738 lines
30 KiB
Vue
738 lines
30 KiB
Vue
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<template>
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<div :id="id" :class="containerClass" @focusout="onFocusout">
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<span ref="firstHiddenFocusableElement" role="presentation" aria-hidden="true" class="p-hidden-accessible p-hidden-focusable" :tabindex="!disabled ? tabindex : -1" @focus="onFirstHiddenFocus"></span>
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<slot name="header" :value="modelValue" :options="visibleOptions"></slot>
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<div v-if="filter" class="p-listbox-header">
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<div class="p-listbox-filter-container">
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<input ref="filterInput" type="text" class="p-listbox-filter p-inputtext p-component" v-model="filterValue" :placeholder="filterPlaceholder"
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role="searchbox" autocomplete="off" :aria-owns="id + '_list'" :aria-activedescendant="focusedOptionId" :tabindex="!disabled && !focused ? tabindex : -1"
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@input="onFilterChange" @blur="onFilterBlur" @keydown="onFilterKeyDown" v-bind="filterInputProps">
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<span class="p-listbox-filter-icon pi pi-search"></span>
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</div>
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<span role="status" aria-live="polite" class="p-hidden-accessible">
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{{filterResultMessageText}}
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</span>
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</div>
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<div ref="listWrapper" class="p-listbox-list-wrapper" :style="listStyle">
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<VirtualScroller :ref="virtualScrollerRef" v-bind="virtualScrollerOptions" :style="listStyle" :items="visibleOptions" :tabindex="-1" :disabled="virtualScrollerDisabled">
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<template v-slot:content="{ styleClass, contentRef, items, getItemOptions, contentStyle, itemSize }">
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<ul :ref="(el) => listRef(el, contentRef)" :id="id + '_list'" :class="['p-listbox-list', styleClass]" :style="contentStyle" :tabindex="-1" role="listbox"
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:aria-multiselectable="multiple" :aria-label="ariaLabel" :aria-labelledby="ariaLabelledby" :aria-activedescendant="focused ? focusedOptionId : undefined" :aria-disabled="disabled"
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@focus="onListFocus" @blur="onListBlur" @keydown="onListKeyDown">
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<template v-for="(option, i) of items" :key="getOptionRenderKey(option, getOptionIndex(i, getItemOptions))">
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<li v-if="isOptionGroup(option)" :id="id + '_' + getOptionIndex(i, getItemOptions)" :style="{height: itemSize ? itemSize + 'px' : undefined}" class="p-listbox-item-group" role="option">
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<slot name="optiongroup" :option="option.optionGroup" :index="getOptionIndex(i, getItemOptions)">{{getOptionGroupLabel(option.optionGroup)}}</slot>
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</li>
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<li v-else v-ripple :id="id + '_' + getOptionIndex(i, getItemOptions)" :style="{height: itemSize ? itemSize + 'px' : undefined}"
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:class="['p-listbox-item', {'p-highlight': isSelected(option), 'p-focus': focusedOptionIndex === getOptionIndex(i, getItemOptions), 'p-disabled': isOptionDisabled(option)}]"
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role="option" :aria-label="getOptionLabel(option)" :aria-selected="isSelected(option)" :aria-disabled="isOptionDisabled(option)" :aria-setsize="ariaSetSize" :aria-posinset="getAriaPosInset(getOptionIndex(i, getItemOptions))"
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@click="onOptionSelect($event, option, getOptionIndex(i, getItemOptions))" @mousemove="onOptionMouseMove($event, getOptionIndex(i, getItemOptions))" @touchend="onOptionTouchEnd()">
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<slot name="option" :option="option" :index="getOptionIndex(i, getItemOptions)">{{getOptionLabel(option)}}</slot>
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</li>
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</template>
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<li v-if="filterValue && (!items || (items && items.length === 0))" class="p-listbox-empty-message" role="option">
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<slot name="emptyfilter">{{emptyFilterMessageText}}</slot>
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</li>
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<li v-else-if="(!options || (options && options.length === 0))" class="p-listbox-empty-message" role="option">
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<slot name="empty">{{emptyMessageText}}</slot>
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</li>
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</ul>
