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metamask-extension/ui/pages/send/send.js

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JavaScript
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import React, { useEffect, useCallback } from 'react';
import { useDispatch, useSelector } from 'react-redux';
import { useHistory, useLocation } from 'react-router-dom';
import {
getIsUsingMyAccountForRecipientSearch,
getRecipient,
getRecipientUserInput,
getSendStage,
initializeSendState,
resetRecipientInput,
resetSendState,
SEND_STAGES,
updateRecipient,
updateRecipientUserInput,
} from '../../ducks/send';
import { getCurrentChainId, isCustomPriceExcessive } from '../../selectors';
import { getSendHexDataFeatureFlagState } from '../../ducks/metamask/metamask';
import { showQrScanner } from '../../store/actions';
import { useMetricEvent } from '../../hooks/useMetricEvent';
import SendHeader from './send-header';
import AddRecipient from './send-content/add-recipient';
import SendContent from './send-content';
import SendFooter from './send-footer';
import EnsInput from './send-content/add-recipient/ens-input';
const sendSliceIsCustomPriceExcessive = (state) =>
isCustomPriceExcessive(state, true);
export default function SendTransactionScreen() {
const history = useHistory();
const chainId = useSelector(getCurrentChainId);
const stage = useSelector(getSendStage);
const gasIsExcessive = useSelector(sendSliceIsCustomPriceExcessive);
const isUsingMyAccountsForRecipientSearch = useSelector(
getIsUsingMyAccountForRecipientSearch,
);
const recipient = useSelector(getRecipient);
const showHexData = useSelector(getSendHexDataFeatureFlagState);
const userInput = useSelector(getRecipientUserInput);
const location = useLocation();
const trackUsedQRScanner = useMetricEvent({
eventOpts: {
category: 'Transactions',
action: 'Edit Screen',
name: 'Used QR scanner',
},
});
const dispatch = useDispatch();
const cleanup = useCallback(() => {
dispatch(resetSendState());
}, [dispatch]);
useEffect(() => {
if (chainId !== undefined) {
dispatch(initializeSendState());
window.addEventListener('beforeunload', cleanup);
}
}, [chainId, dispatch, cleanup]);
useEffect(() => {
if (location.search === '?scan=true') {
dispatch(showQrScanner());
// Clear the queryString param after showing the modal
const cleanUrl = window.location.href.split('?')[0];
window.history.pushState({}, null, `${cleanUrl}`);
window.location.hash = '#send';
}
}, [location, dispatch]);
useEffect(() => {
return () => {
dispatch(resetSendState());
window.removeEventListener('beforeunload', cleanup);
};
}, [dispatch, cleanup]);
let content;
if ([SEND_STAGES.EDIT, SEND_STAGES.DRAFT].includes(stage)) {
content = (
<>
<SendContent
showHexData={showHexData}
gasIsExcessive={gasIsExcessive}
/>
<SendFooter key="send-footer" history={history} />
</>
);
} else {
content = <AddRecipient />;
}
return (
<div className="page-container">
<SendHeader history={history} />
<EnsInput
userInput={userInput}
className="send__to-row"
onChange={(address) => dispatch(updateRecipientUserInput(address))}
onValidAddressTyped={(address) =>
dispatch(updateRecipient({ address, nickname: '' }))
}
internalSearch={isUsingMyAccountsForRecipientSearch}
selectedAddress={recipient.address}
selectedName={recipient.nickname}
onPaste={(text) => updateRecipient({ address: text, nickname: '' })}
onReset={() => dispatch(resetRecipientInput())}
scanQrCode={() => {
trackUsedQRScanner();
dispatch(showQrScanner());
}}
/>
{content}
</div>
);
}