mirror of
https://github.com/tenrok/vue-select.git
synced 2026-05-17 02:29:37 +03:00
Jeff Sagal
1072 lines
28 KiB
Vue
1072 lines
28 KiB
Vue
<style lang="scss">
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@import '../scss/vue-select.scss';
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</style>
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<template>
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<div :dir="dir" class="v-select" :class="stateClasses">
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<div ref="toggle" @mousedown.prevent="toggleDropdown" class="vs__dropdown-toggle">
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<div class="vs__selected-options" ref="selectedOptions">
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<slot v-for="option in selectedValue"
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name="selected-option-container"
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:option="normalizeOptionForSlot(option)"
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:deselect="deselect"
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:multiple="multiple"
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:disabled="disabled">
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<span :key="getOptionKey(option)" class="vs__selected">
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<slot name="selected-option" v-bind="normalizeOptionForSlot(option)">
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{{ getOptionLabel(option) }}
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</slot>
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<button v-if="multiple" :disabled="disabled" @click="deselect(option)" type="button" class="vs__deselect" aria-label="Deselect option">
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<component :is="childComponents.Deselect" />
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</button>
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</span>
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</slot>
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<slot name="search" v-bind="scope.search">
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<input class="vs__search" v-bind="scope.search.attributes" v-on="scope.search.events">
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</slot>
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</div>
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<div class="vs__actions">
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<button
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v-show="showClearButton"
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:disabled="disabled"
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@click="clearSelection"
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type="button"
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class="vs__clear"
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title="Clear selection"
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>
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<component :is="childComponents.Deselect" />
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</button>
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<slot name="open-indicator" v-bind="scope.openIndicator">
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<component :is="childComponents.OpenIndicator" v-if="!noDrop" v-bind="scope.openIndicator.attributes"/>
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</slot>
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<slot name="spinner" v-bind="scope.spinner">
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<div class="vs__spinner" v-show="mutableLoading">Loading...</div>
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</slot>
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</div>
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</div>
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<transition :name="transition">
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<ul ref="dropdownMenu" v-if="dropdownOpen" class="vs__dropdown-menu" role="listbox" @mousedown="onMousedown" @mouseup="onMouseUp">
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<li
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role="option"
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v-for="(option, index) in filteredOptions"
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:key="getOptionKey(option)"
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class="vs__dropdown-option"
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:class="{ 'vs__dropdown-option--selected': isOptionSelected(option), 'vs__dropdown-option--highlight': index === typeAheadPointer }"
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@mouseover="typeAheadPointer = index"
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@mousedown.prevent.stop="select(option)"
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>
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<slot name="option" v-bind="normalizeOptionForSlot(option)">
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{{ getOptionLabel(option) }}
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</slot>
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</li>
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<li v-if="!filteredOptions.length" class="vs__no-options" @mousedown.stop="">
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<slot name="no-options">Sorry, no matching options.</slot>
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</li>
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</ul>
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</transition>
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</div>
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</template>
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<script type="text/babel">
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import pointerScroll from '../mixins/pointerScroll'
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import typeAheadPointer from '../mixins/typeAheadPointer'
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import ajax from '../mixins/ajax'
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import childComponents from './childComponents';
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export default {
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components: {...childComponents},
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mixins: [pointerScroll, typeAheadPointer, ajax],
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props: {
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/**
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* Contains the currently selected value. Very similar to a
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* `value` attribute on an <input>. You can listen for changes
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* using 'change' event using v-on
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* @type {Object||String||null}
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*/
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value: {},
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/**
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* An object with any custom components that you'd like to overwrite
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* the default implementation of in your app. The keys in this object
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* will be merged with the defaults.
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* @see https://vue-select.org/guide/components.html
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* @type {Function}
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*/
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components: {
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type: Object,
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default: () => ({}),
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},
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/**
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* An array of strings or objects to be used as dropdown choices.
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* If you are using an array of objects, vue-select will look for
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* a `label` key (ex. [{label: 'This is Foo', value: 'foo'}]). A
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* custom label key can be set with the `label` prop.