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<span v-if="(!options || (options && options.length === 0))" role="status" aria-live="polite" class="p-hidden-accessible">
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{{emptyMessageText}}
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</span>
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<span role="status" aria-live="polite" class="p-hidden-accessible">
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{{selectedMessageText}}
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</span>
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</template>
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<template v-if="$slots.loader" v-slot:loader="{ options }">
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<slot name="loader" :options="options"></slot>
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</template>
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</VirtualScroller>
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</div>
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<slot name="footer" :value="modelValue" :options="visibleOptions"></slot>
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<span ref="lastHiddenFocusableElement" role="presentation" aria-hidden="true" class="p-hidden-accessible p-hidden-focusable" :tabindex="!disabled ? tabindex : -1" @focus="onLastHiddenFocus"></span>
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</div>
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</template>
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<script>
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import {DomHandler,ObjectUtils,UniqueComponentId} from 'primevue/utils';
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import {FilterService} from 'primevue/api';
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import Ripple from 'primevue/ripple';
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import VirtualScroller from 'primevue/virtualscroller';
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export default {
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name: 'Listbox',
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emits: ['update:modelValue', 'change', 'focus', 'blur', 'filter'],
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props: {
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modelValue: null,
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options: Array,
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optionLabel: null,
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optionValue: null,
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optionDisabled: null,
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optionGroupLabel: null,
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optionGroupChildren: null,
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listStyle: null,
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disabled: Boolean,
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dataKey: null,
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multiple: Boolean,
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metaKeySelection: Boolean,
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filter: Boolean,
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filterPlaceholder: String,
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filterLocale: String,
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filterMatchMode: {
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type: String,
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default: 'contains'
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},
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filterFields: {
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type: Array,
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default: null
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},
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filterInputProps: null,
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virtualScrollerOptions: {
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type: Object,
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default: null
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},
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autoOptionFocus: {
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type: Boolean,
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default: true
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},
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filterMessage: {
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type: String,
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default: null
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},
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selectionMessage: {
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type: String,
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default: null
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},
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emptySelectionMessage: {
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type: String,
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default: null
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},
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emptyFilterMessage: {
