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1 <!doctype html>
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2 <head>
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3 <meta charset="utf-8">
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4 <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
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5 <title>QR Code Generator</title>
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6
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7 <style type="text/css">
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8 * {
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9 position: relative;
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10 box-sizing: border-box;
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11 }
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12
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13 html {
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14 height: 100%;
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15 margin: 0;
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16 padding: 0;
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17 font-family: sans-serif;
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18 font-size: 12px;
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19 }
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20
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21 body {
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22 margin: 0;
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23 padding: 10px;
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24 height: 100%;
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25 }
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26
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27 .inputbox {
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28 width: 100%;
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29 margin-bottom: 10px;
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30 resize: vertical;
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31 font-family: monospace;
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32 }
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33
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34 .page {
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35 width: 100%;
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36 height: 100%;
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37 max-width: 600px;
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38 margin: 0 auto;
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39 display: flex;
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40 flex-direction: column;
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41 padding: 10px;
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42 }
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43
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44 .page__main {
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45 flex: 1;
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46 }
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47
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1
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48 .outputbox {
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49 will-change: opacity;
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50 }
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51
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52 .outputbox.js-hidden {
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53 opacity: 0;
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54 }
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55
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56 .title {
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57 font-size: 16px;
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58 }
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59 </style>
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60 </head>
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61 <body>
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62 <div class="page">
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63 <div class="page__main">
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64 <h1>QR Code Generator</h1>
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65
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66 <p>
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2
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67 Type something and get its QR code (almost) immediately.
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68 </p>
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69
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70 <textarea class="inputbox js-qr-input" rows="4" autofocus></textarea>
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71
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1
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72 <div class="outputbox js-qr-output"></div>
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73 </div>
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74
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75 <div>
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76 <hr>
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77
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78 <a href="https://bitbucket.org/nanaya1/qr-html">Source</a>
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79 </div>
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80 </div>
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81
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82 <script src="qrcode.min.js"></script>
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2
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83 <script src="lodash.min.js"></script>
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84
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85 <script>
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3
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86 var inputDom = document.getElementsByClassName("js-qr-input")[0]
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2
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87 var outputDom = document.getElementsByClassName("js-qr-output")[0]
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88 var qr = new QRCode(outputDom)
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89
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3
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90 var refreshCode = function() {
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91 var text = inputDom.value
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0
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92
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93 if (text !== "") {
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2
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94 qr.makeCode(text)
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95 outputDom.classList.remove('js-hidden')
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1
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96 } else {
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97 outputDom.classList.add('js-hidden')
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98 }
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2
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99 }
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100
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101 inputDom.addEventListener('input', _.debounce(refreshCode, 100))
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102 refreshCode()
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103 </script>
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104 </body>
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