@reown/appkit-scaffold-ui
Version:
The full stack toolkit to build onchain app UX.
415 lines • 16.5 kB
JavaScript
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
import { LitElement, html } from 'lit';
import { property, state } from 'lit/decorators.js';
import { NumberUtil } from '@reown/appkit-common';
import { AccountController, ChainController, CoreHelperUtil, EventsController, ModalController, RouterController, SwapController, getPreferredAccountType } from '@reown/appkit-controllers';
import { customElement } from '@reown/appkit-ui';
import '@reown/appkit-ui/wui-button';
import '@reown/appkit-ui/wui-flex';
import '@reown/appkit-ui/wui-icon';
import '@reown/appkit-ui/wui-text';
import { W3mFrameRpcConstants } from '@reown/appkit-wallet/utils';
import '../../partials/w3m-swap-details/index.js';
import '../../partials/w3m-swap-input-skeleton/index.js';
import '../../partials/w3m-swap-input/index.js';
import styles from './styles.js';
let W3mSwapView = class W3mSwapView extends LitElement {
constructor() {
super();
this.unsubscribe = [];
this.initialParams = RouterController.state.data?.swap;
this.detailsOpen = false;
this.caipAddress = AccountController.state.caipAddress;
this.caipNetworkId = ChainController.state.activeCaipNetwork?.caipNetworkId;
this.initialized = SwapController.state.initialized;
this.loadingQuote = SwapController.state.loadingQuote;
this.loadingPrices = SwapController.state.loadingPrices;
this.loadingTransaction = SwapController.state.loadingTransaction;
this.sourceToken = SwapController.state.sourceToken;
this.sourceTokenAmount = SwapController.state.sourceTokenAmount;
this.sourceTokenPriceInUSD = SwapController.state.sourceTokenPriceInUSD;
this.toToken = SwapController.state.toToken;
this.toTokenAmount = SwapController.state.toTokenAmount;
this.toTokenPriceInUSD = SwapController.state.toTokenPriceInUSD;
this.inputError = SwapController.state.inputError;
this.fetchError = SwapController.state.fetchError;
this.lastTokenPriceUpdate = 0;
this.minTokenPriceUpdateInterval = 10_000;
this.visibilityChangeHandler = () => {
if (document?.hidden) {
clearInterval(this.interval);
this.interval = undefined;
}
else {
this.startTokenPriceInterval();
}
};
this.startTokenPriceInterval = () => {
if (this.interval &&
Date.now() - this.lastTokenPriceUpdate < this.minTokenPriceUpdateInterval) {
return;
}
if (this.lastTokenPriceUpdate &&
Date.now() - this.lastTokenPriceUpdate > this.minTokenPriceUpdateInterval) {
this.fetchTokensAndValues();
}
clearInterval(this.interval);
this.interval = setInterval(() => {
this.fetchTokensAndValues();
}, this.minTokenPriceUpdateInterval);
};
this.watchTokensAndValues = () => {
if (!this.sourceToken || !this.toToken) {
return;
}
this.subscribeToVisibilityChange();
this.startTokenPriceInterval();
};
this.onDebouncedGetSwapCalldata = CoreHelperUtil.debounce(async () => {
await SwapController.swapTokens();
}, 200);
ChainController.subscribeKey('activeCaipNetwork', newCaipNetwork => this.onCaipNetworkChange({
newCaipNetwork,
resetSwapState: true,
initializeSwapState: false
}));
AccountController.subscribeKey('caipAddress', newCaipAddress => this.onCaipAddressChange({
newCaipAddress,
resetSwapState: true,
initializeSwapState: false
}));
this.unsubscribe.push(...[
ChainController.subscribeKey('activeCaipNetwork', newCaipNetwork => this.onCaipNetworkChange({
newCaipNetwork,
resetSwapState: false,
initializeSwapState: true
})),
AccountController.subscribeKey('caipAddress', newCaipAddress => this.onCaipAddressChange({
newCaipAddress,
resetSwapState: false,
initializeSwapState: true
})),
ModalController.subscribeKey('open', isOpen => {
if (!isOpen) {
SwapController.resetState();
}
}),
RouterController.subscribeKey('view', newRoute => {
if (!newRoute.includes('Swap')) {
SwapController.resetValues();
}
}),
SwapController.subscribe(newState => {
this.initialized = newState.initialized;
this.loadingQuote = newState.loadingQuote;
this.loadingPrices = newState.loadingPrices;
this.loadingTransaction = newState.loadingTransaction;
this.sourceToken = newState.sourceToken;
this.sourceTokenAmount = newState.sourceTokenAmount;
this.sourceTokenPriceInUSD = newState.sourceTokenPriceInUSD;
this.toToken = newState.toToken;
