React 및 Sass를 사용하여 사용자 정의 가능한 프런트엔드 스타일을 구현하는 방법

npm install node-sass --save-dev

import React from 'react';
import './App.scss';

class App extends React.Component {
  render() {
    return (
      <div className="App">
        {/* 组件内容 */}
      </div>
    );
  }
}

export default App;

// colors.scss

$primary-color: #007bff;
$secondary-color: #6c757d;
$success-color: #28a745;
// 其他颜色定义

// App.scss

@import 'colors';

.App {
  background-color: $primary-color;
  color: $secondary-color;
}

// button.scss

@mixin button {
  display: inline-block;
  padding: 10px 20px;
  background-color: $primary-color;
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  // 其他样式定义
}

// App.scss

@import 'button';

.App {
  .my-button {
    @include button;
    // 其他样式定义
  }
}

// input.scss

.input-base {
  display: block;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
  // 其他样式定义
}

// App.scss

@import 'input';

.App {
  .my-input {
    @extend .input-base;
    // 其他样式定义
  }
}

// themes.scss

$default-theme-primary-color: #007bff;
$default-theme-secondary-color: #6c757d;

$dark-theme-primary-color: #343a40;
$dark-theme-secondary-color: #adb5bd;

// theme.scss

@mixin set-theme($primary, $secondary) {
  $primary-color: $primary;
  $secondary-color: $secondary;
}

// App.scss

@import 'themes';
@import 'theme';

.App {
  .my-input {
    // 其他样式定义
    &.dark-theme {
      @include set-theme($dark-theme-primary-color, $dark-theme-secondary-color);
    }
  }
}

// App.js

import React from 'react';
import './App.scss';

class App extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
        darkTheme: false,
    };
  }
  
  toggleTheme = () => {
    this.setState(prevState => ({
      darkTheme: !prevState.darkTheme,
    }));
  }
  
  render() {
    const { darkTheme } = this.state;
    
    return (
      <div className={`App ${darkTheme ? 'dark-theme' : ''}`}>
        <button onClick={this.toggleTheme}>Toggle Theme</button>
        <input type="text" className="my-input" />
      </div>
    );
  }
}

export default App;