feat(comp:select): add support for dnd sortable

packages/components/select/demo/DndSortable.md

@@ -0,0 +1,13 @@
+---
+title:
+  zh: 拖拽排序
+  en: Dnd sortable
+order: 23
+---
+## zh
+
+通过 `dndSortable` 配置拖拽排序。
+
+## en
+
+enable drag sorting by `dndSortable` prop.

packages/components/select/demo/DndSortable.vue

@@ -0,0 +1,43 @@
+<template>
+  <IxSelect
+    :selectedKeys="value"
+    :dataSource="dataSource"
+    :onOptionClick="onOptionClick"
+    :onDndSortChange="onDndSortChange"
+    multiple
+    :dndSortable="{
+      dragHandle: true,
+    }"
+  >
+  </IxSelect>
+</template>
+<script setup lang="ts">
+import { ref } from 'vue'
+
+import { SelectData } from '@idux/components/select'
+
+const dataSource = ref<SelectData[]>([])
+
+const tempData: SelectData[] = []
+for (let index = 0; index < 20; index++) {
+  const prefix = index > 9 ? 'B' : 'A'
+  tempData.push({ key: index, label: prefix + index, disabled: index % 3 === 0 })
+}
+dataSource.value = tempData
+
+const value = ref([1])
+
+const onOptionClick = (option: SelectData) => {
+  const index = value.value.findIndex(key => key === option.key)
+  if (index > -1) {
+    value.value.splice(index, 1)
+  } else {
+    value.value.push(option.key as number)
+  }
+}
+
+const onDndSortChange = (newOptions: SelectData[]) => {
+  console.log('onDndSortChange', newOptions)
+  dataSource.value = newOptions
+}
+</script>

