@wix/css-property-parser
Version:
A comprehensive TypeScript library for parsing and serializing CSS property values with full MDN specification compliance
76 lines (75 loc) • 2.58 kB
JavaScript
;
// Shared Border Width Property Parser
// Provides shared parsing logic for individual border width properties
// borderTopWidth, borderRightWidth, borderBottomWidth, borderLeftWidth
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseBorderWidthProperty = parseBorderWidthProperty;
exports.borderWidthToCSSValue = borderWidthToCSSValue;
const length_1 = require('./length.cjs');
const css_variable_1 = require('./css-variable.cjs');
const shared_utils_1 = require('../utils/shared-utils.cjs');
// Import centralized types
const types_1 = require('../types.cjs');
/**
* Check if value is a border width keyword
*/
function isBorderWidthKeyword(value) {
return types_1.BORDER_WIDTH_KEYWORDS.includes(value.toLowerCase());
}
/**
* Parse a border width property value (length or keyword)
* Accepts non-negative lengths and border width keywords
*
* @param value - CSS border width value string
* @returns Parsed border width value or null if invalid
*/
function parseBorderWidthProperty(value) {
if (!value || typeof value !== 'string') {
return null;
}
const trimmed = value.trim();
if (trimmed === '') {
return null;
}
// CSS variables - return proper CSSVariable object
if ((0, shared_utils_1.isCssVariable)(trimmed)) {
return (0, css_variable_1.parse)(trimmed);
}
// Global keywords
if ((0, shared_utils_1.isGlobalKeyword)(trimmed)) {
return { type: 'keyword', keyword: trimmed.toLowerCase() };
}
// Border width keywords (thin, medium, thick)
if (isBorderWidthKeyword(trimmed)) {
return { type: 'keyword', keyword: trimmed.toLowerCase() };
}
// Length values (non-negative only)
const lengthResult = (0, length_1.parse)(trimmed);
if (lengthResult &&
(('value' in lengthResult && lengthResult.value >= 0) ||
('expression' in lengthResult))) {
return lengthResult;
}
return null;
}
/**
* Convert border width value back to CSS string
*
* @param parsed - Parsed border width value
* @returns CSS string representation or null if invalid
*/
function borderWidthToCSSValue(parsed) {
if (!parsed) {
return null;
}
// Handle CSS variables
if ('CSSvariable' in parsed) {
return (0, css_variable_1.toCSSValue)(parsed);
}
// Handle keywords (global + border width keywords)
if ('keyword' in parsed) {
return parsed.keyword;
}
// Handle length values by delegating to length toCSSValue
return (0, length_1.toCSSValue)(parsed);
}