refactor ipc module

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

src/common/base-store.ts

@@ -6,7 +6,7 @@ import { action, observable, reaction, runInAction, toJS, when } from "mobx";
 import Singleton from "./utils/singleton";
 import { getAppVersion } from "./utils/app-version";
 import logger from "../main/logger";
-import { broadcastIpc, IpcBroadcastParams } from "./ipc";
+import { broadcastMessage, subscribeToBroadcast, unsubscribeFromBroadcast } from "./ipc";
 import isEqual from "lodash/isEqual";
 
 export interface BaseStoreParams<T = any> extends ConfOptions<T> {
@@ -36,8 +36,12 @@ export class BaseStore<T = any> extends Singleton {
     return path.basename(this.storeConfig.path);
   }
 
-  get syncChannel() {
+  get syncRendererChannel() {
-    return `store-sync:${this.name}`
+    return `store-sync-renderer:${this.name}`
+  }
+
+  get syncMainChannel() {
+    return `store-sync-main:${this.name}`
   }
 
   protected async init() {
@@ -84,16 +88,16 @@ export class BaseStore<T = any> extends Singleton {
         logger.silly(`[STORE]: SYNC ${this.name} from renderer`, { model });
         this.onSync(model);
       };
-      ipcMain.on(this.syncChannel, callback);
+      subscribeToBroadcast(this.syncMainChannel, callback)
-      this.syncDisposers.push(() => ipcMain.off(this.syncChannel, callback));
+      this.syncDisposers.push(() => unsubscribeFromBroadcast(this.syncMainChannel, callback));
     }
     if (ipcRenderer) {
       const callback = (event: IpcRendererEvent, model: T) => {
         logger.silly(`[STORE]: SYNC ${this.name} from main`, { model });
         this.onSyncFromMain(model);
       };
-      ipcRenderer.on(this.syncChannel, callback);
+      subscribeToBroadcast(this.syncRendererChannel, callback)
-      this.syncDisposers.push(() => ipcRenderer.off(this.syncChannel, callback));
+      this.syncDisposers.push(() => unsubscribeFromBroadcast(this.syncRendererChannel, callback));
     }
   }
 
@@ -104,7 +108,8 @@ export class BaseStore<T = any> extends Singleton {
   }
 
   unregisterIpcListener() {
-    ipcRenderer.removeAllListeners(this.syncChannel)
+    ipcRenderer.removeAllListeners(this.syncMainChannel)
+    ipcRenderer.removeAllListeners(this.syncRendererChannel)
   }
 
   disableSync() {
@@ -130,41 +135,10 @@ export class BaseStore<T = any> extends Singleton {
   protected async onModelChange(model: T) {
     if (ipcMain) {
       this.saveToFile(model); // save config file
-      this.syncToWebViews(model); // send update to renderer views
+      broadcastMessage(this.syncRendererChannel, model)
+    } else {
+      broadcastMessage(this.syncMainChannel, model)
     }
-    // send "update-request" to main-process
-    if (ipcRenderer) {
-      ipcRenderer.send(this.syncChannel, model);
-    }
-  }
-
-  protected async syncToWebViews(model: T) {
-    const msg: IpcBroadcastParams = {
-      channel: this.syncChannel,
-      args: [model],
-    }
-    broadcastIpc(msg); // send to all windows (BrowserWindow, webContents)
-    const frames = await this.getSubFrames();
-    frames.forEach(frameId => {
-      // send to all sub-frames (e.g. cluster-view managed in iframe)
-      broadcastIpc({
-        ...msg,
-        frameId: frameId,
-        frameOnly: true,
-      });
-    });
-  }
-
-  // todo: refactor?
-  protected async getSubFrames(): Promise<number[]> {
-    const subFrames: number[] = [];
-    const { clusterStore } = await import("./cluster-store");
-    clusterStore.clustersList.forEach(cluster => {
-      if (cluster.frameId) {
-        subFrames.push(cluster.frameId)
-      }
-    });
-    return subFrames;
   }
 
