[Menu] CheckboxItem component

docs/data/api/menu-checkbox-item-indicator.json

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+{
+  "props": {
+    "className": { "type": { "name": "union", "description": "func<br>&#124;&nbsp;string" } },
+    "keepMounted": { "type": { "name": "bool" }, "default": "true" },
+    "render": { "type": { "name": "union", "description": "element<br>&#124;&nbsp;func" } }
+  },
+  "name": "MenuCheckboxItemIndicator",
+  "imports": [
+    "import * as Menu from '@base_ui/react/Menu';\nconst MenuCheckboxItemIndicator = Menu.CheckboxItemIndicator;"
+  ],
+  "classes": [],
+  "spread": true,
+  "themeDefaultProps": true,
+  "muiName": "MenuCheckboxItemIndicator",
+  "forwardsRefTo": "HTMLSpanElement",
+  "filename": "/packages/mui-base/src/Menu/CheckboxItemIndicator/MenuCheckboxItemIndicator.tsx",
+  "inheritance": null,
+  "demos": "<ul><li><a href=\"/components/react-menu/\">Menu</a></li></ul>",
+  "cssComponent": false
+}

docs/data/api/menu-checkbox-item.json

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+{
+  "props": {
+    "closeOnClick": { "type": { "name": "bool" }, "default": "true" },
+    "disabled": { "type": { "name": "bool" }, "default": "false" },
+    "id": { "type": { "name": "string" } },
+    "label": { "type": { "name": "string" } },
+    "onClick": { "type": { "name": "func" } }
+  },
+  "name": "MenuCheckboxItem",
+  "imports": [
+    "import * as Menu from '@base_ui/react/Menu';\nconst MenuCheckboxItem = Menu.CheckboxItem;"
+  ],
+  "classes": [],
+  "spread": true,
+  "themeDefaultProps": true,
+  "muiName": "MenuCheckboxItem",
+  "forwardsRefTo": "HTMLDivElement",
+  "filename": "/packages/mui-base/src/Menu/CheckboxItem/MenuCheckboxItem.tsx",
+  "inheritance": null,
+  "demos": "<ul><li><a href=\"/components/react-menu/\">Menu</a></li></ul>",
+  "cssComponent": false
+}

