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yuanhe-checkin-electron/electron/preload.js

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const { contextBridge, ipcRenderer } = require("electron");
contextBridge.exposeInMainWorld("electronAPI", {
// 获取PDF绕过CORS
fetchPdf: (pdfUrl) => ipcRenderer.invoke("fetch-pdf", pdfUrl),
// 打印PDF
printPdf: (pdfUrl, options) =>
ipcRenderer.invoke("print-pdf", pdfUrl, options),
// 获取打印机列表
getPrinters: () => ipcRenderer.invoke("get-printers"),
startIdCardListen: () => ipcRenderer.invoke("start_idcard_listen"),
stopIdCardListen: () => ipcRenderer.invoke("stop_idcard_listen"),
onIdCardData: (callback) =>
ipcRenderer.on("idcard-data", (event, value) => callback(value)),
onIdCardError: (callback) =>
ipcRenderer.on("idcard-error", (event, value) => callback(value)),
log: (level, message) => ipcRenderer.send("log-message", { level, message }),
removeIdCardListeners: () => {
ipcRenderer.removeAllListeners("idcard-data");
ipcRenderer.removeAllListeners("idcard-error");
},
restartApp: () => ipcRenderer.send("restart-app"),
quitApp: () => ipcRenderer.send("quit-app"),
// 读取本地文件并返回 base64 字符串
readLocalFile: (filePath) => ipcRenderer.invoke("read-local-file", filePath),
});