Floating Labels

分类：

other

日期:

2022-2-24

标签：

chakra

While Chakra UI doesn't enforce a specific style or design system, it makes it easy to implement what ever style you want yourself. One popular style are the use of floating labels.

This is one way to implement floating labels in your project, it doesn't mean this is the only way to achieve this.

Below is the gist to achieve floating labels.

import {
  ChakraProvider,
  FormControl,
  FormErrorMessage,
  FormHelperText,
  FormLabel,
  Input,
  extendTheme,
  Box
} from "@chakra-ui/react";
const activeLabelStyles = {
  transform: "scale(0.85) translateY(-24px)"
};
export const theme = extendTheme({
  components: {
    Form: {
      variants: {
        floating: {
          container: {
            _focusWithin: {
              label: {
                ...activeLabelStyles
              }
            },
            "input:not(:placeholder-shown) + label, .chakra-select__wrapper + label": {
              ...activeLabelStyles
            },
            label: {
              top: 0,
              left: 0,
              zIndex: 2,
              position: "absolute",
              backgroundColor: "white",
              pointerEvents: "none",
              mx: 3,
              px: 1,
              my: 2,
              transformOrigin: "left top"
            }
          }
        }
      }
    }
  }
});

export default function App() {
  return (
    <ChakraProvider theme={theme}>
      <Box p={8}>
        <FormControl variant="floating" id="first-name" isRequired isInvalid>
          <Input placeholder=" " />
          {/* It is important that the Label comes after the Control due to css selectors */}
          <FormLabel>First name</FormLabel>
          <FormHelperText>Keep it very short and sweet!</FormHelperText>
          <FormErrorMessage>Your First name is invalid</FormErrorMessage>
        </FormControl>
      </Box>
    </ChakraProvider>
  );
}