   @action

src/common/cluster-ipc.ts

@@ -1,59 +1,43 @@
-import { createIpcChannel } from "./ipc";
+import { handleRequest } from "./ipc";
 import { ClusterId, clusterStore } from "./cluster-store";
-import { extensionLoader } from "../extensions/extension-loader"
 import { appEventBus } from "./event-bus"
 import { ResourceApplier } from "../main/resource-applier";
+import { ipcMain } from "electron";
 
-export const clusterIpc = {
+if (ipcMain) {
-  activate: createIpcChannel({
+  handleRequest("cluster:activate", (event, clusterId: ClusterId, force = false) => {
-    channel: "cluster:activate",
+    const cluster = clusterStore.getById(clusterId);
-    handle: (clusterId: ClusterId, force = false) => {
+    if (cluster) {
-      const cluster = clusterStore.getById(clusterId);
+      return cluster.activate(force);
-      if (cluster) {
-        return cluster.activate(force);
-      }
-    },
-  }),
-
-  setFrameId: createIpcChannel({
-    channel: "cluster:set-frame-id",
-    handle: (clusterId: ClusterId, frameId?: number) => {
-      const cluster = clusterStore.getById(clusterId);
-      if (cluster) {
-        if (frameId) cluster.frameId = frameId; // save cluster's webFrame.routingId to be able to send push-updates
-        extensionLoader.broadcastExtensions(frameId)
-        return cluster.pushState();
-      }
-    },
-  }),
-
-  refresh: createIpcChannel({
-    channel: "cluster:refresh",
-    handle: (clusterId: ClusterId) => {
-      const cluster = clusterStore.getById(clusterId);
-      if (cluster) return cluster.refresh({ refreshMetadata: true })
-    },
-  }),
-
-  disconnect: createIpcChannel({
-    channel: "cluster:disconnect",
-    handle: (clusterId: ClusterId) => {
-      appEventBus.emit({name: "cluster", action: "stop"});
-      return clusterStore.getById(clusterId)?.disconnect();
-    },
-  }),
-
-  kubectlApplyAll: createIpcChannel({
-    channel: "cluster:kubectl-apply-all",
-    handle: (clusterId: ClusterId, resources: string[]) => {
-      appEventBus.emit({name: "cluster", action: "kubectl-apply-all"})
-      const cluster = clusterStore.getById(clusterId);
-      if (cluster) {
-        const applier = new ResourceApplier(cluster)
-        applier.kubectlApplyAll(resources)
-      } else {
-        throw `${clusterId} is not a valid cluster id`;
-      }
     }
-  }),
+  })
+
+  handleRequest("cluster:set-frame-id", (event, clusterId: ClusterId, frameId?: number) => {
+    const cluster = clusterStore.getById(clusterId);
+    if (cluster) {
+      if (frameId) cluster.frameId = frameId; // save cluster's webFrame.routingId to be able to send push-updates
+      return cluster.pushState();
+    }
+  })
+
+  handleRequest("cluster:refresh", (event, clusterId: ClusterId) => {
+    const cluster = clusterStore.getById(clusterId);
+    if (cluster) return cluster.refresh({ refreshMetadata: true })
+  })
+
+  handleRequest("cluster:disconnect", (event, clusterId: ClusterId) => {
+    appEventBus.emit({name: "cluster", action: "stop"});
+    return clusterStore.getById(clusterId)?.disconnect();
+  })
+
+  handleRequest("cluster:kubectl-apply-all", (event, clusterId: ClusterId, resources: string[]) => {
+    appEventBus.emit({name: "cluster", action: "kubectl-apply-all"})
+    const cluster = clusterStore.getById(clusterId);
+    if (cluster) {
+      const applier = new ResourceApplier(cluster)
+      applier.kubectlApplyAll(resources)
+    } else {
+      throw `${clusterId} is not a valid cluster id`;
+    }
+  })
 }

