Is there a way to run function when user leaves the specific website? Also how handle another tabs are in web browser opened with same URL? I completely don't know how to go about it. For example, I have two tabs with www.burito.com. I want to run function when last tab with www.burrito.com is closed. Thanks.
In html
<script>
function myUnLoad() {
}
</script>
<body onunload="myUnLoad()">
Are you looking for this? (using jQuery)
$( window ).unload(function() {
//your stuff
});
Related
I want to save some JavaScript code as a bookmark in chrome so it automatically opens my university login site and clicks on on the login button. I am completely inexperienced in JavaScript, so I have no clue how to do this. I snipped together the following code, which opens the correct website, but then does not click on anything. The first URL automatically puts me to the login site (third URL in the code) in case I have not logged in yet in this window.
(function() {
window.location.replace("https://lms.uzh.ch/auth/MyCoursesSite/0");
window.onload = function(){
if (current_url.startswith('https://lms.uzh.ch/auth/MyCoursesSite/0')) {
return;
}
if (current_url.startsWith('https://lms.uzh.ch/dmz/')) {
document.getElementById("wayf_submit_button").click();
}
};
})();
I'm sorry if this is too obvious a question and annoys any experts but as I said I am a complete beginner. I would of course add the "javascript:" at the beginning for chrome to understand the bookmark.
When you use window.location.replace, you change the address and you code can't work anymore.
I can suggest using some browser extension, your "click function" should work then.
I guess you could also try to make some simple html page with iframe, you call your "click function" at this page, but you target it to the iframe. After that you can change browser's location to the university's webpage as you should already be logged in.
<html>
<head>
</head>
<body>
<iframe src="your_university_address.com" id="some_id" onload="click_button()"></iframe>
<script>
function click_button()
{
my_iframe=document.getElementById('some_id');
my_iframe.contentDocument.getElementById('your_button_id').click();
}
</script>
</body>
</html>
Very simple but it should do that job.
(You can achieve similar result by using window.open() I guess)
I need to know when a specific iframe is created on a page.
The iframe is created with JS when the user presses a button, and can be created and destroyed many times.
UPDATED: The JS that creates the iframe is part of the original page so I cannot modify it or access its variables or functions, chrome extensions are sandboxed.
I don't have control over the contents of the iframe and cannot inject any JS in it.
I can only inject JS in the main page but have no other control on it otherwise.
(it's for a chrome extension and as far as I know it's only possible to inject JS code in the main page or iframes loaded with the page but not iframes created dynamically after the page has loaded)
For the moment I do this:
window.setInterval( function() {
$("iframe").each(function(){
if ($(this).attr('id')) {
if ($(this).attr('id') == "iframe_id") {
//my code
}
}
});
}, 1000);
but I would really like to avoid the setInterval because of performance issues.
Would this be possible at all somehow?
A. Wolff probably answered your question already ("The iframe is created with JS when the user presses a button" So you know when the iframe is created").
If you're still not sure what to do... well:
The interval is not a good idea - but you probably figured that out yourself. Try the on() method. That should help.
$( "iframe" ).on( "click", function() {
alert( "This is my iframe!" );
});
If you are having trouble selecting the content of the iframe, maybe you should try accessing elements like this:
$( "#iframe-id" ).contents().find( ".what-i-am-looking-for" ).hide();
The jQuery documentation will be extremely helpful if that is what you are looking for:
http://api.jquery.com/on/
http://api.jquery.com/contents/
Cheers!
Trying to open a link in a framed page and close the child window. The link bellow is in a child window and when I click it opens the link in the framed page, but did not close the child window
<a target="Resultado" href="?Tela=1"
onClick="javascript:return confirm('TryMe');window.close();">
I have used a code like this to close the window... but couldn't get it to work with the above code.
