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Container.tsx
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Container.tsx
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import React from 'react';
import Config from '../contexts/Config';
import Corner from './Corner';
import Direction from '../utils/Direction';
import { FromCorner, Emitter, Component } from '../types';
import Percentage from '../utils/Percentage';
interface PropTypes {
emitter: Emitter;
component: Component;
id: number;
height: number;
width: number;
top: number;
left: number;
previous?: number;
next?: number;
state?: unknown;
setState: (id: number, state: unknown) => void;
}
interface State {
id: number;
setState: (state: unknown) => void;
state: unknown;
stats?: DOMRect;
}
const Context = React.createContext<State>({
id: -1,
setState: () => undefined,
state: {},
});
const Container: React.FC<PropTypes> = (props) => {
const [stats, setStats] = React.useState<DOMRect>();
const elementRef = React.useRef<HTMLDivElement>(null);
const { container } = Config.useClassNames();
const {
id,
component: Comp,
width,
height,
top,
left,
emitter,
state,
setState,
} = props;
const style: React.CSSProperties = {
position: 'absolute',
overflow: 'hidden',
width: Percentage.toString(width),
height: Percentage.toString(height),
top: Percentage.toString(top),
left: Percentage.toString(left),
};
React.useEffect(() => {
const saveStats = () => {
// wait to have the final size
setTimeout(() => {
if (!elementRef.current) {
return;
}
setStats(elementRef.current.getBoundingClientRect());
}, 100);
};
saveStats();
window.addEventListener('resize', saveStats);
return () => window.removeEventListener('resize', saveStats);
}, [width, height, top, left]);
const onStartDrag = (fromCorner: FromCorner) => {
emitter.emit('cornerDrag', {
containerId: id,
from: fromCorner,
});
};
const value = {
id,
setState: React.useCallback(
(state: unknown) => {
setState(id, state);
},
[setState],
),
state,
stats,
};
return (
<div ref={elementRef} className={container} style={style}>
<Context.Provider value={value}>
<Comp />
</Context.Provider>
<Corner
onStartDrag={onStartDrag}
vertical={Direction.TOP}
horizontal={Direction.LEFT}
/>
<Corner
onStartDrag={onStartDrag}
vertical={Direction.TOP}
horizontal={Direction.RIGHT}
/>
<Corner
onStartDrag={onStartDrag}
vertical={Direction.BOTTOM}
horizontal={Direction.RIGHT}
/>
<Corner
onStartDrag={onStartDrag}
vertical={Direction.BOTTOM}
horizontal={Direction.LEFT}
/>
</div>
);
};
const useContainer = () => React.useContext(Context);
export { useContainer };
export default Container;