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read-a-drivers-license.html
521 lines (463 loc) · 18.3 KB
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read-a-drivers-license.html
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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" />
<meta name="description" content="Read the PDF417 barcode on Driver's Licenses instantly with this barcode reader." />
<meta name="keywords" content="read driver's license barcode" />
<link rel="canonical" href="https://demo.dynamsoft.com/samples/dbr/js/use-case/read-a-drivers-license.html" />
<title>Dynamsoft Barcode Reader Simple Sample - Read Driver License</title>
<script src="https://cdn.jsdelivr.net/npm/dynamsoft-core@3.2.10/dist/core.js"></script>
<script src="https://cdn.jsdelivr.net/npm/dynamsoft-license@3.2.10/dist/license.js"></script>
<script src="https://cdn.jsdelivr.net/npm/dynamsoft-utility@1.2.10/dist/utility.js"></script>
<script src="https://cdn.jsdelivr.net/npm/dynamsoft-barcode-reader@10.2.10/dist/dbr.js"></script>
<script src="https://cdn.jsdelivr.net/npm/dynamsoft-capture-vision-router@2.2.10/dist/cvr.js"></script>
<script src="https://cdn.jsdelivr.net/npm/dynamsoft-camera-enhancer@4.0.2/dist/dce.js"></script>
<script src="https://cdn.jsdelivr.net/npm/dynamsoft-code-parser@2.2.10/dist/dcp.js"></script>
<style>
* {
margin: 0;
padding: 0;
}
body {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
overflow: hidden;
width: 100vw;
height: 100vh;
}
#span-tip {
position: absolute;
font-size: 1rem;
color: #fe8e14;
top: 1vh;
}
h1 {
font-size: 1.5em;
}
a {
color: #fe8d14;
}
a:hover {
color: #fe8d14a1;
}
strong {
color: rgb(254, 142, 20);
}
#svg-start {
width: 100px;
height: 100px;
fill: #aaa;
cursor: pointer;
}
#div-main {
display: flex;
flex-direction: row;
align-items: center;
justify-content: center;
width: 50vw;
height: 60vh;
}
.dce-bg-camera {
position: absolute;
left: 0;
top: 0;
right: 0;
bottom: 0;
margin: auto;
width: 40%;
height: 40%;
fill: #aaa;
}
#div-ui-container {
display: none;
width: 100%;
height: 100%;
}
#div-result-container {
display: none;
position: fixed;
width: 50vw;
height: 70vh;
z-index: 10;
color: white;
font-size: small;
background: #222222;
margin-top: 30px;
}
#div-result-container .div-result-header {
width: 100%;
height: 30px;
background-color: #000;
font-size: 16px;
line-height: 30px;
padding-left: 10px;
box-sizing: border-box;
}
#div-result-container .div-result-body {
height: calc(70vh - 30px);
overflow-y: auto;
padding: 5px;
box-sizing: border-box;
}
#div-result-container p {
padding: 5px;
margin: 0;
}
#div-message-container {
display: none;
align-items: center;
width: 50vw;
padding: 8px 16px;
margin: -92px 0 10px 0;
box-sizing: border-box;
border-radius: 4px;
position: relative;
background-color: #f4f4f5;
color: #909399;
overflow: hidden;
transition: opacity 0.2s;
}
#div-message-container .em-icon {
font-size: 28px;
width: 28px;
line-height: 0;
}
#div-message-container .div-message-content {
display: table-cell;
padding: 0 8px;
}
.div-message-content>span {
font-weight: 700;
font-size: 14px;
line-height: 18px;
}
.div-message-content>p {
font-size: 13px;
margin: 5px 0 0;
line-height: 20px;
}
.api_highlight {
font-weight: 700;
background-color: #ddd;
border-radius: 4px;
padding: 2px;
}
.em-close {
position: absolute;
top: 12px;
right: 15px;
cursor: pointer;
line-height: 0;
}
/* Small devices */
@media only screen and (max-width: 1000px) {
#div-message-container {
width: 90vw;
}
#div-main {
width: 80vw;
}
#div-result-container {
width: 80vw;
}
}
</style>
</head>
<body>
<span id="span-tip">Aim at the barcode on the driver's license.</span>
<h1>Read A Driver's License</h1>
<div id="div-message-container">
<em class="em-icon"><svg viewBox="0 0 1024 1024" xmlns="http://www.w3.org/2000/svg" p-id="3665" width="32" height="32">
<path d="M544 789.333333h105.173333a10.666667 10.666667 0 0 0 10.666667-10.666666v-0.362667l-3.232-94.304a32 32 0 0 1 14.293333-27.765333C750.933333 603.189333 800 513.792 800 416c0-159.061333-128.938667-288-288-288S224 256.938667 224 416c0 97.813333 49.098667 187.232 129.141333 240.266667a32 32 0 0 1 14.314667 25.578666l3.338667 97.184a10.666667 10.666667 0 0 0 10.666666 10.304H480V572.693333l-76.64-81.429333a32 32 0 0 1 46.613333-43.861333l63.36 67.328 72.693334-68.661334a32 32 0 0 1 43.946666 46.528L544 573.792V789.333333z m320-373.333333a351.530667 351.530667 0 0 1-142.826667 283.146667l2.634667 76.96A74.666667 74.666667 0 0 1 649.173333 853.333333h-267.733333a74.666667 74.666667 0 0 1-74.624-72.106666l-2.784-81.194667A351.541333 351.541333 0 0 1 160 416C160 221.6 317.6 64 512 64s352 157.6 352 352zM416 960a32 32 0 0 1 0-64h192a32 32 0 0 1 0 64H416z" p-id="3666" fill="#909399"></path>
</svg>
</em>
<div class="div-message-content">
<span>Can't get scanning result for a long time?</span>
<p>
After setting the
<span class="api_highlight">singleFrameMode</span> as true, you can
open the camera to shoot (mobile device) or choose from local to get a
high-definition picture for recognition.
