422 lines
9.5 KiB
JavaScript
422 lines
9.5 KiB
JavaScript
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/**
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* StyleFix 1.0.1
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* @author Lea Verou
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* MIT license
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*/
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(function(){
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if(!window.addEventListener) {
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return;
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}
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var self = window.StyleFix = {
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link: function(link) {
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try {
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// Ignore stylesheets with data-noprefix attribute as well as alternate stylesheets
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if(link.rel !== 'stylesheet' || !link.sheet.cssRules || link.hasAttribute('data-noprefix')) {
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return;
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}
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}
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catch(e) {
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return;
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}
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if(link.href == "data:text/css,"){
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return false;
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}
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var url = link.href || link.getAttribute('data-href'),
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base = url.replace(/[^\/]+$/, ''),
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parent = link.parentNode,
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xhr = new XMLHttpRequest();
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xhr.open('GET', url);
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xhr.onreadystatechange = function() {
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if(xhr.readyState === 4) {
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var css = xhr.responseText;
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if(css && link.parentNode) {
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css = self.fix(css, true, link);
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// Convert relative URLs to absolute, if needed
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if(base) {
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css = css.replace(/url\((?:'|")?(.+?)(?:'|")?\)/gi, function($0, url) {
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if(!/^([a-z]{3,10}:|\/|#)/i.test(url)) { // If url not absolute & not a hash
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// May contain sequences like /../ and /./ but those DO work
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return 'url("' + base + url + '")';
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}
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return $0;
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});
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// behavior URLs shoudn’t be converted (Issue #19)
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css = css.replace(RegExp('\\b(behavior:\\s*?url\\(\'?"?)' + base, 'gi'), '$1');
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}
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var style = document.createElement('style');
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style.textContent = css;
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style.media = link.media;
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style.disabled = link.disabled;
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style.setAttribute('data-href', link.getAttribute('href'));
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parent.insertBefore(style, link);
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parent.removeChild(link);
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}
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}
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};
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xhr.send(null);
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link.setAttribute('data-inprogress', '');
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},
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styleElement: function(style) {
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var disabled = style.disabled;
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style.textContent = self.fix(style.textContent, true, style);
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style.disabled = disabled;
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},
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styleAttribute: function(element) {
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var css = element.getAttribute('style');
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css = self.fix(css, false, element);
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element.setAttribute('style', css);
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},
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process: function() {
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// Linked stylesheets
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$('link[rel="stylesheet"]:not([data-inprogress])').forEach(StyleFix.link);
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// Inline stylesheets
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$('style').forEach(StyleFix.styleElement);
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// Inline styles
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$('[style]').forEach(StyleFix.styleAttribute);
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},
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register: function(fixer, index) {
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(self.fixers = self.fixers || [])
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.splice(index === undefined? self.fixers.length : index, 0, fixer);
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},
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fix: function(css, raw) {
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for(var i=0; i<self.fixers.length; i++) {
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css = self.fixers[i](css, raw) || css;
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}
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return css;
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},
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camelCase: function(str) {
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return str.replace(/-([a-z])/g, function($0, $1) { return $1.toUpperCase(); }).replace('-','');
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},
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deCamelCase: function(str) {
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return str.replace(/[A-Z]/g, function($0) { return '-' + $0.toLowerCase() });
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}
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};
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/**************************************
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* Process styles
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**************************************/
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(function(){
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setTimeout(function(){
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$('link[rel="stylesheet"]').forEach(StyleFix.link);
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}, 10);
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document.addEventListener('DOMContentLoaded', StyleFix.process, false);
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})();
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function $(expr, con) {
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return [].slice.call((con || document).querySelectorAll(expr));
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}
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})();
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/**
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* PrefixFree 1.0.4
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* @author Lea Verou
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* MIT license
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*/
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(function(root, undefined){
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if(!window.StyleFix || !window.getComputedStyle) {
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return;
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}
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var self = window.PrefixFree = {
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prefixCSS: function(css, raw) {
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var prefix = self.prefix;
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function fix(what, before, after, replacement) {
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what = self[what];
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if(what.length) {
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var regex = RegExp(before + '(' + what.join('|') + ')' + after, 'gi');
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css = css.replace(regex, replacement);
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}
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}
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fix('functions', '(\\s|:|,)', '\\s*\\(', '$1' + prefix + '$2(');
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fix('keywords', '(\\s|:)', '(\\s|;|\\}|$)', '$1' + prefix + '$2$3');
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fix('properties', '(^|\\{|\\s|;)', '\\s*:', '$1' + prefix + '$2:');
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// Prefix properties *inside* values (issue #8)
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if (self.properties.length) {
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var regex = RegExp('\\b(' + self.properties.join('|') + ')(?!:)', 'gi');
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fix('valueProperties', '\\b', ':(.+?);', function($0) {
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return $0.replace(regex, prefix + "$1")
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});
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}
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if(raw) {
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fix('selectors', '', '\\b', self.prefixSelector);
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fix('atrules', '@', '\\b', '@' + prefix + '$1');
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}
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// Fix double prefixing
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css = css.replace(RegExp('-' + prefix, 'g'), '-');
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return css;
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},
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// Warning: prefixXXX functions prefix no matter what, even if the XXX is supported prefix-less
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prefixSelector: function(selector) {
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return selector.replace(/^:{1,2}/, function($0) { return $0 + self.prefix })
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},
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prefixProperty: function(property, camelCase) {
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var prefixed = self.prefix + property;
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return camelCase? StyleFix.camelCase(prefixed) : prefixed;
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}
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};
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/**************************************
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* Properties
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**************************************/
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(function() {
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var prefixes = {},
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properties = [],
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shorthands = {},
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style = getComputedStyle(document.documentElement, null),
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dummy = document.createElement('div').style;
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// Why are we doing this instead of iterating over properties in a .style object? Cause Webkit won't iterate over those.
