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attrs.js
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attrs.js
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/**
* @copyright 2023-2024 Chris Zuber <[email protected]>
*/
import { setAttr, isScriptURL, isTrustedType } from '@aegisjsproject/core/trust.js';
const clamp = Math.clamp instanceof Function ? Math.clamp : (min, val, max) => Math.min(max, Math.max(min, val));
const between = (min, val, max) => typeof val === 'number' && val >= min && val <= max;
export function getBool(el, attr) {
return el.hasAttribute(attr);
}
export function setBool(el, attr, val) {
el.toggleAttribute(attr, val);
}
export function getInt(el, attr, {
fallback = NaN,
min = Number.MIN_SAFE_INTEGER,
max = Number.MAX_SAFE_INTEGER,
} = {}) {
if (el.hasAttribute(attr)) {
const val = clamp(min, parseInt(el.getAttribute(attr)), max);
return Number.isNaN(val) ? fallback : val;
} else {
return fallback;
}
}
export function setInt(el, attr, val, {
min = Number.MIN_SAFE_INTEGER,
max = Number.MAX_SAFE_INTEGER,
policy,
} = {}) {
if (val instanceof Date) {
setAttr(el, attr, val.getTime(), { min, max, policy});
} else if (Number.isInteger(val)) {
setAttr(el, attr, clamp(min, val, max), { policy });
} else if (typeof val === 'string') {
setInt(el, attr, parseInt(val), { min, max });
} else {
el.removeAttribute(attr);
}
}
export function getFloat(el, attr, {
fallback = NaN,
min = Number.MIN_SAFE_INTEGER,
max = Number.MAX_SAFE_INTEGER,
} = {}) {
if (el.hasAttribute(attr)) {
const val = clamp(min, parseFloat(el.getAttribute(attr)), max);
return Number.isNaN(val) ? fallback : val;
} else {
return fallback;
}
}
export function setFloat(el, attr, val, {
min = Number.MIN_SAFE_INTEGER,
max = Number.MAX_SAFE_INTEGER,
policy,
} = {}) {
if (typeof val === 'number' && ! Number.isNaN(val)) {
setAttr(el, attr, clamp(min, val, max), { policy });
} else if (typeof val === 'string') {
setFloat(el, attr, parseFloat(val), { min, max });
} else {
el.removeAttribute(attr);
}
}
export function getString(el, attr, { fallback = null } = {}) {
if (el.hasAttribute(attr)) {
return el.getAttribute(attr) || fallback;
} else {
return fallback;
}
}
export function setString(el, attr, val, {
minLength = 0,
maxLength = Infinity,
pattern = null,
fallback,
policy,
} = {}) {
if (
typeof val === 'string'
&& between(minLength, val.length, maxLength)
&& (! (pattern instanceof RegExp) || pattern.test(val))
) {
setAttr(el, attr, val, { policy });
} else if(isTrustedType(val)) {
const str = val.toString();
if (
between(minLength, str.length, maxLength)
&& (! (pattern instanceof RegExp) || pattern.test(str))
) {
setAttr(el, attr, val, { policy });
} else {
el.removeAttribute(attr);
}
} else if (typeof fallback === 'string' || isTrustedType(fallback)) {
setString(el, attr, fallback, { pattern, policy, minLength, maxLength });
} else {
el.removeAttribute(attr);
}
}
export function getURL(el, attr, { base = document.baseURI } = {}) {
if (el.hasAttribute(attr)) {
return new URL(el.getAttribute(attr), base);
} else {
return null;
}
}
export function setURL(el, attr, val, {
base = document.baseURI,
requirePath = false,
policy,
} = {}) {
if ((val instanceof URL) && (! requirePath || val.pathname.length > 1)) {
setAttr(el, attr, val.href, { policy });
} else if (typeof val === 'string' && val.length !== 0) {
setURL(el, attr, new URL(val, base), { requirePath });
} else if (isScriptURL(val)) {
const url = new URL(val.toString(), document.baseURI);
if (! requirePath || url.pathname.length > 1) {
setAttr(el, attr, val, { policy });
} else {
el.removeAttribute(attr);
}
} else {
el.removeAttribute(attr);
}
}