React 공부하기(2) - styled-components

🎉 벨로퍼트와 함께하는 모던 리액트

CSS in JS

$ yarn add styled-components

import styled from 'styled-components'

[polished의 스타일 관련 유틸 함수 사용하기] lighten() darken()

$ yarn add polished

import { darken, lighten } from 'polished';

import React from 'react';
import styled from 'styled-components';
import { darken, lighten } from 'polished';

const StyledButton = styled.button`
  /* 공통 스타일 */
  display: inline-flex;
  outline: none;
  border: none;
  border-radius: 4px;
  color: white;
  font-weight: bold;
  cursor: pointer;
  padding-left: 1rem;
  padding-right: 1rem;

  /* 크기 */
  height: 2.25rem;
  font-size: 1rem;

  /* 색상 */
  background: #228be6;
  &:hover {
    background: ${lighten(0.1, '#228be6')};
  }
  &:active {
    background: ${darken(0.1, '#228be6')};
  }

  /* 기타 */
  & + & {
    margin-left: 1rem;
  }
`;

function Button({ children, ...rest }) {
  return <StyledButton {...rest}>{children}</StyledButton>;
}

export default Button;

<App.js>

import React from 'react';
import styled from 'styled-components';
import Button from './components/Button';

const AppBlock = styled.div`
  width: 512px;
  margin: 0 auto;
  margin-top: 4rem;
  border: 1px solid black;
  padding: 1rem;
`;

function App() {
  return (
    <AppBlock>
      <Button>BUTTON</Button>
    </AppBlock>
  );
}

export default App;

[ThemeProvider] 모든 컴포넌트에서 조회하여 사용할 수 있는 전역값 설정

import styled, { ThemeProvider } from 'styled-components';

import styled, { css } from 'styled-components';

import React from 'react';
import styled, { css } from 'styled-components';
import { darken, lighten } from 'polished';

const StyledButton = styled.button`
  /* 공통 스타일 */
  display: inline-flex;
  outline: none;
  border: none;
  border-radius: 4px;
  color: white;
  font-weight: bold;
  cursor: pointer;
  padding-left: 1rem;
  padding-right: 1rem;

  /* 크기 */
  height: 2.25rem;
  font-size: 1rem;

  /* 색상 */
  ${({ theme, color }) => {
    const selected = theme.palette[color];
    return css`
      background: ${selected};
      &:hover {
        background: ${lighten(0.1, selected)};
      }
      &:active {
        background: ${darken(0.1, selected)};
      }
    `;
  }}

  /* 기타 */
  & + & {
    margin-left: 1rem;
  }
`;

function Button({ children, color, ...rest }) {
  return <StyledButton color={color} {...rest}>{children}</StyledButton>;
}

Button.defaultProps = {
  color: 'blue'
};

export default Button;

(코드 분리하면?)

import React from 'react';
import styled, { css } from 'styled-components';
import { darken, lighten } from 'polished';

const colorStyles = css`
  ${({ theme, color }) => {
    const selected = theme.palette[color];
    return css`
      background: ${selected};
      &:hover {
        background: ${lighten(0.1, selected)};
      }
      &:active {
        background: ${darken(0.1, selected)};
      }
    `;
  }}
`;

const sizeStyles = css`
  ${props =>
    props.size === 'large' &&
    css`
      height: 3rem;
      font-size: 1.25rem;
    `}

  ${props =>
    props.size === 'medium' &&
    css`
      height: 2.25rem;
      font-size: 1rem;
    `}

    ${props =>
      props.size === 'small' &&
      css`
        height: 1.75rem;
        font-size: 0.875rem;
      `}
`;

const StyledButton = styled.button`
  /* 공통 스타일 */
  display: inline-flex;
  outline: none;
  border: none;
  border-radius: 4px;
  color: white;
  font-weight: bold;
  cursor: pointer;
  padding-left: 1rem;
  padding-right: 1rem;

