offline-example/index.html at master · yugniro/offline-example · GitHub

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<!doctype html>
<html lang="en">
  <head>
    <meta charset='utf-8'>
    <title>Test offline application</title>
    <meta http-equiv='X-UA-Compatible' content='IE=edge'>
    <meta name='viewport' content='width=device-width, initial-scale=1'>
  </head>
  <body>
  <div><a href="./page2.html">Перейти на страницу №2</a></div>
  <div>
  <p>Это демо-страничка показывающая, как работает веб-сайт в режиме offline. Отключите интернет и пользуйтесь сайтом дальше.</p>
  <p>Пример ввода данных и сохранения в локальную БД</p>
  <form id="mainForm">
  <table>
    <tr>
    <td>Length
    <td>Age</td>
    <td>Sex</td>
    <td>Weight</td>
    </tr>
    <tr>
    <td><input name="length" type="text" /></td>
    <td><input name="age" type="text" /></td>
    <td><input name="sex" type="text" /></td>
    <td><input name="weight" type="text" /></td>
    </tr>
    <tr>
    <td><input name="length" type="text" /></td>
    <td><input name="age" type="text" /></td>
    <td><input name="sex" type="text" /></td>
    <td><input name="weight" type="text" /></td>
    </tr>
    <tr>
    <td><input name="length" type="text" /></td>
    <td><input name="age" type="text" /></td>
    <td><input name="sex" type="text" /></td>
    <td><input name="weight" type="text" /></td>
    </tr>
    <tr>
    <td><input name="length" type="text" /></td>
    <td><input name="age" type="text" /></td>
    <td><input name="sex" type="text" /></td>
    <td><input name="weight" type="text" /></td>
    </tr>
  </table>
  <label for="dataName">Название хранилища: </label> <input id="dataName" value="my_storage" />
  <button id="save" type="button">Схоронить в browserStorage</button>
  <button id="isOn" type="button">isOnline?</button>
  </form>

  <p>Ранее сохраненные данные: </p>
  <ul id="dataList">

  </ul>

  <p id="localValue"></p>
  </div>
  <script src="js/jquery.min.js"></script>
    <script>
      if('serviceWorker' in navigator) {
        navigator.serviceWorker.register('./offline-worker.js', { scope: '/offline-example/' }) // scope: '/'
          .then(function(registration) {
                console.log('Service Worker for Offline is registered');
          });

        navigator.serviceWorker.ready.then(function(registration) {
           console.log('Service Worker Ready');
        });
      }


      for (var it in localStorage) {
        if (it.startsWith('data_')) {
            console.log("Found local storage by key: " + it);
        }
      }

      // example of usage localDatastore
      var lsVal = localStorage.getItem("data_test1");
      if (lsVal) {
        console.log("Get var from localStorage: " + lsVal);
        document.getElementById('localValue').innerHTML = lsVal;
      } else {
        console.log("Local storage is empty. Set var data_test1");
        localStorage.setItem("data_test1", "Some heavy string value for permament store var data_test1");
      }

      $(document).ready(function(){
        $('#dataName').val('fish_idx_' + Math.floor(Math.random() * 100) + 1);
          // extended example with table
          $('#save').on('click', function(){
            var arrayData = $('#mainForm').serializeArray();
            var json = JSON.stringify(arrayData);
            var keyName = 'data_' + $('#dataName').val();
            localStorage.setItem(keyName, json);
            alert('Данные успешно схоронены в локальное хранилище браузера');
            $('#mainForm').find('input[type=text]').val("");
            $('#dataName').val('fish_idx_' + Math.floor(Math.random() * 100) + 1);
          });
          // list exist data
          for (var stor in localStorage) {
            if (stor.startsWith('data_')) {
                $('#dataList').append('<li><a href="javascript:void(0);" id="' + stor + '" class="click_data">' + stor + '</a></li>');
            }
          }

          // event onclick for dynamic local data
          $('html').on('click', '.click_data', function(){
            var sName = $(this).attr('id');
            var sVal = localStorage.getItem(sName);
            alert(sVal);
          });

          $('#isOn').on('click', function(){
            $.getJSON('test.json', function(){
                alert('online');
            })
            .fail(function(){
                alert('Offline');
            })
          });
      });
    </script>
  </body>
</html>