I have a simple page that has some iframe sections (to display RSS links). How can I apply the same CSS format from the main page to the page displayed in the iframe?
Edit: This does not work cross domain unless the appropriate CORS header is set.
There are two different things here: the style of the iframe block and the style of the page embedded in the iframe. You can set the style of the iframe block the usual way:
<iframe name="iframe1" id="iframe1" src="empty.htm"
frameborder="0" border="0" cellspacing="0"
style="border-style: none;width: 100%; height: 120px;"></iframe>
The style of the page embedded in the iframe must be either set by including it in the child page:
<link type="text/css" rel="Stylesheet" href="Style/simple.css" />
Or it can be loaded from the parent page with Javascript:
var cssLink = document.createElement("link");
cssLink.href = "style.css";
cssLink.rel = "stylesheet";
cssLink.type = "text/css";
frames['iframe1'].document.head.appendChild(cssLink);
I met this issue with Google Calendar. I wanted to style it on a darker background and change font.
Luckily, the URL from the embed code had no restriction on direct access, so by using PHP function file_get_contents it is possible to get the
entire content from the page. Instead of calling the Google URL, it is possible to call a php file located on your server, ex. google.php, which will contain the original content with modifications:
$content = file_get_contents('https://www.google.com/calendar/embed?src=%23contacts%40group.v.calendar.google.com&ctz=America/Montreal');
Adding the path to your stylesheet:
$content = str_replace('</head>','<link rel="stylesheet" href="http://www.yourwebsiteurl.com/google.css" /></head>', $content);
(This will place your stylesheet last just before the head end tag.)
Specify the base url form the original url in case css and js are called relatively:
$content = str_replace('</title>','</title><base href="https://www.google.com/calendar/" />', $content);
The final google.php file should look like this:
<?php
$content = file_get_contents('https://www.google.com/calendar/embed?src=%23contacts%40group.v.calendar.google.com&ctz=America/Montreal');
$content = str_replace('</title>','</title><base href="https://www.google.com/calendar/" />', $content);
$content = str_replace('</head>','<link rel="stylesheet" href="http://www.yourwebsiteurl.com/google.css" /></head>', $content);
echo $content;
Then you change the iframe embed code to:
<iframe src="http://www.yourwebsiteurl.com/google.php" style="border: 0" width="800" height="600" frameborder="0" scrolling="no"></iframe>
Good luck!
If the content of the iframe is not completely under your control or you want to access the content from different pages with different styles you could try manipulating it using JavaScript.
var frm = frames['frame'].document;
var otherhead = frm.getElementsByTagName("head")[0];
var link = frm.createElement("link");
link.setAttribute("rel", "stylesheet");
link.setAttribute("type", "text/css");
link.setAttribute("href", "style.css");
otherhead.appendChild(link);
Note that depending on what browser you use this might only work on pages served from the same domain.
var $head = $("#eFormIFrame").contents().find("head");
$head.append($("<link/>", {
rel: "stylesheet",
href: url,
type: "text/css"
}));
Here is how to apply CSS code directly without using <link> to load an extra stylesheet.
var head = jQuery("#iframe").contents().find("head");
var css = '<style type="text/css">' +
'#banner{display:none}; ' +
'</style>';
jQuery(head).append(css);
This hides the banner in the iframe page. Thank you for your suggestions!
If you control the page in the iframe, as hangy said, the easiest approach is to create a shared CSS file with common styles, then just link to it from your html pages.
Otherwise it is unlikely you will be able to dynamically change the style of a page from an external page in your iframe. This is because browsers have tightened the security on cross frame dom scripting due to possible misuse for spoofing and other hacks.
This tutorial may provide you with more information on scripting iframes in general. About cross frame scripting explains the security restrictions from the IE perspective.
An iframe is universally handled like a different HTML page by most browsers. If you want to apply the same stylesheet to the content of the iframe, just reference it from the pages used in there.
