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| import React, { Component } from 'react';
import PropTypes from 'prop-types';
import { omit } from 'ramda';
import { Range } from 'rc-slider';
import format from 'string-format';
import Dialog from 'material-ui/Dialog';
import FlatButton from 'material-ui/FlatButton';
import MuiThemeProvider from 'material-ui/styles/MuiThemeProvider';
const propTypes = {
/** The ID used to identify this component */
id: PropTypes.string,
/** The value used to select the slider */
value: PropTypes.arrayOf(PropTypes.oneOfType([PropTypes.number, PropTypes.string])),
/**
* Marks on the slider.
* The key determines the position,
* and the value determines what will show.
* If you want to set the style of a specific mark point,
* the value should be an object which
* contains style and label properties.
*/
marks: PropTypes.shape({
number: PropTypes.oneOfType([
/**
* The label of the mark
*/
PropTypes.string,
/**
* The style and label of the mark
*/
PropTypes.shape({
style: PropTypes.object,
label: PropTypes.string
})
])
}),
/**
* allowCross could be set as true to allow those handles to cross.
*/
allowCross: PropTypes.bool,
/** Variable is strictly ascending? */
ascending: PropTypes.bool,
/** Minimum value for the slider */
minVal: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),
/** Maximum value for the slider */
maxVal: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),
/** Human-readable name of the variable to display */
humanName: PropTypes.string,
/** Description of the variable to display in the Dialog */
description: PropTypes.string,
/** Text to display when all values are selected, e.g. 'all ages' */
allValuesText: PropTypes.string,
/** Formatter to use which takes min and max value */
rangeFormatter: PropTypes.string,
/** Or higher string formatter */
orHigherFormatter: PropTypes.string,
/** Or less string formatter */
orLowerFormatter: PropTypes.string,
/** All values formatter */
allValuesFormatter: PropTypes.string,
/** Should the range slider try to split the label strings intelligently? */
splitLabels: PropTypes.bool,
/**
* Should the range slider apply "{} to {}"-style formatting to the label if a single value
* is selected?
*/
singleValueFormatting: PropTypes.bool,
/**
* Determines when the component should update
* its value. If `mouseup`, then the slider
* will only trigger its value when the user has
* finished dragging the slider. If `drag`, then
* the slider will update its value continuously
* as it is being dragged.
* Only use `drag` if your updates are fast.
*/
updatemode: PropTypes.oneOf(['mouseup', 'drag']),
/** Class name to apply to the button */
buttonClassName: PropTypes.string,
/**
* Dash-assigned callback that should be called whenever any of the
* properties change
*/
setProps: PropTypes.func
};
const defaultProps = {
ascending: true,
updatemode: 'mouseup',
rangeFormatter: '{} to {}',
orLowerFormatter: 'Under {}',
orHigherFormatter: '{} or higher',
buttonClassName: '',
splitLabels: true,
singleValueFormatting: true
};
/**
* SDRangeSlider is an example component.
* It takes a property, `label`, and
* displays it.
* It renders an input with the property `value`
* which is editable by the user.
*/
export default class SDRangeSlider extends Component {
constructor(props) {
super(props);
this.state = {value: props.value, editorOpen: false};
}
componentWillReceiveProps(newProps) {
this.setState({value: newProps.value});
}
splitLabel(label, index) {
const { splitLabels } = this.props;
Eif (splitLabels) {
const vals = label.split(' ');
Eif (index < 0)
return vals[vals.length + index];
return vals[index];
}
return label;
}
get compressedLabel() {
const { value } = this.state;
const lowValSelected = value[0];
const highValSelected = value[1];
const {
marks,
allValuesText,
orHigherFormatter,
orLowerFormatter,
rangeFormatter,
singleValueFormatting } = this.props;
const values = Object.keys(marks);
const minValue = Math.min(...values);
const maxVal = Math.max(...values);
// Selected the entire range
Iif (minValue === lowValSelected && maxVal === highValSelected)
return allValuesText;
// We don't want to do anything special if only one value is selected
else Iif (!singleValueFormatting && lowValSelected === highValSelected)
return marks[lowValSelected].label;
// This goes from the minimum possible value up to the highest value selected
else Eif (minValue === lowValSelected)
return format(orLowerFormatter, this.splitLabel(marks[highValSelected].label, -1));
// This goes from the highest possible value down to the lowest value selected
else if (maxVal === highValSelected)
return format(orHigherFormatter, this.splitLabel(marks[lowValSelected].label, 0));
const highStr = this.splitLabel(marks[highValSelected].label, -1);
const lowStr = this.splitLabel(marks[lowValSelected].label, 0);
return format(rangeFormatter, lowStr, highStr);
}
render() {
const { fireEvent, setProps, updatemode, buttonClassName, humanName, description } = this.props;
const { value } = this.state;
const actions = [
<FlatButton
label="Done editing range"
primary={true}
onClick={() => { this.setState({editorOpen: false}); }}
/>
];
const compressedLabel = this.compressedLabel;
return (
<MuiThemeProvider>
<div className="sd-range-slider">
<div className="compressed-label">
<a
href="#edit-slider"
onClick={(event) => {
event.preventDefault();
this.setState({editorOpen: true});
}}
className="edit"
>
<span className="label-text">{compressedLabel}</span>
<span className={buttonClassName} />
<span className="edit-rarr">→</span>
</a>
</div>
<Dialog
title={typeof humanName === 'string'
? <h6>Edit range for <strong>{humanName}</strong></h6>
: <h6>Edit range</h6>}
actions={actions}
modal={false}
open={this.state.editorOpen}
onRequestClose={() => { this.setState({editorOpen: false}); }}
>
<div>
<p>{description}</p>
<p>Selected: <strong>{compressedLabel}</strong></p>
<Range
onChange={val => {
this.setState({value: val});
if (updatemode === 'drag') {
if (setProps) setProps({value: val});
if (fireEvent) fireEvent('change');
}
}}
style={{width: '82%', marginLeft: '9%', marginBottom: 20}}
onAfterChange={val => {
if (updatemode === 'mouseup') {
if (setProps) setProps({value: val});
if (fireEvent) fireEvent('change');
}
}}
value={value}
{...omit(
['value', 'fireEvent', 'setProps', 'updatemode'],
{...this.props, min: this.props.minVal, max: this.props.maxVal})}
/>
</div>
</Dialog>
</div>
</MuiThemeProvider>);
}
}
SDRangeSlider.propTypes = propTypes;
SDRangeSlider.defaultProps = defaultProps;
|