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<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8" />
<title>
Lazyload tests
</title>
<meta name="viewport" content="width=device-width, initial-scale=1" />
<style>
ul,
li {
list-style-type: none;
margin: 0;
padding: 0;
}
a,
img {
display: block;
}
img {
border: 0;
width: 220px;
height: 280px;
}
img:not([src]) {
visibility: hidden;
}
button {
position: fixed;
bottom: 10px;
width: 10em;
height: 3em;
left: 50%;
margin-left: -5em;
}
</style>
</head>
<body>
<button id="addContent">
ADD CONTENT
<span class="count"></span>
</button>
<div id="results1" class="results">
<ul>
<li>
<a href="#">
<img
alt="Stivaletti"
data-src="https://via.placeholder.com/440x560?text=Img+01"
width="220"
height="280"
/>
</a>
</li>
<li>
<a href="#">
<img
alt="Open toe"
data-src="https://via.placeholder.com/440x560?text=Img+02"
width="220"
height="280"
/>
</a>
</li>
<li>
<a href="#">
<img
alt="Sneakers &amp; Tennis"
data-src="https://via.placeholder.com/440x560?text=Img+03"
width="220"
height="280"
/>
</a>
</li>
<li>
<a href="#">
<img
alt="Sneakers &amp; Tennis shoes basse"
data-src="https://via.placeholder.com/440x560?text=Img+04"
width="220"
height="280"
/>
</a>
</li>
<li>
<a href="#">
<img
alt="Sneakers &amp; Tennis shoes alte"
data-src="https://via.placeholder.com/440x560?text=Img+05"
width="220"
height="280"
/>
</a>
</li>
<li>
<a href="#">
<img
alt="Sneakers &amp; Tennis shoes alte"
data-src="https://via.placeholder.com/440x560?text=Img+06"
width="220"
height="280"
/>
</a>
</li>
<li>
<a href="#">
<img
alt="Sneakers &amp; Tennis shoes basse"
data-src="https://via.placeholder.com/440x560?text=Img+07"
width="220"
height="280"
/>
</a>
</li>
</ul>
</div>
<script src="../dist/lazyload.js"></script>
<script>
(function() {
var count = 0,
addContentButton,
additionalContent,
target;
function logElementEvent(eventName, element) {
console.log(
Date.now(),
eventName,
element.getAttribute("data-src")
);
}
var callback_enter = function(element) {
logElementEvent("🔑 ENTERED", element);
};
var callback_exit = function(element) {
logElementEvent("🚪 EXITED", element);
};
var callback_reveal = function(element) {
logElementEvent("👁️ REVEALED", element);
};
var callback_loaded = function(element) {
logElementEvent("👍 LOADED", element);
};
var callback_error = function(element) {
logElementEvent("💀 ERROR", element);
element.src =
"https://via.placeholder.com/440x560/?text=Error+Placeholder";
};
var callback_finish = function() {
logElementEvent("✔️ FINISHED", document.documentElement);
};
var ll = new LazyLoad({
// Assign the callbacks defined above
callback_enter: callback_enter,
callback_exit: callback_exit,
callback_reveal: callback_reveal,
callback_loaded: callback_loaded,
callback_error: callback_error,
callback_finish: callback_finish
});
additionalContent = [
'<li><a href="#"><img alt="Sneakers &amp; Tennis shoes basse" data-src="https://via.placeholder.com/440x560?text=Img+09" width="220" height="280"></a> </li> <li> <a href="#"><img alt="Stivali" data-src="https://via.placeholder.com/440x560?text=Img+10" width="220" height="280"></a> </li> <li> <a href="#"><img alt="Stivali" data-src="https://via.placeholder.com/440x560?text=Img+11" width="220" height="280"></a> </li> <li> <a href="#"><img alt="Stivaletti" data-src="https://via.placeholder.com/440x560?text=Img+12" width="220" height="280"></a> </li> <li> <a href="#"><img alt="Stivaletti" data-src="https://via.placeholder.com/440x560?text=Img+13" width="220" height="280"></a> </li> <li> <a href="#"><img alt="Stivali" data-src="https://via.placeholder.com/440x560?text=Img+14" width="220" height="280"></a> </li>',
'<li><a href="#"><img alt="Stivaletti" data-src="https://via.placeholder.com/440x560?text=Img+15" width="220" height="280"></a> </li> <li> <a href="#"><img alt="Décolleté" data-src="https://via.placeholder.com/440x560?text=Img+16" width="220" height="280"></a> </li> <li> <a href="#"><img alt="Mocassini" data-src="https://via.placeholder.com/440x560?text=Img+17" width="220" height="280"></a> </li> <li> <a href="#"><img alt="Stivaletti" data-src="https://via.placeholder.com/440x560?text=Img+18" width="220" height="280"></a> </li> <li> <a href="#"><img alt="Décolleté" data-src="https://via.placeholder.com/440x560?text=Img+19" width="220" height="280"></a> </li> <li> <a href="#"><img alt="Décolleté" data-src="https://via.placeholder.com/440x560?text=Img+20" width="220" height="280"></a> </li>',
'<li><a href="#"><img alt="Francesine" data-src="https://via.placeholder.com/440x560?text=Img+21" width="220" height="280"></a> </li> <li> <a href="#"><img alt="Stivaletti" data-src="https://via.placeholder.com/440x560?text=Img+22" width="220" height="280"></a> </li> <li> <a href="#"><img alt="Décolleté" data-src="https://via.placeholder.com/440x560?text=Img+23" width="220" height="280"></a> </li> <li> <a href="#"><img alt="Mocassini" data-src="https://via.placeholder.com/440x560?text=Img+24" width="220" height="280"></a> </li> <li> <a href="#"><img alt="Mocassini" data-src="https://via.placeholder.com/440x560?text=Img+25" width="220" height="280"></a> </li> <li> <a href="#"><img alt="Stivali" data-src="https://via.placeholder.com/440x560?text=Img+26" width="220" height="280"></a> </li>'
];
addContentButton = document.getElementById("addContent");
target = document.querySelector("#results1 ul");
addContentButton.addEventListener("click", () => {
if (count === additionalContent.length) {
return;
}
target.innerHTML += additionalContent[count];
ll.update();
addContentButton.disabled =
++count >= additionalContent.length;
});
})();
</script>
</body>
</html>
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