<a href="javascript:window.opener='Resultado';window.close();">
Try this:
<a target="Resultado" href="?Tela=1" onclick="clickHandler(event, this);">Link</a>
And declare this:
function clickHandler(e, el) {
var choice = confirm('TryMe');
if (!choice) {
e.preventDefault();
}
window.close();
}
I wasn't sure of your original use of window.close() since it came after the return and would never execute, so it's up to you to move it to where you want.
Create another webpage on your webserver & use that as the Custom URL thankyou page for your form.
In that new webpage have just one line of code.
<body onload="javascript:window.opener.childClosed();window.close();">
--
That code will call a javascript function in the parent window and then close the child popup; you can then use that javascript function to do a redirect on your parent page.
I am not to sure where the URL of your 'Thank you for requesting...' page is, but here is some javascript to redirect to google on your parent page after the form is submitted.
function childClosed() {
window.location = "http://www.google.com/"
}
You can put that script before your closing <body> tag.
--
Hopefully I have understood your query OK, let me know if you have any questions or need any clarification on this possible solution.
-
I have made a very basic clone of your webpage & form here if you want to test out the functionality, 'Factoring Question?' is the link that contains this code.
I need JavaScript code or HTML to make two websites open in two new browser tabs when clicking on one link. I do not want them to open in new windows, or on the current page that the link is on.
It probably won't work because the browser might consider it a popup and block it.
If the user allows popups you can do:
window.open(url, '_blank');
Like:
<a id="mydoublelink" href="http://site1.com" target="_blank">foo</a>
document.getElementById("mydoublelink").onclick=function(){
window.open('http://site2.com', '_blank');
}
If you call window.open in the onclick event you should be fine. Built-in popup blockers allow those. The kind of popups that get blocked come from other events or from scheduled events like a setTimeout.
document.getElement("my_link").onclick = function () {
window.open(/*..*/); // works
}
document.getElement("my_link").onclick = function () {
setTimeout(function () {
window.open(/*..*/); // will probably get blocked
});
}
This means, for instance, that if you open a popup after an AJAX call it will very likely get blocked. A workaround in this case is to open the popup right away and fill in the content later. This is outside the scope of this question but I feel like this is information that everyone should know.
Something like this?
<!DOCTYPE html>
<html>
<head>
<script>
function open_win()
{
window.open("URL");
open_win_two();
}
function open_win_two()
{
window.open("URL");
}
</script>
</head>
<body>
<a onclick="open_win()">luyfl</a>
</body>
</html>
Yu can try the new target _newtab:
blabla
It works in Firefox, don't know if it's supported in other browsers.
Morning All,
I was hoping someone could help or provide some sample code for me in refe to the following. I not too sure if i can simply set the asp.net (Visual Studio 2010) properties or if i need some java script to complete my task.
I have a web page with a link on it that when users click it opens to a new web page via the _Blank command.
What i would like to do is have this page open on a really small scale (640px X 480px) and layerd on top of the main webpage. This small page essentially just holds a gridview with items listed for documentation.
I have looked around the internet as i think this would be best done by using JavaScript in the smaller web page but i cant get this to work successfully.
I have found a sample and need to try and tweak this but have been unsuccessfull.
Here is the sample code i have....
<script type="text/javascript" language="javascript">
window.onload = function () {
var w = window.open("about:blank", "main", "width=640,height=480", true)
window.opener = "main";
window.open("", "_parent", "");
w.opener.close();
}
</script>
My smaller web page is named uploadview.aspx
Any help is advenace is much appriechiated.
Regards
Betty
You got to specify window URL in first param of window.open, and must have button to invoke that JavaScript, it's not clear why do you do that on page load event. Anyway, here is the example to open window on some link click
Open Upload View
<script type="text/javascript">
function OpenUploadView() {
window.open("uploadview.aspx?param=1", "_blank", "width=640,height=480", true);
}
</script>
You can also pass parameters to that aspx page like shown above.
You can use window.opendialog()
For more visit https://developer.mozilla.org/en/DOM/window.openDialog