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* @type {Array}
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*/
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options: {
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type: Array,
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default() {
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return []
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},
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},
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/**
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* Disable the entire component.
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* @type {Boolean}
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*/
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disabled: {
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type: Boolean,
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default: false
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},
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/**
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* Can the user clear the selected property.
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* @type {Boolean}
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*/
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clearable: {
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type: Boolean,
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default: true
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},
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/**
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* Enable/disable filtering the options.
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* @type {Boolean}
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*/
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searchable: {
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type: Boolean,
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default: true
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},
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/**
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* Equivalent to the `multiple` attribute on a `<select>` input.
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* @type {Boolean}
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*/
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multiple: {
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type: Boolean,
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default: false
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},
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/**
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* Equivalent to the `placeholder` attribute on an `<input>`.
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* @type {String}
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*/
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placeholder: {
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type: String,
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default: ''
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},
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/**
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* Sets a Vue transition property on the `.vs__dropdown-menu`.
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* @type {String}
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*/
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transition: {
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type: String,
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default: 'vs__fade'
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},
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/**
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* Enables/disables clearing the search text when an option is selected.
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* @type {Boolean}
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*/
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clearSearchOnSelect: {
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type: Boolean,
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default: true
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},
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/**
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* Close a dropdown when an option is chosen. Set to false to keep the dropdown
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* open (useful when combined with multi-select, for example)
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* @type {Boolean}
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*/
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closeOnSelect: {
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type: Boolean,
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default: true
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},
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/**
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* Tells vue-select what key to use when generating option
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* labels when each `option` is an object.
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* @type {String}
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*/
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label: {
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type: String,
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default: 'label'
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},
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/**
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* Value of the 'autocomplete' field of the input
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* element.
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* @type {String}
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*/
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autocomplete: {
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type: String,
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default: 'off'
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},
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/**
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* When working with objects, the reduce
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* prop allows you to transform a given
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* object to only the information you
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* want passed to a v-model binding
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* or @input event.
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*/
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reduce: {
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type: Function,
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default: option => option,
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},
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/**
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* Callback to generate the label text. If {option}
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* is an object, returns option[this.label] by default.
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*
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* Label text is used for filtering comparison and
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* displaying. If you only need to adjust the
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* display, you should use the `option` and
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* `selected-option` slots.
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*
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* @type {Function}
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* @param {Object || String} option
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* @return {String}
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*/
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getOptionLabel: {
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type: Function,
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default(option) {
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if (typeof option === 'object') {
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if (!option.hasOwnProperty(this.label)) {
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return console.warn(
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`[vue-select warn]: Label key "option.${this.label}" does not` +
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` exist in options object ${JSON.stringify(option)}.\n` +
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'https://vue-select.org/api/props.html#getoptionlabel'
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)
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}
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return option[this.label]
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}
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return option;
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}
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},
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/**
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* Callback to get an option key. If {option}
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* is an object and has an {id}, returns {option.id}
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* by default, otherwise tries to serialize {option}
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* to JSON.
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*
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* The key must be unique for an option.
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*
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* @type {Function}
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* @param {Object || String} option
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* @return {String}
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*/
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getOptionKey: {
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type: Function,
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default(option) {
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if (typeof option === 'object' && option.id) {
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return option.id
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} else {
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try {
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return JSON.stringify(option)
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} catch(e) {
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return console.warn(
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`[vue-select warn]: Could not stringify option ` +
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`to generate unique key. Please provide'getOptionKey' prop ` +
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`to return a unique key for each option.\n` +
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'https://vue-select.org/api/props.html#getoptionkey'
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)
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return null
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}
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}
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}
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},
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/**
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* Select the current value if selectOnTab is enabled
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*/
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onTab: {
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type: Function,
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default: function () {
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if (this.selectOnTab) {
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this.typeAheadSelect();
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}
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},
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},
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/**
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* Enable/disable creating options from searchEl.
