1288 lines
39 KiB
JavaScript
Vendored
1288 lines
39 KiB
JavaScript
Vendored
const fs = require('fs')
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const os = require("os");
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const path = require('path')
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const {app, BrowserWindow, ipcMain, dialog, clipboard, nativeImage, shell, Tray, Menu} = require('electron')
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const {autoUpdater} = require("electron-updater")
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const log = require("electron-log");
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const fsProm = require('fs/promises');
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const PDFDocument = require('pdf-lib').PDFDocument;
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const crc = require('crc');
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const zlib = require('zlib');
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const utils = require('./utils');
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const config = require('./package.json');
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let mainWindow = null,
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mainTray = null,
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subWindow = [],
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willQuitApp = false,
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devloadUrl = "",
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devloadCachePath = path.resolve(__dirname, ".devload");
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if (fs.existsSync(devloadCachePath)) {
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devloadUrl = fs.readFileSync(devloadCachePath, 'utf8')
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}
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/**
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* 创建主窗口
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*/
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function createMainWindow() {
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mainWindow = new BrowserWindow({
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width: 1280,
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height: 800,
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center: true,
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autoHideMenuBar: true,
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webPreferences: {
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preload: path.join(__dirname, 'electron-preload.js'),
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webSecurity: true,
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nodeIntegration: true,
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contextIsolation: true,
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nativeWindowOpen: true
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}
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})
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const originalUA = mainWindow.webContents.session.getUserAgent() || mainWindow.webContents.getUserAgent()
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mainWindow.webContents.setUserAgent(originalUA + " MainTaskWindow/" + process.platform + "/" + os.arch() + "/1.0");
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mainWindow.webContents.setWindowOpenHandler(({url}) => {
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openExternal(url)
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return {action: 'deny'}
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})
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if (devloadUrl) {
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mainWindow.loadURL(devloadUrl).then(_ => {
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})
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} else {
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mainWindow.loadFile('./public/index.html').then(_ => {
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})
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}
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mainWindow.on('page-title-updated', (event, title) => {
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if (title == "index.html") {
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event.preventDefault()
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}
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})
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mainWindow.on('close', event => {
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if (!willQuitApp) {
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utils.onBeforeUnload(event).then(() => {
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if (process.platform === 'win32') {
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mainWindow.hide()
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} else if (process.platform === 'darwin') {
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mainWindow.hide()
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} else {
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app.quit()
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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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* 创建子窗口
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* @param args {path, hash, title, titleFixed, force, userAgent, config, webPreferences}
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*/
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function createSubWindow(args) {
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if (!args) {
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return;
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}
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if (!utils.isJson(args)) {
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args = {path: args, config: {}}
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}
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let name = args.name || "auto_" + utils.randomString(6);
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let item = subWindow.find(item => item.name == name);
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let browser = item ? item.browser : null;
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if (browser) {
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browser.focus();
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if (args.force === false) {
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return;
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}
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} else {
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let config = args.config || {};
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let webPreferences = args.webPreferences || {};
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browser = new BrowserWindow(Object.assign({
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width: 1280,
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height: 800,
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center: true,
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parent: mainWindow,
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autoHideMenuBar: true,
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webPreferences: Object.assign({
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preload: path.join(__dirname, 'electron-preload.js'),
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webSecurity: true,
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nodeIntegration: true,
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contextIsolation: true,
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nativeWindowOpen: true
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}, webPreferences),
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}, config))
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browser.on('page-title-updated', (event, title) => {
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if (title == "index.html" || config.titleFixed === true) {
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event.preventDefault()
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}
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})
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browser.on('close', event => {
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if (!willQuitApp) {
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utils.onBeforeUnload(event).then(() => {
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event.sender.destroy()
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})
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}
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})
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browser.on('closed', () => {
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let index = subWindow.findIndex(item => item.name == name);
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if (index > -1) {
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subWindow.splice(index, 1)
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}
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})
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subWindow.push({ name, browser })
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}
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const originalUA = browser.webContents.session.getUserAgent() || browser.webContents.getUserAgent()
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browser.webContents.setUserAgent(originalUA + " SubTaskWindow/" + process.platform + "/" + os.arch() + "/1.0" + (args.userAgent ? (" " + args.userAgent) : ""));
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browser.webContents.setWindowOpenHandler(({url}) => {
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openExternal(url)
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return {action: 'deny'}