  /* 크기 */
  ${sizeStyles}

  /* 색상 */
  ${colorStyles}

  /* 기타 */
  & + & {
    margin-left: 1rem;
  }
`;

function Button({ children, color, size,  ...rest }) {
  return (
    <StyledButton color={color} size={size} {...rest}>
      {children}
    </StyledButton>
  );
}

Button.defaultProps = {
  color: 'blue'
};

export default Button;

(sizeStyles 중복 해결)

import React from 'react';
import styled, { css } from 'styled-components';
import { darken, lighten } from 'polished';

const colorStyles = css`
  ${({ theme, color }) => {
    const selected = theme.palette[color];
    return css`
      background: ${selected};
      &:hover {
        background: ${lighten(0.1, selected)};
      }
      &:active {
        background: ${darken(0.1, selected)};
      }
      ${props =>
        props.outline &&
        css`
          color: ${selected};
          background: none;
          border: 1px solid ${selected};
          &:hover {
            background: ${selected};
            color: white;
          }
        `}
    `;
  }}
`;

const sizes = {
  large: {
    height: '3rem',
    fontSize: '1.25rem'
  },
  medium: {
    height: '2.25rem',
    fontSize: '1rem'
  },
  small: {
    height: '1.75rem',
    fontSize: '0.875rem'
  }
};

const sizeStyles = css`
  ${({ size }) => css`
    height: ${sizes[size].height};
    font-size: ${sizes[size].fontSize};
  `}
`;

const fullWidthStyle = css`
  ${props =>
    props.fullWidth &&
    css`
      width: 100%;
      justify-content: center;
      & + & {
        margin-left: 0;
        margin-top: 1rem;
      }
    `}
`;

const StyledButton = styled.button`
  /* 공통 스타일 */
  display: inline-flex;
  outline: none;
  border: none;
  border-radius: 4px;
  color: white;
  font-weight: bold;
  cursor: pointer;
  padding-left: 1rem;
  padding-right: 1rem;

  /* 크기 */
  ${sizeStyles}

  /* 색상 */
  ${colorStyles}

  /* 기타 */
  & + & {
    margin-left: 1rem;
  }

  ${fullWidthStyle}
`;

function Button({ children, color, size, outline, fullWidth, ...rest }) {
  return (
    <StyledButton
      color={color}
      size={size}
      outline={outline}
      fullWidth={fullWidth}
      {...rest}
    >
      {children}
    </StyledButton>
  );
}

Button.defaultProps = {
  color: 'blue',
  size: 'medium'
};

export default Button;

<App.js>

import React from 'react';
import styled, { ThemeProvider } from 'styled-components';
import Button from './components/Button';

const AppBlock = styled.div`
  width: 512px;
  margin: 0 auto;
  margin-top: 4rem;
  border: 1px solid black;
  padding: 1rem;
`;

const ButtonGroup = styled.div`
  & + & {
    margin-top: 1rem;
  }
`;

function App() {
  return (
    <ThemeProvider
      theme={{
        palette: {
          blue: '#228be6',
          gray: '#495057',
          pink: '#f06595'
        }
      }}
    >
      <AppBlock>
        <ButtonGroup>
          <Button size="large">BUTTON</Button>
          <Button>BUTTON</Button>
          <Button size="small">BUTTON</Button>
        </ButtonGroup>
        <ButtonGroup>
          <Button color="gray" size="large">
            BUTTON
          </Button>
          <Button color="gray">BUTTON</Button>
          <Button color="gray" size="small">
            BUTTON
          </Button>
        </ButtonGroup>
        <ButtonGroup>
          <Button color="pink" size="large">
            BUTTON
          </Button>
          <Button color="pink">BUTTON</Button>
          <Button color="pink" size="small">
            BUTTON
          </Button>
        </ButtonGroup>
        <ButtonGroup>
          <Button size="large" outline>
            BUTTON
          </Button>
          <Button color="gray" outline>
            BUTTON
          </Button>
          <Button color="pink" size="small" outline>
            BUTTON
          </Button>
        </ButtonGroup>
        <ButtonGroup>
          <Button size="large" fullWidth>
            BUTTON
          </Button>
          <Button size="large" color="gray" fullWidth>
            BUTTON
          </Button>
          <Button size="large" color="pink" fullWidth>
            BUTTON
          </Button>
        </ButtonGroup>
      </AppBlock>
    </ThemeProvider>
  );
}

export default App;

