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mightyscape-1.1-deprecated/extensions/fablabchemnitz/svgo-inkscape/node_modules/svgo/plugins/removeAttrs.js
2020-08-30 12:36:33 +02:00

113 lines
2.3 KiB
JavaScript

'use strict';
var ELEM_SEP = ':';
exports.type = 'perItem';
exports.active = false;
exports.params = {
attrs: []
};
/**
* Remove attributes
*
* @param attrs:
*
* format: [ element* : attribute* ]
*
* element : regexp (wrapped into ^...$), single * or omitted > all elements
* attribute : regexp (wrapped into ^...$)
*
* examples:
*
* > remove fill attribute on path element
* ---
* attrs: 'path:fill'
*
*
* > remove all fill and stroke attribute
* ---
* attrs:
* - 'fill'
* - 'stroke'
*
* [is same as]
*
* attrs: '(fill|stroke)'
*
* [is same as]
*
* attrs: '*:(fill|stroke)'
*
* [is same as]
*
* attrs: '.*:(fill|stroke)'
*
*
* > remove all stroke related attributes
* ----
* attrs: 'stroke.*'
*
*
* @param {Object} item current iteration item
* @param {Object} params plugin params
* @return {Boolean} if false, item will be filtered out
*
* @author Benny Schudel
*/
exports.fn = function(item, params) {
// wrap into an array if params is not
if (!Array.isArray(params.attrs)) {
params.attrs = [params.attrs];
}
if (item.isElem()) {
// prepare patterns
var patterns = params.attrs.map(function(pattern) {
// apply to all elements if specifc element is omitted
if (pattern.indexOf(ELEM_SEP) === -1) {
pattern = ['.*', ELEM_SEP, pattern].join('');
}
// create regexps for element and attribute name
return pattern.split(ELEM_SEP)
.map(function(value) {
// adjust single * to match anything
if (value === '*') { value = '.*'; }
return new RegExp(['^', value, '$'].join(''), 'i');
});
});
// loop patterns
patterns.forEach(function(pattern) {
// matches element
if (pattern[0].test(item.elem)) {
// loop attributes
item.eachAttr(function(attr) {
var name = attr.name;
// matches attribute name
if (pattern[1].test(name)) {
item.removeAttr(name);
}
});
}
});
}
};