src/common/cluster-store.ts

@@ -2,7 +2,7 @@ import type { WorkspaceId } from "./workspace-store";
 import path from "path";
 import { app, ipcRenderer, remote, webFrame } from "electron";
 import { unlink } from "fs-extra";
-import { action, computed, observable, toJS } from "mobx";
+import { action, computed, observable, reaction, toJS } from "mobx";
 import { BaseStore } from "./base-store";
 import { Cluster, ClusterState } from "../main/cluster";
 import migrations from "../migrations/cluster-store"
@@ -13,6 +13,7 @@ import { saveToAppFiles } from "./utils/saveToAppFiles";
 import { KubeConfig } from "@kubernetes/client-node";
 import _ from "lodash";
 import move from "array-move";
+import { subscribeToBroadcast, unsubscribeAllFromBroadcast } from "./ipc";
 
 export interface ClusterIconUpload {
   clusterId: string;
@@ -84,21 +85,20 @@ export class ClusterStore extends BaseStore<ClusterStoreModel> {
       migrations: migrations,
     });
 
-    this.pushStateToViewsPeriodically()
+    this.pushStateToViewsAutomatically()
   }
 
-  protected pushStateToViewsPeriodically() {
+  protected pushStateToViewsAutomatically() {
     if (!ipcRenderer) {
-      // This is a bit of a hack, we need to do this because we might loose messages that are sent before a view is ready
+      reaction(() => this.connectedClustersList, () => {
-      setInterval(() => {
         this.pushState()
-      }, 5000)
+      })
     }
   }
 
   registerIpcListener() {
     logger.info(`[CLUSTER-STORE] start to listen (${webFrame.routingId})`)
-    ipcRenderer.on("cluster:state", (event, clusterId: string, state: ClusterState) => {
+    subscribeToBroadcast("cluster:state", (event, clusterId: string, state: ClusterState) => {
       logger.silly(`[CLUSTER-STORE]: received push-state at ${location.host} (${webFrame.routingId})`, clusterId, state);
       this.getById(clusterId)?.setState(state)
     })
@@ -106,7 +106,7 @@ export class ClusterStore extends BaseStore<ClusterStoreModel> {
 
   unregisterIpcListener() {
     super.unregisterIpcListener()
-    ipcRenderer.removeAllListeners("cluster:state")
+    unsubscribeAllFromBroadcast("cluster:state")
   }
 
   pushState() {
@@ -131,6 +131,10 @@ export class ClusterStore extends BaseStore<ClusterStoreModel> {
     return this.getById(this.activeCluster);
   }
 
+  @computed get connectedClustersList(): Cluster[] {
+    return this.clustersList.filter((c) => !c.disconnected)
+  }
+
   isActive(id: ClusterId) {
     return this.activeCluster === id;
   }

src/common/ipc.ts

@@ -1,79 +1,70 @@
-// Inter-protocol communications (main <-> renderer)
+// Inter-process communications (main <-> renderer)
 // https://www.electronjs.org/docs/api/ipc-main
 // https://www.electronjs.org/docs/api/ipc-renderer
 
-import { ipcMain, ipcRenderer, WebContents, webContents } from "electron"
+import { ipcMain, ipcRenderer, webContents, remote } from "electron"
 import logger from "../main/logger";
 
-export type IpcChannel = string;
+export function handleRequest(channel: string, listener: (...args: any[]) => any) {
-
+  ipcMain.handle(channel, listener)
-export interface IpcChannelOptions {
-  channel: IpcChannel; // main <-> renderer communication channel name
-  handle?: (...args: any[]) => Promise<any> | any; // message handler
-  autoBind?: boolean; // auto-bind message handler in main-process, default: true
-  timeout?: number; // timeout for waiting response from the sender
-  once?: boolean; // one-time event
 }
 