[Dialog 만들기]

[구조]

import React from 'react';
import styled from 'styled-components';
import Button from './Button';

const DarkBackground = styled.div`
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.8);
`;

const DialogBlock = styled.div`
  width: 320px;
  padding: 1.5rem;
  background: white;
  border-radius: 2px;
  h3 {
    margin: 0;
    font-size: 1.5rem;
  }
  p {
    font-size: 1.125rem;
  }
`;

const ButtonGroup = styled.div`
  margin-top: 3rem;
  display: flex;
  justify-content: flex-end;
`;

function Dialog({ title, children, confirmText, cancelText }) {
  return (
    <DarkBackground>
      <DialogBlock>
        <h3>{title}</h3>
        <p>{children}</p>
        <ButtonGroup>
          <Button color="gray">{cancelText}</Button>
          <Button color="pink">{confirmText}</Button>
        </ButtonGroup>
      </DialogBlock>
    </DarkBackground>
  );
}

Dialog.defaultProps = {
  confirmText: '확인',
  cancelText: '취소'
};

export default Dialog;

(ShortMarginButton 만들어서 기존 Button 대체하기)

import React from 'react';
import styled from 'styled-components';
import Button from './Button';

const DarkBackground = styled.div`
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.8);
`;

const DialogBlock = styled.div`
  width: 320px;
  padding: 1.5rem;
  background: white;
  border-radius: 2px;
  h3 {
    margin: 0;
    font-size: 1.5rem;
  }
  p {
    font-size: 1.125rem;
  }
`;

const ButtonGroup = styled.div`
  margin-top: 3rem;
  display: flex;
  justify-content: flex-end;
`;

const ShortMarginButton = styled(Button)`
  & + & {
    margin-left: 0.5rem;
  }
`;

function Dialog({ title, children, confirmText, cancelText }) {
  return (
    <DarkBackground>
      <DialogBlock>
        <h3>{title}</h3>
        <p>{children}</p>
        <ButtonGroup>
          <ShortMarginButton color="gray">{cancelText}</ShortMarginButton>
          <ShortMarginButton color="pink">{confirmText}</ShortMarginButton>
        </ButtonGroup>
      </DialogBlock>
    </DarkBackground>
  );
}

Dialog.defaultProps = {
  confirmText: '확인',
  cancelText: '취소'
};

export default Dialog;

<App.js>

import React from 'react';
import styled, { ThemeProvider } from 'styled-components';
import Button from './components/Button';
import Dialog from './components/Dialog';

const AppBlock = styled.div`
  width: 512px;
  margin: 0 auto;
  margin-top: 4rem;
  border: 1px solid black;
  padding: 1rem;
`;

const ButtonGroup = styled.div`
  & + & {
    margin-top: 1rem;
  }
`;

function App() {
  return (
    <ThemeProvider
      theme={{
        palette: {
          blue: '#228be6',
          gray: '#495057',
          pink: '#f06595'
        }
      }}
    >
      <>
        <AppBlock>
          <ButtonGroup>
            <Button size="large">BUTTON</Button>
            <Button>BUTTON</Button>
            <Button size="small">BUTTON</Button>
          </ButtonGroup>
          <ButtonGroup>
            <Button color="gray" size="large">
              BUTTON
            </Button>
            <Button color="gray">BUTTON</Button>
            <Button color="gray" size="small">
              BUTTON
            </Button>
          </ButtonGroup>
          <ButtonGroup>
            <Button color="pink" size="large">
              BUTTON
            </Button>
            <Button color="pink">BUTTON</Button>
            <Button color="pink" size="small">
              BUTTON
            </Button>
          </ButtonGroup>
          <ButtonGroup>
            <Button size="large" outline>
              BUTTON
            </Button>
            <Button color="gray" outline>
              BUTTON
            </Button>
            <Button color="pink" size="small" outline>
              BUTTON
            </Button>
          </ButtonGroup>
          <ButtonGroup>
            <Button size="large" fullWidth>
              BUTTON
            </Button>
            <Button size="large" color="gray" fullWidth>
              BUTTON
            </Button>
            <Button size="large" color="pink" fullWidth>
              BUTTON
            </Button>
          </ButtonGroup>
        </AppBlock>
        <Dialog
          title="정말로 삭제하시겠습니까?"
          confirmText="삭제"
          cancelText="취소"
        >
          데이터를 정말로 삭제하시겠습니까?
        </Dialog>
      </>
    </ThemeProvider>
  );
}

