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Initial version

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Pascal Martineau
2018-01-17 14:09:34 -05:00
commit fa05241a63
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<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="../reset.css" rel="stylesheet"/>
<link href="./style.css" rel="stylesheet"/>
<title>MixItUp Pagination Demo - Infinite Scroll</title>
<!--
NB: This grid's responsive behavior has been limited to 2 or 4 columns for
simplicity, but could easily be combined with the responsive pagination demo
to load in a dynamic amount of items while scrolling, as per the current
column count.
-->
</head>
<body>
<div class="controls">
<button type="button" class="control" data-filter="all">All</button>
<button type="button" class="control" data-filter=".green">Green</button>
<button type="button" class="control" data-filter=".blue">Blue</button>
<button type="button" class="control" data-filter=".pink">Pink</button>
<button type="button" class="control" data-filter="none">None</button>
<button type="button" class="control" data-sort="default:asc">Asc</button>
<button type="button" class="control" data-sort="default:desc">Desc</button>
</div>
<div class="container">
<div class="mix green"></div>
<div class="mix green"></div>
<div class="mix blue"></div>
<div class="mix pink"></div>
<div class="mix green"></div>
<div class="mix blue"></div>
<div class="mix pink"></div>
<div class="mix blue"></div>
<div class="mix green"></div>
<div class="mix green"></div>
<div class="mix blue"></div>
<div class="mix pink"></div>
<div class="mix green"></div>
<div class="mix blue"></div>
<div class="mix pink"></div>
<div class="mix blue"></div>
<div class="mix green"></div>
<div class="mix green"></div>
<div class="mix blue"></div>
<div class="mix pink"></div>
<div class="mix green"></div>
<div class="mix blue"></div>
<div class="mix pink"></div>
<div class="mix blue"></div>
<div class="mix blue"></div>
<div class="mix pink"></div>
<div class="mix green"></div>
<div class="mix blue"></div>
<div class="mix pink"></div>
<div class="mix blue"></div>
<div class="mix green"></div>
<div class="mix green"></div>
<div class="mix blue"></div>
<div class="mix pink"></div>
<div class="mix green"></div>
<div class="mix blue"></div>
<div class="mix pink"></div>
<div class="mix blue"></div>
<div class="mix blue"></div>
<div class="mix pink"></div>
<div class="mix green"></div>
<div class="mix blue"></div>
<div class="mix pink"></div>
<div class="mix blue"></div>
<div class="mix green"></div>
<div class="mix green"></div>
<div class="mix blue"></div>
<div class="mix pink"></div>
<div class="mix green"></div>
<div class="mix blue"></div>
<div class="mix pink"></div>
<div class="mix blue"></div>
<div class="gap"></div>
<div class="gap"></div>
<div class="gap"></div>
</div>
<script src="../mixitup.min.js"></script>
<script src="../../dist/mixitup-pagination.js"></script>
<script>
var containerEl = document.querySelector('.container');
var loadMoreEl = document.querySelector('.load-more');
var currentLimit = 16;
var incrementAmount = 4;
var canLoadMore = true;
var scrollThreshold = 50;
/**
* A generic throttle function to prevent UI thrashing
* on scroll.
*
* @param {function} fn
* @param {number} interval
* @return {function}
*/
function throttle(fn, interval) {
var timeoutId = -1;
var last = -1;
return function() {
var self = this;
var args = arguments;
var now = Date.now();
var difference = last ? now - last : Infinity;
var later = function() {
last = now;
fn.apply(self, args);
};
if (!last || difference >= interval) {
later();
} else {
clearTimeout(timeoutId);
timeoutId = setTimeout(later, interval - difference);
}
};
}
/**
* Checks if we are within the scroll threshold on each
* scroll event, and if so, increments the page limit.
*
* @return {void}
*/
function handleScroll() {
if (mixer.isMixing() || !canLoadMore) return;
var scrollTop = window.scrollY || window.pageYOffset || document.documentElement.scrollTop;
var offset = scrollTop + window.innerHeight;
var containerHeight = containerEl.offsetHeight;
if (offset >= containerHeight - scrollThreshold) {
incrementPageLimit();
}
}
/**
* Shows a set number of new targets at the bottom of
* the page by incrementing the page limit.
*
* @return {void}
*/
function incrementPageLimit() {
currentLimit += incrementAmount;
mixer.paginate({limit: currentLimit});
}
/**
* Check whether the current matching collection of target
* elements has additional hidden elements, and set the
* `canLoadMore` flag accordingly.
*
* @param {mixitup.State} state
* @return {void}
*/
function handleMixEnd(state) {
// At the end of each operation, we must check whether the current
// matching collection of target elements has additional hidden
// elements, and set the `canLoadMore` flag accordingly.
if (state.activePagination.limit + incrementAmount >= state.totalMatching) {
canLoadMore = false;
} else {
canLoadMore = true;
}
setTimeout(handleScroll, 10);
}
// Instantiate mixitup
var mixer = mixitup(containerEl, {
pagination: {
limit: currentLimit
},
callbacks: {
onMixEnd: handleMixEnd
}
});
// Attach a throttled scroll handler to the scroll event. Will fire
// up to a maximum of once every 50ms.
window.addEventListener('scroll', throttle(handleScroll, 50));
</script>
</body>
</html>