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})
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if (devloadUrl) {
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browser.loadURL(devloadUrl + '#' + (args.hash || args.path)).then(_ => {
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})
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} else {
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browser.loadFile('./public/index.html', {
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hash: args.hash || args.path
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}).then(_ => {
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})
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}
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}
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const getTheLock = app.requestSingleInstanceLock()
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if (!getTheLock) {
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app.quit()
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} else {
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app.on('second-instance', () => {
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utils.setShowWindow(mainWindow)
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})
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app.on('ready', () => {
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// 创建主窗口
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createMainWindow()
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// 创建托盘
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if (['darwin', 'win32'].includes(process.platform) && utils.isJson(config.trayIcon)) {
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mainTray = new Tray(path.join(__dirname, config.trayIcon[devloadUrl ? 'dev' : 'prod'][process.platform === 'darwin' ? 'mac' : 'win']));
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mainTray.on('click', () => {
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utils.setShowWindow(mainWindow)
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})
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mainTray.setToolTip(config.name)
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if (process.platform === 'win32') {
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const trayMenu = Menu.buildFromTemplate([{
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label: '显示',
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click: () => {
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utils.setShowWindow(mainWindow)
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}
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}, {
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label: '退出',
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click: () => {
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app.quit()
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}
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}])
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mainTray.setContextMenu(trayMenu)
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}
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}
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//
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if (process.platform === 'win32') {
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app.setAppUserModelId(config.name)
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}
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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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createMainWindow()
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} else if (!mainWindow.isVisible()) {
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mainWindow.show()
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}
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})
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app.on('window-all-closed', () => {
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if (willQuitApp || process.platform !== 'darwin') {
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app.quit()
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}
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})
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app.on('before-quit', () => {
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willQuitApp = true
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})
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app.on('browser-window-blur', () => {
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mainWindow.webContents.send("browserWindowBlur", {})
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})
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app.on('browser-window-focus', () => {
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mainWindow.webContents.send("browserWindowFocus", {})
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})
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/**
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* 打开文件
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* @param args {path}
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*/
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ipcMain.on('openFile', (event, args) => {
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utils.openFile(args.path)
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event.returnValue = "ok"
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})
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/**
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* 退出客户端
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*/
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ipcMain.on('windowQuit', (event) => {
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event.returnValue = "ok"
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app.quit();
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})
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/**
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* 创建路由窗口
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* @param args {path, ?}
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*/
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ipcMain.on('windowRouter', (event, args) => {
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createSubWindow(args)
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event.returnValue = "ok"
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})
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/**
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* 隐藏窗口（mac、win隐藏，其他关闭）
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*/
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ipcMain.on('windowHidden', (event) => {
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if (['darwin', 'win32'].includes(process.platform)) {
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app.hide();
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} else {
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app.quit();
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}
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event.returnValue = "ok"
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})
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/**
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* 关闭窗口
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*/
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ipcMain.on('windowClose', (event) => {
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const win = BrowserWindow.fromWebContents(event.sender);
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win.close()
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event.returnValue = "ok"
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})
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/**
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* 销毁窗口
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*/
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ipcMain.on('windowDestroy', (event) => {
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const win = BrowserWindow.fromWebContents(event.sender);
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win.destroy()
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event.returnValue = "ok"
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})
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/**
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* 关闭所有子窗口
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*/
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ipcMain.on('subWindowCloseAll', (event) => {
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subWindow.some(({browser}) => {
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browser && browser.close()
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})
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event.returnValue = "ok"
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})
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/**
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* 销毁所有子窗口
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*/
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ipcMain.on('subWindowDestroyAll', (event) => {
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subWindow.some(({browser}) => {
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browser && browser.destroy()
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})
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event.returnValue = "ok"
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})
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/**
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* 设置窗口尺寸
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* @param args {width, height, autoZoom, minWidth, minHeight, maxWidth, maxHeight}
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*/
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ipcMain.on('windowSize', (event, args) => {
