75 lines
1.9 KiB
JavaScript
75 lines
1.9 KiB
JavaScript
/*
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GreedyNav.js - https://github.com/lukejacksonn/GreedyNav
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Licensed under the MIT license - http://opensource.org/licenses/MIT
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Copyright (c) 2015 Luke Jackson
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*/
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$(document).ready(function(){
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var $btn = $('nav.greedy-nav button');
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var $vlinks = $('nav.greedy-nav .visible-links');
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var $hlinks = $('nav.greedy-nav .hidden-links');
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var numOfItems = 0;
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var totalSpace = 0;
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var closingTime = 1000;
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var breakWidths = [];
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// Get initial state
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$vlinks.children().outerWidth(function(i, w) {
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totalSpace += w;
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numOfItems += 1;
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breakWidths.push(totalSpace);
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});
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var availableSpace, numOfVisibleItems, requiredSpace, timer;
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function check() {
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// Get instant state
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availableSpace = $vlinks.width() - 10;
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numOfVisibleItems = $vlinks.children().length;
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requiredSpace = breakWidths[numOfVisibleItems - 1];
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// There is not enough space
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if (requiredSpace > availableSpace) {
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$vlinks.children().last().prependTo($hlinks);
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numOfVisibleItems -= 1;
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check();
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// There is more than enough space
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} else if (availableSpace > breakWidths[numOfVisibleItems]) {
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$hlinks.children().first().appendTo($vlinks);
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numOfVisibleItems += 1;
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check();
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}
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// Update the button accordingly
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$btn.attr("count", numOfItems - numOfVisibleItems);
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if (numOfVisibleItems === numOfItems) {
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$btn.addClass('hidden');
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} else $btn.removeClass('hidden');
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}
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// Window listeners
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$(window).resize(function() {
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check();
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});
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$btn.on('click', function() {
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$hlinks.toggleClass('hidden');
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$(this).toggleClass('close');
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clearTimeout(timer);
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});
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$hlinks.on('mouseleave', function() {
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// Mouse has left, start the timer
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timer = setTimeout(function() {
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$hlinks.addClass('hidden');
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}, closingTime);
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}).on('mouseenter', function() {
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// Mouse is back, cancel the timer
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clearTimeout(timer);
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})
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check();
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}); |