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import { colors } from '@0x/react-shared';
import { errorUtils } from '@0x/utils';
import RaisedButton from 'material-ui/RaisedButton';
import * as React from 'react';
const COMPLETE_STATE_SHOW_LENGTH_MS = 2000;
enum ButtonState {
Ready,
Loading,
Complete,
}
interface LifeCycleRaisedButtonProps {
isHidden?: boolean;
isDisabled?: boolean;
isPrimary?: boolean;
labelReady: React.ReactNode | string;
labelLoading: React.ReactNode | string;
labelComplete: React.ReactNode | string;
onClickAsyncFn: () => Promise<boolean>;
backgroundColor?: string;
labelColor?: string;
}
interface LifeCycleRaisedButtonState {
buttonState: ButtonState;
}
export class LifeCycleRaisedButton extends React.Component<LifeCycleRaisedButtonProps, LifeCycleRaisedButtonState> {
public static defaultProps: Partial<LifeCycleRaisedButtonProps> = {
isDisabled: false,
backgroundColor: colors.white,
labelColor: colors.darkGrey,
};
private _buttonTimeoutId: number;
private _didUnmount: boolean;
constructor(props: LifeCycleRaisedButtonProps) {
super(props);
this.state = {
buttonState: ButtonState.Ready,
};
}
public componentWillUnmount(): void {
clearTimeout(this._buttonTimeoutId);
this._didUnmount = true;
}
public render(): React.ReactNode {
if (this.props.isHidden) {
return <span />;
}
let label;
switch (this.state.buttonState) {
case ButtonState.Ready:
label = this.props.labelReady;
break;
case ButtonState.Loading:
label = this.props.labelLoading;
break;
case ButtonState.Complete:
label = this.props.labelComplete;
break;
default:
throw errorUtils.spawnSwitchErr('ButtonState', this.state.buttonState);
}
return (
<RaisedButton
primary={this.props.isPrimary}
label={label}
style={{ width: '100%' }}
backgroundColor={this.props.backgroundColor}
labelColor={this.props.labelColor}
onClick={this.onClickAsync.bind(this)}
disabled={this.props.isDisabled || this.state.buttonState !== ButtonState.Ready}
/>
);
}
public async onClickAsync(): Promise<void> {
this.setState({
buttonState: ButtonState.Loading,
});
const didSucceed = await this.props.onClickAsyncFn();
if (this._didUnmount) {
return; // noop since unmount called before async callback returned.
}
if (didSucceed) {
this.setState({
buttonState: ButtonState.Complete,
});
this._buttonTimeoutId = window.setTimeout(() => {
this.setState({
buttonState: ButtonState.Ready,
});
}, COMPLETE_STATE_SHOW_LENGTH_MS);
} else {
this.setState({
buttonState: ButtonState.Ready,
});
}
}
}
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