@wix/css-property-parser
Version:
A comprehensive TypeScript library for parsing and serializing CSS property values with full MDN specification compliance
70 lines (69 loc) • 2.57 kB
JavaScript
;
// CSS justify-content property evaluator
// Handles CSS justify-content property values according to MDN specification
// https://developer.mozilla.org/en-US/docs/Web/CSS/justify-content
Object.defineProperty(exports, "__esModule", { value: true });
exports.parse = parse;
exports.toCSSValue = toCSSValue;
const shared_utils_1 = require('../utils/shared-utils.cjs');
const css_variable_1 = require('./css-variable.cjs');
// Import and re-export centralized types
const types_1 = require('../types.cjs');
// Use imported keyword arrays
const NORMAL_KEYWORDS = types_1.JUSTIFY_CONTENT_NORMAL_KEYWORDS;
const POSITIONAL_KEYWORDS = types_1.POSITIONAL_ALIGNMENT_KEYWORDS;
const DISTRIBUTED_KEYWORDS = types_1.JUSTIFY_CONTENT_DISTRIBUTED_KEYWORDS;
const OVERFLOW_KEYWORDS = types_1.OVERFLOW_ALIGNMENT_KEYWORDS;
// All valid justify-content keywords
const ALL_KEYWORDS = [
...NORMAL_KEYWORDS,
...POSITIONAL_KEYWORDS,
...DISTRIBUTED_KEYWORDS
];
function parse(value) {
if (!value || typeof value !== 'string') {
return null;
}
const trimmed = value.trim();
if (trimmed === '') {
return null;
}
// CSS variables can be parsed directly
if ((0, shared_utils_1.isCssVariable)(trimmed)) {
return (0, css_variable_1.parse)(trimmed);
}
// Handle global keywords
if ((0, shared_utils_1.isGlobalKeyword)(trimmed)) {
return { type: 'keyword', keyword: trimmed.toLowerCase() };
}
// Handle overflow alignment (safe/unsafe + positional keyword)
const tokens = trimmed.toLowerCase().split(/\s+/);
if (tokens.length === 2) {
const [modifier, alignment] = tokens;
const validModifier = (0, shared_utils_1.getValidKeyword)(modifier, OVERFLOW_KEYWORDS);
const validAlignment = (0, shared_utils_1.getValidKeyword)(alignment, POSITIONAL_KEYWORDS);
if (validModifier && validAlignment) {
return { type: 'keyword', keyword: `${validModifier} ${validAlignment}` };
}
}
// Handle single keywords
const lowerValue = trimmed.toLowerCase();
const validKeyword = (0, shared_utils_1.getValidKeyword)(lowerValue, ALL_KEYWORDS);
if (validKeyword) {
return { type: 'keyword', keyword: validKeyword };
}
return null;
}
function toCSSValue(parsed) {
if (!parsed) {
return null;
}
// Handle CSS variables
if ('CSSvariable' in parsed) {
return (0, css_variable_1.toCSSValue)(parsed);
}
if ('keyword' in parsed) {
return parsed.keyword;
}
return null;
}