\u4f4e\u4ee3\u7801\u5e73\u53f0\u5df2\u6210\u4e3a\u73b0\u4ee3\u524d\u7aef\u5f00\u53d1\u7684\u70ed\u95e8\u65b9\u5411\uff0c\u5b83\u5141\u8bb8\u5f00\u53d1\u8005\u901a\u8fc7\u62d6\u62fd\u7ec4\u4ef6\u3001\u914d\u7f6e\u5c5e\u6027\u6765\u5feb\u901f\u751f\u6210\u9875\u9762\u3002\u7136\u800c\uff0c\u6784\u5efa\u4e00\u4e2a\u5065\u58ee\u7684\u4f4e\u4ee3\u7801\u5e73\u53f0\u5e76\u975e\u6613\u4e8b\uff0c\u5176\u6838\u5fc3\u5728\u4e8e\u67b6\u6784\u8bbe\u8ba1\u3002\u672c\u6587\u5c06\u5e26\u4f60\u4ece\u96f6\u5f00\u59cb\uff0c\u8bbe\u8ba1\u5e76\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5316\u7248\u7684\u53ef\u89c6\u5316\u642d\u5efa\u5f15\u64ce\uff0c\u91cd\u70b9\u5256\u6790\u5176\u67b6\u6784\u5206\u5c42\u3001\u5173\u952e\u6a21\u5757\u7684\u5b9e\u73b0\uff0c\u4ee5\u53ca\u4e00\u4e9b\u5b9e\u7528\u7684\u6700\u4f73\u5b9e\u8df5\u3002<\/p>\n
\u4e00\u4e2a\u5178\u578b\u7684\u524d\u7aef\u4f4e\u4ee3\u7801\u5e73\u53f0\u901a\u5e38\u5206\u4e3a\u4ee5\u4e0b\u51e0\u5c42\uff1a<\/p>\n
\u672c\u6587\u805a\u7126\u4e8e\u8bbe\u8ba1\u5f15\u64ce\u5c42\uff0c\u56e0\u4e3a\u5b83\u662f\u4f4e\u4ee3\u7801\u5e73\u53f0\u7684\u5fc3\u810f\u3002\u6211\u4eec\u5c06\u7528 React + TypeScript \u5b9e\u73b0\u4e00\u4e2a\u8ff7\u4f60\u7248\u8bbe\u8ba1\u5f15\u64ce\uff0c\u4f46\u6838\u5fc3\u601d\u60f3\u9002\u7528\u4e8e\u4efb\u4f55\u6846\u67b6\u3002<\/p>\n
\u5728\u52a8\u624b\u5199\u4ee3\u7801\u4e4b\u524d\uff0c\u6211\u4eec\u5148\u786e\u7acb\u51e0\u4e2a\u5173\u952e\u539f\u5219\uff1a<\/p>\n
\u7ec4\u4ef6\u6811\u662f\u4f4e\u4ee3\u7801\u5e73\u53f0\u7684\u6570\u636e\u6a21\u578b\uff0c\u901a\u5e38\u662f\u4e00\u68f5\u5d4c\u5957\u7684\u6811\u7ed3\u6784\u3002\u6211\u4eec\u5b9a\u4e49\u5982\u4e0b\u7c7b\u578b\uff1a<\/p>\n
\n\/\/ types.ts\nexport interface ComponentNode {\n id: string;\n type: string; \/\/ \u7ec4\u4ef6\u7c7b\u578b\uff0c\u5982 'button', 'div'\n props: Record<string, any>;\n children: ComponentNode[];\n}\n<\/code><\/pre>\n\u7ba1\u7406\u7ec4\u4ef6\u6811\u7684\u72b6\u6001\uff0c\u6211\u4eec\u4f7f\u7528 React \u7684 useReducer\uff0c\u4fbf\u4e8e\u8ffd\u8e2a\u53d8\u66f4\uff1a<\/p>\n
\n\/\/ store.tsx\nimport React, { createContext, useContext, useReducer } from 'react';\nimport { ComponentNode } from '.\/types';\n\ntype Action =\n | { type: 'ADD_NODE'; parentId: string | null; node: ComponentNode }\n | { type: 'REMOVE_NODE'; id: string }\n | { type: 'UPDATE_PROPS'; id: string; props: Record<string, any> };\n\nconst initialState: { tree: ComponentNode[] } = { tree: [] };\n\nfunction reducer(state: typeof initialState, action: Action) {\n switch (action.type) {\n case 'ADD_NODE': {\n const newNode = { ...action.node };\n if (action.parentId === null) {\n return { tree: [...state.tree, newNode] };\n }\n \/\/ \u9012\u5f52\u6dfb\u52a0\u5b50\u8282\u70b9\n const updateTree = (nodes: ComponentNode[]): ComponentNode[] => {\n return nodes.map(node => {\n if (node.id === action.parentId) {\n return { ...node, children: [...node.children, newNode] };\n }\n if (node.children.length) {\n return { ...node, children: updateTree(node.children) };\n }\n return node;\n });\n };\n return { tree: updateTree(state.tree) };\n }\n \/\/ \u5176\u4ed6 action \u7c7b\u4f3c\uff0c\u7701\u7565\n default:\n return state;\n }\n}\n\nconst StoreContext = createContext<{ state: typeof initialState; dispatch: React.Dispatch<Action> } | null>(null);\n\nexport const StoreProvider = ({ children }: { children: React.ReactNode }) => {\n const [state, dispatch] = useReducer(reducer, initialState);\n return <StoreContext.Provider value={{ state, dispatch }}>{children}<\/StoreContext.Provider>;\n};\n\nexport const useStore = () => {\n const context = useContext(StoreContext);\n if (!context) throw new Error('useStore must be used within StoreProvider');\n return context;\n};\n<\/code><\/pre>\n3.2 \u62d6\u62fd\u4ea4\u4e92\u5b9e\u73b0<\/h3>\n
\u62d6\u62fd\u662f\u4f4e\u4ee3\u7801\u5e73\u53f0\u6700\u6838\u5fc3\u7684\u4ea4\u4e92\u3002\u6211\u4eec\u4f7f\u7528 HTML5 \u62d6\u653e API \u5b9e\u73b0\u4e00\u4e2a\u53ef\u590d\u7528\u7684\u62d6\u62fd\u7cfb\u7edf\u3002\u9996\u5148\uff0c\u5b9a\u4e49\u53ef\u62d6\u62fd\u7ec4\u4ef6\u5305\u88c5\u5668\uff1a<\/p>\n
\n\/\/ Draggable.tsx\nimport React from 'react';\n\nexport const Draggable = ({ id, type, children, onDrop }: {\n id: string;\n type: string;\n children: React.ReactNode;\n onDrop: (e: React.DragEvent) => void;\n}) => {\n const handleDragStart = (e: React.DragEvent) => {\n e.dataTransfer.setData('text\/plain', JSON.stringify({ id, type }));\n e.dataTransfer.effectAllowed = 'move';\n };\n\n return (\n <div\n draggable\n onDragStart={handleDragStart}\n onDragOver={(e) => e.preventDefault()}\n onDrop={onDrop}\n style={{ padding: '8px', border: '1px dashed #ccc' }}\n >\n {children}\n <\/div>\n );\n};\n<\/code><\/pre>\n\u5728\u753b\u5e03\u533a\u57df\uff0c\u6211\u4eec\u76d1\u542c drop \u4e8b\u4ef6\u6765\u6dfb\u52a0\u7ec4\u4ef6\uff1a<\/p>\n
\n\/\/ Canvas.tsx\nimport React from 'react';\nimport { useStore } from '.\/store';\nimport { Draggable } from '.\/Draggable';\nimport { ComponentNode } from '.\/types';\n\nexport const Canvas = () => {\n const { state, dispatch } = useStore();\n\n const handleDrop = (e: React.DragEvent, parentId: string | null) => {\n e.preventDefault();\n const data = JSON.parse(e.dataTransfer.getData('text\/plain'));\n const newNode: ComponentNode = {\n id: `node_${Date.now()}`,\n type: data.type,\n props: {},\n children: [],\n };\n dispatch({ type: 'ADD_NODE', parentId, node: newNode });\n };\n\n const renderNode = (node: ComponentNode) => {\n return (\n <Draggable\n key={node.id}\n id={node.id}\n type={node.type}\n onDrop={(e) => handleDrop(e, node.id)}\n >\n <div>{node.type}<\/div>\n {node.children.map(child => renderNode(child))}\n <\/Draggable>\n );\n };\n\n return (\n <div\n style={{ flex: 1, padding: '20px', overflow: 'auto' }}\n onDragOver={(e) => e.preventDefault()}\n onDrop={(e) => handleDrop(e, null)}\n >\n {state.tree.map(node => renderNode(node))}\n <\/div>\n );\n};\n<\/code><\/pre>\n\u6ce8\u610f<\/strong>\uff1aHTML5 \u62d6\u653e API \u5728\u79fb\u52a8\u7aef\u652f\u6301\u4e0d\u4f73\uff0c\u751f\u4ea7\u73af\u5883\u5efa\u8bae\u4f7f\u7528 Pointer Events \u6216\u7b2c\u4e09\u65b9\u5e93\u5982 react-dnd\u3002\u4f46\u8fd9\u91cc\u4e3a\u4e86\u6559\u5b66\u7b80\u5355\uff0c\u6211\u4eec\u4f7f\u7528\u539f\u751f API\u3002<\/p>\n3.3 \u5c5e\u6027\u9762\u677f\u52a8\u6001\u751f\u6210<\/h3>\n
