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svgo/plugins/moveGroupAttrsToElems.js
Bogdan Chadkin 07f8d606e0
Implement preset-default plugin (#1513)
I saw complaints about `extendDefaultPlugins` api

- it cannot be used when svgo is installed globally
- it requires svgo to be installed when using svgo-loader or svgo-jsx
- it prevents using serializable config formats like json

In this diff I introduced the new plugin which is a bundle of all
default plugins.

```js
module.exports = {
  plugins: [
    'preset_default',
    // or
    {
      name: 'preset_default',
      floatPrecision: 4,
      overrides: {
        convertPathData: {
          applyTransforms: false
        }
      }
    }
  ]
}
```
2021-08-13 19:07:08 +03:00

63 lines
1.7 KiB
JavaScript

'use strict';
const { pathElems, referencesProps } = require('./_collections.js');
exports.name = 'moveGroupAttrsToElems';
exports.type = 'perItem';
exports.active = true;
exports.description = 'moves some group attributes to the content elements';
const pathElemsWithGroupsAndText = [...pathElems, 'g', 'text'];
/**
* Move group attrs to the content elements.
*
* @example
* <g transform="scale(2)">
* <path transform="rotate(45)" d="M0,0 L10,20"/>
* <path transform="translate(10, 20)" d="M0,10 L20,30"/>
* </g>
* ⬇
* <g>
* <path transform="scale(2) rotate(45)" d="M0,0 L10,20"/>
* <path transform="scale(2) translate(10, 20)" d="M0,10 L20,30"/>
* </g>
*
* @param {Object} item current iteration item
* @return {Boolean} if false, item will be filtered out
*
* @author Kir Belevich
*/
exports.fn = function (item) {
// move group transform attr to content's pathElems
if (
item.type === 'element' &&
item.name === 'g' &&
item.children.length !== 0 &&
item.attributes.transform != null &&
Object.entries(item.attributes).some(
([name, value]) =>
referencesProps.includes(name) && value.includes('url(')
) === false &&
item.children.every(
(inner) =>
pathElemsWithGroupsAndText.includes(inner.name) &&
inner.attributes.id == null
)
) {
for (const inner of item.children) {
const value = item.attributes.transform;
if (inner.attributes.transform != null) {
inner.attributes.transform = value + ' ' + inner.attributes.transform;
} else {
inner.attributes.transform = value;
}
}
delete item.attributes.transform;
}
};