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main.js
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main.js
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const electron = require('electron')
const app = electron.app
const BrowserWindow = electron.BrowserWindow
const Menu = electron.Menu
const ipc = electron.ipcMain
const dialog = electron.dialog
const fs = require('fs')
const os = require('os')
const path = require('path')
const csvWriter = require('csv-writer')
const csvParser = require('csv-parser')
const xmldom = require('xmldom')
const nodes7 = require('nodes7');
const config = require('./config.js')
const constants = require('./constants.js')
var mainWindow
var aboutDialog
const configFileName = constants.appName + '.config'
var globalVars = {
controllerIp: '',
blockNumber: '',
yArrayAddress: '',
yStatusArrayAddress: '',
numberOfDotsAddress: '',
userPath: '',
homeDir: path.join(process.env.APPDATA, constants.appName),
debug: false,
}
const configVars = [
'controllerIp',
'blockNumber',
'yArrayAddress',
'yStatusArrayAddress',
'numberOfDotsAddress',
'userPath',
];
var weldingPathData = []
var simaticConn;
var simaticVars = {
}
loadConfig();
function createWindow () {
mainWindow = new BrowserWindow({
show: false,
width: 920,
height: 640,
webPreferences: {
preload: path.join(__dirname, 'preload.js'),
nodeIntegration: true
}
});
mainWindow.loadFile('index.html')
// Open the DevTools.
//mainWindow.webContents.openDevTools()
mainWindow.on('closed', function () {
mainWindow = null;
});
mainWindow.once('ready-to-show', () => {
mainWindow.show();
});
const template = [
{
label: '&Файл',
submenu: [
{
label: 'Загрузить...',
click: onLoadClick
},
{
label: 'Сохранить...',
click: onSaveClick
},
{
type: 'separator'
},
{
label: 'Выход',
click: onExitClick
}
]
},
{
label: '&Опции',
submenu: [
{
label: 'Настройки...',
click: openOptionsDialog
},
]
},
{
label: '&Справка',
submenu: [
{
label: 'О программе...',
click: onAboutClick
},
]
}
];
let menu = Menu.buildFromTemplate(template)
Menu.setApplicationMenu(menu)
ipc.on('read-path', (event, arg) => {
readPathFromSimatic(event.sender)
});
ipc.on('write-path', (event, arg) => {
writePathToSimatic(event.sender, arg)
});
ipc.on('get-global', (event, arg) => {
onGetGlobal(event, arg);
});
ipc.on('set-global', (event, arg) => {
onSetGlobal(event, arg);
});
ipc.on('open-options-dialog', openOptionsDialog);
ipc.on('close-about-dialog', closeAboutDialog);
}
app.on('ready', createWindow);
app.on('window-all-closed', function () {
if (process.platform !== 'darwin') app.quit()
});
app.on('activate', function () {
if (mainWindow === null) createWindow()
});
function checkSimaticAddresses() {
var showError = txt => {
mainWindow.send('open-error-dialog', txt);
};
var checkNumber = txt => {
var number = parseInt(txt);
return !(isNaN(number) || number < 0);
}
var selectText = txt => {
return '<span style="background:pink">"' + txt + '"</span>';
}
if ( !checkNumber(globalVars.blockNumber)) {
showError('Ошибка в номере блока: ' + selectText(globalVars.blockNumber) + '.');
}
else if ( !checkNumber(globalVars.numberOfDotsAddress) ) {
showError('Ошибка в адресе<br><b>"Количество точек"</b>: ' + selectText(globalVars.numberOfDotsAddress) + '.');
}
else if ( !checkNumber(globalVars.yArrayAddress) ) {
showError('Ошибка в адресе массива<br><b>"Точки"</b>: ' + selectText(globalVars.yArrayAddress) + '.');
}
