I'm trying to change the value of a text box within iframe.
I have tried using GetElementById in every way i could find and nothing seems to work.
I found a alternative to iframe by using the Object data tag but it has the same problem.
My code more or less, I changed it a bit for presentation:
<html>
<head>
<title>None</title>
</head>
<body>
<script type="text/javascript">
function changeValue() {
var textBox = document.getElementById('userName');
textBox = "hello!";
}
</script>
<iframe id="myFrame" src="http://www.website.com"></iframe>
<input type="button" onclick="changeValue()" value="Submit">
</body>
</html>
This is not possible for security reasons.
If you had access, you would be able to load, say facebook.com in an iframe on your website and extract user details with JavaScript.
Try something along the lines of
document
.getElementById('myFrame')
.contentWindow
.document
.getElementById('userName')
.value='hello';
As the others pointed out, this will only work if the page inside the iframe is on the same domain.
Related
Using this code, I am trying to get the href attribute of a link and make a new link of that attribute. Why my link does not work, I don't know. It shows something like this:
404 - The page cannot be found
Sorry, we cannot find the page.
It might have been removed, had its name changed, or is temporarily
unavailable.
Please check that the Web site address is spelled correctly.
Or go to our home page, and use the menus to navigate to a specific
section.
Here is my code:
<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
<script>
$(document).ready(function(){
$("button").click(function(){
text ="";
text +=$("#w3s").attr("href");
document.getElementById("demo").innerHTML="<a href=\'text\'>W3Schools.com</a>";
});
});
</script>
</head>
<body>
<p>W3Schools.com</p>
<button>Show href Value</button>
<p id="demo"></p>
</body>
</html>
If I use:
document.getElementById("demo").innerHTML = text;
It shows http://www.w3schools.com. Why doesn't the link go to this site?
If you're going to use jQuery to traverse and manipulate the DOM, use jQuery. If you're going to use vanilla javascript... do that. Just try not mix them! Makes things easier in the long run. Anyway, you could do something like this to set the href attribute;
$('#demo').attr('href', text);
or
document.getElementById('demo').href = text;
btw this
"<a href=\'text\'>W3Schools.com</a>"
Is totally not how you do string concatenation in javascript. Should be
'W3Schools.com'
I want to autofill textboxes on another website so I'm writing a short script to do this. I'm loading an iframe with a website in it and if this iframe is loaded, it should fill in the input text forms. So I wrote this in autofill.php:
<script src="http://code.jquery.com/jquery-1.10.2.min.js"></script>
<script src="fill.js"></script>
<iframe name="autofillframe" src="https://e-services.blum.com/main/" style="width:100%; height:100%;"></iframe>
And this I wrote in fill.js:
$(document).ready(function(e) {
$('#username').val('username');
$('#kennwort').val('password');
});
Here is a fiddle
If I do it with a .php file instead of a website, it works fine.
Here's a demo without website
Can someone give me a hint?
When you load a page from a different domain into an iframe, you can't do anything to the iframe page from JavaScript in your page.
As far as the browser is concerned, the iframe is a separate window and you have no access to it. Imagine that the user had a banking page open in one window and your page open in another window. You know that the browser would not let your JavaScript code interfere with the banking page, right?
The same thing applies when the other page is in an iframe. It's still a completely separate browser window, it's just positioned so it looks like it's inside your page.
In your working example, the code works because the username and password fields are not in an iframe from a different domain. They are part of the same page that the JavaScript code is in.
If the iframe is loaded from the same domain as your main page, then you can do anything you want to it, including filling in form fields. The code would be slightly different because you need to access the iframe document instead of the main page document, but that's easy. But if the iframe is from a different domain, you are out of luck.
By pressing submit button , input value copies from input textbox to iframe textbox (or opposit of it).
you can implement it like:
test1.html
<!doctype html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script>
$(document).ready(function(){
$('#submit').click(function(){
var iframe = document.getElementById('myiframe');
var doc = iframe.contentDocument || iframe.contentWindow.document;
var elem = document.getElementById('username');
doc.getElementsByName('user')[0].value = elem.value;
});
});
</script>
</head>
<body>
<input type="text" id="username">
<input type="submit" id="submit">
<iframe id="myiframe" frameborder="1" src="test2.html"></iframe>
</body>
</html>
And test2.html :
<!DOCTYPE html>
<html>
<body>
<input type="text" name="user" id="user">
</body>
</html>
I have an iframe on a page that allows us to upload an image, once it's uploaded it displays the url of the file in a text input field.
