41 lines
1.2 KiB
TypeScript
41 lines
1.2 KiB
TypeScript
/*
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* SPDX-FileCopyrightText: syuilo and misskey-project
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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import { ref } from 'vue';
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import type { Ref, MaybeRefOrGetter } from 'vue';
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import type { MkSelectItem, OptionValue, GetMkSelectValueTypesFromDef } from '@/components/MkSelect.vue';
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type UnwrapReadonlyItems<T> = T extends readonly (infer U)[] ? U[] : T;
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/** 指定したオプション定義をもとに型を狭めたrefを生成するコンポーサブル */
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export function useMkSelect<
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const TItemsInput extends MaybeRefOrGetter<MkSelectItem[]>,
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const TItems extends TItemsInput extends MaybeRefOrGetter<infer U> ? U : never,
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TInitialValue extends OptionValue | void = void,
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TItemsValue = GetMkSelectValueTypesFromDef<UnwrapReadonlyItems<TItems>>,
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ModelType = TInitialValue extends void
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? TItemsValue
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: (TItemsValue | TInitialValue)
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>(opts: {
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items: TItemsInput;
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initialValue?: TInitialValue & (
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OptionValue extends TItemsValue
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? OptionValue
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: TItemsValue extends TInitialValue
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? unknown
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: { 'Error: Type of initialValue must include all types of items': TItemsValue }
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);
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}): {
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def: TItemsInput;
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model: Ref<ModelType>;
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} {
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const model = ref(opts.initialValue ?? null);
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return {
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def: opts.items,
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model: model as Ref<ModelType>,
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};
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}
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