath) {
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fs.writeFileSync(filePath, content, 'utf-8');
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currentFilePath = filePath;
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mainWindow.setTitle(`MarkLite - ${path.basename(filePath)}`);
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return { success: true, filePath };
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} else {
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// No file path, do save as
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const result = await dialog.showSaveDialog(mainWindow, {
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filters: [
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{ name: 'Markdown 文件', extensions: ['md'] },
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{ name: '文本文件', extensions: ['txt'] }
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]
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});
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if (!result.canceled) {
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fs.writeFileSync(result.filePath, content, 'utf-8');
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currentFilePath = result.filePath;
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mainWindow.setTitle(`MarkLite - ${path.basename(result.filePath)}`);
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return { success: true, filePath: result.filePath };
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}
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return { success: false, canceled: true };
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}
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} catch (err) {
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return { success: false, error: err.message };
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}
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});
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ipcMain.handle('file:saveAs', async (event, { content }) => {
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try {
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const result = await dialog.showSaveDialog(mainWindow, {
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filters: [
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{ name: 'Markdown 文件', extensions: ['md'] },
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{ name: '文本文件', extensions: ['txt'] }
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]
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});
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if (!result.canceled) {
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fs.writeFileSync(result.filePath, content, 'utf-8');
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currentFilePath = result.filePath;
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mainWindow.setTitle(`MarkLite - ${path.basename(result.filePath)}`);
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return { success: true, filePath: result.filePath };
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}
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return { success: false, canceled: true };
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} catch (err) {
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return { success: false, error: err.message };
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}
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});
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ipcMain.handle('file:getCurrentPath', () => {
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return currentFilePath;
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});
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// Handle file open from command line or file association
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function handleFileOpen() {
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const args = process.argv.slice(1);
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if (args.length > 0 && !args[0].startsWith('--')) {
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const filePath = args[0];
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if (fs.existsSync(filePath)) {
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return filePath;
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}
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}
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return null;
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}
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// App lifecycle
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app.whenReady().then(() => {
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createWindow();
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// Check for file passed via command line
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const fileToOpen = handleFileOpen();
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if (fileToOpen) {
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// Wait for window to be ready
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mainWindow.webContents.on('did-finish-load', () => {
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openFile(fileToOpen);
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});
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}
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// Handle macOS open-file event
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app.on('open-file', (event, filePath) => {
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event.preventDefault();
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if (mainWindow) {
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openFile(filePath);
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}
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});
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});
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app.on('window-all-closed', () => {
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if (process.platform !== 'darwin') {
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app.quit();
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}
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});
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app.on('activate', () => {
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if (BrowserWindow.getAllWindows().length === 0) {
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createWindow();
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}
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});
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