this.toTokenAmount = newState.toTokenAmount;
this.toTokenPriceInUSD = newState.toTokenPriceInUSD;
this.inputError = newState.inputError;
this.fetchError = newState.fetchError;
if (newState.sourceToken && newState.toToken) {
this.watchTokensAndValues();
}
})
]);
}
async firstUpdated() {
SwapController.initializeState();
this.watchTokensAndValues();
await this.handleSwapParameters();
}
disconnectedCallback() {
this.unsubscribe.forEach(unsubscribe => unsubscribe?.());
clearInterval(this.interval);
document?.removeEventListener('visibilitychange', this.visibilityChangeHandler);
}
render() {
return html `
<wui-flex flexDirection="column" .padding=${['0', 'l', 'l', 'l']} gap="s">
${this.initialized ? this.templateSwap() : this.templateLoading()}
</wui-flex>
`;
}
subscribeToVisibilityChange() {
document?.removeEventListener('visibilitychange', this.visibilityChangeHandler);
document?.addEventListener('visibilitychange', this.visibilityChangeHandler);
}
fetchTokensAndValues() {
SwapController.getNetworkTokenPrice();
SwapController.getMyTokensWithBalance();
SwapController.swapTokens();
this.lastTokenPriceUpdate = Date.now();
}
templateSwap() {
return html `
<wui-flex flexDirection="column" gap="s">
<wui-flex flexDirection="column" alignItems="center" gap="xs" class="swap-inputs-container">
${this.templateTokenInput('sourceToken', this.sourceToken)}
${this.templateTokenInput('toToken', this.toToken)} ${this.templateReplaceTokensButton()}
</wui-flex>
${this.templateDetails()} ${this.templateActionButton()}
</wui-flex>
`;
}
actionButtonLabel() {
if (this.fetchError) {
return 'Swap';
}
if (!this.sourceToken || !this.toToken) {
return 'Select token';
}
if (!this.sourceTokenAmount) {
return 'Enter amount';
}
if (this.inputError) {
return this.inputError;
}
return 'Review swap';
}
templateReplaceTokensButton() {
return html `
<wui-flex class="replace-tokens-button-container">
<button =${this.onSwitchTokens.bind(this)}>
<wui-icon name="recycleHorizontal" color="fg-250" size="lg"></wui-icon>
</button>
</wui-flex>
`;
}
templateLoading() {
return html `
<wui-flex flexDirection="column" gap="l">
<wui-flex flexDirection="column" alignItems="center" gap="xs" class="swap-inputs-container">
<w3m-swap-input-skeleton target="sourceToken"></w3m-swap-input-skeleton>
<w3m-swap-input-skeleton target="toToken"></w3m-swap-input-skeleton>
${this.templateReplaceTokensButton()}
</wui-flex>
${this.templateActionButton()}
</wui-flex>
`;
}
templateTokenInput(target, token) {
const myToken = SwapController.state.myTokensWithBalance?.find(ct => ct?.address === token?.address);
const amount = target === 'toToken' ? this.toTokenAmount : this.sourceTokenAmount;
const price = target === 'toToken' ? this.toTokenPriceInUSD : this.sourceTokenPriceInUSD;
const marketValue = NumberUtil.parseLocalStringToNumber(amount) * price;
return html `<w3m-swap-input
.value=${target === 'toToken' ? this.toTokenAmount : this.sourceTokenAmount}
.disabled=${target === 'toToken'}
.onSetAmount=${this.handleChangeAmount.bind(this)}
target=${target}
.token=${token}
.balance=${myToken?.quantity?.numeric}
.price=${myToken?.price}
.marketValue=${marketValue}
.onSetMaxValue=${this.onSetMaxValue.bind(this)}
></w3m-swap-input>`;
}
onSetMaxValue(target, balance) {
const maxValue = NumberUtil.bigNumber(balance || '0');
this.handleChangeAmount(target, maxValue.gt(0) ? maxValue.toFixed(20) : '0');
}
templateDetails() {
if (!this.sourceToken || !this.toToken || this.inputError) {
return null;
}
return html `<w3m-swap-details .detailsOpen=${this.detailsOpen}></w3m-swap-details>`;
}
handleChangeAmount(target, value) {
SwapController.clearError();
if (target === 'sourceToken') {
SwapController.setSourceTokenAmount(value);
}
else {
SwapController.setToTokenAmount(value);
}
this.onDebouncedGetSwapCalldata();
}
templateActionButton() {
const haveNoTokenSelected = !this.toToken || !this.sourceToken;
const haveNoAmount = !this.sourceTokenAmount;
const loading = this.loadingQuote || this.loadingPrices || this.loadingTransaction;
const disabled = loading || haveNoTokenSelected || haveNoAmount || this.inputError;
return html ` <wui-flex gap="xs">
<wui-button
data-testid="swap-action-button"
class="action-button"
fullWidth
size="lg"
