| 1 | "use client"; |
| 2 | |
| 3 | import { useEffect, useState } from "react"; |
| 4 | |
| 5 | type PresentModeViewportState = { |
| 6 | isPhoneViewport: boolean; |
| 7 | isPortraitViewport: boolean; |
| 8 | }; |
| 9 | |
| 10 | function getViewportDimensions() { |
| 11 | if (typeof window === "undefined") { |
| 12 | return { width: 0, height: 0 }; |
| 13 | } |
| 14 | |
| 15 | return { |
| 16 | width: Math.max( |
| 17 | window.innerWidth, |
| 18 | Math.round(window.visualViewport?.width ?? 0), |
| 19 | ), |
| 20 | height: Math.max( |
| 21 | window.innerHeight, |
| 22 | Math.round(window.visualViewport?.height ?? 0), |
| 23 | ), |
| 24 | }; |
| 25 | } |
| 26 | |
| 27 | function isPhoneLikeViewport(width: number, height: number): boolean { |
| 28 | if (typeof window === "undefined" || typeof navigator === "undefined") { |
| 29 | return false; |
| 30 | } |
| 31 | |
| 32 | const smallerSide = Math.min(width, height); |
| 33 | const largerSide = Math.max(width, height); |
| 34 | const phoneSizedViewport = smallerSide <= 500 && largerSide <= 1000; |
| 35 | const coarsePointer = window.matchMedia("(pointer: coarse)").matches; |
| 36 | const noHover = window.matchMedia("(hover: none)").matches; |
| 37 | const hasTouchPoints = navigator.maxTouchPoints > 0; |
| 38 | |
| 39 | return phoneSizedViewport || coarsePointer || (noHover && hasTouchPoints); |
| 40 | } |
| 41 | |
| 42 | function getPresentModeViewportState(): PresentModeViewportState { |
| 43 | const { width, height } = getViewportDimensions(); |
| 44 | |
| 45 | return { |
| 46 | isPhoneViewport: isPhoneLikeViewport(width, height), |
| 47 | isPortraitViewport: height > width, |
| 48 | }; |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * Returns viewport dimensions for present mode scaling. |
| 53 | * Always returns the actual viewport dimensions (no swapping). |
| 54 | */ |
| 55 | export function getPresentModeViewportDimensions() { |
| 56 | const { width, height } = getViewportDimensions(); |
| 57 | |
| 58 | return { width, height }; |
| 59 | } |
| 60 | |
| 61 | export function usePresentModeOrientation(isPresenting: boolean) { |
| 62 | const [viewportState, setViewportState] = useState<PresentModeViewportState>( |
| 63 | () => getPresentModeViewportState(), |
| 64 | ); |
| 65 | |
| 66 | useEffect(() => { |
| 67 | if (!isPresenting) { |
| 68 | setViewportState(getPresentModeViewportState()); |
| 69 | return; |
| 70 | } |
| 71 | |
| 72 | const updateViewportState = () => { |
| 73 | setViewportState(getPresentModeViewportState()); |
| 74 | }; |
| 75 | |
| 76 | updateViewportState(); |
| 77 | window.addEventListener("resize", updateViewportState, { passive: true }); |
| 78 | window.addEventListener("orientationchange", updateViewportState); |
| 79 | window.visualViewport?.addEventListener("resize", updateViewportState); |
| 80 | |
| 81 | return () => { |
| 82 | window.removeEventListener("resize", updateViewportState); |
| 83 | window.removeEventListener("orientationchange", updateViewportState); |
| 84 | window.visualViewport?.removeEventListener("resize", updateViewportState); |
| 85 | }; |
| 86 | }, [isPresenting]); |
| 87 | |
| 88 | return viewportState; |
| 89 | } |
| 90 |