https://kupinomuseum.ru/wp-content/themes/pen/assets/js/plugins/respond.js?ver=1.4.2

1/*! Respond.js v1.4.2: min/max-width media query polyfill
2 * Copyright 2014 Scott Jehl
3 * Licensed under MIT
4 * https://j.mp/respondjs */
5
6/*! matchMedia() polyfill - Test a CSS media type/query in JS. Authors & copyright (c) 2012: Scott Jehl, Paul Irish, Nicholas Zakas. Dual MIT/BSD license */
7/*! NOTE: If you're already including a window.matchMedia polyfill via Modernizr or otherwise, you don't need this part */
8(function(w) {
9	"use strict";
10	w.matchMedia = w.matchMedia || function(doc, undefined) {
11		var bool, docElem = doc.documentElement, refNode = docElem.firstElementChild || docElem.firstChild, fakeBody = doc.createElement("body"), div = doc.createElement("div");
12		div.id = "mq-test-1";
13		div.style.cssText = "position:absolute;top:-100em";
14		fakeBody.style.background = "none";
15		fakeBody.appendChild(div);
16		return function(q) {
17			div.innerHTML = '&shy;<style media="' + q + '"> #mq-test-1 { width: 42px; }</style>';
18			docElem.insertBefore(fakeBody, refNode);
19			bool = div.offsetWidth === 42;
20			docElem.removeChild(fakeBody);
21			return {
22				matches: bool,
23				media: q
24			};
25		};
26	}(w.document);
27})(this);
28
29(function(w) {
30	"use strict";
31	var respond = {};
32	w.respond = respond;
33	respond.update = function() {};
34	var requestQueue = [], xmlHttp = function() {
35		var xmlhttpmethod = false;
36		try {
37			xmlhttpmethod = new w.XMLHttpRequest();
38		} catch (e) {
39			xmlhttpmethod = new w.ActiveXObject("Microsoft.XMLHTTP");
40		}
41		return function() {
42			return xmlhttpmethod;
43		};
44	}(), ajax = function(url, callback) {
45		var req = xmlHttp();
46		if (!req) {
47			return;
48		}
49		req.open("GET", url, true);
50		req.onreadystatechange = function() {
51			if (req.readyState !== 4 || req.status !== 200 && req.status !== 304) {
52				return;
53			}
54			callback(req.responseText);
55		};
56		if (req.readyState === 4) {
57			return;
58		}
59		req.send(null);
60	}, isUnsupportedMediaQuery = function(query) {
61		return query.replace(respond.regex.minmaxwh, "").match(respond.regex.other);
62	};
63	respond.ajax = ajax;
64	respond.queue = requestQueue;
65	respond.unsupportedmq = isUnsupportedMediaQuery;
66	respond.regex = {
67		media: /@media[^\{]+\{([^\{\}]*\{[^\}\{]*\})+/gi,
68		keyframes: /@(?:\-(?:o|moz|webkit)\-)?keyframes[^\{]+\{(?:[^\{\}]*\{[^\}\{]*\})+[^\}]*\}/gi,
69		comments: /\/\*[^*]*\*+([^/][^*]*\*+)*\//gi,
70		urls: /(url\()['"]?([^\/\)'"][^:\)'"]+)['"]?(\))/g,
71		findStyles: /@media *([^\{]+)\{([\S\s]+?)$/,
72		only: /(only\s+)?([a-zA-Z]+)\s?/,
73		minw: /\(\s*min\-width\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/,
74		maxw: /\(\s*max\-width\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/,
75		minmaxwh: /\(\s*m(in|ax)\-(height|width)\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/gi,
76		other: /\([^\)]*\)/g
77	};
78	respond.mediaQueriesSupported = w.matchMedia && w.matchMedia("only all") !== null && w.matchMedia("only all").matches;
79	if (respond.mediaQueriesSupported) {
80		return;
81	}
82	var doc = w.document, docElem = doc.documentElement, mediastyles = [], rules = [], appendedEls = [], parsedSheets = {}, resizeThrottle = 30, head = doc.getElementsByTagName("head")[0] || docElem, base = doc.getElementsByTagName("base")[0], links = head.getElementsByTagName("link"), lastCall, resizeDefer, eminpx, getEmValue = function() {
83		var ret, div = doc.createElement("div"), body = doc.body, originalHTMLFontSize = docElem.style.fontSize, originalBodyFontSize = body && body.style.fontSize, fakeUsed = false;
84		div.style.cssText = "position:absolute;font-size:1em;width:1em";
85		if (!body) {
86			body = fakeUsed = doc.createElement("body");
87			body.style.background = "none";
88		}
89		docElem.style.fontSize = "100%";
90		body.style.fontSize = "100%";
91		body.appendChild(div);
92		if (fakeUsed) {
93			docElem.insertBefore(body, docElem.firstChild);
94		}
95		ret = div.offsetWidth;
96		if (fakeUsed) {
97			docElem.removeChild(body);
98		} else {
99			body.removeChild(div);
100		}
101		docElem.style.fontSize = originalHTMLFontSize;
102		if (originalBodyFontSize) {
103			body.style.fontSize = originalBodyFontSize;
104		}
105		ret = eminpx = parseFloat(ret);
106		return ret;
107	}, applyMedia = function(fromResize) {
108		var name = "clientWidth", docElemProp = docElem[name], currWidth = doc.compatMode === "CSS1Compat" && docElemProp || doc.body[name] || docElemProp, styleBlocks = {}, lastLink = links[links.length - 1], now = new Date().getTime();
