金五联管理系统PC前端
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jwl-manage-web/public/loading/prefixfree.min.js

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13 KiB

(function () {
if (!window.addEventListener) {
return;
}
var self = (window.StyleFix = {
link: function (link) {
try {
// Ignore stylesheets with data-noprefix attribute as well as alternate stylesheets
if (link.rel !== 'stylesheet' || link.hasAttribute('data-noprefix')) {
return;
}
} catch (e) {
return;
}
var url = link.href || link.getAttribute('data-href');
var base = url.replace(/[^\/]+$/, '');
var base_scheme = (/^[a-z]{3,10}:/.exec(base) || [''])[0];
var base_domain = (/^[a-z]{3,10}:\/\/[^\/]+/.exec(base) || [''])[0];
var base_query = /^([^?]*)\??/.exec(url)[1];
var parent = link.parentNode;
var xhr = new XMLHttpRequest();
var process;
xhr.onreadystatechange = function () {
if (xhr.readyState === 4) {
process();
}
};
process = function () {
var css = xhr.responseText;
if (css && link.parentNode && (!xhr.status || xhr.status < 400 || xhr.status > 600)) {
css = self.fix(css, true, link);
// Convert relative URLs to absolute, if needed
if (base) {
css = css.replace(/url\(\s*?((?:"|')?)(.+?)\1\s*?\)/gi, function ($0, quote, url) {
if (/^([a-z]{3,10}:|#)/i.test(url)) {
// Absolute & or hash-relative
return $0;
} else if (/^\/\//.test(url)) {
// Scheme-relative
// May contain sequences like /../ and /./ but those DO work
return 'url("' + base_scheme + url + '")';
} else if (/^\//.test(url)) {
// Domain-relative
return 'url("' + base_domain + url + '")';
} else if (/^\?/.test(url)) {
// Query-relative
return 'url("' + base_query + url + '")';
} else {
// Path-relative
return 'url("' + base + url + '")';
}
});
// behavior URLs shoudn’t be converted (Issue #19)
// base should be escaped before added to RegExp (Issue #81)
var escaped_base = base.replace(/([\\\^\$*+[\]?{}.=!:(|)])/g, '\\$1');
css = css.replace(RegExp('\\b(behavior:\\s*?url\\(\'?"?)' + escaped_base, 'gi'), '$1');
}
var style = document.createElement('style');
style.textContent = css;
style.media = link.media;
style.disabled = link.disabled;
style.setAttribute('data-href', link.getAttribute('href'));
parent.insertBefore(style, link);
parent.removeChild(link);
style.media = link.media; // Duplicate is intentional. See issue #31
}
};
try {
xhr.open('GET', url);
xhr.send(null);
} catch (e) {
// Fallback to XDomainRequest if available
if (typeof XDomainRequest !== 'undefined') {
xhr = new XDomainRequest();
xhr.onerror = xhr.onprogress = function () {};
xhr.onload = process;
xhr.open('GET', url);
xhr.send(null);
}
}
link.setAttribute('data-inprogress', '');
},
styleElement: function (style) {
if (style.hasAttribute('data-noprefix')) {
return;
}
var disabled = style.disabled;
style.textContent = self.fix(style.textContent, true, style);
style.disabled = disabled;
},
styleAttribute: function (element) {
var css = element.getAttribute('style');
css = self.fix(css, false, element);
element.setAttribute('style', css);
},
process: function () {
// Linked stylesheets
$('link[rel="stylesheet"]:not([data-inprogress])').forEach(StyleFix.link);
// Inline stylesheets
$('style').forEach(StyleFix.styleElement);
// Inline styles
$('[style]').forEach(StyleFix.styleAttribute);
},
register: function (fixer, index) {
(self.fixers = self.fixers || []).splice(index === undefined ? self.fixers.length : index, 0, fixer);
},
fix: function (css, raw, element) {
for (var i = 0; i < self.fixers.length; i++) {
