Fix focus mode tab padding

packages/app/src/utils/desktop-window.test.ts

@@ -1,5 +1,8 @@
 import { describe, expect, it } from "vitest";
-import { resolveWindowControlsPadding } from "@/utils/desktop-window";
+import {
+  resolveRawWindowControlsPadding,
+  resolveWindowControlsPadding,
+} from "@/utils/desktop-window";
 
 const rawPadding = {
   left: 80,
@@ -8,6 +11,36 @@ const rawPadding = {
 };
 
 describe("resolveWindowControlsPadding", () => {
+  it("keeps mac traffic-light padding available when the app window is not fullscreen", () => {
+    expect(
+      resolveRawWindowControlsPadding({ isElectron: true, isMac: true, isFullscreen: false }),
+    ).toEqual({
+      left: 78,
+      right: 0,
+      top: 45,
+    });
+  });
+
+  it("keeps Windows and Linux window-control padding available when the app window is not fullscreen", () => {
+    expect(
+      resolveRawWindowControlsPadding({ isElectron: true, isMac: false, isFullscreen: false }),
+    ).toEqual({
+      left: 0,
+      right: 140,
+      top: 48,
+    });
+  });
+
+  it("does not reserve window-control padding when the app window is fullscreen", () => {
+    expect(
+      resolveRawWindowControlsPadding({ isElectron: true, isMac: true, isFullscreen: true }),
+    ).toEqual({
+      left: 0,
+      right: 0,
+      top: 0,
+    });
+  });
+
   it("pads the main header for window controls when the app sidebar is closed", () => {
     expect(
       resolveWindowControlsPadding({
@@ -39,4 +72,36 @@ describe("resolveWindowControlsPadding", () => {
       top: 0,
     });
   });
+
+  it("pads a focus-mode tab row away from mac traffic lights even when the sidebar is logically open", () => {
+    expect(
+      resolveWindowControlsPadding({
+        role: "tabRow",
+        rawPadding,
+        sidebarClosed: false,
+        explorerOpen: false,
+        focusModeEnabled: true,
+      }),
+    ).toEqual({
+      left: 80,
+      right: 48,
+      top: 0,
+    });
+  });
+
+  it("pads a focus-mode tab row away from right-side window controls even when the explorer is logically open", () => {
+    expect(
+      resolveWindowControlsPadding({
+        role: "tabRow",
+        rawPadding: { left: 0, right: 140, top: 48 },
+        sidebarClosed: true,
+        explorerOpen: true,
+        focusModeEnabled: true,
+      }),
+    ).toEqual({
+      left: 0,
+      right: 140,
+      top: 0,
+    });
+  });
 });