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* @type {Boolean}
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*/
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taggable: {
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type: Boolean,
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default: false
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},
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/**
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* Set the tabindex for the input field.
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* @type {Number}
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*/
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tabindex: {
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type: Number,
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default: null
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},
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/**
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* When true, newly created tags will be added to
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* the options list.
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* @type {Boolean}
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*/
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pushTags: {
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type: Boolean,
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default: false
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},
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/**
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* When true, existing options will be filtered
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* by the search text. Should not be used in conjunction
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* with taggable.
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* @type {Boolean}
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*/
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filterable: {
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type: Boolean,
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default: true
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},
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/**
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* Callback to determine if the provided option should
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* match the current search text. Used to determine
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* if the option should be displayed.
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* @type {Function}
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* @param {Object || String} option
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* @param {String} label
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* @param {String} search
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* @return {Boolean}
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*/
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filterBy: {
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type: Function,
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default(option, label, search) {
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return (label || '').toLowerCase().indexOf(search.toLowerCase()) > -1
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}
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},
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/**
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* Callback to filter results when search text
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* is provided. Default implementation loops
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* each option, and returns the result of
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* this.filterBy.
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* @type {Function}
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* @param {Array} list of options
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* @param {String} search text
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* @param {Object} vSelect instance
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* @return {Boolean}
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*/
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filter: {
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"type": Function,
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default(options, search) {
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return options.filter((option) => {
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let label = this.getOptionLabel(option)
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if (typeof label === 'number') {
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label = label.toString()
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}
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return this.filterBy(option, label, search)
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});
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}
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},
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/**
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* User defined function for adding Options
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* @type {Function}
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*/
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createOption: {
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type: Function,
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default(newOption) {
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if (typeof this.optionList[0] === 'object') {
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newOption = {[this.label]: newOption}
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}
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this.$emit('option:created', newOption)
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return newOption
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}
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},
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/**
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* When false, updating the options will not reset the select value
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* @type {Boolean}
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*/
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resetOnOptionsChange: {
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type: Boolean,
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default: false
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},
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/**
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* Disable the dropdown entirely.
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* @type {Boolean}
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*/
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noDrop: {
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type: Boolean,
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default: false
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},
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/**
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* Sets the id of the input element.
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* @type {String}
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* @default {null}
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*/
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inputId: {
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type: String
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},
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/**
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* Sets RTL support. Accepts 'ltr', 'rtl', 'auto'.
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* @see https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/dir
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* @type {String}
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* @default 'auto'
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*/
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dir: {
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type: String,
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default: 'auto'
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},
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/**
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* When true, hitting the 'tab' key will select the current select value
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* @type {Boolean}
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*/
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selectOnTab: {
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type: Boolean,
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default: false
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},
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/**
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* Query Selector used to find the search input
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* when the 'search' scoped slot is used.
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*
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* Must be a valid CSS selector string.
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*
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* @see https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelector
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* @type {String}
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*/
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searchInputQuerySelector: {
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type: String,
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default: '[type=search]'
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}
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},
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data() {
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return {
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search: '',
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open: false,
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pushedTags: [],
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_value: [] // Internal value managed by Vue Select if no `value` prop is passed
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}
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},
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watch: {
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/**
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* Maybe reset the value
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* when options change.
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* Make sure selected option
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* is correct.
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* @return {[type]} [description]
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*/
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options(val) {
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if (!this.taggable && this.resetOnOptionsChange) {
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this.clearSelection()
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}
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if (this.value && this.isTrackingValues) {
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this.setInternalValueFromOptions(this.value)
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}
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},
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/**
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* Make sure to update internal
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* value if prop changes outside
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*/
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value(val) {
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if (this.isTrackingValues) {
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this.setInternalValueFromOptions(val)
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}
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},
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/**
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* Always reset the value when
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* the multiple prop changes.
