How can I detect whether an iframe is loaded?
I imagine this like that:
<html>
<head>
<script>
var frame_loaded = 0;
function setFrameLoaded()
{
frame_loaded = 1;
alert("Iframe is loaded");
}
$('#click').click(function(){
if(frame_loaded == 1)
console.log('iframe loaded')
} else {
console.log('iframe not loaded')
}
})
</script>
</head>
<button id='click'>click me</button>
<iframe id='MainPopupIframe' onload='setFrameLoaded();' src='http://...' />...</iframe>
You may try this (using jQuery)
$(function(){
$('#MainPopupIframe').load(function(){
$(this).show();
console.log('iframe loaded successfully')
});
$('#click').on('click', function(){
$('#MainPopupIframe').attr('src', 'https://heera.it');
});
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button id='click'>click me</button>
<iframe style="display:none" id='MainPopupIframe' src='' /></iframe>jsfiddle DEMO.
Update: Using plain javascript
window.onload = function(){
var ifr = document.getElementById('MainPopupIframe');
ifr.onload=function(){
this.style.display='block';
console.log('laod the iframe')
};
var btn = document.getElementById('click');
btn.onclick=function(){
ifr.src='https://heera.it';
};
};<button id='click'>click me</button>
<iframe style="display:none" id='MainPopupIframe' src='' /></iframe>jsfiddle DEMO.
Update: Also you can try this (dynamic iframe)
$(function(){
$('#click').on('click', function(){
var ifr = $('<iframe/>', {
id:'MainPopupIframe',
src:'https://heera.it',
style:'display:none;width:320px;height:400px',
load:function(){
$(this).show();
alert('iframe loaded !');
}
});
$('body').append(ifr);
});
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button id='click'>click me</button><br />jsfiddle DEMO.