summaryrefslogtreecommitdiff
path: root/js/respond.js
diff options
context:
space:
mode:
authoruvok cheetah2019-05-21 20:47:11 +0200
committeruvok cheetah2019-05-23 17:59:42 +0200
commit701a8c01fef8408418850dcbbe4cf42de1088c1e (patch)
treebb569078e2a2aa61d653c9e87cc0733950a7de96 /js/respond.js
parent7b3170100da98fc8e4dc52d3bbe4c8af422c1b8a (diff)
"Restart" project: switch to minima theme via Gemfile
undoing my modifications
Diffstat (limited to 'js/respond.js')
-rw-r--r--js/respond.js353
1 files changed, 0 insertions, 353 deletions
diff --git a/js/respond.js b/js/respond.js
deleted file mode 100644
index 58883e4..0000000
--- a/js/respond.js
+++ /dev/null
@@ -1,353 +0,0 @@
-/* Respond.js: min/max-width media query polyfill. (c) Scott Jehl. MIT Lic. j.mp/respondjs */
-(function( w ){
-
- "use strict";
-
- //exposed namespace
- var respond = {};
- w.respond = respond;
-
- //define update even in native-mq-supporting browsers, to avoid errors
- respond.update = function(){};
-
- //define ajax obj
- var requestQueue = [],
- xmlHttp = (function() {
- var xmlhttpmethod = false;
- try {
- xmlhttpmethod = new w.XMLHttpRequest();
- }
- catch( e ){
- xmlhttpmethod = new w.ActiveXObject( "Microsoft.XMLHTTP" );
- }
- return function(){
- return xmlhttpmethod;
- };
- })(),
-
- //tweaked Ajax functions from Quirksmode
- 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( null );
- },
- isUnsupportedMediaQuery = function( query ) {
- return query.replace( respond.regex.minmaxwh, '' ).match( respond.regex.other );
- };
-
- //expose for testing
- respond.ajax = ajax;
- respond.queue = requestQueue;
- respond.unsupportedmq = isUnsupportedMediaQuery;
- respond.regex = {
- media: /@media[^\{]+\{([^\{\}]*\{[^\}\{]*\})+/gi,
- keyframes: /@(?:\-(?:o|moz|webkit)\-)?keyframes[^\{]+\{(?:[^\{\}]*\{[^\}\{]*\})+[^\}]*\}/gi,
- comments: /\/\*[^*]*\*+([^/][^*]*\*+)*\//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: /\(\s*max\-width\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/,
- minmaxwh: /\(\s*m(in|ax)\-(height|width)\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/gi,
- other: /\([^\)]*\)/g
- };
-
- //expose media query support flag for external use
- respond.mediaQueriesSupported = w.matchMedia && w.matchMedia( "only all" ) !== null && w.matchMedia( "only all" ).matches;
-
- //if media queries are supported, exit here
- if( respond.mediaQueriesSupported ){
- return;
- }
-
- //define vars
- 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,
-
- //cached container for 1em value, populated the first time it's needed
- eminpx,
-
- // returns the value of 1em in pixels
- getEmValue = function() {
- var ret,
- div = doc.createElement('div'),
- body = doc.body,
- originalHTMLFontSize = docElem.style.fontSize,
- originalBodyFontSize = body && body.style.fontSize,
- fakeUsed = false;
-
- div.style.cssText = "position:absolute;font-size:1em;width:1em";
-
- if( !body ){
- body = fakeUsed = doc.createElement( "body" );
- body.style.background = "none";
- }
-
- // 1em in a media query is the value of the default font size of the browser
- // reset docElem and body to ensure the correct value is returned
- docElem.style.fontSize = "100%";
- body.style.fontSize = "100%";
-
- body.appendChild( div );
-
- if( fakeUsed ){
- docElem.insertBefore( body, docElem.firstChild );
- }
-
- ret = div.offsetWidth;
-
- if( fakeUsed ){
- docElem.removeChild( body );
- }
- else {
- body.removeChild( div );
- }
-
- // restore the original values
- docElem.style.fontSize = originalHTMLFontSize;
- if( originalBodyFontSize ) {
- body.style.fontSize = originalBodyFontSize;
- }
-
-
- //also update eminpx before returning
- ret = eminpx = parseFloat(ret);
-
- return ret;
- },
-
- //enable/disable styles
- applyMedia = function( fromResize ){
- 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();
-
- //throttle resize calls
- if( fromResize && lastCall && now - lastCall < resizeThrottle ){
- w.clearTimeout( resizeDefer );
- resizeDefer = w.setTimeout( applyMedia, resizeThrottle );
- return;
- }
- else {
- lastCall = now;
- }
-
- for( var i in mediastyles ){
- if( mediastyles.hasOwnProperty( i ) ){
- var thisstyle = mediastyles[ i ],
- min = thisstyle.minw,
- max = thisstyle.maxw,
- minnull = min === null,
- maxnull = max === null,
- em = "em";
-
- if( !!min ){
- min = parseFloat( min ) * ( min.indexOf( em ) > -1 ? ( eminpx || getEmValue() ) : 1 );
- }
- if( !!max ){
- max = parseFloat( max ) * ( max.indexOf( em ) > -1 ? ( eminpx || getEmValue() ) : 1 );
- }
-
- // if there's no media query at all (the () part), or min or max is not null, and if either is present, they're true
- if( !thisstyle.hasquery || ( !minnull || !maxnull ) && ( minnull || currWidth >= min ) && ( maxnull || currWidth <= max ) ){
- if( !styleBlocks[ thisstyle.media ] ){
- styleBlocks[ thisstyle.media ] = [];
- }
- styleBlocks[ thisstyle.media ].push( rules[ thisstyle.rules ] );
- }
- }
- }
-
- //remove any existing respond style element(s)
- for( var j in appendedEls ){
- if( appendedEls.hasOwnProperty( j ) ){
- if( appendedEls[ j ] && appendedEls[ j ].parentNode === head ){
- head.removeChild( appendedEls[ j ] );
- }
- }
- }
- appendedEls.length = 0;
-
- //inject active styles, grouped by media type
- for( var k in styleBlocks ){
- if( styleBlocks.hasOwnProperty( k ) ){
- var ss = doc.createElement( "style" ),
- css = styleBlocks[ k ].join( "\n" );
-
- ss.type = "text/css";
- ss.media = k;
-
- //originally, ss was appended to a documentFragment and sheets were appended in bulk.
