feat: [Carousel] support clickDragThreshold props

Author: akai

src/components/Carousel/index.tsx

@@ -7,6 +7,7 @@ export interface CarouselProps {
   className?: string;
   startIndex?: number;
   draggable?: boolean;
+  clickDragThreshold?: number;
   duration?: number;
   easing?: string;
   threshold?: number;
@@ -54,6 +55,7 @@ export const Carousel = React.forwardRef<CarouselHandle, CarouselProps>((props,
     duration = 300,
     easing = 'ease',
     threshold = 20,
+    clickDragThreshold = 10,
     loop = true,
     rtl = false,
     autoPlay = props.autoplay || false,
@@ -88,6 +90,7 @@ export const Carousel = React.forwardRef<CarouselHandle, CarouselProps>((props,
   );
 
   const [activeIndex, setActiveIndex] = useState(getIndex(startIndex));
+  const [isDragging, setDragging] = useState(false);
 
   const enableTransition = useCallback(() => {
     innerRef.current.style.transition = `transform ${duration}ms ${easing}`;
@@ -296,6 +299,10 @@ export const Carousel = React.forwardRef<CarouselHandle, CarouselProps>((props,
       const nextOffset = nextIndex * state.wrapWidth;
       const dragOffset = state.endX - state.startX;
 
+      if (!isDragging && Math.abs(dragOffset) > clickDragThreshold) {
+        setDragging(true);
+      }
+
       // 阻尼
       // if ((activeIndex === 0 && dragOffset > 0) || (activeIndex === count - 1 && dragOffset < 0)) {
       //   dragOffset *= 0.35;
@@ -310,6 +317,7 @@ export const Carousel = React.forwardRef<CarouselHandle, CarouselProps>((props,
     e.stopPropagation();
     const state = stateRef.current;
     state.pressDown = false;
+    setDragging(false);
     enableTransition();
     if (state.endX) {
       updateAfterDrag();
@@ -430,6 +438,7 @@ export const Carousel = React.forwardRef<CarouselHandle, CarouselProps>((props,
         {
           'Carousel--draggable': draggable,
           'Carousel--rtl': rtl,
+          'Carousel--dragging': isDragging,
         },
         className,
       )}

src/components/Carousel/style.less

@@ -14,6 +14,11 @@
   &--rtl {
     direction: rtl;
   }
+  &--dragging {
+    .Carousel-item {
+      pointer-events: none;
+    }
+  }
   &-inner {
     display: flex;
   }

storybook/stories/Carousel.stories.tsx

@@ -44,13 +44,19 @@ ManyImages.args = {
 function TestMethods() {
   const carouselRef = React.useRef(null);
 
+  function handleClick(e) {
+    console.log('click item:', e);
+  }
+
   return (
     <div>
       <Carousel ref={carouselRef}>
         {imgs.map((img, i) => (
-          <div key={i}>
+          <div key={i} onClick={handleClick}>
             <p>{i}</p>
-            <img width="320" src={img} alt="" />
+            <a href="javascript:;">
+              <img width="320" src={img} alt="" />
+            </a>
           </div>
         ))}
       </Carousel>