packages/components/select/docs/Api.zh.md

@@ -18,6 +18,7 @@
 | `customAdditional` | 自定义下拉选项的额外属性 | `SelectCustomAdditional` | - | - | 例如 `class`, 或者原生事件 |
 | `dataSource` | 选项数据源 | `SelectData[]` | - | - | 优先级高于 `default` 插槽, 性能会更好 |
 | `disabled` | 是否禁用状态 | `boolean` | `false` | - | 使用 `control` 时，此配置无效 |
+| `dndSortable` | 拖拽排序配置 | `boolean` | `SelectDndSortable` | `false` | - |
 | `empty` | 自定义当下拉列表为空时显示的内容 | `'default' \| 'simple' \| EmptyProps` | `'simple'` | - | - |
 | `getKey` | 获取数据的唯一标识 | `string \| (data: SelectData) => VKey` | `key` | ✅ | 为了兼容之前的版本，默认值也会支持 `value` |
 | `labelKey` | 选项 label 的 key | `string` | `label` | ✅ | 仅在使用 `dataSource` 时有效 |
@@ -45,6 +46,21 @@
 | `onScroll` | 滚动事件 | `(evt: Event) => void` | - | - | - |
 | `onScrolledChange` | 滚动的位置发生变化 | `(startIndex: number, endIndex: number, visibleData: SelectData[]) => void` | - | - | 仅 `virtual` 模式下可用 |
 | `onScrolledBottom` | 滚动到底部时触发 | `() => void` | - | - | 仅 `virtual` 模式下可用 |
+| `onScrolledChange` | 滚动的位置发生变化 | `(startIndex: number, endIndex: number, visibleData: SelectData[]) => void` | - | - | 仅 `virtual` 模式下可用 |
+| `onDndSortReorder` | 数据重排序之后的回调 | `(reorderInfo: DndSortableReorderInfo) => void` | - | - | - |
+| `onDndSortChange` | 数据排序改变之后的回调 | `(newData: SelectData[], oldData: SelectData[]) => void` | - | - | - |
+
+```ts
+export interface DndSortableReorderInfo {
+  sourceIndex: number
+  targetIndex: number
+  sourceKey: VKey
+  targetKey: VKey
+  sourceData: SelectData
+  targetData: SelectData
+  operation: 'insertBefore' | 'insertAfter' | 'insertChild'
+}
+```
 
 ```ts
 export type SelectData = SelectOptionProps | SelectOptionGroupProps

packages/components/select/src/Select.tsx

@@ -199,6 +199,16 @@
       return spinProps ? <IxSpin {...spinProps}>{children}</IxSpin> : children
     }
 
+    const handleContentMouseDown = (evt: MouseEvent) => {
+      if (evt.target instanceof HTMLInputElement) {
+        return
+      }
+
+      setTimeout(() => {
+        focus()
+      })
+    }
+
     const renderContent: ControlTriggerSlots['overlay'] = () => {
       const children = [renderLoading(<Panel ref={panelRef} v-slots={slots} {...panelProps.value} />)]
       const { searchable, overlayRender } = props
@@ -231,7 +241,7 @@
         )
       }
 
-      return [<div>{overlayRender ? overlayRender(children) : children}</div>]
+      return [<div onMousedown={handleContentMouseDown}>{overlayRender ? overlayRender(children) : children}</div>]
     }
 
     return () => {

packages/components/select/src/composables/useOptions.ts

@@ -7,7 +7,7 @@
 
 /* eslint-disable @typescript-eslint/no-explicit-any */
 
-import type { SelectData, SelectProps, SelectSearchFn } from '../types'
+import type { FlattenedOption, SelectData, SelectProps, SelectSearchFn } from '../types'
 import type { ComputedRef, Ref, Slots, VNode } from 'vue'
 
 import { computed } from 'vue'
@@ -18,17 +18,9 @@ import { type VKey, flattenNode } from '@idux/cdk/utils'
 
 import { GetKeyFn } from './useGetOptionKey'
 import { optionGroupKey, optionKey } from '../option'
+import { flattenOptions } from '../utils/flattenOptions'
 import { generateOption } from '../utils/generateOption'
 
-export interface FlattenedOption {
-  key: VKey
-  label: string
-  disabled?: boolean
-  rawData: SelectData
-  type: 'group' | 'item'
-  parentKey?: VKey
-}
-
 export function useConvertedOptions(props: SelectProps, slots: Slots): ComputedRef<SelectData[]> {
   return computed(() => {
     return props.dataSource ?? convertOptions(slots.default?.())
@@ -133,48 +125,6 @@ function filterOptions(
   return filteredOptions
 }
 
-function flattenOptions(options: SelectData[] | undefined, childrenKey: string, getKeyFn: GetKeyFn, labelKey: string) {
-  const mergedOptions: FlattenedOption[] = []
-  const appendOption = (item: SelectData, index: number | undefined, parentKey?: VKey) => {
-    const parsedOption = parseOption(item, item => getKeyFn(item) ?? index, childrenKey, labelKey, parentKey)
-    mergedOptions.push(parsedOption)
-
-    return parsedOption.key
-  }
-
-  options?.forEach((item, index) => {
-    const children = item[childrenKey] as SelectData[]
-
-    const optionKey = appendOption(item, index)
-
-    if (children && children.length > 0) {
