Problem: I have a asp.net button and on click of that I am displaying another window using window.open() at the client side using <script></script>
"I actually, need a popup (alert message) to be displayed on my parent page where my button is located once the user closes the child window."
Couple of things I tried are as follows:
I tried using setTimeOut() to have a time out for some milliseconds. This does not work as the control is not waiting until the time out is complete. It just proceeds to execute next set of code.
I tried using setInterval() but for some reason it is not working for me. Below is the code snippet of that:
$(document).ready(function () {
$('#<%=btnClick.ClientID%>').bind('click', function () {
var newWindow = window.open("http://www.google.com/", "google", 'resizable=1,width=900,height=800,scrollbars=1', '_blank');
newWindow.moveTo(0, 0);
var test = setInterval(function (e) {
if (newWindow.closed) {
alert("HEYY");
clearInterval(test);
__doPostBack("<%= btnClick.UniqueID %>", "");
}
else {
e.preventDefault();
}
}, 5000);
});
});
.
I also tried making an ajax call to open the new window and make it async : false, it again did not help me.
Bring your window and timer variable out of scope of the event handler. You need to do a polling i.e. periodically keep on checking if the windows has been closed. Using setInterval to do a polling will do the job.
var newWin, pollTimer;
$('#btnId').bind('click', function () {
newWin = window.open("...", "...", "");
pollTimer = window.setInterval(function() {
if (newWin.closed) {
window.clearInterval(pollTimer);
callCodeWhenPopupCloses();
}
}, 5000);
});
function callCodeWhenPopupCloses() {
alert("Popup closed.");
...
}
Related
I'm writing a script, and there are two boolean statements that are very similar but giving different results, and I don't see why they conflict with one another.
My function looks like this:
SCRIPT:
(function() {
window.onload = function() {
let stopped = true;
let button = document.getElementById("start-stop");
if (stopped) {
setInterval(function() {
console.log("The timer is working.");
}, 1000);
}
button.addEventListener('click', function(){
if (stopped) {
stopped = false;
console.log(stopped);
} else {
stopped = true;
console.log(stopped);
}
});
}
}
}).call(this);
The basic idea is that when I push the button the setInterval function stops, however it keeps on going even when the if/else function switches stopped to false.
For example, my console.log looks like this:
I.e. stopped = false, but setInterval doesn't terminate.
Why is this not evaluating correctly?
The problem with your code is that you are trying to work on a piece of code that has already started to operate. In simpler words, the setInterval method will be called every 1000ms, no matter what the value of stopped variable is. If you wish to really stop the log, you can do any of these:
clearInterval()
to completely remove the interval or
setInterval(function() {
if (stopped) {
console.log("The timer is working.");
}
}, 1000);
to check if the value of stopped variable has changed or not (after the click) and act accordingly. Choose either of these for your purpose..
you are calling setinterval even before button is clicked .As the event is already triggered you cannot stop just by setting the variable to false ,you need to clear the interval using clearinterval
check the following snippet
var intervalId;
window.onload = function() {
let stopped = true;
let button = document.getElementById("start-stop");
var Interval_id;
button.addEventListener('click', function() {
if (stopped) {
Interval_id = callTimeout();
stopped = false;
} else {
clearInterval(Interval_id);
stopped = true;
}
});
}
function callTimeout() {
intervalId = setInterval(function() {
console.log("The timer is working.");
}, 1000);
return intervalId;
}
<input type="button" id="start-stop" value="click it">
Hope it helps
Put the if(stopped) statement inside the setInterval function because if you used this function once it will keep going..
Another way to stop setInterval function is by using clearInterval, like this
var intervalId = setInterval(function() { /* code here */}, 1000)
// And whenever you want to stop it
clearInterval(intervalId);
When you click the button stopped variable becomes false but the setInterval will not stop because the setInterval code is already executed.. it will not execute again on button click. And if you reload the page what will happen is that stopped variable will be again set to true as you have written at first line and setInterval will execute again ..
Now What you can do is store setInterval in a variable like this
var timer = setInterval(function,1000);
and then when you click the button use this method to clear interval
clearInterval(timer);
this should do the trick .. Hope it helps ..
I have a setinterval that runes every 5 seconds. this works fine on page load.
