barcode-reader-javascript-samples/scenarios/cart-builder/index.html at main · Dynamsoft/barcode-reader-javascript-samples · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="utf-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>List-Builder - Scan to Cart Simulation</title>
  <link rel="stylesheet" href="./index.css">

  <!-- Include Dynamsoft Barcode Reader Bundle via CDN -->
  <script src="https://cdn.jsdelivr.net/npm/dynamsoft-barcode-reader-bundle@11.4.2000/dist/dbr.bundle.js"></script>
  <!-- If the network is unstable or you prefer to self-host the SDK, uncomment the line below to load it locally -->
  <!-- <script src="../../../dist/dbr.bundle.js"></script> -->
</head>

<body>
  <header>
    <h1>🛒 Scan Barcode to Add Items to Cart</h1>
  </header>

  <!-- Scan Button -->
  <button class="scan-btn">
    Scan Barcode
    <svg class="barcode-icon" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
      <rect x="2" y="4" width="2" height="16" fill="black" />
      <rect x="6" y="4" width="1" height="16" fill="black" />
      <rect x="9" y="4" width="2" height="16" fill="black" />
      <rect x="13" y="4" width="1" height="16" fill="black" />
      <rect x="16" y="4" width="2" height="16" fill="black" />
      <rect x="20" y="4" width="1" height="16" fill="black" />
    </svg>
  </button>

  <!-- Floating Scanner Container -->
  <div class="floatingDiv" hidden>
    <svg class="btn-close" id="closed" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="26" height="26" viewBox="0 0 24 24" style="display: inline;">
      <g id="Group_2681" data-name="Group 2681">
        <path id="Path_8292" data-name="Path 8292" d="M12,0h0A12,12,0,1,0,24,12,12.013,12.013,0,0,0,12,0m0,1.914A10.086,10.086,0,1,1,1.914,12,10.1,10.1,0,0,1,12,1.914" fill="#fff"></path>
        <path id="Path_8293" data-name="Path 8293" d="M7.416,16.578a.985.985,0,0,0,1.351,0L12,13.35l3.21,3.208a.958.958,0,0,0,1.665-.6.988.988,0,0,0-.3-.738L13.351,12l3.226-3.226a.959.959,0,0,0,0-1.353l0,0a.959.959,0,0,0-1.353,0L12,10.647,8.755,7.4A.957.957,0,0,0,7.42,8.774L10.646,12,7.421,15.227a.956.956,0,0,0-.005,1.351" fill="#fff"></path>
      </g>
    </svg>
  </div>

  <!-- Shopping Cart -->
  <div class="cart">
    <h2>Simulated Shopping Cart</h2>
    <div class="cart-items">
      <p>No items in cart. Start scanning!</p>
    </div>
  </div>

  <script>
    const dragDiv = document.querySelector(".floatingDiv");

    Dynamsoft.License.LicenseManager.initLicense("DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9");

    const pInit = (async () => {
      const cameraView = await Dynamsoft.DCE.CameraView.createInstance();
      const cameraEnhancer = await Dynamsoft.DCE.CameraEnhancer.createInstance(cameraView);
      const cvRouter = await Dynamsoft.CVR.CaptureVisionRouter.createInstance();

      cvRouter.setInput(cameraEnhancer);

      const resultReceiver = new Dynamsoft.CVR.CapturedResultReceiver();
      resultReceiver.onDecodedBarcodesReceived = async (result) => {
        simulateAddingToCart(result.barcodeResultItems[0].text);
      }
      await cvRouter.addResultReceiver(resultReceiver);

      const filter = new Dynamsoft.Utility.MultiFrameResultCrossFilter();
      filter.enableResultCrossVerification("barcode", true);
      filter.enableResultDeduplication("barcode", true);
      await cvRouter.addResultFilter(filter);

      const uiElement = cameraView.getUIElement();
      uiElement.querySelector(".dce-sel-camera").style.display = "none";
      uiElement.querySelector(".dce-sel-resolution").style.display = "none";
      cameraEnhancer.setVideoFit("cover");
      dragDiv.append(uiElement);

      return {
        cameraView,
        cameraEnhancer,
        cvRouter
      }
    })();
    // Function to initialize and launch the barcode scanner
    async function startScanner() {
      const { cameraView, cameraEnhancer, cvRouter } = await pInit;
      await cameraEnhancer.open();
      await cvRouter.startCapturing("ReadBarcodes_SpeedFirst");
      dragDiv.hidden = false;
    }

    async function stopScanner() {
      const { cameraEnhancer, cvRouter } = await pInit;
      await cvRouter.stopCapturing();
      await cameraEnhancer.close();
      dragDiv.hidden = true;
    }

