How to apply css with jquery outside from iframe - javascript

I am using iframe popup and i want to change something outside of iframe with jquery from iframe ?
this need to be done with jquery.
code like this
<iframe> <div id="change">Change css</div> </iframe>
<div class="outer-div"> Text goes here </div>
<script>
$("#change").live('click', function(){
$('#outer-div').css('display','none');
});
<script>
i want to hide of outer div click on iframe inner div
thanks
Simranjeet singh

This is some code that has worked for me.
Assuming that the iFrame is within the same domain as it's parent, try this:
// -- Find the PARENT of the iFrame that this script runs in
var $topLevel = $(window.parent.document, window.parent.document);
If you then use $topLevel as a starting point for your jQuery it should work.
Be aware that this codes works alright in modern browsers but doesn't seem to operate in IE8 (and untested below IE8)

Related

How to change path / src inside the iframe dynamically?

As you can see if you run the code snippet.
You will see "openstreetmap" hyperlink.
If you click it. you will open a new document with a different URL path at the browser level.
I want to get this new "URL" / "path" / document inside the iframe tag.
I have been trying to find a solution in many places.
but it seems like an impossible mission!
can some brave guy, help me to do some magic in js / jquery.
I was trying with sandbox attribute to prevent top navigation.
but it feels like nothing is working.
Thanks!
<iframe
src="https://www.openstreetmap.org/export/embed.html?bbox=-0.004017949104309083%2C51.47612752641776%2C0.00030577182769775396%2C51.478569861898606&layer=mapnik">
</iframe>
The target of <a> should have the name of the <iframe>:
<p>Open map</p>
<iframe name="map"></iframe>
You can also use JavaScript:
document.querySelector('a').addEventListener('click', e => {
e.preventDefault();
document.querySelector('iframe').src = e.target.href;
});
<p>Open map</p>
<iframe></iframe>

Targeting an iframe with Js/jQuery BEFORE the DOM loads

In order to prevent an iframe from flashing, I'm setting its visibility inside a setTimeout (the CSS is set to visibility:hidden)
setTimeout(function(){
$n('#myFrame').css('visibility','visible');}, 750);
Works great, although when I load subsequent locations inside the frame, the flashing behavior returns since the visibility is already set.
What I'd like to do is create a function that targets the iframe BEFORE the DOM/page has loaded to set the visibility to hidden again and then setTimeout.
Keep in mind that this script will run on the ServiceNow platform, meaning some options are limited (can't load in document head, etc.)
It's sort of like a reverse document.ready(). Is this even possible?
Thanks for any leads,
Paco
Just set it in your source:
<iframe style="display: none;"></iframe>
Then un-hide it when you want to.
$('buttonToChangeTheIframePage').click(function(e){
e.preventDefault();
$('#myFrame').css('visibility','hidden');
$('#myFrame').delay(1000).css('visibility','visible');
});
This assumes you are loading locations from OUTSIDE the iframe - anything within the iframe (like a link) will still trigger this behaviour.
EDIT
This is actually better and will work for all circumstances (I think - just check no silly errors as not tested)
<iframe id="myFrame" src="http://www.google.com/" onLoad="hideUnhide();"></iframe>
function hideUnhide(){
$('#myFrame').css('visibility','hidden').delay(1000).css('visibility','visible');
}
Use addAfterPageLoadedEvent(func) in js_include_doc_type.js
<iframe id="gsft_main" style="visibility: hidden;">
anything ....
<script>
addAfterPageLoadedEvent(function() {
$j('#gsft_main').css('visibility','visible');
});
</script>
</iframe>

How to store iframe in a variable?

<html>
<body>
<iframe id="src">
</body>
</html>
I want to have the iframe show up in the div element through a Javascript function but I can't seem to figure out what isn't working. Any ideas?
document.getElementById('site').src = http://www.w3schools.com/;
Thanks in advance!
Try
document.getElementById('src').src = 'http://www.w3schools.com/';
a) the url should be provided as string (quoted)
b) the id of your iframe is src not site
Your iframe don't have the id site, so your code won't have any effect.
(Also please note that you didn't close the iframe tag) .
Here's the right code (fiddle) .
<input type="button" onclick="changeIframeSrc('myFrame');" value="changeSrc">
<iframe src="http://www.example.com" id="myFrame"></iframe>
<script>
function changeIframeSrc(id) {
e = document.getElementById(id);
e.src = "http://www.wikipedia.com/";
}
</script>
First, a couple small things:
the id on your iframe appears to be src and not site; and
you need to close the iframe tag.
Assuming that you're just dealing with one iframe and it has an id then by all means:
var myIframe = document.getElementById('src');
// gives you just that one iframe element
You may want to consider document.querySelectorAll though, in case you're working with more than one iframe.
var iframes = document.querySelectorAll('iframe');
See that in action: http://jsbin.com/equzey/2/edit
And important side note: if all you need is access to the iframe element (e.g., to manipulate its source or to apply CSS via the style attribute) then the above should be fine. However, if you need to work with the contents of the iframe, you'll need to get inside its web page context with the contentWindow property:
var iframes = document.querySelectorAll('iframe');
iframes[0].contentWindow;