css = self.fixers[i](css, raw, element) || css;
}
return css;
},
camelCase: function (str) {
return str
.replace(/-([a-z])/g, function ($0, $1) {
return $1.toUpperCase();
})
.replace('-', '');
},
deCamelCase: function (str) {
return str.replace(/[A-Z]/g, function ($0) {
return '-' + $0.toLowerCase();
});
}
});
/** ************************************
* Process styles
**************************************/
(function () {
setTimeout(function () {
$('link[rel="stylesheet"]').forEach(StyleFix.link);
}, 10);
document.addEventListener('DOMContentLoaded', StyleFix.process, false);
})();
function $(expr, con) {
return [].slice.call((con || document).querySelectorAll(expr));
}
})();
/**
* PrefixFree
*/
(function (root) {
if (!window.StyleFix || !window.getComputedStyle) {
return;
}
// Private helper
function fix(what, before, after, replacement, css) {
what = self[what];
if (what.length) {
var regex = RegExp(before + '(' + what.join('|') + ')' + after, 'gi');
css = css.replace(regex, replacement);
}
return css;
}
var self = (window.PrefixFree = {
prefixCSS: function (css, raw, element) {
var prefix = self.prefix;
// Gradient angles hotfix
if (self.functions.indexOf('linear-gradient') > -1) {
// Gradients are supported with a prefix, convert angles to legacy
css = css.replace(/(\s|:|,)(repeating-)?linear-gradient\(\s*(-?\d*\.?\d*)deg/gi, function ($0, delim, repeating, deg) {
return delim + (repeating || '') + 'linear-gradient(' + (90 - deg) + 'deg';
});
}
css = fix('functions', '(\\s|:|,)', '\\s*\\(', '$1' + prefix + '$2(', css);
css = fix('keywords', '(\\s|:)', '(\\s|;|\\}|$)', '$1' + prefix + '$2$3', css);
css = fix('properties', '(^|\\{|\\s|;)', '\\s*:', '$1' + prefix + '$2:', css);
// Prefix properties *inside* values (issue #8)
if (self.properties.length) {
var regex = RegExp('\\b(' + self.properties.join('|') + ')(?!:)', 'gi');
css = fix(
'valueProperties',
'\\b',
':(.+?);',
function ($0) {
return $0.replace(regex, prefix + '$1');
},
css
);
}
if (raw) {
css = fix('selectors', '', '\\b', self.prefixSelector, css);
css = fix('atrules', '@', '\\b', '@' + prefix + '$1', css);
}
// Fix double prefixing
css = css.replace(RegExp('-' + prefix, 'g'), '-');
// Prefix wildcard
css = css.replace(/-\*-(?=[a-z]+)/gi, self.prefix);
return css;
},
property: function (property) {
return (self.properties.indexOf(property) ? self.prefix : '') + property;
},
value: function (value, property) {
value = fix('functions', '(^|\\s|,)', '\\s*\\(', '$1' + self.prefix + '$2(', value);
value = fix('keywords', '(^|\\s)', '(\\s|$)', '$1' + self.prefix + '$2$3', value);
// TODO properties inside values
return value;
},
// Warning: Prefixes no matter what, even if the selector is supported prefix-less
prefixSelector: function (selector) {
return selector.replace(/^:{1,2}/, function ($0) {
return $0 + self.prefix;
});
},
// Warning: Prefixes no matter what, even if the property is supported prefix-less
prefixProperty: function (property, camelCase) {
var prefixed = self.prefix + property;
return camelCase ? StyleFix.camelCase(prefixed) : prefixed;
}
});
/** ************************************
* Properties
**************************************/
(function () {
var prefixes = {};
var properties = [];
var shorthands = {};
var style = getComputedStyle(document.documentElement, null);
var dummy = document.createElement('div').style;
// Why are we doing this instead of iterating over properties in a .style object? Cause Webkit won't iterate over those.