docs/data/components/menu/CheckboxItems.js

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+'use client';
+
+import * as React from 'react';
+import * as Menu from '@base_ui/react/Menu';
+import { styled } from '@mui/system';
+
+export default function CheckboxItems() {
+  const createHandleMenuClick = (menuItem) => {
+    return () => {
+      console.log(`Clicked on ${menuItem}`);
+    };
+  };
+
+  return (
+    <Menu.Root>
+      <MenuButton>My account</MenuButton>
+      <MenuPositioner alignment="start" keepMounted>
+        <MenuPopup>
+          <MenuItem onClick={createHandleMenuClick('Profile')}>Profile</MenuItem>
+          <MenuItem onClick={createHandleMenuClick('Language settings')}>
+            Language settings
+          </MenuItem>
+          <CheckboxItem>
+            <Indicator />
+            Mute notifications
+          </CheckboxItem>
+          <CheckboxItem defaultChecked>
+            <Indicator />
+            Enable preview features
+          </CheckboxItem>
+          <MenuItem onClick={createHandleMenuClick('Log out')}>Log out</MenuItem>
+        </MenuPopup>
+      </MenuPositioner>
+    </Menu.Root>
+  );
+}
+
+const blue = {
+  50: '#F0F7FF',
+  100: '#C2E0FF',
+  200: '#99CCF3',
+  300: '#66B2FF',
+  400: '#3399FF',
+  500: '#007FFF',
+  600: '#0072E6',
+  700: '#0059B3',
+  800: '#004C99',
+  900: '#003A75',
+};
+
+const grey = {
+  50: '#F3F6F9',
+  100: '#E5EAF2',
+  200: '#DAE2ED',
+  300: '#C7D0DD',
+  400: '#B0B8C4',
+  500: '#9DA8B7',
+  600: '#6B7A90',
+  700: '#434D5B',
+  800: '#303740',
+  900: '#1C2025',
+};
+
+const MenuPopup = styled(Menu.Popup)(
+  ({ theme }) => `
+  font-family: 'IBM Plex Sans', sans-serif;
+  font-size: 0.875rem;
+  box-sizing: border-box;
+  padding: 6px;
+  margin: 12px 0;
+  min-width: 200px;
+  border-radius: 12px;
+  overflow: auto;
+  outline: 0;
+  background: ${theme.palette.mode === 'dark' ? grey[900] : '#fff'};
+  border: 1px solid ${theme.palette.mode === 'dark' ? grey[700] : grey[200]};
+  color: ${theme.palette.mode === 'dark' ? grey[300] : grey[900]};
+  box-shadow: 0px 4px 30px ${theme.palette.mode === 'dark' ? grey[900] : grey[200]};
+  z-index: 1;
+  transform-origin: var(--transform-origin);
+  opacity: 0;
+  transform: scale(0.8);
+  transition: opacity 100ms ease-in, transform 100ms ease-in;
+
+  &[data-menu='open'] {
+    opacity: 1;
+    transform: scale(1);
+  }
+  `,
+);
+
+const MenuItem = styled(Menu.Item)(
+  ({ theme }) => `
+  list-style: none;
+  padding: 8px;
+  border-radius: 8px;
+  cursor: default;
+  user-select: none;
+
+  &:last-of-type {
+    border-bottom: none;
+  }
+
+  &:focus {
+    outline: 3px solid ${theme.palette.mode === 'dark' ? blue[600] : blue[200]};
+    background-color: ${theme.palette.mode === 'dark' ? grey[800] : grey[100]};
+    color: ${theme.palette.mode === 'dark' ? grey[300] : grey[900]};
+  }
+
+  &.[data-disabled] {
+    color: ${theme.palette.mode === 'dark' ? grey[700] : grey[400]};
+  }
+  `,
+);
+
+const CheckboxItem = styled(Menu.CheckboxItem)(
+  ({ theme }) => `
+  list-style: none;
+  padding: 8px;
+  border-radius: 8px;
+  cursor: default;
+  user-select: none;
+
+  &:last-of-type {
+    border-bottom: none;
+  }
+
+  &:focus {
+    outline: 3px solid ${theme.palette.mode === 'dark' ? blue[600] : blue[200]};
+    background-color: ${theme.palette.mode === 'dark' ? grey[800] : grey[100]};
+    color: ${theme.palette.mode === 'dark' ? grey[300] : grey[900]};
+  }
+
+  &[data-disabled] {
+    color: ${theme.palette.mode === 'dark' ? grey[700] : grey[400]};
+  }
+  `,
+);
+
+const Indicator = styled(Menu.CheckboxItemIndicator)(
+  ({ theme }) => `
+  display: inline-block;
+  width: 0.75rem;
+  height: 0.75rem;
+  border: 1px solid;
+  vertical-align: baseline;
+  margin-right: 8px;
+  border-color: ${theme.palette.mode === 'dark' ? grey[800] : grey[700]};
+  box-sizing: border-box;
+  border-radius: 2px;
+
+
+  &[data-checkboxitem=checked] {
+    background: ${theme.palette.mode === 'dark' ? grey[800] : grey[700]};
+    box-shadow: 0 0 0 2px ${theme.palette.mode === 'dark' ? grey[900] : '#fff'} inset;
+  }
+  `,
+);
+
+const MenuButton = styled(Menu.Trigger)(
+  ({ theme }) => `
+  font-family: 'IBM Plex Sans', sans-serif;
+  font-weight: 600;
+  font-size: 0.875rem;
+  line-height: 1.5;
+  padding: 8px 16px;
+  border-radius: 8px;
+  color: white;
+  transition: all 150ms ease;
+  cursor: pointer;
+  background: ${theme.palette.mode === 'dark' ? grey[900] : '#fff'};
+  border: 1px solid ${theme.palette.mode === 'dark' ? grey[700] : grey[200]};
+  color: ${theme.palette.mode === 'dark' ? grey[200] : grey[900]};
+  box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
+
+  &:hover {
+    background: ${theme.palette.mode === 'dark' ? grey[800] : grey[50]};
+    border-color: ${theme.palette.mode === 'dark' ? grey[600] : grey[300]};
+  }
+
+  &:active {
+    background: ${theme.palette.mode === 'dark' ? grey[700] : grey[100]};
+  }
+
+  &:focus-visible {
+    box-shadow: 0 0 0 4px ${theme.palette.mode === 'dark' ? blue[300] : blue[200]};
+    outline: none;
+  }
+  `,
+);
+
+const MenuPositioner = styled(Menu.Positioner)`
+  &:focus-visible {
+    outline: 0;
+  }
+
+  &[data-menu='closed'] {
+    pointer-events: none;
+  }
+`;