I'm trying to calculate time when user is out of current tab.
if user is changes tab for more than 3 times, page should navigate to another page. OR if user changes tab for more than 10 seconds, page should navigate to another page.
So far i got this only:
$(window).blur(function() {
alert("You are navigating to other tabs or window. this is your first warning. Doing this again may cancel your current examination.");
});
i need something like this:
if (user changes tab){
//display warning
}
if(user changes tab for more than 3 times){
//navigate to another page
}
if(user changes tab for more than 10 seconds){
//navigate to another page
}
Answer originally came from: https://stackoverflow.com/a/1760268/680578
His code snippet can be found here: http://jsfiddle.net/meehanman/40edh944/
You are able to keep track of active/inactive tabs using jQuery's focus and blur. You should be able to use a global variable to keep track of the amount of times the user did not have their focus on your tab. Displaying your warning at the first time, and your second warning after 3 times.
Whether it has been 10 seconds can be done using a setInterval countdown for example. Which you can clear as soon as your user comes back to your tab.
var counter = 0;
$(window).focus(function() {
//do something
});
$(window).blur(function() {
//do something
});
Related
I am building a survey in Qualtrics and use the method clickNextButton to automatically direct the participant to the next page with questions. I implemented the method in several following pages. Furthermore, participants are also able to click the next button themselves. The problem arises when they do so: if they click on the next button before the time limit, in the next page the method directs the participant earlier than given to the page after that one.
this.hideNextButton();
var that = this;
(function(){that.clickNextButton();}).delay(40);
For example, I set the time limit on 40 seconds on every page. On page 1, the participant manually clicks on the 'next button' after 10 seconds. What happens then is that on page 2, the participant is forwarded to page 3 after 28 seconds instead of 40. If he would have clicked on the 'next button' on page 1 after 5 seconds, he would have been forwarded on page 2 to page 3 after around 33 seconds. So it apparently depends on his click speed on page 1 when he will be directed on page 2. How can I prevent this?
Rather than using the timer for automatic redirection. call respective on click method when the question is answered so it will redirect to the respective page. and also reset the timer on every page redirection.
You need to clear the timeout if the respondent clicks the Next button themselves (delay is just a prototypejs implementation of setTimeout). Do it something like this:
Qualtrics.SurveyEngine.addOnReady(function() {
this.hideNextButton();
var that = this;
var timer = setTimeout(function() { that.clickNextButton(); },4000);
Qualtrics.SurveyEngine.addOnPageSubmit(function() { clearTimeout(timer); });
});
What I'm trying to accomplish is the following.
I have a link on my website, however I want to change that link after every 5 visits or "page refreshes" by the user and have this loop.
So for example you visit my site and the download button links to a site called "www.site1.com". You refresh my site 5 times and the download button link changes to "www.site2.com". If you refresh it for a 6th time it goes back to the original.
I have not been able to find anything searching through forums that shows what i'm trying to accomplish here. I was just experimenting with a window.onload and setInterval function that changes the link every 5 seconds. Anyway to easily transition this from every 5 seconds to every 5 page visits?
window.onload = function() {
function changeURL(){
document.getElementById("link").href = "www.site1.com";
}
setInterval(changeURL, 5000);
}
You probably want to use JavaScript localStorage or sessionStorage for this. Below is an example of your code using localStorage
Example
window.onload = function()
{
if (localStorage.visits)
{
//If the value is in local storage increase it's value
localStorage.visits = Number(localStorage.visits) + 1;
}
else
{
//If the value isn't in local storage set it to 0
localStorage.visits = 0;
}
//Check if the number of visits is greater than 5 and set the link accordingly
if(localStorage.visits > 5)
{
document.getElementById("link").href = "www.site2.com";
}
else
{
document.getElementById("link").href = "www.site1.com";
}
}
This will only work if their browser supports localStorage. One thing to note as well, the value will not reset if they close the browser page. If you want it to reset when the page is closed, that's what sessionStorage is for.
