88 lines
1.3 KiB
Vue
88 lines
1.3 KiB
Vue
<template>
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<div class="items">
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<div
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class="item"
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:class="{ 'is-selected': index === selectedIndex }"
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v-for="(item, index) in items"
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:key="index"
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>
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{{ item }}
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</div>
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</div>
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</template>
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<script>
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export default {
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props: {
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items: {
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type: Array,
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default: () => [],
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},
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},
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data() {
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return {
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selectedIndex: 0,
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}
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},
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watch: {
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items() {
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this.selectedIndex = 0
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},
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},
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methods: {
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onKeyDown({ event }) {
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if (event.key === 'ArrowUp') {
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this.upHandler()
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return true
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}
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if (event.key === 'ArrowDown') {
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this.downHandler()
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return true
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}
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if (event.key === 'Enter') {
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this.enterHandler()
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return true
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}
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return false
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},
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upHandler() {
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this.selectedIndex = ((this.selectedIndex + this.items.length) - 1) % this.items.length
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},
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downHandler() {
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this.selectedIndex = (this.selectedIndex + 1) % this.items.length
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},
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enterHandler() {
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const item = this.items[this.selectedIndex]
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if (item) {
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console.log('select', item)
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}
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},
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},
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}
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</script>
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<style lang="scss" scoped>
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.items {
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position: relative;
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}
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.item {
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background: white;
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color: black;
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padding: 0.5rem;
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&.is-selected {
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background: #ccc;
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}
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}
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</style>
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