artifacts/artifacts_react_test2.html at main · veasion/artifacts · GitHub

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<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>React 实时编译渲染 - 支持第三方库</title>
    <script src="https://unpkg.com/react@18/umd/react.development.js"></script>
    <script src="https://unpkg.com/react-dom@18/umd/react-dom.development.js"></script>
    <script src="https://unpkg.com/@babel/standalone/babel.min.js"></script>
    <style>
        .container { display: flex; height: 100vh; }
        .editor { width: 50%; padding: 20px; }
        .preview { width: 50%; padding: 20px; border-left: 1px solid #ccc; }
        textarea { width: 100%; height: 500px; font-family: monospace; font-size: 14px; }
        button { padding: 8px 16px; margin: 5px; cursor: pointer; }
    </style>
</head>
<body>
    <div class="container">
        <div class="editor">
            <h3>React 代码编辑器</h3>
            <select onchange="loadExample(this.value)">
                <option value="">选择示例</option>
                <option value="card">卡片组件示例</option>
                <option value="antd">Ant Design 示例</option>
            </select>
            <textarea id="codeInput" placeholder="在这里输入 React 代码...">
import React, { useState } from 'react';
import { Card, CardContent, CardHeader } from '@/components/ui/card';

function App() {
  const [count, setCount] = useState(0);

  return (
    <div>
      <h1>带卡片的计数器</h1>
      <Card>
        <CardHeader>
          计数器应用
        </CardHeader>
        <CardContent>
          <h2>当前计数: {count}</h2>
          <div style={{ marginTop: '10px' }}>
            <button onClick={() => setCount(count + 1)} style={{ marginRight: '10px' }}>
              增加
            </button>
            <button onClick={() => setCount(count - 1)} style={{ marginRight: '10px' }}>
              减少
            </button>
            <button onClick={() => setCount(0)}>
              重置
            </button>
          </div>
        </CardContent>
      </Card>
    </div>
  );
}
            </textarea>
            <br>
            <button onclick="renderCode()">渲染代码</button>
        </div>
        <div class="preview">
            <h3>预览</h3>
            <div id="preview"></div>
        </div>
    </div>

    <script>
        // 预置库映射
        const presetLibraries = {
            'react': {
                default: React,
                useState: React.useState,
                useEffect: React.useEffect,
                useCallback: React.useCallback,
                useMemo: React.useMemo,
                useReducer: React.useReducer,
                useContext: React.useContext,
                useRef: React.useRef
            },
            '@/components/ui/card': {
                Card: ({ children, className = '', ...props }) =>
                    React.createElement('div', {
                        className: `card ${className}`,
                        style: {
                            border: '1px solid #e2e8f0',
                            borderRadius: '8px',
                            backgroundColor: 'white',
                            boxShadow: '0 1px 3px rgba(0,0,0,0.1)',
                            margin: '10px 0'
                        },
                        ...props
                    }, children),

                CardHeader: ({ children, className = '', ...props }) =>
                    React.createElement('div', {
                        className: `card-header ${className}`,
                        style: {
                            padding: '16px 20px 0 20px',
                            fontWeight: '600',
                            fontSize: '18px'
                        },
                        ...props
                    }, children),

                CardContent: ({ children, className = '', ...props }) =>
                    React.createElement('div', {
                        className: `card-content ${className}`,
                        style: {
                            padding: '16px 20px 20px 20px'
                        },
                        ...props
                    }, children)
            },

            'antd': {
                Button: ({ children, type = 'default', onClick, ...props }) =>
                    React.createElement('button', {
                        onClick,
                        style: {
                            padding: '8px 16px',
                            border: type === 'primary' ? 'none' : '1px solid #d9d9d9',
                            backgroundColor: type === 'primary' ? '#1890ff' : 'white',
                            color: type === 'primary' ? 'white' : '#000',
                            borderRadius: '4px',
                            cursor: 'pointer',
                            marginRight: '8px'
                        },
                        ...props
                    }, children),