<a href="javascript:void(0)" id="a-switch">Have a try</a>
</p>
<em class="em-close"><svg viewBox="0 0 1024 1024" xmlns="http://www.w3.org/2000/svg" p-id="4604" width="10" height="10">
<path d="M512 456.310154L94.247385 38.557538a39.542154 39.542154 0 0 0-55.689847 0 39.266462 39.266462 0 0 0 0 55.689847L456.310154 512 38.557538 929.752615a39.542154 39.542154 0 0 0 0 55.689847 39.266462 39.266462 0 0 0 55.689847 0L512 567.689846l417.752615 417.752616c15.163077 15.163077 40.290462 15.36 55.689847 0a39.266462 39.266462 0 0 0 0-55.689847L567.689846 512 985.442462 94.247385a39.542154 39.542154 0 0 0 0-55.689847 39.266462 39.266462 0 0 0-55.689847 0L512 456.310154z" p-id="4605" fill="#c0c4cc"></path>
</svg>
</em>
</div>
</div>
<div id="div-main">
<svg id="svg-start" viewBox="0 0 2048 1792">
<path d="M1024 672q119 0 203.5 84.5t84.5 203.5-84.5 203.5-203.5 84.5-203.5-84.5-84.5-203.5 84.5-203.5 203.5-84.5zm704-416q106 0 181 75t75 181v896q0 106-75 181t-181 75h-1408q-106 0-181-75t-75-181v-896q0-106 75-181t181-75h224l51-136q19-49 69.5-84.5t103.5-35.5h512q53 0 103.5 35.5t69.5 84.5l51 136h224zm-704 1152q185 0 316.5-131.5t131.5-316.5-131.5-316.5-316.5-131.5-316.5 131.5-131.5 316.5 131.5 316.5 316.5 131.5z" />
</svg>
<div id="div-ui-container"></div>
</div>
<div id="div-result-container">
<div class="div-result-header">
Results:
<em class="em-close" class="message_box_closebtn"><svg viewBox="0 0 1024 1024" xmlns="http://www.w3.org/2000/svg" p-id="4604" width="16" height="16">
<path d="M512 456.310154L94.247385 38.557538a39.542154 39.542154 0 0 0-55.689847 0 39.266462 39.266462 0 0 0 0 55.689847L456.310154 512 38.557538 929.752615a39.542154 39.542154 0 0 0 0 55.689847 39.266462 39.266462 0 0 0 55.689847 0L512 567.689846l417.752615 417.752616c15.163077 15.163077 40.290462 15.36 55.689847 0a39.266462 39.266462 0 0 0 0-55.689847L567.689846 512 985.442462 94.247385a39.542154 39.542154 0 0 0 0-55.689847 39.266462 39.266462 0 0 0-55.689847 0L512 456.310154z" p-id="4605" fill="#ffffff"></path>
</svg>
</em>
</div>
<div class="div-result-body"></div>
</div>
<script>
if (location.protocol === "file:") {
const message = `The page is opened via file:// and our SDKs may not work properly. Please open the page via https:// or host it on "http://localhost/".`;
console.warn(message);
alert(message);
}
</script>
<script>
/** LICENSE ALERT - README
* To use the library, you need to first specify a license key using the API "initLicense()" as shown below.
