♻️ refactor: 初步完成组件重构

packages/sortable-list/src/DraggingOverlay.tsx

@@ -0,0 +1,63 @@
+import React from 'react';
+import { DragOverlay } from '@dnd-kit/core';
+import { Item } from './components';
+import type { FC } from 'react';
+
+import type { SortableItem, SortableProps } from './types';
+
+interface DraggingOverlayProps
+  extends Pick<
+    SortableProps,
+    | 'adjustScale'
+    | 'dropAnimation'
+    | 'renderItem'
+    | 'handle'
+    | 'wrapperStyle'
+    | 'getItemStyles'
+  > {
+  dragging: boolean;
+  item: SortableItem;
+  activeIndex: number;
+  activeId: string;
+}
+
+const DraggingOverlay: FC<DraggingOverlayProps> = ({
+  dragging,
+  dropAnimation,
+  adjustScale,
+  item,
+  renderItem,
+  handle,
+  getItemStyles,
+  wrapperStyle,
+  activeIndex,
+  activeId,
+}) => {
+  return (
+    <DragOverlay adjustScale={adjustScale} dropAnimation={dropAnimation}>
+      {dragging ? (
+        <Item
+          value={item.id}
+          handle={handle}
+          renderItem={renderItem}
+          wrapperStyle={wrapperStyle({
+            index: activeIndex,
+            isDragging: true,
+            id: item.id,
+          })}
+          style={getItemStyles({
+            id: item.id,
+            index: activeIndex,
+            isSorting: activeId !== null,
+            isDragging: true,
+            overIndex: -1,
+            isDragOverlay: true,
+          })}
+          dragOverlay
+        />
+      ) : null}
+    </DragOverlay>
+  );
+};
+
+export default DraggingOverlay;

packages/sortable-list/src/Sortable.tsx

@@ -1,10 +1,9 @@
 import type { FC } from 'react';
-import React, { useCallback, useState } from 'react';
+import React from 'react';
 import { createPortal } from 'react-dom';
 
 import {
   closestCenter,
-  DragOverlay,
   DndContext,
   KeyboardSensor,
   MouseSensor,
@@ -14,16 +13,20 @@ import {
 } from '@dnd-kit/core';
 
 import {
-  arrayMove,
   SortableContext,
   sortableKeyboardCoordinates,
 } from '@dnd-kit/sortable';
-import useMergeState from 'use-merge-value';
 
-import { Item } from './Item';
-import { Wrapper } from './Wrapper';
+import { Wrapper } from './components';
+
 import SortableItem from './SortableItem';
-import type { SortableItemList, SortableProps } from './types';
+import DraggingOverlay from './DraggingOverlay';
+
+import type { SortableProps } from './types';
+
+import { useSortableList } from './hooks/useSortableList';
+import { useActiveItem } from './hooks/useActiveItem';
+import { getIndexOfActiveItem } from './utils';
 
 export const Sortable: FC<SortableProps> = ({
   activationConstraint,
@@ -44,20 +47,12 @@ export const Sortable: FC<SortableProps> = ({
   modifiers,
   removable,
   renderItem,
-  reorderItems = arrayMove,
   strategy,
   style,
   useDragOverlay = true,
   wrapperStyle = () => ({}),
+  direction,
 }) => {
-  const [items, setItems] = useMergeState<SortableItemList>([], {
-    value: controlledItems,
-    defaultValue: defaultItems,
-    onChange: onItemChange,
-  });
-
-  const [activeId, setActiveId] = useState<string | null>(null);
-
   const sensors = useSensors(
     useSensor(MouseSensor, {
       activationConstraint,
@@ -70,96 +65,82 @@ export const Sortable: FC<SortableProps> = ({
     }),
   );
 
-  const getIndex = items.indexOf.bind(items);
-  const activeIndex = activeId ? getIndex(activeId) : -1;
+  const { items, dispatchSortable } = useSortableList({
+    value: controlledItems,
+    defaultValue: defaultItems,
+    onChange: onItemChange,
+  });
 
-  const handleRemove = useCallback(
-    (id: string) => {
-      if (!removable) return;
+  const { deactivateItem, activateItem, activeId, isDragging } =
+    useActiveItem();
 
-      const newItem = items.filter((item) => item.id !== id);
-      setItems(newItem);
-    },
-    [removable, items],
-  );
+  const activeIndex = getIndexOfActiveItem(items, activeId);
+
+  const handleRemove = (id: string) => {
+    if (!removable) return;
+
+    dispatchSortable({ type: 'removeItem', id });
+  };
 
   return (
     <DndContext
       sensors={sensors}
       collisionDetection={collisionDetection}
       onDragStart={({ active }) => {
-        if (!active) {
-          return;
-        }
+        if (!active) return;
 
-        setActiveId(active.id);
+        activateItem(active.id);
       }}
       onDragEnd={({ over }) => {
-        setActiveId(null);
-
         if (over) {
-          const overIndex = getIndex(over.id);
-          if (activeIndex !== overIndex) {
-            const newItems = reorderItems(items, activeIndex, overIndex);
+          const endIndex = getIndexOfActiveItem(items, over.id);
 
