feat(bidding): add initial auction control and display pages
This commit introduces a lightweight, browser-based auction system. It consists of two main components that communicate in real-time using the `BroadcastChannel` API, enabling a serverless front-end experience: - `display.html`: The public-facing screen for attendees. It shows the current item, price with smooth animation, and deal announcements. It automatically generates a unique session ID. - `control.html`: The auctioneer's control panel. It uses the session ID from the display page to connect. It allows for managing the auction flow, including loading items from a CSV, starting bids, updating prices, and finalizing sales.
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xiaomai
202
bidding/control.html
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bidding/control.html
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<!DOCTYPE html>
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<html lang="zh">
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<head>
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<meta charset="UTF-8">
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<title>Auction Control</title>
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<style>
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body {
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font-family: sans-serif;
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margin: 20px;
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background: #f5f5f5;
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}
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h1 { margin-bottom: 10px; }
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.section {
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background: #fff;
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padding: 15px;
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margin-bottom: 15px;
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border-radius: 8px;
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box-shadow: 0 2px 5px rgba(0,0,0,0.1);
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}
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input, select, button, textarea {
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margin: 5px 0;
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padding: 6px;
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border-radius: 4px;
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border: 1px solid #ccc;
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}
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button {
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cursor: pointer;
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background: #007bff;
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color: #fff;
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border: none;
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}
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button:hover {
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background: #0056b3;
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}
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table {
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width: 100%;
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border-collapse: collapse;
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margin-top: 10px;
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}
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th, td {
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border: 1px solid #ccc;
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padding: 6px;
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text-align: center;
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}
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th {
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background: #eee;
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}
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.history {
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max-height: 200px;
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overflow-y: auto;
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}
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</style>
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</head>
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<body>
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<h1>🎛 拍卖控制台</h1>
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<div>当前频道 ID: <b id="displayId"></b></div>
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<!-- 上传 CSV -->
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<div class="section">
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<h2>上传标品列表 (Items.csv)</h2>
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<input type="file" id="csvUpload" accept=".csv">
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<select id="itemSelect"></select>
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</div>
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<!-- 自定义输入 -->
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<div class="section">
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<h2>标品信息</h2>
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<label>名称: <input type="text" id="itemName"></label><br>
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<label>底价: <input type="number" id="itemBasePrice" value="0"></label><br>
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<label>备注: <input type="text" id="itemRemark"></label><br>
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<label>图片/影片链接: <input type="text" id="itemMedia"></label><br>
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<button id="startAuction">开始竞拍</button>
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</div>
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<!-- 出价 -->
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<div class="section">
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<h2>竞价控制</h2>
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<label>当前价格: <input type="number" id="currentPrice" value="0"></label><br>
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<button id="updatePrice">更新价格</button>
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<button id="dealItem">成交</button><br>
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<label>得标者: <input type="text" id="winnerName" placeholder="留空则显示 兴 旺 发"></label>
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</div>
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<!-- 成交历史 -->
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<div class="section">
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<h2>成交历史</h2>
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<div>总金额: <span id="totalAmount">0</span> 元</div>
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<div class="history">
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<table id="historyTable">
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<thead>
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<tr>
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<th>标品名称</th>
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<th>成交价</th>
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<th>得标者</th>
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</tr>
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</thead>
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<tbody></tbody>
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</table>
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</div>
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</div>
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<script>
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// 获取 displayId
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const urlParams = new URLSearchParams(location.search);
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const displayId = urlParams.get("display");
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if (!displayId) {
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alert("缺少 display 参数！请从 display.html 获取正确链接");
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}
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document.getElementById("displayId").textContent = displayId;
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const channel = new BroadcastChannel("auction-" + displayId);
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const itemSelect = document.getElementById("itemSelect");
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const itemName = document.getElementById("itemName");
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const itemBasePrice = document.getElementById("itemBasePrice");
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const itemRemark = document.getElementById("itemRemark");
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const itemMedia = document.getElementById("itemMedia");
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const currentPrice = document.getElementById("currentPrice");
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const winnerName = document.getElementById("winnerName");
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const totalAmountEl = document.getElementById("totalAmount");
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const historyTable = document.getElementById("historyTable").querySelector("tbody");