*/
Dynamsoft.License.LicenseManager.initLicense(
"DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9"
);
/**
* You can visit https://www.dynamsoft.com/customer/license/trialLicense?utm_source=github&product=dbr&package=js to get your own trial license good for 30 days.
* Note that if you downloaded this sample from Dynamsoft while logged in, the above license key may already be your own 30-day trial license.
* For more information, see https://www.dynamsoft.com/barcode-reader/programming/javascript/user-guide/?ver=10.2.10&utm_source=github#specify-the-license or contact support@dynamsoft.com.
* LICENSE ALERT - THE END
*/
// Preload "BarcodeReader" module for reading barcodes. It will save time on the initial decoding by skipping the module loading.
Dynamsoft.Core.CoreModule.loadWasm(["DBR", "DCP"]);
Dynamsoft.DCP.CodeParserModule.loadSpec("AAMVA_DL_ID");
Dynamsoft.DCP.CodeParserModule.loadSpec("AAMVA_DL_ID_WITH_MAG_STRIPE");
Dynamsoft.DCP.CodeParserModule.loadSpec("SOUTH_AFRICA_DL");
const svgStart = document.querySelector("#svg-start");
const openImageBtn = document.querySelector("#btn-open-image");
const divUIContainer = document.querySelector("#div-ui-container");
const divResultContainer = document.querySelector(
"#div-result-container"
);
// timer for displaying MessageBox
let timer;
let oriParseInfo = {};
const init = async () => {
try {
const parser = await Dynamsoft.DCP.CodeParser.createInstance();
// Create a `CameraEnhancer` instance for camera control and a `CameraView` instance for UI control.
const cameraView = await Dynamsoft.DCE.CameraView.createInstance();
const cameraEnhancer =
await Dynamsoft.DCE.CameraEnhancer.createInstance(cameraView);
divUIContainer.append(cameraView.getUIElement()); // Get default UI and append it to DOM.
cameraEnhancer.setScanRegion({
x: 5,
y: 5,
width: 90,
height: 90,
isMeasuredInPercentage: true,
}); // Set a scan region
// Create a `CaptureVisionRouter` instance and set `CameraEnhancer` instance as its image source.
const router =
await Dynamsoft.CVR.CaptureVisionRouter.createInstance();
router.setInput(cameraEnhancer);
// Filter out unchecked and duplicate results.
const filter = new Dynamsoft.Utility.MultiFrameResultCrossFilter();
filter.enableResultCrossVerification("barcode", true); // Filter out unchecked barcodes.
await router.addResultFilter(filter);
// Define a callback for results.
const resultReceiver = new Dynamsoft.CVR.CapturedResultReceiver();
resultReceiver.onCapturedResultReceived = async (result) => {
const resultItems = result.items;
const barcodeResult = resultItems.find((item) => item.type === Dynamsoft.Core.EnumCapturedResultItemType.CRIT_BARCODE);
if (!barcodeResult) {
if (cameraEnhancer.singleFrameMode !== "disabled") {
document.querySelector(".div-result-body").innerText =
"No PDF417 Barcode Found!";
divResultContainer.style.display = "block";
document.addEventListener("mousedown", clickToHide);
}
return;
}
if (
barcodeResult &&
cameraEnhancer.singleFrameMode === "disabled"
) {
Dynamsoft.DCE.Feedback.beep(); // Trigger a beep.
