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Merge pull request #127 from Shopify/respond-js
Added media query support to oldIE with respond.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| <!-- Respond.js: min/max-width media query polyfill. Remote proxy (c) Scott Jehl. MIT/GPLv2 Lic. j.mp/respondjs --> | ||
| <!DOCTYPE html> | ||
| <html> | ||
| <head> | ||
| <meta charset="utf-8" /> | ||
| <title>Respond JS Proxy</title> | ||
| </head> | ||
| <body> | ||
| <script> | ||
| (function () { | ||
| var domain, css, query, getQueryString, ajax, xmlHttp; | ||
|
|
||
| /* | ||
| http://stackoverflow.com/questions/4963673/get-url-array-variables-in-javascript-jquery/4963817#4963817 | ||
| */ | ||
| getQueryString = function() { | ||
| var ret = {}, parts, i, p; | ||
|
|
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| parts = (document.location.toString().split("?")[1]).split("&"); | ||
|
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| for (i = 0; i < parts.length; i++) { | ||
|
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| p = parts[i].split("="); | ||
| // so strings will be correctly parsed: | ||
| p[1] = decodeURIComponent(p[1].replace(/\+/g, " ")); | ||
|
|
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| if (p[0].search(/\[\]/) >= 0) { // then it"s an array | ||
| p[0] = p[0].replace("[]", ""); | ||
|
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| if (typeof ret[p[0]] != "object") { | ||
| ret[p[0]] = []; | ||
| } | ||
| ret[p[0]].push(p[1]); | ||
| } else { | ||
| ret[p[0]] = p[1]; | ||
| } | ||
| } | ||
| return ret; | ||
| }; | ||
|
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||
| ajax = function( url, callback ) { | ||
| var req = xmlHttp(); | ||
| if (!req){ | ||
| return; | ||
| } | ||
| req.open( "GET", url, true ); | ||
| req.onreadystatechange = function () { | ||
| if ( req.readyState != 4 || req.status != 200 && req.status != 304 ){ | ||
| return; | ||
| } | ||
| callback( req.responseText ); | ||
| }; | ||
| if ( req.readyState == 4 ){ | ||
| return; | ||
| } | ||
| req.send(); | ||
| }; | ||
|
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||
| //define ajax obj | ||
| xmlHttp = (function() { | ||
| var xmlhttpmethod = false, | ||
| attempts = [ | ||
| function(){ return new XMLHttpRequest(); }, | ||
| function(){ return new ActiveXObject("Microsoft.XMLHTTP"); }, | ||
| function(){ return new ActiveXObject("MSXML2.XMLHTTP.3.0"); } | ||
| ], | ||
| al = attempts.length; | ||
|
|
||
| while( al-- ){ | ||
| try { | ||
| xmlhttpmethod = attempts[ al ](); | ||
| } | ||
| catch(e) { | ||
| continue; | ||
| } | ||
| break; | ||
| } | ||
| return function(){ | ||
| return xmlhttpmethod; | ||
| }; | ||
| })(); | ||
|
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| query = getQueryString(); | ||
| css = query["css"]; | ||
| domain = query["url"]; | ||
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| if (css && domain) { | ||
| ajax(css, function (response) { | ||
| window.name = response; | ||
| window.location.href = domain; | ||
| }); | ||
| } | ||
| }()); | ||
| </script> | ||
| </body> | ||
| </html> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| /*! Respond.js: min/max-width media query polyfill. Remote proxy (c) Scott Jehl. MIT/GPLv2 Lic. j.mp/respondjs */ | ||
| (function(win, doc, undefined){ | ||
| var docElem = doc.documentElement, | ||
| proxyURL = doc.getElementById("respond-proxy").href, | ||
| redirectURL = (doc.getElementById("respond-redirect") || location).href, | ||
| baseElem = doc.getElementsByTagName("base")[0], | ||
| urls = [], | ||
| refNode; | ||
|
|
||
| function encode(url){ | ||
| return win.encodeURIComponent(url); | ||
| } | ||
|
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||
| function fakejax( url, callback ){ | ||
|
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| var iframe, | ||
| AXO; | ||
|
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||
| // All hail Google http://j.mp/iKMI19 | ||
| // Behold, an iframe proxy without annoying clicky noises. | ||
| if ( "ActiveXObject" in win ) { | ||
| AXO = new ActiveXObject( "htmlfile" ); | ||
| AXO.open(); | ||
| AXO.write( '<iframe id="x"></iframe>' ); | ||
| AXO.close(); | ||
