ant-design-vue/components/vc-cascader/hooks/useDisplayValues.ts

64 lines
1.9 KiB
TypeScript

import { toPathOptions } from '../utils/treeUtil';
import type {
DefaultOptionType,
SingleValueType,
BaseCascaderProps,
InternalFieldNames,
} from '../Cascader';
import { toPathKey } from '../utils/commonUtil';
import type { Ref, VNode } from 'vue';
import { computed } from 'vue';
import { isValidElement } from '../../_util/props-util';
import { cloneElement } from '../../_util/vnode';
export default (
rawValues: Ref<SingleValueType[]>,
options: Ref<DefaultOptionType[]>,
fieldNames: Ref<InternalFieldNames>,
multiple: Ref<boolean>,
displayRender: Ref<BaseCascaderProps['displayRender']>,
) => {
return computed(() => {
const mergedDisplayRender =
displayRender.value ||
// Default displayRender
(({ labels }) => {
const mergedLabels = multiple.value ? labels.slice(-1) : labels;
const SPLIT = ' / ';
if (mergedLabels.every(label => ['string', 'number'].includes(typeof label))) {
return mergedLabels.join(SPLIT);
}
// If exist non-string value, use VueNode instead
return mergedLabels.reduce((list, label, index) => {
const keyedLabel = isValidElement(label)
? cloneElement(label as unknown as VNode, { key: index })
: label;
if (index === 0) {
return [keyedLabel];
}
return [...list, SPLIT, keyedLabel];
}, []);
});
return rawValues.value.map(valueCells => {
const valueOptions = toPathOptions(valueCells, options.value, fieldNames.value);
const label = mergedDisplayRender({
labels: valueOptions.map(({ option, value }) => option?.[fieldNames.value.label] ?? value),
selectedOptions: valueOptions.map(({ option }) => option),
});
const value = toPathKey(valueCells);
return {
label,
value,
key: value,
valueCells,
};
});
});
};