Initial QOffice implementation
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Курнат Андрей
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const { app, BrowserWindow, dialog, ipcMain, Menu, shell } = require("electron");
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const fs = require("node:fs/promises");
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const path = require("node:path");
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const isDev = !app.isPackaged;
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const fileKinds = {
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docx: {
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title: "Открыть документ Word",
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saveTitle: "Сохранить документ Word",
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defaultName: "Документ QWord.docx",
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filters: [{ name: "Документы Word (.docx)", extensions: ["docx"] }]
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},
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xlsx: {
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title: "Открыть книгу Excel",
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saveTitle: "Сохранить книгу Excel",
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defaultName: "Книга QExcell.xlsx",
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filters: [{ name: "Книги Excel (.xlsx)", extensions: ["xlsx"] }]
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},
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pptx: {
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title: "Открыть презентацию PowerPoint",
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saveTitle: "Сохранить презентацию PowerPoint",
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defaultName: "Презентация QPowerPoint.pptx",
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filters: [{ name: "Презентации PowerPoint (.pptx)", extensions: ["pptx"] }]
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},
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eml: {
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title: "Открыть письмо EML",
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saveTitle: "Сохранить письмо EML",
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defaultName: "Письмо.eml",
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filters: [{ name: "Письма EML (.eml)", extensions: ["eml"] }]
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},
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mail: {
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title: "Открыть письмо Outlook",
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saveTitle: "Сохранить письмо EML",
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defaultName: "Письмо.eml",
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filters: [{ name: "Письма Outlook (.eml, .msg)", extensions: ["eml", "msg"] }]
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}
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};
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function validatedKind(kind) {
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if (typeof kind !== "string" || !Object.hasOwn(fileKinds, kind)) {
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throw new Error("Неподдерживаемый тип файла QOffice.");
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}
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return fileKinds[kind];
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}
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function safeDefaultName(kind, defaultFileName) {
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const config = validatedKind(kind);
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const extension = config.filters[0].extensions[0];
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return safeFileNameWithExtension(defaultFileName, extension, config.defaultName);
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}
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function safeFileNameWithExtension(defaultFileName, extension, fallbackName) {
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const candidate = typeof defaultFileName === "string" && defaultFileName.trim() ? path.basename(defaultFileName.trim()) : fallbackName;
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return candidate.toLowerCase().endsWith(`.${extension}`) ? candidate : `${candidate}.${extension}`;
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}
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function ownerWindow(event) {
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return BrowserWindow.fromWebContents(event.sender) ?? BrowserWindow.getFocusedWindow() ?? undefined;
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}
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function sendFocusedCommand(command) {
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const focusedWindow = BrowserWindow.getFocusedWindow();
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if (focusedWindow && !focusedWindow.isDestroyed()) {
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focusedWindow.webContents.send("qoffice:command", command);
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}
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}
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function createApplicationMenu() {
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const isMac = process.platform === "darwin";
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const template = [
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...(isMac
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? [
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{
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label: "QOffice",
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submenu: [
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{ role: "about", label: "О QOffice" },
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{ type: "separator" },
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{ role: "hide", label: "Скрыть QOffice" },
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{ role: "hideOthers", label: "Скрыть остальные" },
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{ role: "unhide", label: "Показать все" },
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{ type: "separator" },
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{ role: "quit", label: "Выйти из QOffice" }
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]
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}
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]
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: []),
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{
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label: "Файл",
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submenu: [
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{ label: "Открыть...", accelerator: "CmdOrCtrl+O", click: () => sendFocusedCommand("open") },
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{ label: "Сохранить как...", accelerator: "CmdOrCtrl+S", click: () => sendFocusedCommand("save") },
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{ type: "separator" },
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{ label: "Экспорт в PDF...", accelerator: "CmdOrCtrl+Shift+E", click: () => sendFocusedCommand("export-pdf") },
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{ type: "separator" },
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{ label: "Печать...", accelerator: "CmdOrCtrl+P", click: () => sendFocusedCommand("print") },
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{ type: "separator" },
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isMac ? { role: "close", label: "Закрыть окно" } : { role: "quit", label: "Выход" }
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]
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},
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{
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label: "Правка",
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submenu: [
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{ role: "undo", label: "Отменить" },
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{ role: "redo", label: "Повторить" },
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{ type: "separator" },
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{ role: "cut", label: "Вырезать" },
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{ role: "copy", label: "Копировать" },
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{ role: "paste", label: "Вставить" },
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{ role: "selectAll", label: "Выделить все" }
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]
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},
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{
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label: "Вид",
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submenu: [
