StringArrFilter.tsx 6.18 KB
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import * as React from 'react';
import { Field } from 'redux-form';

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import FormGroup from '@material-ui/core/FormGroup';
import FormControlLabel from '@material-ui/core/FormControlLabel';
import FormLabel from '@material-ui/core/FormLabel';
import FormControl from '@material-ui/core/FormControl';
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import Checkbox from '@material-ui/core/Checkbox';
import IconButton from '@material-ui/core/IconButton';
import Input from '@material-ui/core/Input';
import InputLabel from '@material-ui/core/InputLabel';
import InputAdornment from '@material-ui/core/InputAdornment';
import PlusOne from '@material-ui/icons/PlusOne';
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interface IStringArrFilterInternal extends React.ClassAttributes<any> {
    name: string;
    input: any;
    placeholder?: string;
    label?: string;
    options?: { [key: string]: any; };
}

class InternalStringArrField extends React.Component<IStringArrFilterInternal & any, any> {

    private constructor(props, context) {
        super(props, context);

        this.state = {
            values: [ ...props.input.value ],
            text: '',
        };
    }

    public componentWillReceiveProps(nextProps) {
        this.setState({
            values: [ ...nextProps.input.value ],
            text: '',
        });
    }

    private maybeAdd = (text: string) => {
      const values = [ ...this.state.values ];

      if (text && text.length > 0) {
        if (values.indexOf(text) < 0) {
          values.push(text);
        }
        this.setState({
          text: '',
          values,
        });
      }
      return values;
    }

    private maybeRemove = (text: string) => {
      const values = [ ...this.state.values ];

      if (text && text.length > 0) {
        const index: number = values.indexOf(text);
        if (index >= 0) {
          values.splice(index, 1);
        }
        this.setState({
          text: '',
          values,
        });
      }
      return values;
    }

    private handleKeyPres = (event) => {
        const { input } = this.props;
        const { text } = this.state;

        if (event.key === 'Enter') {
          if (text && text.length > 0) {
            event.preventDefault();
            const values = this.maybeAdd(text);
            input.onChange(values);
          } else {
            // on blank, submit it
            // input.onChange(values);
          }
        }
    }

    private handleCheckbox = (event) => {
        const { input } = this.props;

        const values = event.target.checked ? this.maybeAdd(event.target.value) : this.maybeRemove(event.target.value);
        input.onChange(values);
    }

    private removeByIndex = (index) => (event) => {
        const { input } = this.props;

        const newValues = this.maybeRemove(this.state.values[index]);
        input.onChange(newValues);
    }

    // only for the textbox
    private handleChange = (event) => {
        this.setState({ ...this.state, text: event.target.value });
    }

    private handleAddCurrent = (event) => {
        const { input } = this.props;
        const { text } = this.state;

        event.preventDefault();
        const values = this.maybeAdd(text);
        input.onChange(values);
    }

    public render() {
        const { placeholder, label, options } = this.props;
        const { text, values } = this.state;

        const withOptions: boolean = options !== undefined && typeof options === 'object';

        return (
            <div>
                { withOptions ?
                  <FormControl fullWidth component="fieldset">
                    { label && <FormLabel component="label">{ label }</FormLabel> }
                    <FormGroup>
                    { Object.keys(options).map((key) => (
                      <FormControlLabel key={ `${key}` } label={ options[key] }
                        control={
                          <Checkbox value={ key }
                            checked={ values.indexOf(key) >= 0 }
                            onChange={ this.handleCheckbox } />
                        } />
                    )) }
                    </FormGroup>
                  </FormControl>
                  :
                  <FormControl fullWidth className="full-width">
                    <InputLabel>{ label }</InputLabel>
                    <Input
                      className="full-width"
                      value={ text }
                      onChange={ this.handleChange }
                      placeholder={ placeholder || '' }
                      onKeyPress={ this.handleKeyPres }
                      onBlur={ this.handleAddCurrent }
                      endAdornment={
                        <InputAdornment position="end">
                          <IconButton type="button" onClick={ this.handleAddCurrent }>
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                            <PlusOne style={ { fontSize: '1.5rem' } } />
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                          </IconButton>
                        </InputAdornment>
                      }
                    />
                  </FormControl>
                }
                { (! withOptions && values && values.length > 0) &&
                  values.map((val, index) => (
                      <div style={ { margin: '.2rem 0', padding: '.2rem 1rem', backgroundColor: '#e8e5e1', color: '#202222' } } key={ val }>
                        { withOptions ? options[val] || val : val }
                        <div style={ { float: 'right' } } className="font-bold" onClick={ this.removeByIndex(index) }>X</div>
                      </div>
                  )) }
            </div>
        );
    }
}

interface IStringArrFilter extends React.ClassAttributes<any> {
    name: string;
    placeholder?: string;
    label?: string;
    options?: { [key: string]: any; };
}

class StringArrFilter extends React.Component<IStringArrFilter, any> {

    public constructor(props: any) {
        super(props);
    }

    public render() {
        const { name, label, placeholder, options } = this.props;
        return (
            <div>
                <Field
                    name={ name }
                    component={ InternalStringArrField }
                    label={ label }
                    placeholder={ placeholder }
                    options={ options }
                />
            </div>
        );
    }
}

export default StringArrFilter;