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ant-design-vue/components/tour/useMergedType.ts

39 lines
1.1 KiB

import type { TourProps } from './interface';
import type { Ref } from 'vue';
import { ref, computed, watch } from 'vue';
interface Props {
defaultType?: Ref<string>;
steps?: Ref<TourProps['steps']>;
current?: Ref<number>;
defaultCurrent?: Ref<number>;
}
/**
* returns the merged type of a step or the default type.
*/
const useMergedType = ({ defaultType, steps, current, defaultCurrent }: Props) => {
const innerCurrent = ref(defaultCurrent?.value);
const mergedCurrent = computed(() => current?.value);
watch(
mergedCurrent,
val => {
innerCurrent.value = val ?? defaultCurrent?.value;
},
{ immediate: true },
);
const updateInnerCurrent = (val: number) => {
innerCurrent.value = val;
};
const innerType = computed(() => {
return typeof innerCurrent.value === 'number'
? steps && steps.value?.[innerCurrent.value]?.type
: defaultType?.value;
});
const currentMergedType = computed(() => innerType.value ?? defaultType?.value);
return { currentMergedType, updateInnerCurrent };
};
export default useMergedType;