- //this caused crashes in IE in a number of circumstances, such as when the HTML element had a bg image set, so appending beforehand seems best. Thanks to @dvelyk for the initial research on this one!
- head.insertBefore( ss, lastLink.nextSibling );
-
- if ( ss.styleSheet ){
- ss.styleSheet.cssText = css;
- }
- else {
- ss.appendChild( doc.createTextNode( css ) );
- }
-
- //push to appendedEls to track for later removal
- appendedEls.push( ss );
- }
- }
- },
- //find media blocks in css text, convert to style blocks
- translate = function( styles, href, media ){
- var qs = styles.replace( respond.regex.comments, '' )
- .replace( respond.regex.keyframes, '' )
- .match( respond.regex.media ),
- ql = qs && qs.length || 0;
-
- //try to get CSS path
- href = href.substring( 0, href.lastIndexOf( "/" ) );
-
- var repUrls = function( css ){
- return css.replace( respond.regex.urls, "$1" + href + "$2$3" );
- },
- useMedia = !ql && media;
-
- //if path exists, tack on trailing slash
- if( href.length ){ href += "/"; }
-
- //if no internal queries exist, but media attr does, use that
- //note: this currently lacks support for situations where a media attr is specified on a link AND
- //its associated stylesheet has internal CSS media queries.
- //In those cases, the media attribute will currently be ignored.
- if( useMedia ){
- ql = 1;
- }
-
- for( var i = 0; i < ql; i++ ){
- var fullq, thisq, eachq, eql;
-
- //media attr
- if( useMedia ){
- fullq = media;
- rules.push( repUrls( styles ) );
- }
- //parse for styles
- else{
- fullq = qs[ i ].match( respond.regex.findStyles ) && RegExp.$1;
- rules.push( RegExp.$2 && repUrls( RegExp.$2 ) );
- }
-
- eachq = fullq.split( "," );
- eql = eachq.length;
-
- for( var j = 0; j < eql; j++ ){
- thisq = eachq[ j ];
-
- if( isUnsupportedMediaQuery( thisq ) ) {
- continue;
- }
-
- mediastyles.push( {
- media : thisq.split( "(" )[ 0 ].match( respond.regex.only ) && RegExp.$2 || "all",
- rules : rules.length - 1,
- hasquery : thisq.indexOf("(") > -1,
- minw : thisq.match( respond.regex.minw ) && parseFloat( RegExp.$1 ) + ( RegExp.$2 || "" ),
- maxw : thisq.match( respond.regex.maxw ) && parseFloat( RegExp.$1 ) + ( RegExp.$2 || "" )
- } );
- }
- }
-
- applyMedia();
- },
-
- //recurse through request queue, get css text
- makeRequests = function(){
- if( requestQueue.length ){
- var thisRequest = requestQueue.shift();
-
- ajax( thisRequest.href, function( styles ){
- translate( styles, thisRequest.href, thisRequest.media );
- parsedSheets[ thisRequest.href ] = true;
-
- // by wrapping recursive function call in setTimeout
- // we prevent "Stack overflow" error in IE7
- w.setTimeout(function(){ makeRequests(); },0);
- } );
- }
- },
-
- //loop stylesheets, send text content to translate
- ripCSS = function(){
-
- for( var i = 0; i < links.length; i++ ){
- var sheet = links[ i ],
- href = sheet.href,
- media = sheet.media,
- isCSS = sheet.rel && sheet.rel.toLowerCase() === "stylesheet";
-
- //only links plz and prevent re-parsing
- if( !!href && isCSS && !parsedSheets[ href ] ){
- // selectivizr exposes css through the rawCssText expando
- if (sheet.styleSheet && sheet.styleSheet.rawCssText) {
- translate( sheet.styleSheet.rawCssText, href, media );
- parsedSheets[ href ] = true;
- } else {
- if( (!/^([a-zA-Z:]*\/\/)/.test( href ) && !base) ||
- href.replace( RegExp.$1, "" ).split( "/" )[0] === w.location.host ){
- // IE7 doesn't handle urls that start with '//' for ajax request
- // manually add in the protocol
- if ( href.substring(0,2) === "//" ) { href = w.location.protocol + href; }
- requestQueue.push( {
- href: href,
- media: media
- } );
- }
- }
- }
- }
- makeRequests();
- };
-
- //translate CSS
- ripCSS();
-
- //expose update for re-running respond later on
- respond.update = ripCSS;
-
- //expose getEmValue
- respond.getEmValue = getEmValue;
-
- //adjust on resize
- function callMedia(){
- applyMedia( true );
- }
-
- if( w.addEventListener ){
- w.addEventListener( "resize", callMedia, false );
- }
- else if( w.attachEvent ){
- w.attachEvent( "onresize", callMedia );
- }
-})(this);