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type: String,
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default: null
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},
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emptyMessage: {
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type: String,
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default: null
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},
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tabindex: {
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type: Number,
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default: 0
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},
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'aria-label': {
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type: String,
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default: null
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},
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'aria-labelledby': {
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type: String,
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default: null
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}
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},
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list: null,
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virtualScroller: null,
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optionTouched: false,
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startRangeIndex: -1,
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searchTimeout: null,
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searchValue: '',
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selectOnFocus: false,
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focusOnHover: false,
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data() {
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return {
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id: UniqueComponentId(),
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filterValue: null,
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focused: false,
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focusedOptionIndex: -1
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}
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},
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watch: {
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options() {
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this.autoUpdateModel();
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}
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},
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mounted() {
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this.id = this.$attrs.id || this.id;
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this.autoUpdateModel();
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},
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methods: {
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getOptionIndex(index, fn) {
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return this.virtualScrollerDisabled ? index : (fn && fn(index)['index']);
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},
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getOptionLabel(option) {
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return this.optionLabel ? ObjectUtils.resolveFieldData(option, this.optionLabel) : option;
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},
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getOptionValue(option) {
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return this.optionValue ? ObjectUtils.resolveFieldData(option, this.optionValue) : option;
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},
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getOptionRenderKey(option, index) {
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return (this.dataKey ? ObjectUtils.resolveFieldData(option, this.dataKey) : this.getOptionLabel(option)) + '_' + index;
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},
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isOptionDisabled(option) {
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return this.optionDisabled ? ObjectUtils.resolveFieldData(option, this.optionDisabled) : false;
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},
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isOptionGroup(option) {
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return this.optionGroupLabel && option.optionGroup && option.group;
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},
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getOptionGroupLabel(optionGroup) {
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return ObjectUtils.resolveFieldData(optionGroup, this.optionGroupLabel);
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},
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getOptionGroupChildren(optionGroup) {
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return ObjectUtils.resolveFieldData(optionGroup, this.optionGroupChildren);
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},
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getAriaPosInset(index) {
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return (this.optionGroupLabel ? index - this.visibleOptions.slice(0, index).filter(option => this.isOptionGroup(option)).length : index) + 1;
