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demos/responsive-pagination/index.html
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168
demos/responsive-pagination/index.html
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<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<link href="../reset.css" rel="stylesheet"/>
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<link href="./style.css" rel="stylesheet"/>
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<title>MixItUp Pagination Demo - Responsive Pagination</title>
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<!--
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Responsive pagination enables to define the initial pagination limit based on the
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viewport width and then make real time adjustments in reaction to resize events. This
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is crucial when we want to maintain a full final row in our grid when our CSS contains a
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mixer of odd and even column counts at different breakpoints.
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-->
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</head>
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<body>
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<div class="controls">
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<button type="button" class="control" data-filter="all">All</button>
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<button type="button" class="control" data-filter=".green">Green</button>
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<button type="button" class="control" data-filter=".blue">Blue</button>
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<button type="button" class="control" data-filter=".pink">Pink</button>
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<button type="button" class="control" data-filter="none">None</button>
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<button type="button" class="control" data-sort="default:asc">Asc</button>
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<button type="button" class="control" data-sort="default:desc">Desc</button>
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</div>
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<div class="container">
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<div class="mix green"></div>
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<div class="mix green"></div>
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<div class="mix blue"></div>
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<div class="mix pink"></div>
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<div class="mix green"></div>
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<div class="mix blue"></div>
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<div class="mix pink"></div>
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<div class="mix blue"></div>
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<div class="mix green"></div>
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<div class="mix green"></div>
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<div class="mix blue"></div>
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<div class="mix pink"></div>
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<div class="mix green"></div>
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<div class="mix blue"></div>
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<div class="mix pink"></div>
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<div class="mix blue"></div>
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<div class="mix green"></div>
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<div class="mix green"></div>
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<div class="mix blue"></div>
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<div class="mix pink"></div>
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<div class="mix green"></div>
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<div class="mix blue"></div>
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<div class="mix pink"></div>
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<div class="mix blue"></div>
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<div class="gap"></div>
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<div class="gap"></div>
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<div class="gap"></div>
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</div>
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<div class="controls-pagination">
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<div class="mixitup-page-list"></div>
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<div class="mixitup-page-stats"></div>
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</div>
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<input type="hidden" class="column-counter"/>
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<script src="../mixitup.min.js"></script>
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<script src="../../dist/mixitup-pagination.js"></script>
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<script>
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var containerEl = document.querySelector('.container');
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var columnCounter = document.querySelector('.column-counter');
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var currentLimit = -1;
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// NB: The `columnLimitLookup` object is used as a lookup table for
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// the pagination limit relative to a particular number of columns.
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// This could also be expressed a function if, for example, the limit
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// is always twice the number of columns (e.g. 2 rows), but
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// this is often not the desired behavior case.
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var columnLimitLookup = {
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'2': 8,
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'3': 9,
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'4': 12,
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'5': 15
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};
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/**
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* Reads the value of the `font-size` CSS property from a hidden
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* `.column-counter` element in the DOM. This ensures all our responsive
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* behavior is defined solely in our CSS, without need to track viewport
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* width or define breakpoints in our JavaScript, which may also be
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* unreliable as scroll bars are added and removed on certain platforms
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* (i.e. windows). See style.css to understand how this is defined
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* at each breakpoint.
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*
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* @returns {number}
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*/
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function getColumns() {
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var styles = window.getComputedStyle(columnCounter);
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return parseInt(styles.fontSize);
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}
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/**
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* @return {number}
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*/
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function getPaginationLimit() {
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var columns = getColumns();
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return columnLimitLookup[columns];
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}
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/**
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* Compares the new limit to the current limit, and if has changed,
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* triggers a .paginate() API call to update the mixer.
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*
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* @return {void}
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*/
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function handleResize() {
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var newLimit = getPaginationLimit();
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// If the limit has not changed since the last resize event, do nothing.
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if (newLimit === currentLimit) return;
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currentLimit = newLimit;
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console.log('Changing to a limit of ' + currentLimit + ' items per page');
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mixer.paginate({
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limit: currentLimit
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}, false);
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// NB: We don't want to animate the limit change and create
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// unneeded jank on resize, so `false` is passed to ensure the
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// operation happens syncronously.
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}
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// Get the initial limit which with to instantiate the mixer.
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currentLimit = getPaginationLimit();
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// Instantiate MixItUp
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var mixer = mixitup(containerEl, {
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pagination: {
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limit: currentLimit
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},
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animation: {
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nudge: false
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}
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});
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console.log('Instantiating with a limit of ' + currentLimit + ' items per page');
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// Add a resize event handler. NB: You may want to throttle this
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// in production for performance, as the window.getComputedStyles()
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// call can be expensive.
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window.addEventListener('resize', handleResize);
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</script>
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</body>
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</html>
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