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https://github.com/kremalicious/metamask-extension.git
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65 lines
2.4 KiB
JavaScript
65 lines
2.4 KiB
JavaScript
import { useSelector } from 'react-redux';
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import { GAS_ESTIMATE_TYPES } from '../../shared/constants/gas';
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import {
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getEstimatedGasFeeTimeBounds,
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getGasEstimateType,
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getGasFeeEstimates,
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} from '../ducks/metamask/metamask';
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import { checkNetworkAndAccountSupports1559 } from '../selectors';
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import { useSafeGasEstimatePolling } from './useSafeGasEstimatePolling';
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/**
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* @typedef {keyof typeof GAS_ESTIMATE_TYPES} GasEstimateTypes
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*/
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/**
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* @typedef {object} GasEstimates
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* @property {GasEstimateTypes} gasEstimateType - The type of estimate provided
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* @property {import(
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* '@metamask/controllers'
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* ).GasFeeState['gasFeeEstimates']} gasFeeEstimates - The estimate object
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* @property {import(
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* '@metamask/controllers'
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* ).GasFeeState['estimatedGasFeeTimeBounds']} [estimatedGasFeeTimeBounds] -
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* estimated time boundaries for fee-market type estimates
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* @property {boolean} isGasEstimateLoading - indicates whether the gas
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* estimates are currently loading.
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*/
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/**
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* Gets the current gasFeeEstimates from state and begins polling for new
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* estimates. When this hook is removed from the tree it will signal to the
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* GasFeeController that it is done requiring new gas estimates. Also checks
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* the returned gas estimate for validity on the current network.
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*
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* @returns {GasFeeEstimates} - GasFeeEstimates object
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*/
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export function useGasFeeEstimates() {
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const networkAndAccountSupports1559 = useSelector(
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checkNetworkAndAccountSupports1559,
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);
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const gasEstimateType = useSelector(getGasEstimateType);
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const gasFeeEstimates = useSelector(getGasFeeEstimates);
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const estimatedGasFeeTimeBounds = useSelector(getEstimatedGasFeeTimeBounds);
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useSafeGasEstimatePolling();
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// We consider the gas estimate to be loading if the gasEstimateType is
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// 'NONE' or if the current gasEstimateType cannot be supported by the current
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// network
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const isEIP1559TolerableEstimateType =
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gasEstimateType === GAS_ESTIMATE_TYPES.FEE_MARKET ||
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gasEstimateType === GAS_ESTIMATE_TYPES.ETH_GASPRICE;
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const isGasEstimatesLoading =
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gasEstimateType === GAS_ESTIMATE_TYPES.NONE ||
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(networkAndAccountSupports1559 && !isEIP1559TolerableEstimateType) ||
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(!networkAndAccountSupports1559 &&
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gasEstimateType === GAS_ESTIMATE_TYPES.FEE_MARKET);
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return {
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gasFeeEstimates,
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gasEstimateType,
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estimatedGasFeeTimeBounds,
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isGasEstimatesLoading,
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};
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}
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