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* @param {Boolean} isMultiple
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* @return {void}
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*/
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multiple() {
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this.clearSelection()
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}
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},
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created() {
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this.mutableLoading = this.loading;
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if (typeof this.value !== "undefined" && this.isTrackingValues) {
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this.setInternalValueFromOptions(this.value)
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}
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this.$on('option:created', this.maybePushTag)
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},
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methods: {
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/**
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* Make sure tracked value is
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* one option if possible.
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* @param {Object|String} value
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* @return {void}
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*/
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setInternalValueFromOptions(value) {
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if (Array.isArray(value)) {
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this.$data._value = value.map(val => this.findOptionFromReducedValue(val));
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} else {
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this.$data._value = this.findOptionFromReducedValue(value);
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}
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},
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/**
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* Select a given option.
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* @param {Object|String} option
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* @return {void}
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*/
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select(option) {
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if (!this.isOptionSelected(option)) {
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if (this.taggable && !this.optionExists(option)) {
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option = this.createOption(option)
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}
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if (this.multiple) {
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option = this.selectedValue.concat(option)
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}
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this.updateValue(option);
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}
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this.onAfterSelect(option)
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},
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/**
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* De-select a given option.
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* @param {Object|String} option
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* @return {void}
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*/
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deselect (option) {
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this.updateValue(this.selectedValue.filter(val => {
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return !this.optionComparator(val, option);
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}));
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},
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/**
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* Clears the currently selected value(s)
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* @return {void}
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*/
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clearSelection() {
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this.updateValue(this.multiple ? [] : null)
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},
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/**
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* Called from this.select after each selection.
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* @param {Object|String} option
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* @return {void}
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*/
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onAfterSelect(option) {
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if (this.closeOnSelect) {
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this.open = !this.open
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this.searchEl.blur()
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}
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if (this.clearSearchOnSelect) {
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this.search = ''
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}
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},
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/**
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* Accepts a selected value, updates local
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* state when required, and triggers the
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* input event.
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*
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* @emits input
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* @param value
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*/
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updateValue (value) {
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if (this.isTrackingValues) {
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// Vue select has to manage value
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this.$data._value = value;
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}
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if (value !== null) {
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if (Array.isArray(value)) {
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value = value.map(val => this.reduce(val));
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} else {
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value = this.reduce(value);
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}
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}
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this.$emit('input', value);
|
|
},
|
|
|
|
/**
|
|
* Toggle the visibility of the dropdown menu.
|
|
* @param {Event} e
|
|
* @return {void}
|
|
*/
|
|
toggleDropdown (e) {
|
|
const target = e.target;
|
|
const toggleTargets = [
|
|
this.$el,
|
|
this.searchEl,
|
|
this.$refs.toggle,
|
|
];
|
|
|
|
if (typeof this.$refs.openIndicator !== 'undefined') {
|
|
toggleTargets.push(
|
|
this.$refs.openIndicator.$el,
|
|
// the line below is a bit gross, but required to support IE11 without adding polyfills
|
|
...Array.prototype.slice.call(this.$refs.openIndicator.$el.childNodes),
|
|
);
|
|
}
|
|
|
|
if (toggleTargets.indexOf(target) > -1 || target.classList.contains('vs__selected')) {
|
|
if (this.open) {
|
|
this.searchEl.blur(); // dropdown will close on blur
|
|
} else {
|
|
if (!this.disabled) {
|
|
this.open = true;
|
|
this.searchEl.focus();
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Check if the given option is currently selected.
|
|
* @param {Object|String} option
|
|
* @return {Boolean} True when selected | False otherwise
|
|
*/
|
|
isOptionSelected(option) {
|
|
return this.selectedValue.some(value => {
|
|
return this.optionComparator(value, option)
|
|
})
|
|
},
|
|
|
|
/**
|
|
* Determine if two option objects are matching.
