impress-2020/src/app/components/OutfitPreview.js
Matchu ad43f58a07 fix Download button to use better caching
So I broke the Download button when we switched to impress-2020.openneo.net, and I forgot to update the Amazon S3 config.

But in addition to that, I'm making some code changes here, to make downloads faster: we now use exactly the same URL and crossOrigin configuration between the <img> tag on the page, and the image that the Download button requests, which ensures that it can use the cached copy instead of loading new stuff. (There were two main cases: 1. it always loaded the PNGs instead of the SVG, which doesn't matter for quality if we're rendering a 600x600 bitmap anyway, but is good caching, and 2. send `crossOrigin` on the <img> tag, which isn't necessary there, but is necessary for Download, and having them match means we can use the cached copy.)
2020-10-10 01:21:47 -07:00

370 lines
11 KiB
JavaScript

import React from "react";
import { Box, DarkMode, Flex, Text } from "@chakra-ui/core";
import { WarningIcon } from "@chakra-ui/icons";
import { css, cx } from "emotion";
import { CSSTransition, TransitionGroup } from "react-transition-group";
import OutfitMovieLayer, {
buildMovieClip,
hasAnimations,
loadMovieLibrary,
useEaselDependenciesLoader,
} from "./OutfitMovieLayer";
import HangerSpinner from "./HangerSpinner";
import { loadImage, safeImageUrl, useLocalStorage } from "../util";
import useOutfitAppearance from "./useOutfitAppearance";
/**
* OutfitPreview is for rendering a full outfit! It accepts outfit data,
* fetches the appearance data for it, and preloads and renders the layers
* together.
*
* If the species/color/pose fields are null and a `placeholder` node is
* provided instead, we'll render the placeholder. And then, once those props
* become non-null, we'll keep showing the placeholder below the loading
* overlay until loading completes. (We use this on the homepage to show the
* beach splash until outfit data arrives!)
*
* TODO: There's some duplicate work happening in useOutfitAppearance and
* useOutfitState both getting appearance data on first load...
*/
function OutfitPreview({
speciesId,
colorId,
pose,
wornItemIds,
appearanceId = null,
isLoading = false,
placeholder,
loadingDelayMs,
spinnerVariant,
onChangeHasAnimations = null,
}) {
const { loading, error, visibleLayers } = useOutfitAppearance({
speciesId,
colorId,
pose,
appearanceId,
wornItemIds,
});
const {
loading: loading2,
error: error2,
loadedLayers,
layersHaveAnimations,
} = usePreloadLayers(visibleLayers);
const [isPaused] = useLocalStorage("DTIOutfitIsPaused", true);
React.useEffect(() => {
if (onChangeHasAnimations) {
onChangeHasAnimations(layersHaveAnimations);
}
}, [layersHaveAnimations, onChangeHasAnimations]);
if (error || error2) {
return (
<FullScreenCenter>
<Text color="green.50" d="flex" alignItems="center">
<WarningIcon />
<Box width={2} />
Could not load preview. Try again?
</Text>
</FullScreenCenter>
);
}
return (
<OutfitLayers
loading={isLoading || loading || loading2}
visibleLayers={loadedLayers}
placeholder={placeholder}
loadingDelayMs={loadingDelayMs}
spinnerVariant={spinnerVariant}
onChangeHasAnimations={onChangeHasAnimations}
doTransitions
isPaused={isPaused}
/>
);
}
/**
* OutfitLayers is the raw UI component for rendering outfit layers. It's
* used both in the main outfit preview, and in other minor UIs!
*/
export function OutfitLayers({
loading,
visibleLayers,
placeholder,
loadingDelayMs = 500,
spinnerVariant = "overlay",
doTransitions = false,
onChangeHasAnimations = null,
isPaused = true,
}) {
const containerRef = React.useRef(null);
const [canvasSize, setCanvasSize] = React.useState(0);
const [loadingDelayHasPassed, setLoadingDelayHasPassed] = React.useState(
false
);
const { loading: loadingEasel } = useEaselDependenciesLoader();
const loadingAnything = loading || loadingEasel;
// When we start in a loading state, or re-enter a loading state, start the
// loading delay timer.
React.useEffect(() => {
if (loadingAnything) {
setLoadingDelayHasPassed(false);
const t = setTimeout(
() => setLoadingDelayHasPassed(true),
loadingDelayMs
);
return () => clearTimeout(t);
}
}, [loadingDelayMs, loadingAnything]);
React.useLayoutEffect(() => {
function computeAndSaveCanvasSize() {
setCanvasSize(
Math.min(
containerRef.current.offsetWidth,
containerRef.current.offsetHeight
)
);
}
computeAndSaveCanvasSize();
window.addEventListener("resize", computeAndSaveCanvasSize);
return () => window.removeEventListener("resize", computeAndSaveCanvasSize);
}, [setCanvasSize]);
return (
<Box
pos="relative"
height="100%"
width="100%"
// Create a stacking context, so the z-indexed layers don't escape!
zIndex="0"
ref={containerRef}
>
{placeholder && (
<FullScreenCenter>
<Box
// We show the placeholder until there are visible layers, at which