borderRadius="xs"
variant=${haveNoTokenSelected ? 'neutral' : 'main'}
.loading=${loading}
.disabled=${disabled}
=${this.onSwapPreview.bind(this)}
>
${this.actionButtonLabel()}
</wui-button>
</wui-flex>`;
}
onSwitchTokens() {
SwapController.switchTokens();
}
async onSwapPreview() {
if (this.fetchError) {
await SwapController.swapTokens();
}
EventsController.sendEvent({
type: 'track',
event: 'INITIATE_SWAP',
properties: {
network: this.caipNetworkId || '',
swapFromToken: this.sourceToken?.symbol || '',
swapToToken: this.toToken?.symbol || '',
swapFromAmount: this.sourceTokenAmount || '',
swapToAmount: this.toTokenAmount || '',
isSmartAccount: getPreferredAccountType(ChainController.state.activeChain) ===
W3mFrameRpcConstants.ACCOUNT_TYPES.SMART_ACCOUNT
}
});
RouterController.push('SwapPreview');
}
async handleSwapParameters() {
if (!this.initialParams) {
return;
}
if (!SwapController.state.initialized) {
const waitForInitialization = new Promise(resolve => {
const unsubscribe = SwapController.subscribeKey('initialized', initialized => {
if (initialized) {
unsubscribe?.();
resolve();
}
});
});
await waitForInitialization;
}
await this.setSwapParameters(this.initialParams);
}
async setSwapParameters({ amount, fromToken, toToken }) {
if (!SwapController.state.tokens || !SwapController.state.myTokensWithBalance) {
const waitForTokens = new Promise(resolve => {
const unsubscribe = SwapController.subscribeKey('myTokensWithBalance', tokens => {
if (tokens && tokens.length > 0) {
unsubscribe?.();
resolve();
}
});
setTimeout(() => {
unsubscribe?.();
resolve();
}, 5000);
});
await waitForTokens;
}
const allTokens = [
...(SwapController.state.tokens || []),
...(SwapController.state.myTokensWithBalance || [])
];
if (fromToken) {
const token = allTokens.find(t => t.symbol.toLowerCase() === fromToken.toLowerCase());
if (token) {
SwapController.setSourceToken(token);
}
}
if (toToken) {
const token = allTokens.find(t => t.symbol.toLowerCase() === toToken.toLowerCase());
if (token) {
SwapController.setToToken(token);
}
}
if (amount && !isNaN(Number(amount))) {
SwapController.setSourceTokenAmount(amount);
}
}
onCaipAddressChange({ newCaipAddress, resetSwapState, initializeSwapState }) {
if (this.caipAddress !== newCaipAddress) {
this.caipAddress = newCaipAddress;
if (resetSwapState) {
SwapController.resetState();
}
if (initializeSwapState) {
SwapController.initializeState();
}
}
}
onCaipNetworkChange({ newCaipNetwork, resetSwapState, initializeSwapState }) {
if (this.caipNetworkId !== newCaipNetwork?.caipNetworkId) {
this.caipNetworkId = newCaipNetwork?.caipNetworkId;
if (resetSwapState) {
SwapController.resetState();
}
if (initializeSwapState) {
SwapController.initializeState();
}
}
}
};
W3mSwapView.styles = styles;
__decorate([
property({ type: Object })
], W3mSwapView.prototype, "initialParams", void 0);
__decorate([
state()
], W3mSwapView.prototype, "interval", void 0);
__decorate([
state()
], W3mSwapView.prototype, "detailsOpen", void 0);
__decorate([
state()
], W3mSwapView.prototype, "caipAddress", void 0);
__decorate([
state()
], W3mSwapView.prototype, "caipNetworkId", void 0);
__decorate([
state()
], W3mSwapView.prototype, "initialized", void 0);
__decorate([
state()
], W3mSwapView.prototype, "loadingQuote", void 0);
__decorate([
state()
], W3mSwapView.prototype, "loadingPrices", void 0);
__decorate([
state()
], W3mSwapView.prototype, "loadingTransaction", void 0);
__decorate([
state()
], W3mSwapView.prototype, "sourceToken", void 0);
__decorate([
state()
], W3mSwapView.prototype, "sourceTokenAmount", void 0);
__decorate([
state()
], W3mSwapView.prototype, "sourceTokenPriceInUSD", void 0);
__decorate([
state()
], W3mSwapView.prototype, "toToken", void 0);
__decorate([
state()
], W3mSwapView.prototype, "toTokenAmount", void 0);
__decorate([
state()
], W3mSwapView.prototype, "toTokenPriceInUSD", void 0);
__decorate([
state()
], W3mSwapView.prototype, "inputError", void 0);
__decorate([
state()
], W3mSwapView.prototype, "fetchError", void 0);
__decorate([
state()
], W3mSwapView.prototype, "lastTokenPriceUpdate", void 0);
W3mSwapView = __decorate([
customElement('w3m-swap-view')
], W3mSwapView);
export { W3mSwapView };
//# sourceMappingURL=index.js.map