4dkankan-components/packages/utils/dom/event.ts

export const composeEventHandlers = <E>(theirsHandler?: (event: E) => boolean | void, oursHandler?: (event: E) => void, { checkForDefaultPrevented = true } = {}) => {
    const handleEvent = (event: E) => {
        const shouldPrevent = theirsHandler?.(event)

        if (checkForDefaultPrevented === false || !shouldPrevent) {
            return oursHandler?.(event)
        }
    }
    return handleEvent
}

type WhenMouseHandler = (e: PointerEvent) => any
export const whenMouse = (handler: WhenMouseHandler): WhenMouseHandler => {
    return (e: PointerEvent) => (e.pointerType === 'mouse' ? handler(e) : undefined)
}