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import { colors } from '@0x/react-shared';
import * as _ from 'lodash';
import TextField from 'material-ui/TextField';
import * as moment from 'moment';
import * as React from 'react';
import { Blockchain } from 'ts/blockchain';
import { AddressInput } from 'ts/components/inputs/address_input';
import { Alert } from 'ts/components/ui/alert';
import { LifeCycleRaisedButton } from 'ts/components/ui/lifecycle_raised_button';
import { RequiredLabel } from 'ts/components/ui/required_label';
import { AlertTypes, Token, TokenByAddress } from 'ts/types';
interface NewTokenFormProps {
blockchain: Blockchain;
tokenByAddress: TokenByAddress;
onNewTokenSubmitted: (token: Token) => void;
}
interface NewTokenFormState {
globalErrMsg: string;
name: string;
nameErrText: string;
symbol: string;
symbolErrText: string;
address: string;
shouldShowAddressIncompleteErr: boolean;
decimals: string;
decimalsErrText: string;
}
export class NewTokenForm extends React.Component<NewTokenFormProps, NewTokenFormState> {
constructor(props: NewTokenFormProps) {
super(props);
this.state = {
address: '',
globalErrMsg: '',
name: '',
nameErrText: '',
shouldShowAddressIncompleteErr: false,
symbol: '',
symbolErrText: '',
decimals: '18',
decimalsErrText: '',
};
}
public render(): React.ReactNode {
return (
<div className="mx-auto pb2" style={{ width: 256 }}>
<div>
<TextField
floatingLabelFixed={true}
floatingLabelStyle={{ color: colors.grey }}
floatingLabelText={<RequiredLabel label="Name" />}
value={this.state.name}
errorText={this.state.nameErrText}
onChange={this._onTokenNameChanged.bind(this)}
/>
</div>
<div>
<TextField
floatingLabelFixed={true}
floatingLabelStyle={{ color: colors.grey }}
floatingLabelText={<RequiredLabel label="Symbol" />}
value={this.state.symbol}
errorText={this.state.symbolErrText}
onChange={this._onTokenSymbolChanged.bind(this)}
/>
</div>
<div>
<AddressInput
isRequired={true}
label="Contract address"
initialAddress=""
shouldShowIncompleteErrs={this.state.shouldShowAddressIncompleteErr}
updateAddress={this._onTokenAddressChanged.bind(this)}
/>
</div>
<div>
<TextField
floatingLabelFixed={true}
floatingLabelStyle={{ color: colors.grey }}
floatingLabelText={<RequiredLabel label="Decimals" />}
value={this.state.decimals}
errorText={this.state.decimalsErrText}
onChange={this._onTokenDecimalsChanged.bind(this)}
/>
</div>
<div className="pt2 mx-auto" style={{ width: 120 }}>
<LifeCycleRaisedButton
labelReady="Add"
labelLoading="Adding..."
labelComplete="Added!"
onClickAsyncFn={this._onAddNewTokenClickAsync.bind(this)}
/>
</div>
{this.state.globalErrMsg !== '' && <Alert type={AlertTypes.ERROR} message={this.state.globalErrMsg} />}
</div>
);
}
private async _onAddNewTokenClickAsync(): Promise<void> {
// Trigger validation of name and symbol
this._onTokenNameChanged(undefined, this.state.name);
this._onTokenSymbolChanged(undefined, this.state.symbol);
this._onTokenDecimalsChanged(undefined, this.state.decimals);
const isAddressIncomplete = this.state.address === '';
let doesContractExist = false;
if (!isAddressIncomplete) {
doesContractExist = await this.props.blockchain.doesContractExistAtAddressAsync(this.state.address);
}
let hasBalanceAllowanceErr = false;
if (doesContractExist) {
try {
await this.props.blockchain.getCurrentUserTokenBalanceAndAllowanceAsync(this.state.address);
} catch (err) {
hasBalanceAllowanceErr = true;
}
}
let globalErrMsg = '';
if (
this.state.nameErrText !== '' ||
this.state.symbolErrText !== '' ||
this.state.decimalsErrText !== '' ||
isAddressIncomplete
) {
globalErrMsg = 'Please fix the above issues';
} else if (!doesContractExist) {
globalErrMsg = 'No contract found at supplied address';
} else if (hasBalanceAllowanceErr) {
globalErrMsg = 'Unsuccessful call to `balanceOf` and/or `allowance` on supplied contract address';
} else if (!isAddressIncomplete && !_.isUndefined(this.props.tokenByAddress[this.state.address])) {
globalErrMsg = 'A token already exists with this address';
}
if (globalErrMsg !== '') {
this.setState({
globalErrMsg,
shouldShowAddressIncompleteErr: isAddressIncomplete,
});
return;
}
const newToken: Token = {
address: this.state.address,
decimals: _.parseInt(this.state.decimals),
iconUrl: undefined,
name: this.state.name,
symbol: this.state.symbol.toUpperCase(),
trackedTimestamp: moment().unix(),
isRegistered: false,
};
this.props.onNewTokenSubmitted(newToken);
}
private _onTokenNameChanged(_event: any, name: string): void {
let nameErrText = '';
const maxLength = 30;
const tokens = _.values(this.props.tokenByAddress);
const tokenWithNameIfExists = _.find(tokens, { name });
const doesTokenWithNameExists = !_.isUndefined(tokenWithNameIfExists);
if (name === '') {
nameErrText = 'Name is required';
} else if (!this._isValidName(name)) {
nameErrText = 'Name should only contain letters, digits and spaces';
} else if (name.length > maxLength) {
nameErrText = `Max length is ${maxLength}`;
} else if (doesTokenWithNameExists) {
nameErrText = 'Token with this name already exists';
}
this.setState({
name,
nameErrText,
});
}
private _onTokenSymbolChanged(_event: any, symbol: string): void {
let symbolErrText = '';
const maxLength = 5;
const tokens = _.values(this.props.tokenByAddress);
const doesTokenWithSymbolExists = !_.isUndefined(_.find(tokens, { symbol }));
if (symbol === '') {
symbolErrText = 'Symbol is required';
} else if (!this._isAlphanumeric(symbol)) {
symbolErrText = 'Can only include alphanumeric characters';
} else if (symbol.length > maxLength) {
symbolErrText = `Max length is ${maxLength}`;
} else if (doesTokenWithSymbolExists) {
symbolErrText = 'Token with symbol already exists';
}
this.setState({
symbol,
symbolErrText,
});
}
private _onTokenDecimalsChanged(_event: any, decimals: string): void {
let decimalsErrText = '';
const maxLength = 2;
if (decimals === '') {
decimalsErrText = 'Decimals is required';
} else if (!this._isInteger(decimals)) {
decimalsErrText = 'Must be an integer';
} else if (decimals.length > maxLength) {
decimalsErrText = `Max length is ${maxLength}`;
}
this.setState({
decimals,
decimalsErrText,
});
}
private _onTokenAddressChanged(address?: string): void {
if (!_.isUndefined(address)) {
this.setState({
address,
});
}
}
private _isValidName(input: string): boolean {
return /^[a-z0-9 ]+$/i.test(input);
}
private _isInteger(input: string): boolean {
return /^[0-9]+$/i.test(input);
}
private _isAlphanumeric(input: string): boolean {
return /^[a-zA-Z0-9]+$/i.test(input);
}
}
|
