From 32509861415c3a73c2668a8c489e921ca4e3e0e9 Mon Sep 17 00:00:00 2001
From: Thomas Cristina de Carvalho <thomas@frontvibe.com>
Date: Mon, 5 Feb 2024 12:37:14 -0500
Subject: [PATCH] Add variant selector animation

Update animation

Update
---
 app/components/cart/CartLineItem.tsx       |  3 +
 app/components/layout/Header.tsx           |  3 +
 app/components/product/AddToCartForm.tsx   | 87 +++++++++++---------
 app/components/product/VariantSelector.tsx | 94 ++++++++++++++++------
 app/components/ui/Button.tsx               |  2 +-
 app/lib/framerMotionFeatures.ts            |  4 +-
 6 files changed, 131 insertions(+), 62 deletions(-)

diff --git a/app/components/cart/CartLineItem.tsx b/app/components/cart/CartLineItem.tsx
index 202aed1..5dceb1a 100644
--- a/app/components/cart/CartLineItem.tsx
+++ b/app/components/cart/CartLineItem.tsx
@@ -71,6 +71,9 @@ export function CartLineItem({
     },
   };
 
+  // Animated list implmentation inspired by the fantastic Build UI recipes
+  // (Check out the original at: https://buildui.com/recipes/animated-list)
+  // Credit to the Build UI team for the awesome List animation.
   return (
     <m.li
       animate={
diff --git a/app/components/layout/Header.tsx b/app/components/layout/Header.tsx
index e9b0e59..c8c249d 100644
--- a/app/components/layout/Header.tsx
+++ b/app/components/layout/Header.tsx
@@ -94,6 +94,9 @@ function HeaderAnimation(props: {
     [0, 0, 1],
   );
 
+  // Header animation inspired by the fantastic Build UI recipes
+  // (Check out the original at: https://buildui.com/recipes/fixed-header)
+  // Credit to the Build UI team for the awesome Header animation.
   return (
     <m.header
       className={cn(props.className)}
diff --git a/app/components/product/AddToCartForm.tsx b/app/components/product/AddToCartForm.tsx
index 59a1978..74dd6aa 100644
--- a/app/components/product/AddToCartForm.tsx
+++ b/app/components/product/AddToCartForm.tsx
@@ -1,13 +1,14 @@
 import type {ProductVariantFragmentFragment} from 'storefrontapi.generated';
 
+import {useNavigation} from '@remix-run/react';
 import {CartForm, ShopPayButton} from '@shopify/hydrogen';
-import {cx} from 'class-variance-authority';
 import {useState} from 'react';
 
 import {useEnvironmentVariables} from '~/hooks/useEnvironmentVariables';
 import {useLocalePath} from '~/hooks/useLocalePath';
 import {useSanityThemeContent} from '~/hooks/useSanityThemeContent';
 import {useSelectedVariant} from '~/hooks/useSelectedVariant';
+import {cn} from '~/lib/utils';
 
 import {QuantitySelector} from '../QuantitySelector';
 import CleanString from '../sanity/CleanString';
@@ -18,6 +19,7 @@ export function AddToCartForm(props: {
   showShopPay?: boolean | null;
   variants: ProductVariantFragmentFragment[];
 }) {
+  const navigation = useNavigation();
   const {showQuantitySelector, showShopPay, variants} = props;
   const env = useEnvironmentVariables();
   const {themeContent} = useSanityThemeContent();
@@ -25,6 +27,7 @@ export function AddToCartForm(props: {
   const isOutOfStock = !selectedVariant?.availableForSale;
   const [quantity, setQuantity] = useState(1);
   const cartPath = useLocalePath({path: '/cart'});
+  const navigationIsLoading = navigation.state !== 'idle';
 