    // Product List
    const products = [
      { name: "Wireless Mouse", price: 19.99 },
      { name: "Bluetooth Speaker", price: 29.99 },
      { name: "USB-C Cable", price: 9.99 },
      { name: "Notebook", price: 4.99 },
      { name: "Water Bottle", price: 14.99 },
      { name: "Laptop Stand", price: 34.99 },
      { name: "Wireless Keyboard", price: 24.99 },
      { name: "Portable Charger", price: 39.99 },
      { name: "LED Desk Lamp", price: 22.5 },
      { name: "Backpack", price: 49.99 },
      { name: "Earbuds", price: 17.99 },
      { name: "Smartphone Holder", price: 12.99 },
      { name: "Desk Organizer", price: 15.49 },
      { name: "Fitness Tracker", price: 59.99 },
      { name: "Coffee Mug", price: 8.99 },
      { name: "HDMI Cable", price: 6.99 },
      { name: "Flash Drive 64GB", price: 14.49 },
      { name: "Gaming Headset", price: 45.0 },
      { name: "Desk Chair Cushion", price: 27.99 },
      { name: "Sticky Notes Pack", price: 3.99 },
    ];

    let cart = [];

    // Simulate adding product to cart
    function simulateAddingToCart(barcodeText) {
      const product = {
        ...products[Math.floor(Math.random() * products.length)],
      };
      product.name += ` (${shortenString(barcodeText)})`;
      cart.push(product);
      updateCartDisplay();
    }

    // Shorten barcode text
    const shortenString = (str, max = 15) =>
      str.length <= max ? str : str.slice(0, max) + "...";

    // Update Cart UI
    function updateCartDisplay() {
      const cartDiv = document.querySelector(".cart-items");
      cartDiv.innerHTML = "";

      const header = document.createElement("div");
      header.className = "cart-item";
      header.innerHTML = `<strong>Item</strong><strong>Price</strong>`;
      cartDiv.appendChild(header);

      cart.forEach((item) => {
        const div = document.createElement("div");
        div.className = "cart-item";
        div.innerHTML = `<span>${item.name}</span><span>$${item.price.toFixed(
          2
        )}</span>`;
        cartDiv.appendChild(div);
      });
    }

    // Initialize Scan Button
    window.onload = () => {
      document.querySelector(".scan-btn").addEventListener("click", startScanner);
      document.querySelector(".btn-close").addEventListener("click", stopScanner);

      // Make the Floating Div Draggable
      let offsetX = 0, offsetY = 0, isDragging = false;

      dragDiv.addEventListener("mousedown", (e) => {
        isDragging = true;
        offsetX = e.clientX - dragDiv.offsetLeft;
        offsetY = e.clientY - dragDiv.offsetTop;
      });

      document.addEventListener("mousemove", (e) => {
        if (isDragging) {
          dragDiv.style.left = `${e.clientX - offsetX}px`;
          dragDiv.style.top = `${e.clientY - offsetY}px`;
        }
      });

      document.addEventListener("mouseup", () => (isDragging = false));

      dragDiv.addEventListener("touchstart", (e) => {
        isDragging = true;
        offsetX = e.touches[0].clientX - dragDiv.offsetLeft;
        offsetY = e.touches[0].clientY - dragDiv.offsetTop;
      });

      document.addEventListener("touchmove", (e) => {
        if (isDragging) {
          e.preventDefault();
          dragDiv.style.left = `${e.touches[0].clientX - offsetX}px`;
          dragDiv.style.top = `${e.touches[0].clientY - offsetY}px`;
        }
      }, { passive: false });

      document.addEventListener("touchend", () => (isDragging = false));
    };

    window.addEventListener("orientationchange", () => {
      dragDiv.style.left = "10%"
      dragDiv.style.top = "40%"
    })
  </script>
</body>

</html>