File size: 2,556 Bytes
5913525 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | import React from 'react';
import PropTypes from 'prop-types';
import styles from './scrollable-canvas.css';
const ScrollableCanvasComponent = props => (
<div
className={props.style}
>
{props.children}
<div
className={styles.horizontalScrollbarWrapper}
style={{pointerEvents: 'none'}}
>
<div
className={styles.horizontalScrollbarHitbox}
style={{
width: `${props.horizontalScrollLengthPercent}%`,
left: `${props.horizontalScrollStartPercent}%`,
pointerEvents: 'auto',
display: `${props.hideScrollbars ||
Math.abs(props.horizontalScrollLengthPercent - 100) < 1e-8 ? 'none' : 'block'}`
}}
onMouseDown={props.onHorizontalScrollbarMouseDown}
onTouchStart={props.onHorizontalScrollbarMouseDown}
>
<div
className={styles.horizontalScrollbar}
/>
</div>
</div>
<div
className={styles.verticalScrollbarWrapper}
style={{pointerEvents: 'none'}}
>
<div
className={styles.verticalScrollbarHitbox}
style={{
height: `${props.verticalScrollLengthPercent}%`,
top: `${props.verticalScrollStartPercent}%`,
pointerEvents: 'auto',
display: `${props.hideScrollbars ||
Math.abs(props.verticalScrollLengthPercent - 100) < 1e-8 ? 'none' : 'block'}`
}}
onMouseDown={props.onVerticalScrollbarMouseDown}
onTouchStart={props.onVerticalScrollbarMouseDown}
>
<div
className={styles.verticalScrollbar}
/>
</div>
</div>
</div>
);
ScrollableCanvasComponent.propTypes = {
children: PropTypes.node.isRequired,
hideScrollbars: PropTypes.bool,
horizontalScrollLengthPercent: PropTypes.number,
horizontalScrollStartPercent: PropTypes.number,
onHorizontalScrollbarMouseDown: PropTypes.func.isRequired,
onVerticalScrollbarMouseDown: PropTypes.func.isRequired,
style: PropTypes.string,
verticalScrollLengthPercent: PropTypes.number,
verticalScrollStartPercent: PropTypes.number
};
export default ScrollableCanvasComponent;
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