-      children.forEach(child => {
-        appendOption(child, undefined, optionKey)
-      })
-    }
-  })
-
-  return mergedOptions
-}
-
-function parseOption(
-  option: SelectData,
-  getKey: GetKeyFn,
-  childrenKey: string,
-  labelKey: string,
-  parentKey?: VKey,
-): FlattenedOption {
-  const children = option[childrenKey] as SelectData[] | undefined
-  return {
-    key: getKey(option),
-    parentKey,
-    label: option[labelKey],
-    disabled: !!option.disabled,
-    type: children && children.length > 0 ? 'group' : 'item',
-    rawData: option,
-  }
-}
-
 function useSearchFn(props: SelectProps, mergedLabelKey: ComputedRef<string>) {
   return computed(() => {
     const searchFn = props.searchFn

packages/components/select/src/composables/usePanelProps.ts

@@ -24,6 +24,7 @@ export function usePanelProps(
     childrenKey: props.childrenKey,
     customAdditional: props.customAdditional,
     empty: props.empty,
+    dndSortable: props.dndSortable,
     getKey: props.getKey,
     labelKey: props.labelKey,
     multiple: props.multiple,
@@ -36,6 +37,8 @@ export function usePanelProps(
     onScroll: props.onScroll,
     onScrolledChange: props.onScrolledChange,
     onScrolledBottom: props.onScrolledBottom,
+    onDndSortReorder: props.onDndSortReorder,
+    onDndSortChange: props.onDndSortChange,
     _virtualScrollHeight: props.overlayHeight,
   }))
 }

packages/components/select/src/panel/Option.tsx

@@ -9,8 +9,10 @@ import { computed, defineComponent, inject } from 'vue'
 
 import { isNil, toString } from 'lodash-es'
 
+import { CdkDndSortableHandle, CdkDndSortableItem } from '@idux/cdk/dnd'
 import { callEmit } from '@idux/cdk/utils'
 import { IxCheckbox } from '@idux/components/checkbox'
+import { IxIcon } from '@idux/components/icon'
 
 import { selectPanelContext } from '../token'
 import { optionProps } from '../types'
@@ -22,6 +24,7 @@ export default defineComponent({
     const {
       props: selectPanelProps,
       mergedPrefixCls,
+      mergedDndSortable,
       selectedKeys,
       selectedLimit,
       selectedLimitTitle,
@@ -41,6 +44,7 @@ export default defineComponent({
       return {
         [prefixCls]: true,
         [`${prefixCls}-active`]: isActive.value,
+        [`${prefixCls}-with-drag-handle`]: mergedDndSortable.value && mergedDndSortable.value.handle,
         [`${prefixCls}-disabled`]: isDisabled.value,
         [`${prefixCls}-grouped`]: !isNil(parentKey),
         [`${prefixCls}-selected`]: isSelected.value,
@@ -67,19 +71,31 @@ export default defineComponent({
         ? selectPanelProps.customAdditional({ data: rawData!, index: props.index! })
         : undefined
 
-      return (
-        <div
-          class={classes.value}
-          title={title}
-          onMouseenter={disabled ? undefined : handleMouseEnter}
-          onClick={disabled ? undefined : handleClick}
-          aria-label={_label}
-          aria-selected={selected}
-          {...customAdditional}
-        >
-          {multiple && <IxCheckbox checked={selected} disabled={disabled} />}
-          <span class={`${prefixCls}-label`}>{renderOptionLabel(slots, rawData!, _label)}</span>
-        </div>
+      const optionContentNodes = [
+        multiple && <IxCheckbox checked={selected} disabled={disabled} />,
+        <span class={`${prefixCls}-label`}>{renderOptionLabel(slots, rawData!, _label)}</span>,
+      ]
+      const optionsProps = {
+        class: classes.value,
+        title,
+        onMouseenter: disabled ? undefined : handleMouseEnter,
+        onClick: disabled ? undefined : handleClick,
+        'aria-label': _label,
+        'aria-selected': selected,
+        ...customAdditional,
+      }
+
+      return mergedDndSortable.value ? (
+        <CdkDndSortableItem itemKey={props.optionKey} canDrag={!isDisabled.value} {...optionsProps}>
+          {mergedDndSortable.value.dragHandle ? (
+            <CdkDndSortableHandle class={`${prefixCls}-drag-handle`}>
+              {!isDisabled.value && <IxIcon name={mergedDndSortable.value.dragHandle} />}
+            </CdkDndSortableHandle>
+          ) : undefined}
+          {optionContentNodes}
+        </CdkDndSortableItem>
+      ) : (
+        <div {...optionsProps}>{optionContentNodes}</div>
       )
     }
   },