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cart.js-default-vs-modified

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class CartRemoveButton extends HTMLElement {
class CartRemoveButton extends HTMLElement {
constructor() {
constructor() {
super();
super();


this.addEventListener('click', (event) => {
this.addEventListener('click', (event) => {
event.preventDefault();
event.preventDefault();
const cartItems = this.closest('cart-items') || this.closest('cart-drawer-items');
const cartItems = this.closest('cart-items') || this.closest('cart-drawer-items');
cartItems.updateQuantity(this.dataset.index, 0, event);
cartItems.updateQuantity(this.dataset.index, 0, event);
});
});
}
}
}
}


customElements.define('cart-remove-button', CartRemoveButton);
customElements.define('cart-remove-button', CartRemoveButton);


class CartItems extends HTMLElement {
class CartItems extends HTMLElement {
constructor() {
constructor() {
super();
super();
this.lineItemStatusElement =
this.lineItemStatusElement =
document.getElementById('shopping-cart-line-item-status') || document.getElementById('CartDrawer-LineItemStatus');
document.getElementById('shopping-cart-line-item-status') || document.getElementById('CartDrawer-LineItemStatus');


const debouncedOnChange = debounce((event) => {
const debouncedOnChange = debounce((event) => {
this.onChange(event);
this.onChange(event);
}, ON_CHANGE_DEBOUNCE_TIMER);
}, ON_CHANGE_DEBOUNCE_TIMER);


this.addEventListener('change', debouncedOnChange.bind(this));
this.addEventListener('change', debouncedOnChange.bind(this));
}
}


cartUpdateUnsubscriber = undefined;
cartUpdateUnsubscriber = undefined;


connectedCallback() {
connectedCallback() {
this.cartUpdateUnsubscriber = subscribe(PUB_SUB_EVENTS.cartUpdate, (event) => {
this.cartUpdateUnsubscriber = subscribe(PUB_SUB_EVENTS.cartUpdate, (event) => {
if (event.source === 'cart-items') {
if (event.source === 'cart-items') {
return;
return;
}
}
return this.onCartUpdate();
return this.onCartUpdate();
});
});
}
}


disconnectedCallback() {
disconnectedCallback() {
if (this.cartUpdateUnsubscriber) {
if (this.cartUpdateUnsubscriber) {
this.cartUpdateUnsubscriber();
this.cartUpdateUnsubscriber();
}
}
}
}


resetQuantityInput(id) {
resetQuantityInput(id) {
const input = this.querySelector(`#Quantity-${id}`);
const input = this.querySelector(`#Quantity-${id}`);
input.value = input.getAttribute('value');
input.value = input.getAttribute('value');
this.isEnterPressed = false;
this.isEnterPressed = false;
}
}


setValidity(event, index, message) {
setValidity(event, index, message) {
event.target.setCustomValidity(message);
event.target.setCustomValidity(message);
event.target.reportValidity();
event.target.reportValidity();
this.resetQuantityInput(index);
this.resetQuantityInput(index);
event.target.select();
event.target.select();
}
}


validateQuantity(event) {
validateQuantity(event) {
const inputValue = parseInt(event.target.value);
const inputValue = parseInt(event.target.value);
const index = event.target.dataset.index;
const index = event.target.dataset.index;
let message = '';
let message = '';


if (inputValue < event.target.dataset.min) {
if (inputValue < event.target.dataset.min) {
message = window.quickOrderListStrings.min_error.replace('[min]', event.target.dataset.min);
message = window.quickOrderListStrings.min_error.replace('[min]', event.target.dataset.min);
} else if (inputValue > parseInt(event.target.max)) {
} else if (inputValue > parseInt(event.target.max)) {
message = window.quickOrderListStrings.max_error.replace('[max]', event.target.max);
message = window.quickOrderListStrings.max_error.replace('[max]', event.target.max);
} else if (inputValue % parseInt(event.target.step) !== 0) {
} else if (inputValue % parseInt(event.target.step) !== 0) {
message = window.quickOrderListStrings.step_error.replace('[step]', event.target.step);
message = window.quickOrderListStrings.step_error.replace('[step]', event.target.step);
}
}


