This code loads correctly the spinner, but how do I hide it after loading completes?
iframe {
background-image: url("http://jimpunk.net/Loading/wp-content/uploads/loading2.gif");
background-repeat: no-repeat;
background-position: 50% 50%;
}
As an alternative solution, you can do this as well:
<div id="spinner">
<div>
<img src="http://www.ajaxload.info/images/exemples/25.gif" />
</div>
</div>
<iframe border=0 name=iframe src="http://www.w3schools.com" width="950" height="633" scrolling="no" noresize frameborder="0" onload="document.getElementById('spinner').style.display='none';"></iframe>
Style the position of the spinner absolute to the page container to center it appropriatedly
Try jQuery:
$( document ).ready(function() {
$( "iframe .load" ).hide();
});
and create a second css-class for the loading-action:
.load{
background-image: url("http://jimpunk.net/Loading/wp-content/uploads/loading2.gif");
background-repeat: no-repeat;
background-position: 50% 50%;
position: absolute;
width:100%;
height:100%;
}
iframe{
position:relative;
}
Let me know if it works.
Here it is, using font-awesome and jQuery:
$(document).ready(function () {
showSpinnerWhileIFrameLoads();
});
function showSpinnerWhileIFrameLoads() {
var iframe = $('iframe');
if (iframe.length) {
$(iframe).before('<div id=\'spinner\'><i class=\'fa fa-spinner fa-spin fa-3x fa-fw\'></i></div>');
$(iframe).on('load', function() {
document.getElementById('spinner').style.display='none';
});
}
}
You could listen to when the iframe is loaded, and then put a class on the iframe, setting background image to nothing.
iframe.onload = function() {
// remove spinner
};
Sorry for the short answer, but I'm on a phone atm :)
I just wanted to add that another way to do this without Javascript is to have the spinner appear behind the iframe, and give the iframe an initially transparent background; so long as the iframe's content has a background colour it will cover the spinner once it loads.
This is a great way to do this if your iframe is "single-use", i.e- it loads embedded content only once and contains no clickable links, or if you don't care about displaying the spinner once the initial content has loaded.*
There are two easy ways to do this:
CSS Background
HTML:
<div class="iframe_container">
<iframe src="http://example.org"></iframe>
</div>
CSS:
.iframe_container {
background-image: url('path/to/spinner.gif');
background-position: center;
background-repeat: no-repeat;
}
.iframe_container iframe {
background: transparent;
}
Basically the spinner is a background for .image_container, positioned in the center, and visible because the iframe's background is initially transparent. When the iframe content loads it covers the image, even if an error occurs.
Z-Index
HTML:
<div class="iframe_container">
<img class="spinner" src="path/to/spinner.gif" />
<iframe src="http://www.example.org"></iframe>
</div>
CSS:
.iframe_container {
position: relative;
}
.iframe_container .spinner {
position: absolute;
top: 50%;
left: 50%;
}
.iframe_container iframe {
background: transparent;
z-index: 1;
}
In this case we have our spinner embedded as a specific element (which you may need to do for Bootstrap spinners and such), which is positioned using CSS. The iframe in this case covers the image because it has been given a z-index (you may need to use a higher number, if other elements with z-indexes) but the trick is essentially the same.
Notes
As long as it doesn't bother you that the spinner is still technically in the background this works great for a single page-load iframe, or when you only care about the first load.
This is also a good trick to use if you want your site to support users with Javascript disabled, as they won't be left with a spinner that won't disappear.
*If you want to re-use a spinner via Javascript you can still do-so using the z-index option, by setting the spinner's z-index to be higher than the iframe's, like so:
var e = getElementById('my_iframe');
e.onload = function() {
var e = getElementById('my_spinner');
e.style.zIndex = 0;
}
e.onunload = function() {
var e = getElementById('my_spinner');
e.style.zIndex = 100;
}
This works by pushing the spinner above the iframe when unloading (source is changed) and behind it again on load (new content is visible).
You can use jquery on load
$('#showFrame').on("load", function () {
console.log('iframe loaded completely'); //replace with code to hide loader
});
================================================================
=========================2022 Answer==========================
Iframes have a onLoad attribute that you can set to a function
In react you could do something as such:
const spinner = async () => {
document.getElementById('spinner').style.display = 'none';
}
Rendered in a Modal as such:
<div
id="spinner"
style={{
backgroundColor: '#ECECFE',
borderRadius: '8px',
padding: '20px',
}}
>
<Loading
spinnerColor="#2E7DAF"
text="Loading...."
