forms.html

Created: November-22, 2018
<!DOCTYPE html>
<html>
  <head>
    <base target="_top">
    <script>
    
    setInterval(
    function () 
    { 
      document.getElementById('messages').innerHTML = 'Event Timer Fetching';
      google.script.run
        .withSuccessHandler(onSuccess)
        .withFailureHandler(onFailure)
        .fetchFromGoogleDrive();
    }, 60000);
    
    function callFetchGoogleDrive() {
      document.getElementById('messages').innerHTML = 'Fetching';
      google.script.run
        .withSuccessHandler(onSuccess)
        .withFailureHandler(onFailure)
        .fetchFromGoogleDrive();   
    }
      
    function onSuccess(sHref) 
    {
      if(new String(sHref).valueOf() == new String("").valueOf())
      {
        document.getElementById('messages').innerHTML = 'Nothing to download';
      }
      else
      {
        document.getElementById('messages').innerHTML = 'Success';
        document.getElementById('HiddenClick').href = sHref;
        document.getElementById('HiddenClick').click(); // Must enable Pop Ups for https://script.google.com
      }
    }
    
    function onFailure(error) 
    {
      document.getElementById('messages').innerHTML = error.message;
    }
    
    </script>
  </head>
  <body>
    <div id="messages">Waiting to DownLoad!</div>
    <div>
      <a id="HiddenClick" href="" target="_blank" onclick="google.script.host.close" style="visibility: hidden;">Hidden Click</a>
    </div>
    <div>
      <button type="button" onclick='callFetchGoogleDrive();' id="Fetch">Fetch Now!</button> 
    </div>
  </body>
</html>