\u5c5e\u6027\u9762\u677f\u9700\u8981\u6839\u636e\u9009\u4e2d\u7ec4\u4ef6\u7684\u7c7b\u578b\u52a8\u6001\u6e32\u67d3\u8868\u5355\u3002\u6211\u4eec\u901a\u8fc7\u4e00\u4e2a\u7ec4\u4ef6\u6ce8\u518c\u8868\u6765\u6620\u5c04\u7ec4\u4ef6\u7c7b\u578b\u4e0e\u5c5e\u6027\u914d\u7f6e\uff1a<\/p>\n
\n\/\/ componentRegistry.ts\nexport interface ComponentConfig {\n type: string;\n displayName: string;\n propsSchema: Array<{ name: string; label: string; type: 'string' | 'number' | 'boolean' }>;\n}\n\nexport const componentRegistry: Record<string, ComponentConfig> = {\n button: {\n type: 'button',\n displayName: '\u6309\u94ae',\n propsSchema: [\n { name: 'text', label: '\u6587\u672c', type: 'string' },\n { name: 'size', label: '\u5c3a\u5bf8', type: 'string' },\n ],\n },\n div: {\n type: 'div',\n displayName: '\u5bb9\u5668',\n propsSchema: [],\n },\n};\n<\/code><\/pre>\n\u5c5e\u6027\u9762\u677f\u7ec4\u4ef6\u6839\u636e schema \u751f\u6210\u8868\u5355\uff1a<\/p>\n
\n\/\/ PropertyPanel.tsx\nimport React from 'react';\nimport { componentRegistry } from '.\/componentRegistry';\nimport { useStore } from '.\/store';\n\nexport const PropertyPanel = ({ selectedId }: { selectedId: string | null }) => {\n const { state, dispatch } = useStore();\n if (!selectedId) return <div>\u672a\u9009\u4e2d\u7ec4\u4ef6<\/div>;\n\n \/\/ \u67e5\u627e\u9009\u4e2d\u8282\u70b9\uff08\u7b80\u5316\uff0c\u5b9e\u9645\u9700\u904d\u5386\u6811\uff09\n const findNode = (nodes: ComponentNode[], id: string): ComponentNode | null => {\n for (const node of nodes) {\n if (node.id === id) return node;\n if (node.children.length) {\n const found = findNode(node.children, id);\n if (found) return found;\n }\n }\n return null;\n };\n const node = findNode(state.tree, selectedId);\n if (!node) return null;\n\n const config = componentRegistry[node.type];\n if (!config) return <div>\u672a\u77e5\u7ec4\u4ef6\u7c7b\u578b<\/div>;\n\n const handleChange = (name: string, value: any) => {\n dispatch({ type: 'UPDATE_PROPS', id: node.id, props: { ...node.props, [name]: value } });\n };\n\n return (\n <div style={{ width: '300px', padding: '16px' }}>\n <h3>{config.displayName} \u5c5e\u6027<\/h3>\n {config.propsSchema.map(field => (\n <div key={field.name}>\n <label>{field.label}<\/label>\n <input\n type={field.type === 'number' ? 'number' : 'text'}\n value={node.props[field.name] || ''}\n onChange={(e) => handleChange(field.name, e.target.value)}\n \/>\n <\/div>\n ))}\n <\/div>\n );\n};\n<\/code><\/pre>\n3.4 \u4ee3\u7801\u751f\u6210\u4e0e\u9884\u89c8<\/h3>\n
\u5c06\u7ec4\u4ef6\u6811\u8f6c\u6362\u4e3a React \u4ee3\u7801\uff0c\u6211\u4eec\u91c7\u7528\u9012\u5f52\u751f\u6210 JSX \u5b57\u7b26\u4e32\uff1a<\/p>\n