-export function createIpcChannel({ autoBind = true, once, timeout = 0, handle, channel }: IpcChannelOptions) {
+export async function requestMain(channel: string, ...args: any[]) {
-  const ipcChannel = {
+  return await ipcRenderer.invoke(channel, ...args)
-    channel: channel,
-    handleInMain: () => {
-      logger.info(`[IPC]: setup channel "${channel}"`);
-      const ipcHandler = once ? ipcMain.handleOnce : ipcMain.handle;
-      ipcHandler(channel, async (event, ...args) => {
-        let timerId: any;
-        try {
-          if (timeout > 0) {
-            timerId = setTimeout(() => {
-              throw new Error(`[IPC]: response timeout in ${timeout}ms`)
-            }, timeout);
-          }
-          return await handle(...args); // todo: maybe exec in separate thread/worker
-        } catch (error) {
-          throw error
-        } finally {
-          clearTimeout(timerId);
-        }
-      })
-    },
-    removeHandler() {
-      ipcMain.removeHandler(channel);
-    },
-    invokeFromRenderer: async <T>(...args: any[]): Promise<T> => {
-      return ipcRenderer.invoke(channel, ...args);
-    },
-  }
-  if (autoBind && ipcMain) {
-    ipcChannel.handleInMain();
-  }
-  return ipcChannel;
 }
 
-export interface IpcBroadcastParams<A extends any[] = any> {
+async function getSubFrames(): Promise<number[]> {
-  channel: IpcChannel
+  const subFrames: number[] = [];
-  webContentId?: number; // send to single webContents view
+  const { clusterStore } = await import("./cluster-store");
-  frameId?: number; // send to inner frame of webContents
+  clusterStore.clustersList.forEach(cluster => {
-  frameOnly?: boolean; // send message only to view with provided `frameId`
+    if (cluster.frameId) {
-  filter?: (webContent: WebContents) => boolean
+      subFrames.push(cluster.frameId)
-  timeout?: number; // todo: add support
+    }
-  args?: A;
+  });
+  return subFrames;
 }
 
-export function broadcastIpc({ channel, frameId, frameOnly, webContentId, filter, args = [] }: IpcBroadcastParams) {
+export function broadcastMessage(channel: string, ...args: any[]) {
-  const singleView = webContentId ? webContents.fromId(webContentId) : null;
+  const views = (webContents || remote.webContents).getAllWebContents();
-  let views = singleView ? [singleView] : webContents.getAllWebContents();
-  if (filter) {
-    views = views.filter(filter);
-  }
   views.forEach(webContent => {
     const type = webContent.getType();
     logger.silly(`[IPC]: broadcasting "${channel}" to ${type}=${webContent.id}`, { args });
-    if (!frameOnly) {
+    webContent.send(channel, ...args);
-      webContent.send(channel, ...args);
+    getSubFrames().then((frames) => {
-    }
+      frames.map((frameId) => {
-    if (frameId) {
+        webContent.sendToFrame(frameId, channel, ...args)
-      webContent.sendToFrame(frameId, channel, ...args)
+      })
-    }
+    }).catch((e) => e)
   })
+  if (ipcRenderer) {
+    ipcRenderer.send(channel, ...args)
+  } else {
+    ipcMain.emit(channel, ...args)
+  }
+}
+
+export function subscribeToBroadcast(channel: string, listener: (...args: any[]) => any) {
+  if (ipcRenderer) {
+    ipcRenderer.on(channel, listener)
+  } else {
+    ipcMain.on(channel, listener)
+  }
+
+  return listener
+}
+
+export function unsubscribeFromBroadcast(channel: string, listener: (...args: any[]) => any) {
+  if (ipcRenderer) {
+    ipcRenderer.off(channel, listener)
+  } else {
+    ipcMain.off(channel, listener)
+  }
+}
+
+export function unsubscribeAllFromBroadcast(channel: string) {
+  if (ipcRenderer) {
+    ipcRenderer.removeAllListeners(channel)
+  } else {
+    ipcMain.removeAllListeners(channel)
+  }
 }

src/common/workspace-store.ts

@@ -3,7 +3,7 @@ import { action, computed, observable, toJS, reaction } from "mobx";
 import { BaseStore } from "./base-store";
 import { clusterStore } from "./cluster-store"
 import { appEventBus } from "./event-bus";
-import { broadcastIpc } from "../common/ipc";
+import { broadcastMessage } from "../common/ipc";
 import logger from "../main/logger";
 
 export type WorkspaceId = string;
@@ -53,10 +53,7 @@ export class Workspace implements WorkspaceModel, WorkspaceState {
 
   pushState(state = this.getState()) {
     logger.silly("[WORKSPACE] pushing state", {...state, id: this.id})
-    broadcastIpc({
+    broadcastMessage("workspace:state", this.id, toJS(state))
-      channel: "workspace:state",
-      args: [this.id, toJS(state)],
-    });
   }
 
