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import { action, observable } from 'mobx';
import * as React from 'react';
interface DividerProps {
index: number;
xMargin: number;
setColumnStartXCoords: (movementX: number, colIndex: number) => void;
}
export class CollectionNoteTakingViewDivider extends React.Component<DividerProps> {
@observable private isHoverActive = false;
@observable private isResizingActive = false;
@action
private registerResizing = (e: React.PointerEvent<HTMLDivElement>) => {
e.stopPropagation();
e.preventDefault();
window.removeEventListener('pointermove', this.onPointerMove);
window.removeEventListener('pointerup', this.onPointerUp);
window.addEventListener('pointermove', this.onPointerMove);
window.addEventListener('pointerup', this.onPointerUp);
this.isResizingActive = true;
};
@action
private onPointerUp = () => {
this.isResizingActive = false;
this.isHoverActive = false;
window.removeEventListener('pointermove', this.onPointerMove);
window.removeEventListener('pointerup', this.onPointerUp);
};
@action
onPointerMove = ({ movementX }: PointerEvent) => {
this.props.setColumnStartXCoords(movementX, this.props.index);
};
render() {
return (
<div
className="columnResizer"
style={{
display: 'flex',
alignItems: 'center',
cursor: 'col-resize',
}}
onPointerEnter={action(() => (this.isHoverActive = true))}
onPointerLeave={action(() => !this.isResizingActive && (this.isHoverActive = false))}>
<div
className="columnResizer-handler"
onPointerDown={e => this.registerResizing(e)}
style={{
height: '95%',
width: 12,
borderRight: '4px solid #282828',
borderLeft: '4px solid #282828',
margin: '0px 10px',
}}
/>
</div>
);
}
}
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