\n\/\/ codegen.ts\nimport { ComponentNode } from '.\/types';\n\nexport function generateCode(nodes: ComponentNode[]): string {\n return nodes.map(node => generateNode(node)).join('\\n');\n}\n\nfunction generateNode(node: ComponentNode): string {\n const propsStr = Object.entries(node.props)\n .map(([key, value]) => `${key}="${value}"`)\n .join(' ');\n const childrenStr = node.children.length ? `\\n${generateCode(node.children)}\\n` : '';\n return `<${node.type} ${propsStr}>${childrenStr}<\/${node.type}>`;\n}\n<\/code><\/pre>\n\u9884\u89c8\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 react-dom<\/code> \u7684 render<\/code> \u65b9\u6cd5\u52a8\u6001\u6e32\u67d3\u751f\u6210\u7684\u7ec4\u4ef6\u6811\u3002\u4e3a\u4e86\u7b80\u5316\uff0c\u6211\u4eec\u76f4\u63a5\u6e32\u67d3 JSON \u6811\uff1a<\/p>\n\n\/\/ Preview.tsx\nimport React from 'react';\nimport { useStore } from '.\/store';\nimport { componentRegistry } from '.\/componentRegistry';\n\nexport const Preview = () => {\n const { state } = useStore();\n\n const renderNode = (node: ComponentNode): React.ReactNode => {\n const config = componentRegistry[node.type];\n if (!config) return null;\n \/\/ \u6839\u636e\u7c7b\u578b\u8fd4\u56de\u5b9e\u9645\u7ec4\u4ef6\uff0c\u8fd9\u91cc\u7b80\u5316\uff0c\u5b9e\u9645\u5e94\u6620\u5c04\u5230\u771f\u5b9e\u7ec4\u4ef6\n const props = { ...node.props, key: node.id };\n if (node.type === 'button') {\n return <button {...props}>{node.props.text}<\/button>;\n }\n if (node.type === 'div') {\n return <div {...props}>{node.children.map(child => renderNode(child))}<\/div>;\n }\n return null;\n };\n\n return (\n <div style={{ flex: 1, padding: '20px' }}>\n {state.tree.map(node => renderNode(node))}\n <\/div>\n );\n};\n<\/code><\/pre>\n4. \u96c6\u6210\u4e0e\u6d4b\u8bd5<\/h2>\n
\u6700\u540e\uff0c\u6211\u4eec\u5c06\u8fd9\u4e9b\u6a21\u5757\u7ec4\u5408\u6210\u4e00\u4e2a\u5b8c\u6574\u7684\u7f16\u8f91\u5668\u9875\u9762\uff1a<\/p>\n
\n\/\/ App.tsx\nimport React, { useState } from 'react';\nimport { StoreProvider } from '.\/store';\nimport { Canvas } from '.\/Canvas';\nimport { PropertyPanel } from '.\/PropertyPanel';\nimport { Preview } from '.\/Preview';\n\nexport default function App() {\n const [selectedId, setSelectedId] = useState<string | null>(null);\n\n return (\n <StoreProvider>\n <div style={{ display: 'flex', height: '100vh' }}>\n <div style={{ width: '200px', padding: '16px' }}>\n {\/* \u7ec4\u4ef6\u9762\u677f\uff1a\u62d6\u62fd\u6dfb\u52a0 *\/}\n <div draggable onDragStart={(e) => e.dataTransfer.setData('text\/plain', JSON.stringify({ type: 'button' }))}>\n \u6309\u94ae\n <\/div>\n <div draggable onDragStart={(e) => e.dataTransfer.setData('text\/plain', JSON.stringify({ type: 'div' }))}>\n \u5bb9\u5668\n <\/div>\n <\/div>\n <Canvas \/>\n <PropertyPanel selectedId={selectedId} \/>\n <Preview \/>\n <\/div>\n <\/StoreProvider>\n );\n}\n<\/code><\/pre>\n5. \u8e29\u5751\u4e0e\u6700\u4f73\u5b9e\u8df5<\/h2>\n\n- \u72b6\u6001\u7ba1\u7406<\/strong>\uff1a\u4e00\u5b9a\u8981\u4f7f\u7528\u4e0d\u53ef\u53d8\u6570\u636e\uff0c\u65b9\u4fbf\u64a4\u9500\/\u91cd\u505a\u3002<\/li>\n
- \u6027\u80fd\u4f18\u5316<\/strong>\uff1a\u5927\u7ec4\u4ef6\u6811\u65f6\uff0c\u62d6\u62fd\u4f1a\u9891\u7e41\u89e6\u53d1\u6e32\u67d3\uff0c\u53ef\u4f7f\u7528