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const win = BrowserWindow.fromWebContents(event.sender);
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if (win) {
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if (args.width || args.height) {
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let [w, h] = win.getSize()
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const width = args.width || w
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const height = args.height || h
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win.setSize(width, height, args.animate === true)
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//
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if (args.autoZoom === true) {
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let move = false
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let [x, y] = win.getPosition()
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if (Math.abs(width - w) > 10) {
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move = true
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x -= (width - w) / 2
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}
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if (Math.abs(height - h) > 10) {
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move = true
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y -= (height - h) / 2
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}
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if (move) {
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win.setPosition(Math.max(0, Math.floor(x)), Math.max(0, Math.floor(y)))
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}
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}
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}
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if (args.minWidth || args.minHeight) {
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win.setMinimumSize(args.minWidth || win.getMinimumSize()[0], args.minHeight || win.getMinimumSize()[1])
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}
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if (args.maxWidth || args.maxHeight) {
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win.setMaximumSize(args.maxWidth || win.getMaximumSize()[0], args.maxHeight || win.getMaximumSize()[1])
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}
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}
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event.returnValue = "ok"
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})
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/**
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* 设置窗口最小尺寸
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* @param args {minWidth, minHeight}
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*/
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ipcMain.on('windowMinSize', (event, args) => {
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const win = BrowserWindow.fromWebContents(event.sender);
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if (win) {
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win.setMinimumSize(args.minWidth || win.getMinimumSize()[0], args.minHeight || win.getMinimumSize()[1])
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}
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event.returnValue = "ok"
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})
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/**
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* 设置窗口最大尺寸
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* @param args {maxWidth, maxHeight}
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*/
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ipcMain.on('windowMaxSize', (event, args) => {
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const win = BrowserWindow.fromWebContents(event.sender);
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if (win) {
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win.setMaximumSize(args.maxWidth || win.getMaximumSize()[0], args.maxHeight || win.getMaximumSize()[1])
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}
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event.returnValue = "ok"
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})
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/**
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* 窗口居中
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*/
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ipcMain.on('windowCenter', (event) => {
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const win = BrowserWindow.fromWebContents(event.sender);
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if (win) {
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win.center();
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}
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event.returnValue = "ok"
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})
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/**
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* 窗口最大化或恢复
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*/
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ipcMain.on('windowMax', (event) => {
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const win = BrowserWindow.fromWebContents(event.sender);
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if (win.isMaximized()) {
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win.restore();
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} else {
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win.maximize();
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}
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event.returnValue = "ok"
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})
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/**
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* 给主窗口发送信息
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* @param args {channel, data}
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*/
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ipcMain.on('sendForwardMain', (event, args) => {
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if (mainWindow) {
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mainWindow.webContents.send(args.channel, args.data)
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}
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event.returnValue = "ok"
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})
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/**
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* 设置Dock标记（window闪烁、macos标记）
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* @param args
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*/
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ipcMain.on('setDockBadge', (event, args) => {
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if (process.platform === 'win32') {
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// Window flash
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if (!mainWindow.isFocused()) {
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mainWindow.once('focus', () => mainWindow.flashFrame(false))
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mainWindow.flashFrame(true)
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}
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return;
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}
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if (process.platform !== 'darwin') {
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// Mac only
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return;
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}
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let num = args;
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let tray = true;
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if (utils.isJson(args)) {
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num = args.num
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tray = !!args.tray
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}
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let text = typeof num === "string" ? num : (utils.runNum(num) > 0 ? String(num) : "")
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app.dock.setBadge(text)
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if (tray && mainTray) {
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mainTray.setTitle(text)
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}
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event.returnValue = "ok"
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})
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/**
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* 复制Base64图片
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* @param args
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*/
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ipcMain.on('copyBase64Image', (event, args) => {
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const { base64 } = args;
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if (base64) {
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const img = nativeImage.createFromDataURL(base64)
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clipboard.writeImage(img)
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}
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event.returnValue = "ok"
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})
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//================================================================
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// Update
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//================================================================
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let autoUpdating = 0
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autoUpdater.logger = log
