primevue-mirror/components/autocomplete/AutoComplete.vue

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2022-09-06 12:03:37 +00:00
<template>
<div ref="container" :class="containerClass" @click="onContainerClick">
<input v-if="!multiple" ref="focusInput" :id="inputId" type="text" :style="inputStyle" :class="inputStyleClass" :value="inputValue" :placeholder="placeholder" :tabindex="!disabled ? tabindex : -1" :disabled="disabled" autocomplete="off"
role="combobox" :aria-label="ariaLabel" :aria-labelledby="ariaLabelledby" aria-haspopup="listbox" aria-autocomplete="list" :aria-expanded="overlayVisible" :aria-controls="id + '_list'" :aria-activedescendant="focused ? focusedOptionId : undefined"
@focus="onFocus" @blur="onBlur" @keydown="onKeyDown" @input="onInput" @change="onChange" v-bind="inputProps" />
<ul v-if="multiple" ref="multiContainer" :class="multiContainerClass" tabindex="-1" role="listbox" aria-orientation="horizontal" :aria-activedescendant="focused ? focusedMultipleOptionId : undefined"
@focus="onMultipleContainerFocus" @blur="onMultipleContainerBlur" @keydown="onMultipleContainerKeyDown">
<li v-for="(option, i) of modelValue" :key="i" :id="id + '_multiple_option_' + i" :class="['p-autocomplete-token', {'p-focus': focusedMultipleOptionIndex === i}]"
role="option" :aria-label="getOptionLabel(option)" :aria-selected="true" :aria-setsize="modelValue.length" :aria-posinset="i + 1">
<slot name="chip" :value="option">
<span class="p-autocomplete-token-label">{{getOptionLabel(option)}}</span>
</slot>
<span class="p-autocomplete-token-icon pi pi-times-circle" @click="removeOption($event, i)" aria-hidden="true"></span>
</li>
<li class="p-autocomplete-input-token" role="option">
<input ref="focusInput" :id="inputId" type="text" :style="inputStyle" :class="inputClass" :placeholder="placeholder" :tabindex="!disabled ? tabindex : -1" :disabled="disabled" autocomplete="off"
role="combobox" :aria-label="ariaLabel" :aria-labelledby="ariaLabelledby" aria-haspopup="listbox" aria-autocomplete="list" :aria-expanded="overlayVisible" :aria-controls="id + '_list'" :aria-activedescendant="focused ? focusedOptionId : undefined"
@focus="onFocus" @blur="onBlur" @keydown="onKeyDown" @input="onInput" @change="onChange" v-bind="inputProps" />
</li>
</ul>
<i v-if="searching" :class="loadingIconClass" aria-hidden="true"></i>
<Button v-if="dropdown" ref="dropdownButton" type="button" icon="pi pi-chevron-down" class="p-autocomplete-dropdown" tabindex="-1" :disabled="disabled" aria-hidden="true" @click="onDropdownClick" />
<span role="status" aria-live="polite" class="p-hidden-accessible">
{{searchResultMessageText}}
</span>
<Portal :appendTo="appendTo">
<transition name="p-connected-overlay" @enter="onOverlayEnter" @after-enter="onOverlayAfterEnter" @leave="onOverlayLeave" @after-leave="onOverlayAfterLeave">
<div v-if="overlayVisible" :ref="overlayRef" :class="panelStyleClass" :style="{...panelStyle, 'max-height': virtualScrollerDisabled ? scrollHeight : ''}" @click="onOverlayClick" @keydown="onOverlayKeyDown" v-bind="panelProps">
<slot name="header" :value="modelValue" :suggestions="visibleOptions"></slot>
<VirtualScroller :ref="virtualScrollerRef" v-bind="virtualScrollerOptions" :style="{'height': scrollHeight}" :items="visibleOptions" :tabindex="-1" :disabled="virtualScrollerDisabled">
<template v-slot:content="{ styleClass, contentRef, items, getItemOptions, contentStyle, itemSize }">
<ul :ref="(el) => listRef(el, contentRef)" :id="id + '_list'" :class="['p-autocomplete-items', styleClass]" :style="contentStyle" role="listbox">
<template v-for="(option, i) of items" :key="getOptionRenderKey(option, getOptionIndex(i, getItemOptions))">
<li v-if="isOptionGroup(option)" :id="id + '_' + getOptionIndex(i, getItemOptions)" :style="{height: itemSize ? itemSize + 'px' : undefined}" class="p-autocomplete-item-group" role="option">
<slot name="optiongroup" :option="option.optionGroup" :item="option.optionGroup" :index="getOptionIndex(i, getItemOptions)">{{getOptionGroupLabel(option.optionGroup)}}</slot>
</li>
<li v-else v-ripple :id="id + '_' + getOptionIndex(i, getItemOptions)" :style="{height: itemSize ? itemSize + 'px' : undefined}"
:class="['p-autocomplete-item', {'p-highlight': isSelected(option), 'p-focus': focusedOptionIndex === getOptionIndex(i, getItemOptions), 'p-disabled': isOptionDisabled(option)}]"