else if ( !checkNumber(globalVars.yStatusArrayAddress) ) {
showError('Ошибка в адресе массива<br><b>"Статусы точек"</b>: ' + selectText(globalVars.yStatusArrayAddress) + '.');
}
else {
return true;
}
return false;
}
function buildSimaticVars() {
var block = 'DB' + parseInt(globalVars.blockNumber) + ',';
simaticVars.count =
block + 'INT' + parseInt(globalVars.numberOfDotsAddress);
var n = constants.dotsCountMax;
var i = 0;
while ( n ) {
var packetSize = constants.packetSize;
if (packetSize > n) {
packetSize = n;
}
simaticVars['yArr' + i] =
block + 'REAL' + (parseInt(globalVars.yArrayAddress) + i*4*constants.packetSize) + '.' + packetSize;
i++;
n -= packetSize;
}
simaticVars.yStatusArr =
block + 'BYTE' + parseInt(globalVars.yStatusArrayAddress) + '.' + (constants.dotsCountMax / 8);
}
function communicateWithSimatic(communicate, failed) {
function connect() {
simaticConn = new nodes7();
simaticConn.initiateConnection(
{
port: 102,
host: globalVars.controllerIp,
rack: 0,
slot: 2
},
connected
);
}
function connected(err) {
if ( err ) {
mainWindow.send('open-error-dialog',
'Не удалось установить соединение с контроллером.');
return;
}
simaticConn.setTranslationCB(tag => { return simaticVars[tag]; });
for (tag in simaticVars) {
simaticConn.addItems(tag);
}
communicate();
}
if ( simaticConn ) {
simaticConn.dropConnection( () => {
simaticConn = null;
connect();
});
}
else {
connect();
}
}
function readPathFromSimatic(sender) {
var valuesReady = function(err, values) {
if ( err ) {
mainWindow.send('open-error-dialog', "Не удалось считать с контроллера.");
return;
}
var count = values.count;
var i;
var yArr = [];
var y;
for (i = 0; ; i++) {
var arr = values['yArr' + i];
if ( !arr ) {
break;
}
for (y of arr) {
yArr.push(y);
}
}
var yStatusArr = values.yStatusArr;
var data = [];
var bitsIndex = 0;
var statusIndex = 0;
var status;
var statusBits;
for (i = 0; i < count; i++) {
y = yArr[i];
statusBits = yStatusArr[statusIndex];
status = 0;
if ( statusBits & (1 << (bitsIndex)) ) {
status = 1;
}
data.push( [y, status] );
bitsIndex++;
if ( bitsIndex == 8 ) {
bitsIndex = 0;
statusIndex++;
}
}
weldingPathData = data;
sender.send('read-path-reply', weldingPathData);
}
if ( !checkSimaticAddresses() ) {
return;
}
buildSimaticVars();
communicateWithSimatic(() => {
simaticConn.readAllItems(valuesReady);
});
}
function writePathToSimatic(sender, data) {
weldingPathData = data;
if ( !checkSimaticAddresses() ) {
return;
}
buildSimaticVars();
// build data
var yArr = [];
var yStatusArr = [];
var yStatus = 0;
var yStatusBitIndex = 0;
var item;
var n = constants.dotsCountMax;
var i;
for (item of weldingPathData) {
yArr.push( item[0] );
}
for (i = yArr.length; i < n; i++) {
yArr.push( 0 );
}
for (item of weldingPathData) {
yStatus >>= 1;
if ( item[1] ) {
yStatus |= 0x80;
}
yStatusBitIndex++;
if (yStatusBitIndex == 8) {
yStatusBitIndex = 0;
yStatusArr.push ( yStatus );
yStatus = 0;
}
}
if ( yStatusBitIndex ) {
yStatusArr.push( yStatus );
}
for (i = yStatusArr.length; i < n / 8; i++) {
yStatusArr.push( 0 );
}
var itemsNames = [
'count',
'yStatusArr',
];
var itemsData = [
weldingPathData.length,
yStatusArr,
];
var n = yArr.length;
var packetIndex = 0;
var index = 0;
while ( n ) {
var packetSize = constants.packetSize;
if ( packetSize > n ) {
packetSize = n;
}
var name = 'yArr' + packetIndex;
var data = [];
for (i = 0; i < packetSize; i++) {
data.push( yArr[index] );
index++;
}
itemsNames.push( name );
itemsData.push( data );
