From 67972a74dc745db246ddbcd6984bba142cfbb176 Mon Sep 17 00:00:00 2001
From: bang9 <gusrn1423@naver.com>
Date: Mon, 25 Nov 2024 16:24:34 +0900
Subject: [PATCH] feat: apply rtl to carousel

---
 src/components/messages/CarouselMessage.tsx | 25 ++++++++++++++-------
 src/components/ui/SnapCarousel/index.tsx    | 16 ++++++-------
 2 files changed, 24 insertions(+), 17 deletions(-)

diff --git a/src/components/messages/CarouselMessage.tsx b/src/components/messages/CarouselMessage.tsx
index 19bcf393b..7b78c85a6 100644
--- a/src/components/messages/CarouselMessage.tsx
+++ b/src/components/messages/CarouselMessage.tsx
@@ -11,7 +11,7 @@ import { SnapCarousel } from '../ui/SnapCarousel';
 const listPadding = 16;
 const avatarSize = 28;
 const avatarMargin = 8;
-const leftMargin = avatarSize + avatarMargin + listPadding;
+const startMargin = avatarSize + avatarMargin + listPadding;
 
 const BodyWrapper = styled.div({
   display: 'flex',
@@ -49,7 +49,7 @@ const Image = styled.img`
   background-color: ${({ theme }) => theme.bgColor.carouselItem};
 `;
 
-const Button = styled.button<{ direction: 'left' | 'right' }>(({ theme, direction }) => ({
+const Button = styled.button<{ direction: 'start' | 'end' }>(({ theme, direction }) => ({
   display: 'flex',
   justifyContent: 'center',
   alignItems: 'center',
@@ -58,14 +58,23 @@ const Button = styled.button<{ direction: 'left' | 'right' }>(({ theme, directio
   transform: 'translateY(-50%)',
   border: 'none',
   cursor: 'pointer',
-  borderRadius: direction === 'right' ? '100px 0px 0px 100px' : '0px 100px 100px 0px',
-  padding: direction === 'right' ? '8px 8px 8px 12px' : '8px 12px 8px 8px',
+  borderStartStartRadius: direction === 'start' ? 0 : 100,
+  borderStartEndRadius: direction === 'end' ? 0 : 100,
+  borderEndStartRadius: direction === 'start' ? 0 : 100,
+  borderEndEndRadius: direction === 'end' ? 0 : 100,
+  paddingTop: 8,
+  paddingBottom: 8,
+  paddingInlineStart: direction === 'end' ? 12 : 8,
+  paddingInlineEnd: direction === 'start' ? 12 : 8,
   backgroundColor: theme.bgColor.carouselButton,
   boxShadow:
     '0px 8px 10px 1px rgba(13, 13, 13, 0.12), 0px 3px 14px 2px rgba(13, 13, 13, 0.08), 0px 3px 5px -3px rgba(13, 13, 13, 0.04)',
   '&:hover': {
     backgroundColor: theme.bgColor.hover.carouselButton,
   },
+  '[dir=rtl] & svg': {
+    transform: 'scaleX(-1)',
+  },
 }));
 
 type Props = {
@@ -85,20 +94,20 @@ export const CarouselMessage = ({ streaming, textBody, streamingBody, items }: P
 
     return (
       <SnapCarousel
-        startPadding={leftMargin}
+        startPadding={startMargin}
         endPadding={listPadding}
         gap={avatarMargin}
-        style={{ marginInlineStart: -leftMargin, marginInlineEnd: -listPadding }}
+        style={{ marginInlineStart: -startMargin, marginInlineEnd: -listPadding }}
         renderButtons={({ activeIndex, onClickPrev, onClickNext }) =>
           shouldRenderButtons && (
             <>
               {activeIndex !== 0 && (
-                <Button style={{ insetInlineStart: -leftMargin }} onClick={onClickPrev} direction={'left'}>
+                <Button style={{ insetInlineStart: -startMargin }} onClick={onClickPrev} direction={'start'}>
                   <ChevronLeft width={24} height={24} fill={theme.bgColor.carouselButtonIcon} />
                 </Button>
               )}
               {activeIndex !== items.length - 1 && (
-                <Button style={{ insetInlineEnd: -listPadding }} onClick={onClickNext} direction={'right'}>
+                <Button style={{ insetInlineEnd: -listPadding }} onClick={onClickNext} direction={'end'}>
                   <ChevronRight width={24} height={24} fill={theme.bgColor.carouselButtonIcon} />
                 </Button>
               )}
diff --git a/src/components/ui/SnapCarousel/index.tsx b/src/components/ui/SnapCarousel/index.tsx
index 83fc8db62..fb4f30e8a 100644
--- a/src/components/ui/SnapCarousel/index.tsx
+++ b/src/components/ui/SnapCarousel/index.tsx
@@ -11,7 +11,7 @@ const Container = styled.div({
   overflowY: 'scroll',
   gap: 12,
   scrollPadding: 0,
-  paddingLeft: 0,
+  paddingInlineStart: 0,
   scrollbarWidth: 'none',
   userSelect: 'none',
   '::-webkit-scrollbar': {
@@ -58,25 +58,23 @@ export const SnapCarousel = ({
 }: SnapCarouselProps) => {
   const ref = useRef<HTMLDivElement>(null);
   const [activeIndex, setActiveState] = useState(0);
-  const itemLength = React.Children.toArray(children).length;
 
+  const direction = (ref.current ? getComputedStyle(ref.current).direction : 'ltr') as 'rtl' | 'ltr';
+  const itemLength = React.Children.toArray(children).length;
   const itemWidth = useMemo(() => {
     const total = ref.current?.scrollWidth ?? 0;
     return (total - (startPadding + endPadding + gap * (itemLength - 1))) / itemLength;
   }, [ref.current?.scrollWidth, itemLength, gap, startPadding, endPadding]);
 
   const onScroll = (e: React.UIEvent<HTMLDivElement>) => {
-    const idx = Math.round(e.currentTarget.scrollLeft / itemWidth);
+    const idx = Math.round(e.currentTarget.scrollLeft / itemWidth) * (direction === 'ltr' ? 1 : -1);
     if (idx !== activeIndex) setActiveState(idx);
   };
 
   const scrollTo = (index: number) => {
     if (ref.current) {
       const nextIdx = Math.min(Math.max(0, index), itemLength - 1);
-      ref.current.scroll({
-        left: nextIdx * itemWidth,
-        behavior: 'smooth',
-      });
+      ref.current.scroll({ left: nextIdx * itemWidth * (direction === 'ltr' ? 1 : -1), behavior: 'smooth' });
     }
   };
 
@@ -88,8 +86,8 @@ export const SnapCarousel = ({
         style={{
           gap,
           scrollPadding: startPadding,
-          paddingLeft: startPadding,
-          paddingRight: endPadding,
+          paddingInlineStart: startPadding,
+          paddingInlineEnd: endPadding,
           ...style,
         }}
       >