feat(zoom): add zoom control commands to command menu

apps/code/src/main/menu.ts

@@ -25,14 +25,14 @@ import { saveZoomLevel } from "./utils/store";
 // Zoom is measured in Electron "levels" (factor = 1.2 ** level; 0 = 100%).
 // ZOOM_STEP is one Zoom In/Out notch; the bounds clamp the level so a runaway
 // accelerator can't persist an unusable zoom across restarts.
-const ZOOM_STEP = 0.5;
+export const ZOOM_STEP = 0.5;
 const ZOOM_MIN = -3;
 const ZOOM_MAX = 3;
 
 // Apply a zoom change to the focused window and persist the new level so it
 // survives restarts. `delta` adjusts relative to the current level; "reset"
 // returns to 100%.
-function applyZoom(delta: number | "reset"): void {
+export function applyZoom(delta: number | "reset"): void {
   const webContents = BrowserWindow.getFocusedWindow()?.webContents;
   if (!webContents) return;
   const next = delta === "reset" ? 0 : webContents.getZoomLevel() + delta;

apps/code/src/main/platform-adapters/electron-main-window.ts

@@ -1,6 +1,7 @@
 import type { IMainWindow } from "@posthog/platform/main-window";
 import { app, type BrowserWindow } from "electron";
 import { injectable } from "inversify";
+import { applyZoom, ZOOM_STEP } from "../menu";
 
 @injectable()
 export class ElectronMainWindow implements IMainWindow {
@@ -35,4 +36,16 @@ export class ElectronMainWindow implements IMainWindow {
     app.on("browser-window-focus", listener);
     return () => app.off("browser-window-focus", listener);
   }
+
+  public zoomIn(): void {
+    applyZoom(ZOOM_STEP);
+  }
+
+  public zoomOut(): void {
+    applyZoom(-ZOOM_STEP);
+  }
+
+  public resetZoom(): void {
+    applyZoom("reset");
+  }
 }

packages/host-router/src/routers/os.router.ts

@@ -1,4 +1,8 @@
 import { publicProcedure, router } from "@posthog/host-trpc/trpc";
+import {
+  type IMainWindow,
+  MAIN_WINDOW_SERVICE,
+} from "@posthog/platform/main-window";
 import { OS_SERVICE } from "@posthog/workspace-server/services/os/identifiers";
 import type { OsService } from "@posthog/workspace-server/services/os/os";
 import {
@@ -120,4 +124,16 @@ export const osRouter = router({
         .get<OsService>(OS_SERVICE)
         .saveClipboardFile(input.base64Data, input.originalName),
     ),
+
+  zoomIn: publicProcedure.mutation(({ ctx }) =>
+    ctx.container.get<IMainWindow>(MAIN_WINDOW_SERVICE).zoomIn(),
+  ),
+
+  zoomOut: publicProcedure.mutation(({ ctx }) =>
+    ctx.container.get<IMainWindow>(MAIN_WINDOW_SERVICE).zoomOut(),
+  ),
+
+  resetZoom: publicProcedure.mutation(({ ctx }) =>
+    ctx.container.get<IMainWindow>(MAIN_WINDOW_SERVICE).resetZoom(),
+  ),
 });

packages/platform/src/main-window.ts

@@ -4,6 +4,9 @@ export interface IMainWindow {
   isMinimized(): boolean;
   restore(): void;
   onFocus(handler: () => void): () => void;
+  zoomIn(): void;
+  zoomOut(): void;
+  resetZoom(): void;
 }
 
 export const MAIN_WINDOW_SERVICE = Symbol.for("posthog.platform.mainWindow");

packages/shared/src/analytics-events.ts

@@ -56,7 +56,10 @@ export type CommandMenuAction =
   | "search-files"
   | "open-file"
   | "reload-window"
-  | "show-log-folder";
+  | "show-log-folder"
+  | "zoom-in"
+  | "zoom-out"
+  | "zoom-reset";
 
