fix resize (both keyboard and mouse should work)

main.js

@@ -1,11 +1,38 @@
-const { app, BrowserWindow, Menu } = require('electron');
+const { app, BrowserWindow, Menu, ipcMain } = require('electron');
+
+let zoomLevel = 0;
+const MIN_ZOOM = -5;
+const MAX_ZOOM = 5;
+
 function createWindow() {
   const win = new BrowserWindow({
     width: 1200,
     height: 800,
+    webPreferences: {
+      preload: __dirname + '/preload.js',
+    },
   });
   win.loadURL('https://bsd.pm/noiz/');
+
+  ipcMain.on('zoom-in', () => {
+    if (zoomLevel < MAX_ZOOM) {
+      zoomLevel += 1;
+      win.webContents.setZoomLevel(zoomLevel);
+    }
+  });
+
+  ipcMain.on('zoom-out', () => {
+    if (zoomLevel > MIN_ZOOM) {
+      zoomLevel -= 1;
+      win.webContents.setZoomLevel(zoomLevel);
+    }
+  });
+
+  ipcMain.on('zoom-reset', () => {
+    zoomLevel = 0;
+    win.webContents.setZoomLevel(0);
+  });
 }
+
 Menu.setApplicationMenu(null);
 app.whenReady().then(createWindow);
-

preload.js

@@ -0,0 +1,30 @@
+const { ipcRenderer } = require('electron');
+
+document.addEventListener('keydown', (e) => {
+  if (!e.ctrlKey) return;
+  switch (e.key) {
+    case '=':
+    case '+':
+      e.preventDefault();
+      ipcRenderer.send('zoom-in');
+      break;
+    case '-':
+      e.preventDefault();
+      ipcRenderer.send('zoom-out');
+      break;
+    case '0':
+      e.preventDefault();
+      ipcRenderer.send('zoom-reset');
+      break;
+  }
+});
+
+document.addEventListener('wheel', (e) => {
+  if (!e.ctrlKey) return;
+  e.preventDefault();
+  if (e.deltaY < 0) {
+    ipcRenderer.send('zoom-in');
+  } else if (e.deltaY > 0) {
+    ipcRenderer.send('zoom-out');
+  }
+}, { passive: false });