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JavaScript - Detecting Idle Time When There Is No Http Request
Hi
i want to find out the idle time when there is no http request is going on... i dont want to track any mouse or key board events... i dont want that... i read these thread but it is only about screen idle time http://www.codingforums.com/showthre...t=33068&page=2 i am trying to track the time when there is no transaction going between client and server and no http request is sending . if i will get that time then that time i can use to load my additional javascript files... so further transaction of user will become speed up.... i appreciate your help THANKS Similar TutorialsDear all, I would like to know if javascript can detect the screen idle time, if certain time come up in idle, then it will redirect to another page, any help will be appreciate, thanks! Eddie I have a text box that is updated automatically via a javascript that posts back. It works fine in IE, but not in firefox. I know I call the aspx correctly, because other code work. I tried to insert the URL that I send in the browser, and it returns data. So either the event handler is never called, or else the response is empty in firefox. Any ideas? Code: function CreateReq()
{
var xmlhttp=false;
/*@cc_on @*/
/*@if (@_jscript_version >= 5)
// JScript gives us Conditional compilation, we can cope with old IE versions.
// and security blocked creation of the objects.
try {
xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
} catch (E) {
xmlhttp = false;
}
}
@end @*/
if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
try {
xmlhttp = new XMLHttpRequest();
}
catch (e) {
xmlhttp=false;
}
}
if (!xmlhttp && window.createRequest) {
try {
xmlhttp = window.createRequest();
}
catch (e) {
xmlhttp=false;
}
}
return xmlhttp;
}
function fetch(){
var xmlhttp=CreateReq();
//alert ("fetch");
xmlhttp.open("GET", "CtrlLoader.aspx?MachinePrefix="+
document.getElementById('LblMachinePrefix').value+
"&RequestTime="+
(new Date()).getTime()+"&method=Refresh",false);//was true
xmlhttp.onreadystatechange=function() {
if (xmlhttp.readyState==4) {
document.getElementById('TxtCtrlConsole').value+=xmlhttp.responseText;
for (var i=0;i<200;i++)
document.getElementById('TxtCtrlConsole').scrollTop=document.getElementById('TxtCtrlConsole').scrollHeight;
}
}
xmlhttp.send(null);
}
Edit: it appears, that it s the onreadystate function that is never called. I tried adding an alert to it. I also tried init of onreadystatechange before open. No effect for firefox Hi, I am writing JavaScript code that runs inside HTTP page, I need to make XMLHttpRequest to a REST web service. The service is running on the same site but it only accepts HTTPS. I tried to prefix the URL with https:// and Firefox rejected it as cross-site scripting attempt. It's not really cross site as I am calling the same site. I don't have an option to redirect the entire page to https. Is there a proper way to implement this request? Sergey p.s. (sorry if this is a dumb question, I am a JavaScript newbie) Hi, I am trying to make a fuinction that, when called, will return the string that is retrned in text form from my php code. This is what i currently have, but it is just failing when it is run, what am i doing wrong? Code: function shortenUrl(url) {
var response;
var xmlhttp = new XMLHttpRequest();
xmlhttp.open("GET", "http://10.1.1.10/projects/short/?ext&url=" + encodeURIComponent(url), false);
xmlhttp.send(null);
xmlhttp.onload = function() {
var response = xmlhttp.responseText;
return response;
}
return "Failed!";
}
alert(shortenUrl("http://www.google.com.au/"));
Thanks Edit: ohh, and this is running chrome, so no standards issues I was wondering if there is a way to find the total round trip time of a request. Addins like firebug and chromes console show you this round trip time but i was hoping there was a way to extract it from the response itself. I would also like to know the response time from when the server sent the request and the client received it. I do not think this is possible since the server and client have different timing systems but it would be very useful. I have an html page that contains a div that has overflow:auto. Is there a way to detect if the scrollbar is displayed on the div? If the scrollbar is present then I want a message to be displayed inside another div. If there is no scrollbar then I don't want any message to appear. Thanks Is it possible to detect keystrokes on the keyboard? I want to detect the arrow keys in particular. I'm going through the online reference links in the sticky now, great resource! Hi guys, i would like a script that detects if quicktime is installed like this one here http://developer.apple.com/internet/...lplugins.shtml but i want it to offer the link to quicktime if not installed, and continue to load the player if quicktime is installed. Im thinking something like this.. Code:
<script type="text/javascript"
src="http://developer.apple.com/internet/webcontent/examples/detectallplugins.shtml "></script>
<script>
if (detectQuickTime == true) {
setTimeout('Redirect()',0);
}
else
{
setTimeout('Redirect2()',0);
}
function Redirect()
{
location.href = 'http://www.mysite.com/player.htm';
}
function Redirect2()
{
location.href = 'http://www.mysite.com/error-install-quicktime.htm';
}
</script>