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var iterate = function(property) {
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if(property.charAt(0) === '-') {
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properties.push(property);
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var parts = property.split('-'),
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prefix = parts[1];
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// Count prefix uses
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prefixes[prefix] = ++prefixes[prefix] || 1;
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// This helps determining shorthands
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while(parts.length > 3) {
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parts.pop();
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var shorthand = parts.join('-');
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if(supported(shorthand) && properties.indexOf(shorthand) === -1) {
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properties.push(shorthand);
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}
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}
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}
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},
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supported = function(property) {
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return StyleFix.camelCase(property) in dummy;
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}
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// Some browsers have numerical indices for the properties, some don't
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if(style.length > 0) {
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for(var i=0; i<style.length; i++) {
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iterate(style[i])
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}
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}
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else {
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for(var property in style) {
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iterate(StyleFix.deCamelCase(property));
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}
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}
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// Find most frequently used prefix
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var highest = {uses:0};
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for(var prefix in prefixes) {
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var uses = prefixes[prefix];
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if(highest.uses < uses) {
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highest = {prefix: prefix, uses: uses};
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}
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}
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self.prefix = '-' + highest.prefix + '-';
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self.Prefix = StyleFix.camelCase(self.prefix);
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self.properties = [];
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// Get properties ONLY supported with a prefix
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for(var i=0; i<properties.length; i++) {
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var property = properties[i];
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if(property.indexOf(self.prefix) === 0) { // we might have multiple prefixes, like Opera
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var unprefixed = property.slice(self.prefix.length);
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if(!supported(unprefixed)) {
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self.properties.push(unprefixed);
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}
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}
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}
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// IE fix
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if(self.Prefix == 'Ms'
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&& !('transform' in dummy)
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&& !('MsTransform' in dummy)
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&& ('msTransform' in dummy)) {
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self.properties.push('transform', 'transform-origin');
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}
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self.properties.sort();
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})();
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/**************************************
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* Values
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**************************************/
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(function() {
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// Values that might need prefixing
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var functions = {
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'linear-gradient': {
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property: 'backgroundImage',
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params: 'red, teal'
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},
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'calc': {
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property: 'width',
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params: '1px + 5%'
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},
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'element': {
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property: 'backgroundImage',
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params: '#foo'
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}
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};
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functions['repeating-linear-gradient'] =
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functions['repeating-radial-gradient'] =
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functions['radial-gradient'] =
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functions['linear-gradient'];
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var keywords = {
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'initial': 'color',
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'zoom-in': 'cursor',
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'zoom-out': 'cursor',
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'box': 'display',
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'flexbox': 'display',
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'inline-flexbox': 'display'
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};
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self.functions = [];
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self.keywords = [];
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var style = document.createElement('div').style;
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function supported(value, property) {
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style[property] = '';
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style[property] = value;
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return !!style[property];
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}
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for (var func in functions) {
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var test = functions[func],
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property = test.property,
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value = func + '(' + test.params + ')';
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if (!supported(value, property)
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&& supported(self.prefix + value, property)) {
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// It's supported, but with a prefix
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self.functions.push(func);
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}
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}
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for (var keyword in keywords) {
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var property = keywords[keyword];
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if (!supported(keyword, property)
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&& supported(self.prefix + keyword, property)) {
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// It's supported, but with a prefix
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self.keywords.push(keyword);
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}
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}
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})();
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/**************************************
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* Selectors and @-rules
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**************************************/
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(function() {
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var
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selectors = {
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':read-only': null,
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':read-write': null,
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':any-link': null,
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'::selection': null
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},
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atrules = {
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'keyframes': 'name',
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'viewport': null,
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'document': 'regexp(".")'
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};
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self.selectors = [];
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self.atrules = [];
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var style = root.appendChild(document.createElement('style'));
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function supported(selector) {
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style.textContent = selector + '{}'; // Safari 4 has issues with style.innerHTML
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return !!style.sheet.cssRules.length;
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}
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for(var selector in selectors) {
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var test = selector + (selectors[selector]? '(' + selectors[selector] + ')' : '');
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if(!supported(test) && supported(self.prefixSelector(test))) {
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self.selectors.push(selector);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
for(var atrule in atrules) {
|
|||
|
|
var test = atrule + ' ' + (atrules[atrule] || '');
|
|||
|
|
|
|||
|
|
if(!supported('@' + test) && supported('@' + self.prefix + test)) {
|
|||
|
|
self.atrules.push(atrule);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
root.removeChild(style);
|
|||
|
|
|
|||
|
|
})();
|
|||
|
|
|
|||
|
|
// Properties that accept properties as their value
|
|||
|
|
self.valueProperties = [
|
|||
|
|
'transition',
|
|||
|
|
'transition-property'
|
|||
|
|
]
|
|||
|
|
|
|||
|
|
// Add class for current prefix
|
|||
|
|
root.className += ' ' + self.prefix;
|
|||
|
|
|
|||
|
|
StyleFix.register(self.prefixCSS);
|
|||
|
|
|
|||
|
|
|
|||
|
|
})(document.documentElement);
|