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},
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onFirstHiddenFocus() {
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this.list.focus();
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const firstFocusableEl = DomHandler.getFirstFocusableElement(this.$el, ':not(.p-hidden-focusable)');
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this.$refs.lastHiddenFocusableElement.tabIndex = ObjectUtils.isEmpty(firstFocusableEl) ? -1 : undefined;
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this.$refs.firstHiddenFocusableElement.tabIndex = -1;
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},
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onLastHiddenFocus(event) {
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const relatedTarget = event.relatedTarget;
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if (relatedTarget === this.list) {
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const firstFocusableEl = DomHandler.getFirstFocusableElement(this.$el, ':not(.p-hidden-focusable)');
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firstFocusableEl && firstFocusableEl.focus();
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this.$refs.firstHiddenFocusableElement.tabIndex = undefined;
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}
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else {
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this.$refs.firstHiddenFocusableElement.focus();
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}
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this.$refs.lastHiddenFocusableElement.tabIndex = -1;
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},
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onFocusout(event) {
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if (!this.$el.contains(event.relatedTarget) && this.$refs.lastHiddenFocusableElement && this.$refs.firstHiddenFocusableElement) {
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this.$refs.lastHiddenFocusableElement.tabIndex = this.$refs.firstHiddenFocusableElement.tabIndex = undefined;
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}
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},
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onListFocus(event) {
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this.focused = true;
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this.focusedOptionIndex = this.autoOptionFocus ? this.findFirstFocusedOptionIndex() : -1;
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this.$emit('focus', event);
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},
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onListBlur(event) {
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this.focused = false;
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this.focusedOptionIndex = this.startRangeIndex = -1;
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this.searchValue = '';
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this.$emit('blur', event);
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},
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onListKeyDown(event) {
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switch (event.code) {
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case 'ArrowDown':
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this.onArrowDownKey(event);
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break;
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case 'ArrowUp':
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this.onArrowUpKey(event);
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break;
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case 'Home':
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this.onHomeKey(event);
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break;
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case 'End':
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this.onEndKey(event);
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break;
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case 'PageDown':
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this.onPageDownKey(event);
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break;
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case 'PageUp':
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this.onPageUpKey(event);
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break;
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case 'Enter':
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case 'Space':
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this.onSpaceKey(event);
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break;
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case 'Tab':
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//NOOP
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break;
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case 'ShiftLeft':
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case 'ShiftRight':
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this.onShiftKey(event);
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break;
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default:
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if (event.code === 'KeyA' && this.multiple && (event.metaKey || event.ctrlKey)) {
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const value = this.visibleOptions.filter(option => this.isValidOption(option)).map(option => this.getOptionValue(option));
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this.updateModel(event, value);
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event.preventDefault();
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break;
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}
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if (ObjectUtils.isPrintableCharacter(event.key)) {
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this.searchOptions(event, event.key);
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event.preventDefault();
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}
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break;
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}
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},
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onOptionSelect(event, option, index = -1) {
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if (this.disabled || this.isOptionDisabled(option)) {
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return;
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}
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this.multiple ? this.onOptionSelectMultiple(event, option) : this.onOptionSelectSingle(event, option);
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this.optionTouched = false;
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index !== -1 && (this.focusedOptionIndex = index);
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},
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onOptionMouseMove(event, index) {
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if (this.focusOnHover) {
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this.changeFocusedOptionIndex(event, index);
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}
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},
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onOptionTouchEnd() {
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if (this.disabled) {
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return;
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}
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this.optionTouched = true;
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},
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onOptionSelectSingle(event, option) {
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let selected = this.isSelected(option);
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let valueChanged = false;
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let value = null;
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let metaSelection = this.optionTouched ? false : this.metaKeySelection;
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if (metaSelection) {
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let metaKey = (event.metaKey || event.ctrlKey);
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if (selected) {
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if (metaKey) {
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value = null;
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valueChanged = true;
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}
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}
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else {
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value = this.getOptionValue(option);
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valueChanged = true;
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}
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}
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else {
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value = selected ? null : this.getOptionValue(option);
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valueChanged = true;
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}
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if (valueChanged) {
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this.updateModel(event, value);
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}
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},
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onOptionSelectMultiple(event, option) {
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let selected = this.isSelected(option);
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let value = null;
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let metaSelection = this.optionTouched ? false : this.metaKeySelection;
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if (metaSelection) {
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let metaKey = (event.metaKey || event.ctrlKey);
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if (selected) {
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value = metaKey ? this.removeOption(option) : [this.getOptionValue(option)];
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}
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else {
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value = (metaKey) ? this.modelValue || [] : [];
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value = [...value, this.getOptionValue(option)];