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let totalAmount = 0;
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let csvItems = [];
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// 解析 CSV
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document.getElementById("csvUpload").addEventListener("change", (e) => {
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const file = e.target.files[0];
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if (!file) return;
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const reader = new FileReader();
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reader.onload = (ev) => {
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const lines = ev.target.result.split(/\r?\n/).filter(l => l.trim());
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csvItems = lines.map(l => {
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const [name, basePrice, remark, media] = l.split(",");
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return { name, basePrice: Number(basePrice), remark, media };
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});
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refreshItemSelect();
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};
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reader.readAsText(file);
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});
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function refreshItemSelect() {
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itemSelect.innerHTML = "";
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csvItems.forEach((it, idx) => {
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const opt = document.createElement("option");
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opt.value = idx;
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opt.textContent = it.name;
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itemSelect.appendChild(opt);
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});
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}
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itemSelect.addEventListener("change", () => {
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const idx = itemSelect.value;
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if (csvItems[idx]) {
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const it = csvItems[idx];
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itemName.value = it.name;
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itemBasePrice.value = it.basePrice;
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itemRemark.value = it.remark;
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itemMedia.value = it.media;
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}
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});
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// 开始竞拍
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document.getElementById("startAuction").addEventListener("click", () => {
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const msg = {
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type: "showItem",
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name: itemName.value,
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basePrice: Number(itemBasePrice.value),
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remark: itemRemark.value,
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media: itemMedia.value
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};
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channel.postMessage(msg);
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currentPrice.value = itemBasePrice.value;
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});
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// 更新价格
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document.getElementById("updatePrice").addEventListener("click", () => {
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const msg = {
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type: "updatePrice",
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price: Number(currentPrice.value)
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};
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channel.postMessage(msg);
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});
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// 成交
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document.getElementById("dealItem").addEventListener("click", () => {
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const price = Number(currentPrice.value);
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const winner = winnerName.value || "";
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const msg = { type: "deal", price, winner };
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channel.postMessage(msg);
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// 保存历史
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const tr = document.createElement("tr");
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tr.innerHTML = `<td>${itemName.value}</td><td>${price}</td><td>${winner || "兴 旺 发"}</td>`;
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historyTable.appendChild(tr);
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totalAmount += price;
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totalAmountEl.textContent = totalAmount;
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});
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</script>
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</body>
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</html>
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bidding/display.html
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bidding/display.html
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<!DOCTYPE html>
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<html lang="zh">
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<head>
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<meta charset="UTF-8" />
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<title>Auction Display</title>
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<style>
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body {
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margin: 0;
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font-family: sans-serif;
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background: #111;
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color: #fff;
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display: flex;
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justify-content: center;
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align-items: center;
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height: 100vh;
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overflow: hidden;
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}
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.hidden {
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display: none;
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}
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.center {
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text-align: center;
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}
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.splash {
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font-size: 2rem;
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}
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.item img,
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.item video {
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max-width: 60vw;
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max-height: 40vh;
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margin-bottom: 1rem;
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border-radius: 12px;
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box-shadow: 0 0 20px rgba(0, 0, 0, 0.6);
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}
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.price {
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font-size: 3rem;
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color: #ffd700;
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margin: 1rem 0;
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transition: color 0.3s;
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}
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.deal {
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font-size: 2.5rem;
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color: #00ff88;
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}
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.footer {
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position: absolute;
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bottom: 10px;
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width: 100%;
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text-align: center;
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font-size: 1.2rem;
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color: #aaa;
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}
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</style>
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</head>
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<body>
