fix: do not register new ipc event listener when main screen component is loaded (fixes #176)

src/preload/index.ts

@@ -1,22 +1,43 @@
-import { contextBridge, ipcRenderer } from 'electron'
+import { contextBridge, ipcRenderer, IpcRendererEvent } from 'electron'
 
 // Whitelist of valid channels used for IPC communication (Send message from Renderer to Main)
 const mainAvailChannels: string[] = ['msgRequestGetVersion', 'msgOpenExternalLink']
-const rendererAvailChannels: string[] = ['msgReceivedVersion']
+const rendererAvailChannels: string[] = []
 
 contextBridge.exposeInMainWorld('mainApi', {
   send: (channel: string, ...data: any[]): void => {
     if (mainAvailChannels.includes(channel)) {
       ipcRenderer.send.apply(null, [channel, ...data])
     } else {
-      throw new Error(`Send failed: Unknown ipc channel name: ${channel}`)
+      throw new Error(`Unknown ipc channel name: ${channel}`)
     }
   },
-  receive: (channel: string, cbFunc: Function): void => {
+  sendSync: (channel: string, ...data: any[]): void => {
+    if (mainAvailChannels.includes(channel)) {
+      return ipcRenderer.sendSync.apply(null, [channel, ...data])
+    }
+
+    throw new Error(`Unknown ipc channel name: ${channel}`)
+  },
+  on: (channel: string, listener: (event: IpcRendererEvent, ...args: any[]) => void): void => {
     if (rendererAvailChannels.includes(channel)) {
-      ipcRenderer.on(channel, (event, ...args) => cbFunc(event, ...args))
+      ipcRenderer.on(channel, listener)
     } else {
-      throw new Error(`Receive failed: Unknown ipc channel name: ${channel}`)
+      throw new Error(`Unknown ipc channel name: ${channel}`)
+    }
+  },
+  once: (channel: string, listener: (event: IpcRendererEvent, ...args: any[]) => void): void => {
+    if (rendererAvailChannels.includes(channel)) {
+      ipcRenderer.once(channel, listener)
+    } else {
+      throw new Error(`Unknown ipc channel name: ${channel}`)
+    }
+  },
+  off: (channel: string, listener: (event: IpcRendererEvent, ...args: any[]) => void): void => {
+    if (rendererAvailChannels.includes(channel)) {
+      ipcRenderer.off(channel, listener)
+    } else {
+      throw new Error(`Unknown ipc channel name: ${channel}`)
     }
   },
   invoke: async (channel: string, ...data: any[]): Promise<any> => {
@@ -25,6 +46,6 @@ contextBridge.exposeInMainWorld('mainApi', {
       return result
     }
 
-    throw new Error(`Invoke failed: Unknown ipc channel name: ${channel}`)
+    throw new Error(`Unknown ipc channel name: ${channel}`)
   }
 })