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}
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}
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else {
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value = selected ? this.removeOption(option) : [...this.modelValue || [], this.getOptionValue(option)];
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}
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this.updateModel(event, value);
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},
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onOptionSelectRange(event, start = -1, end = -1) {
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start === -1 && (start = this.findNearestSelectedOptionIndex(end, true));
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end === -1 && (end = this.findNearestSelectedOptionIndex(start));
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||
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if (start !== -1 && end !== -1) {
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||
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const rangeStart = Math.min(start, end);
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const rangeEnd = Math.max(start, end);
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||
|
|
const value = this.visibleOptions.slice(rangeStart, rangeEnd + 1).filter(option => this.isValidOption(option)).map(option => this.getOptionValue(option));
|
||
|
|
|
||
|
|
this.updateModel(event, value);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
onFilterChange(event) {
|
||
|
|
this.$emit('filter', {originalEvent: event, value: event.target.value});
|
||
|
|
this.focusedOptionIndex = this.startRangeIndex = -1;
|
||
|
|
},
|
||
|
|
onFilterBlur() {
|
||
|
|
this.focusedOptionIndex = this.startRangeIndex = -1;
|
||
|
|
},
|
||
|
|
onFilterKeyDown(event) {
|
||
|
|
switch (event.code) {
|
||
|
|
case 'ArrowDown':
|
||
|
|
this.onArrowDownKey(event);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'ArrowUp':
|
||
|
|
this.onArrowUpKey(event);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'ArrowLeft':
|
||
|
|
case 'ArrowRight':
|
||
|
|
this.onArrowLeftKey(event, true);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'Home':
|
||
|
|
this.onHomeKey(event, true);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'End':
|
||
|
|
this.onEndKey(event, true);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'Enter':
|
||
|
|
this.onEnterKey(event);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'ShiftLeft':
|
||
|
|
case 'ShiftRight':
|
||
|
|
this.onShiftKey(event);
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
onArrowDownKey(event) {
|
||
|
|
const optionIndex = this.focusedOptionIndex !== -1 ? this.findNextOptionIndex(this.focusedOptionIndex) : this.findFirstFocusedOptionIndex();
|
||
|
|
|
||
|
|
if (this.multiple && event.shiftKey) {
|
||
|
|
this.onOptionSelectRange(event, this.startRangeIndex, optionIndex);
|
||
|
|
}
|
||
|
|
|
||
|
|
this.changeFocusedOptionIndex(event, optionIndex);
|
||
|
|
event.preventDefault();
|
||
|
|
},
|
||
|
|
onArrowUpKey(event) {
|
||
|
|
const optionIndex = this.focusedOptionIndex !== -1 ? this.findPrevOptionIndex(this.focusedOptionIndex) : this.findLastFocusedOptionIndex();
|
||
|
|
|
||
|
|
if (this.multiple && event.shiftKey) {
|
||
|
|
this.onOptionSelectRange(event, optionIndex, this.startRangeIndex);
|
||
|
|
}
|
||
|
|
|
||
|
|
this.changeFocusedOptionIndex(event, optionIndex);
|
||
|
|
event.preventDefault();
|
||
|
|
},
|
||
|
|
onArrowLeftKey(event, pressedInInputText = false) {
|
||
|
|
pressedInInputText && (this.focusedOptionIndex = -1);
|
||
|
|
},
|
||
|
|
onHomeKey(event, pressedInInputText = false) {
|
||
|
|
if (pressedInInputText) {
|
||
|
|
event.currentTarget.setSelectionRange(0, 0);
|
||
|
|
this.focusedOptionIndex = -1;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
let metaKey = event.metaKey || event.ctrlKey;
|
||
|
|
let optionIndex = this.findFirstOptionIndex();
|
||
|
|
|
||
|
|
if (this.multiple && event.shiftKey && metaKey) {
|
||
|
|
this.onOptionSelectRange(event, optionIndex, this.startRangeIndex);
|
||
|
|
}
|
||
|
|
|
||
|
|
this.changeFocusedOptionIndex(event, optionIndex);
|
||
|
|
}
|
||
|
|
|
||
|
|
event.preventDefault();
|
||
|
|
},
|
||
|
|
onEndKey(event, pressedInInputText = false) {
|
||
|
|
if (pressedInInputText) {
|
||
|
|
const target = event.currentTarget;
|
||
|
|
const len = target.value.length;
|
||
|
|
target.setSelectionRange(len, len);
|
||
|
|
this.focusedOptionIndex = -1;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
let metaKey = event.metaKey || event.ctrlKey;
|
||
|
|
let optionIndex = this.findLastOptionIndex();
|
||
|
|
|
||
|
|
if (this.multiple && event.shiftKey && metaKey) {
|
||
|
|
this.onOptionSelectRange(event, this.startRangeIndex, optionIndex);
|
||
|
|
}
|
||
|
|
|
||
|
|
this.changeFocusedOptionIndex(event, optionIndex);
|
||
|
|
}
|
||
|
|
|
||
|
|
event.preventDefault();
|
||
|
|
},
|
||
|
|
onPageUpKey(event) {
|
||
|
|
this.scrollInView(0);
|
||
|
|
event.preventDefault();
|
||
|
|
},
|
||
|
|
onPageDownKey(event) {
|
||
|
|
this.scrollInView(this.visibleOptions.length - 1);
|
||
|
|
event.preventDefault();
|
||
|
|
},
|
||
|
|
onEnterKey(event) {
|
||
|
|
if (this.focusedOptionIndex !== -1) {
|
||
|
|
if (this.multiple && event.shiftKey)
|
||
|
|
this.onOptionSelectRange(event, this.focusedOptionIndex);