if (message) {
if (message) {
this.setValidity(event, index, message);
this.setValidity(event, index, message);
} else {
} else {
event.target.setCustomValidity('');
event.target.setCustomValidity('');
event.target.reportValidity();
event.target.reportValidity();
this.updateQuantity(
this.updateQuantity(
index,
index,
inputValue,
inputValue,
event,
event,
document.activeElement.getAttribute('name'),
document.activeElement.getAttribute('name'),
event.target.dataset.quantityVariantId
event.target.dataset.quantityVariantId
);
);
}
}
}
}


onChange(event) {
onChange(event) {
this.validateQuantity(event);
this.validateQuantity(event);
}
}


onCartUpdate() {
onCartUpdate() {
if (this.tagName === 'CART-DRAWER-ITEMS') {
if (this.tagName === 'CART-DRAWER-ITEMS') {
return fetch(`${routes.cart_url}?section_id=cart-drawer`)
return fetch(`${routes.cart_url}?section_id=cart-drawer`)
.then((response) => response.text())
.then((response) => response.text())
.then((responseText) => {
.then((responseText) => {
const html = new DOMParser().parseFromString(responseText, 'text/html');
const html = new DOMParser().parseFromString(responseText, 'text/html');
const selectors = ['cart-drawer-items', '.cart-drawer__footer'];
const selectors = ['cart-drawer-items', '.cart-drawer__footer'];
for (const selector of selectors) {
for (const selector of selectors) {
const targetElement = document.querySelector(selector);
const targetElement = document.querySelector(selector);
const sourceElement = html.querySelector(selector);
const sourceElement = html.querySelector(selector);
if (targetElement && sourceElement) {
if (targetElement && sourceElement) {
targetElement.replaceWith(sourceElement);
targetElement.replaceWith(sourceElement);
}
}
}
}
})
})
.catch((e) => {
.catch((e) => {
console.error(e);
console.error(e);
});
});
} else {
} else {
return fetch(`${routes.cart_url}?section_id=main-cart-items`)
return fetch(`${routes.cart_url}?section_id=main-cart-items`)
.then((response) => response.text())
.then((response) => response.text())
.then((responseText) => {
.then((responseText) => {
const html = new DOMParser().parseFromString(responseText, 'text/html');
const html = new DOMParser().parseFromString(responseText, 'text/html');
const sourceQty = html.querySelector('cart-items');
const sourceQty = html.querySelector('cart-items');
this.innerHTML = sourceQty.innerHTML;
this.innerHTML = sourceQty.innerHTML;
})
})
.catch((e) => {
.catch((e) => {
console.error(e);
console.error(e);
});
});
}
}
}
}


getSectionsToRender() {
getSectionsToRender() {
return [
return [
{
{
id: 'main-cart-items',
id: 'main-cart-items',
section: document.getElementById('main-cart-items').dataset.id,
section: document.getElementById('main-cart-items').dataset.id,
selector: '.js-contents',
selector: '.js-contents',
},
},
{
{
id: 'cart-icon-bubble',
id: 'cart-icon-bubble',
section: 'cart-icon-bubble',
section: 'cart-icon-bubble',
selector: '.shopify-section',
selector: '.cart-count-bubble',
},
},
{
{
id: 'cart-live-region-text',
id: 'cart-live-region-text',
section: 'cart-live-region-text',
section: 'cart-live-region-text',
selector: '.shopify-section',
selector: '.shopify-section',
},
},
{
{
id: 'main-cart-footer',
id: 'main-cart-footer',
section: document.getElementById('main-cart-footer').dataset.id,
section: document.getElementById('main-cart-footer').dataset.id,
selector: '.js-contents',
selector: '.js-contents',
},
},
];
];
}
}


updateQuantity(line, quantity, event, name, variantId) {
updateQuantity(line, quantity, event, name, variantId) {
const eventTarget = event.currentTarget instanceof CartRemoveButton ? 'clear' : 'change';
const eventTarget = event.currentTarget instanceof CartRemoveButton ? 'clear' : 'change';
const cartPerformanceUpdateMarker = CartPerformance.createStartingMarker(`${eventTarget}:user-action`);
const cartPerformanceUpdateMarker = CartPerformance.createStartingMarker(`${eventTarget}:user-action`);


