mirror of
https://github.com/adulau/brouilleursdeblanc.git
synced 2024-11-07 12:06:26 +00:00
342 lines
No EOL
9.5 KiB
JavaScript
342 lines
No EOL
9.5 KiB
JavaScript
/*! matchMedia() polyfill - Test a CSS media type/query in JS. Authors & copyright (c) 2012: Scott Jehl, Paul Irish, Nicholas Zakas. Dual MIT/BSD license */
|
|
/*! NOTE: If you're already including a window.matchMedia polyfill via Modernizr or otherwise, you don't need this part */
|
|
|
|
window.matchMedia = window.matchMedia || (function( doc, undefined ) {
|
|
|
|
"use strict";
|
|
|
|
var bool,
|
|
docElem = doc.documentElement,
|
|
refNode = docElem.firstElementChild || docElem.firstChild,
|
|
// fakeBody required for <FF4 when executed in <head>
|
|
fakeBody = doc.createElement( "body" ),
|
|
div = doc.createElement( "div" );
|
|
|
|
div.id = "mq-test-1";
|
|
div.style.cssText = "position:absolute;top:-100em";
|
|
fakeBody.style.background = "none";
|
|
fakeBody.appendChild(div);
|
|
|
|
return function(q){
|
|
|
|
div.innerHTML = "­<style media=\"" + q + "\"> #mq-test-1 { width: 42px; }</style>";
|
|
|
|
docElem.insertBefore( fakeBody, refNode );
|
|
bool = div.offsetWidth === 42;
|
|
docElem.removeChild( fakeBody );
|
|
|
|
return {
|
|
matches: bool,
|
|
media: q
|
|
};
|
|
|
|
};
|
|
|
|
}( document ));
|
|
|
|
|
|
|
|
|
|
|
|
/*! Respond.js v1.1.0: min/max-width media query polyfill. (c) Scott Jehl. MIT/GPLv2 Lic. j.mp/respondjs */
|
|
(function( win ){
|
|
|
|
"use strict";
|
|
|
|
//exposed namespace
|
|
var respond = {};
|
|
win.respond = respond;
|
|
|
|
//define update even in native-mq-supporting browsers, to avoid errors
|
|
respond.update = function(){};
|
|
|
|
//expose media query support flag for external use
|
|
respond.mediaQueriesSupported = win.matchMedia && win.matchMedia( "only all" ).matches;
|
|
|
|
//if media queries are supported, exit here
|
|
if( respond.mediaQueriesSupported ){
|
|
return;
|
|
}
|
|
|
|
//define vars
|
|
var doc = win.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" ),
|
|
requestQueue = [],
|
|
|
|
//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] === win.location.host ){
|
|
requestQueue.push( {
|
|
href: href,
|
|
media: media
|
|
} );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
makeRequests();
|
|
},
|
|
|
|
//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
|
|
win.setTimeout(function(){ makeRequests(); },0);
|
|
} );
|
|
}
|
|
},
|
|
|
|
//find media blocks in css text, convert to style blocks
|
|
translate = function( styles, href, media ){
|
|
var qs = styles.match( /@media[^\{]+\{([^\{\}]*\{[^\}\{]*\})+/gi ),
|
|
ql = qs && qs.length || 0;
|
|
|
|
//try to get CSS path
|
|
href = href.substring( 0, href.lastIndexOf( "/" ) );
|
|
|
|
var repUrls = function( css ){
|
|
return css.replace( /(url\()['"]?([^\/\)'"][^:\)'"]+)['"]?(\))/g, "$1" + href + "$2$3" );
|
|
},
|
|
useMedia = !ql && media;
|
|
|
|
//if path exists, tack on trailing slash
|
|
if( href.length ){ href += "/"; }
|
|
|
|
//if no internal queries exist, but media attr does, use that
|
|
//note: this currently lacks support for situations where a media attr is specified on a link AND
|
|
//its associated stylesheet has internal CSS media queries.
|
|
//In those cases, the media attribute will currently be ignored.
|
|
if( useMedia ){
|
|
ql = 1;
|
|
}
|
|
|
|
for( var i = 0; i < ql; i++ ){
|
|
var fullq, thisq, eachq, eql;
|
|
|
|
//media attr
|
|
if( useMedia ){
|
|
fullq = media;
|
|
rules.push( repUrls( styles ) );
|
|
}
|
|
//parse for styles
|
|
else{
|
|
fullq = qs[ i ].match( /@media *([^\{]+)\{([\S\s]+?)$/ ) && 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 ];
|
|
mediastyles.push( {
|
|
media : thisq.split( "(" )[ 0 ].match( /(only\s+)?([a-zA-Z]+)\s?/ ) && RegExp.$2 || "all",
|
|
rules : rules.length - 1,
|
|
hasquery : thisq.indexOf("(") > -1,
|
|
minw : thisq.match( /\(\s*min\-width\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/ ) && parseFloat( RegExp.$1 ) + ( RegExp.$2 || "" ),
|
|
maxw : thisq.match( /\(\s*max\-width\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/ ) && parseFloat( RegExp.$1 ) + ( RegExp.$2 || "" )
|
|
} );
|
|
}
|
|
}
|
|
|
|
applyMedia();
|
|
},
|
|
|
|
lastCall,
|
|
|
|
resizeDefer,
|
|
|
|
// returns the value of 1em in pixels
|
|
getEmValue = function() {
|
|
var ret,
|
|
div = doc.createElement('div'),
|
|
body = doc.body,
|
|
fakeUsed = false;
|
|
|
|
div.style.cssText = "position:absolute;font-size:1em;width:1em";
|
|
|
|
if( !body ){
|
|
body = fakeUsed = doc.createElement( "body" );
|
|
body.style.background = "none";
|
|
}
|
|
|
|
body.appendChild( div );
|
|
|
|
docElem.insertBefore( body, docElem.firstChild );
|
|
|
|
ret = div.offsetWidth;
|
|
|
|
if( fakeUsed ){
|
|
docElem.removeChild( body );
|
|
}
|
|
else {
|
|
body.removeChild( div );
|
|
}
|
|
|
|
//also update eminpx before returning
|
|
ret = eminpx = parseFloat(ret);
|
|
|
|
return ret;
|
|
},
|
|
|
|
//cached container for 1em value, populated the first time it's needed
|
|
eminpx,
|
|
|
|
//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 ){
|
|
win.clearTimeout( resizeDefer );
|
|
resizeDefer = win.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 ] );
|
|
}
|
|
}
|
|
}
|
|
|
|
//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 );
|
|
}
|
|
}
|
|
},
|
|
//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 );
|
|
},
|
|
//define ajax obj
|
|
xmlHttp = (function() {
|
|
var xmlhttpmethod = false;
|
|
try {
|
|
xmlhttpmethod = new win.XMLHttpRequest();
|
|
}
|
|
catch( e ){
|
|
xmlhttpmethod = new win.ActiveXObject( "Microsoft.XMLHTTP" );
|
|
}
|
|
return function(){
|
|
return xmlhttpmethod;
|
|
};
|
|
})();
|
|
|
|
//translate CSS
|
|
ripCSS();
|
|
|
|
//expose update for re-running respond later on
|
|
respond.update = ripCSS;
|
|
|
|
//adjust on resize
|
|
function callMedia(){
|
|
applyMedia( true );
|
|
}
|
|
if( win.addEventListener ){
|
|
win.addEventListener( "resize", callMedia, false );
|
|
}
|
|
else if( win.attachEvent ){
|
|
win.attachEvent( "onresize", callMedia );
|
|
}
|
|
})(this); |