|
||
|
|
else
|
||
|
|
this.onOptionSelect(event, this.visibleOptions[this.focusedOptionIndex]);
|
||
|
|
}
|
||
|
|
|
||
|
|
event.preventDefault();
|
||
|
|
},
|
||
|
|
onSpaceKey(event) {
|
||
|
|
this.onEnterKey(event);
|
||
|
|
},
|
||
|
|
onShiftKey() {
|
||
|
|
this.startRangeIndex = this.focusedOptionIndex;
|
||
|
|
},
|
||
|
|
isOptionMatched(option) {
|
||
|
|
return this.isValidOption(option) && this.getOptionLabel(option).toLocaleLowerCase(this.filterLocale).startsWith(this.searchValue.toLocaleLowerCase(this.filterLocale));
|
||
|
|
},
|
||
|
|
isValidOption(option) {
|
||
|
|
return option && !(this.isOptionDisabled(option) || this.isOptionGroup(option));
|
||
|
|
},
|
||
|
|
isValidSelectedOption(option) {
|
||
|
|
return this.isValidOption(option) && this.isSelected(option);
|
||
|
|
},
|
||
|
|
isSelected(option) {
|
||
|
|
const optionValue = this.getOptionValue(option);
|
||
|
|
|
||
|
|
if (this.multiple)
|
||
|
|
return (this.modelValue || []).some(value => ObjectUtils.equals(value, optionValue, this.equalityKey));
|
||
|
|
else
|
||
|
|
return ObjectUtils.equals(this.modelValue, optionValue, this.equalityKey);
|
||
|
|
},
|
||
|
|
findFirstOptionIndex() {
|
||
|
|
return this.visibleOptions.findIndex(option => this.isValidOption(option));
|
||
|
|
},
|
||
|
|
findLastOptionIndex() {
|
||
|
|
return ObjectUtils.findLastIndex(this.visibleOptions, option => this.isValidOption(option));
|
||
|
|
},
|
||
|
|
findNextOptionIndex(index) {
|
||
|
|
const matchedOptionIndex = index < (this.visibleOptions.length - 1) ? this.visibleOptions.slice(index + 1).findIndex(option => this.isValidOption(option)) : -1;
|
||
|
|
return matchedOptionIndex > -1 ? matchedOptionIndex + index + 1 : index;
|
||
|
|
},
|
||
|
|
findPrevOptionIndex(index) {
|
||
|
|
const matchedOptionIndex = index > 0 ? ObjectUtils.findLastIndex(this.visibleOptions.slice(0, index), option => this.isValidOption(option)) : -1;
|
||
|
|
return matchedOptionIndex > -1 ? matchedOptionIndex : index;
|
||
|
|
},
|
||
|
|
findFirstSelectedOptionIndex() {
|
||
|
|
return this.hasSelectedOption ? this.visibleOptions.findIndex(option => this.isValidSelectedOption(option)) : -1;
|
||
|
|
},
|
||
|
|
findLastSelectedOptionIndex() {
|
||
|
|
return this.hasSelectedOption ? ObjectUtils.findLastIndex(this.visibleOptions, option => this.isValidSelectedOption(option)) : -1;
|
||
|
|
},
|
||
|
|
findNextSelectedOptionIndex(index) {
|
||
|
|
const matchedOptionIndex = this.hasSelectedOption && index < (this.visibleOptions.length - 1) ? this.visibleOptions.slice(index + 1).findIndex(option => this.isValidSelectedOption(option)) : -1;
|
||
|
|
return matchedOptionIndex > -1 ? matchedOptionIndex + index + 1 : -1;
|
||
|
|
},
|
||
|
|
findPrevSelectedOptionIndex(index) {
|
||
|
|
const matchedOptionIndex = this.hasSelectedOption && index > 0 ? ObjectUtils.findLastIndex(this.visibleOptions.slice(0, index), option => this.isValidSelectedOption(option)) : -1;
|
||
|
|
return matchedOptionIndex > -1 ? matchedOptionIndex : -1;
|
||
|
|
},
|
||
|
|
findNearestSelectedOptionIndex(index, firstCheckUp = false) {
|
||
|
|
let matchedOptionIndex = -1;
|
||
|
|
|
||
|
|
if (this.hasSelectedOption) {
|
||
|
|
if (firstCheckUp) {
|
||
|
|
matchedOptionIndex = this.findPrevSelectedOptionIndex(index);
|
||
|
|
matchedOptionIndex = matchedOptionIndex === -1 ? this.findNextSelectedOptionIndex(index) : matchedOptionIndex;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
matchedOptionIndex = this.findNextSelectedOptionIndex(index);
|
||
|
|
matchedOptionIndex = matchedOptionIndex === -1 ? this.findPrevSelectedOptionIndex(index) : matchedOptionIndex;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return matchedOptionIndex > -1 ? matchedOptionIndex : index;
|
||
|
|
},
|
||
|
|
findFirstFocusedOptionIndex() {
|
||
|
|
const selectedIndex = this.findFirstSelectedOptionIndex();
|
||
|
|
return selectedIndex < 0 ? this.findFirstOptionIndex() : selectedIndex;
|
||
|
|
},
|
||
|
|
findLastFocusedOptionIndex() {
|
||
|
|
const selectedIndex = this.findLastSelectedOptionIndex();
|
||
|
|
return selectedIndex < 0 ? this.findLastOptionIndex() : selectedIndex;
|
||
|
|
},
|
||
|
|
searchOptions(event, char) {
|
||
|
|
this.searchValue = (this.searchValue || '') + char;
|
||
|
|
|
||
|
|
let optionIndex = -1;
|
||
|
|
if (this.focusedOptionIndex !== -1) {
|
||
|
|
optionIndex = this.visibleOptions.slice(this.focusedOptionIndex).findIndex(option => this.isOptionMatched(option));
|
||
|
|
optionIndex = optionIndex === -1 ? this.visibleOptions.slice(0, this.focusedOptionIndex).findIndex(option => this.isOptionMatched(option)) : optionIndex + this.focusedOptionIndex;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
optionIndex = this.visibleOptions.findIndex(option => this.isOptionMatched(option));
|
||
|
|
}
|
||
|
|
|
||
|
|
if (optionIndex === -1 && this.focusedOptionIndex === -1) {
|
||
|
|
optionIndex = this.findFirstFocusedOptionIndex();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (optionIndex !== -1) {
|
||
|
|
this.changeFocusedOptionIndex(event, optionIndex);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (this.searchTimeout) {
|
||
|
|
clearTimeout(this.searchTimeout);
|
||
|
|
}
|
||
|
|
|
||
|
|
this.searchTimeout = setTimeout(() => {
|
||
|
|
this.searchValue = '';
|
||
|
|
this.searchTimeout = null;
|
||
|
|
}, 500);
|
||
|
|
},
|
||
|
|
removeOption(option) {
|
||
|
|