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autoUpdater.autoDownload = false
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autoUpdater.autoInstallOnAppQuit = true
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autoUpdater.on('update-available', info => {
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mainWindow.webContents.send("updateAvailable", info)
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})
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autoUpdater.on('update-downloaded', info => {
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mainWindow.webContents.send("updateDownloaded", info)
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})
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/**
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* 检查更新
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*/
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ipcMain.on('updateCheckAndDownload', (event, args) => {
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event.returnValue = "ok"
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if (autoUpdating + 3600 > utils.Time()) {
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return // 限制1小时仅执行一次
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}
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if (args.provider) {
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autoUpdater.setFeedURL(args)
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}
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autoUpdater.checkForUpdates().then(info => {
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if (utils.compareVersion(config.version, info.updateInfo.version) >= 0) {
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return
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}
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if (args.apiVersion) {
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if (utils.compareVersion(info.updateInfo.version, args.apiVersion) <= 0) {
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// 客户端版本 <= 接口版本
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autoUpdating = utils.Time()
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autoUpdater.downloadUpdate().then(_ => {}).catch(_ => {})
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}
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} else {
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autoUpdating = utils.Time()
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autoUpdater.downloadUpdate().then(_ => {}).catch(_ => {})
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}
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})
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})
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/**
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* 退出并安装更新
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*/
|
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ipcMain.on('updateQuitAndInstall', (event) => {
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event.returnValue = "ok"
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willQuitApp = true
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setTimeout(() => autoUpdater.quitAndInstall(true, true), 1)
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})
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//================================================================
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// Pdf export
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//================================================================
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const MICRON_TO_PIXEL = 264.58 //264.58 micron = 1 pixel
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const PNG_CHUNK_IDAT = 1229209940;
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const LARGE_IMAGE_AREA = 30000000;
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//NOTE: Key length must not be longer than 79 bytes (not checked)
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function writePngWithText(origBuff, key, text, compressed, base64encoded) {
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let isDpi = key == 'dpi';
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let inOffset = 0;
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let outOffset = 0;
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let data = text;
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let dataLen = isDpi ? 9 : key.length + data.length + 1; //we add 1 zeros with non-compressed data, for pHYs it's 2 of 4-byte-int + 1 byte
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//prepare compressed data to get its size
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if (compressed) {
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data = zlib.deflateRawSync(encodeURIComponent(text));
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dataLen = key.length + data.length + 2; //we add 2 zeros with compressed data
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}
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let outBuff = Buffer.allocUnsafe(origBuff.length + dataLen + 4); //4 is the header size "zTXt", "tEXt" or "pHYs"
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try {
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let magic1 = origBuff.readUInt32BE(inOffset);
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inOffset += 4;
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let magic2 = origBuff.readUInt32BE(inOffset);
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inOffset += 4;
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if (magic1 != 0x89504e47 && magic2 != 0x0d0a1a0a) {
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throw new Error("PNGImageDecoder0");
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}
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outBuff.writeUInt32BE(magic1, outOffset);
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outOffset += 4;
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outBuff.writeUInt32BE(magic2, outOffset);
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outOffset += 4;
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} catch (e) {
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log.error(e.message, {stack: e.stack});
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throw new Error("PNGImageDecoder1");
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}
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try {
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while (inOffset < origBuff.length) {
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let length = origBuff.readInt32BE(inOffset);
|
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inOffset += 4;
|
|
let type = origBuff.readInt32BE(inOffset)
|
|
inOffset += 4;
|
|
|
|
if (type == PNG_CHUNK_IDAT) {
|
|
// Insert zTXt chunk before IDAT chunk
|
|
outBuff.writeInt32BE(dataLen, outOffset);
|
|
outOffset += 4;
|
|
|
|
let typeSignature = isDpi ? 'pHYs' : (compressed ? "zTXt" : "tEXt");
|
|
outBuff.write(typeSignature, outOffset);
|
|
|
|
outOffset += 4;
|
|
|
|
if (isDpi) {
|
|
let dpm = Math.round(parseInt(text) / 0.0254) || 3937; //One inch is equal to exactly 0.0254 meters. 3937 is 100dpi
|
|
|
|
outBuff.writeInt32BE(dpm, outOffset);
|
|
outBuff.writeInt32BE(dpm, outOffset + 4);
|
|
outBuff.writeInt8(1, outOffset + 8);
|
|
outOffset += 9;
|
|
|
|
data = Buffer.allocUnsafe(9);
|
|
data.writeInt32BE(dpm, 0);
|
|
data.writeInt32BE(dpm, 4);
|
|
data.writeInt8(1, 8);
|
|
} else {
|
|
outBuff.write(key, outOffset);
|
|
outOffset += key.length;
|
|
outBuff.writeInt8(0, outOffset);
|
|
outOffset++;
|
|
|
|
if (compressed) {
|
|
outBuff.writeInt8(0, outOffset);
|
|
outOffset++;
|
|
data.copy(outBuff, outOffset);
|
|
} else {
|
|
outBuff.write(data, outOffset);
|
|
}
|
|
|
|
outOffset += data.length;
|
|
}
|
|
|
|
let crcVal = 0xffffffff;
|
|
crcVal = crc.crcjam(typeSignature, crcVal);
|
|
crcVal = crc.crcjam(data, crcVal);
|
|
|
|
// CRC
|
|
outBuff.writeInt32BE(crcVal ^ 0xffffffff, outOffset);
|
|
outOffset += 4;
|
|
|
|
// Writes the IDAT chunk after the zTXt
|
|
outBuff.writeInt32BE(length, outOffset);
|
|
outOffset += 4;
|
|
outBuff.writeInt32BE(type, outOffset);
|
|
outOffset += 4;
|
|
|
|
origBuff.copy(outBuff, outOffset, inOffset);
|
|
|
|
// Encodes the buffer using base64 if requested
|
|
return base64encoded ? outBuff.toString('base64') : outBuff;
|
|
}
|
|
|
|
outBuff.writeInt32BE(length, outOffset);
|
|
outOffset += 4;
|
|
outBuff.writeInt32BE(type, outOffset);
|
|
outOffset += 4;
|
|
|
|
origBuff.copy(outBuff, outOffset, inOffset, inOffset + length + 4);// +4 to move past the crc
|
|
|
|
inOffset += length + 4;
|
|
outOffset += length + 4;
|
|
}
|
|
} catch (e) {
|
|
log.error(e.message, {stack: e.stack});
|
|
throw e;
|
|
}
|
|
}
|
|
|
|
//TODO Create a lightweight html file similar to export3.html for exporting to vsdx
|
|
function exportVsdx(event, args, directFinalize) {
|
|
|
|
let win = new BrowserWindow({
|
|
width: 1280,
|
|
height: 800,
|
|
show: false,
|
|
webPreferences: {
|
|
preload: path.join(__dirname, 'electron-preload.js'),
|
|
webSecurity: true,
|
|
nodeIntegration: true,
|
|
contextIsolation: true,
|
|
nativeWindowOpen: true
|
|
},
|
|
})
|
|
|
|
let loadEvtCount = 0;
|
|
|
|
function loadFinished() {
|
|
loadEvtCount++;
|
|
|
|
if (loadEvtCount == 2) {
|
|
win.webContents.send('export-vsdx', args);
|
|
|
|
ipcMain.once('export-vsdx-finished', (evt, data) => {
|
|
let hasError = false;
|
|
|
|
if (data == null) {
|
|
hasError = true;
|
|
}
|
|
|
|
//Set finalize here since it is call in the reply below
|
|
function finalize() {
|
|
win.destroy();
|
|
}
|
|
|
|
if (directFinalize === true) {
|
|
event.finalize = finalize;
|
|
} else {
|
|
//Destroy the window after response being received by caller
|
|
ipcMain.once('export-finalize', finalize);
|
|
}
|
|
|
|
if (hasError) {
|
|
event.reply('export-error');
|
|
} else {
|
|
event.reply('export-success', data);
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
//Order of these two events is not guaranteed, so wait for them async.