                Card: ({ title, children, ...props }) =>
                    React.createElement('div', {
                        style: {
                            border: '1px solid #f0f0f0',
                            borderRadius: '8px',
                            overflow: 'hidden',
                            margin: '10px 0'
                        },
                        ...props
                    }, [
                        title && React.createElement('div', {
                            key: 'title',
                            style: {
                                padding: '16px',
                                borderBottom: '1px solid #f0f0f0',
                                fontWeight: '500'
                            }
                        }, title),
                        React.createElement('div', {
                            key: 'content',
                            style: { padding: '16px' }
                        }, children)
                    ])
            }
        };

        // 解析导入语句
        function parseImports(code) {
            const imports = {};

            // 更精确的 import 正则表达式
            const patterns = [
                // import React, { useState } from 'react';
                /import\s+(\w+)\s*,\s*{\s*([^}]+)\s*}\s+from\s+['"]([^'"]+)['"];?\s*/g,
                // import { Component1, Component2 } from 'module';
                /import\s*{\s*([^}]+)\s*}\s+from\s+['"]([^'"]+)['"];?\s*/g,
                // import * as Module from 'module';
                /import\s+\*\s+as\s+(\w+)\s+from\s+['"]([^'"]+)['"];?\s*/g,
                // import Module from 'module';
                /import\s+(\w+)\s+from\s+['"]([^'"]+)['"];?\s*/g
            ];

            patterns.forEach((pattern, index) => {
                let match;
                // 重置正则表达式的 lastIndex
                pattern.lastIndex = 0;

                while ((match = pattern.exec(code)) !== null) {
                    if (index === 0) {
                        // import React, { useState } from 'react';
                        const [, defaultImport, namedImports, modulePath] = match;
                        if (presetLibraries[modulePath]) {
                            // 默认导入
                            if (presetLibraries[modulePath].default) {
                                imports[defaultImport] = presetLibraries[modulePath].default;
                            }
                            // 命名导入
                            const names = namedImports.split(',').map(name => name.trim());
                            names.forEach(name => {
                                if (presetLibraries[modulePath][name]) {
                                    imports[name] = presetLibraries[modulePath][name];
                                }
                            });
                        }
                    } else if (index === 1) {
                        // import { Component1, Component2 } from 'module';
                        const [, namedImports, modulePath] = match;
                        if (presetLibraries[modulePath]) {
                            const names = namedImports.split(',').map(name => name.trim());
                            names.forEach(name => {
                                if (presetLibraries[modulePath][name]) {
                                    imports[name] = presetLibraries[modulePath][name];
                                }
                            });
                        }
                    } else if (index === 2) {
                        // import * as Module from 'module';
                        const [, namespaceImport, modulePath] = match;
                        if (presetLibraries[modulePath]) {
                            imports[namespaceImport] = presetLibraries[modulePath];
                        }
                    } else if (index === 3) {
                        // import Module from 'module';
                        const [, defaultImport, modulePath] = match;
                        if (presetLibraries[modulePath]) {
                            imports[defaultImport] = presetLibraries[modulePath].default || presetLibraries[modulePath];
                        }
                    }
                }
            });

            return imports;
        }

        // 移除所有 import 和 export 语句
        function removeImportsAndExports(code) {
            return code
                // 移除所有类型的 import 语句
                .replace(/import\s+(\w+)\s*,\s*{\s*[^}]+\s*}\s+from\s+['"][^'"]+['"];?\s*/g, '')
                .replace(/import\s*{\s*[^}]+\s*}\s+from\s+['"][^'"]+['"];?\s*/g, '')
                .replace(/import\s+\*\s+as\s+\w+\s+from\s+['"][^'"]+['"];?\s*/g, '')
                .replace(/import\s+\w+\s+from\s+['"][^'"]+['"];?\s*/g, '')
                // 移除 export 语句
                .replace(/export\s+default\s+\w+;?\s*$/gm, '')
                .replace(/export\s*{\s*[^}]+\s*};?\s*/g, '')
                // 清理多余的空行
                .replace(/\n\s*\n\s*\n/g, '\n\n');
        }

