I'm kinda new to web development. I'm trying to copy text from a iframe into a textarea on a Bootstrap-html webpage.
An example of my code is here: https://jsfiddle.net/fe5ahoyw/
JavaScript
I have tried:
var a = document.getElementById('LD1');
var b = document.getElementById('OD1');
if (a != null)
{
b.value = a.value;
}
I have also tried:
var a = document.getElementById('LD1').innerHTML;
var a = document.getElementById('LD1').value;
var a = document.getElementById('LD1').html;
Any help would be any help would be much appreciated
Frostie
The JSFiddle is currently trying to access a http resource. As JSFiddle itself is https, most browsers will not like this very much.
That said, the selectors you are using inside the code are ... off. You need to get the frame itself -> content of the frame -> element within the frame you are interested in. I'd suggest using something like:
var a = document.getElementById('OD1');
var iFrame = document.getElementById('LD1');
var iFrameDocument = iFrame.contentDocument || iFrame.contentWindow.document;
content = iFrameDocument.body.textContent;
alert(content);
if (content)
{
a.value = content.value;
}
Related
Basicly im trying to find certain text inside iframe, i get no errors in console, i have no clue what im doing wrong in here. Im trying to use indexOf because if Im not searching inside iframe it works good. I tried to addapt using this post here -> How to get the body's content of an iframe in Javascript? but keeps not working. Can someone give me and hand?
setTimeout(function() {
var iframe = document.getElementById('aspxcontent');
var iframeDocument = iframe.contentDocument || iframe.contentWindow.document;
var iframeContent = iframeDocument.getElementById('DialogMainBody');
[].slice.call(document.querySelectorAll('pre'), 0).forEach(function(aEl) {
if (aEl[iframeContent].indexOf('update') > -1) {
console.log("found");
}else{
console.log("not found");
}
});
}, 5000);
edit 1
var x = document.getElementsByTagName("iframe")[0].contentWindow;
//x = window.frames[0];
x.document.getElementsByTagName("body")[0].style.backgroundColor = "blue";
// this would turn the 1st iframe in document blue.
I already can get the content of an Iframe with jQuery, though I would like to learn how to get it with pure JavaScript.
This is what I have so far.
var frame = document.getElementById('awc_frame');
var easyBB = frame.contentWindow.document.body.innerHTML;
easyBB.getElementById('chatbox-title').innerText="Chatbox";
What am I doing wrong, please help. Also originally the frame does not have an ID, and I already tried this
var frame = document.frames['awc_frame'];
Is that cross browser efficient? And then how do I get the contentWindow? Just some explanation so I can do this with JavaScript and not jQuery. jQuery version is this
var frame = $('#avacweb_chat iframe');
var easyBB = $('#chatbox-title',frame.contents()).text('Chatbox');
If it is on the same domain, try this. It won't let you access iframe contents if the iframe is of a different origin than the window that you are viewing.
var iframe = document.getElementById("awc_frame");
var iframe_contents = iframe.contentDocument.body.innerHTML;
Working example with jsfiddle iframe viewing a page on the same domain:
http://jsfiddle.net/tqAL3/1/
The same answer as Nile but as a function more similar to the querySelector
// iframe-query-selectors.js v1
function iframeQuerySelector(iframe, selector, all){
if( iframe && (iframe.nodeName || iframe.tagName) === 'IFRAME' && iframe.nodeType === 1){
all = all ? 'All' : '';
if(selector){
return iframe.contentDocument['querySelector' + all](selector);
};
return iframe.contentDocument;
};
throw new Error('The element must be an iframe.');
};
function iframeQuerySelectorAll(iframe, selector){
return iframeQuerySelector(iframe, selector, true);
};
Basically, im making a javascript to refresh a page and it will find the price and buy the item when it goes up for the price desired.
I got it to work without the iframe, but I need to to work in the iframe, which is the problem ive reached.
