45 lines
1.4 KiB
JavaScript
45 lines
1.4 KiB
JavaScript
/* expandable sections */
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(function () {
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function toggle (button, target) {
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var expanded = button.getAttribute('aria-expanded') === 'true'
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button.setAttribute('aria-expanded', !expanded)
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target.hidden = !target.hidden
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}
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var expanders = document.querySelectorAll('[data-expands]')
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Array.prototype.forEach.call(expanders, function (expander) {
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var target = document.getElementById(expander.getAttribute('data-expands'))
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expander.addEventListener('click', function () {
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toggle(expander, target)
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})
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})
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}());
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/* menu button */
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(function () {
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var button = document.getElementById('menu-button')
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var menu = document.getElementById('patterns-list')
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button.addEventListener('click', function() {
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var expanded = this.getAttribute('aria-expanded') === 'true'
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this.setAttribute('aria-expanded', !expanded)
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})
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}());
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/* persist navigation scroll point */
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(function () {
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window.onunload = function () {
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var scrollPoint = document.getElementById('patterns-nav').scrollTop
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localStorage.setItem('scrollPoint', scrollPoint)
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}
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window.addEventListener('DOMContentLoaded', function () {
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if (window.location.href.indexOf('patterns/') !== -1) {
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document.getElementById('patterns-nav').scrollTop = parseInt(localStorage.getItem('scrollPoint'))
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} else {
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document.getElementById('patterns-nav').scrollTop = 0
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}
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})
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}());
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