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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,127 @@ | ||
| import { | ||
| ref, Ref, SetupContext, computed, onBeforeUpdate, | ||
| } from '@vue/composition-api'; | ||
| import { VNode } from 'vue'; | ||
| import get from 'lodash/get'; | ||
| import isArray from 'lodash/isArray'; | ||
| import { | ||
| TdSelectProps, SelectKeysType, TdOptionProps, SelectOptionGroup, SelectValue, | ||
| } from '../type'; | ||
|
|
||
| type UniOption = (TdOptionProps | SelectOptionGroup) & { | ||
| index?: number; | ||
| slots?: () => VNode; | ||
| }; | ||
|
|
||
| export default function useSelectOptions(props: TdSelectProps, context: SetupContext, keys: Ref<SelectKeysType>) { | ||
| const options = ref<UniOption[]>([]); | ||
|
|
||
| const getOptions = () => { | ||
| let dynamicIndex = 0; | ||
|
|
||
| // 解析 props 中 options 字段的配置，以此初始化 innerOptions | ||
| const innerOptions: UniOption[] = props.options.map((option) => { | ||
| const getFormatOption = (option: TdOptionProps) => { | ||
| const { value, label } = keys.value; | ||
| const res = { | ||
| ...option, | ||
| index: dynamicIndex, | ||
| label: get(option, label), | ||
| value: get(option, value), | ||
| }; | ||
| dynamicIndex += 1; | ||
| return res; | ||
| }; | ||
| if ((option as SelectOptionGroup).group && (option as SelectOptionGroup).children) { | ||
| return { | ||
| ...option, | ||
| children: (option as SelectOptionGroup).children.map((child) => getFormatOption(child)), | ||
| }; | ||
| } | ||
| return getFormatOption(option); | ||
| }); | ||
|
|
||
| // 处理 slots 中 t-option 与 t-option-group | ||
| const currentSlots = context.parent.$slots.default || []; | ||
| const optionsSlots = currentSlots.filter((item) => item.tag?.endsWith('TOption')); | ||
| const groupSlots = currentSlots.filter((item) => item.tag?.endsWith('TOptionGroup')); | ||
| if (isArray(groupSlots)) { | ||
| groupSlots.forEach((group) => { | ||
| const groupOption = { | ||
| group: (group.componentOptions.propsData as TdOptionProps)?.label, | ||
| ...group.componentOptions.propsData, | ||
| children: [] as TdOptionProps[], | ||
| }; | ||
|
|
||
| const res = group.componentOptions.children; | ||
| if (isArray(res)) { | ||
| res.forEach((child) => { | ||
| groupOption.children.push({ | ||
| // 单独处理 style 和 class 参数的透传 | ||
| class: child.data.staticClass, | ||
| style: child.data.staticStyle, | ||
| // 透传其他常规参数 | ||
| ...child.componentOptions.propsData, | ||
| slots: () => child.componentOptions.children, | ||
| index: dynamicIndex, | ||
| } as TdOptionProps); | ||
| dynamicIndex += 1; | ||
| }); | ||
| } | ||
|
|
||
| innerOptions.push(groupOption); | ||
| }); | ||
| } | ||
|
|
||
| if (isArray(optionsSlots)) { | ||
| optionsSlots.forEach((child) => { | ||
| innerOptions.push({ | ||
| // 单独处理 style 和 class 参数的透传 | ||
| class: child.data.staticClass, | ||
| style: child.data.staticStyle, | ||
| // 透传其他常规参数 | ||
| ...child.componentOptions.propsData, | ||
| slots: () => child.componentOptions.children, | ||
| index: dynamicIndex, | ||
| } as TdOptionProps); | ||
| dynamicIndex += 1; | ||
| }); | ||
| } | ||
|
|
||
| options.value = innerOptions; | ||
| }; | ||
|
|
||
| const optionsMap = computed(() => { | ||
| const res = new Map<SelectValue, TdOptionProps>(); | ||
| optionsList.value.forEach((option: TdOptionProps) => { | ||
| res.set(option.value, option); | ||
| }); | ||
| return res; | ||
| }); | ||
|
|
||
| const optionsList = computed(() => { | ||
| const res: TdOptionProps[] = []; | ||
| const getOptionsList = (options: TdOptionProps[]) => { | ||
| options.forEach((option) => { | ||
| if ((option as SelectOptionGroup).group) { | ||
| getOptionsList((option as SelectOptionGroup).children); | ||
| } else { | ||
| res.push(option); | ||
| } | ||
| }); | ||
| }; | ||
| getOptionsList(options.value); | ||
| return res; | ||
| }); | ||
|
|
||
| getOptions(); | ||
| onBeforeUpdate(() => { | ||
| getOptions(); | ||
| }); | ||
|
|
||
| return { | ||
| options, | ||
| optionsMap, | ||
| optionsList, | ||
| }; | ||
| } |
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