|
|
//TOOD There is still a chance we catch another window 'app-load-finished' if user created multiple windows quickly
|
|
ipcMain.once('app-load-finished', loadFinished);
|
|
win.webContents.on('did-finish-load', loadFinished);
|
|
}
|
|
|
|
async function mergePdfs(pdfFiles, xml) {
|
|
//Pass throgh single files
|
|
if (pdfFiles.length == 1 && xml == null) {
|
|
return pdfFiles[0];
|
|
}
|
|
|
|
try {
|
|
const pdfDoc = await PDFDocument.create();
|
|
pdfDoc.setCreator(config.name);
|
|
|
|
if (xml != null) {
|
|
//Embed diagram XML as file attachment
|
|
await pdfDoc.attach(Buffer.from(xml).toString('base64'), config.name + '.xml', {
|
|
mimeType: 'application/vnd.jgraph.mxfile',
|
|
description: config.name + ' Content'
|
|
});
|
|
}
|
|
|
|
for (let i = 0; i < pdfFiles.length; i++) {
|
|
const pdfFile = await PDFDocument.load(pdfFiles[i].buffer);
|
|
const pages = await pdfDoc.copyPages(pdfFile, pdfFile.getPageIndices());
|
|
pages.forEach(p => pdfDoc.addPage(p));
|
|
}
|
|
|
|
const pdfBytes = await pdfDoc.save();
|
|
return Buffer.from(pdfBytes);
|
|
} catch (e) {
|
|
throw new Error('Error during PDF combination: ' + e.message);
|
|
}
|
|
}
|
|
|
|
//TODO Use canvas to export images if math is not used to speedup export (no capturePage). Requires change to export3.html also
|
|
function exportDiagram(event, args, directFinalize) {
|
|
if (args.format == 'vsdx') {
|
|
exportVsdx(event, args, directFinalize);
|
|
return;
|
|
}
|
|
|
|
let browser = null;
|
|
|
|
try {
|
|
browser = new BrowserWindow({
|
|
webPreferences: {
|
|
preload: path.join(__dirname, 'electron-preload.js'),
|
|
backgroundThrottling: false,
|
|
contextIsolation: true,
|
|
nativeWindowOpen: true
|
|
},
|
|
show: false,
|
|
frame: false,
|
|
enableLargerThanScreen: true,
|
|
transparent: args.format == 'png' && (args.bg == null || args.bg == 'none'),
|
|
});
|
|
|
|
browser.loadURL(`file://${__dirname}/export3.html`);
|
|
|
|
const contents = browser.webContents;
|
|
let pageByPage = (args.format == 'pdf' && !args.print), from, to, pdfs;
|
|
|
|
if (pageByPage) {
|
|
from = args.allPages ? 0 : parseInt(args.from || 0);
|
|
to = args.allPages ? 1000 : parseInt(args.to || 1000) + 1; //The 'to' will be corrected later
|
|
pdfs = [];
|
|
|
|
args.from = from;
|
|
args.to = from;
|
|
args.allPages = false;
|
|
}
|
|
|
|
contents.on('did-finish-load', function () {
|
|
//Set finalize here since it is call in the reply below
|
|
function finalize() {
|
|
browser.destroy();
|
|
}
|
|
|
|
if (directFinalize === true) {
|
|
event.finalize = finalize;
|
|
} else {
|
|
//Destroy the window after response being received by caller
|
|
ipcMain.once('export-finalize', finalize);
|
|
}
|
|
|
|
function renderingFinishHandler(evt, renderInfo) {
|
|
if (renderInfo == null) {
|
|
event.reply('export-error');
|
|
return;
|
|
}
|
|
|
|
let pageCount = renderInfo.pageCount, bounds = null;
|
|
//For some reason, Electron 9 doesn't send this object as is without stringifying. Usually when variable is external to function own scope
|
|
try {
|
|
bounds = JSON.parse(renderInfo.bounds);
|
|
} catch (e) {
|
|
bounds = null;
|
|
}
|
|
|
|
let pdfOptions = {pageSize: 'A4'};
|
|
let hasError = false;
|
|
|
|
if (bounds == null || bounds.width < 5 || bounds.height < 5) //very small page size never return from printToPDF
|
|
{
|
|
//A workaround to detect errors in the input file or being empty file
|
|
hasError = true;
|
|
} else {
|
|
//Chrome generates Pdf files larger than requested pixels size and requires scaling
|
|
let fixingScale = 0.959;
|
|
|
|
let w = Math.ceil(bounds.width * fixingScale);
|
|
|
|
// +0.1 fixes cases where adding 1px below is not enough
|
|
// Increase this if more cropped PDFs have extra empty pages
|
|
let h = Math.ceil(bounds.height * fixingScale + 0.1);
|
|
|
|
pdfOptions = {
|
|
printBackground: true,
|
|
pageSize: {
|
|
width: w * MICRON_TO_PIXEL,
|
|
height: (h + 2) * MICRON_TO_PIXEL //the extra 2 pixels to prevent adding an extra empty page
|
|
},
|
|
marginsType: 1 // no margin
|
|
}
|
|
}
|
|
|
|
let base64encoded = args.base64 == '1';
|
|
|
|
if (hasError) {
|
|
event.reply('export-error');
|
|
} else if (args.format == 'png' || args.format == 'jpg' || args.format == 'jpeg') {
|
|
//Adds an extra pixel to prevent scrollbars from showing
|
|
let newBounds = {
|
|
width: Math.ceil(bounds.width + bounds.x) + 1,
|
|
height: Math.ceil(bounds.height + bounds.y) + 1
|
|
};
|
|
browser.setBounds(newBounds);
|
|
|
|
//TODO The browser takes sometime to show the graph (also after resize it takes some time to render)
|
|
// 1 sec is most probably enough (for small images, 5 for large ones) BUT not a stable solution
|
|
setTimeout(function () {
|
|
browser.capturePage().then(function (img) {
|
|
//Image is double the given bounds, so resize is needed!
