64 lines
1.5 KiB
JavaScript
64 lines
1.5 KiB
JavaScript
"use strict";
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const parsers = require("../parsers");
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const property = "background-attachment";
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const shorthand = "background";
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const descriptor = {
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set(v) {
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v = parsers.prepareValue(v);
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if (parsers.hasVarFunc(v)) {
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this._setProperty(shorthand, "");
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this._setProperty(property, v);
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} else {
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const val = parse(v);
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if (typeof val === "string") {
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const priority =
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!this._priorities.get(shorthand) && this._priorities.has(property) ? this._priorities.get(property) : "";
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this._setProperty(property, val, priority);
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}
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}
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},
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get() {
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return this.getPropertyValue(property);
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},
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enumerable: true,
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configurable: true
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};
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/**
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* Parses the background-attachment property value.
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*
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* @param {string} v - The value to parse.
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* @returns {string|undefined} The parsed value or undefined if invalid.
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*/
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function parse(v) {
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if (v === "") {
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return v;
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}
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const values = parsers.splitValue(v, { delimiter: "," });
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const parsedValues = [];
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for (const val of values) {
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const value = parsers.parsePropertyValue(property, val);
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if (Array.isArray(value) && value.length === 1) {
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const parsedValue = parsers.resolveKeywordValue(value);
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if (!parsedValue) {
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return;
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}
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parsedValues.push(parsedValue);
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} else if (typeof value === "string") {
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parsedValues.push(value);
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}
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}
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if (parsedValues.length) {
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return parsedValues.join(", ");
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}
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}
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module.exports = {
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descriptor,
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parse,
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property
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};
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