From 8567f9d4b85f1cb508e4bf3203b3d38048517518 Mon Sep 17 00:00:00 2001
From: Matchu <matchu1993@gmail.com>
Date: Thu, 14 Jan 2021 04:58:15 -0800
Subject: [PATCH] Try a grid-based view for item lists

I took out virtualization for now too, I wanna see how this non-Chakra UI version, with fewer nodes and no tooltips etc, performs on large lists in production.
---
 package.json                   |   1 -
 src/app/UserItemsPage.js       |  82 ++-------------------
 src/app/components/ItemCard.js | 130 +++++++++++++++++++++++++--------
 yarn.lock                      |  30 --------
 4 files changed, 106 insertions(+), 137 deletions(-)

diff --git a/package.json b/package.json
index 6871719..0f06378 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,6 @@
     "react-router-dom": "^5.1.2",
     "react-scripts": "^4.0.1",
     "react-transition-group": "^4.3.0",
-    "react-virtualized": "^9.22.2",
     "simple-markdown": "^0.7.2",
     "xmlrpc": "^1.3.2"
   },
diff --git a/src/app/UserItemsPage.js b/src/app/UserItemsPage.js
index c1b4fed..9147a26 100644
--- a/src/app/UserItemsPage.js
+++ b/src/app/UserItemsPage.js
@@ -18,7 +18,6 @@ import {
   Wrap,
   WrapItem,
   VStack,
-  useBreakpointValue,
   useToast,
 } from "@chakra-ui/react";
 import {
@@ -32,19 +31,12 @@ import {
 import gql from "graphql-tag";
 import { useHistory, useParams } from "react-router-dom";
 import { useQuery, useLazyQuery, useMutation } from "@apollo/client";
-import { AutoSizer, Grid, WindowScroller } from "react-virtualized";
 import SimpleMarkdown from "simple-markdown";
 import DOMPurify from "dompurify";
 
 import HangerSpinner from "./components/HangerSpinner";
 import { Heading1, Heading2, Heading3 } from "./util";
-import ItemCard, {
-  ItemBadgeList,
-  ItemKindBadge,
-  YouOwnThisBadge,
-  YouWantThisBadge,
-  getZoneBadges,
-} from "./components/ItemCard";
+import ItemCard from "./components/ItemCard";
 import SupportOnly from "./WardrobePage/support/SupportOnly";
 import useSupport from "./WardrobePage/support/useSupport";
 import useCurrentUser from "./components/useCurrentUser";
@@ -467,24 +459,13 @@ function ClosetList({ closetList, isCurrentUser, showHeading }) {
         </Box>
       )}
       {sortedItems.length > 0 ? (
-        <VirtualizedItemCardList>
+        <Wrap spacing="4" justify="center">
           {sortedItems.map((item) => (
-            <ItemCard
-              key={item.id}
-              item={item}
-              badges={
-                <ItemBadgeList>
-                  <ItemKindBadge isNc={item.isNc} isPb={item.isPb} />
-                  {hasYouOwnThisBadge(item) && <YouOwnThisBadge />}
-                  {hasYouWantThisBadge(item) && <YouWantThisBadge />}
-                  {getZoneBadges(item.allOccupiedZones, {
-                    variant: "occupies",
-                  })}
-                </ItemBadgeList>
-              }
-            />
+            <WrapItem key={item.id}>
+              <ItemCard item={item} variant="grid" />
+            </WrapItem>
           ))}
-        </VirtualizedItemCardList>
+        </Wrap>
       ) : (
         <Box fontStyle="italic">This list is empty!</Box>
       )}
@@ -492,57 +473,6 @@ function ClosetList({ closetList, isCurrentUser, showHeading }) {
   );
 }
 
