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node_modules/svgo/plugins/removeElementsByAttr.js 1.89 KB
aaac7fed   liuqimichale   add
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  'use strict';
  
  exports.type = 'perItem';
  
  exports.active = false;
  
  exports.description = 'removes arbitrary elements by ID or className (disabled by default)';
  
  exports.params = {
      id: [],
      class: []
  };
  
  /**
   * Remove arbitrary SVG elements by ID or className.
   *
   * @param id
   *   examples:
   *
   *     > single: remove element with ID of `elementID`
   *     ---
   *     removeElementsByAttr:
   *       id: 'elementID'
   *
   *     > list: remove multiple elements by ID
   *     ---
   *     removeElementsByAttr:
   *       id:
   *         - 'elementID'
   *         - 'anotherID'
   *
   * @param class
   *   examples:
   *
   *     > single: remove all elements with class of `elementClass`
   *     ---
   *     removeElementsByAttr:
   *       class: 'elementClass'
   *
   *     > list: remove all elements with class of `elementClass` or `anotherClass`
   *     ---
   *     removeElementsByAttr:
   *       class:
   *         - 'elementClass'
   *         - 'anotherClass'
   *
   * @param {Object} item current iteration item
   * @param {Object} params plugin params
   * @return {Boolean} if false, item will be filtered out
   *
   * @author Eli Dupuis (@elidupuis)
   */
  exports.fn = function(item, params) {
      var elemId, elemClass;
  
      // wrap params in an array if not already
      ['id', 'class'].forEach(function(key) {
          if (!Array.isArray(params[key])) {
              params[key] = [ params[key] ];
          }
      });
  
      // abort if current item is no an element
      if (!item.isElem()) {
          return;
      }
  
      // remove element if it's `id` matches configured `id` params
      elemId = item.attr('id');
      if (elemId) {
          return params.id.indexOf(elemId.value) === -1;
      }
  
      // remove element if it's `class` contains any of the configured `class` params
      elemClass = item.attr('class');
      if (elemClass) {
          var hasClassRegex = new RegExp(params.class.join('|'));
          return !hasClassRegex.test(elemClass.value);
      }
  };