/>
</div>
<iframe id="iframeid" src="" width="650px" height="650px" onLoad={spinner} ></iframe>
</div >
Related
I've been searching on many posts but almost all of them are confusing.
I'm working with animate.css into a which is at the middle of my page.
For default the animation is played when the page is loaded, but i want that it play when i reach the (when i'm scrolling).
Please, don't say about JS Reveal, i'd like to use the animation from animate.css
What i was trying:
HTML
<!-- Others div above -->
<div class="row sf-medida" id="sf-medida" onscroll="Animar();">
<!-- Others div below -->
JS
function Animar() {
setTimeout(function(){
document.getElementById("sf-medida").style.visibility = "visible";
$("#titulo-general").addClass("animated fadeInLeft");
$(".sub-titulo").addClass("animated bounceInRight");
$(".titulo-izquierda").addClass("animated swing");
$(".texto-1").addClass("animated fadeIn");
$(".texto-2").addClass("animated fadeIn");
},1000)
}
But it doesn't work, however, i've tried adding
window.addEventListener("scroll", Animar);
But what it does is that the animation is played whenever i scroll on the page,
This can be very easily done using little jquery. All you need to do is listen to the scroll event, then check if user have scrolled to the target element. If the user did, then add animation class from your animate.css. Adjust your if condition according to your desires. Check the below code and fiddle https://jsfiddle.net/15z6x5ko/ for reference
$(document).ready(function(){
$(document).scroll(function(evt){
var v2 = Math.abs($('.box').position().top - $(window).height()/2);
var v1 = $(this).scrollTop();
if( v1 > v2 ){
console.log('in');
$('.box').addClass('animated flip')
}
});
});
So as per your request, let me try to explain the code line by line
$(document).ready(function(){
This is easy to understand. It just waits for browser to load all HTML & CSS first and when everything is loaded, the javascript code inside this function will run.
$(document).scroll(function(evt){
This is an event handler, our callback function will run whenever user scrolls on document. Remember change $(document) according whatever the parent is of your target element. So if your target div is inside another div whose class is .parent then use $('.parent').scroll . As for my code I am listening the event on document. When my document scrolls, my event will trigger.
var v1 = $(this).scrollTop();
This code will get the amount of scrolling user had done in pixels.
var v2 = Math.abs($('.box').position().top - $(window).height()/2);
This is a simple math that checks the position of my target div from its parent element subtracting the half of the size of window from it. This will return the pixel positing of your target div. So when user reaches this pixel positing while scrolling, your animation will start.
$('.box').addClass('animated flip')
Now this code simply adds the animation css classes into the target div as soon as user scrolls to the target div.
I'm using "WoW.js" for my scroll reveal library. It's pretty easy to use, like for real. One line of code
<div class="wow fadeIn">content</div>
Here, take a look: http://mynameismatthieu.com/WOW/docs.html
Here's an example using Jquery.
In it we use .scrollTop and .height to measure the videos container from the top of the page so that we know when it comes into view when scrolling. (it's actually set to load when it reaches 100px below the bottom of the viewable area, a sort of preload. you can adjust it to whatever you like.)
The video load is done by copying the url from data-src= into src= when the video container is at the desired spot on the page. (in this case, 100px below the viewable area)
fiddle
note, the video won't load on stack so be sure to view the fiddle
https://jsfiddle.net/Hastig/xszu6b1p/
I scraped it together from these two answers..