But i cant make it work. Can anyone help? I want to detect the double-press of the space key. However, I want a single press of a space key to have a different function. The double-tap of space should only count if the taps of space are no more than, say, a half second apart. For example: The user hits space once, and javascript begins performing one action. 1/3rd of a second later, they hit the space bar again, and since that is within our threshold of 1/2 of a second, the action that began because the user hit the spacebar once should be cancelled, or undone (which I can write later) and the action when the user hits the spacebar twice should begin. Anyone have an idea how to do this? Thanks! Hi, Wondering if anyone can help me out with some javascript. How do I check upon clicking a random object on the page that the object onmousedown is an image or not? Any help is much appreciated. -cantonboi My credit card processing service will only accept English characters. I need to detect entries in the form that are using non English characters. Is there a way in Javascript to create a function to force a string to UTF-8? My idea is to do something like function forceUTF8(X){ Y = ???? X; return Y; } if ( stringA != forceUTF8(stringA) alert ("You must use English Characters"); I am trying to detect the parent URL on a page for a Facebook application so that if the user is on my site rather than accessing the application via Facebook they will be redirected to the FB App page. In PHP I can use: if(strstr($parenturl,"mysite.com")){header("location:fbapp.com");exit;} Is it possible to do this in JS also? Because with FB Apps the URL is not always the same so instead of detecting a full URL I just want to search for my domain name within document.location.href to see if it exists and IF yes > Redirect back to FB. Hi, I have do a calculation when an user enters the value in the textbox during onblur event. But during the onblur event I need to capture the tabkey (keyCode) and if it is 9 do the calculate else not do that. But the problem is we cannot detect a keyCode for tab in onblur. But for sure I need to use onblur in this case and cannot use onkeydown as this will have impact on the UI screen for this particular scenario. How to go about this? in the textbox I am calling onblur = "test()" Please provide a helping hand. Thanks. function doUnload() { if (window.event.clientX < 0 && window.event.clientY < 0) { alert("Window is closing..."); } } i get window.event undefined by using var evt =window.event? event : e i get e undefuned var evt =window.event? event : e if (evt.clientX < 0 && evt.clientY < 0) { alert(evt.clientX +"Window is closing..."); } I am new to Javascripting but am teaching myself and have written this script from my portfolio site in an effort to detect the users screen resolution so that my art is viewed properly. I have ran the code through a debugger and it has comback as "free of errors" but when I run the webpage on my local machine it does nothing, the page displays as if I had written nothing and due to my limited knowledge of Javascript I am at a loss and hoping for someone to say, "look you screwed this part up fix this and it's good to go"... I'm hoping. Thank You all in advance.. Here is the code Code: <script language="Javascript">
function detect(){
if(screen.width<1280||screen.height<720){
alert("This web page is best viewed with a screen resolution of 1280 by 720 or higher. Your current resolution is "+screen.width+" by "+screen.height+". If possible please change your resolution.")
}
else{
alert("Whoa, you have a high resolution. Nice Job!")
}
}
</script>
Is it possible to call a function when user clicks on an (x,y) point (or a small area). I can't place a new object and just set the "onclick" value, so is it possible to do it without that? Thanks for the help. Hi there. I'm considering using the script below to detect the screen resolution of the user and then call a specific CSS for that user. The main aim is so that I can design the website at a fixed width for a larger resolution (used by most people), but if the user has a 980px resoltion then they can be catered for as well. Code: <SCRIPT language="JavaScript">
<!--
if ((screen.width>=1024) && (screen.height>=768))
{
window.location="highres.html";
}
else
{
window.location="lowres.html";
}
//-->
</SCRIPT>
I don't want to use liquid layouts as I think it looks messy, and I don't want to design to a width of 960px as I don't like the blank space at the sides on larger resolutions. Is this an acceptable method, or do you think i'll run into problems? Any advice would be great. Cheers. Pat. Hello there, This seems to be a bit of a sore topic on the forums but at least I think I have good reason for wanting to do it - I've written a script that displays tooltips when your mouse hovers over a link - all this is fine, but when I click on the link and move to another page, then click the back button on the browser to go back, the tooltip for the link I clicked is still visible! It'd be great if there was a way of detecting the button had been pressed so that I can hide it... p.s. I tried onclick = "tooltips.hideToolTip(4); return true;" for the links but no joy... Many thanks Edd I have an input box and I want it to function so that when the user presses the enter/return key, it runs a js function. I have the following code: Code: input.onkeydown = function () {
if (event.keyCode === 13) {
// do something
}
}
This works in Safari, Opera, Chrome, and even IE, but not in firefox. Any idea how I could fix this? Thanks, Julian |
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