feat: sticky list mode switcher

src/components/BottomNavigationBar/index.tsx

@@ -1,15 +1,18 @@
 import { cn } from '@/lib/utils'
+import { useDeepBrowsing } from '@/providers/DeepBrowsingProvider'
+import AccountButton from './AccountButton'
 import HomeButton from './HomeButton'
 import NotificationsButton from './NotificationsButton'
 import PostButton from './PostButton'
-import AccountButton from './AccountButton'
 
-export default function BottomNavigationBar({ visible = true }: { visible?: boolean }) {
+export default function BottomNavigationBar() {
+  const { deepBrowsing } = useDeepBrowsing()
+
   return (
     <div
       className={cn(
         'fixed bottom-0 w-full z-20 bg-background/80 backdrop-blur-xl duration-700 transition-transform flex items-center justify-around [&_svg]:size-4 [&_svg]:shrink-0',
-        visible ? '' : 'translate-y-full'
+        deepBrowsing ? 'translate-y-full' : ''
       )}
       style={{
         height: 'calc(3rem + env(safe-area-inset-bottom))',

src/components/NoteList/index.tsx

@@ -3,6 +3,7 @@ import { PICTURE_EVENT_KIND } from '@/constants'
 import { isReplyNoteEvent } from '@/lib/event'
 import { checkAlgoRelay } from '@/lib/relay'
 import { cn } from '@/lib/utils'
+import { useDeepBrowsing } from '@/providers/DeepBrowsingProvider'
 import { useMuteList } from '@/providers/MuteListProvider'
 import { useNostr } from '@/providers/NostrProvider'
 import { useScreenSize } from '@/providers/ScreenSizeProvider'
@@ -236,9 +237,15 @@ function ListModeSwitch({
   setListMode: (listMode: TNoteListMode) => void
 }) {
   const { t } = useTranslation()
+  const { deepBrowsing } = useDeepBrowsing()
 
   return (
-    <div>
+    <div
+      className={cn(
+        'sticky top-12 bg-background z-10 duration-700 transition-transform',
+        deepBrowsing ? '-translate-y-[calc(100%+12rem)]' : ''
+      )}
+    >
       <div className="flex">
         <div
           className={`w-1/3 text-center py-2 font-semibold clickable cursor-pointer rounded-lg ${listMode === 'posts' ? '' : 'text-muted-foreground'}`}

src/components/ScrollToTopButton/index.tsx

@@ -1,21 +1,22 @@
 import { Button } from '@/components/ui/button'
 import { cn } from '@/lib/utils'
+import { useDeepBrowsing } from '@/providers/DeepBrowsingProvider'
 import { useScreenSize } from '@/providers/ScreenSizeProvider'
 import { ChevronUp } from 'lucide-react'
 
 export default function ScrollToTopButton({
   scrollAreaRef,
-  className,
-  visible = true
+  className
 }: {
-  scrollAreaRef: React.RefObject<HTMLDivElement>
+  scrollAreaRef?: React.RefObject<HTMLDivElement>
   className?: string
-  visible?: boolean
 }) {
   const { isSmallScreen } = useScreenSize()
+  const { deepBrowsing, lastScrollTop } = useDeepBrowsing()
+  const visible = !deepBrowsing && lastScrollTop > 800
 
   const handleScrollToTop = () => {
-    if (isSmallScreen) {
+    if (!scrollAreaRef) {
       window.scrollTo({ top: 0, behavior: 'smooth' })
       return
     }

src/components/Titlebar/index.tsx

@@ -1,19 +1,22 @@
 import { cn } from '@/lib/utils'
+import { useDeepBrowsing } from '@/providers/DeepBrowsingProvider'
+import { useScreenSize } from '@/providers/ScreenSizeProvider'
 
 export function Titlebar({
   children,
-  className,
-  visible = true
+  className
 }: {
   children?: React.ReactNode
   className?: string
-  visible?: boolean
 }) {
+  const { isSmallScreen } = useScreenSize()
+  const { deepBrowsing } = useDeepBrowsing()
+
   return (
     <div
       className={cn(
-        'fixed sm:sticky top-0 w-full z-20 bg-background duration-700 transition-transform [&_svg]:size-4 [&_svg]:shrink-0',
-        visible ? '' : '-translate-y-full',
+        'sticky top-0 w-full z-20 bg-background duration-700 transition-transform [&_svg]:size-4 [&_svg]:shrink-0',
+        isSmallScreen && deepBrowsing ? '-translate-y-full' : '',
         className
       )}
     >