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<!-- 初次加载提示 -->
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<div id="guide" class="center">
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<p>请将此窗口拖曳到大屏幕并按下 <b>F11</b> 进行展示</p>
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<p>控制端链接: <span id="controlLink"></span></p>
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</div>
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<!-- Splash Screen -->
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<div id="splash" class="center hidden">
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<div class="splash">🚀 Studio Name</div>
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<div><img src="logo.png" alt="Logo" style="max-width: 200px" /></div>
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</div>
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<!-- 标品展示 -->
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<div id="itemView" class="center hidden">
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<div class="itemMedia"></div>
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<div class="name"></div>
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<div class="remark"></div>
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<div class="price">￥0</div>
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</div>
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<!-- 成交界面 -->
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<div id="dealView" class="center hidden">
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<div class="deal">🎉 成交！</div>
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<div class="finalPrice"></div>
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<div class="winner"></div>
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</div>
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<!-- 总金额 -->
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<div class="footer">总金额: <span id="totalAmount">0</span> 元</div>
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<script>
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// 获取或生成频道 ID
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function getOrCreateDisplayId() {
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const urlParams = new URLSearchParams(location.search);
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let id = urlParams.get("display");
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if (!id) {
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id =
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Math.random().toString(36).slice(2, 12) + Date.now().toString(36);
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location.href = location.pathname + "?display=" + id;
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}
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return id;
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}
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const displayId = getOrCreateDisplayId();
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const channel = new BroadcastChannel("auction-" + displayId);
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// DOM 元素
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const guide = document.getElementById("guide");
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const controlLink = document.getElementById("controlLink");
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const splash = document.getElementById("splash");
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const itemView = document.getElementById("itemView");
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const dealView = document.getElementById("dealView");
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const totalAmountEl = document.getElementById("totalAmount");
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const itemMedia = itemView.querySelector(".itemMedia");
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const itemName = itemView.querySelector(".name");
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const itemRemark = itemView.querySelector(".remark");
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const itemPrice = itemView.querySelector(".price");
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const dealPrice = dealView.querySelector(".finalPrice");
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const dealWinner = dealView.querySelector(".winner");
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let currentPrice = 0;
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let targetPrice = 0;
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let totalAmount = 0;
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// 设置控制端链接
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controlLink.innerText =
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location.origin + "/control.html?display=" + displayId;
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// 展示 Splash
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setTimeout(() => {
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guide.classList.add("hidden");
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splash.classList.remove("hidden");
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setTimeout(() => {
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splash.classList.add("hidden");
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}, 2000);
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}, 3000);
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// 动态价格更新 (Lerp)
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function animatePrice() {
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if (Math.abs(targetPrice - currentPrice) > 1) {
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currentPrice += (targetPrice - currentPrice) * 0.1;
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itemPrice.textContent = "￥" + Math.round(currentPrice);
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requestAnimationFrame(animatePrice);
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} else {
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currentPrice = targetPrice;
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itemPrice.textContent = "￥" + currentPrice;
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}
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}
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// 监听消息
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channel.onmessage = (ev) => {
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const msg = ev.data;
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if (msg.type === "showItem") {
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splash.classList.add("hidden");
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dealView.classList.add("hidden");
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itemView.classList.remove("hidden");
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// 更新标品信息
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itemName.textContent = msg.name;
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itemRemark.textContent = msg.remark || "";
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if (msg.media) {
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if (msg.media.endsWith(".mp4")) {
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itemMedia.innerHTML = `<video src="${msg.media}" autoplay loop></video>`;
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} else {
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itemMedia.innerHTML = `<img src="${msg.media}" alt="">`;
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}
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} else {
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itemMedia.innerHTML = "";
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}
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currentPrice = 0;
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targetPrice = msg.basePrice || 0;
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animatePrice();
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}
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if (msg.type === "updatePrice") {
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targetPrice = msg.price;
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animatePrice();
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}
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if (msg.type === "deal") {
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itemView.classList.add("hidden");
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dealView.classList.remove("hidden");
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dealPrice.textContent = "成交价: ￥" + msg.price;
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dealWinner.textContent = "得标者: " + (msg.winner || "兴 旺 发");
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totalAmount += msg.price;
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totalAmountEl.textContent = totalAmount;
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}
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};
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</script>
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</body>
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</html>
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