If you went to this page: [ http://m.roblox.com/items/100933289/privatesales ]
and ran this code:
alert(document.getElementsByClassName('currency-robux')[0].innerHTML);
You would get an alert for the lowest price. In the code, this doesnt work (Hence, my problem.)
Try running the code below on this page to get it to work [ http://www.roblox.com/Junk-Bot-item?id=100933289 ]
var filePath = document.URL;
var itemid = filePath.slice(((filePath.search("="))+1));
var mobileRoot = 'http://m.roblox.com/items/';
var mobileEnd = '/privatesales';
var mobileFilePath = mobileRoot+itemid+mobileEnd;
var iframe2 = '<iframe id="frame" width="100%" height="1" scrolling="yes"></iframe>';
document.write(iframe2);
var iframe = parent.document.getElementById("frame");
iframe.height = 300;
iframe.width = 500;
iframe.src = mobileFilePath;
var price;
var snipe = false;
var lp = Number(prompt("Snipe Price?"));
document.title = "Sniping";
function takeOutCommas(s){
var str = s;
while ((str.indexOf(",")) !== -1){
str = str.replace(",","");
}
return str;
}
function load() {
if (snipe == false) {
tgs = iframe.contentDocument.getElementsByClassName('currency-robux');
price = Number((takeOutCommas(tgs[0].innerHTML)));
alert(price);
}
}
iframe.onload = load;
You might try having both pages — the one from "m.roblox.com" and the one from "www.roblox.com" — add the following up at the top of the head:
<script>
document.domain = "roblox.com";
</script>
Code from the different domains won't be allowed to look at each others page contents, but if you set the domains to the same suffix then it should work.
If you can't get it to work by sharing the same document.domain="roblox.com" code then you can try posting messages to the iframe.
Put this inside the iframe page:
window.addEventListener('message',function(e) {
});
In the parent page execute this to pass a message (can be a string or object, anything really) to the iframe:
document.getElementById("frame").contentWindow.postMessage({ "json_example": true }, "*");
Put this in the parent to listen for the message:
window.addEventListener("message", messageReceived, false);
function messageReceived(e) {
}
From inside the iframe posting a message back out:
window.parent.postMessage('Hello Parent Page','*');
I need your help about rangy library .
How can I apply rangy within iframe selected content, i cant to understand ((
this code in my page create red bold selection with ALL iframe content, but I need to apply it to only user selection
var cssApplier;
$("#ok_button").click(function()
{
var iframe = document.getElementById("iframe_id");
var iframeDoc = iframe.contentDocument || iframe.contentWindow.document;
var range = rangy.createRange(iframeDoc);
cssApplier.applyToRange(range);
});
$("iframe#iframe_id").load(function()
{
rangy.init();
cssApplier = rangy.createCssClassApplier("boldRed", {normalize: true});
});
You need to get the selection from the iframe. Here's how:
var cssApplier;
$("#ok_button").click(function()
{
var iframe = document.getElementById("iframe_id");
var iframeWin = rangy.dom.getIframeWindow(iframe);
cssApplier.applyToSelection(iframeWin);
// In Rangy 1.3, you can pass the iframe object directly into
// applyToSelection so the previous two lines become:
// cssApplier.applyToSelection(iframe);
});
$("iframe#iframe_id").load(function()
{
rangy.init();
cssApplier = rangy.createCssClassApplier("boldRed", {normalize: true});
});
How do you load a URL from a text box into iframe in a HTML file via javascript?
var oIFrame = document.getElementById("id_of_iframe");
oIFrame.src = document.getElementById("id_of_textbox").value;
Or with document.frames if its the only iframe you are using:
var myIframe = window.document.frames[0]; // lets grab the iframe object
if (myIframe != null){
myIframe.src = document.getElementById("id_of_textbox").value; // set the value as source.
}
Just to add I guess, via jQuery
$('iframe#guid').src( $('#textbox_id').val() );
with error checking:
var iframe = $('#guid');
if(iframe.length > 0){
iframe.attr('src', $('#textbox_id').val());
}