36 lines
1.1 KiB
JavaScript
36 lines
1.1 KiB
JavaScript
module.exports = function(options) {
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return {
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postcssPlugin: 'postcss-page-break',
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Declaration(decl) {
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if (decl.prop.startsWith('break-') && /^break-(inside|before|after)/.test(decl.prop)) {
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// do not process column|region related properties
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if (decl.value.search(/column|region/) >= 0) {
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return;
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}
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let newValue;
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switch (decl.value) {
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case 'page':
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newValue = 'always';
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break;
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case 'avoid-page':
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newValue = 'avoid';
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break;
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default:
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newValue = decl.value;
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}
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const newProperty = 'page-' + decl.prop;
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if (decl.parent.every((sibling) => sibling.prop !== newProperty)) {
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decl.cloneBefore({
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prop: newProperty,
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value: newValue,
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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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module.exports.postcss = true;
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