106 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			106 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
import * as _ from 'lodash';
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import RaisedButton from 'material-ui/RaisedButton';
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import * as React from 'react';
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import {Blockchain} from 'ts/blockchain';
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import {Token} from 'ts/types';
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import {utils} from 'ts/utils/utils';
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const COMPLETE_STATE_SHOW_LENGTH_MS = 2000;
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enum ButtonState {
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  READY,
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  LOADING,
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  COMPLETE,
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}
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interface LifeCycleRaisedButtonProps {
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    isHidden?: boolean;
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    isDisabled?: boolean;
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    isPrimary?: boolean;
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    labelReady: React.ReactNode|string;
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    labelLoading: React.ReactNode|string;
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    labelComplete: React.ReactNode|string;
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    onClickAsyncFn: () => boolean;
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    backgroundColor?: string;
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    labelColor?: string;
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}
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interface LifeCycleRaisedButtonState {
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    buttonState: ButtonState;
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}
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export class LifeCycleRaisedButton extends
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    React.Component<LifeCycleRaisedButtonProps, LifeCycleRaisedButtonState> {
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    public static defaultProps: Partial<LifeCycleRaisedButtonProps> = {
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        isDisabled: false,
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        backgroundColor: 'white',
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        labelColor: 'rgb(97, 97, 97)',
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    };
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    private buttonTimeoutId: number;
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    private didUnmount: boolean;
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    constructor(props: LifeCycleRaisedButtonProps) {
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        super(props);
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        this.state = {
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            buttonState: ButtonState.READY,
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        };
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    }
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    public componentWillUnmount() {
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        clearTimeout(this.buttonTimeoutId);
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        this.didUnmount = true;
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    }
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    public render() {
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        if (this.props.isHidden) {
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            return <span />;
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        }
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        let label;
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        switch (this.state.buttonState) {
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            case ButtonState.READY:
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                label = this.props.labelReady;
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                break;
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            case ButtonState.LOADING:
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                label = this.props.labelLoading;
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                break;
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            case ButtonState.COMPLETE:
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                label = this.props.labelComplete;
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                break;
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            default:
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                throw utils.spawnSwitchErr('ButtonState', this.state.buttonState);
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        }
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        return (
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            <RaisedButton
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                primary={this.props.isPrimary}
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                label={label}
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                style={{width: '100%'}}
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                backgroundColor={this.props.backgroundColor}
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                labelColor={this.props.labelColor}
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                onTouchTap={this.onClickAsync.bind(this)}
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                disabled={this.props.isDisabled || this.state.buttonState !== ButtonState.READY}
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            />
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        );
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    }
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    public async onClickAsync() {
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        this.setState({
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            buttonState: ButtonState.LOADING,
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        });
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        const didSucceed = await this.props.onClickAsyncFn();
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        if (this.didUnmount) {
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            return; // noop since unmount called before async callback returned.
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        }
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        if (didSucceed) {
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            this.setState({
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                buttonState: ButtonState.COMPLETE,
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            });
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            this.buttonTimeoutId = window.setTimeout(() => {
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                this.setState({
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                    buttonState: ButtonState.READY,
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                });
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            }, COMPLETE_STATE_SHOW_LENGTH_MS);
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        } else {
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            this.setState({
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                buttonState: ButtonState.READY,
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            });
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        }
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    }
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}
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