112 lines
3.5 KiB
JavaScript
112 lines
3.5 KiB
JavaScript
/* expandable sections */
|
|
(function () {
|
|
function toggle (button, target) {
|
|
var expanded = button.getAttribute('aria-expanded') === 'true'
|
|
button.setAttribute('aria-expanded', !expanded)
|
|
target.hidden = !target.hidden
|
|
}
|
|
|
|
var expanders = document.querySelectorAll('[data-expands]')
|
|
|
|
Array.prototype.forEach.call(expanders, function (expander) {
|
|
var target = document.getElementById(expander.getAttribute('data-expands'))
|
|
|
|
expander.addEventListener('click', function () {
|
|
toggle(expander, target)
|
|
})
|
|
})
|
|
}());
|
|
|
|
/* menu button */
|
|
(function () {
|
|
var button = document.getElementById('menu-button')
|
|
if (button) {
|
|
var menu = document.getElementById('patterns-list')
|
|
button.addEventListener('click', function() {
|
|
var expanded = this.getAttribute('aria-expanded') === 'true'
|
|
this.setAttribute('aria-expanded', !expanded)
|
|
})
|
|
}
|
|
}());
|
|
|
|
/* persist navigation scroll point */
|
|
(function () {
|
|
window.onunload = function () {
|
|
var patternsNav = document.getElementById('patterns-nav')
|
|
if (patternsNav) {
|
|
var scrollPoint = patternsNav.scrollTop
|
|
localStorage.setItem('scrollPoint', scrollPoint)
|
|
}
|
|
}
|
|
|
|
window.addEventListener('DOMContentLoaded', function () {
|
|
if (document.getElementById('patterns-nav')) {
|
|
if (window.location.href.indexOf('patterns/') !== -1) {
|
|
document.getElementById('patterns-nav').scrollTop = parseInt(localStorage.getItem('scrollPoint'))
|
|
} else {
|
|
document.getElementById('patterns-nav').scrollTop = 0
|
|
}
|
|
}
|
|
})
|
|
}());
|
|
|
|
/* Add "link here" links to <h2> headings */
|
|
(function () {
|
|
var headings = document.querySelectorAll('main > h2')
|
|
|
|
Array.prototype.forEach.call(headings, function (heading) {
|
|
var id = heading.getAttribute('id')
|
|
|
|
if (id) {
|
|
var newHeading = heading.cloneNode(true)
|
|
|
|
var container = document.createElement('div')
|
|
container.setAttribute('class', 'h2-container')
|
|
container.appendChild(newHeading)
|
|
|
|
heading.parentNode.insertBefore(container, heading)
|
|
|
|
var link = document.createElement('a')
|
|
link.setAttribute('href', '#' + id)
|
|
var headingText = heading.textContent
|
|
link.setAttribute('aria-label', 'To this ' + headingText + ' section')
|
|
link.innerHTML = '<svg aria-hidden="true" viewBox="0 0 50 50" focusable="false"> <use xlink:href="#link"></use> </svg>'
|
|
|
|
container.appendChild(link)
|
|
|
|
heading.parentNode.removeChild(heading);
|
|
}
|
|
})
|
|
}());
|
|
|
|
|
|
// SVG scaling fix for IE10-11
|
|
(function () {
|
|
if (window.matchMedia('(-ms-high-contrast: none), (-ms-high-contrast: active)').matches) {
|
|
// Get all the SVGs on the page except the symbol defs
|
|
var svgs = document.querySelectorAll('a svg, button svg, h1 svg')
|
|
// ... iterate over SVGs
|
|
Array.prototype.forEach.call(svgs, function(svg) {
|
|
// Set preserveAspectRatio to 'XMidYMin slice'
|
|
svg.setAttribute('preserveAspectRatio', 'xMidYMin slice')
|
|
|
|
// Turn the viewBox values into an array
|
|
var viewBox = svg.getAttribute('viewBox').split(' ')
|
|
|
|
// Calculate padding value needed (width/height x 100)
|
|
var padding = (viewBox[2] / viewBox[3]) * 100
|
|
|
|
// Set inline styles
|
|
svg.setAttribute('style', 'width: 100%; padding-bottom: ' + padding + '%; height: 1px; overflow: visible')
|
|
|
|
// Create span wrapper
|
|
var span = document.createElement('span')
|
|
span.setAttribute('class', 'svg-outer')
|
|
span.style.width = '0.75em'
|
|
|
|
svg.parentNode.insertBefore(span, svg)
|
|
span.appendChild(svg)
|
|
})
|
|
}
|
|
}());
|