69 lines
1.6 KiB
JavaScript
69 lines
1.6 KiB
JavaScript
import { Component } from 'react';
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import React from 'react';
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import PropTypes from 'prop-types';
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import './ImageScrollbar.styl';
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class ImageScrollbar extends Component {
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constructor(props) {
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super(props);
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this.onChange = this.onChange.bind(this);
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this.onKeyDown = this.onKeyDown.bind(this);
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}
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render() {
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this.style = {
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width: `${this.props.height}`
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};
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return (
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<div className="scroll">
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<div className="scroll-holder">
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<input
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className="imageSlider"
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style={this.style}
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type="range"
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min="0"
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max={this.props.max}
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step="1"
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value={this.props.value}
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onChange={this.onChange}
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onKeyDown={this.onKeyDown}
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/>
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</div>
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</div>
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);
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}
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onChange(event) {
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const intValue = parseInt(event.target.value, 10);
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this.props.onInputCallback(intValue);
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}
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onKeyDown(event) {
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// We don't allow direct keyboard up/down input on the
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// image sliders since the natural direction is reversed (0 is at the top)
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// Store the KeyCodes in an object for readability
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const keys = {
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DOWN: 40,
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UP: 38
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};
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if (event.which === keys.DOWN) {
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OHIF.commands.run('scrollDown');
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event.preventDefault();
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} else if (event.which === keys.UP) {
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OHIF.commands.run('scrollUp');
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event.preventDefault();
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}
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}
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}
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ImageScrollbar.propTypes = {
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value: PropTypes.number.isRequired,
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onInputCallback: PropTypes.func.isRequired
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};
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export default ImageScrollbar;
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