this.enableLoading(line);
this.enableLoading(line);


const body = JSON.stringify({
// Optimistic UI update
line,
const quantityElement =
quantity,
document.getElementById(`Quantity-${line}`) || document.getElementById(`Drawer-quantity-${line}`);
sections: this.getSectionsToRender().map((section) => section.section),
if (quantityElement) quantityElement.value = quantity;
sections_url: window.location.pathname,
});


fetch(`${routes.cart_change_url}`, { ...fetchConfig(), ...{ body } })
const body = JSON.stringify({
.then((response) => {
line,
return response.text();
quantity,
})
sections: this.getSectionsToRender().map((section) => section.section),
.then((state) => {
sections_url: window.location.pathname,
const parsedState = JSON.parse(state);
});


CartPerformance.measure(`${eventTarget}:paint-updated-sections`, () => {
fetch(`${routes.cart_change_url}`, { ...fetchConfig(), body })
const quantityElement =
.then((response) => response.text())
document.getElementById(`Quantity-${line}`) || document.getElementById(`Drawer-quantity-${line}`);
.then((state) => {
const items = document.querySelectorAll('.cart-item');
const parsedState = JSON.parse(state);


if (parsedState.errors) {
CartPerformance.measure(`${eventTarget}:paint-updated-sections`, () => {
quantityElement.value = quantityElement.getAttribute('value');
// Handle errors
this.updateLiveRegions(line, parsedState.errors);
if (parsedState.errors) {
return;
if (quantityElement) quantityElement.value = quantityElement.getAttribute('value');
}
this.updateLiveRegions(line, parsedState.errors);
return;
}


this.classList.toggle('is-empty', parsedState.item_count === 0);
// Update empty state classes
const cartDrawerWrapper = document.querySelector('cart-drawer');
const cartDrawerWrapper = document.querySelector('cart-drawer');
const cartFooter = document.getElementById('main-cart-footer');
const cartFooter = document.getElementById('main-cart-footer');
const isEmpty = parsedState.item_count === 0;


if (cartFooter) cartFooter.classList.toggle('is-empty', parsedState.item_count === 0);
this.classList.toggle('is-empty', isEmpty);
if (cartDrawerWrapper) cartDrawerWrapper.classList.toggle('is-empty', parsedState.item_count === 0);
if (cartFooter) cartFooter.classList.toggle('is-empty', isEmpty);
if (cartDrawerWrapper) cartDrawerWrapper.classList.toggle('is-empty', isEmpty);


this.getSectionsToRender().forEach((section) => {
// Update only existing sections
const elementToReplace =
this.getSectionsToRender().forEach((section) => {
document.getElementById(section.id).querySelector(section.selector) ||
const sectionHTML = parsedState.sections?.[section.section];
document.getElementById(section.id);
if (!sectionHTML) return;
elementToReplace.innerHTML = this.getSectionInnerHTML(

parsedState.sections[section.section],
const elementToReplace =
section.selector
document.querySelector(section.selector) || document.getElementById(section.id);
);
if (!elementToReplace) return;
});

const updatedValue = parsedState.items[line - 1] ? parsedState.items[line - 1].quantity : undefined;
elementToReplace.innerHTML = this.getSectionInnerHTML(sectionHTML, section.selector);
let message = '';
});
if (items.length === parsedState.items.length && updatedValue !== parseInt(quantityElement.value)) {

if (typeof updatedValue === 'undefined') {
// Update quantity messages
message = window.cartStrings.error;
const items = document.querySelectorAll('.cart-item');
} else {
const updatedValue = parsedState.items[line - 1]?.quantity;
message = window.cartStrings.quantityError.replace('[quantity]', updatedValue);
let message = '';
}

}
if (items.length === parsedState.items.length && updatedValue !== parseInt(quantityElement.value)) {
this.updateLiveRegions(line, message);
message = updatedValue === undefined
? window.cartStrings.error
: window.cartStrings.quantityError.replace('[quantity]', updatedValue);
}
this.updateLiveRegions(line, message);


