wordcloud/cloud.html at main · dzpunna/wordcloud · GitHub

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<!DOCTYPE html>
<html lang="zh-TW">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>即時文字雲</title>
  <style>
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      min-height: 100vh;
      background: #0f172a;
      font-family: 'Noto Sans TC', sans-serif;
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 16px 24px;
      background: #1e293b;
      border-bottom: 1px solid #334155;
    }
    header h1 {
      color: #f1f5f9;
      font-size: 1.2rem;
    }
    #wordCount {
      color: #94a3b8;
      font-size: 0.9rem;
    }
    #clearBtn {
      padding: 6px 14px;
      background: #ef4444;
      color: white;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      font-size: 0.85rem;
    }
    #clearBtn:hover { background: #dc2626; }
    #cloud {
      flex: 1;
      position: relative;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      gap: 12px 20px;
      padding: 40px;
      align-content: center;
    }
    .word-item {
      display: inline-block;
      font-weight: bold;
      border-radius: 8px;
      padding: 4px 8px;
      animation: pop 0.4s ease;
      transition: transform 0.3s, font-size 0.5s;
      cursor: default;
      line-height: 1.2;
    }
    @keyframes pop {
      0%   { transform: scale(0.3); opacity: 0; }
      70%  { transform: scale(1.15); }
      100% { transform: scale(1);   opacity: 1; }
    }
    #empty {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      color: #475569;
      font-size: 1.2rem;
      text-align: center;
      pointer-events: none;
    }
  </style>
</head>
<body>
  <header>
    <h1>☁️ 即時文字雲</h1>
    <span id="wordCount">載入中…</span>
    <button id="clearBtn" onclick="clearAll()">清除全部</button>
  </header>
  <div id="cloud">
    <div id="empty">等待輸入…</div>
  </div>

  <script type="module">
    import { initializeApp } from 'https://www.gstatic.com/firebasejs/10.12.0/firebase-app.js';
    import { getFirestore, collection, onSnapshot, getDocs, deleteDoc, doc }
      from 'https://www.gstatic.com/firebasejs/10.12.0/firebase-firestore.js';

    const firebaseConfig = {
      apiKey: "AIzaSyDOyazYCHo0oE-1d-1-5Ii1UMCodb7Rfr8",
      authDomain: "diy-work-af63e.firebaseapp.com",
      projectId: "diy-work-af63e",
      storageBucket: "diy-work-af63e.firebasestorage.app",
      messagingSenderId: "300082462154",
      appId: "1:300082462154:web:a39a1084e304622d1ee333"
    };

    const COLORS = [
      '#818cf8','#34d399','#fb923c','#f472b6',
      '#38bdf8','#a3e635','#fbbf24','#e879f9',
      '#4ade80','#60a5fa','#f87171','#2dd4bf'
    ];

    const app = initializeApp(firebaseConfig);
    const db  = getFirestore(app);
    const cloudEl    = document.getElementById('cloud');
    const emptyEl    = document.getElementById('empty');
    const countEl    = document.getElementById('wordCount');

    // 依顏色索引固定詞語顏色（同一個詞每次顏色一樣）
    function colorFor(word) {
      let h = 0;
      for (let i = 0; i < word.length; i++) h = (h * 31 + word.charCodeAt(i)) & 0xffff;
      return COLORS[h % COLORS.length];
    }

    // 依次數決定字體大小（1次=1rem，最大6rem）
    function sizeFor(count, max) {
      const ratio = max > 1 ? count / max : 1;
      return (1 + ratio * 5).toFixed(2);
    }

    onSnapshot(collection(db, 'wordcloud_words'), snapshot => {
      // 統計詞頻
      const freq = {};
      snapshot.forEach(d => {
        const w = (d.data().word || '').trim();
        if (w) freq[w] = (freq[w] || 0) + 1;
      });

      const total = snapshot.size;
      const words = Object.keys(freq);
      const max   = words.length ? Math.max(...words.map(w => freq[w])) : 1;

      // 更新計數
      countEl.textContent = `共 ${total} 筆 / ${words.length} 種詞`;
      emptyEl.style.display = words.length ? 'none' : 'block';

      // 清空並重繪（保留 #empty）
      Array.from(cloudEl.querySelectorAll('.word-item')).forEach(el => el.remove());

      // 依頻率排序，高頻在中間（先放高頻）
      words.sort((a, b) => freq[b] - freq[a]).forEach(word => {
        const el = document.createElement('span');
        el.className = 'word-item';
        el.textContent = `${word}`;
        if (freq[word] > 1) el.textContent += ` ×${freq[word]}`;
        el.style.fontSize  = `${sizeFor(freq[word], max)}rem`;
        el.style.color     = colorFor(word);
        cloudEl.appendChild(el);
      });
    });

    window.clearAll = async function () {
      if (!confirm('確定要清除所有詞語嗎？')) return;
      const snap = await getDocs(collection(db, 'wordcloud_words'));
      const deletes = snap.docs.map(d => deleteDoc(doc(db, 'wordcloud_words', d.id)));
      await Promise.all(deletes);
    };
  </script>
</body>
</html>