-function VirtualizedItemCardList({ children }) {
-  const columnCount = useBreakpointValue({ base: 1, md: 2, lg: 3 });
-  const rowCount = Math.ceil(children.length / columnCount);
-
-  return (
-    <AutoSizer disableHeight>
-      {({ width }) => (
-        <WindowScroller>
-          {({
-            height,
-            isScrolling,
-            onChildScroll,
-            scrollTop,
-            registerChild,
-          }) => (
-            <Box
-              // HACK: A mysterious invocation to force internal re-measuring!
-              //       Without this, most lists are very broken until the first
-              //       window resize event.
-              //       https://github.com/bvaughn/react-virtualized/issues/1324
-              ref={(el) => registerChild(el)}
-            >
-              <Grid
-                cellRenderer={({ key, rowIndex, columnIndex, style }) => (
-                  <Box
-                    key={key}
-                    style={style}
-                    paddingLeft={columnIndex > 0 ? "6" : "0"}
-                  >
-                    {children[rowIndex * columnCount + columnIndex]}
-                  </Box>
-                )}
-                columnCount={columnCount}
-                columnWidth={width / columnCount}
-                rowCount={rowCount}
-                rowHeight={100}
-                width={width}
-                height={height}
-                autoHeight
-                isScrolling={isScrolling}
-                onScroll={onChildScroll}
-                scrollTop={scrollTop}
-              />
-            </Box>
-          )}
-        </WindowScroller>
-      )}
-    </AutoSizer>
-  );
-}
-
 const unsafeMarkdownRules = {
   autolink: SimpleMarkdown.defaultRules.autolink,
   br: SimpleMarkdown.defaultRules.br,
diff --git a/src/app/components/ItemCard.js b/src/app/components/ItemCard.js
index 29da926..1915425 100644
--- a/src/app/components/ItemCard.js
+++ b/src/app/components/ItemCard.js
@@ -16,31 +16,99 @@ import { Link } from "react-router-dom";
 
 import { safeImageUrl, useCommonStyles } from "../util";
 
-function ItemCard({ item, badges, ...props }) {
+function ItemCard({ item, badges, variant = "list", ...props }) {
   const { brightBackground } = useCommonStyles();
+  const theme = useTheme();
 
-  return (
-    <Box
-      as={Link}
-      to={`/items/${item.id}`}
-      display="block"
-      p="2"
-      boxShadow="lg"
-      borderRadius="lg"
-      background={brightBackground}
-      transition="all 0.2s"
-      className="item-card"
-      width="100%"
-      minWidth="0"
-      {...props}
-    >
-      <ItemCardContent
-        item={item}
-        badges={badges}
-        focusSelector=".item-card:hover &, .item-card:focus &"
-      />
-    </Box>
-  );
+  switch (variant) {
+    case "grid":
+      return (
+        // ItemCard renders in large lists of 1k+ items, so we get a big perf
+        // win by using Emotion directly instead of Chakra's styled-system Box.
+        <ClassNames>
+          {({ css }) => (
+            <Link
+              as={Link}
+              to={`/items/${item.id}`}
+              className={css`
+                transition: all 0.2s;
+                &:hover,
+                &:focus {
+                  transform: scale(1.05);
+                }
+                &:focus {
+                  box-shadow: ${theme.shadows.outline};
+                  outline: none;
+                }
+              `}
+            >
+              <div
+                className={css`
+                  display: flex;
+                  flex-direction: column;
+                  align-items: center;
+                  text-align: center;
+                  box-shadow: ${theme.shadows.md};
+                  border-radius: ${theme.radii.md};
+                  padding: ${theme.space["3"]};
+                  width: calc(80px + 2em);
+                  background: ${brightBackground};
+                `}
+              >
+                <img
+                  src={safeImageUrl(item.thumbnailUrl)}
+                  alt={`Thumbnail art for ${item.name}`}
+                  width={80}
+                  height={80}
+                />
+                <div
+                  className={css`
+                    /* Set min height to match a 2-line item name, so the cards
+                     * in a row aren't toooo differently sized... */
+                    margin-top: ${theme.space["1"]};
+                    font-size: ${theme.fontSizes.sm};
+                    min-height: 2.5em;
+                    -webkit-line-clamp: 3;
+                    -webkit-box-orient: vertical;
+                    overflow: hidden;
+                    text-overflow: ellipsis;
+                  `}
+                  // HACK: Emotion turns this into -webkit-display: -webkit-box?
+                  style={{ display: "-webkit-box" }}
+                >
+                  {item.name}
+                </div>
+              </div>
+            </Link>
+          )}
+        </ClassNames>
+      );
+    case "list":
+      return (
+        <Box
+          as={Link}
+          to={`/items/${item.id}`}
+          display="block"
+          p="2"
+          boxShadow="lg"
+          borderRadius="lg"
+          background={brightBackground}
+          transition="all 0.2s"
+          className="item-card"
+          width="100%"
+          minWidth="0"
+          {...props}
+        >
+          <ItemCardContent
+            item={item}
+            badges={badges}
+            focusSelector=".item-card:hover &, .item-card:focus &"
+          />
+        </Box>
+      );
+    default:
+      throw new Error(`Unexpected ItemCard variant: ${variant}`);
+  }
 }
 