   @action

src/extensions/cluster-feature.ts

@@ -6,7 +6,7 @@ import { ResourceApplier } from "../main/resource-applier"
 import { Cluster } from "../main/cluster";
 import logger from "../main/logger";
 import { app } from "electron"
-import { clusterIpc } from "../common/cluster-ipc"
+import { requestMain } from "../common/ipc";
 
 export interface ClusterFeatureStatus {
   currentVersion: string;
@@ -39,7 +39,7 @@ export abstract class ClusterFeature {
     if (app) {
       await new ResourceApplier(cluster).kubectlApplyAll(resources)
     } else {
-      await clusterIpc.kubectlApplyAll.invokeFromRenderer(cluster.id, resources)
+      await requestMain("cluster:kubectl-apply-all", cluster.id, resources)
     }
   }
 

src/extensions/extension-loader.ts

@@ -2,10 +2,12 @@ import type { ExtensionId, ExtensionManifest, ExtensionModel, LensExtension } fr
 import type { LensMainExtension } from "./lens-main-extension"
 import type { LensRendererExtension } from "./lens-renderer-extension"
 import path from "path"
-import { broadcastIpc } from "../common/ipc"
+import { broadcastMessage, subscribeToBroadcast } from "../common/ipc"
 import { observable, reaction, toJS, } from "mobx"
 import logger from "../main/logger"
 import { app, ipcRenderer, remote } from "electron"
+import { appEventBus } from "./core-api/event-bus"
+import { clusterStore } from "./core-api/stores"
 import {
   appPreferenceRegistry, clusterFeatureRegistry, clusterPageRegistry, globalPageRegistry,
   kubeObjectDetailRegistry, kubeObjectMenuRegistry, menuRegistry, statusBarRegistry
@@ -27,13 +29,25 @@ export class ExtensionLoader {
 
   constructor() {
     if (ipcRenderer) {
-      ipcRenderer.on("extensions:loaded", (event, extensions: InstalledExtension[]) => {
+      subscribeToBroadcast("extensions:loaded", (event, extensions: InstalledExtension[]) => {
         extensions.forEach((ext) => {
           if (!this.getById(ext.manifestPath)) {
             this.extensions.set(ext.manifestPath, ext)
           }
         })
       })
+    } else {
+      reaction(() => this.extensions.toJS(), () => {
+        this.broadcastExtensions()
+      })
+      appEventBus.addListener((ev) => {
+        if (ev.name === "app" && ev.action === "dom-ready") {
+          this.broadcastExtensions()
+        }
+      })
+      reaction(() => clusterStore.connectedClustersList, () => {
+        this.broadcastExtensions()
+      })
     }
   }
 
@@ -120,13 +134,8 @@ export class ExtensionLoader {
     }
   }
 
-  broadcastExtensions(frameId?: number) {
+  broadcastExtensions() {
-    broadcastIpc({
+    broadcastMessage("extensions:loaded", this.toJSON().extensions)
-      channel: "extensions:loaded",
-      frameId: frameId,
-      frameOnly: !!frameId,
-      args: [this.toJSON().extensions],
-    })
   }
 