Youtube Autoplay
Ladyload Images
$(window).scroll(function() {
$.each($('iframe'), function() {
if ( $(this).attr('data-src') && $(this).offset().top < ($(window).scrollTop() + $(window).height() + 100) ) {
var source = $(this).data('src');
$(this).attr('src', source);
$(this).removeAttr('data-src');
}
})
})
body {
margin: 0;
}
.filler {
display: flex;
justify-content: center;
align-items: center;
height: 800px;
}
.filler-top { background-color: blue }
.filler-btm { background-color: green; }
.video-container {
/* css tricks - responsive iframe video */
/* https://css-tricks.com/NetMag/FluidWidthVideo/Article-FluidWidthVideo.php */
position: relative;
padding-bottom: 56.25%; /* 16:9 */
padding-top: 25px;
height: 0;
display: flex;
justify-content: center;
background-color: red;
}
.video-container iframe {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="filler filler-top">filler top</div>
<div class="video-container">
<iframe data-src="https://www.youtube.com/embed/f0JDs4FY8cQ?rel=0&autoplay=1"></iframe>
</div>
<div class="filler filler-btm">filler bottom</div>
I'm talking about this site here: malcolmtanti.com
I am using this function:
<script>
var image = new Image();
image.onload = function () {
$('header').animate({opacity: 1}, 2000);
}
image.src = "./images/background.jpg";
</script>
to animate the fade in of my main background image and the title etc. It should fade in the header element in my css.
This is the CSS:
header{
position: relative;
background: url(../images/background.jpg) no-repeat top center;
background-size: cover !important;
-webkit-background-size: cover !important;
/*height: 700*/
top:50px;
min-height:95%;
max-width: 100%;
overflow: hidden;
opacity:0;
}
For some reason, the first time I access the site, the picture loads for me, but once I press refresh, the opacity of the header tag is remaining 0. How can this be?
It might be a problem with the browser caching the image so that when you refresh the page it doesn't fire the animation since the image is already preloaded.
Try loading the image with a unique id (like the current time) to prevent this.
<script>
var image = $('<img/>');
var srcText = './images/background.jpg?t=' + new Date().getTime();
image.attr('src', srcText).load(function() {
$(this).remove();
$('header').animate({opacity: 1}, 2000);
});
</script>
U have used the link from (link tag, script tag )the href = "http://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css" and src of the script like this. Don't use like this. copy the code of above link and place it in your folder and refer that local link..
I've been using the following function to hide my div's when I no longer wanted them to be visible
function hide(div) {
document.getElementById(div).style.display = 'none';
}
However the problem has arrived with the div inparticular.
<div id="loading">
<img src="./img/loading.gif"/>
</div>
When I call the function hide('loading') only parts are the image are hidden, and slices of it are burnt onto the page. Considering this is supposed to be a little loading icon, having is stamped into the page isn't really what I'm going for, how can I prevent this?
I'm using the loading icon while processing network data, then hiding it upon receiving and processing data from the server(nodejs).
css as requested:
#loading {
position: fixed;
top: 50%;
left: 50%;
margin-top: -64px;
margin-left: -64px;
z-index: 999;
}
can u try this..??
Html
<div id="one">
<img src="https://elora.aerb.gov.in/ELORA/images/loadingnew.gif">
</div>
<div id="two">
<img src="http://www.schultzlawoffice.com/img/loading/loading.gif">
</div>
Script
$(document).ready(function () {
$("div").on("click", function () {
var thisId = $(this)
hide(thisId);
});
});
function hide(thisId) {
$(thisId).hide();
}
Fiddle Sample
I have an iframe that loads a third party website which is extremely slow to load.
Is there a way I can display a loading message while that iframe loads the user doesn't see a large blank space?
PS. Note that the iframe is for a third party website so I can't modify / inject anything on their page.
I have done the following css approach:
<div class="holds-the-iframe"><iframe here></iframe></div>
.holds-the-iframe {
background:url(../images/loader.gif) center center no-repeat;
}
I think that this code is going to help:
JS:
$('#foo').ready(function () {
$('#loadingMessage').css('display', 'none');
});
$('#foo').load(function () {
$('#loadingMessage').css('display', 'none');
});
HTML:
<iframe src="http://google.com/" id="foo"></iframe>
<div id="loadingMessage">Loading...</div>
CSS:
#loadingMessage {
width: 100%;
height: 100%;
z-index: 1000;
background: #ccc;
top: 0px;
left: 0px;
position: absolute;
}
If it's only a placeholder you are trying to achieve: a crazy approach is to inject text as an svg-background. It allows for some flexbility, and from what I've read the browser support should be fairly decent (haven't tested it though):
Chrome >= 27
FireFox >= 30
Internet Explorer >= 9
Safari >= 5.1
html:
<iframe class="iframe-placeholder" src=""></iframe>
css:
.iframe-placeholder
{
background: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 100% 100%"><text fill="%23FF0000" x="50%" y="50%" font-family="\'Lucida Grande\', sans-serif" font-size="24" text-anchor="middle">PLACEHOLDER</text></svg>') 0px 0px no-repeat;
}
What can you change?
