From c1ed758ad9ae60a47a5b0d92c278f6712366c6b7 Mon Sep 17 00:00:00 2001
From: Thomas Cristina de Carvalho <thomas@frontvibe.com>
Date: Thu, 1 Feb 2024 15:44:12 -0500
Subject: [PATCH] Add header blur and sticky settings

---
 app/components/layout/Header.tsx     | 83 ++++++++++++++++++++++------
 app/components/ui/NavigationMenu.tsx |  2 +-
 app/hooks/useBoundedScroll.tsx       | 27 +++++++++
 app/qroq/queries.ts                  |  4 +-
 studio/schemas/singletons/header.ts  | 21 +++++++
 5 files changed, 119 insertions(+), 18 deletions(-)
 create mode 100644 app/hooks/useBoundedScroll.tsx

diff --git a/app/components/layout/Header.tsx b/app/components/layout/Header.tsx
index 87ef5aa..e4f7839 100644
--- a/app/components/layout/Header.tsx
+++ b/app/components/layout/Header.tsx
@@ -1,8 +1,11 @@
 import type {CSSProperties} from 'react';
 
 import {Link} from '@remix-run/react';
+import {vercelStegaCleanAll} from '@sanity/client/stega';
 import {cx} from 'class-variance-authority';
+import {LazyMotion, m, useTransform} from 'framer-motion';
 
+import {useBoundedScroll} from '~/hooks/useBoundedScroll';
 import {useLocalePath} from '~/hooks/useLocalePath';
 import {useSanityRoot} from '~/hooks/useSanityRoot';
 import {useSettingsCssVars} from '~/hooks/useSettingsCssVars';
@@ -13,31 +16,19 @@ import {CartCount} from './CartCount';
 import {Logo} from './Logo';
 
 export function Header() {
-  return <DesktopHeader />;
-}
-
-function DesktopHeader() {
   const {data} = useSanityRoot();
   const header = data?.header;
   const logoWidth = header?.desktopLogoWidth
     ? `${header?.desktopLogoWidth}px`
     : null;
-  const showSeparatorLine = header?.showSeparatorLine;
+  const homePath = useLocalePath({path: '/'});
   const cssVars = useSettingsCssVars({
     selector: 'header',
     settings: header,
   });
-  const homePath = useLocalePath({path: '/'});
 
   return (
-    <header
-      className={cx([
-        'section-padding relative hidden bg-background text-foreground md:block',
-        headerVariants({
-          optional: showSeparatorLine ? 'separator-line' : null,
-        }),
-      ])}
-    >
+    <HeaderWrapper>
       <style dangerouslySetInnerHTML={{__html: cssVars}} />
       <div className="container">
         <div className="flex items-center justify-between">
@@ -53,11 +44,71 @@ function DesktopHeader() {
             />
           </Link>
           <div className="flex items-center gap-3">
-            <Navigation data={header?.menu} />
+            {/* Desktop navigation */}
+            <div className="hidden md:block">
+              <Navigation data={header?.menu} />
+            </div>
             <CartCount />
           </div>
         </div>
       </div>
-    </header>
+    </HeaderWrapper>
+  );
+}
+
+function HeaderWrapper(props: {children: React.ReactNode}) {
+  const {data} = useSanityRoot();
+  const header = data?.header;
+  const showSeparatorLine = header?.showSeparatorLine;
+  const blur = header?.blur;
+  const sticky = vercelStegaCleanAll(header?.sticky);
+
+  const headerClassName = cx([
+    'section-padding bg-background text-foreground',
+    (sticky === 'onScrollUp' || sticky === 'always') && 'sticky top-0 z-50',
+    blur &&
+      'bg-opacity-95 backdrop-blur supports-[backdrop-filter]:bg-opacity-85',
+    headerVariants({
+      optional: showSeparatorLine ? 'separator-line' : null,
+    }),
+  ]);
+
+  return sticky === 'onScrollUp' ? (
+    <HeaderAnimation className={headerClassName}>
+      {props.children}
+    </HeaderAnimation>
+  ) : (
+    <header className={headerClassName}>{props.children}</header>
+  );
+}
+
+function HeaderAnimation(props: {
+  children: React.ReactNode;
+  className: string;
+}) {
+  // See Animated Sticky Header from Build UI (https://buildui.com/recipes/fixed-header)
+  const loadFeatures = async () =>
+    await import('../../lib/framerMotionFeatures').then((res) => res.default);
+  const {scrollYBoundedProgress} = useBoundedScroll(400);
+  const scrollYBoundedProgressDelayed = useTransform(
+    scrollYBoundedProgress,
+    [0, 0.75, 1],
+    [0, 0, 1],
+  );
+
+  const style = {
+    transform: useTransform(
+      scrollYBoundedProgressDelayed,
+      [0, 1],
+      ['translateY(0)', 'translateY(-100%)'],
+    ),
+  };
+
+  return (
+    <LazyMotion features={loadFeatures} strict>
+      <m.header className={props.className} style={style}>
+        {props.children}
+      </m.header>
+    </LazyMotion>
   );
 }
diff --git a/app/components/ui/NavigationMenu.tsx b/app/components/ui/NavigationMenu.tsx
index ecb2301..f933662 100644
--- a/app/components/ui/NavigationMenu.tsx
+++ b/app/components/ui/NavigationMenu.tsx
@@ -41,7 +41,7 @@ NavigationMenuList.displayName = NavigationMenuPrimitive.List.displayName;
 const NavigationMenuItem = NavigationMenuPrimitive.Item;
 
