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a tool for shared writing and social publishing forked from leaflet.pub/leaflet
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2.3 kB · 91 lines
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export function ViewportSizeLayout(props: { children: React.ReactNode }) { let viewheight = useViewportSize().height; let difference = useViewportDifference(); return ( <div style={{ height: isIOS() && difference !== 0 ? `calc(${viewheight}px + 10px)` : "calc(100% + env(safe-area-inset-top)", }} > {props.children} </div> );}
function useViewportDifference(): number { let [difference, setDifference] = useState(0);
useEffect(() => { // Use visualViewport api to track available height even on iOS virtual keyboard opening let onResize = () => { setDifference(window.innerHeight - getViewportSize().height); };
if (!visualViewport) { window.addEventListener("resize", onResize); } else { visualViewport.addEventListener("resize", onResize); }
return () => { if (!visualViewport) { window.removeEventListener("resize", onResize); } else { visualViewport.removeEventListener("resize", onResize); } }; }, []);
return difference;}
function getViewportSize() { if (typeof window === "undefined") return { width: 0, height: 0 }; return { width: visualViewport?.width || window?.innerWidth, height: visualViewport?.height || window?.innerHeight, };}
export function useViewportSize(): { width: number; height: number;} { let [size, setSize] = useState(() => getViewportSize());
useEffect(() => { // Use visualViewport api to track available height even on iOS virtual keyboard opening let onResize = () => { setSize((size) => { let newSize = getViewportSize(); if (newSize.width === size.width && newSize.height === size.height) { return size; } return newSize; }); };
if (!visualViewport) { window.addEventListener("resize", onResize); } else { visualViewport.addEventListener("resize", onResize); }
return () => { if (!visualViewport) { window.removeEventListener("resize", onResize); } else { visualViewport.removeEventListener("resize", onResize); } }; }, []);
return size;}