@bianic-ui/menu

An accessible dropdown menu for the common dropdown menu button design pattern. Menu uses roving tabIndex for focus management.

Installation

yarn add @bianic-ui/menu

# or

npm i @bianic-ui/menu

Import components

import {
  Menu,
  MenuButton,
  MenuList,
  MenuItem,
  MenuGroup,
  MenuDivider,
  MenuOptionGroup,
  MenuItemOption,
} from "@bianic-ui/core"

Usage

<Menu>
  <MenuButton>Actions</MenuButton>
  <MenuList>
    <MenuItem>Download</MenuItem>
    <MenuItem>Create a Copy</MenuItem>
    <MenuItem>Mark as Draft</MenuItem>
    <MenuItem>Delete</MenuItem>
    <MenuItem as="a" href="#">
      Attend a Workshop
    </MenuItem>
  </MenuList>
</Menu>

Accessing the internal state

To access the internal state of the Menu, use a function as a children (commonly known as a render prop). You'll get access to the internal state isOpen and method onClose.

<Menu>
  {({ isOpen }) => (
    <React.Fragment>
      <MenuButton>{isOpen ? "Close" : "Open"}</MenuButton>
      <MenuList>
        <MenuItem>Download</MenuItem>
        <MenuItem onClick={() => alert("Kagebunshin")}>Create a Copy</MenuItem>
      </MenuList>
    </React.Fragment>
  )}
</Menu>

Letter Navigation

When focus is on the MenuButton or within the MenuList and you type a letter key, a search begins. Focus will move to the first MenuItem that starts with the letter you typed.

Open the menu, try and type any letter, say "S" to see the focus movement.

<Menu>
  <MenuButton
    px={4}
    py={2}
    transition="all 0.2s"
    borderRadius="md"
    borderWidth="1px"
    _hover={{ bg: "gray.100" }}
    _expanded={{ bg: "red.200" }}
    _focus={{ outline: 0, boxShadow: "outline" }}
  >
    File <ChevronDownIcon />
  </MenuButton>
  <MenuList>
    <MenuItem>New File</MenuItem>
    <MenuItem>New Window</MenuItem>
    <MenuDivider />
    <MenuItem>Open...</MenuItem>
    <MenuItem>Save File</MenuItem>
  </MenuList>
</Menu>

Just another example.

<Menu>
  <MenuButton>Your Cats</MenuButton>
  <MenuList>
    <MenuItem minH="48px">
      <Image
        size="2rem"
        borderRadius="full"
        src="https://placekitten.com/100/100"
        alt="Fluffybuns the destroyer"
        mr="12px"
      />
      <span>Fluffybuns the Destroyer</span>
    </MenuItem>
    <MenuItem minH="40px">
      <Image
        size="2rem"
        borderRadius="full"
        src="https://placekitten.com/120/120"
        alt="Simon the pensive"
        mr="12px"
      />
      <span>Simon the pensive</span>
    </MenuItem>
  </MenuList>
</Menu>

MenuGroup

To group related MenuItems, use the MenuGroup component and pass it a label for the group name.

<Menu>
  <MenuButton>Profile</MenuButton>
  <MenuList>
    <MenuGroup title="Profile">
      <MenuItem>My Account</MenuItem>
      <MenuItem>Payments </MenuItem>
    </MenuGroup>
    <MenuDivider />
    <MenuGroup title="Help">
      <MenuItem>Docs</MenuItem>
      <MenuItem>FAQ</MenuItem>
    </MenuGroup>
  </MenuList>
</Menu>

Menu option groups

You can compose a menu for table headers to help with sorting and filtering options. Use the MenuOptionGroup and MenuItemOption components.

<Menu closeOnSelect={false}>
  <MenuButton>MenuItem</MenuButton>
  <MenuList minWidth="240px">
    <MenuOptionGroup defaultValue="asc" title="Order" type="radio">
      <MenuItemOption value="asc">Ascending</MenuItemOption>
      <MenuItemOption value="desc">Descending</MenuItemOption>
    </MenuOptionGroup>
    <MenuDivider />
    <MenuOptionGroup title="Country" type="checkbox">
      <MenuItemOption value="email">Email</MenuItemOption>
      <MenuItemOption value="phone">Phone</MenuItemOption>
      <MenuItemOption value="country">Country</MenuItemOption>
    </MenuOptionGroup>
  </MenuList>
</Menu>