73 lines
1.9 KiB
Plaintext
73 lines
1.9 KiB
Plaintext
<script>
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// 懒加载 js
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function loadScript(src, cb) {
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setTimeout(function () {
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var HEAD =
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document.getElementsByTagName("head")[0] || document.documentElement;
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var script = document.createElement("script");
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script.setAttribute("type", "text/javascript");
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if (cb) script.onload = cb;
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script.setAttribute("src", src);
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HEAD.appendChild(script);
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});
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}
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// 懒加载 css https://github.com/filamentgroup/loadCSS
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var loadCSS = function (href, before, media, attributes) {
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var doc = window.document;
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var ss = doc.createElement("link");
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var ref;
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if (before) {
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ref = before;
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} else {
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var refs = (doc.body || doc.getElementsByTagName("head")[0]).childNodes;
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ref = refs[refs.length - 1];
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}
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var sheets = doc.styleSheets;
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if (attributes) {
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for (var attributeName in attributes) {
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if (attributes.hasOwnProperty(attributeName)) {
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ss.setAttribute(attributeName, attributes[attributeName]);
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}
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}
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}
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ss.rel = "stylesheet";
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ss.href = href;
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ss.media = "only x";
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function ready(cb) {
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if (doc.body) {
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return cb();
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}
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setTimeout(function () {
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ready(cb);
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});
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}
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ready(function () {
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ref.parentNode.insertBefore(ss, before ? ref : ref.nextSibling);
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});
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var onloadcssdefined = function (cb) {
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var resolvedHref = ss.href;
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var i = sheets.length;
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while (i--) {
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if (sheets[i].href === resolvedHref) {
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return cb();
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}
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}
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setTimeout(function () {
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onloadcssdefined(cb);
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});
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};
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function loadCB() {
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if (ss.addEventListener) {
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ss.removeEventListener("load", loadCB);
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}
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ss.media = media || "all";
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}
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if (ss.addEventListener) {
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ss.addEventListener("load", loadCB);
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}
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ss.onloadcssdefined = onloadcssdefined;
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onloadcssdefined(loadCB);
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return ss;
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};
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</script>
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