Created
August 21, 2024 15:19
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Simple Controller Hook
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import { useEffect, useMemo } from "react" // or "preact/hooks" | |
type ConstructorParams<T extends new (...args: any) => any> = T extends new ( | |
...args: infer P | |
) => any | |
? P | |
: never | |
/** | |
* A simple view controller react hook. This hook will create a new | |
* instance of the controller when the component is mounted and | |
* dispose the controller when the component is unmounted. The | |
* controller will be created with the given params, and re-created | |
* when the params change. If the controller has a `dispose` method, | |
* it will be called when the controller is disposed. | |
*/ | |
export function useController<T extends new (...args: any) => any>( | |
controllerClass: T, | |
...params: ConstructorParams<T> | |
): InstanceType<T> { | |
// Create controller instance | |
const controller = useMemo(() => { | |
return new controllerClass(...(params as any)) | |
}, params) | |
// Dispose the controller when the controller changes | |
useEffect(() => { | |
return () => { | |
disposeController(controller) | |
} | |
}, [controller]) | |
return controller | |
} | |
function disposeController(controller: any) { | |
if (controller && controller.dispose) { | |
controller.dispose() | |
} | |
} |
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