Aura How to show random images on poweroff?

babloyi · 09-10-2018, 01:41 PM

Hi all!

I've got KSM and koreader on my Kobo Aura, and I want to show random images from a list. If I save my poweroff_info.html as this:

Code:

<html>
<head>
<script type="text/javascript">
  var imageURLs = [
       "1.png"
     , "2.png"
     , "3.png"
     , "4.png"
     , "5.png"
     , "6.png"
  ];
  function getImageTag() {
    var img = '<img src="/mnt/onboard/.adds/kbmenu_user/txt/';
    var randomIndex = Math.floor(Math.random() * imageURLs.length);
    img += imageURLs[randomIndex];
    img += '"/>';
    return img;
  }
</script>
</head>
<body>
<script type="text/javascript">
  document.write(getImageTag());
</script>
</body>
</html>

Nothing happens, and the reader powers off with a blank white page.

However, if I do this:

Code:

<html>
<body>
	<img src="/mnt/onboard/.adds/kbmenu_user/txt/1.png"/>
</body>
</html>

It shows 1.png fine. I've not done html in ages, and I'm not that skilled in javascript, so is that the problem, or is it something else? I copied the code off the net, but if I run it in a random folder on my PC, with the path corrected, it works fine.

tshering · 09-10-2018, 02:37 PM

KSM displays the power off html without javascript support. For random html display see this post.

09-10-2018, 01:41 PM	#1
babloyi Member Posts: 16 Karma: 10 Join Date: Feb 2015 Device: none	How to show random images on poweroff? Hi all! I've got KSM and koreader on my Kobo Aura, and I want to show random images from a list. If I save my poweroff_info.html as this: Code: <html> <head> <script type="text/javascript"> var imageURLs = [ "1.png" , "2.png" , "3.png" , "4.png" , "5.png" , "6.png" ]; function getImageTag() { var img = '<img src="/mnt/onboard/.adds/kbmenu_user/txt/'; var randomIndex = Math.floor(Math.random() * imageURLs.length); img += imageURLs[randomIndex]; img += '"/>'; return img; } </script> </head> <body> <script type="text/javascript"> document.write(getImageTag()); </script> </body> </html> Nothing happens, and the reader powers off with a blank white page. However, if I do this: Code: <html> <body> <img src="/mnt/onboard/.adds/kbmenu_user/txt/1.png"/> </body> </html> It shows 1.png fine. I've not done html in ages, and I'm not that skilled in javascript, so is that the problem, or is it something else? I copied the code off the net, but if I run it in a random folder on my PC, with the path corrected, it works fine.

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09-10-2018, 02:37 PM	#2
tshering Wizard Posts: 3,489 Karma: 2914715 Join Date: Jun 2012 Device: kobo touch	KSM displays the power off html without javascript support. For random html display see this post.

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