return this.modelValue.filter(val => !ObjectUtils.equals(val, this.getOptionValue(option), this.equalityKey));
|
||
|
|
},
|
||
|
|
changeFocusedOptionIndex(event, index) {
|
||
|
|
if (this.focusedOptionIndex !== index) {
|
||
|
|
this.focusedOptionIndex = index;
|
||
|
|
this.scrollInView();
|
||
|
|
|
||
|
|
if (this.selectOnFocus && !this.multiple) {
|
||
|
|
this.updateModel(event, this.getOptionValue(this.visibleOptions[index]));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
scrollInView(index = -1) {
|
||
|
|
const id = index !== -1 ? `${this.id}_${index}` : this.focusedOptionId;
|
||
|
|
const element = DomHandler.findSingle(this.list, `li[id="${id}"]`);
|
||
|
|
if (element) {
|
||
|
|
element.scrollIntoView && element.scrollIntoView({ block: 'nearest', inline: 'nearest' });
|
||
|
|
}
|
||
|
|
else if (!this.virtualScrollerDisabled) {
|
||
|
|
this.virtualScroller && this.virtualScroller.scrollToIndex(index !== -1 ? index : this.focusedOptionIndex);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
autoUpdateModel() {
|
||
|
|
if (this.selectOnFocus && this.autoOptionFocus && !this.hasSelectedOption) {
|
||
|
|
this.focusedOptionIndex = this.findFirstFocusedOptionIndex();
|
||
|
|
const value = this.getOptionValue(this.visibleOptions[this.focusedOptionIndex]);
|
||
|
|
this.updateModel(null, this.multiple ? [value] : value);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
updateModel(event, value) {
|
||
|
|
this.$emit('update:modelValue', value);
|
||
|
|
this.$emit('change', { originalEvent: event, value });
|
||
|
|
},
|
||
|
|
flatOptions(options) {
|
||
|
|
return (options || []).reduce((result, option, index) => {
|
||
|
|
result.push({ optionGroup: option, group: true, index });
|
||
|
|
|
||
|
|
const optionGroupChildren = this.getOptionGroupChildren(option);
|
||
|
|
optionGroupChildren && optionGroupChildren.forEach(o => result.push(o));
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}, []);
|
||
|
|
},
|
||
|
|
listRef(el, contentRef) {
|
||
|
|
this.list = el;
|
||
|
|
contentRef && contentRef(el); // For VirtualScroller
|
||
|
|
},
|
||
|
|
virtualScrollerRef(el) {
|
||
|
|
this.virtualScroller = el;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
computed: {
|
||
|
|
containerClass() {
|
||
|
|
return ['p-listbox p-component', {
|
||
|
|
'p-focus': this.focused,
|
||
|
|
'p-disabled': this.disabled
|
||
|
|
}];
|
||
|
|
},
|
||
|
|
visibleOptions() {
|
||
|
|
const options = this.optionGroupLabel ? this.flatOptions(this.options) : (this.options || []);
|
||
|
|
|
||
|
|
return this.filterValue ? FilterService.filter(options, this.searchFields, this.filterValue, this.filterMatchMode, this.filterLocale) : options;
|
||
|
|
},
|
||
|
|
hasSelectedOption() {
|
||
|
|
return ObjectUtils.isNotEmpty(this.modelValue);
|
||
|
|
},
|
||
|
|
equalityKey() {
|
||
|
|
return this.optionValue ? null : this.dataKey;
|
||
|
|
},
|
||
|
|
searchFields() {
|
||
|
|
return this.filterFields || [this.optionLabel];
|
||
|
|
},
|
||
|
|
filterResultMessageText() {
|
||
|
|
return ObjectUtils.isNotEmpty(this.visibleOptions) ? this.filterMessageText.replaceAll('{0}', this.visibleOptions.length) : this.emptyFilterMessageText;
|
||
|
|
},
|
||
|
|
filterMessageText() {
|
||
|
|
return this.filterMessage || this.$primevue.config.locale.searchMessage || '';
|
||
|
|
},
|
||
|
|
emptyFilterMessageText() {
|
||
|
|
return this.emptyFilterMessage || this.$primevue.config.locale.emptySearchMessage || this.$primevue.config.locale.emptyFilterMessage || '';
|
||
|
|
},
|
||
|
|
emptyMessageText() {
|
||
|
|
return this.emptyMessage || this.$primevue.config.locale.emptyMessage || '';
|
||
|
|
},
|
||
|
|
selectionMessageText() {
|
||
|
|
return this.selectionMessage || this.$primevue.config.locale.selectionMessage || '';
|
||
|
|
},
|
||
|
|
emptySelectionMessageText() {
|
||
|
|
return this.emptySelectionMessage || this.$primevue.config.locale.emptySelectionMessage || '';
|
||
|
|
},
|
||
|
|
selectedMessageText() {
|
||
|
|
return this.hasSelectedOption ? this.selectionMessageText.replaceAll('{0}', this.multiple ? this.modelValue.length : '1') : this.emptySelectionMessageText;
|
||
|
|
},
|
||
|
|
focusedOptionId() {
|
||
|
|
return this.focusedOptionIndex !== -1 ? `${this.id}_${this.focusedOptionIndex}` : null;
|
||
|
|
},
|
||
|
|
ariaSetSize() {
|
||
|
|
return this.visibleOptions.filter(option => !this.isOptionGroup(option)).length;
|
||
|
|
},
|
||
|
|
virtualScrollerDisabled() {
|
||
|
|
return !this.virtualScrollerOptions;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
directives: {
|
||
|
|
'ripple': Ripple
|
||
|
|
},
|
||
|
|
components: {
|
||
|
|
'VirtualScroller': VirtualScroller
|
||
|
|
}
|
||
|
|
}
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<style>
|
||
|
|
.p-listbox-list-wrapper {
|
||
|
|
overflow: auto;
|
||
|
|
}
|
||
|
|
|
||
|
|
.p-listbox-list {
|
||
|
|
list-style-type: none;
|
||
|
|
margin: 0;
|
||
|
|
padding: 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
.p-listbox-item {
|
||
|
|
cursor: pointer;
|
||
|
|
position: relative;
|
||
|
|
overflow: hidden;
|
||
|
|
}
|
||
|
|
|
||
|
|
.p-listbox-item-group {
|
||
|
|
cursor: auto;
|
||
|
|
}
|
||
|
|
|
||
|
|
.p-listbox-filter-container {
|
||
|
|
position: relative;
|
||
|
|
}
|
||
|
|
|
||
|
|
.p-listbox-filter-icon {
|
||
|
|
position: absolute;
|
||
|
|
top: 50%;
|
||
|
|
margin-top: -.5rem;
|
||
|
|
}
|
||
|
|
|
||
|
|
.p-listbox-filter {
|
||
|
|
width: 100%;
|
||
|
|
}
|
||
|
|
</style>
|