-            setItems(newItems);
-          }
+          dispatchSortable({
+            type: 'reorder',
+            startIndex: activeIndex,
+            endIndex,
+          });
         }
+        deactivateItem();
       }}
-      onDragCancel={() => setActiveId(null)}
+      onDragCancel={() => deactivateItem()}
       measuring={measuring}
       modifiers={modifiers}
     >
-      <Wrapper style={style}>
-        <SortableContext items={items} strategy={strategy}>
-          <Container>
-            {items.map((value, index) => (
-              <SortableItem
-                key={value.id}
-                id={value.id}
-                handle={handle}
-                index={index}
-                style={getItemStyles}
-                wrapperStyle={wrapperStyle}
-                disabled={isDisabled(value.id)}
-                renderItem={renderItem}
-                onRemove={handleRemove}
-                animateLayoutChanges={animateLayoutChanges}
-                useDragOverlay={useDragOverlay}
-                getNewIndex={getNewIndex}
-              />
-            ))}
-          </Container>
-        </SortableContext>
-      </Wrapper>
+      <SortableContext items={items} strategy={strategy}>
+        <Container style={style}>
+          {items.map((value, index) => (
+            <SortableItem
+              key={value.id}
+              id={value.id}
+              handle={handle}
+              index={index}
+              style={getItemStyles}
+              wrapperStyle={wrapperStyle}
+              disabled={isDisabled(value.id)}
+              renderItem={renderItem}
+              onRemove={handleRemove}
+              animateLayoutChanges={animateLayoutChanges}
+              useDragOverlay={useDragOverlay}
+              getNewIndex={getNewIndex}
+            />
+          ))}
+        </Container>
+      </SortableContext>
       {useDragOverlay
         ? createPortal(
-            <DragOverlay
+            <DraggingOverlay
               adjustScale={adjustScale}
               dropAnimation={dropAnimation}
-            >
-              {activeId ? (
-                <Item
-                  value={items[activeIndex]}
-                  handle={handle}
-                  renderItem={renderItem}
-                  wrapperStyle={wrapperStyle({
-                    index: activeIndex,
-                    isDragging: true,
-                    id: items[activeIndex].id,
-                  })}
-                  style={getItemStyles({
-                    id: items[activeIndex].id,
-                    index: activeIndex,
-                    isSorting: activeId !== null,
-                    isDragging: true,
-                    overIndex: -1,
-                    isDragOverlay: true,
-                  })}
-                  dragOverlay
-                />
-              ) : null}
-            </DragOverlay>,
+              dragging={isDragging}
+              activeId={activeId}
+              activeIndex={activeIndex}
+              item={items[activeIndex]}
+              getItemStyles={getItemStyles}
+              wrapperStyle={wrapperStyle}
+              handle={handle}
+              renderItem={renderItem}
+            />,
             document.body,
           )
         : null}

packages/sortable-list/src/SortableItem.tsx

@@ -4,7 +4,7 @@ import React from 'react';
 import type { AnimateLayoutChanges, NewIndexGetter } from '@dnd-kit/sortable';
 import { useSortable } from '@dnd-kit/sortable';
 
-import { Item } from './Item';
+import { Item } from './components';
 
 interface SortableItemProps {
   animateLayoutChanges?: AnimateLayoutChanges;

packages/sortable-list/src/Item/components/Action/Action.module.css → packages/sortable-list/src/components/Action/index.less

@@ -1,4 +1,4 @@
-$focused-outline-color: #4c9ffe;
+@focused-outline-color: #4c9ffe;
 
 .Action {
   display: flex;
@@ -45,6 +45,6 @@ $focused-outline-color: #4c9ffe;
   &:focus-visible {
     outline: none;
     box-shadow: 0 0 0 2px rgba(255, 255, 255, 0),
-      0 0px 0px 2px $focused-outline-color;
+      0 0px 0px 2px @focused-outline-color;
   }
 }

packages/sortable-list/src/Item/Item.tsx → packages/sortable-list/src/components/Item/index.tsx

@@ -3,7 +3,8 @@ import classNames from 'classnames';
 import type { DraggableSyntheticListeners } from '@dnd-kit/core';
 import type { Transform } from '@dnd-kit/utilities';
 
-import { Handle, Remove } from './components';
+import { Handle } from '../Handle';
+import { Remove } from '../Remove';
 
 import styles from './index.less';
 
@@ -76,6 +77,7 @@ export const Item = React.memo(
         };
       }, [dragOverlay]);
 
+      // @ts-ignore
       return renderItem ? (
         renderItem({
           dragOverlay: Boolean(dragOverlay),

packages/sortable-list/src/Item/components/Remove/Remove.tsx → packages/sortable-list/src/components/Remove/Remove.tsx

@@ -1,6 +1,7 @@
 import React from 'react';
 
-import {Action, ActionProps} from '../Action';
+import type { ActionProps } from '../Action';
+import { Action } from '../Action';
 
 export function Remove(props: ActionProps) {
   return (

packages/sortable-list/src/hooks/useActiveItem.ts

@@ -0,0 +1,17 @@
+import { useCallback, useState } from 'react';
+
+export const useActiveItem = () => {
+  const [activeId, setActiveId] = useState<string>(null);
+
+  const activateItem = useCallback((id: string) => {
+    setActiveId(id);
+  }, []);
+
+  const deactivateItem = useCallback(() => {
+    setActiveId(null);
+  }, []);
+
+  const isDragging = activeId !== null;
+
+  return { isDragging, activeId, activateItem, deactivateItem };
+};