|
|
let tScale = 1;
|
|
|
|
//If user defined width and/or height, enforce it precisely here. Height override width
|
|
if (args.h) {
|
|
tScale = args.h / newBounds.height;
|
|
} else if (args.w) {
|
|
tScale = args.w / newBounds.width;
|
|
}
|
|
|
|
newBounds.width *= tScale;
|
|
newBounds.height *= tScale;
|
|
img = img.resize(newBounds);
|
|
|
|
let data = args.format == 'png' ? img.toPNG() : img.toJPEG(args.jpegQuality || 90);
|
|
|
|
if (args.dpi != null && args.format == 'png') {
|
|
data = writePngWithText(data, 'dpi', args.dpi);
|
|
}
|
|
|
|
if (args.embedXml == "1" && args.format == 'png') {
|
|
data = writePngWithText(data, "mxGraphModel", args.xml, true,
|
|
base64encoded);
|
|
} else {
|
|
if (base64encoded) {
|
|
data = data.toString('base64');
|
|
}
|
|
}
|
|
|
|
event.reply('export-success', data);
|
|
});
|
|
}, bounds.width * bounds.height < LARGE_IMAGE_AREA ? 1000 : 5000);
|
|
} else if (args.format == 'pdf') {
|
|
if (args.print) {
|
|
pdfOptions = {
|
|
scaleFactor: args.pageScale,
|
|
printBackground: true,
|
|
pageSize: {
|
|
width: args.pageWidth * MICRON_TO_PIXEL,
|
|
//This height adjustment fixes the output. TODO Test more cases
|
|
height: (args.pageHeight * 1.025) * MICRON_TO_PIXEL
|
|
},
|
|
marginsType: 1 // no margin
|
|
};
|
|
|
|
contents.print(pdfOptions, (success, errorType) => {
|
|
//Consider all as success
|
|
event.reply('export-success', {});
|
|
});
|
|
} else {
|
|
contents.printToPDF(pdfOptions).then(async (data) => {
|
|
pdfs.push(data);
|
|
to = to > pageCount ? pageCount : to;
|
|
from++;
|
|
|
|
if (from < to) {
|
|
args.from = from;
|
|
args.to = from;
|
|
ipcMain.once('render-finished', renderingFinishHandler);
|
|
contents.send('render', args);
|
|
} else {
|
|
data = await mergePdfs(pdfs, args.embedXml == '1' ? args.xml : null);
|
|
event.reply('export-success', data);
|
|
}
|
|
})
|
|
.catch((error) => {
|
|
event.reply('export-error', error);
|
|
});
|
|
}
|
|
} else if (args.format == 'svg') {
|
|
contents.send('get-svg-data');
|
|
|
|
ipcMain.once('svg-data', (evt, data) => {
|
|
event.reply('export-success', data);
|
|
});
|
|
} else {
|
|
event.reply('export-error', 'Error: Unsupported format');
|
|
}
|
|
}
|
|
|
|
ipcMain.once('render-finished', renderingFinishHandler);
|
|
|
|
if (args.format == 'xml') {
|
|
ipcMain.once('xml-data', (evt, data) => {
|
|
event.reply('export-success', data);
|
|
});
|
|
|
|
ipcMain.once('xml-data-error', () => {
|
|
event.reply('export-error');
|
|
});
|
|
}
|
|
|
|
args.border = args.border || 0;
|
|
args.scale = args.scale || 1;
|
|
|
|
contents.send('render', args);
|
|
});
|
|
} catch (e) {
|
|
if (browser != null) {
|
|
browser.destroy();
|
|
}
|
|
|
|
event.reply('export-error', e);
|
|
console.log('export-error', e);
|
|
}
|
|
}
|
|
|
|
ipcMain.on('export', exportDiagram);
|
|
|
|
//================================================================
|
|
// Renderer Helper functions
|
|
//================================================================
|
|
|
|
const {COPYFILE_EXCL} = fs.constants;
|
|
const DRAFT_PREFEX = '~$';
|
|
const DRAFT_EXT = '.dtmp';
|
|
const BKP_PREFEX = '~$';
|
|
const BKP_EXT = '.bkp';
|
|
|
|
function isConflict(origStat, stat) {
|
|
return stat != null && origStat != null && stat.mtimeMs != origStat.mtimeMs;
|
|
}
|
|
|
|
function getDraftFileName(fileObject) {
|
|
let filePath = fileObject.path;
|
|
let draftFileName = '', counter = 1, uniquePart = '';
|
|
|
|
do {
|
|
draftFileName = path.join(path.dirname(filePath), DRAFT_PREFEX + path.basename(filePath) + uniquePart + DRAFT_EXT);
|
|
uniquePart = '_' + counter++;
|
|
} while (fs.existsSync(draftFileName));
|
|
|
|
return draftFileName;
|
|
}
|
|
|
|
async function getFileDrafts(fileObject) {
|
|
let filePath = fileObject.path;
|
|
let draftsPaths = [], drafts = [], draftFileName, counter = 1, uniquePart = '';
|
|
|
|
do {
|
|
draftsPaths.push(draftFileName);
|
|
draftFileName = path.join(path.dirname(filePath), DRAFT_PREFEX + path.basename(filePath) + uniquePart + DRAFT_EXT);
|
|
uniquePart = '_' + counter++;
|
|