// Focus trapping after DOM paints
requestAnimationFrame(() => {
const lineItem =
const lineItem =
document.getElementById(`CartItem-${line}`) || document.getElementById(`CartDrawer-Item-${line}`);
document.getElementById(`CartItem-${line}`) || document.getElementById(`CartDrawer-Item-${line}`);
if (lineItem && lineItem.querySelector(`[name="${name}"]`)) {

cartDrawerWrapper
if (lineItem?.querySelector(`[name="${name}"]`) && cartDrawerWrapper) {
? trapFocus(cartDrawerWrapper, lineItem.querySelector(`[name="${name}"]`))
trapFocus(cartDrawerWrapper, lineItem.querySelector(`[name="${name}"]`));
: lineItem.querySelector(`[name="${name}"]`).focus();
} else if (isEmpty && cartDrawerWrapper) {
} else if (parsedState.item_count === 0 && cartDrawerWrapper) {
const emptyFocus = cartDrawerWrapper.querySelector('.drawer__inner-empty a');
trapFocus(cartDrawerWrapper.querySelector('.drawer__inner-empty'), cartDrawerWrapper.querySelector('a'));
if (emptyFocus) trapFocus(cartDrawerWrapper.querySelector('.drawer__inner-empty'), emptyFocus);
} else if (document.querySelector('.cart-item') && cartDrawerWrapper) {
} else if (document.querySelector('.cart-item') && cartDrawerWrapper) {
trapFocus(cartDrawerWrapper, document.querySelector('.cart-item__name'));
trapFocus(cartDrawerWrapper, document.querySelector('.cart-item__name'));
} else if (lineItem?.querySelector(`[name="${name}"]`)) {
lineItem.querySelector(`[name="${name}"]`).focus();
}
}
});
});
});


publish(PUB_SUB_EVENTS.cartUpdate, { source: 'cart-items', cartData: parsedState, variantId: variantId });
publish(PUB_SUB_EVENTS.cartUpdate, {
})
source: 'cart-items',
.catch(() => {
cartData: parsedState,
this.querySelectorAll('.loading__spinner').forEach((overlay) => overlay.classList.add('hidden'));
variantId: variantId,
const errors = document.getElementById('cart-errors') || document.getElementById('CartDrawer-CartErrors');
errors.textContent = window.cartStrings.error;
})
.finally(() => {
this.disableLoading(line);
CartPerformance.measureFromMarker(`${eventTarget}:user-action`, cartPerformanceUpdateMarker);
});
});
}
})
.catch(() => {
this.querySelectorAll('.loading__spinner').forEach((overlay) => overlay.classList.add('hidden'));
const errors = document.getElementById('cart-errors') || document.getElementById('CartDrawer-CartErrors');
if (errors) errors.textContent = window.cartStrings.error;
})
.finally(() => {
this.disableLoading(line);
CartPerformance.measureFromMarker(`${eventTarget}:user-action`, cartPerformanceUpdateMarker);
});
}



updateLiveRegions(line, message) {
updateLiveRegions(line, message) {
const lineItemError =
const lineItemError =
document.getElementById(`Line-item-error-${line}`) || document.getElementById(`CartDrawer-LineItemError-${line}`);
document.getElementById(`Line-item-error-${line}`) || document.getElementById(`CartDrawer-LineItemError-${line}`);
if (lineItemError) lineItemError.querySelector('.cart-item__error-text').textContent = message;
if (lineItemError) lineItemError.querySelector('.cart-item__error-text').textContent = message;


this.lineItemStatusElement.setAttribute('aria-hidden', true);
this.lineItemStatusElement.setAttribute('aria-hidden', true);


const cartStatus =
const cartStatus =
document.getElementById('cart-live-region-text') || document.getElementById('CartDrawer-LiveRegionText');
document.getElementById('cart-live-region-text') || document.getElementById('CartDrawer-LiveRegionText');
cartStatus.setAttribute('aria-hidden', false);
cartStatus.setAttribute('aria-hidden', false);


