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56 lines
1.3 KiB
56 lines
1.3 KiB
var packNumber = require('./Number').pack; |
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var LENGTH_UNIT = { |
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// absolute length units |
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'px': true, |
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'mm': true, |
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'cm': true, |
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'in': true, |
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'pt': true, |
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'pc': true, |
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// relative length units |
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'em': true, |
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'ex': true, |
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'ch': true, |
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'rem': true, |
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// viewport-percentage lengths |
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'vh': true, |
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'vw': true, |
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'vmin': true, |
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'vmax': true, |
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'vm': true |
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}; |
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module.exports = function compressDimension(node, item) { |
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var value = packNumber(node.value, item); |
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node.value = value; |
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if (value === '0' && this.declaration !== null && this.atrulePrelude === null) { |
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var unit = node.unit.toLowerCase(); |
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// only length values can be compressed |
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if (!LENGTH_UNIT.hasOwnProperty(unit)) { |
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return; |
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} |
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// issue #362: shouldn't remove unit in -ms-flex since it breaks flex in IE10/11 |
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// issue #200: shouldn't remove unit in flex since it breaks flex in IE10/11 |
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if (this.declaration.property === '-ms-flex' || |
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this.declaration.property === 'flex') { |
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return; |
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} |
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// issue #222: don't remove units inside calc |
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if (this['function'] && this['function'].name === 'calc') { |
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return; |
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} |
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item.data = { |
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type: 'Number', |
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loc: node.loc, |
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value: value |
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}; |
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} |
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};
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