fix: layer mobile widget details above header

packages/ui/src/theme/layers.ts

@@ -0,0 +1,5 @@
+import { getDefaultZIndex } from "@mantine/core";
+
+export const appShellHeaderZIndex = getDefaultZIndex("modal") + 1;
+export const modalZIndex = appShellHeaderZIndex + 1;
+export const managedModalZIndex = modalZIndex + 1;

packages/ui/src/theme/modal.spec.ts

@@ -0,0 +1,16 @@
+import { getDefaultZIndex } from "@mantine/core";
+import { describe, expect, test } from "vitest";
+
+import { theme } from "../theme";
+import { appShellHeaderZIndex, managedModalZIndex, modalZIndex } from "./layers";
+import { modalComponent } from "./modal";
+
+describe("application layers", () => {
+  test("keeps dialogs above the fixed header and managed dialogs above regular dialogs", () => {
+    expect(appShellHeaderZIndex).toBe(getDefaultZIndex("modal") + 1);
+    expect(modalZIndex).toBe(appShellHeaderZIndex + 1);
+    expect(managedModalZIndex).toBe(modalZIndex + 1);
+    expect(modalComponent.defaultProps).toMatchObject({ zIndex: modalZIndex });
+    expect(theme.components?.Drawer?.defaultProps).toMatchObject({ zIndex: modalZIndex });
+  });
+});

packages/ui/src/theme/modal.ts

@@ -1,5 +1,7 @@
 import type { MantineTheme, MantineThemeComponent, ModalProps } from "@mantine/core";
 
+import { modalZIndex } from "./layers";
+
 export const modalSizeSelect = "xxl";
 export const modalSizeForm = "lg";
 
@@ -8,6 +10,9 @@ const fixedModalSizes = new Set([modalSizeSelect, modalSizeForm]);
 const modalWidth = "min(var(--modal-size), calc(100vw - 2 * var(--mantine-spacing-md)))";
 
 export const modalComponent: MantineThemeComponent = {
+  defaultProps: {
+    zIndex: modalZIndex,
+  },
   vars: (_theme: MantineTheme, props: Partial<ModalProps>) => {
     if (props.size === modalSizeSelect) {
       return { root: { "--modal-size": "75rem" } };