'use strict';
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var DEFAULT_SEPARATOR = ':';
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exports.type = 'perItem';
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exports.active = false;
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exports.description = 'removes specified attributes';
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exports.params = {
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elemSeparator: DEFAULT_SEPARATOR,
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preserveCurrentColor: false,
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attrs: []
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};
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/**
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* Remove attributes
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*
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* @param elemSeparator
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* format: string
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*
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* @param preserveCurrentColor
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* format: boolean
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*
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* @param attrs:
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*
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* format: [ element* : attribute* : value* ]
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*
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* element : regexp (wrapped into ^...$), single * or omitted > all elements (must be present when value is used)
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* attribute : regexp (wrapped into ^...$)
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* value : regexp (wrapped into ^...$), single * or omitted > all values
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*
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* examples:
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*
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* > basic: remove fill attribute
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* ---
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* removeAttrs:
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* attrs: 'fill'
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*
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* > remove fill attribute on path element
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* ---
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* attrs: 'path:fill'
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*
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* > remove fill attribute on path element where value is none
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* ---
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* attrs: 'path:fill:none'
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*
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*
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* > remove all fill and stroke attribute
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* ---
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* attrs:
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* - 'fill'
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* - 'stroke'
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*
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* [is same as]
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*
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* attrs: '(fill|stroke)'
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*
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* [is same as]
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*
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* attrs: '*:(fill|stroke)'
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*
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* [is same as]
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*
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* attrs: '.*:(fill|stroke)'
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*
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* [is same as]
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*
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* attrs: '.*:(fill|stroke):.*'
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*
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*
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* > remove all stroke related attributes
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* ----
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* attrs: 'stroke.*'
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*
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*
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* @param {Object} item current iteration item
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* @param {Object} params plugin params
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* @return {Boolean} if false, item will be filtered out
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*
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* @author Benny Schudel
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*/
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exports.fn = function(item, params) {
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// wrap into an array if params is not
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if (!Array.isArray(params.attrs)) {
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params.attrs = [params.attrs];
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}
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if (item.isElem()) {
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var elemSeparator = typeof params.elemSeparator == 'string' ? params.elemSeparator : DEFAULT_SEPARATOR;
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var preserveCurrentColor = typeof params.preserveCurrentColor == 'boolean' ? params.preserveCurrentColor : false;
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// prepare patterns
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var patterns = params.attrs.map(function(pattern) {
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// if no element separators (:), assume it's attribute name, and apply to all elements *regardless of value*
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if (pattern.indexOf(elemSeparator) === -1) {
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pattern = ['.*', elemSeparator, pattern, elemSeparator, '.*'].join('');
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// if only 1 separator, assume it's element and attribute name, and apply regardless of attribute value
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} else if (pattern.split(elemSeparator).length < 3) {
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pattern = [pattern, elemSeparator, '.*'].join('');
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}
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// create regexps for element, attribute name, and attribute value
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return pattern.split(elemSeparator)
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.map(function(value) {
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// adjust single * to match anything
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if (value === '*') { value = '.*'; }
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return new RegExp(['^', value, '$'].join(''), 'i');
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});
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});
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// loop patterns
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patterns.forEach(function(pattern) {
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// matches element
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if (pattern[0].test(item.elem)) {
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// loop attributes
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item.eachAttr(function(attr) {
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var name = attr.name;
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var value = attr.value;
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var isFillCurrentColor = preserveCurrentColor && name == 'fill' && value == 'currentColor';
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var isStrokeCurrentColor = preserveCurrentColor && name == 'stroke' && value == 'currentColor';
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if (!(isFillCurrentColor || isStrokeCurrentColor)) {
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// matches attribute name
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if (pattern[1].test(name)) {
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// matches attribute value
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if (pattern[2].test(attr.value)) {
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item.removeAttr(name);
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}
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}
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}
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});
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}
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});
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}
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};
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