99 lines
No EOL
5.4 KiB
JavaScript
99 lines
No EOL
5.4 KiB
JavaScript
(function(){
|
|
/*! svg4everybody v2.1.9 | github.com/jonathantneal/svg4everybody */
|
|
function embed(parent, svg, target) {
|
|
// if the target exists
|
|
if (target) {
|
|
// create a document fragment to hold the contents of the target
|
|
var fragment = document.createDocumentFragment(), viewBox = !svg.hasAttribute("viewBox") && target.getAttribute("viewBox");
|
|
// conditionally set the viewBox on the svg
|
|
viewBox && svg.setAttribute("viewBox", viewBox);
|
|
// copy the contents of the clone into the fragment
|
|
for (// clone the target
|
|
var clone = target.cloneNode(!0); clone.childNodes.length; ) {
|
|
fragment.appendChild(clone.firstChild);
|
|
}
|
|
// append the fragment into the svg
|
|
parent.appendChild(fragment);
|
|
}
|
|
}
|
|
function loadreadystatechange(xhr) {
|
|
// listen to changes in the request
|
|
xhr.onreadystatechange = function() {
|
|
// if the request is ready
|
|
if (4 === xhr.readyState) {
|
|
// get the cached html document
|
|
var cachedDocument = xhr._cachedDocument;
|
|
// ensure the cached html document based on the xhr response
|
|
cachedDocument || (cachedDocument = xhr._cachedDocument = document.implementation.createHTMLDocument(""),
|
|
cachedDocument.body.innerHTML = xhr.responseText, xhr._cachedTarget = {}), // clear the xhr embeds list and embed each item
|
|
xhr._embeds.splice(0).map(function(item) {
|
|
// get the cached target
|
|
var target = xhr._cachedTarget[item.id];
|
|
// ensure the cached target
|
|
target || (target = xhr._cachedTarget[item.id] = cachedDocument.getElementById(item.id)),
|
|
// embed the target into the svg
|
|
embed(item.parent, item.svg, target);
|
|
});
|
|
}
|
|
}, // test the ready state change immediately
|
|
xhr.onreadystatechange();
|
|
}
|
|
function svg4everybody(rawopts) {
|
|
function oninterval() {
|
|
// while the index exists in the live <use> collection
|
|
for (// get the cached <use> index
|
|
var index = 0; index < uses.length; ) {
|
|
// get the current <use>
|
|
var use = uses[index], parent = use.parentNode, svg = getSVGAncestor(parent), src = use.getAttribute("xlink:href") || use.getAttribute("href");
|
|
if (!src && opts.attributeName && (src = use.getAttribute(opts.attributeName)),
|
|
svg && src) {
|
|
if (polyfill) {
|
|
if (!opts.validate || opts.validate(src, svg, use)) {
|
|
// remove the <use> element
|
|
parent.removeChild(use);
|
|
// parse the src and get the url and id
|
|
var srcSplit = src.split("#"), url = srcSplit.shift(), id = srcSplit.join("#");
|
|
// if the link is external
|
|
if (url.length) {
|
|
// get the cached xhr request
|
|
var xhr = requests[url];
|
|
// ensure the xhr request exists
|
|
xhr || (xhr = requests[url] = new XMLHttpRequest(), xhr.open("GET", url), xhr.send(),
|
|
xhr._embeds = []), // add the svg and id as an item to the xhr embeds list
|
|
xhr._embeds.push({
|
|
parent: parent,
|
|
svg: svg,
|
|
id: id
|
|
}), // prepare the xhr ready state change event
|
|
loadreadystatechange(xhr);
|
|
} else {
|
|
// embed the local id into the svg
|
|
embed(parent, svg, document.getElementById(id));
|
|
}
|
|
} else {
|
|
// increase the index when the previous value was not "valid"
|
|
++index, ++numberOfSvgUseElementsToBypass;
|
|
}
|
|
}
|
|
} else {
|
|
// increase the index when the previous value was not "valid"
|
|
++index;
|
|
}
|
|
}
|
|
// continue the interval
|
|
(!uses.length || uses.length - numberOfSvgUseElementsToBypass > 0) && requestAnimationFrame(oninterval, 67);
|
|
}
|
|
var polyfill, opts = Object(rawopts), newerIEUA = /\bTrident\/[567]\b|\bMSIE (?:9|10)\.0\b/, webkitUA = /\bAppleWebKit\/(\d+)\b/, olderEdgeUA = /\bEdge\/12\.(\d+)\b/, edgeUA = /\bEdge\/.(\d+)\b/, inIframe = window.top !== window.self;
|
|
polyfill = "polyfill" in opts ? opts.polyfill : newerIEUA.test(navigator.userAgent) || (navigator.userAgent.match(olderEdgeUA) || [])[1] < 10547 || (navigator.userAgent.match(webkitUA) || [])[1] < 537 || edgeUA.test(navigator.userAgent) && inIframe;
|
|
// create xhr requests object
|
|
var requests = {}, requestAnimationFrame = window.requestAnimationFrame || setTimeout, uses = document.getElementsByTagName("use"), numberOfSvgUseElementsToBypass = 0;
|
|
// conditionally start the interval if the polyfill is active
|
|
polyfill && oninterval();
|
|
}
|
|
function getSVGAncestor(node) {
|
|
for (var svg = node; "svg" !== svg.nodeName.toLowerCase() && (svg = svg.parentNode); ) {}
|
|
return svg;
|
|
}
|
|
|
|
svg4everybody();
|
|
}()); |