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Add Vue empty states example
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@thecrypticace
thecrypticace committed Nov 17, 2023
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156 changes: 156 additions & 0 deletions packages/playground-vue/src/components/combobox/combobox-virtual-with-empty-states.vue
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<script setup lang="ts">
import { computed, ref } from 'vue'
import { Combobox, ComboboxLabel, ComboboxInput, ComboboxOption, ComboboxOptions, ComboboxButton } from '@headlessui/vue'
type Option = {
name: string
disabled: boolean
empty?: boolean
}
let list = ref([
{name: 'Alice', disabled: false},
{name: 'Bob', disabled: false},
{name: 'Charlie', disabled: false},
{name: 'David', disabled: false},
{name: 'Eve', disabled: false},
{name: 'Fred', disabled: false},
{name: 'George', disabled: false},
{name: 'Helen', disabled: false},
{name: 'Iris', disabled: false},
{name: 'John', disabled: false},
{name: 'Kate', disabled: false},
{name: 'Linda', disabled: false},
{name: 'Michael', disabled: false},
{name: 'Nancy', disabled: false},
{name: 'Oscar', disabled: true},
{name: 'Peter', disabled: false},
{name: 'Quentin', disabled: false},
{name: 'Robert', disabled: false},
{name: 'Sarah', disabled: false},
{name: 'Thomas', disabled: false},
{name: 'Ursula', disabled: false},
{name: 'Victor', disabled: false},
{name: 'Wendy', disabled: false},
{name: 'Xavier', disabled: false},
{name: 'Yvonne', disabled: false},
{name: 'Zachary', disabled: false},
])
let emptyOption = { name: 'No results', disabled: true, empty: true }
let query = ref('')
let selectedPerson = ref<Option | null>(list[0])
let optionsRef = ref<HTMLUListElement | null>(null)
let filtered = computed(() => {
return query.value === ''
? list.value
: list.value.filter((item) => item.name.toLowerCase().includes(query.value.toLowerCase()))
})
function addPerson() {
let person = { name: query.value, disabled: false }
list.value.push(person)
selectedPerson.value = person
}
</script>
<template>
<div class="mx-auto max-w-fit">
<div class="py-8 font-mono text-xs">Selected person: {{ selectedPerson?.name ?? "N/A" }}</div>
<Combobox
:virtual="{
options: filtered.length > 0 ? filtered : [emptyOption],
disabled: (option) => option.disabled || option.empty,
}"
:value="selectedPerson"
nullable
@change="(value) => {
selectedPerson = value
query = ''
}"
as="div"
>
<ComboboxLabel class="block text-sm font-medium leading-5 text-gray-700">
Person
</ComboboxLabel>

<div class="relative">
<span class="relative inline-flex flex-row overflow-hidden rounded-md border shadow-sm">
<ComboboxInput
@change="(e) => query = e.target.value"
:displayValue="(option: Option | null) => option?.name ?? ''"
class="border-none px-3 py-1 outline-none"
/>
<ComboboxButton as="button">
<span class="pointer-events-none flex items-center px-2">
<svg
class="h-5 w-5 text-gray-400"
viewBox="0 0 20 20"
fill="none"
stroke="currentColor"
>
<path
d="M7 7l3-3 3 3m0 6l-3 3-3-3"
strokeWidth="1.5"
strokeLinecap="round"
strokeLinejoin="round"
/>
</svg>
</span>
</ComboboxButton>
</span>

<div class="absolute mt-1 w-full rounded-md bg-white shadow-lg">
<ComboboxOptions
:ref="optionsRef"
:class="[
'shadow-xs max-h-60 rounded-md py-1 text-base leading-6 focus:outline-none sm:text-sm sm:leading-5',
filtered.length === 0 ? 'overflow-hidden' : 'overflow-auto'
]"
v-slot="{ option }"
>
<template v-if="option.empty">
<ComboboxOption
:value="option"
class="relative w-full cursor-default select-none py-2 px-3 focus:outline-none text-center"
disabled
>
<div class="grid grid-cols-1 grid-rows-1 h-full relative">
<div class="absolute inset-0">
<svg fill="none" viewBox="0 0 24 24" stroke-width="0.5" stroke="currentColor" class="text-gray-500/5 -translate-y-1/4">
<path stroke-linecap="round" stroke-linejoin="round" d="M9.813 15.904L9 18.75l-.813-2.846a4.5 4.5 0 00-3.09-3.09L2.25 12l2.846-.813a4.5 4.5 0 003.09-3.09L9 5.25l.813 2.846a4.5 4.5 0 003.09 3.09L15.75 12l-2.846.813a4.5 4.5 0 00-3.09 3.09zM18.259 8.715L18 9.75l-.259-1.035a3.375 3.375 0 00-2.455-2.456L14.25 6l1.036-.259a3.375 3.375 0 002.455-2.456L18 2.25l.259 1.035a3.375 3.375 0 002.456 2.456L21.75 6l-1.035.259a3.375 3.375 0 00-2.456 2.456zM16.894 20.567L16.5 21.75l-.394-1.183a2.25 2.25 0 00-1.423-1.423L13.5 18.75l1.183-.394a2.25 2.25 0 001.423-1.423l.394-1.183.394 1.183a2.25 2.25 0 001.423 1.423l1.183.394-1.183.394a2.25 2.25 0 00-1.423 1.423z" />
</svg>
</div>
<div class="z-20 col-start-1 row-start-1 col-span-full row-span-full p-8 flex flex-col justify-center items-center">
<h3 class="mx-2 text-xl mb-4 text-gray-400 font-semibold">No people found</h3>
</div>
</div>
</ComboboxOption>
</template>
<template v-else>
<ComboboxOption
as="template"
v-slot="{ active }"
:disabled="option.disabled"
:value="option"
>
<div
:class="[
'relative w-full cursor-default select-none py-2 pl-3 pr-9 focus:outline-none',
active ? 'bg-indigo-600 text-white' : 'text-gray-900'
]"
>
<span class='block truncate'>
{{ option.name }}
</span>
</div>
</ComboboxOption>
</template>
</ComboboxOptions>
</div>
</div>
</Combobox>
</div>
</template>

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Successfully deployed to the following URLs:

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