|
|
*
|
|
* @param value {Object}
|
|
* @param option {Object}
|
|
* @returns {boolean}
|
|
*/
|
|
optionComparator(value, option) {
|
|
if (typeof value !== 'object' && typeof option !== 'object') {
|
|
// Comparing primitives
|
|
if (value === option) {
|
|
return true
|
|
}
|
|
} else {
|
|
// Comparing objects
|
|
if (value === this.reduce(option)) {
|
|
return true
|
|
}
|
|
if ((this.getOptionLabel(value) === this.getOptionLabel(option)) || (this.getOptionLabel(value) === option)) {
|
|
return true
|
|
}
|
|
if (this.reduce(value) === this.reduce(option)) {
|
|
return true
|
|
}
|
|
}
|
|
|
|
return false;
|
|
},
|
|
|
|
/**
|
|
* Finds an option from this.options
|
|
* where a reduced value matches
|
|
* the passed in value.
|
|
*
|
|
* @param value {Object}
|
|
* @returns {*}
|
|
*/
|
|
findOptionFromReducedValue (value) {
|
|
return this.options.find(option => JSON.stringify(this.reduce(option)) === JSON.stringify(value)) || value;
|
|
},
|
|
|
|
/**
|
|
* 'Private' function to close the search options
|
|
* @emits {search:blur}
|
|
* @returns {void}
|
|
*/
|
|
closeSearchOptions(){
|
|
this.open = false
|
|
this.$emit('search:blur')
|
|
},
|
|
|
|
/**
|
|
* Delete the value on Delete keypress when there is no
|
|
* text in the search input, & there's tags to delete
|
|
* @return {this.value}
|
|
*/
|
|
maybeDeleteValue() {
|
|
if (!this.searchEl.value.length && this.selectedValue && this.clearable) {
|
|
let value = null;
|
|
if (this.multiple) {
|
|
value = [...this.selectedValue.slice(0, this.selectedValue.length - 1)]
|
|
}
|
|
this.updateValue(value)
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Determine if an option exists
|
|
* within this.optionList array.
|
|
*
|
|
* @param {Object || String} option
|
|
* @return {boolean}
|
|
*/
|
|
optionExists(option) {
|
|
return this.optionList.some(opt => {
|
|
if (typeof opt === 'object' && this.getOptionLabel(opt) === option) {
|
|
return true
|
|
} else if (opt === option) {
|
|
return true
|
|
}
|
|
return false
|
|
})
|
|
},
|
|
|
|
/**
|
|
* Ensures that options are always
|
|
* passed as objects to scoped slots.
|
|
* @param option
|
|
* @return {*}
|
|
*/
|
|
normalizeOptionForSlot (option) {
|
|
return (typeof option === 'object') ? option : {[this.label]: option};
|
|
},
|
|
|
|
/**
|
|
* If push-tags is true, push the
|
|
* given option to `this.pushedTags`.
|
|
*
|
|
* @param {Object || String} option
|
|
* @return {void}
|
|
*/
|
|
maybePushTag(option) {
|
|
if (this.pushTags) {
|
|
this.pushedTags.push(option)
|
|
}
|
|
},
|
|
|
|
/**
|
|
* If there is any text in the search input, remove it.
|
|
* Otherwise, blur the search input to close the dropdown.
|
|
* @return {void}
|
|
*/
|
|
onEscape() {
|
|
if (!this.search.length) {
|
|
this.searchEl.blur()
|
|
} else {
|
|
this.search = ''
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Close the dropdown on blur.
|
|
* @emits {search:blur}
|
|
* @return {void}
|
|
*/
|
|
onSearchBlur() {
|
|
if (this.mousedown && !this.searching) {
|
|
this.mousedown = false
|
|
} else {
|
|
if (this.clearSearchOnBlur) {
|
|
this.search = ''
|
|
}
|
|
this.closeSearchOptions()
|
|
return
|
|
}
|
|
// Fixed bug where no-options message could not be closed
|
|
if (this.search.length === 0 && this.options.length === 0){
|
|
this.closeSearchOptions()
|
|
return
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Open the dropdown on focus.