packetIndex++;
n -= packetSize;
}
var written = function(err) {
if ( err ) {
mainWindow.send('open-error-dialog', "Не удалось записать в контроллер.");
}
else {
mainWindow.send('open-write-success-dialog');
}
simaticConn.dropConnection(() => {
simaticConn = null;
});
}
var write = function() {
simaticConn.writeItems(
itemsNames,
itemsData,
written
);
}
communicateWithSimatic(write);
}
function openOptionsDialog() {
mainWindow.send('open-options-dialog');
}
function loadConfig() {
let configFilePath = path.join(globalVars.homeDir, configFileName);
let cfg = new config();
cfg.load(configFilePath);
for (key of configVars) {
globalVars[key] = cfg.get(key)||'';
}
}
function saveConfig() {
let configFolder = globalVars.homeDir;
if ( !fs.existsSync(configFolder) ) {
fs.mkdirSync(configFolder, {recursive: true});
}
let configFilePath = path.join(configFolder, configFileName);
let cfg = new config();
for (key of configVars) {
cfg.set(key, globalVars[key]);
}
cfg.save(path.join(configFolder, configFileName));
}
function onGetGlobal(event, args) {
var data = {};
for (item of args) {
data[item] = globalVars[item];
}
event.returnValue = data;
}
function onSetGlobal(event, args) {
for (item in args) {
if ( item in globalVars ) {
globalVars[item] = args[item];
}
}
event.returnValue = true;
saveConfig();
}
function onExitClick() {
mainWindow.close();
}
function onLoadClick() {
var defaultPath = globalVars.userPath;
dialog.showOpenDialog(
{
title: 'Открыть файл',
defaultPath: defaultPath,
filters: [
{
name: "XML файлы (*.xml)",
extensions: ["xml"]
},
{
name: "CSV файлы (*.csv)",
extensions: ["csv"]
},
{
name: "Все файлы (*.*)",
extensions: ["*"]
},
],
properties: ['openFile', 'createDirectory']
}
).then(result => {
var filename = result.filePaths[0];
globalVars.userPath = path.dirname(filename);
saveConfig();
loadFile(filename).then(
() => {
mainWindow.send('set-path-data', weldingPathData);
},
() => {
mainWindow.send(
'open-error-dialog',
'Не удалось загрузить данные из файла \n(' + filename + ')'
);
}
);
});
}
function loadFile(filename) {
var ext = path.extname(filename).toLowerCase();
switch(ext) {
case '.xml':
return loadFromXmlFile(filename);
case '.csv':
return loadFromCsvFile(filename);
}
return new Promise((resolve, reject) => {
reject();
});
}
function loadFromXmlFile(filename) {
var error = true;
var newWeldingPathData = [];
var promise = new Promise((resolve, reject) => {
try {
var txt = fs.readFileSync(filename, 'utf8');
var parser = new xmldom.DOMParser();
var doc = parser.parseFromString(txt);
parsing: {
var rootEl = doc.documentElement;
if ( rootEl.nodeName != 'laser_welding_path_editor' ) {
break parsing;
}
for (var i = 0; i < rootEl.childNodes.length; i++) {
var el = rootEl.childNodes[i];
if (el.nodeName == 'path') {
var pathEl = el;
break;
}
}
if ( !pathEl ) {
break parsing;
}
var pathNodes = pathEl.childNodes;
for (var i = 0; i < pathNodes.length; i++) {
var el = pathNodes[i];
if (el.nodeName != 'item') {
continue;
}
var itemNodes = el.childNodes;
var textNode
var y = null;
var status = null;
for (var j = 0; j < itemNodes.length; j++) {
el = itemNodes[j];
textNode = el.childNodes[0];
if ( textNode ) {
switch (el.nodeName) {
case 'y':
y = parseFloat(textNode.nodeValue);
break;
case 'status':
status = parseInt(textNode.nodeValue);
if ( status ) {
status = 1;
}
break;
}
}
}
if ( y != null && status != null ) {
newWeldingPathData.push( [y, status] );