// point we fade it out.
opacity={visibleLayers.length === 0 ? 1 : 0}
transition="opacity 0.2s"
>
{placeholder}
</Box>
</FullScreenCenter>
)}
<TransitionGroup enter={false} exit={doTransitions}>
{visibleLayers.map((layer) => (
<CSSTransition
// We manage the fade-in and fade-out separately! The fade-out
// happens here, when the layer exits the DOM.
key={layer.id}
classNames={css`
&-exit {
opacity: 1;
}
&-exit-active {
opacity: 0;
transition: opacity 0.2s;
}
`}
timeout={200}
>
<FullScreenCenter zIndex={layer.zone.depth}>
{layer.canvasMovieLibraryUrl ? (
<OutfitMovieLayer
libraryUrl={layer.canvasMovieLibraryUrl}
width={canvasSize}
height={canvasSize}
isPaused={isPaused}
/>
) : (
<img
src={getBestImageUrlForLayer(layer).src}
// The crossOrigin prop isn't strictly necessary for loading
// here (<img> tags are always allowed through CORS), but
// this means we make the same request that the Download
// button makes, so it can use the cached version of this
// image instead of requesting it again with crossOrigin!
crossOrigin={getBestImageUrlForLayer(layer).crossOrigin}
alt=""
// We manage the fade-in and fade-out separately! The fade-in
// happens here, when the <Image> finishes preloading and
// applies the src to the underlying <img>.
className={cx(
css`
object-fit: contain;
max-width: 100%;
max-height: 100%;
&.do-animations {
animation: fade-in 0.2s;
}
@keyframes fade-in {
from {
opacity: 0;
}
to {
opacity: 1;
}
}
`,
doTransitions && "do-animations"
)}
/>
)}
</FullScreenCenter>
</CSSTransition>
))}
</TransitionGroup>
<FullScreenCenter
zIndex="9000"
// This is similar to our Delay util component, but Delay disappears
// immediately on load, whereas we want this to fade out smoothly. We
// also use a timeout to delay the fade-in by 0.5s, but don't delay the
// fade-out at all. (The timeout was an awkward choice, it was hard to
// find a good CSS way to specify this delay well!)
opacity={loadingAnything && loadingDelayHasPassed ? 1 : 0}
transition="opacity 0.2s"
>
{spinnerVariant === "overlay" && (
<>
<Box
position="absolute"
top="0"
left="0"
right="0"
bottom="0"
backgroundColor="gray.900"
opacity="0.7"
/>
{/* Against the dark overlay, use the Dark Mode spinner. */}
<DarkMode>
<HangerSpinner />
</DarkMode>
</>
)}
{spinnerVariant === "corner" && (
<HangerSpinner size="sm" position="absolute" bottom="2" right="2" />
)}
</FullScreenCenter>
</Box>
);
}
export function FullScreenCenter({ children, ...otherProps }) {
return (
<Flex
pos="absolute"
top="0"
right="0"
bottom="0"
left="0"
alignItems="center"
justifyContent="center"
{...otherProps}
>
{children}
</Flex>
);
}
export function getBestImageUrlForLayer(layer) {
if (layer.svgUrl) {
return { src: safeImageUrl(layer.svgUrl) };
} else {
return { src: layer.imageUrl, crossOrigin: "anonymous" };
}
}
/**
* usePreloadLayers preloads the images for the given layers, and yields them
* when done. This enables us to keep the old outfit preview on screen until
* all the new layers are ready, then show them all at once!
*/
export function usePreloadLayers(layers) {
const [error, setError] = React.useState(null);
const [loadedLayers, setLoadedLayers] = React.useState([]);
const [layersHaveAnimations, setLayersHaveAnimations] = React.useState(false);
// NOTE: This condition would need to change if we started loading one at a
// time, or if the error case would need to show a partial state!
const loading = loadedLayers !== layers;
React.useEffect(() => {
// HACK: Don't clear the preview when we have zero layers, because it
// usually means the parent is still loading data. I feel like this isn't
// the right abstraction, though...
if (loadedLayers.length > 0 && layers.length === 0) {
return;
}
// If the layers already match, we can ignore extra effect triggers.
if (!loading) {
return;
}
let canceled = false;
setError(null);
const loadAssets = async () => {
const assetPromises = layers.map((layer) => {
if (layer.canvasMovieLibraryUrl) {
return loadMovieLibrary(layer.canvasMovieLibraryUrl).then(
(library) => ({
type: "movie",
library,
libraryUrl: layer.canvasMovieLibraryUrl,
})
);
} else {
return loadImage(getBestImageUrlForLayer(layer)).then((image) => ({
type: "image",
image,
}));
}
});
let assets;
try {
assets = await Promise.all(assetPromises);
} catch (e) {
if (canceled) return;
console.error("Error preloading outfit layers", e);
assetPromises.forEach((p) => p.cancel());
setError(e);
return;
}
if (canceled) return;
const newLayersHaveAnimations = assets.some(
(a) =>
a.type === "movie" &&
hasAnimations(buildMovieClip(a.library, a.libraryUrl))
);
setLoadedLayers(layers);
setLayersHaveAnimations(newLayersHaveAnimations);
};
loadAssets();
return () => {
canceled = true;
};
}, [layers, loadedLayers.length, loading]);
return { loading, error, loadedLayers, layersHaveAnimations };
}
export default OutfitPreview;