The above with a little change works:
var cssLink = document.createElement("link")
cssLink.href = "pFstylesEditor.css";
cssLink.rel = "stylesheet";
cssLink.type = "text/css";
//Instead of this
//frames['frame1'].document.body.appendChild(cssLink);
//Do this
var doc=document.getElementById("edit").contentWindow.document;
//If you are doing any dynamic writing do that first
doc.open();
doc.write(myData);
doc.close();
//Then append child
doc.body.appendChild(cssLink);
Works fine with ff3 and ie8 at least
The following worked for me.
var iframe = top.frames[name].document;
var css = '' +
'<style type="text/css">' +
'body{margin:0;padding:0;background:transparent}' +
'</style>';
iframe.open();
iframe.write(css);
iframe.close();
Expanding on the above jQuery solution to cope with any delays in loading the frame contents.
$('iframe').each(function(){
function injectCSS(){
$iframe.contents().find('head').append(
$('<link/>', { rel: 'stylesheet', href: 'iframe.css', type: 'text/css' })
);
}
var $iframe = $(this);
$iframe.on('load', injectCSS);
injectCSS();
});
use can try this:
$('iframe').load( function() {
$('iframe').contents().find("head")
.append($("<style type='text/css'> .my-class{display:none;} </style>"));
});
If you want to reuse CSS and JavaScript from the main page maybe you should consider replacing <IFRAME> with a Ajax loaded content. This is more SEO friendly now when search bots are able to execute JavaScript.
This is jQuery example that includes another html page into your document. This is much more SEO friendly than iframe. In order to be sure that the bots are not indexing the included page just add it to disallow in robots.txt
<html>
<header>
<script src="/js/jquery.js" type="text/javascript"></script>
</header>
<body>
<div id='include-from-outside'></div>
<script type='text/javascript'>
$('#include-from-outside').load('http://example.com/included.html');
</script>
</body>
</html>
You could also include jQuery directly from Google: http://code.google.com/apis/ajaxlibs/documentation/ - this means optional auto-inclusion of newer versions and some significant speed increase. Also, means that you have to trust them for delivering you just the jQuery ;)
My compact version:
<script type="text/javascript">
$(window).load(function () {
var frame = $('iframe').get(0);
if (frame != null) {
var frmHead = $(frame).contents().find('head');
if (frmHead != null) {
frmHead.append($('style, link[rel=stylesheet]').clone()); // clone existing css link
//frmHead.append($("<link/>", { rel: "stylesheet", href: "/styles/style.css", type: "text/css" })); // or create css link yourself
}
}
});
</script>
However, sometimes the iframe is not ready on window loaded, so there is a need of using a timer.
Ready-to-use code (with timer):
<script type="text/javascript">
var frameListener;
$(window).load(function () {
frameListener = setInterval("frameLoaded()", 50);
});
function frameLoaded() {
var frame = $('iframe').get(0);
if (frame != null) {
var frmHead = $(frame).contents().find('head');
if (frmHead != null) {
clearInterval(frameListener); // stop the listener
frmHead.append($('style, link[rel=stylesheet]').clone()); // clone existing css link
//frmHead.append($("<link/>", { rel: "stylesheet", href: "/styles/style.css", type: "text/css" })); // or create css link yourself
}
}
}
</script>
...and jQuery link:
<script src="https://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.9.1.min.js" type="text/javascript"></script>
As many answers are written for the same domains, I'll write how to do this in cross domains.
First, you need to know the Post Message API. We need a messenger to communicate between two windows.
Here's a messenger I created.