        // 主渲染函数
        function rendering(root_element, react_code) {
            try {
                console.log('原始代码:', react_code);

                // 1. 解析导入的库
                const importedLibraries = parseImports(react_code);
                console.log('解析的导入:', importedLibraries);

                // 2. 移除所有 import 和 export 语句
                const cleanedCode = removeImportsAndExports(react_code);
                console.log('清理后的代码:', cleanedCode);

                // 3. 使用 Babel 转换 JSX
                const transformedCode = Babel.transform(cleanedCode, {
                    presets: [['react', { runtime: 'classic' }]],
                    plugins: []
                }).code;
                console.log('转换后的代码:', transformedCode);

                // 4. 准备执行环境的参数 - 避免重复参数名
                const baseParams = {
                    'React': React,
                    'ReactDOM': ReactDOM
                };

                // 合并导入的库，避免重复
                const allParams = { ...baseParams, ...importedLibraries };

                // 去重参数名
                const paramNames = Object.keys(allParams);
                const paramValues = Object.values(allParams);

                console.log('参数名:', paramNames);
                console.log('参数值:', paramValues);

                // 5. 创建并执行函数
                const executeCode = new Function(
                    ...paramNames,
                    `
                    "use strict";
                    ${transformedCode}
                    return App;
                    `
                );

                const AppComponent = executeCode(...paramValues);
                console.log('获取的组件:', AppComponent);

                // 6. 渲染组件
                if (window.currentRoot) {
                    window.currentRoot.unmount();
                }

                window.currentRoot = ReactDOM.createRoot(root_element);
                window.currentRoot.render(React.createElement(AppComponent));

            } catch (error) {
                console.error('渲染失败:', error);
                root_element.innerHTML = `
                    <div style="color: red; padding: 20px; border: 1px solid red; border-radius: 4px;">
                        <h4>渲染错误:</h4>
                        <pre>${error.message}</pre>
                        <details>
                            <summary>错误详情</summary>
                            <pre>${error.stack}</pre>
                        </details>
                    </div>
                `;
            }
        }

        function renderCode() {
            const code = document.getElementById('codeInput').value;
            const preview = document.getElementById('preview');
            rendering(preview, code);
        }

        // 示例代码
        const examples = {
            card: `import React, { useState } from 'react';
import { Card, CardContent, CardHeader } from '@/components/ui/card';

function App() {
  const [count, setCount] = useState(0);

  return (
    <div>
      <h1>带卡片的计数器</h1>
      <Card>
        <CardHeader>
          计数器应用
        </CardHeader>
        <CardContent>
          <h2>当前计数: {count}</h2>
          <div style={{ marginTop: '10px' }}>
            <button onClick={() => setCount(count + 1)} style={{ marginRight: '10px' }}>
              增加
            </button>
            <button onClick={() => setCount(count - 1)} style={{ marginRight: '10px' }}>
              减少
            </button>
            <button onClick={() => setCount(0)}>
              重置
            </button>
          </div>
        </CardContent>
      </Card>
    </div>
  );
}`,
            antd: `import React, { useState } from 'react';
import { Button, Card } from 'antd';

function App() {
  const [count, setCount] = useState(0);

  return (
    <div style={{ padding: '20px' }}>
      <h1>Ant Design 示例</h1>
      <Card title="计数器卡片">
        <p>当前计数: <strong>{count}</strong></p>
        <Button type="primary" onClick={() => setCount(count + 1)}>
          增加
        </Button>
        <Button onClick={() => setCount(count - 1)}>
          减少
        </Button>
        <Button onClick={() => setCount(0)}>
          重置
        </Button>
      </Card>
    </div>
  );
}`
        };

        function loadExample(type) {
            if (examples[type]) {
                document.getElementById('codeInput').value = examples[type];
                renderCode();
            }
        }

        // 页面加载时自动渲染
        window.onload = function() {
            renderCode();
        };
    </script>
</body>
</html>