src/layouts/PrimaryPageLayout/index.tsx

@@ -3,8 +3,9 @@ import ScrollToTopButton from '@/components/ScrollToTopButton'
 import { Titlebar } from '@/components/Titlebar'
 import { ScrollArea } from '@/components/ui/scroll-area'
 import { TPrimaryPageName, usePrimaryPage } from '@/PageManager'
+import { DeepBrowsingProvider } from '@/providers/DeepBrowsingProvider'
 import { useScreenSize } from '@/providers/ScreenSizeProvider'
-import { forwardRef, useEffect, useImperativeHandle, useRef, useState } from 'react'
+import { forwardRef, useEffect, useImperativeHandle, useRef } from 'react'
 
 const PrimaryPageLayout = forwardRef(
   (
@@ -22,8 +23,6 @@ const PrimaryPageLayout = forwardRef(
     ref
   ) => {
     const scrollAreaRef = useRef<HTMLDivElement>(null)
-    const [visible, setVisible] = useState(true)
-    const [lastScrollTop, setLastScrollTop] = useState(0)
     const { isSmallScreen } = useScreenSize()
     const { current } = usePrimaryPage()
 
@@ -44,77 +43,39 @@ const PrimaryPageLayout = forwardRef(
     useEffect(() => {
       if (isSmallScreen) {
         window.scrollTo({ top: 0 })
-        setVisible(true)
         return
       }
     }, [current])
 
-    useEffect(() => {
-      if (current !== pageName) return
-
-      const handleScroll = () => {
-        const atBottom = isSmallScreen
-          ? window.innerHeight + window.scrollY >= document.body.offsetHeight - 20
-          : scrollAreaRef.current
-            ? scrollAreaRef.current?.clientHeight + scrollAreaRef.current?.scrollTop >=
-              scrollAreaRef.current?.scrollHeight - 20
-            : false
-        if (atBottom) {
-          setVisible(true)
-          return
-        }
-
-        const scrollTop = (isSmallScreen ? window.scrollY : scrollAreaRef.current?.scrollTop) || 0
-        const diff = scrollTop - lastScrollTop
-        if (scrollTop <= 800) {
-          setVisible(true)
-          setLastScrollTop(scrollTop)
-          return
-        }
-
-        if (diff > 20) {
-          setVisible(false)
-          setLastScrollTop(scrollTop)
-        } else if (diff < -20) {
-          setVisible(true)
-          setLastScrollTop(scrollTop)
-        }
-      }
-
-      if (isSmallScreen) {
-        window.addEventListener('scroll', handleScroll)
-        return () => {
-          window.removeEventListener('scroll', handleScroll)
-        }
-      }
-
-      scrollAreaRef.current?.addEventListener('scroll', handleScroll)
-      return () => {
-        scrollAreaRef.current?.removeEventListener('scroll', handleScroll)
-      }
-    }, [lastScrollTop, isSmallScreen, current])
+    if (isSmallScreen) {
+      return (
+        <DeepBrowsingProvider active={current === pageName}>
+          <div
+            style={{
+              paddingBottom: 'calc(env(safe-area-inset-bottom) + 3rem)'
+            }}
+          >
+            {titlebar && <PrimaryPageTitlebar>{titlebar}</PrimaryPageTitlebar>}
+            {children}
+            {displayScrollToTopButton && <ScrollToTopButton />}
+            <BottomNavigationBar />
+          </div>
+        </DeepBrowsingProvider>
+      )
+    }
 
     return (
-      <ScrollArea
-        className="sm:h-screen sm:overflow-auto pt-12 sm:pt-0"
-        scrollBarClassName="sm:z-50"
-        ref={scrollAreaRef}
-        style={{
-          paddingBottom: isSmallScreen ? 'calc(env(safe-area-inset-bottom) + 3rem)' : ''
-        }}
-      >
-        {titlebar && (
-          <PrimaryPageTitlebar visible={!isSmallScreen || visible}>{titlebar}</PrimaryPageTitlebar>
-        )}
-        <div className="overflow-x-hidden">{children}</div>
-        {displayScrollToTopButton && (
-          <ScrollToTopButton
-            scrollAreaRef={scrollAreaRef}
-            visible={visible && lastScrollTop > 800}
-          />
-        )}
-        {isSmallScreen && <BottomNavigationBar visible={visible} />}
-      </ScrollArea>
+      <DeepBrowsingProvider active={current === pageName} scrollAreaRef={scrollAreaRef}>
+        <ScrollArea
+          className="h-screen overflow-auto"
+          scrollBarClassName="z-50"
+          ref={scrollAreaRef}
+        >
+          {titlebar && <PrimaryPageTitlebar>{titlebar}</PrimaryPageTitlebar>}
+          {children}
+        </ScrollArea>
+        {displayScrollToTopButton && <ScrollToTopButton scrollAreaRef={scrollAreaRef} />}
+      </DeepBrowsingProvider>
     )
   }
 )
@@ -125,16 +86,6 @@ export type TPrimaryPageLayoutRef = {
   scrollToTop: () => void
 }
 
