1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
import { colors } from '@0xproject/react-shared';
import { BigNumber } from '@0xproject/utils';
import * as _ from 'lodash';
import TextField from 'material-ui/TextField';
import * as React from 'react';
import { RequiredLabel } from 'ts/components/ui/required_label';
import { ValidatedBigNumberCallback } from 'ts/types';
import { utils } from 'ts/utils/utils';
interface BalanceBoundedInputProps {
label?: string;
balance: BigNumber;
amount?: BigNumber;
hintText?: string;
onChange: ValidatedBigNumberCallback;
onErrorMsgChange?: (errorMsg: React.ReactNode) => void;
shouldShowIncompleteErrs?: boolean;
shouldCheckBalance: boolean;
validate?: (amount: BigNumber) => React.ReactNode;
isDisabled?: boolean;
shouldShowErrs?: boolean;
shouldShowUnderline?: boolean;
inputStyle?: React.CSSProperties;
inputHintStyle?: React.CSSProperties;
}
interface BalanceBoundedInputState {
errMsg: React.ReactNode;
amountString: string;
}
export class BalanceBoundedInput extends React.Component<BalanceBoundedInputProps, BalanceBoundedInputState> {
public static defaultProps: Partial<BalanceBoundedInputProps> = {
shouldShowIncompleteErrs: false,
isDisabled: false,
shouldShowErrs: true,
hintText: 'amount',
onErrorMsgChange: _.noop,
shouldShowUnderline: true,
};
constructor(props: BalanceBoundedInputProps) {
super(props);
const amountString = this.props.amount ? this.props.amount.toString() : '';
this.state = {
errMsg: this._validate(amountString, props.balance),
amountString,
};
}
public componentWillReceiveProps(nextProps: BalanceBoundedInputProps): void {
if (nextProps === this.props) {
return;
}
const isCurrentAmountNumeric = utils.isNumeric(this.state.amountString);
if (!_.isUndefined(nextProps.amount)) {
let shouldResetState = false;
if (!isCurrentAmountNumeric) {
shouldResetState = true;
} else {
const currentAmount = new BigNumber(this.state.amountString);
if (!currentAmount.eq(nextProps.amount) || !nextProps.balance.eq(this.props.balance)) {
shouldResetState = true;
}
}
if (shouldResetState) {
const amountString = nextProps.amount.toString();
this._setAmountState(amountString, nextProps.balance);
}
} else if (isCurrentAmountNumeric) {
const amountString = '';
this._setAmountState(amountString, nextProps.balance);
}
}
public render(): React.ReactNode {
let errorText;
if (this.props.shouldShowErrs) {
errorText =
this.props.shouldShowIncompleteErrs && this.state.amountString === ''
? 'This field is required'
: this.state.errMsg;
}
let label: React.ReactNode | string = '';
if (!_.isUndefined(this.props.label)) {
label = <RequiredLabel label={this.props.label} />;
}
return (
<TextField
fullWidth={true}
floatingLabelText={label}
floatingLabelFixed={true}
floatingLabelStyle={{ color: colors.grey, width: 206 }}
errorText={errorText}
value={this.state.amountString}
hintText={<span style={{ textTransform: 'capitalize' }}>{this.props.hintText}</span>}
onChange={this._onValueChange.bind(this)}
underlineStyle={{ width: 'calc(100% + 50px)' }}
inputStyle={this.props.inputStyle}
hintStyle={this.props.inputHintStyle}
underlineShow={this.props.shouldShowUnderline}
disabled={this.props.isDisabled}
/>
);
}
private _onValueChange(_event: any, amountString: string): void {
this._setAmountState(amountString, this.props.balance, () => {
const isValid = _.isUndefined(this._validate(amountString, this.props.balance));
const isPositiveNumber = utils.isNumeric(amountString) && !_.includes(amountString, '-');
if (isPositiveNumber) {
this.props.onChange(isValid, new BigNumber(amountString));
} else {
this.props.onChange(isValid);
}
});
}
private _validate(amountString: string, balance: BigNumber): React.ReactNode {
if (!utils.isNumeric(amountString)) {
return amountString !== '' ? 'Must be a number' : '';
}
const amount = new BigNumber(amountString);
if (amount.eq(0)) {
return 'Cannot be zero';
}
if (this.props.shouldCheckBalance && amount.gt(balance)) {
return <span>Insufficient balance.</span>;
}
const errMsg = _.isUndefined(this.props.validate) ? undefined : this.props.validate(amount);
return errMsg;
}
private _setAmountState(amount: string, balance: BigNumber, callback: () => void = _.noop): void {
const errorMsg = this._validate(amount, balance);
this.props.onErrorMsgChange(errorMsg);
this.setState(
{
amountString: amount,
errMsg: errorMsg,
},
callback,
);
}
}
|
