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node_modules/svgo/plugins/minifyStyles.js 1.19 KB
aaac7fed   liuqimichale   add
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  'use strict';
  
  exports.type = 'perItem';
  
  exports.active = true;
  
  exports.params = {
      svgo: {}
  };
  
  exports.description = 'minifies existing styles in svg';
  
  var csso = require('csso');
  
  /**
   * Minifies styles (<style> element + style attribute) using svgo
   *
   * @param {Object} item current iteration item
   * @return {Boolean} if false, item will be filtered out
   *
   * @author strarsis <strarsis@gmail.com>
   */
  exports.fn = function(item, svgoOptions) {
  
      if(item.elem) {
          if(item.isElem('style') && !item.isEmpty()) {
              var styleCss = item.content[0].text || item.content[0].cdata || [],
                  DATA = styleCss.indexOf('>') >= 0 || styleCss.indexOf('<') >= 0 ? 'cdata' : 'text';
              if(styleCss.length > 0) {
                  var styleCssMinified = csso.minify(styleCss, svgoOptions);
                  item.content[0][DATA] = styleCssMinified.css;
              }
        }
  
        if(item.hasAttr('style')) {
            var itemCss = item.attr('style').value;
            if(itemCss.length > 0) {
                var itemCssMinified = csso.minifyBlock(itemCss, svgoOptions);
                item.attr('style').value = itemCssMinified.css;
            }
        }
      }
  
      return item;
  };