} while (fs.existsSync(draftFileName)); //TODO this assume continuous drafts names
|
|
|
|
for (let i = 1; i < draftsPaths.length; i++) {
|
|
try {
|
|
let stat = await fsProm.lstat(draftsPaths[i]);
|
|
drafts.push({
|
|
data: await fsProm.readFile(draftsPaths[i], 'utf8'),
|
|
created: stat.ctimeMs,
|
|
modified: stat.mtimeMs,
|
|
path: draftsPaths[i]
|
|
});
|
|
} catch (e) {
|
|
} // Ignore
|
|
}
|
|
|
|
return drafts;
|
|
}
|
|
|
|
async function saveDraft(fileObject, data) {
|
|
if (data == null || data.length == 0) {
|
|
throw new Error('empty data');
|
|
} else {
|
|
let draftFileName = fileObject.draftFileName || getDraftFileName(fileObject);
|
|
await fsProm.writeFile(draftFileName, data, 'utf8');
|
|
return draftFileName;
|
|
}
|
|
}
|
|
|
|
async function saveFile(fileObject, data, origStat, overwrite, defEnc) {
|
|
let retryCount = 0;
|
|
let backupCreated = false;
|
|
let bkpPath = path.join(path.dirname(fileObject.path), BKP_PREFEX + path.basename(fileObject.path) + BKP_EXT);
|
|
|
|
let writeFile = async function () {
|
|
if (data == null || data.length == 0) {
|
|
throw new Error('empty data');
|
|
} else {
|
|
let writeEnc = defEnc || fileObject.encoding;
|
|
|
|
await fsProm.writeFile(fileObject.path, data, writeEnc);
|
|
let stat2 = await fsProm.stat(fileObject.path);
|
|
let writtenData = await fsProm.readFile(fileObject.path, writeEnc);
|
|
|
|
if (data != writtenData) {
|
|
retryCount++;
|
|
|
|
if (retryCount < 3) {
|
|
return await writeFile();
|
|
} else {
|
|
throw new Error('all saving trials failed');
|
|
}
|
|
} else {
|
|
if (backupCreated) {
|
|
fs.unlink(bkpPath, (err) => {
|
|
}); //Ignore errors!
|
|
}
|
|
|
|
return stat2;
|
|
}
|
|
}
|
|
};
|
|
|
|
async function doSaveFile() {
|
|
try {
|
|
await fsProm.copyFile(fileObject.path, bkpPath, COPYFILE_EXCL);
|
|
backupCreated = true;
|
|
} catch (e) {
|
|
} //Ignore
|
|
|
|
return await writeFile();
|
|
}
|
|
|
|
if (overwrite) {
|
|
return await doSaveFile();
|
|
} else {
|
|
let stat = fs.existsSync(fileObject.path) ?
|
|
await fsProm.stat(fileObject.path) : null;
|
|
|
|
if (stat && isConflict(origStat, stat)) {
|
|
new Error('conflict');
|
|
} else {
|
|
return await doSaveFile();
|
|
}
|
|
}
|
|
}
|
|
|
|
async function writeFile(path, data, enc) {
|
|
return await fsProm.writeFile(path, data, enc);
|
|
}
|
|
|
|
function getAppDataFolder() {
|
|
try {
|
|
let appDataDir = app.getPath('appData');
|
|
let drawioDir = appDataDir + '/' + config.name;
|
|
|
|
if (!fs.existsSync(drawioDir)) //Usually this dir already exists
|
|
{
|
|
fs.mkdirSync(drawioDir);
|
|
}
|
|
|
|
return drawioDir;
|
|
} catch (e) {
|
|
}
|
|
|
|
return '.';
|
|
}
|
|
|
|
function getDocumentsFolder() {
|
|
try {
|
|
return app.getPath('documents');
|
|
} catch (e) {
|
|
}
|
|
|
|
return '.';
|
|
}
|
|
|
|
function checkFileExists(pathParts) {
|
|
let filePath = path.join(...pathParts);
|
|
return {exists: fs.existsSync(filePath), path: filePath};
|
|
}
|
|
|
|
async function showOpenDialog(defaultPath, filters, properties) {
|
|
return dialog.showOpenDialogSync({
|
|
defaultPath: defaultPath,
|
|
filters: filters,
|
|
properties: properties
|
|
});
|
|
}
|
|
|
|
async function showSaveDialog(defaultPath, filters) {
|
|
return dialog.showSaveDialogSync({
|
|
defaultPath: defaultPath,
|
|
filters: filters
|
|
});
|
|
}
|
|
|
|
async function installPlugin(filePath) {
|
|
let pluginsDir = path.join(getAppDataFolder(), '/plugins');
|
|
|
|
if (!fs.existsSync(pluginsDir)) {
|
|
fs.mkdirSync(pluginsDir);
|
|
}
|
|
|
|
let pluginName = path.basename(filePath);
|
|
let dstFile = path.join(pluginsDir, pluginName);
|
|
|
|
if (fs.existsSync(dstFile)) {
|
|
throw new Error('fileExists');
|
|
} else {
|
|
await fsProm.copyFile(filePath, dstFile);
|
|
}
|
|
|
|
return {pluginName: pluginName, selDir: path.dirname(filePath)};
|
|
}
|
|
|
|
function uninstallPlugin(plugin) {
|
|
let pluginsFile = path.join(getAppDataFolder(), '/plugins', plugin);
|
|
|
|
if (fs.existsSync(pluginsFile)) {
|
|
fs.unlinkSync(pluginsFile);
|
|
}
|
|
return null
|
|
}
|
|
|
|