   toJSON() {

src/main/cluster.ts

@@ -4,7 +4,7 @@ import type { IMetricsReqParams } from "../renderer/api/endpoints/metrics.api";
 import type { WorkspaceId } from "../common/workspace-store";
 import { action, computed, observable, reaction, toJS, when } from "mobx";
 import { apiKubePrefix } from "../common/vars";
-import { broadcastIpc } from "../common/ipc";
+import { broadcastMessage } from "../common/ipc";
 import { ContextHandler } from "./context-handler"
 import { AuthorizationV1Api, CoreV1Api, KubeConfig, V1ResourceAttributes } from "@kubernetes/client-node"
 import { Kubectl } from "./kubectl";
@@ -405,11 +405,7 @@ export class Cluster implements ClusterModel, ClusterState {
 
   pushState(state = this.getState()) {
     logger.silly(`[CLUSTER]: push-state`, state);
-    broadcastIpc({
+    broadcastMessage("cluster:state", this.id, state)
-      channel: "cluster:state",
-      frameId: this.frameId,
-      args: [this.id, state],
-    })
   }
 
   // get cluster system meta, e.g. use in "logger"

src/main/kube-auth-proxy.ts

@@ -1,6 +1,6 @@
 import { ChildProcess, spawn } from "child_process"
 import { waitUntilUsed } from "tcp-port-used";
-import { broadcastIpc } from "../common/ipc";
+import { broadcastMessage } from "../common/ipc";
 import type { Cluster } from "./cluster"
 import { Kubectl } from "./kubectl"
 import logger from "./logger"
@@ -88,7 +88,7 @@ export class KubeAuthProxy {
   protected async sendIpcLogMessage(res: KubeAuthProxyLog) {
     const channel = `kube-auth:${this.cluster.id}`
     logger.info(`[KUBE-AUTH]: out-channel "${channel}"`, { ...res, meta: this.cluster.getMeta() });
-    broadcastIpc({ channel: channel, args: [res] });
+    broadcastMessage(channel, res)
   }
 
   public exit() {

src/main/window-manager.ts

@@ -1,10 +1,10 @@
 import type { ClusterId } from "../common/cluster-store";
 import { clusterStore } from "../common/cluster-store";
 import { observable } from "mobx";
-import { app, BrowserWindow, dialog, ipcMain, shell, webContents } from "electron"
+import { app, BrowserWindow, dialog, shell, webContents } from "electron"
 import windowStateKeeper from "electron-window-state"
-import { extensionLoader } from "../extensions/extension-loader";
 import { appEventBus } from "../common/event-bus"
+import { subscribeToBroadcast } from "../common/ipc"
 import { initMenu } from "./menu";
 import { initTray } from "./tray";
 
@@ -61,7 +61,7 @@ export class WindowManager {
         shell.openExternal(url);
       });
       this.mainWindow.webContents.on("dom-ready", () => {
-        extensionLoader.broadcastExtensions()
+        appEventBus.emit({name: "app", action: "dom-ready"})
       })
       this.mainWindow.on("focus", () => {
         appEventBus.emit({name: "app", action: "focus"})
@@ -98,9 +98,9 @@ export class WindowManager {
 
   protected bindEvents() {
     // track visible cluster from ui
-    ipcMain.on("cluster-view:current-id", (event, clusterId: ClusterId) => {
+    subscribeToBroadcast("cluster-view:current-id", (event, clusterId: ClusterId) => {
       this.activeClusterId = clusterId;
-    });
+    })
   }
 
   async ensureMainWindow(): Promise<BrowserWindow> {

src/renderer/components/+cluster-settings/cluster-settings.tsx

@@ -12,8 +12,8 @@ import { Cluster } from "../../../main/cluster";
 import { ClusterIcon } from "../cluster-icon";
 import { IClusterSettingsRouteParams } from "./cluster-settings.route";
 import { clusterStore } from "../../../common/cluster-store";
-import { clusterIpc } from "../../../common/cluster-ipc";
 import { PageLayout } from "../layout/page-layout";
+import { requestMain } from "../../../common/ipc";
 
 interface Props extends RouteComponentProps<IClusterSettingsRouteParams> {
 }
@@ -41,8 +41,8 @@ export class ClusterSettings extends React.Component<Props> {
 
