mathu/settings.html at master · paramt/mathu · GitHub

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<!DOCTYPE html>
<html lang="en" dir="ltr">
  <head>
    <meta charset="utf-8">
    <title>Mathu | Settings</title>
    <link rel="stylesheet" href="style.css">
    <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.3.1/css/all.css" integrity="sha384-mzrmE5qonljUremFsqc01SB46JvROS7bZs3IO2EmfFsd15uHvIt+Y8vEf7N7fWAU" crossorigin="anonymous">
    <link href="https://fonts.googleapis.com/css?family=Fredoka+One" rel="stylesheet">
    <meta name="viewport" content="width=device-width, initial-scale=1">

    <!-- favicon -->
    <link rel="icon" type="image/png" sizes="32x32" href="/favicon/favicon-32x32.png">
    <link rel="icon" type="image/png" sizes="16x16" href="/favicon/favicon-16x16.png">
    <link rel="shortcut icon" href="/favicon/favicon.ico">
  </head>
  <body>
    <h1>Settings</h1>
    <div id="explanation-wrapper">
      <div id="explanation">
        <p>You will not be able to submit your score if you change any of these settings.</p>
      </div>
    </div>

    <h2>Question Count</h2>
    <input autofocus id="qCount" style="opacity:1;"><br><br><br>

    <input type="checkbox" autofocus id="include-neg" style="opacity:1;">
    <h2 style="display: inline;">Include Negative Numbers</h2><br><br><br>

    <button class="button red" onclick="resetSettings();">Reset</button><br><br>
    <button class="button" onclick="updateSettings(); history.back(-1)">Save</button>

    <script>
      window.onload = function(){
        document.getElementById("qCount").value = localStorage.getItem("qCount");
        document.getElementById("include-neg").checked = JSON.parse(localStorage.getItem("negSubtraction"));
      }

      function updateSettings(){
        localStorage.setItem("qCount", document.getElementById("qCount").value);
        localStorage.setItem("negSubtraction", document.getElementById("include-neg").checked);
      }

      function resetSettings(){
        document.getElementById("qCount").value = 10;
        document.getElementById("include-neg").checked = true;

        localStorage.setItem("qCount", 10);
        localStorage.setItem("include-neg", true)
      }

    </script>
  </body>
</html>