| iframe = AXO.getElementById( "x" ); | ||
| } else { | ||
| iframe = doc.createElement( "iframe" ); | ||
| iframe.style.cssText = "position:absolute;top:-99em"; | ||
| docElem.insertBefore(iframe, docElem.firstElementChild || docElem.firstChild ); | ||
| } | ||
|
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| iframe.src = checkBaseURL(proxyURL) + "?url=" + encode(redirectURL) + "&css=" + encode(checkBaseURL(url)); | ||
|
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| function checkFrameName() { | ||
| var cssText; | ||
|
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| try { | ||
| cssText = iframe.contentWindow.name; | ||
| } | ||
| catch (e) { } | ||
|
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||
| if (cssText) { | ||
| // We've got what we need. Stop the iframe from loading further content. | ||
| iframe.src = "about:blank"; | ||
| iframe.parentNode.removeChild(iframe); | ||
| iframe = null; | ||
|
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||
|
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| // Per http://j.mp/kn9EPh, not taking any chances. Flushing the ActiveXObject | ||
| if (AXO) { | ||
| AXO = null; | ||
|
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| if (win.CollectGarbage) { | ||
| win.CollectGarbage(); | ||
| } | ||
| } | ||
|
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| callback(cssText); | ||
| } | ||
| else{ | ||
| win.setTimeout(checkFrameName, 100); | ||
| } | ||
| } | ||
|
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| win.setTimeout(checkFrameName, 500); | ||
| } | ||
|
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| // http://stackoverflow.com/a/472729 | ||
| function checkBaseURL(href) { | ||
| var el = document.createElement('div'), | ||
| escapedURL = href.split('&').join('&'). | ||
| split('<').join('<'). | ||
| split('"').join('"'); | ||
|
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| el.innerHTML = '<a href="' + escapedURL + '">x</a>'; | ||
| return el.firstChild.href; | ||
| } | ||
|
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| function checkRedirectURL() { | ||
| // IE6 & IE7 don't build out absolute urls in <link /> attributes. | ||
| // So respond.proxy.gif remains relative instead of http://example.com/respond.proxy.gif. | ||
| // This trickery resolves that issue. | ||
| if (~ !redirectURL.indexOf(location.host)) { | ||
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| var fakeLink = doc.createElement("div"); | ||
|
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| fakeLink.innerHTML = '<a href="' + redirectURL + '"></a>'; | ||
| docElem.insertBefore(fakeLink, docElem.firstElementChild || docElem.firstChild ); | ||
|
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| // Grab the parsed URL from that dummy object | ||
| redirectURL = fakeLink.firstChild.href; | ||
|
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| // Clean up | ||
| fakeLink.parentNode.removeChild(fakeLink); | ||
| fakeLink = null; | ||
| } | ||
| } | ||
|
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| function buildUrls(){ | ||
| var links = doc.getElementsByTagName( "link" ); | ||
|
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| for( var i = 0, linkl = links.length; i < linkl; i++ ){ | ||
|
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| var thislink = links[i], | ||
| href = links[i].href, | ||
| extreg = (/^([a-zA-Z:]*\/\/(www\.)?)/).test( href ), | ||
| ext = (baseElem && !extreg) || extreg; | ||
|
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| //make sure it's an external stylesheet | ||
| if( thislink.rel.indexOf( "stylesheet" ) >= 0 && ext ){ | ||
| (function( link ){ | ||
| fakejax( href, function( css ){ | ||
| link.styleSheet.rawCssText = css; | ||
| respond.update(); | ||
| } ); | ||
| })( thislink ); | ||
| } | ||
| } | ||
|
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|
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| } | ||
|
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| if( !respond.mediaQueriesSupported ){ | ||
| checkRedirectURL(); | ||
| buildUrls(); | ||
| } | ||
|
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||
| })( window, document ); |
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