One more thing to note: The user can clear localStorage by clearing the browser data. If you wanted something that would be even more persistent I don't believe there's a JavaScript only solution (feel free to correct me if I'm wrong about this!)
I have an add-to-bag button used throughout our site and we want a dynamic popup to appear to acknowledge what was just added, and then it goes away. I'm finding that if you click another add button, it has the previous dialog's timeout attached. To fix this so the next dialog has its own 10,000 setTimeout rather than whatever is left over from the last one I have come up with the following code (that doesn't do the trick).
$(document).ready(function ()
{
// Create object for future dialog box - so it's available to the close method
var addToBagDialogVar = $('<div id="addToBagDialogBox"></div>');
var autoCloseTimeout = 10000;
var dialogTimer;
$(".addToBagPU").click(function (e)
{
var result = "";
$.get(this.href, function (data) { SetData(addToBagDialogVar, data); });
return false;
});
// Start listening for the close link click
$(document).on("click", "#bagPUCloseLink", function (event)
{
event.preventDefault();
CloseDialog(addToBagDialogVar);
});
function SetData(addToBagDialogVar, data)
{
result = data;
var regex = data.match("{{(.*)}}");
var bagCount = regex[1];
addToBagDialogVar.html(result).dialog({
open: function ()
{
clearTimeout(dialogTimer);
$(".ui-dialog-titlebar-close").hide();
SetBagCount(bagCount),
dialogTimer = setTimeout(function () { CloseDialog(addToBagDialogVar); }, autoCloseTimeout);
},
show: { effect: "fadeIn", duration: 800 },
close: function () { clearTimeout(dialogTimer); },
width: 320
});
}
function CloseDialog(closeThisDialog)
{
closeThisDialog.dialog("close");
closeThisDialog.dialog("destroy").remove();
}
});
The dialog is loaded with dynamic content from an external .Net page with product data and has a close link inside that page, which is why the dialog is loaded into addToBagDialogVar so it's available to CloseDialog.
All of that works just fine. It's just the reset of the timer that doesn't appear to be happening. If I go down a page of products and add each one to my bag, the 3rd or 4th dialog is only up for a second or so because they have all been using the first dialogs setTimeout.
I've read and read and tried too many different ways to remember and now my brain is mush.
I propose an alternate explanation for the behavior you're observing. When you click the first "add to cart", a timer is started. As you go down the page clicking "add to cart", a new timer is started each time. There's no overlap, just a bunch of separate timers running normally (although incidentally, each new dialog box blows away the timer ID you've previously created; I'll come back to this).
When your first dialog's timer expires, the dialog closes itself via the HTML ID, meaning it closes itself with something like a jquery $('div#addToBagDialogBox').closeOrSomethingLikeThat(), that is, every dialog inside a div with an id of addToBagDialogBox. The first timer expiration is closing all of your dialogs, because they all use that same HTML ID. The other timers are running perfectly, but when they expire there's nothing left for them to do.
You can fix the early-close problem by assigning a unique HTML ID to each dialog you create. And you'll want to manage your timer IDs on a per-dialog basis as well, such that each dialog has its own timer ID.
Edit: Just for nerdy grins, think about the details of the scenario you described. Your first timer is running, counting down normally, and you start four other timers while the first dialog is still there. The ID of the fifth timer is in your variable dialogTimer. So when the first dialog's timer expires, the close processing occurs, and you call clearTimeout with the ID of the fifth dialog's timer. So your first dialog's timer expired, the dialog closed all the other dialogs, and the cleanup cancelled the fifth timer. There are three other timers still running, their IDs lost forever. They finally expire and their shutdown functions run, but they're totally without effect, their companion dialogs long gone. Sorry, bona fide nerd here.
I have created one light box which pops up every time we hit the home page of the site but I want show it once when user hits home page instead of showing it every time we hit home page. How can I do this?