   refreshCluster = async () => {
     if (this.cluster) {
-      await clusterIpc.activate.invokeFromRenderer(this.cluster.id);
+      await requestMain("cluster:activate", this.cluster.id)
-      await clusterIpc.refresh.invokeFromRenderer(this.cluster.id);
+      await requestMain("cluster:refresh", this.cluster.id)
     }
   }
 

src/renderer/components/+cluster-settings/components/remove-cluster-button.tsx

@@ -1,7 +1,6 @@
 import React from "react";
 import { Trans } from "@lingui/macro";
 import { observer } from "mobx-react";
-import { clusterIpc } from "../../../../common/cluster-ipc";
 import { clusterStore } from "../../../../common/cluster-store";
 import { Cluster } from "../../../../main/cluster";
 import { autobind } from "../../../utils";

src/renderer/components/app.tsx

@@ -33,12 +33,12 @@ import { ErrorBoundary } from "./error-boundary";
 import { Terminal } from "./dock/terminal";
 import { getHostedCluster, getHostedClusterId } from "../../common/cluster-store";
 import logger from "../../main/logger";
-import { clusterIpc } from "../../common/cluster-ipc";
 import { webFrame } from "electron";
 import { clusterPageRegistry } from "../../extensions/registries/page-registry";
 import { DynamicPage } from "../../extensions/dynamic-page";
 import { extensionLoader } from "../../extensions/extension-loader";
 import { appEventBus } from "../../common/event-bus"
+import { requestMain } from "../../common/ipc";
 
 @observer
 export class App extends React.Component {
@@ -48,7 +48,7 @@ export class App extends React.Component {
     logger.info(`[APP]: Init dashboard, clusterId=${clusterId}, frameId=${frameId}`)
     await Terminal.preloadFonts()
 
-    await clusterIpc.setFrameId.invokeFromRenderer(clusterId, frameId);
+    await requestMain("cluster:set-frame-id", clusterId, frameId)
     await getHostedCluster().whenReady; // cluster.activate() is done at this point
     extensionLoader.loadOnClusterRenderer();
     appEventBus.emit({name: "cluster", action: "open", params: {

src/renderer/components/cluster-manager/cluster-status.tsx

@@ -5,7 +5,7 @@ import React from "react";
 import { observer } from "mobx-react";
 import { ipcRenderer } from "electron";
 import { computed, observable } from "mobx";
-import { clusterIpc } from "../../../common/cluster-ipc";
+import { requestMain, subscribeToBroadcast } from "../../../common/ipc";
 import { Icon } from "../icon";
 import { Button } from "../button";
 import { cssNames, IClassName } from "../../utils";
@@ -32,7 +32,7 @@ export class ClusterStatus extends React.Component<Props> {
   }
 
   async componentDidMount() {
-    ipcRenderer.on(`kube-auth:${this.cluster.id}`, (evt, res: KubeAuthProxyLog) => {
+    subscribeToBroadcast(`kube-auth:${this.cluster.id}`, (evt, res: KubeAuthProxyLog) => {
       this.authOutput.push({
         data: res.data.trimRight(),
         error: res.error,
@@ -48,7 +48,7 @@ export class ClusterStatus extends React.Component<Props> {
   }
 
   activateCluster = async (force = false) => {
-    await clusterIpc.activate.invokeFromRenderer(this.props.clusterId, force);
+    await requestMain("cluster:activate", this.props.clusterId, force)
   }
 
   reconnect = async () => {

src/renderer/components/cluster-manager/clusters-menu.tsx

@@ -2,6 +2,7 @@ import "./clusters-menu.scss"
 
 import React from "react";
 import { remote } from "electron"
+import { requestMain } from "../../../common/ipc";
 import type { Cluster } from "../../../main/cluster";
 import { DragDropContext, Draggable, DraggableProvided, Droppable, DroppableProvided, DropResult } from "react-beautiful-dnd";
 import { observer } from "mobx-react";
@@ -20,7 +21,6 @@ import { clusterSettingsURL } from "../+cluster-settings";
 import { landingURL } from "../+landing-page";
 import { Tooltip } from "../tooltip";
 import { ConfirmDialog } from "../confirm-dialog";
-import { clusterIpc } from "../../../common/cluster-ipc";
 import { clusterViewURL } from "./cluster-view.route";
 import { globalPageRegistry } from "../../../extensions/registries/page-registry";
 