Inside the background-value:
font size: look for font-size="" and change the value to anything you want
font color: look for fill="". Don't forget to replace the # with %23 if you're using hexadecimal color notation. %23 stands for a # in URL encoding which is necessary for the svg-string to be able to be parsed in FireFox.
font family: look for font-family="" remember to escape the single quotes if you have a font that consists of multiple words (like with \'Lucida Grande\')
text: look for the element value of the text-element where you see the PLACEHOLDER string. You can replace the PLACEHOLDER string with anything that is url-compliant (special characters need to be converted to percent notation)
Example on fiddle
Pros:
No extra HTML-elements
No js
Text can easily (...) be adjusted without the need of an external program
It's SVG, so you can easily put any SVG you want in there.
Cons:
Browser support
It's complex
It's hacky
If the iframe-src doesn't have a background set, the placeholder will shine through (which is not inherent to this method, but just standard behaviour when you use a bg on the iframe)
I would only recommend this only if it's absolutely necessary to show text as a placeholder in an iframe which requires a little bit of flexbility (multiple languages, ...). Just take a moment and reflect on it: is all this really necessary? If I had a choice, I'd go for #Christina's method
An alternative solution.
<iframe srcdoc="Loading..." onload="this.removeAttribute('srcdoc')" src="https://example.com"></iframe>
Note that srcdoc attribute can have any HTML markup. So you can apply custom styles to the message.
<iframe id="example" src="https://example.com"></iframe>
<script>
const iframe = document.getElementById('example');
iframe.srcdoc = '<!DOCTYPE html><p style="color: green;">Loading...</p>';
iframe.addEventListener('load', () => iframe.removeAttribute('srcdoc'));
</script>
Here's a quick solution for most of the cases:
CSS:
.iframe-loading {
background:url(/img/loading.gif) center center no-repeat;
}
You can use an animated loading GIF if you want to,
HTML:
<div class="iframe-loading">
<iframe src="http://your_iframe_url_goes_here" onload="$('.iframe-loading').css('background-image', 'none');"></iframe>
</div>
Using the onload event you can remove the loading image after the source page is loaded inside your iframe.
If you are not using jQuery, just put an id into the div and replace this part of code:
$('.iframe-loading').css('background-image', 'none');
by something like this:
document.getElementById("myDivName").style.backgroundImage = "none";
All the best!
$('iframe').load(function(){
$(".loading").remove();
alert("iframe is done loading")
}).show();
<iframe src="http://www.google.com" style="display:none;" width="600" height="300"/>
<div class="loading" style="width:600px;height:300px;">iframe loading</div>
Yes, you could use a transparent div positioned over the iframe area, with a loader gif as only background.
Then you can attach an onload event to the iframe:
$(document).ready(function() {
$("iframe#id").load(function() {
$("#loader-id").hide();
});
});
You can use below code .
iframe {background:url(../images/loader.gif) center center no-repeat; height: 100%;}
I have followed the following approach
First, add sibling div
$('<div class="loading"></div>').insertBefore("#Iframe");
and then when the iframe completed loading
$("#Iframe").load(function(){
$(this).siblings(".loading-fetching-content").remove();
});
<!DOCTYPE html>
<html>
<head>
<title>jQuery Demo - IFRAME Loader</title>
<style>
#frameWrap {
position:relative;
height: 360px;
width: 640px;
border: 1px solid #777777;
background:#f0f0f0;
box-shadow:0px 0px 10px #777777;
}
#iframe1 {
height: 360px;
width: 640px;
margin:0;
padding:0;
border:0;
}
#loader1 {
position:absolute;
left:40%;
top:35%;
border-radius:20px;
padding:25px;
border:1px solid #777777;
background:#ffffff;
box-shadow:0px 0px 10px #777777;
}
</style>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
</head>
<body>
<div id="frameWrap">
<img id="loader1" src="loading.gif" width="36" height="36" alt="loading gif"/>
<iframe id="iframe1" src="https://bots.actcorp.in/ACTAppChat/chat?authtext=test#user8.com&authToken=69d1afc8d06fb97bdb5a9275edbc53b375c3c7662c88b78239ba0cd8a940d59e" ></iframe>
</div>
<script>
$(document).ready(function () {
$('#iframe1').on('load', function () {
$('#loader1').hide();
});
});
</script>
</body>
</html>
You can use as below
$('#showFrame').on("load", function () {
loader.hide();
});
I want to drop the opacity and overlay text on a thumbnail image when I mouse over it. I have several ideas about how to do it, but I'm fairly certain they're inefficient and clumsy.