   return (
     selectedVariant && (
@@ -58,42 +61,54 @@ export function AddToCartForm(props: {
           }}
           route={cartPath}
         >
-          {(fetcher) => (
-            <div className="grid gap-3">
-              <Button
-                className={cx([isOutOfStock && 'opacity-50'])}
-                data-sanity-edit-target
-                disabled={isOutOfStock || fetcher.state !== 'idle'}
-                type="submit"
-              >
-                {isOutOfStock ? (
-                  <CleanString value={themeContent?.product?.soldOut} />
-                ) : (
-                  <CleanString value={themeContent?.product?.addToCart} />
+          {(fetcher) => {
+            const isLoading = fetcher.state !== 'idle' || navigationIsLoading;
+
+            // Button is disabled if the variant is out of stock or if fetcher is not idle.
+            // Button is also disabled if navigation is loading (new variant is being fetched)
+            // to prevent adding the wrong variant to the cart.
+            return (
+              <div className="grid gap-3">
+                <Button
+                  className={cn([
+                    isOutOfStock && 'opacity-50',
+                    // Opacity does not change when is loading to prevent flickering
+                    'data-[loading="true"]:disabled:opacity-100',
+                  ])}
+                  data-loading={isLoading}
+                  data-sanity-edit-target
+                  disabled={isOutOfStock || isLoading}
+                  type="submit"
+                >
+                  {isOutOfStock ? (
+                    <CleanString value={themeContent?.product?.soldOut} />
+                  ) : (
+                    <CleanString value={themeContent?.product?.addToCart} />
+                  )}
+                </Button>
+                {showShopPay && (
+                  <div className="h-10">
+                    <ShopPayButton
+                      className={cn([
+                        'h-full',
+                        (isLoading || isOutOfStock) &&
+                          'pointer-events-none cursor-default',
+                        isOutOfStock && 'opacity-50',
+                      ])}
+                      storeDomain={`https://${env?.PUBLIC_STORE_DOMAIN!}`}
+                      variantIdsAndQuantities={[
+                        {
+                          id: selectedVariant?.id!,
+                          quantity: quantity,
+                        },
+                      ]}
+                      width="100%"
+                    />
+                  </div>
                 )}
-              </Button>
-              {showShopPay && (
-                <div className="h-10">
-                  <ShopPayButton
-                    className={cx([
-                      'h-full',
-                      (fetcher.state !== 'idle' || isOutOfStock) &&
-                        'pointer-events-none cursor-default',
-                      isOutOfStock && 'opacity-50',
-                    ])}
-                    storeDomain={`https://${env?.PUBLIC_STORE_DOMAIN!}`}
-                    variantIdsAndQuantities={[
-                      {
-                        id: selectedVariant?.id!,
-                        quantity: quantity,
-                      },
-                    ]}
-                    width="100%"
-                  />
-                </div>
-              )}
-            </div>
-          )}
+              </div>
+            );
+          }}
         </CartForm>
       </>
     )
diff --git a/app/components/product/VariantSelector.tsx b/app/components/product/VariantSelector.tsx
index 903badb..f98a65a 100644
--- a/app/components/product/VariantSelector.tsx
+++ b/app/components/product/VariantSelector.tsx
@@ -5,15 +5,14 @@ import type {
 import type {PartialDeep} from 'type-fest';
 import type {PartialObjectDeep} from 'type-fest/source/partial-deep';
 
-import {Link} from '@remix-run/react';
+import {useNavigate} from '@remix-run/react';
 import {parseGid} from '@shopify/hydrogen';
-import {useMemo} from 'react';
+import {m} from 'framer-motion';
+import {useCallback, useMemo, useState} from 'react';
 
 import {useSelectedVariant} from '~/hooks/useSelectedVariant';
 import {cn} from '~/lib/utils';
 