function dirname(path_p) {
|
|
return path.dirname(path_p);
|
|
}
|
|
|
|
async function readFile(filename, encoding) {
|
|
return await fsProm.readFile(filename, encoding);
|
|
}
|
|
|
|
async function fileStat(file) {
|
|
return await fsProm.stat(file);
|
|
}
|
|
|
|
async function isFileWritable(file) {
|
|
try {
|
|
await fsProm.access(file, fs.constants.W_OK);
|
|
return true;
|
|
} catch (e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
function clipboardAction(method, data) {
|
|
if (method == 'writeText') {
|
|
clipboard.writeText(data);
|
|
} else if (method == 'readText') {
|
|
return clipboard.readText();
|
|
} else if (method == 'writeImage') {
|
|
clipboard.write({
|
|
image:
|
|
nativeImage.createFromDataURL(data.dataUrl), html: '<img src="' +
|
|
data.dataUrl + '" width="' + data.w + '" height="' + data.h + '">'
|
|
});
|
|
}
|
|
}
|
|
|
|
async function deleteFile(file) {
|
|
await fsProm.unlink(file);
|
|
}
|
|
|
|
function windowAction(method) {
|
|
let win = BrowserWindow.getFocusedWindow();
|
|
|
|
if (win) {
|
|
if (method == 'minimize') {
|
|
win.minimize();
|
|
} else if (method == 'maximize') {
|
|
win.maximize();
|
|
} else if (method == 'unmaximize') {
|
|
win.unmaximize();
|
|
} else if (method == 'close') {
|
|
win.close();
|
|
} else if (method == 'isMaximized') {
|
|
return win.isMaximized();
|
|
} else if (method == 'removeAllListeners') {
|
|
win.removeAllListeners();
|
|
}
|
|
}
|
|
}
|
|
|
|
function openExternal(url) {
|
|
shell.openExternal(url).then(() => {}).catch(() => {});
|
|
return null
|
|
}
|
|
|
|
function watchFile(path) {
|
|
let win = BrowserWindow.getFocusedWindow();
|
|
|
|
if (win) {
|
|
fs.watchFile(path, (curr, prev) => {
|
|
try {
|
|
win.webContents.send('fileChanged', {
|
|
path: path,
|
|
curr: curr,
|
|
prev: prev
|
|
});
|
|
} catch (e) {
|
|
} // Ignore
|
|
});
|
|
}
|
|
return null
|
|
}
|
|
|
|
function unwatchFile(path) {
|
|
fs.unwatchFile(path);
|
|
return null
|
|
}
|
|
|
|
ipcMain.on("rendererReq", async (event, args) => {
|
|
try {
|
|
let ret = null;
|
|
|
|
switch (args.action) {
|
|
case 'saveFile':
|
|
ret = await saveFile(args.fileObject, args.data, args.origStat, args.overwrite, args.defEnc);
|
|
break;
|
|
case 'writeFile':
|
|
ret = await writeFile(args.path, args.data, args.enc);
|
|
break;
|
|
case 'saveDraft':
|
|
ret = await saveDraft(args.fileObject, args.data);
|
|
break;
|
|
case 'getFileDrafts':
|
|
ret = await getFileDrafts(args.fileObject);
|
|
break;
|
|
case 'getAppDataFolder':
|
|
ret = getAppDataFolder();
|
|
break;
|
|
case 'getDocumentsFolder':
|
|
ret = await getDocumentsFolder();
|
|
break;
|
|
case 'checkFileExists':
|
|
ret = checkFileExists(args.pathParts);
|
|
break;
|
|
case 'showOpenDialog':
|
|
ret = await showOpenDialog(args.defaultPath, args.filters, args.properties);
|
|
break;
|
|
case 'showSaveDialog':
|
|
ret = await showSaveDialog(args.defaultPath, args.filters);
|
|
break;
|
|
case 'installPlugin':
|
|
ret = await installPlugin(args.filePath);
|
|
break;
|
|
case 'uninstallPlugin':
|
|
ret = await uninstallPlugin(args.plugin);
|
|
break;
|
|
case 'dirname':
|
|
ret = dirname(args.path);
|
|
break;
|
|
case 'readFile':
|
|
ret = await readFile(args.filename, args.encoding);
|
|
break;
|
|
case 'clipboardAction':
|
|
ret = clipboardAction(args.method, args.data);
|
|
break;
|
|
case 'deleteFile':
|
|
ret = await deleteFile(args.file);
|
|
break;
|
|
case 'fileStat':
|
|
ret = await fileStat(args.file);
|
|
break;
|
|
case 'isFileWritable':
|
|
ret = await isFileWritable(args.file);
|
|
break;
|
|
case 'windowAction':
|
|
ret = windowAction(args.method);
|
|
break;
|
|
case 'openExternal':
|
|
ret = await openExternal(args.url);
|
|
break;
|
|
case 'watchFile':
|
|
ret = await watchFile(args.path);
|
|
break;
|
|
case 'unwatchFile':
|
|
ret = await unwatchFile(args.path);
|
|
break;
|
|
}
|
|
|
|
event.reply('mainResp', {success: true, data: ret, reqId: args.reqId});
|
|
} catch (e) {
|
|
event.reply('mainResp', {error: true, msg: e.message, e: e, reqId: args.reqId});
|
|
}
|
|
});
|