import { printRecordService } from './database/PrintRecordService' import { getMainWindow } from 'ee-core/electron/window' import { logger } from 'ee-core/log' import { BrowserWindow } from 'electron' import {Event} from '../utils/Event' import {PrintEvent} from "../event/PrintEvent"; import {Channel} from "../channel/Channel"; /** * 打印服务 */ class PrintService { constructor() { } _init() { Event.on(PrintEvent.PRINT_DATA, async (res) => { await this.printData(res) }) } /** * 获取本地打印机列表 */ async listLocalPrinters(): Promise { return getMainWindow().webContents.getPrintersAsync(); } async printData(data: any) { getMainWindow().webContents.send(Channel.PRINT_START) const printWindow = new BrowserWindow({ show: false }); const printData = `${data.html}` getMainWindow().webContents.send(Channel.PRINT_DATA, printData) await printWindow.loadURL(`data:text/html, ${printData}`); printWindow.webContents.on('did-finish-load', () => { getMainWindow().webContents.send(Channel.PRINT_PROGRESS) printWindow.webContents.print({ silent: true, printBackground: true, deviceName: data.deviceName , margins:data.margins||{ marginType :'none' }, landscape:data.landscape||false, copies:data.copies||1, dpi:data.dpi, header:data.header, footer:data.footer, pageSize:data.pageSize //A4,Legal | {height:} }, (success: boolean, failureReason: string) => { logger.info('打印结果：', success, failureReason) getMainWindow().webContents.send(Channel.PRINT_RESULT, { success, failureReason }) printRecordService.add({ printerName: data.deviceName, printHtml: data.html, printStatus: success ? 'success' : 'failure', failureReason: failureReason }) printWindow.close(); }); // 静默打印 }); } } PrintService.toString = () => '[class PrintService]' const printService = new PrintService() export { PrintService, printService }