Make a duplicate image in Photoshop with the text overlay and reduced opacity. Swap the original out for the duplicate on mouseover.
Use CSS to drop the opacity on mouseover. Use Javascript to toggle visibility of a div containing the overlay text.
The problem I see with 1 is it seems like an unnecessary use of space and bandwidth, and will cause slow load times. With 2, it seems like I'd have to hard-code in the location of each div, which would be a pain to maintain and update. I know this is a somewhat general question, but I'm at a loss about how to go about this. How can I do this relatively simple task in a way that will make it easy to add new thumbnails?
Wrap your image in a <div class="thumb">
Add position: relative to .thumb.
Add <div class="text> inside .thumb.
Add display: none; position: absolute; bottom: 0 to .text.
Use .thumb:hover .text { display: block } to make the text visible on hover.
Like this: http://jsfiddle.net/dYxYs/
You could enhance this with some JavaScript/jQuery: http://jsfiddle.net/dYxYs/1/
$('.text').hide().removeClass('text').addClass('text-js');
$('.thumb').hover(function(){
$(this).find('.text-js').fadeToggle();
});
This way, the basic effect still works without JavaScript, and users with JavaScript get the appealing fade effect.
Go with option 2. There are ways to do it to not have to write a jQuery function for each image. As seen in my jsfiddle.
http://jsfiddle.net/daybreaker/dfJHZ/
HTML
<img src="http://placekitten.com/300/300" />
<span class="text" style="display:none">THIS IS A KITTEN</span>
<br><br>
<img src="http://placekitten.com/200/200" />
<span class="text" style="display:none">THIS IS A KITTEN</span>
jQuery
$('img').mouseover(function(){
$(this).css('opacity','.2');
$(this).next('span.text').show();
}).mouseout(function(){
$(this).css('opacity','1');
$(this).next('span.text').hide();
});
You would need to modify the span.text css to overlay it on top of the image, but that shouldnt be too bad.
Wrap it in an element and do something like this:
var t;
$('div.imgwrap img').hover(function(){
t = $('<div />').text($(this).attr('title')).appendTo($(this).parent());
$(this).fadeTo('fast',0.5);
},function(){
$(this).fadeTo('fast',1);
$(t).remove();
});
with a markup similar to:
<div class="imgwrap">
<img src="http://www.gravatar.com/avatar/3d561d41394ff0d5d0715b2695c3dcf0?s=128&d=identicon&r=PG" title="text" />
</div>
example: http://jsfiddle.net/niklasvh/Wtr9W/
Here's an example. You can position the text however you want, but the basic principle below.
http://jsfiddle.net/Xrvha/
#container { position: relative; }
#container img, #container div {
position: absolute;
width: 128px;
height: 128px;
}
#container img { z-index -1; }
#container div {
z-index 1;
line-height: 128px;
opacity: 0;
text-align: center;
}
#container:hover img {
opacity: 0.35;
}
#container:hover div {
opacity: 1;
}
If you don't want to change your HTML wraping things etc, I suggest you this way. Here is the jQuery:
$(function() {
$(".thumb").mouseenter(function() {
var $t = $(this);
var $d = $("<div>");
$d.addClass("desc").text($t.attr("alt")).css({
width: $t.width(),
height: $t.height() - 20,
top: $t.position().top
});
$t.after($d).fadeTo("fast", 0.3);
$d.mouseleave(function() {
$(this).fadeOut("fast", 0, function() {
$(this).remove();
}).siblings("img.thumb").fadeTo("fast", 1.0);
});
});
});
2 is a good solution, have done about the same as this and it isn't as hard as you would've tought;
Drop de opacity with css indeed, than position a div relative to the img, and over it. It can be done with plain css. The z-index is the trick. That div can just be shown with $('#div').slideUp() ie.