55 lines
1.2 KiB
JavaScript
55 lines
1.2 KiB
JavaScript
'use strict';
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const cssTree = require('css-tree');
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function compressBackground(node) {
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function flush() {
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if (!buffer.length) {
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buffer.unshift(
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{
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type: 'Number',
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loc: null,
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value: '0'
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},
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{
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type: 'Number',
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loc: null,
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value: '0'
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}
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);
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}
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newValue.push.apply(newValue, buffer);
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buffer = [];
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}
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let newValue = [];
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let buffer = [];
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node.children.forEach((node) => {
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if (node.type === 'Operator' && node.value === ',') {
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flush();
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newValue.push(node);
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return;
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}
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// remove defaults
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if (node.type === 'Identifier') {
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if (node.name === 'transparent' ||
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node.name === 'none' ||
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node.name === 'repeat' ||
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node.name === 'scroll') {
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return;
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}
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}
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buffer.push(node);
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});
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flush();
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node.children = new cssTree.List().fromArray(newValue);
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}
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module.exports = compressBackground;
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