Solved

Streaming text, with focus always on bottom

Posted on 1997-10-30
2
198 Views
Last Modified: 2013-12-25
I found out a way in Netscape to stream text to the browser without any buffering.  In other words, as my CGI programs gets the data (trace data from another program), it sends it to the browser and the browser keeps streaming the data.  Only nice feature missing would be for browser to show the text at the bottom and scroll, instead of keeping focus on top.  I suspect JavaScript might help here, but I know very little about it.  Java's not a realistic option.  
0
Comment
Question by:steve_howell
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 6

Accepted Solution

by:
Holger101497 earned 90 total points
ID: 1855394
The solution is not so complicated: At the top of your file, you have to send the following code:
<script language="JavaScript1.1">
<!-- hide code
function scrollIt() {
  window.scroll(0,100000); //scroll to bottom
  scr_id=setTimeout("scrollIt()",1000);
}
scrollIt();
// end of hiding -->
</script>

This will scroll the window to the bottom once per second (every 1000 milliseconds) (the function calls itself).
Then, when your file is complete, the last lines to send are:
<script language="JavaScript1.1">
clearTimeout(scr_id);
</script>

this stops the scrolling.
If you want to see this code "in action", you can go to netchat.city.de - this is a very nice real-time chat that uses the same technique: it keeps sending lines as people "speak" and displays them right away.

P.S.: This will only work in Netscape 3+, because IE does not support a scroll-function. IE 4 might support it and it would then probably be the same one.

Good luck ;-)
0
 

Author Comment

by:steve_howell
ID: 1855395
Great answer.  This should solve my problem perfectly.  
0

Featured Post

[Webinar] Learn How Hackers Steal Your Credentials

Do You Know How Hackers Steal Your Credentials? Join us and Skyport Systems to learn how hackers steal your credentials and why Active Directory must be secure to stop them. Thursday, July 13, 2017 10:00 A.M. PDT

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

An enjoyable and seamless user experience can go a long way on an eCommerce site. While a cohesive layout and engaging copy play roles in creating a positive user experience, some sites neglect aspects that seem marginal but in actuality prove very …
When the s#!t hits the fan, you don’t have time to look up who’s on call, draft emails, call collaborators, or send text messages. An instant chat window is definitely the way to go, especially one like HipChat. HipChat is a true business app. An…
The viewer will learn how to look for a specific file type in a local or remote server directory using PHP.
The is a quite short video tutorial. In this video, I'm going to show you how to create self-host WordPress blog with free hosting service.

623 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question