/**
* Creates a messenger between two windows
* which have two different domains
*/
class CrossMessenger {
/**
*
* #param {object} otherWindow - window object of the other
* #param {string} targetDomain - domain of the other window
* #param {object} eventHandlers - all the event names and handlers
*/
constructor(otherWindow, targetDomain, eventHandlers = {}) {
this.otherWindow = otherWindow;
this.targetDomain = targetDomain;
this.eventHandlers = eventHandlers;
window.addEventListener("message", (e) => this.receive.call(this, e));
}
post(event, data) {
try {
// data obj should have event name
var json = JSON.stringify({
event,
data
});
this.otherWindow.postMessage(json, this.targetDomain);
} catch (e) {}
}
receive(e) {
var json;
try {
json = JSON.parse(e.data ? e.data : "{}");
} catch (e) {
return;
}
var eventName = json.event,
data = json.data;
if (e.origin !== this.targetDomain)
return;
if (typeof this.eventHandlers[eventName] === "function")
this.eventHandlers[eventName](data);
}
}
Using this in two windows to communicate can solve your problem.
In the main windows,
var msger = new CrossMessenger(iframe.contentWindow, "https://iframe.s.domain");
var cssContent = Array.prototype.map.call(yourCSSElement.sheet.cssRules, css_text).join('\n');
msger.post("cssContent", {
css: cssContent
})
Then, receive the event from the Iframe.
In the Iframe:
var msger = new CrossMessenger(window.parent, "https://parent.window.domain", {
cssContent: (data) => {
var cssElem = document.createElement("style");
cssElem.innerHTML = data.css;
document.head.appendChild(cssElem);
}
})
See the Complete Javascript and Iframes tutorial for more details.
Other answers here seem to use jQuery and CSS links.
This code uses vanilla JavaScript. It creates a new <style> element. It sets the text content of that element to be a string containing the new CSS. And it appends that element directly to the iframe document's head.
var iframe = document.getElementById('the-iframe');
var style = document.createElement('style');
style.textContent =
'.some-class-name {' +
' some-style-name: some-value;' +
'}'
;
iframe.contentDocument.head.appendChild(style);
When you say "doc.open()" it means you can write whatever HTML tag inside the iframe, so you should write all the basic tags for the HTML page and if you want to have a CSS link in your iframe head just write an iframe with CSS link in it. I give you an example:
doc.open();
doc.write('<!DOCTYPE html><html><head><meta charset="utf-8"/><meta http-quiv="Content-Type" content="text/html; charset=utf-8"/><title>Print Frame</title><link rel="stylesheet" type="text/css" href="/css/print.css"/></head><body><table id="' + gridId + 'Printable' + '" class="print" >' + out + '</table></body></html>');
doc.close();
You will not be able to style the contents of the iframe this way. My suggestion would be to use serverside scripting (PHP, ASP, or a Perl script) or find an online service that will convert a feed to JavaScript code. The only other way to do it would be if you can do a serverside include.
Incase if you have access to iframe page and want a different CSS to apply on it only when you load it via iframe on your page, here I found a solution for these kind of things
this works even if iframe is loading a different domain
check about postMessage()
plan is, send the css to iframe as a message like
iframenode.postMessage('h2{color:red;}','*');
* is to send this message irrespective of what domain it is in iframe
and receive the message in iframe and add the received message(CSS) to that document head.
code to add in iframe page
window.addEventListener('message',function(e){
if(e.data == 'send_user_details')
document.head.appendChild('<style>'+e.data+'</style>');
});
I think the easiest way is to add another div, in the same place as the iframe, then
make its z-index bigger than the iframe container, so you can easly just style your own div. If you need to click on it, just use pointer-events:none on your own div, so the iframe would be working in case you need to click on it ;)
I hope It will help someone ;)
I found another solution to put the style in the main html like this
<style id="iframestyle">
html {
color: white;
background: black;
}
</style>
<style>
html {
color: initial;
background: initial;
}
iframe {
border: none;
}
</style>
and then in iframe do this (see the js onload)
<iframe onload="iframe.document.head.appendChild(ifstyle)" name="log" src="/upgrading.log"></iframe>
and in js
<script>
ifstyle = document.getElementById('iframestyle')
iframe = top.frames["log"];
</script>
It may not be the best solution, and it certainly can be improved, but it is another option if you want to keep a "style" tag in parent window
Here, There are two things inside the domain
iFrame Section
Page Loaded inside the iFrame
So you want to style those two sections as follows,
1. Style for the iFrame Section
It can style using CSS with that respected id or class name. You can just style it in your parent Style sheets also.