@@ -60,7 +60,7 @@ export class ClustersMenu extends React.Component<Props> {
             navigate(landingURL());
             clusterStore.setActive(null);
           }
-          await clusterIpc.disconnect.invokeFromRenderer(cluster.id);
+          await requestMain("cluster:disconnect", cluster.id)
         }
       }))
     }

src/renderer/components/layout/sidebar.tsx

@@ -72,9 +72,15 @@ export class Sidebar extends React.Component<Props> {
     });
   }
 
+  @computed
+  get pageRegistryItems() {
+    return clusterPageRegistry.getItems()
+  }
+
   render() {
     const { toggle, isPinned, className } = this.props;
     const query = namespaceStore.getContextParams();
+    const registryItems = this.pageRegistryItems
     return (
       <SidebarContext.Provider value={{ pinned: isPinned }}>
         <div className={cssNames("Sidebar flex column", className, { pinned: isPinned })}>
@@ -184,7 +190,7 @@ export class Sidebar extends React.Component<Props> {
             >
               {this.renderCustomResources()}
             </SidebarNavItem>
-            {clusterPageRegistry.getItems().map(({ path, title, url = String(path), hideInMenu, components: { MenuIcon } }) => {
+            {registryItems.map(({ path, title, url = String(path), hideInMenu, components: { MenuIcon } }) => {
               if (!MenuIcon || hideInMenu) {
                 return;
               }

src/renderer/lens-app.tsx

@@ -13,16 +13,17 @@ import { WhatsNew, whatsNewRoute } from "./components/+whats-new";
 import { Notifications } from "./components/notifications";
 import { ConfirmDialog } from "./components/confirm-dialog";
 import { extensionLoader } from "../extensions/extension-loader";
+import { broadcastMessage } from "../common/ipc";
 
 @observer
 export class LensApp extends React.Component {
   static async init() {
     extensionLoader.loadOnClusterManagerRenderer();
     window.addEventListener("offline", () => {
-      ipcRenderer.send("network:offline")
+      broadcastMessage("network:offline")
     })
     window.addEventListener("online", () => {
-      ipcRenderer.send("network:online")
+      broadcastMessage("network:online")
     })
   }
 

src/renderer/navigation.ts

@@ -7,6 +7,7 @@ import { createObservableHistory } from "mobx-observable-history";
 import { createBrowserHistory, createMemoryHistory, LocationDescriptor } from "history";
 import logger from "../main/logger";
 import { clusterViewRoute, IClusterViewRouteParams } from "./components/cluster-manager/cluster-view.route";
+import { broadcastMessage, subscribeToBroadcast } from "../common/ipc";
 
 export const history = typeof window !== "undefined" ? createBrowserHistory() : createMemoryHistory();
 export const navigation = createObservableHistory(history);
@@ -94,19 +95,19 @@ export function getMatchedClusterId(): string {
 if (process.isMainFrame) {
   // Keep track of active cluster-id for handling IPC/menus/etc.
   reaction(() => getMatchedClusterId(), clusterId => {
-    ipcRenderer.send("cluster-view:current-id", clusterId);
+    broadcastMessage("cluster-view:current-id", clusterId)
   }, {
     fireImmediately: true
   })
 }
 
 // Handle navigation via IPC (e.g. from top menu)
-ipcRenderer.on("menu:navigate", (event, location: LocationDescriptor) => {
+subscribeToBroadcast("menu:navigate", (event, location: LocationDescriptor) => {
   logger.info(`[IPC]: ${event.type} ${JSON.stringify(location)}`, event);
   navigate(location);
-});
+})
 
 // Reload dashboard window
-ipcRenderer.on("menu:reload", () => {
+subscribeToBroadcast("menu:reload", () => {
   location.reload();
-});
+})