impress-2020/src/app/WardrobePage/index.js

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import React from "react";
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import { useToast } from "@chakra-ui/react";
import { loadable } from "../util";
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import ItemsAndSearchPanels from "./ItemsAndSearchPanels";
import SearchFooter from "./SearchFooter";
import SupportOnly from "./support/SupportOnly";
import useOutfitSaving from "./useOutfitSaving";
import useOutfitState, { OutfitStateContext } from "./useOutfitState";
import WardrobePageLayout from "./WardrobePageLayout";
import WardrobePreviewAndControls from "./WardrobePreviewAndControls";
import { useRouter } from "next/router";
import Head from "next/head";
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const WardrobeDevHacks = loadable(() => import("./WardrobeDevHacks"));
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/**
* WardrobePage is the most fun page on the site - it's where you create
* outfits!
*
* This page has two sections: the OutfitPreview, where we show the outfit as a
* big image; and the ItemsAndSearchPanels, which let you manage which items
* are in the outfit and find new ones.
*
* This component manages shared outfit state, and the fullscreen responsive
* page layout.
*/
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function WardrobePage() {
const toast = useToast();
const { loading, error, outfitState, dispatchToOutfit } = useOutfitState();
// We manage outfit saving up here, rather than at the point of the UI where
// "Saving" indicators appear. That way, auto-saving still happens even when
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// the indicator isn't on the page, e.g. when searching. We also mount a
// <Prompt /> in this component to prevent navigating away before saving.
const outfitSaving = useOutfitSaving(outfitState, dispatchToOutfit);
// TODO: I haven't found a great place for this error UI yet, and this case
// isn't very common, so this lil toast notification seems good enough!
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React.useEffect(() => {
if (error) {
console.error(error);
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toast({
title: "We couldn't load this outfit 😖",
description: "Please reload the page to try again. Sorry!",
status: "error",
isClosable: true,
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duration: 999999999,
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});
}
}, [error, toast]);
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// For new outfits, we only block navigation while saving. For existing
// outfits, we block navigation while there are any unsaved changes.
const shouldBlockNavigation =
outfitSaving.canSaveOutfit &&
((outfitSaving.isNewOutfit && outfitSaving.isSaving) ||
(!outfitSaving.isNewOutfit && !outfitSaving.latestVersionIsSaved));
// In addition to a <Prompt /> for client-side nav, we need to block full nav!
React.useEffect(() => {
if (shouldBlockNavigation) {
const onBeforeUnload = (e) => {
// https://developer.mozilla.org/en-US/docs/Web/API/WindowEventHandlers/onbeforeunload#example
e.preventDefault();
e.returnValue = "";
};
window.addEventListener("beforeunload", onBeforeUnload);
return () => window.removeEventListener("beforeunload", onBeforeUnload);
}
}, [shouldBlockNavigation]);
// NOTE: Most components pass around outfitState directly, to make the data
// relationships more explicit... but there are some deep components
// that need it, where it's more useful and more performant to access
// via context.
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return (
<>
<Head>
<title>
{outfitState.name || "Untitled outfit"} | Dress to Impress
</title>
{outfitState.id && <SavedOutfitMetaTags outfitState={outfitState} />}
</Head>
<OutfitStateContext.Provider value={outfitState}>
<SupportOnly>
<WardrobeDevHacks />
</SupportOnly>
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{/*
* TODO: This might unnecessarily block navigations that we don't
* necessarily need to, e.g., navigating back to Your Outfits while the
* save request is in flight. We could instead submit the save mutation
* immediately on client-side nav, and have each outfit save mutation
* install a `beforeunload` handler that ensures that you don't close
* the page altogether while it's in flight. But let's start simple and
* see how annoying it actually is in practice lol
*/}
<Prompt
when={shouldBlockNavigation}
message="Are you sure you want to leave? Your changes might not be saved."
/>
<WardrobePageLayout
previewAndControls={
<WardrobePreviewAndControls
isLoading={loading}
outfitState={outfitState}
dispatchToOutfit={dispatchToOutfit}
/>
}
itemsAndMaybeSearchPanel={
<ItemsAndSearchPanels
loading={loading}
outfitState={outfitState}
outfitSaving={outfitSaving}
dispatchToOutfit={dispatchToOutfit}
/>
}
searchFooter={<SearchFooter />}
/>
</OutfitStateContext.Provider>
</>
);
}
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/**
* SavedOutfitMetaTags renders the meta tags that we use to render pretty
* share cards for social media for saved outfits!
*/
function SavedOutfitMetaTags({ outfitState }) {
const updatedAtTimestamp = Math.floor(
new Date(outfitState.updatedAt).getTime() / 1000
);
const imageUrl =
`https://impress-outfit-images.openneo.net/outfits` +
`/${encodeURIComponent(outfitState.id)}` +
`/v/${encodeURIComponent(updatedAtTimestamp)}` +
`/600.png`;
return (
<>
<meta
property="og:title"
content={outfitState.name || "Untitled outfit"}
/>
<meta property="og:type" content="website" />
<meta property="og:image" content={imageUrl} />
<meta property="og:url" content={outfitState.url} />
<meta property="og:site_name" content="Dress to Impress" />
<meta
property="og:description"
content="A custom Neopets outfit, designed on Dress to Impress!"
/>
</>
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);
}
/**
* Prompt blocks client-side navigation via Next.js when the `when` prop is
* true. This is our attempt at a drop-in replacement for the Prompt component
* offered by react-router!
*
* Adapted from https://github.com/vercel/next.js/issues/2694#issuecomment-778225625
*/
function Prompt({ when, message }) {
const router = useRouter();
React.useEffect(() => {
const handleWindowClose = (e) => {
if (!when) return;
e.preventDefault();
return (e.returnValue = message);
};
const handleBrowseAway = () => {
if (!when) return;
if (window.confirm(message)) return;
router.events.emit("routeChangeError");
throw "routeChange aborted by <Prompt>.";
};
window.addEventListener("beforeunload", handleWindowClose);
router.events.on("routeChangeStart", handleBrowseAway);
return () => {
window.removeEventListener("beforeunload", handleWindowClose);
router.events.off("routeChangeStart", handleBrowseAway);
};
}, [when, message, router]);
return null;
}
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export default WardrobePage;