export default App;

[동작] onClick - onConfirm, onCancel / visible = false이면 null 반환 (dialog 안 보임)

import React from 'react';
import styled from 'styled-components';
import Button from './Button';

const DarkBackground = styled.div`
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.8);
`;

const DialogBlock = styled.div`
  width: 320px;
  padding: 1.5rem;
  background: white;
  border-radius: 2px;
  h3 {
    margin: 0;
    font-size: 1.5rem;
  }
  p {
    font-size: 1.125rem;
  }
`;

const ButtonGroup = styled.div`
  margin-top: 3rem;
  display: flex;
  justify-content: flex-end;
`;

const ShortMarginButton = styled(Button)`
  & + & {
    margin-left: 0.5rem;
  }
`;

function Dialog({
  title,
  children,
  confirmText,
  cancelText,
  onConfirm,
  onCancel,
  visible
}) {
  if (!visible) return null;
  return (
    <DarkBackground>
      <DialogBlock>
        <h3>{title}</h3>
        <p>{children}</p>
        <ButtonGroup>
          <ShortMarginButton color="gray" onClick={onCancel}>
            {cancelText}
          </ShortMarginButton>
          <ShortMarginButton color="pink" onClick={onConfirm}>
            {confirmText}
          </ShortMarginButton>
        </ButtonGroup>
      </DialogBlock>
    </DarkBackground>
  );
}

Dialog.defaultProps = {
  confirmText: '확인',
  cancelText: '취소'
};

export default Dialog;

<App.js>

import React, { useState } from 'react';
import styled, { ThemeProvider } from 'styled-components';
import Button from './components/Button';
import Dialog from './components/Dialog';

const AppBlock = styled.div`
  width: 512px;
  margin: 0 auto;
  margin-top: 4rem;
  border: 1px solid black;
  padding: 1rem;
`;

const ButtonGroup = styled.div`
  & + & {
    margin-top: 1rem;
  }
`;

function App() {
  const [dialog, setDialog] = useState(false);
  const onClick = () => {
    setDialog(true);
  };
  const onConfirm = () => {
    console.log('확인');
    setDialog(false);
  };
  const onCancel = () => {
    console.log('취소');
    setDialog(false);
  };

  return (
    <ThemeProvider
      theme={{
        palette: {
          blue: '#228be6',
          gray: '#495057',
          pink: '#f06595'
        }
      }}
    >
      <>
        <AppBlock>
          <ButtonGroup>
            <Button size="large">BUTTON</Button>
            <Button>BUTTON</Button>
            <Button size="small">BUTTON</Button>
          </ButtonGroup>
          <ButtonGroup>
            <Button color="gray" size="large">
              BUTTON
            </Button>
            <Button color="gray">BUTTON</Button>
            <Button color="gray" size="small">
              BUTTON
            </Button>
          </ButtonGroup>
          <ButtonGroup>
            <Button color="pink" size="large">
              BUTTON
            </Button>
            <Button color="pink">BUTTON</Button>
            <Button color="pink" size="small">
              BUTTON
            </Button>
          </ButtonGroup>
          <ButtonGroup>
            <Button size="large" outline>
              BUTTON
            </Button>
            <Button color="gray" outline>
              BUTTON
            </Button>
            <Button color="pink" size="small" outline>
              BUTTON
            </Button>
          </ButtonGroup>
          <ButtonGroup>
            <Button size="large" fullWidth>
              BUTTON
            </Button>
            <Button size="large" color="gray" fullWidth>
              BUTTON
            </Button>
            <Button size="large" color="pink" fullWidth onClick={onClick}>
              삭제
            </Button>
          </ButtonGroup>
        </AppBlock>
        <Dialog
          title="정말로 삭제하시겠습니까?"
          confirmText="삭제"
          cancelText="취소"
          onConfirm={onConfirm}
          onCancel={onCancel}
          visible={dialog}
        >
          데이터를 정말로 삭제하시겠습니까?
        </Dialog>
      </>
    </ThemeProvider>
  );
}

