Sirttas
71 lines
2.2 KiB
Vue
71 lines
2.2 KiB
Vue
<script setup lang="ts" generic="T">
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import {vOnClickOutside} from '@vueuse/components';
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import {useVirtualList} from '@vueuse/core';
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import {computed, ref} from 'vue';
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interface Props {
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items: T[];
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itemHeight?: number;
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}
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const props = withDefaults(defineProps<Props>(), {
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itemHeight: 24,
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});
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const modelValue = defineModel<T>();
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const isOpen = ref(false);
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const currentIndex = ref(-1);
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const {list, scrollTo, containerProps, wrapperProps} = useVirtualList(computed(() => props.items), {
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itemHeight: () => props.itemHeight,
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overscan: 3,
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});
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const moveDown = () => {
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currentIndex.value = currentIndex.value >= props.items.length - 1 ? 0 : currentIndex.value + 1;
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scrollTo(currentIndex.value);
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};
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const moveUp = () => {
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currentIndex.value = currentIndex.value <= 0 ? props.items.length - 1 : currentIndex.value - 1;
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scrollTo(currentIndex.value);
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};
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const select = (item?: T) => {
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modelValue.value = item;
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currentIndex.value = -1;
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isOpen.value = false;
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};
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const submit = () => {
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if (currentIndex.value >= 0 && currentIndex.value < props.items.length) {
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select(props.items[currentIndex.value]);
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} else if (modelValue.value === undefined && props.items.length > 0) {
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select(props.items[0]);
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}
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};
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</script>
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<template>
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<div @click="isOpen = true" v-on-click-outside="() => isOpen = false">
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<div class="fake-input" @keyup.enter="submit" @keyup.down="moveDown" @keyup.up="moveUp">
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<slot name="input" :value="modelValue" />
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</div>
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<div v-if="isOpen && items.length" class="z-20 absolute">
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<div v-bind="containerProps" class="rounded-b" style="height: 300px">
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<div v-bind="wrapperProps">
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<div v-for="s in list" :key="s.index"
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class="hover:bg-slate-700 cursor-pointer"
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:class="s.index === currentIndex ? 'bg-emerald-500' : 'bg-slate-500'"
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@click.stop="select(s.data)">
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<slot name="item" :item="s.data" />
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</div>
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</div>
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</div>
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</div>
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</div>
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</template>
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<style scoped>
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@reference "@/style.css";
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.fake-input {
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@apply flex border bg-slate-500 rounded px-1 py-0.5;
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}
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</style> |