|
|
* @emits {search:focus}
|
|
* @return {void}
|
|
*/
|
|
onSearchFocus() {
|
|
this.open = true
|
|
this.$emit('search:focus')
|
|
},
|
|
|
|
/**
|
|
* Event-Handler to help workaround IE11 (probably fixes 10 as well)
|
|
* firing a `blur` event when clicking
|
|
* the dropdown's scrollbar, causing it
|
|
* to collapse abruptly.
|
|
* @see https://github.com/sagalbot/vue-select/issues/106
|
|
* @return {void}
|
|
*/
|
|
onMousedown() {
|
|
this.mousedown = true
|
|
},
|
|
|
|
/**
|
|
* Event-Handler to help workaround IE11 (probably fixes 10 as well)
|
|
* @see https://github.com/sagalbot/vue-select/issues/106
|
|
* @return {void}
|
|
*/
|
|
onMouseUp() {
|
|
this.mousedown = false
|
|
},
|
|
|
|
/**
|
|
* Search 'input' KeyBoardEvent handler.
|
|
* @param e {KeyboardEvent}
|
|
* @return {Function}
|
|
*/
|
|
onSearchKeyDown (e) {
|
|
switch (e.keyCode) {
|
|
case 8:
|
|
// delete
|
|
return this.maybeDeleteValue();
|
|
case 9:
|
|
// tab
|
|
return this.onTab();
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Search 'input' KeyBoardEvent handler.
|
|
* @param e {KeyboardEvent}
|
|
* @return {Function}
|
|
*/
|
|
onSearchKeyUp (e) {
|
|
switch (e.keyCode) {
|
|
case 27:
|
|
// esc
|
|
return this.onEscape();
|
|
case 38:
|
|
// up.prevent
|
|
e.preventDefault();
|
|
return this.typeAheadUp();
|
|
case 40:
|
|
// down.prevent
|
|
e.preventDefault();
|
|
return this.typeAheadDown();
|
|
case 13:
|
|
// enter.prevent
|
|
e.preventDefault();
|
|
return this.typeAheadSelect();
|
|
}
|
|
}
|
|
},
|
|
|
|
computed: {
|
|
|
|
/**
|
|
* Determine if the component needs to
|
|
* track the state of values internally.
|
|
* @return {boolean}
|
|
*/
|
|
isTrackingValues () {
|
|
return typeof this.value === 'undefined' || this.$options.propsData.hasOwnProperty('reduce');
|
|
},
|
|
|
|
/**
|
|
* The options that are currently selected.
|
|
* @return {Array}
|
|
*/
|
|
selectedValue () {
|
|
let value = this.value;
|
|
|
|
if (this.isTrackingValues) {
|
|
// Vue select has to manage value internally
|
|
value = this.$data._value;
|
|
}
|
|
|
|
if (value) {
|
|
return [].concat(value);
|
|
}
|
|
|
|
return [];
|
|
},
|
|
|
|
/**
|
|
* The options available to be chosen
|
|
* from the dropdown, including any
|
|
* tags that have been pushed.
|
|
*
|
|
* @return {Array}
|
|
*/
|
|
optionList () {
|
|
return this.options.concat(this.pushedTags);
|
|
},
|
|
|
|
/**
|
|
* Find the search input DOM element.
|
|
* @returns {HTMLInputElement}
|
|
*/
|
|
searchEl () {
|
|
return !!this.$scopedSlots['search']
|
|
? this.$refs.selectedOptions.querySelector(this.searchInputQuerySelector)
|
|
: this.$refs.search;
|
|
},
|
|
|
|
/**
|
|
* The object to be bound to the $slots.search scoped slot.