 // Event property interfaces
 export interface TaskListViewProperties {

packages/ui/src/features/command/CommandMenu.tsx

@@ -4,6 +4,11 @@ import {
   EnvelopeSimple,
   HashIcon,
 } from "@phosphor-icons/react";
+import { resolveService } from "@posthog/di/container";
+import {
+  HOST_TRPC_CLIENT,
+  type HostTrpcClient,
+} from "@posthog/host-router/client";
 import {
   Autocomplete,
   AutocompleteCollection,
@@ -66,6 +71,8 @@ import {
   ReloadIcon,
   SunIcon,
   ViewVerticalIcon,
+  ZoomInIcon,
+  ZoomOutIcon,
 } from "@radix-ui/react-icons";
 import { useCallback, useEffect, useMemo, useState } from "react";
 
@@ -350,9 +357,49 @@ export function CommandMenu({ open, onOpenChange }: CommandMenuProps) {
       },
     ];
 
+    const viewCommands: Command[] = [
+      {
+        id: "zoom-in",
+        label: "Zoom in",
+        keywords: "zoom increase larger",
+        icon: <ZoomInIcon className="h-3 w-3 text-gray-11" />,
+        action: "zoom-in",
+        shortcut: SHORTCUTS.ZOOM_IN,
+        onRun: () =>
+          void resolveService<HostTrpcClient>(
+            HOST_TRPC_CLIENT,
+          ).os.zoomIn.mutate(),
+      },
+      {
+        id: "zoom-out",
+        label: "Zoom out",
+        keywords: "zoom decrease smaller",
+        icon: <ZoomOutIcon className="h-3 w-3 text-gray-11" />,
+        action: "zoom-out",
+        shortcut: SHORTCUTS.ZOOM_OUT,
+        onRun: () =>
+          void resolveService<HostTrpcClient>(
+            HOST_TRPC_CLIENT,
+          ).os.zoomOut.mutate(),
+      },
+      {
+        id: "zoom-reset",
+        label: "Reset zoom",
+        keywords: "zoom actual size default",
+        icon: <MagnifyingGlassIcon className="h-3 w-3 text-gray-11" />,
+        action: "zoom-reset",
+        shortcut: SHORTCUTS.RESET_ZOOM,
+        onRun: () =>
+          void resolveService<HostTrpcClient>(
+            HOST_TRPC_CLIENT,
+          ).os.resetZoom.mutate(),
+      },
+    ];
+
     const out: CommandSection[] = [
       { label: "Actions", items: actions },
       { label: "Navigation", items: navigation },
+      { label: "View", items: viewCommands },
       { label: "Developer", items: developer },
     ];
 

packages/ui/src/features/command/keyboard-shortcuts.ts

@@ -30,6 +30,9 @@ export const SHORTCUTS = {
   SUBMIT_BLUR: "mod+enter",
   SWITCH_MESSAGING_MODE: "mod+s",
   RELOAD_WINDOW: "mod+shift+r",
+  ZOOM_IN: "mod+=",
+  ZOOM_OUT: "mod+-",
+  RESET_ZOOM: "mod+0",
 } as const;
 
 export type ShortcutCategory = "general" | "navigation" | "panels" | "editor";
@@ -69,6 +72,24 @@ export const KEYBOARD_SHORTCUTS: KeyboardShortcut[] = [
     description: "Show keyboard shortcuts",
     category: "general",
   },
+  {
+    id: "zoom-in",
+    keys: SHORTCUTS.ZOOM_IN,
+    description: "Zoom in",
+    category: "general",
+  },
+  {
+    id: "zoom-out",
+    keys: SHORTCUTS.ZOOM_OUT,
+    description: "Zoom out",
+    category: "general",
+  },
+  {
+    id: "reset-zoom",
+    keys: SHORTCUTS.RESET_ZOOM,
+    description: "Reset zoom",
+    category: "general",
+  },
   {
     id: "switch-messaging-mode",
     keys: SHORTCUTS.SWITCH_MESSAGING_MODE,
@@ -264,6 +285,8 @@ function formatKey(key: string): string {
   if (k === ",") return ",";
   if (k === "[") return "[";
   if (k === "]") return "]";
+  if (k === "=") return "+";
+  if (k === "-") return "-";
   if (k === "tab") return "Tab";
   return k.toUpperCase();
 }