Added openFile example

src/main/IPCs.ts

@@ -1,4 +1,4 @@
-import { ipcMain, shell, IpcMainEvent } from 'electron'
+import { ipcMain, shell, IpcMainEvent, dialog } from 'electron'
 import Constants from './utils/Constants'
 
 /*
@@ -15,5 +15,21 @@ export default class IPCs {
     ipcMain.on('msgOpenExternalLink', async (event: IpcMainEvent, url: string) => {
       await shell.openExternal(url)
     })
+
+    // Open file
+    ipcMain.handle('msgOpenFile', async (event, filter: string) => {
+      const filters = []
+      if (filter === 'text') {
+        filters.push({ name: 'Text', extensions: ['txt', 'json'] })
+      }
+      if (filter === 'zip') {
+        filters.push({ name: 'Zip', extensions: ['zip'] })
+      }
+      const dialogResult = await dialog.showOpenDialog({
+        properties: ['openFile'],
+        filters
+      })
+      return dialogResult
+    })
   }
 }