|
|
* @returns {Object}
|
|
*/
|
|
scope () {
|
|
return {
|
|
search: {
|
|
attributes: {
|
|
'disabled': this.disabled,
|
|
'placeholder': this.searchPlaceholder,
|
|
'tabindex': this.tabindex,
|
|
'readonly': !this.searchable,
|
|
'id': this.inputId,
|
|
'aria-expanded': this.dropdownOpen,
|
|
'aria-label': 'Search for option',
|
|
'ref': 'search',
|
|
'role': 'combobox',
|
|
'type': 'search',
|
|
'autocomplete': 'off',
|
|
'value': this.search,
|
|
},
|
|
events: {
|
|
'keydown': this.onSearchKeyDown,
|
|
'keyup': this.onSearchKeyUp,
|
|
'blur': this.onSearchBlur,
|
|
'focus': this.onSearchFocus,
|
|
'input': (e) => this.search = e.target.value
|
|
},
|
|
},
|
|
spinner: {
|
|
loading: this.mutableLoading
|
|
},
|
|
openIndicator: {
|
|
attributes: {
|
|
'ref': 'openIndicator',
|
|
'role': 'presentation',
|
|
'class': 'vs__open-indicator',
|
|
},
|
|
},
|
|
};
|
|
},
|
|
|
|
/**
|
|
* Returns an object containing the child components
|
|
* that will be used throughout the component. The
|
|
* `component` prop can be used to overwrite the defaults.
|
|
*
|
|
* @return {Object}
|
|
*/
|
|
childComponents () {
|
|
return {
|
|
...childComponents,
|
|
...this.components
|
|
};
|
|
},
|
|
|
|
/**
|
|
* Holds the current state of the component.
|
|
* @return {Object}
|
|
*/
|
|
stateClasses() {
|
|
return {
|
|
'vs--open': this.dropdownOpen,
|
|
'vs--single': !this.multiple,
|
|
'vs--searching': this.searching && !this.noDrop,
|
|
'vs--searchable': this.searchable && !this.noDrop,
|
|
'vs--unsearchable': !this.searchable,
|
|
'vs--loading': this.mutableLoading,
|
|
'vs--disabled': this.disabled
|
|
}
|
|
},
|
|
|
|
/**
|
|
* If search text should clear on blur
|
|
* @return {Boolean} True when single and clearSearchOnSelect
|
|
*/
|
|
clearSearchOnBlur() {
|
|
return this.clearSearchOnSelect && !this.multiple
|
|
},
|
|
|
|
/**
|
|
* Return the current state of the
|
|
* search input
|
|
* @return {Boolean} True if non empty value
|
|
*/
|
|
searching() {
|
|
return !! this.search
|
|
},
|
|
|
|
/**
|
|
* Return the current state of the
|
|
* dropdown menu.
|
|
* @return {Boolean} True if open
|
|
*/
|
|
dropdownOpen() {
|
|
return this.noDrop ? false : this.open && !this.mutableLoading
|
|
},
|
|
|
|
/**
|
|
* Return the placeholder string if it's set
|
|
* & there is no value selected.
|
|
* @return {String} Placeholder text
|
|
*/
|
|
searchPlaceholder() {
|
|
if (this.isValueEmpty && this.placeholder) {
|
|
return this.placeholder;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* The currently displayed options, filtered
|
|
* by the search elements value. If tagging
|
|
* true, the search text will be prepended
|
|
* if it doesn't already exist.
|
|
*
|
|
* @return {array}
|
|
*/
|
|
filteredOptions() {
|
|
const optionList = [].concat(this.optionList);
|
|
|
|
if (!this.filterable && !this.taggable) {
|
|
return optionList;
|
|
}
|
|
|
|
let options = this.search.length ? this.filter(optionList, this.search, this) : optionList;
|
|
if (this.taggable && this.search.length && !this.optionExists(this.search)) {
|
|
options.unshift(this.search)
|
|
}
|
|
return options
|
|
},
|
|
|
|
/**
|
|
* Check if there aren't any options selected.
|
|
* @return {Boolean}
|
|
*/
|
|
isValueEmpty() {
|
|
return this.selectedValue.length === 0;
|
|
},
|
|
|
|
/**
|
|
* Determines if the clear button should be displayed.
|
|
* @return {Boolean}
|
|
*/
|
|
showClearButton() {
|
|
return !this.multiple && this.clearable && !this.open && !this.isValueEmpty
|
|
}
|
|
},
|
|
|
|
}
|
|
</script>
|