audiobookshelf/client/components/ui/MultiSelect.vue

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Vue
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<template>
<div class="w-full">
<p class="px-1 text-sm font-semibold">{{ label }}</p>
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<div ref="wrapper" class="relative">
<form @submit.prevent="submitForm">
<div ref="inputWrapper" style="min-height: 40px" class="flex-wrap relative w-full shadow-sm flex items-center bg-primary border border-gray-600 rounded-md px-2 py-1 cursor-text" @click.stop.prevent="clickWrapper" @mouseup.stop.prevent @mousedown.prevent>
<div v-for="item in selected" :key="item" class="rounded-full px-2 py-1 ma-0.5 text-xs bg-bg flex flex-nowrap whitespace-nowrap items-center relative">
<div class="w-full h-full rounded-full absolute top-0 left-0 opacity-0 hover:opacity-100 px-1 bg-bg bg-opacity-75 flex items-center justify-end cursor-pointer">
<span class="material-icons text-white hover:text-error" style="font-size: 1.1rem" @click.stop="removeItem(item)">close</span>
</div>
{{ item }}
</div>
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<input ref="input" v-model="textInput" style="min-width: 40px; width: 40px" class="h-full bg-primary focus:outline-none px-1" @keydown="keydownInput" @focus="inputFocus" @blur="inputBlur" />
</div>
</form>
<ul ref="menu" v-show="showMenu" class="absolute z-50 mt-1 w-full bg-bg border border-black-200 shadow-lg max-h-56 rounded-md py-1 text-base ring-1 ring-black ring-opacity-5 overflow-auto focus:outline-none sm:text-sm" role="listbox" aria-labelledby="listbox-label">
<template v-for="item in itemsToShow">
<li :key="item" class="text-gray-50 select-none relative py-2 pr-9 cursor-pointer hover:bg-black-400" role="option" @click="clickedOption($event, item)" @mouseup.stop.prevent @mousedown.prevent>
<div class="flex items-center">
<span class="font-normal ml-3 block truncate">{{ item }}</span>
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</div>
<span v-if="selected.includes(item)" class="text-yellow-400 absolute inset-y-0 right-0 flex items-center pr-4">
<span class="material-icons text-xl">checkmark</span>
</span>
</li>
</template>
<li v-if="!itemsToShow.length" class="text-gray-50 select-none relative py-2 pr-9" role="option">
<div class="flex items-center justify-center">
<span class="font-normal">No items</span>
</div>
</li>
</ul>
</div>
</div>
</template>
<script>
export default {
props: {
value: {
type: Array,
default: () => []
},
items: {
type: Array,
default: () => []
},
label: String
},
data() {
return {
textInput: null,
currentSearch: null,
typingTimeout: null,
isFocused: false,
menu: null
}
},
computed: {
selected: {
get() {
return this.value
},
set(val) {
this.$emit('input', val)
}
},
showMenu() {
return this.isFocused
},
itemsToShow() {
if (!this.currentSearch || !this.textInput) {
return this.items
}
return this.items.filter((i) => {
var iValue = String(i).toLowerCase()
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return iValue.includes(this.currentSearch.toLowerCase())
})
}
},
methods: {
keydownInput() {
clearTimeout(this.typingTimeout)
this.typingTimeout = setTimeout(() => {
this.currentSearch = this.textInput
}, 100)
this.setInputWidth()
},
setInputWidth() {
setTimeout(() => {
var value = this.$refs.input.value
var len = value.length * 7 + 24
this.$refs.input.style.width = len + 'px'
this.recalcMenuPos()
}, 50)
},
recalcMenuPos() {
if (!this.menu) return
var boundingBox = this.$refs.inputWrapper.getBoundingClientRect()
this.menu.style.top = boundingBox.y + boundingBox.height - 4 + 'px'
this.menu.style.left = boundingBox.x + 'px'
this.menu.style.width = boundingBox.width + 'px'
},
unmountMountMenu() {
if (!this.$refs.menu) return
this.menu = this.$refs.menu
var boundingBox = this.$refs.inputWrapper.getBoundingClientRect()
this.menu.remove()
document.body.appendChild(this.menu)
this.menu.style.top = boundingBox.y + boundingBox.height - 4 + 'px'
this.menu.style.left = boundingBox.x + 'px'
this.menu.style.width = boundingBox.width + 'px'
},
inputFocus() {
if (!this.menu) {
this.unmountMountMenu()
}
this.isFocused = true
this.recalcMenuPos()
},
inputBlur() {
setTimeout(() => {
if (document.activeElement === this.$refs.input) {
return
}
this.isFocused = false
if (this.textInput) this.submitForm()
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}, 50)
},
focus() {
if (this.$refs.input) this.$refs.input.focus()
},
blur() {
if (this.$refs.input) this.$refs.input.blur()
},
clickedOption(e, itemValue) {
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if (e) {
e.stopPropagation()
e.preventDefault()
}
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if (this.$refs.input) this.$refs.input.focus()
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var newSelected = null
if (this.selected.includes(itemValue)) {
newSelected = this.selected.filter((s) => s !== itemValue)
this.$emit('removedItem', itemValue)
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} else {
newSelected = this.selected.concat([itemValue])
}
this.textInput = null
this.currentSearch = null
this.$emit('input', newSelected)
this.$nextTick(() => {
this.recalcMenuPos()
})
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},
clickWrapper() {
if (this.showMenu) {
return this.blur()
}
this.focus()
},
removeItem(item) {
var remaining = this.selected.filter((i) => i !== item)
this.$emit('input', remaining)
this.$emit('removedItem', item)
this.$nextTick(() => {
this.recalcMenuPos()
})
},
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insertNewItem(item) {
this.selected.push(item)
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this.$emit('input', this.selected)
this.$emit('newItem', item)
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this.textInput = null
this.currentSearch = null
this.$nextTick(() => {
this.blur()
})
},
submitForm() {
if (!this.textInput) return
var cleaned = this.textInput.trim()
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var matchesItem = this.items.find((i) => {
return i === cleaned
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})
if (matchesItem) {
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this.clickedOption(null, matchesItem)
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} else {
this.insertNewItem(this.textInput)
}
}
},
mounted() {}
}
</script>