<style>
#my_iFrame{
height: 300px;
width: 100%;
position:absolute;
top:0;
left:0;
border: 1px black solid;
}
</style>
<iframe name='iframe1' id="my_iFrame" src="#" cellspacing="0"></iframe>
2. Style the Page Loaded inside the iFrame
This Styles can be loaded from the parent page with the help of Javascript
var cssFile = document.createElement("link")
cssFile.rel = "stylesheet";
cssFile.type = "text/css";
cssFile.href = "iFramePage.css";
then set that CSS file to the respected iFrame section
//to Load in the Body Part
frames['my_iFrame'].document.body.appendChild(cssFile);
//to Load in the Head Part
frames['my_iFrame'].document.head.appendChild(cssFile);
Here, You can edit the Head Part of the Page inside the iFrame using this way also
var $iFrameHead = $("#my_iFrame").contents().find("head");
$iFrameHead.append(
$("<link/>",{
rel: "stylesheet",
href: urlPath,
type: "text/css" }
));
We can insert style tag into iframe.
<style type="text/css" id="cssID">
.className
{
background-color: red;
}
</style>
<iframe id="iFrameID"></iframe>
<script type="text/javascript">
$(function () {
$("#iFrameID").contents().find("head")[0].appendChild(cssID);
//Or $("#iFrameID").contents().find("head")[0].appendChild($('#cssID')[0]);
});
</script>
var link1 = document.createElement('link');
link1.type = 'text/css';
link1.rel = 'stylesheet';
link1.href = "../../assets/css/normalize.css";
window.frames['richTextField'].document.body.appendChild(link1);
This is how I'm doing in production. It's worth bearing in mind that if the iframe belongs to other website, it will trigger the CORS error and will not work.
var $iframe = document.querySelector(`iframe`);
var doc = $iframe.contentDocument;
var style = doc.createElement("style");
style.textContent = `*{display:none!important;}`;
doc.head.append(style);
In some cases you may also want to attach a load event to the iframe:
var $iframe = document.querySelector(`iframe`);
$iframe.addEventListener("load", function() {
var doc = $iframe.contentDocument;
var style = doc.createElement("style");
style.textContent = `*{display:none!important;}`;
doc.head.append(style);
});
There is a wonderful script that replaces a node with an iframe version of itself.
CodePen Demo
Usage Examples:
// Single node
var component = document.querySelector('.component');
var iframe = iframify(component);
// Collection of nodes
var components = document.querySelectorAll('.component');
var iframes = Array.prototype.map.call(components, function (component) {
return iframify(component, {});
});
// With options
var component = document.querySelector('.component');
var iframe = iframify(component, {
headExtra: '<style>.component { color: red; }</style>',
metaViewport: '<meta name="viewport" content="width=device-width">'
});
As an alternative, you can use CSS-in-JS technology, like below lib:
https://github.com/cssobj/cssobj
It can inject JS object as CSS to iframe, dynamically
This is just a concept, but don't implement this without security checks and filtering! Otherwise script could hack your site!
Answer: if you control target site, you can setup the receiver script like:
1) set the iframe link with style parameter, like:
http://your_site.com/target.php?color=red
(the last phrase is a{color:red} encoded by urlencode function.
2) set the receiver page target.php like this:
<head>
..........
$col = FILTER_VAR(SANITIZE_STRING, $_GET['color']);
<style>.xyz{color: <?php echo (in_array( $col, ['red','yellow','green'])? $col : "black") ;?> } </style>
..........
Well, I have followed these steps:
Div with a class to hold iframe
Add iframe to the div.
In CSS file,
divClass { width: 500px; height: 500px; }
divClass iframe { width: 100%; height: 100%; }
This works in IE 6. Should work in other browsers, do check!