React.memo<\/code> \u548c useCallback<\/code> \u4f18\u5316\u3002<\/li>\n- \u6269\u5c55\u6027<\/strong>\uff1a\u901a\u8fc7\u6ce8\u518c\u8868\u6a21\u5f0f\u6dfb\u52a0\u65b0\u7ec4\u4ef6\uff0c\u907f\u514d\u4fee\u6539\u6838\u5fc3\u5f15\u64ce\u3002<\/li>\n
- \u4ee3\u7801\u751f\u6210<\/strong>\uff1a\u751f\u6210\u4ee3\u7801\u540e\uff0c\u53ef\u4f7f\u7528 Babel \u89e3\u6790\u4e3a AST \u518d\u751f\u6210\u53ef\u6267\u884c\u4ee3\u7801\uff0c\u4f46\u76f4\u63a5\u751f\u6210\u5b57\u7b26\u4e32\u7b80\u5355\u4e14\u8db3\u591f\u3002<\/li>\n<\/ul>\n
6. \u603b\u7ed3\u4e0e\u5c55\u671b<\/h2>\n
\u672c\u6587\u5b9e\u73b0\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u4f4e\u4ee3\u7801\u642d\u5efa\u5f15\u64ce\uff0c\u6db5\u76d6\u4e86\u6838\u5fc3\u67b6\u6784\u3002\u5b9e\u9645\u751f\u4ea7\u7ea7\u5e73\u53f0\u8fd8\u9700\u8981\u8003\u8651\uff1a\u64a4\u9500\/\u91cd\u505a\u3001\u5feb\u6377\u952e\u3001\u591a\u9009\u3001\u5d4c\u5957\u7ea6\u675f\u3001\u6570\u636e\u7ed1\u5b9a\u3001\u8fdc\u7a0b\u7ec4\u4ef6\u52a0\u8f7d\u7b49\u3002\u5efa\u8bae\u8fdb\u4e00\u6b65\u7814\u7a76\u5f00\u6e90\u9879\u76ee\u5982 react-page<\/code>\u3001puck<\/code> \u7b49\uff0c\u6df1\u5165\u7406\u89e3\u5176\u67b6\u6784\u3002<\/p>\n\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u4e3a\u4f60\u6784\u5efa\u81ea\u5df1\u7684\u4f4e\u4ee3\u7801\u5e73\u53f0\u63d0\u4f9b\u542f\u53d1\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u672c\u6587\u6df1\u5165\u63a2\u8ba8\u524d\u7aef\u4f4e\u4ee3\u7801\u5e73\u53f0\u7684\u6838\u5fc3\u67b6\u6784\uff0c\u4ece\u8bbe\u8ba1\u539f\u5219\u5230\u5177\u4f53\u5b9e\u73b0\uff0c\u624b\u628a\u624b\u6559\u4f60\u642d\u5efa\u4e00\u4e2a\u53ef\u6269\u5c55\u7684\u53ef\u89c6\u5316\u642d\u5efa\u5f15\u64ce\u3002\u6db5\u76d6\u7ec4\u4ef6\u6811\u7ba1\u7406\u3001\u62d6\u62fd\u4ea4\u4e92\u3001\u5c5e\u6027\u9762\u677f\u751f\u6210\u3001\u4ee3\u7801\u751f\u6210\u4e0e\u9884\u89c8\u7b49\u5173\u952e\u6a21\u5757\uff0c\u5e76\u63d0\u4f9b\u5b8c\u6574\u53ef\u8fd0\u884c\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,4],"tags":[11,170,171,172,173],"class_list":["post-224","post","type-post","status-publish","format-standard","hentry","category-3","category-4","tag-react","tag-170","tag-171","tag-172","tag-173"],"_links":{"self":[{"href":"https:\/\/yykcj.com\/index.php?rest_route=\/wp\/v2\/posts\/224","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yykcj.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yykcj.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yykcj.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yykcj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=224"}],"version-history":[{"count":0,"href":"https:\/\/yykcj.com\/index.php?rest_route=\/wp\/v2\/posts\/224\/revisions"}],"wp:attachment":[{"href":"https:\/\/yykcj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=224"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yykcj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=224"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yykcj.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=224"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}