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5.0 KiB
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5.0 KiB
/*! Respond.js v1.4.2: min/max-width media query polyfill * Copyright 2013 Scott Jehl
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* Licensed under https://github.com/scottjehl/Respond/blob/master/LICENSE-MIT
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* */
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!function (a) { "use strict"; a.matchMedia = a.matchMedia || function (a) { var b, c = a.documentElement, d = c.firstElementChild || c.firstChild, e = a.createElement("body"), f = a.createElement("div"); return f.id = "mq-test-1", f.style.cssText = "position:absolute;top:-100em", e.style.background = "none", e.appendChild(f), function (a) { return f.innerHTML = '­<style media="' + a + '"> #mq-test-1 { width: 42px; }</style>', c.insertBefore(e, d), b = 42 === f.offsetWidth, c.removeChild(e), { matches: b, media: a } } }(a.document) }(this), function (a) { "use strict"; function b() { u(!0) } var c = {}; a.respond = c, c.update = function () { }; var d = [], e = function () { var b = !1; try { b = new a.XMLHttpRequest } catch (c) { b = new a.ActiveXObject("Microsoft.XMLHTTP") } return function () { return b } }(), f = function (a, b) { var c = e(); c && (c.open("GET", a, !0), c.onreadystatechange = function () { 4 !== c.readyState || 200 !== c.status && 304 !== c.status || b(c.responseText) }, 4 !== c.readyState && c.send(null)) }; if (c.ajax = f, c.queue = d, c.regex = { media: /@media[^\{]+\{([^\{\}]*\{[^\}\{]*\})+/gi, keyframes: /@(?:\-(?:o|moz|webkit)\-)?keyframes[^\{]+\{(?:[^\{\}]*\{[^\}\{]*\})+[^\}]*\}/gi, urls: /(url\()['"]?([^\/\)'"][^:\)'"]+)['"]?(\))/g, findStyles: /@media *([^\{]+)\{([\S\s]+?)$/, only: /(only\s+)?([a-zA-Z]+)\s?/, minw: /\([\s]*min\-width\s*:[\s]*([\s]*[0-9\.]+)(px|em)[\s]*\)/, maxw: /\([\s]*max\-width\s*:[\s]*([\s]*[0-9\.]+)(px|em)[\s]*\)/ }, c.mediaQueriesSupported = a.matchMedia && null !== a.matchMedia("only all") && a.matchMedia("only all").matches, !c.mediaQueriesSupported) { var g, h, i, j = a.document, k = j.documentElement, l = [], m = [], n = [], o = {}, p = 30, q = j.getElementsByTagName("head")[0] || k, r = j.getElementsByTagName("base")[0], s = q.getElementsByTagName("link"), t = function () { var a, b = j.createElement("div"), c = j.body, d = k.style.fontSize, e = c && c.style.fontSize, f = !1; return b.style.cssText = "position:absolute;font-size:1em;width:1em", c || (c = f = j.createElement("body"), c.style.background = "none"), k.style.fontSize = "100%", c.style.fontSize = "100%", c.appendChild(b), f && k.insertBefore(c, k.firstChild), a = b.offsetWidth, f ? k.removeChild(c) : c.removeChild(b), k.style.fontSize = d, e && (c.style.fontSize = e), a = i = parseFloat(a) }, u = function (b) { var c = "clientWidth", d = k[c], e = "CSS1Compat" === j.compatMode && d || j.body[c] || d, f = {}, o = s[s.length - 1], r = (new Date).getTime(); if (b && g && p > r - g) return a.clearTimeout(h), h = a.setTimeout(u, p), void 0; g = r; for (var v in l) if (l.hasOwnProperty(v)) { var w = l[v], x = w.minw, y = w.maxw, z = null === x, A = null === y, B = "em"; x && (x = parseFloat(x) * (x.indexOf(B) > -1 ? i || t() : 1)), y && (y = parseFloat(y) * (y.indexOf(B) > -1 ? i || t() : 1)), w.hasquery && (z && A || !(z || e >= x) || !(A || y >= e)) || (f[w.media] || (f[w.media] = []), f[w.media].push(m[w.rules])) } for (var C in n) n.hasOwnProperty(C) && n[C] && n[C].parentNode === q && q.removeChild(n[C]); n.length = 0; for (var D in f) if (f.hasOwnProperty(D)) { var E = j.createElement("style"), F = f[D].join("\n"); E.type = "text/css", E.media = D, q.insertBefore(E, o.nextSibling), E.styleSheet ? E.styleSheet.cssText = F : E.appendChild(j.createTextNode(F)), n.push(E) } }, v = function (a, b, d) { var e = a.replace(c.regex.keyframes, "").match(c.regex.media), f = e && e.length || 0; b = b.substring(0, b.lastIndexOf("/")); var g = function (a) { return a.replace(c.regex.urls, "$1" + b + "$2$3") }, h = !f && d; b.length && (b += "/"), h && (f = 1); for (var i = 0; f > i; i++) { var j, k, n, o; h ? (j = d, m.push(g(a))) : (j = e[i].match(c.regex.findStyles) && RegExp.$1, m.push(RegExp.$2 && g(RegExp.$2))), n = j.split(","), o = n.length; for (var p = 0; o > p; p++) k = n[p], l.push({ media: k.split("(")[0].match(c.regex.only) && RegExp.$2 || "all", rules: m.length - 1, hasquery: k.indexOf("(") > -1, minw: k.match(c.regex.minw) && parseFloat(RegExp.$1) + (RegExp.$2 || ""), maxw: k.match(c.regex.maxw) && parseFloat(RegExp.$1) + (RegExp.$2 || "") }) } u() }, w = function () { if (d.length) { var b = d.shift(); f(b.href, function (c) { v(c, b.href, b.media), o[b.href] = !0, a.setTimeout(function () { w() }, 0) }) } }, x = function () { for (var b = 0; b < s.length; b++) { var c = s[b], e = c.href, f = c.media, g = c.rel && "stylesheet" === c.rel.toLowerCase(); e && g && !o[e] && (c.styleSheet && c.styleSheet.rawCssText ? (v(c.styleSheet.rawCssText, e, f), o[e] = !0) : (!/^([a-zA-Z:]*\/\/)/.test(e) && !r || e.replace(RegExp.$1, "").split("/")[0] === a.location.host) && ("//" === e.substring(0, 2) && (e = a.location.protocol + e), d.push({ href: e, media: f }))) } w() }; x(), c.update = x, c.getEmValue = t, a.addEventListener ? a.addEventListener("resize", b, !1) : a.attachEvent && a.attachEvent("onresize", b) } }(this);
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