mirror of
https://github.com/idanoo/GoScrobble.git
synced 2024-11-25 09:55:15 +00:00
126 lines
4.1 KiB
JavaScript
126 lines
4.1 KiB
JavaScript
/* jshint quotmark: false */
|
||
'use strict';
|
||
|
||
exports.type = 'perItem';
|
||
|
||
exports.active = true;
|
||
|
||
exports.description = 'converts style to attributes';
|
||
|
||
exports.params = {
|
||
keepImportant: false
|
||
};
|
||
|
||
var stylingProps = require('./_collections').attrsGroups.presentation,
|
||
rEscape = '\\\\(?:[0-9a-f]{1,6}\\s?|\\r\\n|.)', // Like \" or \2051. Code points consume one space.
|
||
rAttr = '\\s*(' + g('[^:;\\\\]', rEscape) + '*?)\\s*', // attribute name like ‘fill’
|
||
rSingleQuotes = "'(?:[^'\\n\\r\\\\]|" + rEscape + ")*?(?:'|$)", // string in single quotes: 'smth'
|
||
rQuotes = '"(?:[^"\\n\\r\\\\]|' + rEscape + ')*?(?:"|$)', // string in double quotes: "smth"
|
||
rQuotedString = new RegExp('^' + g(rSingleQuotes, rQuotes) + '$'),
|
||
|
||
// Parentheses, E.g.: url(data:image/png;base64,iVBO...).
|
||
// ':' and ';' inside of it should be threated as is. (Just like in strings.)
|
||
rParenthesis = '\\(' + g('[^\'"()\\\\]+', rEscape, rSingleQuotes, rQuotes) + '*?' + '\\)',
|
||
|
||
// The value. It can have strings and parentheses (see above). Fallbacks to anything in case of unexpected input.
|
||
rValue = '\\s*(' + g('[^!\'"();\\\\]+?', rEscape, rSingleQuotes, rQuotes, rParenthesis, '[^;]*?') + '*?' + ')',
|
||
|
||
// End of declaration. Spaces outside of capturing groups help to do natural trimming.
|
||
rDeclEnd = '\\s*(?:;\\s*|$)',
|
||
|
||
// Important rule
|
||
rImportant = '(\\s*!important(?![-(\w]))?',
|
||
|
||
// Final RegExp to parse CSS declarations.
|
||
regDeclarationBlock = new RegExp(rAttr + ':' + rValue + rImportant + rDeclEnd, 'ig'),
|
||
|
||
// Comments expression. Honors escape sequences and strings.
|
||
regStripComments = new RegExp(g(rEscape, rSingleQuotes, rQuotes, '/\\*[^]*?\\*/'), 'ig');
|
||
|
||
/**
|
||
* Convert style in attributes. Cleanups comments and illegal declarations (without colon) as a side effect.
|
||
*
|
||
* @example
|
||
* <g style="fill:#000; color: #fff;">
|
||
* ⬇
|
||
* <g fill="#000" color="#fff">
|
||
*
|
||
* @example
|
||
* <g style="fill:#000; color: #fff; -webkit-blah: blah">
|
||
* ⬇
|
||
* <g fill="#000" color="#fff" style="-webkit-blah: blah">
|
||
*
|
||
* @param {Object} item current iteration item
|
||
* @return {Boolean} if false, item will be filtered out
|
||
*
|
||
* @author Kir Belevich
|
||
*/
|
||
exports.fn = function(item, params) {
|
||
/* jshint boss: true */
|
||
|
||
if (item.elem && item.hasAttr('style')) {
|
||
// ['opacity: 1', 'color: #000']
|
||
var styleValue = item.attr('style').value,
|
||
styles = [],
|
||
attrs = {};
|
||
|
||
// Strip CSS comments preserving escape sequences and strings.
|
||
styleValue = styleValue.replace(regStripComments, function(match) {
|
||
return match[0] == '/' ? '' :
|
||
match[0] == '\\' && /[-g-z]/i.test(match[1]) ? match[1] : match;
|
||
});
|
||
|
||
regDeclarationBlock.lastIndex = 0;
|
||
for (var rule; rule = regDeclarationBlock.exec(styleValue);) {
|
||
if (!params.keepImportant || !rule[3]) {
|
||
styles.push([rule[1], rule[2]]);
|
||
}
|
||
}
|
||
|
||
if (styles.length) {
|
||
|
||
styles = styles.filter(function(style) {
|
||
if (style[0]) {
|
||
var prop = style[0].toLowerCase(),
|
||
val = style[1];
|
||
|
||
if (rQuotedString.test(val)) {
|
||
val = val.slice(1, -1);
|
||
}
|
||
|
||
if (stylingProps.indexOf(prop) > -1) {
|
||
|
||
attrs[prop] = {
|
||
name: prop,
|
||
value: val,
|
||
local: prop,
|
||
prefix: ''
|
||
};
|
||
|
||
return false;
|
||
}
|
||
}
|
||
|
||
return true;
|
||
});
|
||
|
||
Object.assign(item.attrs, attrs);
|
||
|
||
if (styles.length) {
|
||
item.attr('style').value = styles
|
||
.map(function(declaration) { return declaration.join(':') })
|
||
.join(';');
|
||
} else {
|
||
item.removeAttr('style');
|
||
}
|
||
|
||
}
|
||
|
||
}
|
||
|
||
};
|
||
|
||
function g() {
|
||
return '(?:' + Array.prototype.join.call(arguments, '|') + ')';
|
||
}
|