-import {badgeVariants} from '../ui/Badge';
-
 export type VariantOptionValue = {
   isActive: boolean;
   isAvailable: boolean;
@@ -102,26 +101,75 @@ export function VariantSelector(props: {
   return options?.map((option) => (
     <div key={option.name}>
       <div>{option.name}</div>
-      <div className="mt-1 flex gap-2">
-        {option.values?.map(({isActive, isAvailable, search, value}) => (
-          <Link
-            className={cn([
-              badgeVariants({
-                variant: isActive ? 'secondary' : 'outline',
-              }),
-              !isAvailable && 'opacity-50',
-              'px-3 py-[.35rem] hover:bg-muted',
-            ])}
-            key={option.name + value}
-            prefetch="viewport"
-            preventScrollReset
-            replace
-            to={search}
+      <Pills option={option} />
+    </div>
+  ));
+}
+
+function Pills(props: {
+  option: {
+    name: string | undefined;
+    value: string | undefined;
+    values: VariantOptionValue[];
+  };
+}) {
+  const navigate = useNavigate();
+  const {values} = props.option;
+  const [activePill, setActivePill] = useState(values[0]);
+
+  const handleOnClick = useCallback(
+    (value: string, search: string) => {
+      const newActivePill = values.find((option) => option.value === value);
+
+      if (newActivePill) {
+        setActivePill(newActivePill);
+        navigate(search, {
+          preventScrollReset: true,
+          replace: true,
+        });
+      }
+    },
+    [setActivePill, values, navigate],
+  );
+
+  // Animated tabs implementation inspired by the fantastic Build UI recipes
+  // (Check out the original at: https://buildui.com/recipes/animated-tabs)
+  // Credit to the Build UI team for the awesome Pills animation.
+  return (
+    <div className="mt-1 flex flex-wrap items-center gap-x-2 gap-y-3">
+      {props.option.values.map(({isAvailable, search, value}) => (
+        <m.button
+          className={cn([
+            'relative rounded-full text-sm font-medium transition',
+            'focus-visible:outline-none focus-visible:outline-2 focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2',
+            'hover:text-accent-foreground',
+            activePill.value === value && 'text-accent-foreground',
+            !isAvailable && 'opacity-50',
+          ])}
+          key={value}
+          layout
+          layoutRoot
+          onClick={() => handleOnClick(value, search)}
+          style={{
+            WebkitTapHighlightColor: 'transparent',
+          }}
+        >
+          {activePill.value === value && (
+            <m.span
+              className="absolute inset-0 z-10 bg-accent mix-blend-multiply"
+              layoutId={props.option.name}
+              style={{borderRadius: 9999}}
+              transition={{bounce: 0.2, duration: 0.6, type: 'spring'}}
+            />
+          )}
+          <m.span
+            className="inline-flex h-8 select-none items-center justify-center whitespace-nowrap px-3 py-1.5"
+            whileTap={{scale: 0.9}}
           >
             {value}
-          </Link>
-        ))}
-      </div>
+          </m.span>
+        </m.button>
+      ))}
     </div>
-  ));
+  );
 }
diff --git a/app/components/ui/Button.tsx b/app/components/ui/Button.tsx
index 7b04ddc..892bbcc 100644
--- a/app/components/ui/Button.tsx
+++ b/app/components/ui/Button.tsx
@@ -7,7 +7,7 @@ import * as React from 'react';
 import {cn} from '~/lib/utils';
 
 const buttonVariants = cva(
-  'inline-flex items-center justify-center whitespace-nowrap rounded-md font-medium ring-offset-background transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50',
+  'inline-flex items-center justify-center whitespace-nowrap rounded-md font-medium ring-offset-background transition focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50',
   {
     defaultVariants: {
       size: 'default',
diff --git a/app/lib/framerMotionFeatures.ts b/app/lib/framerMotionFeatures.ts
index aa1ab17..1f2bc7a 100644
--- a/app/lib/framerMotionFeatures.ts
+++ b/app/lib/framerMotionFeatures.ts
@@ -1,3 +1,3 @@
-import {domAnimation} from 'framer-motion';
+import {domMax} from 'framer-motion';
 
-export default domAnimation;
+export default domMax;