完整的受控参考项查找器
Provider、标签、输入框、展开控件、分组弹出层项目和本地阅读列表操作。
jsx
import React,{useState} from 'react';
import * as Ariakit from '@ariakit/react';
const resources=[{name:'Type scale',group:'Foundations',code:'Aa',description:'A compact editorial hierarchy for headings, supporting text and labels.',notes:['Display · 36px / 1.1','Section · 24px / 1.25','Body · 16px / 1.6'],color:'#f0dbc3'},{name:'Color roles',group:'Foundations',code:'◐',description:'Separate surface, text, boundary and action roles before naming brand colors.',notes:['Canvas and raised surface','Primary and muted text','Action and on-action pair'],color:'#d6e5d8'},{name:'Spacing rhythm',group:'Foundations',code:'▥',description:'Use a small set of intervals to show relationships between content groups.',notes:['8px within a compact group','16px between related controls','32px between sections'],color:'#d6dfee'},{name:'Form field',group:'Components',code:'⌑',description:'Keep the label, hint, input and error message in one understandable group.',notes:['Persistent visible label','Hint before an error exists','Error connected to the input'],color:'#e9d8de'},{name:'Navigation menu',group:'Components',code:'☷',description:'A small set of destinations with a visible current location and keyboard access.',notes:['Destination labels describe content','Current item has a text/state cue','Collapsed layout keeps names'],color:'#e7e0c5'},{name:'Experimental grid',group:'Components',code:'▦',description:'Unavailable in this sample collection.',notes:[],color:'#e3e3e3',disabled:true}];
export default function App(){const[query,setQuery]=useState(''),[chosen,setChosen]=useState('Type scale'),[saved,setSaved]=useState([]);const selected=resources.find(x=>x.name===chosen)||resources[0],matches=resources.filter(x=>x.name.toLowerCase().includes(query.toLowerCase()));return <main className="resource-finder"><header><p className="eyebrow">ARIAKIT · ACCESSIBLE PRIMITIVES</p><h1>A reference, within reach.</h1><p>Search a small collection with the keyboard, inspect the result and keep a local reading list.</p></header><div className="finder-grid"><section className="search-area"><Ariakit.ComboboxProvider inputValue={query} setInputValue={setQuery} selectedValue={chosen} setSelectedValue={setChosen}><Ariakit.ComboboxLabel className="label">Find a reference</Ariakit.ComboboxLabel><div className="input-row"><Ariakit.Combobox className="combobox" placeholder="Try type, color or form" /><Ariakit.ComboboxDisclosure className="disclosure" aria-label="Show reference suggestions">⌄</Ariakit.ComboboxDisclosure></div><Ariakit.ComboboxPopover gutter={8} sameWidth className="popover">{['Foundations','Components'].map(group=>{const items=matches.filter(x=>x.group===group);return items.length?<Ariakit.ComboboxGroup key={group}><Ariakit.ComboboxGroupLabel className="group-label">{group}</Ariakit.ComboboxGroupLabel>{items.map(x=><Ariakit.ComboboxItem key={x.name} value={x.name} disabled={x.disabled} className="combo-item"><span>{x.name}</span><small>{x.disabled?'Unavailable':x.group==='Foundations'?'Guide':'Pattern'}</small></Ariakit.ComboboxItem>)}</Ariakit.ComboboxGroup>:null})}{!matches.length&&<p className="empty" role="status">No matching reference. Try “color” or clear the search.</p>}</Ariakit.ComboboxPopover></Ariakit.ComboboxProvider><p className="hint">Type to filter. Use ↓ and ↑ to browse, Enter to choose, Escape to close.</p><div className="collection-note"><span>06</span><div><strong>Sample references</strong><p>Five available, one deliberately disabled to show an unavailable item.</p></div></div><section className="reading-list"><h2>Your reading list <small>{saved.length}</small></h2>{saved.length?<ul>{saved.map(name=><li key={name}><span>{name}</span><Ariakit.Button className="remove" onClick={()=>setSaved(saved.filter(x=>x!==name))} aria-label={`Remove ${name}`}>Remove</Ariakit.Button></li>)}</ul>:<p className="muted">Choose a reference, then add it here.</p>}<p className="local-note">This list stays in memory and clears on reload.</p></section></section><section className="reference-card" aria-label="Selected reference"><div className="reference-art" style={{background:selected.color}} aria-hidden="true"><span>{selected.code}</span><i></i></div><div className="reference-body"><p className="eyebrow">{selected.group} · SAMPLE CONTENT</p><h2>{selected.name}</h2><p>{selected.description}</p><ul className="note-list">{selected.notes.map(note=><li key={note}>{note}</li>)}</ul><Ariakit.Button className="primary" disabled={saved.includes(selected.name)} onClick={()=>setSaved([...saved,selected.name])}>{saved.includes(selected.name)?'Added to reading list':'Add to reading list'}</Ariakit.Button><p className="scope-note">These sample reference values are original content, not Ariakit design tokens.</p></div></section></div><p className="selection-status" role="status">Selected reference: {selected.name}</p></main>}
- inputValue 是搜索字符串；selectedValue 是已确认的参考项。
- 符合查询条件的禁用条目仍会显示。
- 原始示例中的排版和间距值并非 Ariakit 的默认值。