Well, I'm trying to dart back and forth around the internet, in a fashion similar to this: http://jsfiddle.net/Muimi/gm7gv/. Unfortunately, my code doesn't work. What is happening is that the page isn't redirecting at all. I noticed that it gave me errors like 'page does not exist', for google.com (which exists, just so everyone knows). So, any ideas?
<!DOCTYPE html>
<html>
<head>
<style>
#showUrl {
border:2px solid #0A9;
height:90%;
width:95%;
}
#url {
width:30em;
}
</style>
<script type="text/javascript">
function loadUrl() {
var url = document.getElementById( 'url' ).value;
var showUrl = document.getElementById( 'showUrl' );
showUrl.src = url;
}
</script>
</head>
<body>
<form>
Enter URL to load: <input type="text" id="url" />
<input type="button" value="Load URL" onclick="loadUrl()" />
</form>
<iframe id="showUrl"></iframe>
</body>
</html>
Are you including 'http://'? If not, the iframe is trying to load a relative path instead of an absolute path.
function loadUrl() {
var url = document.getElementById( 'url' ).value,
showUrl = document.getElementById( 'showUrl' );
showUrl.src = /$https?:\/\//.test(url) ? url : 'http://'+url;
}
Your code does works. I tried it on JsBin and it did work with my website's URL but didn't with Google's
http://jsbin.com/akugeg/1/edit
There can be three reasons:
You need to add a protocol so it works as an absolute URL not a
relative one.
Most code debugging services doesn't allow to load iframes, as it itself uses iframe to display the content - for security reasons.
Some websites don't like to be loaded in iframes so they just configure their servers to not to load other inside an iframe on other than their own domain.
But I can assure you that the code works and if you try it on your localhost it might work.
I know there is at least 1 other post on SO dealing with this but the answer was never exactly laid out.
I am working in a WP child theme in the head.php document. I have added this in the head:
<link type="text/css" href="http://www.frontporchdeals.com/wordpress/wp-includes/js/jqueryui/css/ui-lightness/jquery-ui-1.8.12.custom.css" rel="Stylesheet" />
<?php
wp_enqueue_style('template-style',get_bloginfo('stylesheet_url'),'',version_cache(),'screen');
wp_enqueue_script('jquery-template',get_bloginfo('template_directory').'/js/jquery.template.js',array('jquery'),version_cache(), true);
wp_enqueue_style('jquery-style', 'http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/themes/smoothness/jquery-ui.css');
wp_enqueue_script('jq-ui', 'http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.2/jquery-ui.js ');
wp_enqueue_script('jq-ui-min', 'http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.12/jquery-ui.min.js' );
?>
and I added this in the body:
<script>
jQuery(function() {
$( "#dialog" ).dialog();
});
</script>
<div id="dialog" title="Basic dialog">
<p>This is the default dialog which is useful for displaying information. The dialog window can be moved, resized and closed with the 'x' icon.</p>
</div>
but no dice. My div shows as standard div.
Any ideas at all? I know that top stylesheet should be called with enqueue but that shouldn't stop this from working.
WordPress jQuery is called in no-conflict mode:
jQuery(document).ready(function($) {
$('#dialog' ).dialog();
});
Also jQuery UI is loading before jQuery. You're getting 2 javascript errors:
Uncaught ReferenceError: jQuery is not defined
103Uncaught TypeError: Property '$' of object [object DOMWindow] is not a function
The first error is from jQuery UI loading before jQuery and the second is because the $ is not recognized in no-conflict mode.