I have the following scenarios:
Load page with interval (WORKS)
press button and load new content and stopp interval(WORKS)
Once the new content is no longer desiered, dissmiss it, return to first content and start interval again(DOES NOT WORK)
I have saftys suchs as events for window.blur that also stops the interval so that the browser does not commponsate for all the missing intervals if i would change tabs or something. Keep in mind that step 3 did not work BUT if i would after step 3 change a tab and then return to my original page(execute blur) the interval would start working again.
NOTE all content loading here exept page load is done with ajax calls.
My code:
initializing:
$.automation.worker.bindIntervalEvent("#TanksContent", "/Tank/GetTanks", function() {
$.automation.tanks.tableInit();
});
binding function:
bindIntervalEvent: function (target, url, callback) {
$(window)
.on("focus.mine",
function() {
$.automation.worker.setUpdateInterval(target, url, callback);
})
.on("blur",
function() {
$.automation.worker.stopUpdateInterval();
}).trigger("focus.mine");
}
interval function:
setUpdateInterval: function (target, url, callback) {
if ($.automation.globals.globalInterval.value.length === 0) {
$.automation.globals.globalInterval.value.push(window.setInterval(
function () {
var options = {
loadTarget: target
}
$.automation.worker.getView(url,
function() {
if (callback)
callback();
},
options);
},
5000));
}
}
the function that stops the interval:
stopUpdateInterval: function () {
if ($.automation.globals.globalInterval.value.length === 0)
return;
console.log("deleting");
for (var i = 0; i <= $.automation.globals.globalInterval.value.length; i++) {
window.clearInterval($.automation.globals.globalInterval.value[i])
$.automation.globals.globalInterval.value.splice(i, 1);
console.log($.automation.globals.globalInterval.value.length);
}
}
when stopping the interval i also remove the window bindings:
unBindIntervalEvent: function() {
$(window).off("focus.mine");
$(window).unbind("blur");
}
Back to step 3:
My sucess method in the callback to my getviewfunction is identical to what i execute in the beginning
code:
$(".updatelatest")
.on("click",
function () {
var _this = $(this);
var options = {
loadTarget:"#TanksContent"
}
$.automation.worker.getView("/Tank/GetTanks",
function (data) {
$(_this).switchClass("col-md-5", "col-md-1", 1000, function() {
$(_this).addClass("hidden");
$(".search").switchClass("col-md-5", "col-md-12", 1000, "easeInOutQuad");
})
$.automation.tanks.tableInit();
$.automation.worker.bindIntervalEvent("#TanksContent", "/Tank/GetTanks", function () {
$.automation.tanks.tableInit();
});
$(window).trigger("blur");
}, options);
});
but this does not start the interval. it is clearly initialized since it works when window.blur is executed for example when I change tab but for some reason this is not working beyond that.
i tried triggering the windows blur event and nothing happened, i tried triggering my custom window event "focuse.mine" but nothing happens.
I did not notice this while developing since I had firebug open and every time i checked scripts or css or the console the blur function was executed so I assumed that my code worked as intended but now that it is deployed I notice this.
My head is pounding beyond reason and I can't for figure out where I have gone wrong.
Well this was a fun one. I simply found that when calling the setUpdateInterval(); function directly it gave me the desiered result.
I realized that the reason I had them split like I did was becaouse of the blur event. "Focus.mine" is triggered to start the inteval again ocne a user comes back to the page.
I'm using NightwatchJS with NodeJS: http://nightwatchjs.org/api
I have a modal dialog, which may or may not appear. It has a #close_button that needs to be clicked (if the modal does appear) to continue.
I set the abortOnFailure parameter of waitForElementPresent to false so the script continues if the modal does not appear. However I can't get it to work.
Any suggestions?
module.exports = {
"Test" : function (browser) {
browser
.url("http://domain.com/")
.waitForElementPresent('#close_button', 5000, false, function() {
this.click('#close_button')
})
.setValue('#username', 'test#email.com')
//more code here
.end(); //does end() go here or inside .waitForElementPresent() above?
}
}
abortOnFailure works fine, however waitForElementPresent has a bug now in which the callback you passed it's not called in the correct context. That will be fixed.
