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import { createContext, useContext, useState, useEffect, type ReactNode } from 'react'
/**
* Viewport dimensions
*/
export interface ViewportDimensions {
width: number
height: number
}
/**
* Viewport context value
*/
interface ViewportContextValue {
width: number
height: number
}
const ViewportContext = createContext<ViewportContextValue | null>(null)
/**
* Hook to get viewport dimensions
* Returns mock dimensions in preview mode, actual window dimensions otherwise
*/
export function useViewport(): ViewportDimensions {
const context = useContext(ViewportContext)
// If context is provided (preview mode or custom viewport), use it
if (context) {
return context
}
// Otherwise, use actual window dimensions (hook will update on resize)
const [dimensions, setDimensions] = useState<ViewportDimensions>({
width: typeof window !== 'undefined' ? window.innerWidth : 1440,
height: typeof window !== 'undefined' ? window.innerHeight : 900,
})
useEffect(() => {
const handleResize = () => {
setDimensions({
width: window.innerWidth,
height: window.innerHeight,
})
}
window.addEventListener('resize', handleResize)
handleResize() // Set initial value
return () => window.removeEventListener('resize', handleResize)
}, [])
return dimensions
}
/**
* Provider that supplies custom viewport dimensions
* Used in preview mode to provide mock 1440×900 viewport
*/
export function ViewportProvider({
children,
width,
height,
}: {
children: ReactNode
width: number
height: number
}) {
return <ViewportContext.Provider value={{ width, height }}>{children}</ViewportContext.Provider>
}
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