-function PrimaryPageTitlebar({
-  children,
-  visible = true
-}: {
-  children?: React.ReactNode
-  visible?: boolean
-}) {
-  return (
-    <Titlebar className="h-12 p-1" visible={visible}>
-      {children}
-    </Titlebar>
-  )
+function PrimaryPageTitlebar({ children }: { children?: React.ReactNode }) {
+  return <Titlebar className="h-12 p-1">{children}</Titlebar>
 }

src/layouts/SecondaryPageLayout/index.tsx

@@ -4,8 +4,9 @@ import ScrollToTopButton from '@/components/ScrollToTopButton'
 import { Titlebar } from '@/components/Titlebar'
 import { ScrollArea } from '@/components/ui/scroll-area'
 import { useSecondaryPage } from '@/PageManager'
+import { DeepBrowsingProvider } from '@/providers/DeepBrowsingProvider'
 import { useScreenSize } from '@/providers/ScreenSizeProvider'
-import { useEffect, useRef, useState } from 'react'
+import { useEffect, useRef } from 'react'
 
 export default function SecondaryPageLayout({
   children,
@@ -23,118 +24,64 @@ export default function SecondaryPageLayout({
   displayScrollToTopButton?: boolean
 }): JSX.Element {
   const scrollAreaRef = useRef<HTMLDivElement>(null)
-  const [visible, setVisible] = useState(true)
-  const [lastScrollTop, setLastScrollTop] = useState(0)
   const { isSmallScreen } = useScreenSize()
   const { currentIndex } = useSecondaryPage()
 
   useEffect(() => {
     if (isSmallScreen) {
       window.scrollTo({ top: 0 })
-      setVisible(true)
       return
     }
   }, [])
 
-  useEffect(() => {
-    if (currentIndex !== index) return
-
-    const handleScroll = () => {
-      const atBottom = isSmallScreen
-        ? window.innerHeight + window.scrollY >= document.body.offsetHeight - 20
-        : scrollAreaRef.current
-          ? scrollAreaRef.current?.clientHeight + scrollAreaRef.current?.scrollTop >=
-            scrollAreaRef.current?.scrollHeight - 20
-          : false
-      if (atBottom) {
-        setVisible(true)
-        return
-      }
-
-      const scrollTop = (isSmallScreen ? window.scrollY : scrollAreaRef.current?.scrollTop) || 0
-      const diff = scrollTop - lastScrollTop
-      if (scrollTop <= 800) {
-        setVisible(true)
-        setLastScrollTop(scrollTop)
-        return
-      }
-
-      if (diff > 20) {
-        setVisible(false)
-        setLastScrollTop(scrollTop)
-      } else if (diff < -20) {
-        setVisible(true)
-        setLastScrollTop(scrollTop)
-      }
-    }
-
-    if (isSmallScreen) {
-      window.addEventListener('scroll', handleScroll)
-      return () => {
-        window.removeEventListener('scroll', handleScroll)
-      }
-    }
-
-    scrollAreaRef.current?.addEventListener('scroll', handleScroll)
-    return () => {
-      scrollAreaRef.current?.removeEventListener('scroll', handleScroll)
-    }
-  }, [lastScrollTop, isSmallScreen, currentIndex])
+  if (isSmallScreen) {
+    return (
+      <DeepBrowsingProvider active={currentIndex === index}>
+        <div
+          style={{
+            paddingBottom: 'calc(env(safe-area-inset-bottom) + 3rem)'
+          }}
+        >
+          <SecondaryPageTitlebar
+            title={title}
+            controls={controls}
+            hideBackButton={hideBackButton}
+          />
+          <div className="pb-4 mt-2">{children}</div>
+          {displayScrollToTopButton && <ScrollToTopButton />}
+          <BottomNavigationBar />
+        </div>
+      </DeepBrowsingProvider>
+    )
+  }
 