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{ role: "resetZoom", label: "Сбросить масштаб" },
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{ role: "zoomIn", label: "Увеличить" },
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{ role: "zoomOut", label: "Уменьшить" },
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{ type: "separator" },
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{ role: "togglefullscreen", label: "Во весь экран" }
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]
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},
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{
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label: "Окно",
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submenu: [
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{ role: "minimize", label: "Свернуть" },
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{ role: "reload", label: "Перезагрузить" },
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...(isDev ? [{ role: "toggleDevTools", label: "Инструменты разработчика" }] : [])
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]
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}
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];
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Menu.setApplicationMenu(Menu.buildFromTemplate(template));
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}
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ipcMain.handle("qoffice:open-office-file", async (event, kind) => {
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const config = validatedKind(kind);
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const result = await dialog.showOpenDialog(ownerWindow(event), {
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title: config.title,
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properties: ["openFile"],
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filters: config.filters
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});
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if (result.canceled || result.filePaths.length === 0) {
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return { canceled: true };
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}
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const filePath = result.filePaths[0];
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const bytes = await fs.readFile(filePath);
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return {
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canceled: false,
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fileName: path.basename(filePath),
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filePath,
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base64Data: bytes.toString("base64")
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};
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});
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ipcMain.handle("qoffice:save-office-file", async (event, payload) => {
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if (!payload || typeof payload !== "object") {
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throw new Error("Некорректный запрос сохранения файла QOffice.");
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}
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const { kind, defaultFileName, base64Data } = payload;
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const config = validatedKind(kind);
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if (typeof base64Data !== "string") {
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throw new Error("Некорректные данные файла QOffice.");
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}
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const result = await dialog.showSaveDialog(ownerWindow(event), {
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title: config.saveTitle,
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defaultPath: safeDefaultName(kind, defaultFileName),
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filters: config.filters
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});
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if (result.canceled || !result.filePath) {
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return { canceled: true };
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}
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await fs.writeFile(result.filePath, Buffer.from(base64Data, "base64"));
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return {
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canceled: false,
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fileName: path.basename(result.filePath),
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filePath: result.filePath
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};
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});
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ipcMain.handle("qoffice:export-pdf", async (event, defaultFileName) => {
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const sourceWindow = ownerWindow(event);
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if (!sourceWindow) {
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throw new Error("Не удалось найти окно QOffice для экспорта PDF.");
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}
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const result = await dialog.showSaveDialog(sourceWindow, {
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title: "Экспорт PDF",
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defaultPath: safeFileNameWithExtension(defaultFileName, "pdf", "QOffice.pdf"),
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filters: [{ name: "PDF (.pdf)", extensions: ["pdf"] }]
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});
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if (result.canceled || !result.filePath) {
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return { canceled: true };
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}
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const pdf = await event.sender.printToPDF({
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printBackground: true,
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preferCSSPageSize: true
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});
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await fs.writeFile(result.filePath, pdf);
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return {
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canceled: false,
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fileName: path.basename(result.filePath),
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filePath: result.filePath
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};
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});
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function createWindow() {
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const mainWindow = new BrowserWindow({
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width: 1440,
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height: 920,
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minWidth: 1080,
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minHeight: 720,
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title: "QOffice",
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backgroundColor: "#f6f8fb",
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webPreferences: {
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preload: path.join(__dirname, "preload.cjs"),
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contextIsolation: true,
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nodeIntegration: false
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}
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});
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mainWindow.webContents.setWindowOpenHandler(({ url }) => {
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shell.openExternal(url);
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return { action: "deny" };
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});
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if (isDev) {
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mainWindow.loadURL("http://127.0.0.1:5173");
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} else {
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mainWindow.loadFile(path.join(__dirname, "../dist/index.html"));
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}
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}
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app.whenReady().then(() => {
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createApplicationMenu();
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createWindow();
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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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});
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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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