 export function ItemCardContent({
@@ -53,13 +121,15 @@ export function ItemCardContent({
 }) {
   return (
     <Box display="flex">
-      <Box flex="0 0 auto" marginRight="3">
-        <ItemThumbnail
-          item={item}
-          isActive={isWorn}
-          isDisabled={isDisabled}
-          focusSelector={focusSelector}
-        />
+      <Box>
+        <Box flex="0 0 auto" marginRight="3">
+          <ItemThumbnail
+            item={item}
+            isActive={isWorn}
+            isDisabled={isDisabled}
+            focusSelector={focusSelector}
+          />
+        </Box>
       </Box>
       <Box flex="1 1 0" minWidth="0" marginTop="1px">
         <ItemName
diff --git a/yarn.lock b/yarn.lock
index 080519d..5955232 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6210,11 +6210,6 @@ clone-deep@^4.0.1:
     kind-of "^6.0.2"
     shallow-clone "^3.0.0"
 
-clsx@^1.0.4:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/clsx/-/clsx-1.1.1.tgz#98b3134f9abbdf23b2663491ace13c5c03a73188"
-  integrity sha512-6/bPho624p3S2pMyvP5kKBPXnI3ufHLObBFCfgx+LkeR5lg2XYy2hqZqUf45ypD8COn2bhgGJSUE+l5dhNBieA==
-
 co@^4.6.0:
   version "4.6.0"
   resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
@@ -7222,14 +7217,6 @@ dom-helpers@^5.0.1:
     "@babel/runtime" "^7.8.7"
     csstype "^2.6.7"
 
-dom-helpers@^5.1.3:
-  version "5.2.0"
-  resolved "https://registry.yarnpkg.com/dom-helpers/-/dom-helpers-5.2.0.tgz#57fd054c5f8f34c52a3eeffdb7e7e93cd357d95b"
-  integrity sha512-Ru5o9+V8CpunKnz5LGgWXkmrH/20cGKwcHwS4m73zIvs54CN9epEmT/HLqFJW3kXpakAFkEdzgy1hzlJe3E4OQ==
-  dependencies:
-    "@babel/runtime" "^7.8.7"
-    csstype "^3.0.2"
-
 dom-serializer@0:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.2.2.tgz#1afb81f533717175d478655debc5e332d9f9bb51"
@@ -13498,11 +13485,6 @@ react-is@^17.0.1:
   resolved "https://registry.yarnpkg.com/react-is/-/react-is-17.0.1.tgz#5b3531bd76a645a4c9fb6e693ed36419e3301339"
   integrity sha512-NAnt2iGDXohE5LI7uBnLnqvLQMtzhkiAOLXTmv+qnF9Ky7xAPcX8Up/xWIhxvLVGJvuLiNc4xQLtuqDRzb4fSA==
 
-react-lifecycles-compat@^3.0.4:
-  version "3.0.4"
-  resolved "https://registry.yarnpkg.com/react-lifecycles-compat/-/react-lifecycles-compat-3.0.4.tgz#4f1a273afdfc8f3488a8c516bfda78f872352362"
-  integrity sha512-fBASbA6LnOU9dOU2eW7aQ8xmYBSXUIWr+UmF9b1efZBazGNO+rcXT/icdKnYm2pTwcRylVUYwW7H1PHfLekVzA==
-
 react-refresh@^0.8.3:
   version "0.8.3"
   resolved "https://registry.yarnpkg.com/react-refresh/-/react-refresh-0.8.3.tgz#721d4657672d400c5e3c75d063c4a85fb2d5d68f"
@@ -13648,18 +13630,6 @@ react-transition-group@^4.3.0:
     loose-envify "^1.4.0"
     prop-types "^15.6.2"
 
-react-virtualized@^9.22.2:
-  version "9.22.2"
-  resolved "https://registry.yarnpkg.com/react-virtualized/-/react-virtualized-9.22.2.tgz#217a870bad91e5438f46f01a009e1d8ce1060a5a"
-  integrity sha512-5j4h4FhxTdOpBKtePSs1yk6LDNT4oGtUwjT7Nkh61Z8vv3fTG/XeOf8J4li1AYaexOwTXnw0HFVxsV0GBUqwRw==
-  dependencies:
-    "@babel/runtime" "^7.7.2"
-    clsx "^1.0.4"
-    dom-helpers "^5.1.3"
-    loose-envify "^1.4.0"
-    prop-types "^15.7.2"
-    react-lifecycles-compat "^3.0.4"
-
 react@^17.0.1:
   version "17.0.1"
   resolved "https://registry.yarnpkg.com/react/-/react-17.0.1.tgz#6e0600416bd57574e3f86d92edba3d9008726127"