I'm sure this is pretty basic, but I can't seem to get any of the solutions I've found to work for me. Basically, I need to get the contents of a div from an iframe, and write them to a div in the parent page. This is what I have:
<iframe src="slideshows/slideshow/case2.html" frameborder=0 scrolling="no"
id="frame1" name="frame1"></iframe>
<div id="caption">
<script type="text/javascript">
var caption = frame1.document.getElementById('slidecaption');
document.write(caption);
</script>
</div>
'slidecaption' is the name of Id in the iframe that I'm trying to grab.
All I get is "null". Is it because the iframe contents haven't loaded yet? If so, how do I delay until the iframe has loaded?
Thanks,
Scott
Thanks to both of you for your help. I figured it out, based on Márcio's idea:
I put the function in the parent page:
<script type="text/javascript">
function send() {
document.getElementById('slidecaption').innerHTML =
frame1.document.getElementById('slidecaption').innerHTML}
</script>
And I put the call in the iframe document:
<body onload="parent.send();">
Regards,
Scott
I'm not sure this is the only thing you need to do, but you certainly need to retrieve frame1 from the dom.
<script type="text/javascript">
var frame1 = document.getElementById('frame1');
var caption = frame1.contentWindow.document.getElementById('slidecaption');
document.write(caption);
</script>
Related
I'm new to JavaScript and I cannot understand why my html isn't changing?
I have an Iframe and I'm trying to change the .innerHTML of the span class that the Iframe has created in the DOM.
In the DOM structure, the class is called <span class="weather-location">China</span>
I'm just trying to access this by changing it's innerHTML to Taiwan instead.
here is my code:
<html>
<head>
<title>test</title>
</head>
<body onload="myFunction()">
<iframe class="weather" width="100%" height="600px" frameBorder="0"
src="(this is my iframe src code)></iframe>
<script type="text/javascript">
function myFunction() {
document.getElementsByClassName("weather-location")[0].innerHTML = "Taiwan";
}
</script>
</body>
</html>
When I test it in the console log, it brings up that weather-location as [] but whats also bizarre is when I use the selector tool to hover on that weather-location class and go back and re-type in the code it in the console, it changes the class how I wanted?
Also, I don't know if this helps but when it shows up as [] in chrome a little i box pops up saying "value below was evaluated just now".
You can't change the innerHTML of iframes if it's on another domain.
https://developer.mozilla.org/en/docs/Web/HTML/Element/iframe
This kind of iframe is like a window into another webpage you have no control over.
If it is on the same domain you can use something like
var ifr = document.getElementById( yourIframeId );
var ifrDoc = ifr.contentDocument || ifr.contentWindow.document;
var theForm = ifrDoc.getElementById( yourFormId );
SO Question: accessing a form that is in an iframe
Credit to : #le_m
i have a html file with iframe and button in it, Is there a way to add a javascript function inside the body of iframe after I click the button?. Here is my code. Thanks
<html>
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js"></script>
<script>
function callMe() {
var frame = $('iframe'),
contents = frame.contents(),
body = contents.find('body');
var script2 = document.createElement("script");
script2.type = "text/javascript";
script2.text = " function setEmployeeId(){var employeeId = 0;};"
$(body).append(script2);
};
</script>
<title>sample</title>
</head>
<body>
<iframe src="page2.html">
</iframe>
<button onClick="callMe();">click</button>
</body>
</html>
The result I want is to be like this.
<html>
<head>
<title>sample</title>
</head>
<body>
<iframe>
<html>
<head>
<title></title>
</head>
<body>
<script>
function setemployeeId() {
var employeeId = 0;
};
</script>
</body>
</html>
</iframe>
</body>
</html>
Hopefully you can clarify a few things for me as we go, but I think I have some bad news for you.
Any content that is loaded in an iframe cannot truly edited unless you own the page that is being loaded, in that case you can just bake in whatever you need into the loaded page.
HOWEVER!
You can still access elements in the iframe by using the contentWindow attribute. That is all laid out for you here: How to pick element inside iframe using document.getElementById
Once you've got the element you want to work with, you can create a function in the parent window and then add a call to the parent window's function using window.parent. That's outlined here: Calling a parent window function from an iframe
So if you wanted to make a button in an iframe alter the contents of the iframe you could use
var elem = document.getElementById('myframe1').contentWindow.document.getElementById('myButton')
and then create a function in your parent window
function changeIt(){
document.getElementById('thingToChangeInIframe_ItsIDintheIframe').property = 'value';
}
and append it to the button with the code
elem.setAttribute('onclick', 'changeIt();');
If you have any clarifications to what you need just comment and we'll work those out. I'm sorry this doesn't use much jQuery but that's not really my forte, but I think the pure javascript is relatively self explanatory.
EDIT: I should clarify that if the iframe is on another domain then your options are pretty much all eliminated. For security reasons you can't mess with the settings on other people's pages when you load them in an iframe.
I have these codes:
<html>
<head>
<title>Iframe</title>
</head>
<body>
SomePage<br/>
AnotherPage<br/>
<iframe src="" name="content" height="40%" width="100%"></iframe>
</body>
</html>
as you can see I have two links and one iframe,What i need is when I click SomePage.html link, I want the parent window reloads and then the SomePage.html will be loaded in the iframe, is this possible?, Thanks!
EDITED:
I have an Auto-Resizing iframe that only grows on heights and cannot shrink to smaller heights (well that's my problem here, All I want to achieve is the MasterPage like behavior in asp.net.
This is possible, you can use localStorage it's not cross fully browser. Quick Example.
$(document).ready(function(){
if(localStorage.frameURL) {
$("iframe[name=content]").attr('src', localStorage.frameURL);
}
$("[target=content]").click(function() {
localStorage.frameURL = $(this).attr('href');
window.location.reload();
});
});
I would like access the IFrame element available in the main page from the IFrame source page using JavaScript
Here is my main Page
<html>
<body>
<IFrame id="page-container" src="http://stackoverflow.com"
width="200px" height="200px">
</IFrame>
</body>
</html>
Child Page
<html>
<head>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.8.3.js"/>
<script type="text/javascript" >
$(document).ready(function(){
var containerFrame= $('#page-container');
//var containerFrame=document.frames["page-container"];
//var containerFrame=document.frames["page-container"];
//var containerFrame=document.parent.frames["page-container"];
});
</script>
<body>
<div>some content..</div>
</body>
</html>
I am getting undefined for all my tries.
How it can be done? Is it possible?
Edit: I tried loading a cross domain page.
In IE i am getting error ' for security reason framing is not allowed' and also
domains, protocols and port must match. Can we achieve this any way?
var containerFrame = $('#page-container', window.parent.document)
This should firstly reference the parent of the window and then look for the iframe div
You need to specify the context to search for #page-container in, which in this case will be the parent window.
var containerFrame = $('#page-container', window.parent.document);
Good day to all.
I have this structure
<html>
<iframe>
<div id="idd">Some Content</div>
</iframe>
<script type="text/javascript">
function getIddContent()
{
//This is the part I ask about
}
var content = getIddContent();
</script>
</html>
I need to get the content of the div inside the content variable. Thank you for your time. If I use document.getElementById("idd").innerHTML it says that the div doesn't exist.
Use the following code
function getIddContent() {
return window.frames[0].document.getElementById('idd').innerHTML;
}
But you probably have to include the iframe contents via the src attribute on the iframe.