 const navigationMenuTriggerStyle = cva(
-  'group inline-flex h-8 w-max items-center justify-center rounded-md bg-background px-2 py-2 text-sm font-medium transition-colors hover:bg-accent hover:text-accent-foreground focus:bg-accent focus:text-accent-foreground focus:outline-none disabled:pointer-events-none disabled:opacity-50 data-[active]:bg-accent/50 data-[state=open]:bg-accent/50',
+  'group inline-flex h-8 w-max items-center justify-center rounded-md px-2 py-2 text-sm font-medium transition-colors hover:bg-accent hover:text-accent-foreground focus:bg-accent focus:text-accent-foreground focus:outline-none disabled:pointer-events-none disabled:opacity-50 data-[active]:bg-accent/50 data-[state=open]:bg-accent/50',
 );
 
 const NavigationMenuTrigger = forwardRef<
diff --git a/app/hooks/useBoundedScroll.tsx b/app/hooks/useBoundedScroll.tsx
new file mode 100644
index 0000000..6ba90f5
--- /dev/null
+++ b/app/hooks/useBoundedScroll.tsx
@@ -0,0 +1,27 @@
+import {useMotionValue, useScroll, useTransform} from 'framer-motion';
+import {useEffect} from 'react';
+
+export function useBoundedScroll(threshold: number) {
+  const {scrollY} = useScroll();
+  const scrollYBounded = useMotionValue(0);
+  const scrollYBoundedProgress = useTransform(
+    scrollYBounded,
+    [0, threshold],
+    [0, 1],
+  );
+
+  useEffect(() => {
+    return scrollY.on('change', (current) => {
+      const previous = scrollY.getPrevious() ?? 0;
+      const diff = current - previous;
+      const newScrollYBounded = scrollYBounded.get() + diff;
+
+      scrollYBounded.set(clamp(newScrollYBounded, 0, threshold));
+    });
+  }, [threshold, scrollY, scrollYBounded]);
+
+  return {scrollYBounded, scrollYBoundedProgress};
+}
+
+const clamp = (number: number, min: number, max: number) =>
+  Math.min(Math.max(number, min), max);
diff --git a/app/qroq/queries.ts b/app/qroq/queries.ts
index 76a0929..62e2a82 100644
--- a/app/qroq/queries.ts
+++ b/app/qroq/queries.ts
@@ -1,4 +1,4 @@
-import {q} from 'groqd';
+import {q, z} from 'groqd';
 
 import {FOOTERS_FRAGMENT} from './footers';
 import {
@@ -143,6 +143,7 @@ export const HEADER_QUERY = q('*')
       .deref()
       .grab(COLOR_SCHEME_FRAGMENT),
     autoRotateAnnoucements: q.boolean().nullable(),
+    blur: q.boolean().nullable(),
     colorScheme: q('colorScheme').deref().grab(COLOR_SCHEME_FRAGMENT),
     desktopLogoWidth: q.number().nullable(),
     menu: MENU_FRAGMENT,
@@ -153,6 +154,7 @@ export const HEADER_QUERY = q('*')
       })
       .nullable(),
     showSeparatorLine: q.boolean().nullable(),
+    sticky: z.enum(['none', 'always', 'onScrollUp']).nullable(),
   })
   .slice(0)
   .nullable();
diff --git a/studio/schemas/singletons/header.ts b/studio/schemas/singletons/header.ts
index bf7e91a..6218ca8 100644
--- a/studio/schemas/singletons/header.ts
+++ b/studio/schemas/singletons/header.ts
@@ -51,6 +51,27 @@ export default defineType({
       group: 'settings',
       to: [{type: 'colorScheme'}],
     }),
+    defineField({
+      name: 'blur',
+      title: 'Background blur',
+      type: 'boolean',
+      group: 'settings',
+      initialValue: false,
+    }),
+    defineField({
+      name: 'sticky',
+      title: 'Sticky header',
+      type: 'string',
+      group: 'settings',
+      options: {
+        list: [
+          {title: 'None', value: 'none'},
+          {title: 'On scroll up', value: 'onScrollUp'},
+          {title: 'Always', value: 'always'},
+        ],
+      },
+      initialValue: 'none',
+    }),
     defineField({
       name: 'showSeparatorLine',
       title: 'Show separator line',