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Core: Trigger watchForError callbacks from setError #406

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Merged
fernanDOTdo merged 1 commit into from
Jun 24, 2026
Merged

Core: Trigger watchForError callbacks from setError #406

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1 change: 1 addition & 0 deletions packages/scripts/dist/engrid.d.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,7 @@ export declare abstract class ENGrid {
static removeHtml(target: string): void;
static slugify(text: string): string;
static watchForError(callback: Function): void;
private static getErrorCallbackKey;
static getPaymentType(): string;
static setPaymentType(paymentType: string): void;
static isInViewport(element: HTMLElement): boolean;
Expand Down
33 changes: 21 additions & 12 deletions packages/scripts/dist/engrid.js
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
const errorCallbacks = new Map();
export class ENGrid {
constructor() {
if (!ENGrid.enForm) {
Expand Down Expand Up @@ -426,6 +427,7 @@ export class ENGrid {
else {
errorMessageElement.innerHTML = errorMessage;
}
errorCallbacks.forEach((callback) => callback());
}
}
static removeError(element) {
Expand Down Expand Up @@ -510,6 +512,24 @@ export class ENGrid {
// This function is used to run a callback function when an error is displayed on the page
static watchForError(callback) {
const errorElement = document.querySelector(".en__errorList");
const callbackType = ENGrid.getErrorCallbackKey(callback);
// Register callback so setError can trigger it too
if (!errorCallbacks.has(callbackType)) {
errorCallbacks.set(callbackType, callback);
}
if (errorElement && !errorElement.dataset[callbackType]) {
errorElement.dataset[callbackType] = "true";
const observer = new MutationObserver(function (mutations) {
mutations.forEach(function (mutation) {
if (mutation.type === "childList" && mutation.addedNodes.length > 0) {
callback();
}
});
});
observer.observe(errorElement, { childList: true });
}
}
static getErrorCallbackKey(callback) {
const capitalize = (word) => word.charAt(0).toUpperCase() + word.slice(1);
// Avoid duplicate callbacks
let callbackType = callback.toString();
Expand All @@ -523,18 +543,7 @@ export class ENGrid {
callbackType = callbackType.replace(/[^a-zA-Z0-9]/g, "");
// Limit to 20 characters and add prefix
callbackType = callbackType.substring(0, 20);
callbackType = "engrid" + capitalize(callbackType);
if (errorElement && !errorElement.dataset[callbackType]) {
errorElement.dataset[callbackType] = "true";
const observer = new MutationObserver(function (mutations) {
mutations.forEach(function (mutation) {
if (mutation.type === "childList" && mutation.addedNodes.length > 0) {
callback();
}
});
});
observer.observe(errorElement, { childList: true });
}
return "engrid" + capitalize(callbackType);
}
// Get the Payment Type
static getPaymentType() {
Expand Down
40 changes: 27 additions & 13 deletions packages/scripts/src/engrid.ts
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Original file line number Diff line number Diff line change
@@ -1,5 +1,7 @@
import { Options } from ".";

const errorCallbacks = new Map<string, Function>();

export abstract class ENGrid {
constructor() {
if (!ENGrid.enForm) {
Expand Down Expand Up @@ -492,6 +494,7 @@ export abstract class ENGrid {
} else {
errorMessageElement.innerHTML = errorMessage;
}
errorCallbacks.forEach((callback) => callback());
}
}
static removeError(element: string | HTMLElement) {
Expand Down Expand Up @@ -592,8 +595,31 @@ export abstract class ENGrid {
const errorElement = document.querySelector(
".en__errorList"
) as HTMLUListElement;
const callbackType = ENGrid.getErrorCallbackKey(callback);

// Register callback so setError can trigger it too
if (!errorCallbacks.has(callbackType)) {
errorCallbacks.set(callbackType, callback);
}

if (errorElement && !errorElement.dataset[callbackType]) {
errorElement.dataset[callbackType] = "true";

const observer = new MutationObserver(function (mutations) {
mutations.forEach(function (mutation) {
if (mutation.type === "childList" && mutation.addedNodes.length > 0) {
callback();
}
});
});
observer.observe(errorElement, { childList: true });
}
}

private static getErrorCallbackKey(callback: Function): string {
const capitalize = (word: string) =>
word.charAt(0).toUpperCase() + word.slice(1);

// Avoid duplicate callbacks
let callbackType = callback.toString();
if (callbackType.indexOf("function") === 0) {
Expand All @@ -606,19 +632,7 @@ export abstract class ENGrid {
callbackType = callbackType.replace(/[^a-zA-Z0-9]/g, "");
// Limit to 20 characters and add prefix
callbackType = callbackType.substring(0, 20);
callbackType = "engrid" + capitalize(callbackType);
if (errorElement && !errorElement.dataset[callbackType]) {
errorElement.dataset[callbackType] = "true";

const observer = new MutationObserver(function (mutations) {
mutations.forEach(function (mutation) {
if (mutation.type === "childList" && mutation.addedNodes.length > 0) {
callback();
}
});
});
observer.observe(errorElement, { childList: true });
}
return "engrid" + capitalize(callbackType);
}
// Get the Payment Type
static getPaymentType(): string {
Expand Down
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