zulip-desktop/app/renderer/js/preload.ts

import {contextBridge, webFrame} from "electron";
import fs from "fs";

import electron_bridge, {bridgeEvents} from "./electron-bridge";
import * as NetworkError from "./pages/network";
import {ipcRenderer} from "./typed-ipc-renderer";

contextBridge.exposeInMainWorld("raw_electron_bridge", electron_bridge);

ipcRenderer.on("logout", () => {
  if (bridgeEvents.emit("logout")) {
    return;
  }

  // Create the menu for the below
  const dropdown: HTMLElement = document.querySelector(".dropdown-toggle")!;
  dropdown.click();

  const nodes: NodeListOf<HTMLElement> = document.querySelectorAll(
    ".dropdown-menu li:last-child a",
  );
  nodes[nodes.length - 1].click();
});

ipcRenderer.on("show-keyboard-shortcuts", () => {
  if (bridgeEvents.emit("show-keyboard-shortcuts")) {
    return;
  }

  // Create the menu for the below
  const node: HTMLElement = document.querySelector(
    "a[data-overlay-trigger=keyboard-shortcuts]",
  )!;
  // Additional check
  if (node.textContent!.trim().toLowerCase() === "keyboard shortcuts (?)") {
    node.click();
  } else {
    // Atleast click the dropdown
    const dropdown: HTMLElement = document.querySelector(".dropdown-toggle")!;
    dropdown.click();
  }
});

ipcRenderer.on("show-notification-settings", () => {
  if (bridgeEvents.emit("show-notification-settings")) {
    return;
  }

  // Create the menu for the below
  const dropdown: HTMLElement = document.querySelector(".dropdown-toggle")!;
  dropdown.click();

  const nodes: NodeListOf<HTMLElement> = document.querySelectorAll(
    ".dropdown-menu li a",
  );
  nodes[2].click();

  const notificationItem: NodeListOf<HTMLElement> = document.querySelectorAll(
    ".normal-settings-list li div",
  );

  // Wait until the notification dom element shows up
  setTimeout(() => {
    notificationItem[2].click();
  }, 100);
});

window.addEventListener("load", () => {
  if (!location.href.includes("app/renderer/network.html")) {
    return;
  }

  const $reconnectButton = document.querySelector("#reconnect")!;
  const $settingsButton = document.querySelector("#settings")!;
  NetworkError.init($reconnectButton, $settingsButton);
});

(async () =>
  webFrame.executeJavaScript(
    fs.readFileSync(require.resolve("./injected"), "utf8"),
  ))();