How to add a click event to p elements in iframe (using jQuery)

How to add a click event to <p> elements in iframe (using jQuery)
<iframe frameborder="0" id="oframe" src="iframe.html" width="100%" name="oframe">
There's a special jQuery function that does that: .contents(). See the example for how it's works.
Your best best bet is to invoke the iframe AS LONG AS it's part of your domain.
iframe.html
<html>
<head>
<script>
window.MyMethod = function()
{
$('p').click();
}
</script>
</head>
<body></body>
</html>
And then use
document.getElementById('targetFrame').contentWindow.MyMethod();
To invoke that function.
another way is to access the iframe via window.frames.
<iframe name="myIframe" src="iframe.html"/>
and the javascript
child_frame = window.frames['myIframe'].document;
$('p',child_frame).click(function(){
alert('This click as bound via the parent frame')
});
That should work fine.
Wanted to add this, as a complete, copy-paste solution (works on Firefox and Chrome). Sometimes it is easy to miss to remember to call the event after the document, and so the iframe, is fully loaded:
$('#iframe').on('load', function() {
$('#iframe').contents().find('#div-in-iframe').click(function() {
// ...
});
});
The iframe must be on the same domain for this to work.
By giving a reference to the IFrame document as the second parameter to jQuery, which is the context:
jQuery("p", document.frames["oframe"].document).click(...);
To access any element from within an iframe, a simple JavaScript approach is as follows:
var iframe = document.getElementById("iframe");
var iframeDoc = iframe.contentDocument || iframe.contentWindow;
// Get HTML element
var iframeHtml = iframeDoc.getElementsByTagName("html")[0];
Now you can select any element using this html element
iframeHtml.getElementById("someElement");
Now, you can bind any event you want to this element. Hope this helps. Sorry for incorrect English.

Javascript problem with iframe that's hidden before loaded

I have a page that contains an iframe that gets loaded using Javascript:
index.html
<iframe id="myFrame" width="800" height="600" style="display: none;"></iframe>
<div id="loader"><!-- some loading indicator --></div>
<script type="text/javascript">
function someFunction() {
var myFrame = document.getElementById('myFrame');
var loader = document.getElementById('loader');
loader.style.display = 'block';
myFrame.src = 'myFrame.html';
myFrame.onload = function() {
myFrame.style.display = 'block';
loader.style.display = 'none';
};
}
</script>
The page that gets loaded in the iframe contains some Javascript logic which calculates the sizes of certain elements for the purposes of adding a JS driven scrollbar (jScrollPane + jQuery Dimensions).
myFrame.html
<div id="scrollingElement" style="overflow: auto;">
<div id="several"></div>
<div id="child"></div>
<div id="elements"></div>
</div>
<script type="text/javascript">
$(document).load(function() {
$('#scrollingElement').jScrollPane();
});
</script>
This works in Chrome (and probably other Webkit browsers), but fails in Firefox and IE because at the time jScrollPane gets called, all the elements are still invisble and jQuery Dimensions is unable to determine any element's dimensions.
Is there a way to make sure my iframe is visible before $(document).ready(...) gets called? Other than using setTimeout to delay jScrollPane, which is something I definitely want to avoid.
Some browsers assume that when "display:none" is applied to replaced elements (like Flash or an iframe) the visual info for that element is no longer needed. So, if the element is later displayed by the CSS, the browser will actually recreate the visual data form scratch.
I imagine that having the iframe default to "display:none;" makes the browser skip the rendering of the HTML so the tags don't have any dimensions. I would set the visibility to "hidden" or position it off the page rather than use "display:none;".
Good luck.
instead of making the iframe invisible by using display:none, you could try to...
... set visibility:hidden
... set position:absolute; top:-600px;
... set opacity:0
or something else that makes jQuery "see" the objects but not the user (and reset the used css-attributes in your myFrame.onload function).
visibility:collapse;
display:hidden;
height:0px;
Will work to get rid of white space too..
The iframe will also load..
Hidden iframes are a huge security issue. Probably best to try to find another way to accomplish what you want, if it is legitimate, because hopefully future browsers will get rid of this feature altogether. http://blog.opendns.com/2012/07/10/opendns-security-team-blackhole-exploit/

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