var iterate = function (property) {
if (property.charAt(0) === '-') {
properties.push(property);
var parts = property.split('-');
var prefix = parts[1];
// Count prefix uses
prefixes[prefix] = ++prefixes[prefix] || 1;
// This helps determining shorthands
while (parts.length > 3) {
parts.pop();
var shorthand = parts.join('-');
if (supported(shorthand) && properties.indexOf(shorthand) === -1) {
properties.push(shorthand);
}
}
}
};
var supported = function (property) {
return StyleFix.camelCase(property) in dummy;
};
// Some browsers have numerical indices for the properties, some don't
if (style.length > 0) {
for (var i = 0; i < style.length; i++) {
iterate(style[i]);
}
} else {
for (var property in style) {
iterate(StyleFix.deCamelCase(property));
}
}
// Find most frequently used prefix
var highest = { uses: 0 };
for (var prefix in prefixes) {
var uses = prefixes[prefix];
if (highest.uses < uses) {
highest = { prefix: prefix, uses: uses };
}
}
self.prefix = '-' + highest.prefix + '-';
self.Prefix = StyleFix.camelCase(self.prefix);
self.properties = [];
// Get properties ONLY supported with a prefix
for (var i = 0; i < properties.length; i++) {
var property = properties[i];
if (property.indexOf(self.prefix) === 0) {
// we might have multiple prefixes, like Opera
var unprefixed = property.slice(self.prefix.length);
if (!supported(unprefixed)) {
self.properties.push(unprefixed);
}
}
}
// IE fix
if (self.Prefix == 'Ms' && !('transform' in dummy) && !('MsTransform' in dummy) && 'msTransform' in dummy) {
self.properties.push('transform', 'transform-origin');
}
self.properties.sort();
})();
/** ************************************
* Values
**************************************/
(function () {
// Values that might need prefixing
var functions = {
'linear-gradient': {
property: 'backgroundImage',
params: 'red, teal'
},
calc: {
property: 'width',
params: '1px + 5%'
},
element: {
property: 'backgroundImage',
params: '#foo'
},
'cross-fade': {
property: 'backgroundImage',
params: 'url(a.png), url(b.png), 50%'
}
};
functions['repeating-linear-gradient'] = functions['repeating-radial-gradient'] = functions['radial-gradient'] = functions['linear-gradient'];
// Note: The properties assigned are just to *test* support.
// The keywords will be prefixed everywhere.
var keywords = {
initial: 'color',
'zoom-in': 'cursor',
'zoom-out': 'cursor',
box: 'display',
flexbox: 'display',
'inline-flexbox': 'display',
flex: 'display',
'inline-flex': 'display',
grid: 'display',
'inline-grid': 'display',
'min-content': 'width'
};
self.functions = [];
self.keywords = [];
var style = document.createElement('div').style;
function supported(value, property) {
style[property] = '';
style[property] = value;
return !!style[property];
}
for (var func in functions) {
var test = functions[func];
var property = test.property;
var value = func + '(' + test.params + ')';
if (!supported(value, property) && supported(self.prefix + value, property)) {
// It's supported, but with a prefix
self.functions.push(func);
}
}
for (var keyword in keywords) {
var property = keywords[keyword];
if (!supported(keyword, property) && supported(self.prefix + keyword, property)) {
// It's supported, but with a prefix
self.keywords.push(keyword);
}
}
})();
/** ************************************
* Selectors and @-rules
**************************************/
(function () {
var selectors = {
':read-only': null,
':read-write': null,
':any-link': null,
'::selection': null
};
var atrules = {
keyframes: 'name',
viewport: null,
document: 'regexp(".")'
};
self.selectors = [];
self.atrules = [];
var style = root.appendChild(document.createElement('style'));
function supported(selector) {
style.textContent = selector + '{}'; // Safari 4 has issues with style.innerHTML
return !!style.sheet.cssRules.length;
}
for (var selector in selectors) {
var test = selector + (selectors[selector] ? '(' + selectors[selector] + ')' : '');
if (!supported(test) && supported(self.prefixSelector(test))) {
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);