On the main part of the page, we have our textarea where we write up our news posts. I'd like a way so that I can add a link on the iframe, next to the url field, that when clicked will automatically insert the text in there into the textarea on the main part of the page.
I'm relatively new to javascript, so I wasn't sure how to do this when using an iframe.
Thanks!
Main.htm
<html>
<head>
<script>
getText = function(s)
{
alert(s);
}
</script>
</head>
<body>
<iframe src="otherFrame.htm"></iframe>
</body>
</html>
otherFrame.htm
<html>
<head>
<script>
botherParent = function()
{
parent.getText(document.getElementById("textInput").value);
};
window.onload = function()
{
}
</script>
</head>
<body>
<input type="text" id="textInput" />
<span onclick="botherParent()">Stuff goes here</span>
</body>
</html>
Basically, in the child inline frame, use parent to access the parent's window object.
Global variables are stored in window, as are global functions. Because of this, if you define a global variable "foo" in parent, you can access it with parent.foo with your child frame.
Hope that helps!
Assuming I understand this correctly you want to be able to use javascript to access information in an iFrame from the container page. This is generally regarded as Cross Site Scripting and is not allowed.
I though this would be simple enough but I can't find the answer. I need to know how I can access an iframe's name from within said iframe. I was trying something like this but it's not working.
<iframe name="thename">
<script type="text/javascript">
alert(parent.name);
</script>
</iframe>
There is a combination of answers I prefer:
// window.frameElement Gets IFrame element which document inside
window.frameElement.getAttribute("Name");
It works on IE7+, Mozilla & Chrome
You were nearly right. Setting the name attribute on a frame or iframe sets the name property of the frame's global window object to that string. (Not parent, which refers to the window of the document that owns the frame.)
So unless some other script has deliberately changed the name, it's as simple as:
1.html:
<iframe name="tim" href="2.html"></iframe>
2.html:
<script type="text/javascript">
alert(window.name); // tim
</script>
in some cases window.frameElement returns null in iframe, so i figured workaround for it.
1. you need to set hash in src url of iframe
<iframe name="tim" href="2.html#your-hash"></iframe>
2. in iframe you can get this hash with
<script type="text/javascript">
var hash = window.location.hash;
</script>
Well, an IFRAME element shouldn't contain anything, it's targeting another document. So using a SCRIPT tag inside an IFRAME doesn't make alot of sense. Instead, use the SCRIPT inside the called document, e.g.
iframe_caller.html:
<html>
<body>
<iframe id="theIframe" name="theIframe" src="iframe_doc.html"></iframe>
</body>
</html>
iframe_doc.html:
<html>
<body>
<script type="text/javascript">
var iframes= parent.document.getElementsByTagName("iframe");
document.write(iframes[0].getAttribute("id"));
</script>
</body>
</html>
Note I'm using parent.document.function() there.
Something like this should work:
parent.document.getElementById('idhere').name;
You have to use the parent and then get the element either byId, Name, etc... then access the name property.
So your code should be like:
<iframe name="thename">
<script type="text/javascript">
var iframeName = parent.document.getElementById('idhere').name;
</script>
</iframe>
I have the following code in my page
<html>
<head>
<title>testpage</title>
<script language = 'javascript'>function fchange(){alert(document.getElementById("ifrm").value);</script>
</head>
<body>
<iframe id = 'ifrm' src = 'http://www.google.com' width = '700' height='500'></iframe><input type='button' onclick = 'fchange()' value = 'clickhere'>
</body>
</html>
From this I click the button and an alert box dispalys undefined. But I need the content or the source of the page ('http://www.google.com'). Please help me to do this.
Thanks in advance...
You can't do this, as it breaks the same-origin policy.
If both pages are on the same domain then you can with do what #Joel suggests, or the slightly more old fashioned:
window.frames['ifrm'].document.body.innerHTML;
You'll need <iframe name="ifrm" ...> for this to work.
If you want the source of the iframe, you would need to access the document object of the iframe.
function fchange()
{
alert(document.getElementById("ifrm").contentWindow.document.body.innerHTML);
}
As mentioned by others, you cannot get the source of an iframe which points to a page outside your domain.
You need to have back-end script for that. I think that's the only way. AJAX would not allow to make a request to other domains for security reasons.