109		if (fromResize && lastCall && now - lastCall < resizeThrottle) {
110			w.clearTimeout(resizeDefer);
111			resizeDefer = w.setTimeout(applyMedia, resizeThrottle);
112			return;
113		} else {

114			lastCall = now;
115		}
116		for (var i in mediastyles) {
117			if (mediastyles.hasOwnProperty(i)) {
118				var thisstyle = mediastyles[i], min = thisstyle.minw, max = thisstyle.maxw, minnull = min === null, maxnull = max === null, em = "em";
119				if (!!min) {
120					min = parseFloat(min) * (min.indexOf(em) > -1 ? eminpx || getEmValue() : 1);
121				}
122				if (!!max) {
123					max = parseFloat(max) * (max.indexOf(em) > -1 ? eminpx || getEmValue() : 1);
124				}
125				if (!thisstyle.hasquery || (!minnull || !maxnull) && (minnull || currWidth >= min) && (maxnull || currWidth <= max)) {
126					if (!styleBlocks[thisstyle.media]) {
127						styleBlocks[thisstyle.media] = [];
128					}
129					styleBlocks[thisstyle.media].push(rules[thisstyle.rules]);
130				}
131			}
132		}
133		for (var j in appendedEls) {
134			if (appendedEls.hasOwnProperty(j)) {
135				if (appendedEls[j] && appendedEls[j].parentNode === head) {
136					head.removeChild(appendedEls[j]);
137				}
138			}
139		}
140		appendedEls.length = 0;
141		for (var k in styleBlocks) {
142			if (styleBlocks.hasOwnProperty(k)) {
143				var ss = doc.createElement("style"), css = styleBlocks[k].join("\n");
144				ss.type = "text/css";
145				ss.media = k;
146				head.insertBefore(ss, lastLink.nextSibling);
147				if (ss.styleSheet) {
148					ss.styleSheet.cssText = css;
149				} else {
150					ss.appendChild(doc.createTextNode(css));
151				}
152				appendedEls.push(ss);
153			}
154		}
155	}, translate = function(styles, href, media) {
156		var qs = styles.replace(respond.regex.comments, "").replace(respond.regex.keyframes, "").match(respond.regex.media), ql = qs && qs.length || 0;
157		href = href.substring(0, href.lastIndexOf("/"));
158		var repUrls = function(css) {
159			return css.replace(respond.regex.urls, "$1" + href + "$2$3");
160		}, useMedia = !ql && media;
161		if (href.length) {
162			href += "/";
163		}
164		if (useMedia) {
165			ql = 1;
166		}
167		for (var i = 0; i < ql; i++) {
168			var fullq, thisq, eachq, eql;
169			if (useMedia) {
170				fullq = media;
171				rules.push(repUrls(styles));
172			} else {
173				fullq = qs[i].match(respond.regex.findStyles) && RegExp.$1;
174				rules.push(RegExp.$2 && repUrls(RegExp.$2));
175			}
176			eachq = fullq.split(",");
177			eql = eachq.length;
178			for (var j = 0; j < eql; j++) {
179				thisq = eachq[j];
180				if (isUnsupportedMediaQuery(thisq)) {
181					continue;
182				}
183				mediastyles.push({
184					media: thisq.split("(")[0].match(respond.regex.only) && RegExp.$2 || "all",
185					rules: rules.length - 1,
186					hasquery: thisq.indexOf("(") > -1,
187					minw: thisq.match(respond.regex.minw) && parseFloat(RegExp.$1) + (RegExp.$2 || ""),
188					maxw: thisq.match(respond.regex.maxw) && parseFloat(RegExp.$1) + (RegExp.$2 || "")
189				});
190			}
191		}
192		applyMedia();
193	}, makeRequests = function() {
194		if (requestQueue.length) {
195			var thisRequest = requestQueue.shift();
196			ajax(thisRequest.href, function(styles) {
197				translate(styles, thisRequest.href, thisRequest.media);
198				parsedSheets[thisRequest.href] = true;
199				w.setTimeout(function() {
200					makeRequests();
201				}, 0);
202			});
203		}
204	}, ripCSS = function() {
205		for (var i = 0; i < links.length; i++) {
206			var sheet = links[i], href = sheet.href, media = sheet.media, isCSS = sheet.rel && sheet.rel.toLowerCase() === "stylesheet";
207			if (!!href && isCSS && !parsedSheets[href]) {
208				if (sheet.styleSheet && sheet.styleSheet.rawCssText) {
209					translate(sheet.styleSheet.rawCssText, href, media);
210					parsedSheets[href] = true;
211				} else {
212					if (!/^([a-zA-Z:]*\/\/)/.test(href) && !base || href.replace(RegExp.$1, "").split("/")[0] === w.location.host) {
213						if (href.substring(0, 2) === "//") {
214							href = w.location.protocol + href;
215						}
216						requestQueue.push({
217							href: href,
218							media: media
219						});
220					}
221				}
222			}
223		}
224		makeRequests();
225	};
226	ripCSS();
227	respond.update = ripCSS;
228	respond.getEmValue = getEmValue;
229	function callMedia() {
230		applyMedia(true);
231	}
232	if (w.addEventListener) {
233		w.addEventListener("resize", callMedia, false);
234	} else if (w.attachEvent) {
235		w.attachEvent("onresize", callMedia);
236	}
237})(this);