}
document.querySelector("#div-message-container").style.display =
"none";
clearTimeout(timer);
const success = await extractResultAlert(barcodeResult.bytes);
if (success) {
router.stopCapturing();
}
};
router.addResultReceiver(resultReceiver);
let ss = await router.getSimplifiedSettings("ReadDenseBarcodes");
ss.barcodeSettings.barcodeFormatIds =
Dynamsoft.DBR.EnumBarcodeFormat.BF_PDF417;
await router.updateSettings("ReadDenseBarcodes", ss);
return {
parser,
cameraView,
cameraEnhancer,
router,
};
} catch (ex) {
let errMsg = ex.message || ex;
console.error(errMsg);
alert(errMsg);
}
};
const pInit = init();
// decode video from camera
svgStart.addEventListener("click", async () => {
document.querySelector("h1").style.display = "none";
svgStart.style.display = "none";
await switchToVideo();
});
document
.querySelector("#div-result-container .em-close")
.addEventListener("click", closeResultAlert);
document
.querySelector("#a-switch")
.addEventListener("click", async () => {
document.querySelector("#span-tip").innerHTML =
"Click below to select a picture to read. <a href='javascript:void(0)' onclick='backToCameraMode()'>Back to camera mode</a>";
await switchToSingleFrameMode();
document.querySelector("#div-message-container").style.display =
"none";
});
document
.querySelector(".div-message-content .em-close")
.addEventListener("click", () => {
document.querySelector("#div-message-container").style.display =
"none";
});
async function backToCameraMode() {
closeResultAlert();
document.querySelector("#span-tip").innerText =
"Aim at the barcode on the driver's license.";
await switchToVideo();
}
async function switchToSingleFrameMode() {
const { cameraEnhancer, router } = await pInit;
router.stopCapturing();
cameraEnhancer.close();
cameraEnhancer.singleFrameMode = "image";
await cameraEnhancer.open();
await router.startCapturing("ReadDenseBarcodes");
}
async function switchToVideo() {
document.querySelector("#div-main").style.display = "block";
document.querySelector("#span-tip").innerText =
"Aim at the barcode on the driver's license.";
document.querySelector("#span-tip").hidden = false;
divUIContainer.style.display = "block";
const { cameraEnhancer, router } = await pInit;
router.stopCapturing();
cameraEnhancer.close();
cameraEnhancer.singleFrameMode = "disabled";
await cameraEnhancer.open();
await router.startCapturing("ReadDenseBarcodes");
timer = setTimeout(() => {
if (cameraEnhancer.singleFrameMode === "disabled") {
document.querySelector("#div-message-container").style.display =
"flex";
}
}, 3000);
}
async function extractResultAlert(bytesToParse) {
function createNode(type, txt) {
let node = document.createElement(type);
if (txt) node.innerText = txt;
return node;
}
try {
const { parser } = await pInit;
let parsedDLInfo = await parser.parse(bytesToParse);
if (parsedDLInfo.exception) return false;
parsedDLInfo = JSON.parse(parsedDLInfo.jsonString);
console.log(parsedDLInfo);
let resultShowNode = document.createElement("p");
oriParseInfo = {};
if (parsedDLInfo.CodeType === "AAMVA_DL_ID") {
for (let info of parsedDLInfo.ResultInfo) {
if (info.FieldName !== "commonSubfile") continue;
if (info.ChildFields) {
wrapResultObject(info.ChildFields);
}
}
} else if (parsedDLInfo.CodeType === "AAMVA_DL_ID_WITH_MAG_STRIPE") {
for (let info of parsedDLInfo.ResultInfo) {
if (info.FieldName.includes("track")) {
if (info.ChildFields) {
wrapResultObject(info.ChildFields);
}
}
}
} else if (parsedDLInfo.CodeType === "SOUTH_AFRICA_DL") {
for (let info of parsedDLInfo.ResultInfo) {
oriParseInfo[info.FieldName] = info.Value;
if (info.ChildFields) {
wrapResultObject(info.ChildFields);
}
}
}
for (let o in oriParseInfo) {
if (oriParseInfo[o]) {
resultShowNode.appendChild(createNode("span", o));
resultShowNode.appendChild(createNode("br"));
resultShowNode.appendChild(createNode("strong", oriParseInfo[o]));
resultShowNode.appendChild(createNode("br"));
resultShowNode.appendChild(
createNode("span", "------------------------------")
);
resultShowNode.appendChild(createNode("br"));
}
}
document.querySelector(".div-result-body").innerHTML = "";
document
.querySelector(".div-result-body")
.appendChild(resultShowNode);
divResultContainer.style.display = "block";
document.addEventListener("mousedown", clickToHide);
return true;
} catch (ex) {
alert(ex.message);
return false;
}
}
function wrapResultObject(childFields) {
for (let childField of childFields) {
for (let field of childField) {
if (!["dataElementSeparator", "segmentTerminator", "subfile", "subfileType"].includes(field.FieldName)) {
oriParseInfo[field.FieldName] = field.Value;
}
if (field.ChildFields) {
wrapResultObject(field.ChildFields);
}
}
}
}
function clickToHide(e) {
if (e.target === document.body || e.target.id === "span-tip") {
closeResultAlert();
document.removeEventListener("click", arguments.callee);
}
}
async function closeResultAlert() {
divResultContainer.style.display = "none";
document.querySelector(".div-result-body").innerText = "";
const { cameraEnhancer, router } = await pInit;
if (cameraEnhancer.singleFrameMode === "disabled") {
timer = setTimeout(() => {
if (cameraEnhancer.singleFrameMode === "disabled") {
document.querySelector("#div-message-container").style.display =
"flex";
}
}, 3000);
}
await router.startCapturing("ReadDenseBarcodes");
}
</script>
</body>
</html>