export default App;

[트랜지션 구현하기] keyframes

(Dialog Mount 될 때)

import React from 'react';
import styled, { keyframes } from 'styled-components';
import Button from './Button';

const fadeIn = keyframes`
  from {
    opacity: 0
  }
  to {
    opacity: 1
  }
`;

const slideUp = keyframes`
  from {
    transform: translateY(200px);
  }
  to {
    transform: translateY(0px);
  }
`;

const DarkBackground = styled.div`
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.8);

  animation-duration: 0.25s;
  animation-timing-function: ease-out;
  animation-name: ${fadeIn};
  animation-fill-mode: forwards;
`;

const DialogBlock = styled.div`
  width: 320px;
  padding: 1.5rem;
  background: white;
  border-radius: 2px;
  h3 {
    margin: 0;
    font-size: 1.5rem;
  }
  p {
    font-size: 1.125rem;
  }

  animation-duration: 0.25s;
  animation-timing-function: ease-out;
  animation-name: ${slideUp};
  animation-fill-mode: forwards;
`;

const ButtonGroup = styled.div`
  margin-top: 3rem;
  display: flex;
  justify-content: flex-end;
`;

const ShortMarginButton = styled(Button)`
  & + & {
    margin-left: 0.5rem;
  }
`;

function Dialog({
  title,
  children,
  confirmText,
  cancelText,
  onConfirm,
  onCancel,
  visible
}) {
  if (!visible) return null;
  return (
    <DarkBackground>
      <DialogBlock>
        <h3>{title}</h3>
        <p>{children}</p>
        <ButtonGroup>
          <ShortMarginButton color="gray" onClick={onCancel}>
            {cancelText}
          </ShortMarginButton>
          <ShortMarginButton color="pink" onClick={onConfirm}>
            {confirmText}
          </ShortMarginButton>
        </ButtonGroup>
      </DialogBlock>
    </DarkBackground>
  );
}

Dialog.defaultProps = {
  confirmText: '확인',
  cancelText: '취소'
};

export default Dialog;

(Dialog Unmount 될 때)

'✏️ > React' 카테고리의 다른 글

React 공부하기(5) - 리액트 라우터 (0)	2021.11.05
React 공부하기(4) - API 연동하기 (0)	2021.11.05
React 공부하기(1) - Hooks 종류편 (0)	2021.10.10
React 공부하기(1) - 상태관리 中 배열편 (0)	2021.10.10
React 공부하기(1) - 상태관리편 (0)	2021.10.10

👩‍💻 Hong Yujin

React 공부하기(2) - styled-components

[polished의 스타일 관련 유틸 함수 사용하기] lighten() darken()

[ThemeProvider] 모든 컴포넌트에서 조회하여 사용할 수 있는 전역값 설정

[Dialog 만들기]

[트랜지션 구현하기] keyframes

'✏️ > React' 카테고리의 다른 글

티스토리툴바

React 공부하기(2) - styled-components

[polished의 스타일 관련 유틸 함수 사용하기] lighten() darken()

[ThemeProvider] 모든 컴포넌트에서 조회하여 사용할 수 있는 전역값 설정

[Dialog 만들기]

[트랜지션 구현하기] keyframes

'✏️ > React' 카테고리의 다른 글

'✏️/React' Related Articles

티스토리툴바