}
}
weldingPathData = newWeldingPathData
error = false;
}
}
catch(e) {
}
error ? reject() : resolve();
});
return promise;
}
function loadFromCsvFile(filename) {
var error = false;
var newWeldingPathData = [];
var promise = new Promise((resolve, reject) => {
fs.createReadStream(filename)
.pipe(csvParser({
separator: ';'
}))
.on('data', data => {
if (!error && data.Y && data.STATUS) {
var y = parseFloat(data.Y);
var status = parseInt(data.STATUS);
if ( !isNaN(y) && !isNaN(status) ) {
if (status != 0) {
status = 1;
}
newWeldingPathData.push([y, status]);
}
else {
error = true;
}
}
else {
error = true;
}
})
.on('end', () => {
if ( error ) {
reject();
}
else {
weldingPathData = newWeldingPathData;
resolve();
}
});
});
return promise;
}
function onSaveClick() {
ipc.on('get-path-data-reply', (event, arg) => onGetPathData(arg) );
weldingPathData = mainWindow.send('get-path-data');
function onGetPathData(data) {
ipc.removeAllListeners('get-path-data-reply');
weldingPathData = data;
var defaultPath = globalVars.userPath;
dialog.showSaveDialog(
{
title: 'Сохранить в файле',
defaultPath: defaultPath,
filters: [
{
name: "XML файлы (*.xml)",
extensions: ["xml"]
},
{
name: "CSV файлы (*.csv)",
extensions: ["csv"]
},
{
name: "Все файлы (*.*)",
extensions: ["*"]
},
],
}
).then(result => {
var filename = result.filePath;
var ext = path.extname(filename).toLowerCase();
if ( !['.xml', '.csv'].includes(ext) ) {
ext = '.xml';
filename += ext;
}
globalVars.debug = ext;
globalVars.userPath = path.dirname(filename);
saveConfig();
saveFile(filename);
});
}
}
function saveFile(filename) {
var ext = path.extname(filename).toLowerCase();
var failed = function() {
mainWindow.send(
'open-error-dialog',
'Не удалось данные сохранить в файле \n(' + filename + ')'
);
}
switch(ext) {
case '.xml':
saveToXmlFile(filename).catch(failed);
break;
case '.csv':
saveToCsvFile(filename).catch(failed);
break;
}
}
function saveToXmlFile(filename) {
var doc = new xmldom.DOMParser().parseFromString(
'<?xml version="1.0" encoding="UTF-8" standalone="yes"?>' +
'<laser_welding_path_editor/>');
var rootEl = doc.documentElement;
var pathEl = doc.createElement('path');
rootEl.appendChild(pathEl);
for (var item of weldingPathData) {
var itemEl = doc.createElement('item');
pathEl.appendChild(itemEl);
var yEl = doc.createElement('y');
yEl.appendChild(doc.createTextNode(item[0].toString()));
itemEl.appendChild(yEl);
var statusEl = doc.createElement('status');
statusEl.appendChild(doc.createTextNode(item[1].toString()));
itemEl.appendChild(statusEl);
}
var serializer = new xmldom.XMLSerializer();
var txt = serializer.serializeToString(doc);
return new Promise((resolve, reject) => {
try {
fs.writeFileSync(filename, txt, 'utf8');
resolve();
}
catch(e) {
reject(e);
}
});
}
function saveToCsvFile(filename) {
const writer = csvWriter.createArrayCsvWriter({
path: filename,
header: ['Y','STATUS'],
fieldDelimiter: ';',
recordDelimiter: '\r\n'
});
return writer.writeRecords(weldingPathData);
}
function onAboutClick() {
aboutDialog = new electron.BrowserWindow({
parent: mainWindow,
width: 412,
height: 564,
center: true,
modal: true,
show: false,
resizable: false,
minimizable: false,
webPreferences: {
nodeIntegration: true
}
});
aboutDialog.removeMenu();
aboutDialog.loadFile('about.html');
aboutDialog.on('ready-to-show', () => aboutDialog.show());
}
function closeAboutDialog() {
aboutDialog.close();
aboutDialog = null;
}