You can use localStorage or cookies for that. Test if the user has not visited your page yet (by getting the visited-key in this case) > open your lightbox and set the visited key then. Now each time the user opens your page the visited-key is not false and your lightbox will not be opened:
if( !window.localStorage.getItem("visited") ){
alert(true);
window.localStorage.setItem("visited", true);
}
http://fiddle.jshell.net/UsfAh/
As the questioner asked (in a comment) that's maybe a better solution for him:
window.onunload = function(){
window.localStorage.setItem("visited", true);
};
I have a problem, what i cant solve yet. I have a popup page with a menu, and tabs, and there is a settings tab. On settings tab, i save some item to localstorage, one of them is notification_time for a desktop notification.
Note: i have no options page!
My extension has this popup window and a background page, its function is to alert user with a desktop notification. I show notification in every 5,10,30 minutes, 1,2 hours etc. And this time should be chooseable on popup pages's options menu. The problem is, if 5 minutes is saved, and when i update to 10 minutes for example, than background.html is not updating himself! I rewrited code almost 20 times, but couldnt find solution. Heres a code sample,and a printscreen to get clear about my problem.
popup:
$("#save_settings").click(function(){
var bgp = chrome.extension.getBackgroundPage();
localStorage.setItem("notifynumber",$("#notifynumber").val());
if($("#notify").attr('checked')){
localStorage.setItem('chbox','true');
} else {
localStorage.setItem('chbox','false');
}
if($("#notif_time_select :selected").val()!="default"){
bgp.setTime(parseInt($("#notif_time_select :selected").val()));
}
if($("#org_select :selected").val()!="default"){
localStorage.setItem('org',$("#org_select :selected").val().replace(/%20/g," "));
}
});
Note: save_settings is a button, on the tab there is a checkbox (if checked then notifications are allowed, else diabled). There are two html select tags, one for choosing some data (org = organisation), and one, for selecting time. "#notif_time_select" is the html select tag, where i choose 5,10,30 minutes etc...
So, whenever i click save button, i save checkbox state to localstorage,and i call one function from background page, to save time.
:bgp.setTime(parseInt($("#notif_time_select :selected").val()));
background page:
for saving time i use function setTime:
var time = 300000; // default
function setTime(time){
this.time=time;
console.log("time set to: "+this.time);
}
after, i use setInterval to show notification periodically
setInterval(function(){
howmanyOnline("notify",function(data){
if(data>localStorage.getItem("notifynumber")){
if (!window.webkitNotifications) { // check browser support
alert('Sorry , your browser does not support desktop notifications.');
}
notifyUser(data); // create the notification
}
if(localStorage.getItem('tweet')=='true'){
if(data>localStorage.getItem("notifynumber")){
sendTweet(data,localStorage.getItem('org'),localStorage.getItem('ck'),localStorage.getItem('cs'),localStorage.getItem('at'),localStorage.getItem('ats'));
}
}
});
},time);
The code inside setInterval works fine, the only problem is,that
},time);
is not updating well. If i change settings to show notifications in every 10 minutes, it stays on 5 minute. The only way is to restart the whole extension. How could i update setInterval's frequency without restarting the whole extension? Thanks Jim
What if i save notif_time to localStorage too, and in background, i set up a listener, to listen for localStorage changes. Is there a way to listen for a particular localStorage item changes?!
Right now, setInterval only runs once, when your application loads. If you want intervals to fire at a new time interval, you should use clearInterval and then make a new call to setInterval.
// set a new time, wipe out the old interval, and set a new interval
function setTime(t) {
window.time = t;
clearInterval(notifInterval);
notifInterval = setInterval(makeNotification, time);
}
// set first interval
notifInterval = setInterval(makeNotification, time);
function makeNotification() {
// do what you need to make a notification
}
Here, notifInterval is a reference to the interval, returned by setInterval, that is used to clear it.
The source code in your question is not completed, but I guess you called setInterval() and then modified window.time in the background page.
Your window.time is not an object but a number value, and setInterval() can't "see" changes of window.time after invocation.
Try this:
function onTimeout() {
// do your notification.
setTimeout(onTimeout, time);
}
setTimeout(onTimeout, time);