From 40e7af4725bdb75629ca3f57e292941653d276e3 Mon Sep 17 00:00:00 2001
From: Ethan Dickson <ethan@coder.com>
Date: Tue, 12 Aug 2025 13:28:09 +1000
Subject: [PATCH] feat: dynamically show app in dock & cmd+tab

---
 .../Coder-Desktop/Coder_DesktopApp.swift      |  3 +++
 Coder-Desktop/Coder-Desktop/Views/Util.swift  | 23 +++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/Coder-Desktop/Coder-Desktop/Coder_DesktopApp.swift b/Coder-Desktop/Coder-Desktop/Coder_DesktopApp.swift
index d3deab21..eab01ea2 100644
--- a/Coder-Desktop/Coder-Desktop/Coder_DesktopApp.swift
+++ b/Coder-Desktop/Coder-Desktop/Coder_DesktopApp.swift
@@ -20,6 +20,7 @@ struct DesktopApp: App {
         Window("Sign In", id: Windows.login.rawValue) {
             LoginForm()
                 .environmentObject(appDelegate.state)
+                .showDockIconWhenOpen()
         }.handlesExternalEvents(matching: Set()) // Don't handle deep links
             .windowResizability(.contentSize)
         SwiftUI.Settings {
@@ -27,6 +28,7 @@ struct DesktopApp: App {
                 .environmentObject(appDelegate.vpn)
                 .environmentObject(appDelegate.state)
                 .environmentObject(appDelegate.autoUpdater)
+                .showDockIconWhenOpen()
         }
         .windowResizability(.contentSize)
         Window("Coder File Sync", id: Windows.fileSync.rawValue) {
@@ -34,6 +36,7 @@ struct DesktopApp: App {
                 .environmentObject(appDelegate.state)
                 .environmentObject(appDelegate.fileSyncDaemon)
                 .environmentObject(appDelegate.vpn)
+                .showDockIconWhenOpen()
         }.handlesExternalEvents(matching: Set()) // Don't handle deep links
     }
 }
diff --git a/Coder-Desktop/Coder-Desktop/Views/Util.swift b/Coder-Desktop/Coder-Desktop/Views/Util.swift
index 69981a25..10d07479 100644
--- a/Coder-Desktop/Coder-Desktop/Views/Util.swift
+++ b/Coder-Desktop/Coder-Desktop/Views/Util.swift
@@ -44,3 +44,26 @@ public extension View {
         }
     }
 }
+
+@MainActor
+private struct ActivationPolicyModifier: ViewModifier {
+    func body(content: Content) -> some View {
+        content
+            // This lets us show and hide the app from the dock and cmd+tab
+            // when a window is open.
+            .onAppear {
+                NSApp.setActivationPolicy(.regular)
+            }
+            .onDisappear {
+                if NSApp.windows.filter { $0.level != .statusBar && $0.isVisible }.count <= 1 {
+                    NSApp.setActivationPolicy(.accessory)
+                }
+            }
+    }
+}
+
+public extension View {
+    func showDockIconWhenOpen() -> some View {
+        modifier(ActivationPolicyModifier())
+    }
+}