role="option" :aria-label="getOptionLabel(option)" :aria-selected="isSelected(option)" :aria-disabled="isOptionDisabled(option)" :aria-setsize="ariaSetSize" :aria-posinset="getAriaPosInset(getOptionIndex(i, getItemOptions))"
@click="onOptionSelect($event, option)" @mousemove="onOptionMouseMove($event, getOptionIndex(i, getItemOptions))">
<slot v-if="$slots.option" name="option" :option="option" :index="getOptionIndex(i, getItemOptions)">{{getOptionLabel(option)}}</slot>
<slot v-else name="item" :item="option" :index="getOptionIndex(i, getItemOptions)">{{getOptionLabel(option)}}</slot> <!--TODO: Deprecated since v3.16.0-->
</li>
</template>
</ul>
<span role="status" aria-live="polite" class="p-hidden-accessible">
{{selectedMessageText}}
</span>
</template>
<template v-if="$slots.loader" v-slot:loader="{ options }">
<slot name="loader" :options="options"></slot>
</template>
</VirtualScroller>
<slot name="footer" :value="modelValue" :suggestions="visibleOptions"></slot>
</div>
</transition>
</Portal>
</div>
</template>
<script>
import {ConnectedOverlayScrollHandler,UniqueComponentId,ObjectUtils,DomHandler,ZIndexUtils} from 'primevue/utils';
import OverlayEventBus from 'primevue/overlayeventbus';
import Button from 'primevue/button';
import Ripple from 'primevue/ripple';
import VirtualScroller from 'primevue/virtualscroller';
import Portal from 'primevue/portal';
export default {
name: 'AutoComplete',
emits: ['update:modelValue', 'change', 'focus', 'blur', 'item-select', 'item-unselect', 'dropdown-click', 'clear', 'complete', 'before-show', 'before-hide', 'show', 'hide'],
props: {
modelValue: null,
suggestions: {
type: Array,
default: null
},
field: { // TODO: Deprecated since v3.16.0
type: [String,Function],
default: null
},
optionLabel: null,
optionDisabled: null,
optionGroupLabel: null,
optionGroupChildren: null,
scrollHeight: {
type: String,
default: '200px'
},
dropdown: {
type: Boolean,
default: false
},
dropdownMode: {
type: String,
default: 'blank'
},
autoHighlight: { // TODO: Deprecated since v3.16.0
type: Boolean,
default: false
},
multiple: {
type: Boolean,
default: false
},
disabled: {
type: Boolean,
default: false
},
placeholder: {
type: String,
default: null
},
dataKey: {
type: String,
default: null
},
minLength: {
type: Number,
default: 1
},
delay: {
type: Number,
default: 300
},
appendTo: {
type: String,
default: 'body'
},
forceSelection: {
type: Boolean,
default: false
},
completeOnFocus: {
type: Boolean,
default: false
},
inputId: String,
inputStyle: null,
inputClass: null,
inputProps: null,
panelStyle: null,
panelClass: null,
panelProps: null,
loadingIcon: {
type: String,
default: 'pi pi-spinner'
},
virtualScrollerOptions: {
type: Object,
default: null
},
autoOptionFocus: {
type: Boolean,
default: true
},
searchLocale: {
type: String,
default: undefined
},
searchMessage: {
type: String,
default: null
},
selectionMessage: {
type: String,
default: null
},
emptySelectionMessage: {
type: String,
default: null
},
emptySearchMessage: {
type: String,
default: null
},
tabindex: {
type: Number,
default: 0
},
'aria-label': {
type: String,
default: null
},
'aria-labelledby': {
type: String,
default: null
}
},
outsideClickListener: null,
resizeListener: null,
scrollHandler: null,
overlay: null,
virtualScroller: null,
searchTimeout: null,
selectOnFocus: false,
focusOnHover: false,
dirty: false,
data() {
return {
id: UniqueComponentId(),
focused: false,
focusedOptionIndex: -1,
focusedMultipleOptionIndex: -1,
overlayVisible: false,
searching: false
}
},
watch: {
suggestions() {
if (this.searching) {
ObjectUtils.isNotEmpty(this.suggestions) ? this.show() : this.hide();
this.focusedOptionIndex = this.overlayVisible && this.autoOptionFocus ? this.findFirstFocusedOptionIndex() : -1;
this.searching = false;
}
this.autoUpdateModel();
}
},
mounted() {
this.id = this.$attrs.id || this.id;
this.autoUpdateModel();
},
updated() {
if (this.overlayVisible) {
this.alignOverlay();
}
},
beforeUnmount() {
this.unbindOutsideClickListener();
this.unbindResizeListener();
if (this.scrollHandler) {
this.scrollHandler.destroy();
this.scrollHandler = null;
}
if (this.overlay) {
ZIndexUtils.clear(this.overlay);
this.overlay = null;
}
},
methods: {
getOptionIndex(index, fn) {
return this.virtualScrollerDisabled ? index : (fn && fn(index)['index']);
},
getOptionLabel(option) {
return this.field || this.optionLabel ? ObjectUtils.resolveFieldData(option, this.field || this.optionLabel) : option;
},
getOptionValue(option) {
return option; // TODO: The 'optionValue' properties can be added.