setTimeout(() => {
setTimeout(() => {
cartStatus.setAttribute('aria-hidden', true);
cartStatus.setAttribute('aria-hidden', true);
}, 1000);
}, 1000);
}
}


getSectionInnerHTML(html, selector) {
getSectionInnerHTML(html, selector) {
return new DOMParser().parseFromString(html, 'text/html').querySelector(selector).innerHTML;
return new DOMParser().parseFromString(html, 'text/html').querySelector(selector).innerHTML;
}
}


enableLoading(line) {
enableLoading(line) {
const mainCartItems = document.getElementById('main-cart-items') || document.getElementById('CartDrawer-CartItems');
const mainCartItems = document.getElementById('main-cart-items') || document.getElementById('CartDrawer-CartItems');
mainCartItems.classList.add('cart__items--disabled');
mainCartItems.classList.add('cart__items--disabled');


const cartItemElements = this.querySelectorAll(`#CartItem-${line} .loading__spinner`);
const cartItemElements = this.querySelectorAll(`#CartItem-${line} .loading__spinner`);
const cartDrawerItemElements = this.querySelectorAll(`#CartDrawer-Item-${line} .loading__spinner`);
const cartDrawerItemElements = this.querySelectorAll(`#CartDrawer-Item-${line} .loading__spinner`);


[...cartItemElements, ...cartDrawerItemElements].forEach((overlay) => overlay.classList.remove('hidden'));
[...cartItemElements, ...cartDrawerItemElements].forEach((overlay) => overlay.classList.remove('hidden'));


document.activeElement.blur();
document.activeElement.blur();
this.lineItemStatusElement.setAttribute('aria-hidden', false);
this.lineItemStatusElement.setAttribute('aria-hidden', false);
}
}


disableLoading(line) {
disableLoading(line) {
const mainCartItems = document.getElementById('main-cart-items') || document.getElementById('CartDrawer-CartItems');
const mainCartItems = document.getElementById('main-cart-items') || document.getElementById('CartDrawer-CartItems');
mainCartItems.classList.remove('cart__items--disabled');
mainCartItems.classList.remove('cart__items--disabled');


const cartItemElements = this.querySelectorAll(`#CartItem-${line} .loading__spinner`);
const cartItemElements = this.querySelectorAll(`#CartItem-${line} .loading__spinner`);
const cartDrawerItemElements = this.querySelectorAll(`#CartDrawer-Item-${line} .loading__spinner`);
const cartDrawerItemElements = this.querySelectorAll(`#CartDrawer-Item-${line} .loading__spinner`);


cartItemElements.forEach((overlay) => overlay.classList.add('hidden'));
cartItemElements.forEach((overlay) => overlay.classList.add('hidden'));
cartDrawerItemElements.forEach((overlay) => overlay.classList.add('hidden'));
cartDrawerItemElements.forEach((overlay) => overlay.classList.add('hidden'));
}
}
}
}


customElements.define('cart-items', CartItems);
customElements.define('cart-items', CartItems);


if (!customElements.get('cart-note')) {
if (!customElements.get('cart-note')) {
customElements.define(
customElements.define(
'cart-note',
'cart-note',
class CartNote extends HTMLElement {
class CartNote extends HTMLElement {
constructor() {
constructor() {
super();
super();


this.addEventListener(
this.addEventListener(
'input',
'input',
debounce((event) => {
debounce((event) => {
const body = JSON.stringify({ note: event.target.value });
const body = JSON.stringify({ note: event.target.value });
fetch(`${routes.cart_update_url}`, { ...fetchConfig(), ...{ body } }).then(() =>
fetch(`${routes.cart_update_url}`, { ...fetchConfig(), ...{ body } }).then(() =>
CartPerformance.measureFromEvent('note-update:user-action', event)
CartPerformance.measureFromEvent('note-update:user-action', event)
);
);
}, ON_CHANGE_DEBOUNCE_TIMER)
}, ON_CHANGE_DEBOUNCE_TIMER)
);
);
}
}
}
}
);
);
}
}

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