In the mean time you can write your test like this, with placing the click outside, which is the same thing and looks cleaner:
module.exports = {
"Test" : function (browser) {
browser
.url("http://domain.com/")
.waitForElementPresent('#close_button', 5000, false)
.click('#close_button')
.setValue('#username', 'test#email.com')
//more code here
.end(); // end() goes here
}
}
I ran into something similar, I was waiting for an iframe to be present. I created a function to actually close it:
pageObject function:
Home.prototype.closeIframe = function(browser) {
var self = this;
console.log('Checking for iframe');
this.browser
.isVisible(iframeSelectors.iframe, function(result) {
if (result.value === true) {
self.browser
.log('iframe visible')
.frame(iframeSelectors.name)
.waitForElementVisible(iframeSelectors.closeLink)
.click(iframeSelectors.closeLink)
.assert.elementNotPresent(iframeSelectors.iframe)
.frame(null)
.pause(2000); //allow for proper frame switching
} else {
console.log('iframe is not visible');
}
});
return this;
In my test I wait for the page to fully load before executing the above function.
Why would my jquery/javascript be buggy?
(using foundation 4.3.2 with Jquery 1.10.2)
Firefox always gives a message to stop the script:
"A script on this page may be busy, or it may have stopped responding..."
Here is the function that gives the problems
function preparePlz() {
$('#plzform').on("submit", function (event) {
event.preventDefault();
var plzVal = $('#plz').val();
var regex = new RegExp("^([0-9]{5})$");
if (!regex.test(plzVal)) {
$('.errormessage').addClass("error");
if ($('.errormessage').hasClass("hide")) {
$('.errormessage').removeClass("hide");
}
$("#plz ").addClass("error");
}
else if(regex.test(plzVal)) {
$('.errormessage').addClass("hide");
$('.errormessage').removeClass("error");
$('#plz').removeClass("error");
$('#message').removeClass("hide");
var plzZone = plzVal.substring(0, 2);
$('#plzModal').foundation('reveal', 'open', {
url: 'http://vaeplan.com/kontact/zone',
data: {showtemplate: false, r: plzZone}
});
}
});
preparePlz();
}
$(document).ready(function () {
preparePlz();
});
You have infinite recursion. Think about it, what happens on document ready? preparePlz is called. What happens inside preparePlz? preparePlz is called. What happens inside preparePlz? preparePlz is called.
The last thing function preparePlz does is run itself:
preparePlz();
When the page loads preparePlz is run once, then goes into an infinite loop.
Change
});
preparePlz();
}
to
});
}
It seems that helloworld.js gets loaded multiple times based on the number of times I click #load. I say this because when I look at Google Chromes Developer Tools Network tab, it shows helloworld.js as many times as I click #load.
$(document).ready(function() {
$("#load").click(function(){
$.getScript('helloworld.js', function() {
hello();
});
});
});
The hello() function looks like this:
function hello(){
alert("hello");
}
Is it possible to detect if helloworld.js has already loaded?
So if it hasn't loaded, load it, and if it has loaded, don't load it.
This is what Developer Tools currently shows me if I click the #load button 4 times:
Set a flag when file loaded successfully. If flag is set then skip the file loading again.
Try this code,
var isLoaded = 0; //Set the flag OFF
$(document).ready(function() {
$("#load").click(function(){
if(isLoaded){ //If flag is ON then return false
alert("File already loaded");
return false;
}
$.getScript('helloworld.js', function() {
isLoaded = 1; //Turn ON the flag
hello();
});
});
});
So why not only fire the event once like this:
$("#load").one("click", function() {
$load = $(this);
$.getScript('helloworld.js', function() {
hello();
// bind hello to the click event of load for subsequent calls
$load.on('click', hello);
});
});
That would prevent subsequent loads and avoids the use of a global
Another option is letting .getScript() run but let it take the script from browser's cache so you won't have it reloaded each and every time.
To achieve this, add such code:
$.ajaxSetup({
cache: true
});
This is taken from the documentation page.
You could create a helper function:
var getScript = (function() {
var loadedFiles = {};
return function(filename, callback) {
if(loadedFiles[filename]) {
callback();
} else {
$.getScript(filename, function() {
loadedFiles[filename] = true;
callback();
});
}
};
})();