Add initial experimental UI based on MUI

src/apps/experimental/components/tabs/AppTabs.tsx

@@ -0,0 +1,78 @@
+import { Theme } from '@mui/material/styles';
+import Tab from '@mui/material/Tab';
+import Tabs from '@mui/material/Tabs';
+import useMediaQuery from '@mui/material/useMediaQuery';
+import React, { FC, useCallback } from 'react';
+import { Route, Routes, useLocation, useSearchParams } from 'react-router-dom';
+
+import TabRoutes, { getDefaultTabIndex } from './tabRoutes';
+
+const AppTabs: FC = () => {
+    const isBigScreen = useMediaQuery((theme: Theme) => theme.breakpoints.up('sm'));
+    const location = useLocation();
+    const [ searchParams, setSearchParams ] = useSearchParams();
+    const searchParamsTab = searchParams.get('tab');
+    const libraryId = location.pathname === '/livetv.html' ?
+        'livetv' : searchParams.get('topParentId');
+    const activeTab = searchParamsTab !== null ?
+        parseInt(searchParamsTab, 10) :
+        getDefaultTabIndex(location.pathname, libraryId);
+
+    const onTabClick = useCallback((event: React.MouseEvent<HTMLElement>) => {
+        event.preventDefault();
+
+        const tabIndex = event.currentTarget.dataset.tabIndex;
+
+        if (tabIndex) {
+            searchParams.set('tab', tabIndex);
+            setSearchParams(searchParams);
+        }
+    }, [ searchParams, setSearchParams ]);
+
+    return (
+        <Routes>
+            {
+                TabRoutes.map(route => (
+                    <Route
+                        key={route.path}
+                        path={route.path}
+                        element={
+                            <Tabs
+                                value={activeTab}
+                                sx={{
+                                    width: '100%',
+                                    flexShrink: {
+                                        xs: 0,
+                                        lg: 'unset'
+                                    },
+                                    order: {
+                                        xs: 100,
+                                        lg: 'unset'
+                                    }
+                                }}
+                                variant={isBigScreen ? 'standard' : 'scrollable'}
+                                centered={isBigScreen}
+                            >
+                                {
+                                    route.tabs.map(({ index, label }) => (
+                                        <Tab
+                                            key={`${route}-tab-${index}`}
+                                            label={label}
+                                            data-tab-index={`${index}`}
+                                            onClick={onTabClick}
+                                        />
+                                    ))
+                                }
+                            </Tabs>
+                        }
+                    />
+                ))
+            }
+
+            {/* Suppress warnings for unhandled routes */}
+            <Route path='*' element={null} />
+        </Routes>
+    );
+};
+
+export default AppTabs;