Files
keycloak_theme/src/login/lib/getUserProfileApi/kcNumberUnFormat.ts
2024-10-19 10:18:22 +02:00

110 lines
3.3 KiB
TypeScript

import { assert } from "keycloakify/tools/assert";
let cleanup: (() => void) | undefined;
const handledElements = new WeakSet<HTMLElement>();
const KC_NUMBER_UNFORMAT = "kcNumberUnFormat";
const SELECTOR = `input[data-${KC_NUMBER_UNFORMAT}]`;
export function unFormatNumberOnSubmit() {
cleanup?.();
const handleElement = (element: HTMLInputElement) => {
if (handledElements.has(element)) {
return;
}
const form = element.closest("form");
if (form === null) {
return;
}
form.addEventListener("submit", () => {
const rawFormat = element.getAttribute(`data-${KC_NUMBER_UNFORMAT}`);
if (rawFormat) {
element.value = formatNumber(element.value, rawFormat);
}
});
handledElements.add(element);
};
document.querySelectorAll(SELECTOR).forEach(element => {
assert(element instanceof HTMLInputElement);
handleElement(element);
});
const observer = new MutationObserver(mutationsList => {
for (const mutation of mutationsList) {
if (mutation.type === "childList" && mutation.addedNodes.length > 0) {
mutation.addedNodes.forEach(node => {
if (node.nodeType === Node.ELEMENT_NODE) {
const element = (node as HTMLElement).querySelector(SELECTOR);
if (element !== null) {
assert(element instanceof HTMLInputElement);
handleElement(element);
}
}
});
}
}
});
observer.observe(document.body, { childList: true, subtree: true });
cleanup = () => observer.disconnect();
}
// NOTE: Keycloak code
const formatNumber = (input: string, format: string) => {
if (!input) {
return "";
}
// array holding the patterns for the number of expected digits in each part
const digitPattern = format.match(/{\d+}/g);
if (!digitPattern) {
return "";
}
// calculate the maximum size of the given pattern based on the sum of the expected digits
const maxSize = digitPattern.reduce(
(total, p) => total + parseInt(p.replace("{", "").replace("}", "")),
0
);
// keep only digits
let rawValue = input.replace(/\D+/g, "");
// make sure the value is a number
//@ts-expect-error
if (parseInt(rawValue) != rawValue) {
return "";
}
// make sure the number of digits does not exceed the maximum size
if (rawValue.length > maxSize) {
rawValue = rawValue.substring(0, maxSize);
}
// build the regex based based on the expected digits in each part
const formatter = digitPattern.reduce((result, p) => result + `(\\d${p})`, "^");
// if the current digits match the pattern we have each group of digits in an array
let digits = new RegExp(formatter).exec(rawValue);
// no match, return the raw value without any format
if (!digits) {
return input;
}
let result = format;
// finally format the current digits accordingly to the given format
for (let i = 0; i < digitPattern.length; i++) {
result = result.replace(digitPattern[i], digits[i + 1]);
}
return result;
};