   return (
-    <ScrollArea
-      className="sm:h-screen sm:overflow-auto pt-12 sm:pt-0"
-      scrollBarClassName="sm:z-50"
-      ref={scrollAreaRef}
-      style={{
-        paddingBottom: isSmallScreen ? 'calc(env(safe-area-inset-bottom) + 3rem)' : ''
-      }}
-    >
-      <SecondaryPageTitlebar
-        title={title}
-        controls={controls}
-        hideBackButton={hideBackButton}
-        visible={visible}
-      />
-      <div className="pb-4 mt-2">{children}</div>
-      {displayScrollToTopButton && (
-        <ScrollToTopButton scrollAreaRef={scrollAreaRef} visible={visible && lastScrollTop > 800} />
-      )}
-      {isSmallScreen && <BottomNavigationBar visible={visible} />}
-    </ScrollArea>
+    <DeepBrowsingProvider active={currentIndex === index} scrollAreaRef={scrollAreaRef}>
+      <ScrollArea
+        className="h-screen overflow-auto"
+        scrollBarClassName="sm:z-50"
+        ref={scrollAreaRef}
+      >
+        <SecondaryPageTitlebar title={title} controls={controls} hideBackButton={hideBackButton} />
+        <div className="pb-4 mt-2">{children}</div>
+      </ScrollArea>
+      {displayScrollToTopButton && <ScrollToTopButton scrollAreaRef={scrollAreaRef} />}
+    </DeepBrowsingProvider>
   )
 }
 
 export function SecondaryPageTitlebar({
   title,
   controls,
-  hideBackButton = false,
-  visible = true
+  hideBackButton = false
 }: {
   title?: React.ReactNode
   controls?: React.ReactNode
   hideBackButton?: boolean
-  visible?: boolean
 }): JSX.Element {
-  const { isSmallScreen } = useScreenSize()
-
-  if (isSmallScreen) {
-    return (
-      <Titlebar
-        className="h-12 flex gap-1 p-1 items-center justify-between font-semibold"
-        visible={visible}
-      >
-        <BackButton hide={hideBackButton}>{title}</BackButton>
-        <div className="flex-shrink-0">{controls}</div>
-      </Titlebar>
-    )
-  }
-
   return (
-    <Titlebar className="h-12 flex gap-1 p-1 justify-between items-center font-semibold">
-      <div className="flex items-center gap-1 flex-1 w-0">
-        <BackButton hide={hideBackButton}>{title}</BackButton>
-      </div>
+    <Titlebar className="h-12 flex gap-1 p-1 items-center justify-between font-semibold">
+      <BackButton hide={hideBackButton}>{title}</BackButton>
       <div className="flex-shrink-0">{controls}</div>
     </Titlebar>
   )

src/providers/DeepBrowsingProvider.tsx

@@ -0,0 +1,80 @@
+import { createContext, useContext, useEffect, useState } from 'react'
+
+type TDeepBrowsingContext = {
+  deepBrowsing: boolean
+  lastScrollTop: number
+}
+
+const DeepBrowsingContext = createContext<TDeepBrowsingContext | undefined>(undefined)
+
+export const useDeepBrowsing = () => {
+  const context = useContext(DeepBrowsingContext)
+  if (!context) {
+    throw new Error('useDeepBrowsing must be used within a DeepBrowsingProvider')
+  }
+  return context
+}
+
+export function DeepBrowsingProvider({
+  children,
+  active,
+  scrollAreaRef
+}: {
+  children: React.ReactNode
+  active: boolean
+  scrollAreaRef?: React.RefObject<HTMLDivElement>
+}) {
+  const [deepBrowsing, setDeepBrowsing] = useState(false)
+  const [lastScrollTop, setLastScrollTop] = useState(0)
+
+  useEffect(() => {
+    if (!active) return
+
+    const handleScroll = () => {
+      const atBottom = !scrollAreaRef
+        ? window.innerHeight + window.scrollY >= document.body.offsetHeight - 20
+        : scrollAreaRef.current
+          ? scrollAreaRef.current?.clientHeight + scrollAreaRef.current?.scrollTop >=
+            scrollAreaRef.current?.scrollHeight - 20
+          : false
+      if (atBottom) {
+        setDeepBrowsing(false)
+        return
+      }
+
+      const scrollTop = (!scrollAreaRef ? window.scrollY : scrollAreaRef.current?.scrollTop) || 0
+      const diff = scrollTop - lastScrollTop
+      if (scrollTop <= 800) {
+        setDeepBrowsing(false)
+        setLastScrollTop(scrollTop)
+        return
+      }
+
+      if (diff > 20) {
+        setDeepBrowsing(true)
+        setLastScrollTop(scrollTop)
+      } else if (diff < -20) {
+        setDeepBrowsing(false)
+        setLastScrollTop(scrollTop)
+      }
+    }
+
+    if (!scrollAreaRef) {
+      window.addEventListener('scroll', handleScroll)
+      return () => {
+        window.removeEventListener('scroll', handleScroll)
+      }
+    }
+
+    scrollAreaRef.current?.addEventListener('scroll', handleScroll)
+    return () => {
+      scrollAreaRef.current?.removeEventListener('scroll', handleScroll)
+    }
+  }, [lastScrollTop, active])
+
+  return (
+    <DeepBrowsingContext.Provider value={{ deepBrowsing, lastScrollTop }}>
+      {children}
+    </DeepBrowsingContext.Provider>
+  )
+}