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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// <currency-amount> is used in the <template>
import "../components/currency-amount.js";
import PaymentDetailsItem from "../components/payment-details-item.js";
import paymentRequest from "../paymentRequest.js";
import PaymentStateSubscriberMixin from "../mixins/PaymentStateSubscriberMixin.js";
/**
* <order-details></order-details>
*/
export default class OrderDetails extends PaymentStateSubscriberMixin(
HTMLElement
) {
connectedCallback() {
if (!this._contents) {
let template = document.getElementById("order-details-template");
let contents = (this._contents = document.importNode(
template.content,
true
));
this._mainItemsList = contents.querySelector(".main-list");
this._footerItemsList = contents.querySelector(".footer-items-list");
this._totalAmount = contents.querySelector(
".details-total > currency-amount"
);
this.appendChild(this._contents);
}
super.connectedCallback();
}
get mainItemsList() {
return this._mainItemsList;
}
get footerItemsList() {
return this._footerItemsList;
}
get totalAmountElem() {
return this._totalAmount;
}
static _emptyList(listEl) {
while (listEl.lastChild) {
listEl.removeChild(listEl.lastChild);
}
}
static _populateList(listEl, items) {
let fragment = document.createDocumentFragment();
for (let item of items) {
let row = new PaymentDetailsItem();
row.label = item.label;
row.amountValue = item.amount.value;
row.amountCurrency = item.amount.currency;
fragment.appendChild(row);
}
listEl.appendChild(fragment);
return listEl;
}
_getAdditionalDisplayItems(state) {
let methodId = state.selectedPaymentCard;
let modifier = paymentRequest.getModifierForPaymentMethod(state, methodId);
if (modifier && modifier.additionalDisplayItems) {
return modifier.additionalDisplayItems;
}
return [];
}
render(state) {
let totalItem = paymentRequest.getTotalItem(state);
OrderDetails._emptyList(this.mainItemsList);
OrderDetails._emptyList(this.footerItemsList);
let mainItems = OrderDetails._getMainListItems(state);
if (mainItems.length) {
OrderDetails._populateList(this.mainItemsList, mainItems);
}
let footerItems = OrderDetails._getFooterListItems(state);
if (footerItems.length) {
OrderDetails._populateList(this.footerItemsList, footerItems);
}
this.totalAmountElem.value = totalItem.amount.value;
this.totalAmountElem.currency = totalItem.amount.currency;
}
/**
* Determine if a display item should belong in the footer list.
* This uses the proposed "type" property, tracked at:
* https://github.com/w3c/payment-request/issues/163
*
* @param {object} item - Data representing a PaymentItem
* @returns {boolean}
*/
static isFooterItem(item) {
return item.type == "tax";
}
static _getMainListItems(state) {
let request = state.request;
let items = request.paymentDetails.displayItems;
if (Array.isArray(items) && items.length) {
let predicate = item => !OrderDetails.isFooterItem(item);
return request.paymentDetails.displayItems.filter(predicate);
}
return [];
}
static _getFooterListItems(state) {
let request = state.request;
let items = request.paymentDetails.displayItems;
let footerItems = [];
let methodId = state.selectedPaymentCard;
if (methodId) {
let modifier = paymentRequest.getModifierForPaymentMethod(
state,
methodId
);
if (modifier && Array.isArray(modifier.additionalDisplayItems)) {
footerItems.push(...modifier.additionalDisplayItems);
}
}
if (Array.isArray(items) && items.length) {
let predicate = OrderDetails.isFooterItem;
footerItems.push(
...request.paymentDetails.displayItems.filter(predicate)
);
}
return footerItems;
}
}
customElements.define("order-details", OrderDetails);
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