Remove any of the inline <script src= tags and the call to the custom.css in header php and add this function to your child theme functions.php file to load the scripts. WordPress will put them in the right order for you.
add_action( 'init', 'frontporch_enqueue_scripts' );
function frontporch_enqueue_scripts() {
if (!is_admin() ) {
wp_enqueue_script( 'jquery' );
wp_register_script( 'google-jquery-ui', 'http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.12/jquery-ui.min.js', array( 'jquery' ) );
wp_register_script( 'jquery-template', get_bloginfo('template_directory').'/js/jquery.template.js',array('jquery'),version_cache(), true);
wp_register_style( 'jquery-style', 'http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/themes/smoothness/jquery-ui.css', true);
wp_register_style( 'template-style', 'http://www.frontporchdeals.com/wordpress/wp-includes/js/jqueryui/css/ui-lightness/jquery-ui-1.8.12.custom.css', true);
wp_enqueue_style( 'jquery-style' );
wp_enqueue_style( ' jquery-template' );
wp_enqueue_script( 'google-jquery-ui' );
wp_enqueue_script( 'jquery-template' );
}
}
I'm building a custom plugin on WP admin to insert data on custom MySQL tables. For nearly a week I was trying to do a confirmation dialog for a delete item event on a Wordpress table. After I almost lost all my hair searching for an answer, it seemed too good and simple to be true. But worked. Follows the code.
EDIT: turns out that the wp standard jquery wasn't working properly, and the Google hosted jQuery included in another class was making the correct calls for the JS. When I removed the unregister/register added below, ALL the other dialog calls stopped working. I don't know why this happened, or the jQuery version included in this particular WP distribution, but when I returned to the old registrations, using Google hosted scripts as seen below, everything went back to normality.
On PHP (first, register and call the script):
add_action('admin_init', 'init_scripts_2');
function init_scripts_2(){
///deregister the WP included jQuery and style for the dialog and add the libs from Google
wp_deregister_script('jquery-ui');
wp_register_script('jquery-ui', 'http://ajax.googleapis.com/ajax/libs/jqueryui/1.10.2/jquery-ui.min.js');
wp_deregister_style('jquery-ui-pepper-grinder');
wp_register_style('jquery-ui-pepper-grinder', 'http://ajax.googleapis.com/ajax/libs/jqueryui/1.10.2/themes/pepper-grinder/jquery-ui.min.css');
wp_enqueue_script('jquery-ui'); ///call the recently added jquery
wp_enqueue_style('jquery-ui-pepper-grinder'); ///call the recently added style
wp_deregister_script('prevent_delete'); ///needed the deregister. why? don't know, but worked
///register again, localize and enqueue your script
wp_register_script('prevent_delete', WP_PLUGIN_URL . '/custom_plugin/js/prevent_delete.js', array('jquery-ui'));
wp_localize_script('prevent_delete', 'ajaxdelete', array('ajaxurl' => admin_url('admin-ajax.php')));
wp_enqueue_script('prevent_delete');
}
Next, if you're opening the dialog on a click event, like me, make sure you ALWAYS use class instead of id to identify the button or link later, on jQuery.
<a class="delete" href="?page=your_plugin&action=delete">Delete</a>
We also need to use a tag that holds the dialog text. I needed to set the style to hide the div.
<div id="dialog_id" style="display: none;">
Are you sure about this?
</div>
Finally, the jQuery.
/*jslint browser: true*/
/*global $, jQuery, alert*/
jQuery(document).ready(function ($) {
"use strict";
///on class click
$(".delete").click(function (e) {
e.preventDefault(); ///first, prevent the action
var targetUrl = $(this).attr("href"); ///the original delete call
///construct the dialog
$("#dialog_id").dialog({
autoOpen: false,
title: 'Confirmation',
modal: true,
buttons: {
"OK" : function () {
///if the user confirms, proceed with the original action
window.location.href = targetUrl;
},
"Cancel" : function () {
///otherwise, just close the dialog; the delete event was already interrupted
$(this).dialog("close");
}
}
});
///open the dialog window
$("#dialog_id").dialog("open");
});
});
EDIT: The call for the standard wp dialog style didn't work after all. The "pepper-grinder" style made the dialog appear correctly in the center of the window. I know the looks for the dialog are not very easy on the eye, but i needed the confirmation dialog and this worked just fine for me.
The dialog div is created AFTER when you're trying to act upon it. Instead, you should use:
$(document).ready(function() {
$( "#dialog" ).dialog();
});