AI向け説明 AI Description

`F-005` はテキスト入力時にフィルタリングされたサジェストリストを表示する検索UIです。`max-height` と `opacity` のCSSトランジションで滑らかに表示され、JavaScriptで入力値に基づくフィルタリングとマッチ部分のハイライトを行います。

`F-005` renders a filtered suggestion list as the user types into a search input. CSS `max-height` and `opacity` transitions handle smooth reveal, while JavaScript filters suggestions and highlights matching text.

調整可能パラメータ Adjustable Parameters

• --suggestion-max-height — サジェストリストの最大高さMax height of suggestion list
• --highlight-color — マッチテキストのハイライト色Matched text highlight color

実装 Implementation

HTML + CSS + JS

<div class="search-wrapper">
  <span class="search-icon">🔍</span>
  <input type="text" class="search-input" id="search" autocomplete="off" />
  <div class="suggestions" id="suggestions"></div>
</div>

<style>
:root {
  --highlight-color: #5c6ac4;
  --suggestion-max-height: 300px;
}
</style>

<script>
// (Filtering logic omitted for brevity)
</script>

React (JSX + CSS)

// react/F-005.jsx
import { useState } from 'react';
import './F-005.css';

export default function SearchWithSuggestions({ items = [], placeholder = '検索...' }) {
  const [query, setQuery] = useState('');
  const matches = query ? items.filter(i => i.toLowerCase().includes(query.toLowerCase())) : [];

  return (
    <div className="search-wrapper">
      <span className="search-icon">🔍</span>
      <input className="search-input" value={query} onChange={e => setQuery(e.target.value)} placeholder={placeholder} />
      <div className={`suggestions ${matches.length ? 'open' : ''}`}>
        {matches.map(m => <div key={m} className="suggestion-item" onClick={() => setQuery(m)}>{m}</div>)}
      </div>
    </div>
  );
}

/* react/F-005.css */
/* F-005: Search with Suggestions */
.search-wrapper {
  position: relative;
}

.search-input {
  width: 100%;
  padding: 14px 16px 14px 44px;
  font-size: 16px;
  border: 2px solid #e0e4f0;
  border-radius: 12px;
  outline: none;
  transition: border-color 0.3s ease;
  font-family: inherit;
}

.search-input:focus {
  border-color: #5c6ac4;
  box-shadow: 0 0 0 3px rgba(92, 106, 196, 0.15);
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  color: #999;
  pointer-events: none;
}

.suggestions {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  border: 1px solid #e0e4f0;
  border-radius: 12px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, opacity 0.3s ease;
  opacity: 0;
  z-index: 10;
  background: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.suggestions.open {
  max-height: 300px;
  opacity: 1;
}

.suggestion-item {
  padding: 12px 16px;
  cursor: pointer;
  transition: background 0.2s ease;
  display: flex;
  align-items: center;
  gap: 10px;
}

.suggestion-item:hover {
  background: #f5f7ff;
}

.suggestion-item mark {
  background: rgba(92, 106, 196, 0.2);
  color: #5c6ac4;
  font-weight: 600;
  border-radius: 2px;
  padding: 0 2px;
}