},
getOptionRenderKey(option, index) {
return (this.dataKey ? ObjectUtils.resolveFieldData(option, this.dataKey) : this.getOptionLabel(option)) + '_' + index;
},
isOptionDisabled(option) {
return this.optionDisabled ? ObjectUtils.resolveFieldData(option, this.optionDisabled) : false;
},
isOptionGroup(option) {
return this.optionGroupLabel && option.optionGroup && option.group;
},
getOptionGroupLabel(optionGroup) {
return ObjectUtils.resolveFieldData(optionGroup, this.optionGroupLabel);
},
getOptionGroupChildren(optionGroup) {
return ObjectUtils.resolveFieldData(optionGroup, this.optionGroupChildren);
},
getAriaPosInset(index) {
return (this.optionGroupLabel ? index - this.visibleOptions.slice(0, index).filter(option => this.isOptionGroup(option)).length : index) + 1;
},
show(isFocus) {
this.$emit('before-show');
this.dirty = true;
this.overlayVisible = true;
this.focusedOptionIndex = this.focusedOptionIndex !== -1 ? this.focusedOptionIndex : (this.autoOptionFocus ? this.findFirstFocusedOptionIndex() : -1);
isFocus && this.$refs.focusInput.focus();
},
hide(isFocus) {
const _hide = () => {
this.$emit('before-hide');
this.dirty = isFocus;
this.overlayVisible = false;
this.focusedOptionIndex = -1;
isFocus && this.$refs.focusInput.focus();
}
setTimeout(() => { _hide() }, 0); // For ScreenReaders
},
onFocus(event) {
if (!this.dirty && this.completeOnFocus) {
this.search(event, event.target.value, 'focus');
}
this.dirty = true;
this.focused = true;
this.focusedOptionIndex = this.overlayVisible && this.autoOptionFocus ? this.findFirstFocusedOptionIndex() : -1;
this.overlayVisible && this.scrollInView(this.focusedOptionIndex);
this.$emit('focus', event);
},
onBlur(event) {
this.dirty = false;
this.focused = false;
this.focusedOptionIndex = -1;
this.$emit('blur', event);
},
onKeyDown(event) {
switch (event.code) {
case 'ArrowDown':
this.onArrowDownKey(event);
break;
case 'ArrowUp':
this.onArrowUpKey(event);
break;
case 'ArrowLeft':
this.onArrowLeftKey(event);
break;
case 'ArrowRight':
this.onArrowRightKey(event);
break;
case 'Home':
this.onHomeKey(event);
break;
case 'End':
this.onEndKey(event);
break;
case 'PageDown':
this.onPageDownKey(event);
break;
case 'PageUp':
this.onPageUpKey(event);
break;
case 'Enter':
this.onEnterKey(event);
break;
case 'Escape':
this.onEscapeKey(event);
break;
case 'Tab':
this.onTabKey(event);
break;
case 'Backspace':
this.onBackspaceKey(event);
break;
case 'ShiftLeft':
case 'ShiftRight':
//NOOP
break;
default:
break;
}
},
onInput(event) {
if (this.searchTimeout) {
clearTimeout(this.searchTimeout);
}
let query = event.target.value;
if (!this.multiple) {
this.updateModel(event, query);
}
if (query.length === 0) {
this.hide();
this.$emit('clear');
}
else {
if (query.length >= this.minLength) {
this.focusedOptionIndex = -1;
this.searchTimeout = setTimeout(() => {
this.search(event, query, 'input');
}, this.delay);
}
else {
this.hide();
}
}
},
onChange(event) {
if (this.forceSelection) {
let valid = false;
if (this.visibleOptions) {
const matchedValue = this.visibleOptions.find(option => this.isOptionMatched(option, event.target.value));
if (matchedValue !== undefined) {
valid = true;
!this.isSelected(matchedValue) && this.onOptionSelect(event, matchedValue);
}
}
if (!valid) {
this.$refs.focusInput.value = '';
this.$emit('clear');
!this.multiple && this.updateModel(event, null);
}
}
},
onMultipleContainerFocus() {
this.focused = true;
},
onMultipleContainerBlur() {
this.focusedMultipleOptionIndex = -1;
this.focused = false;
},
onMultipleContainerKeyDown(event) {
switch (event.code) {
case 'ArrowLeft':
this.onArrowLeftKeyOnMultiple(event);
break;
case 'ArrowRight':
this.onArrowRightKeyOnMultiple(event);
break;
case 'Backspace':
this.onBackspaceKeyOnMultiple(event);
break;
default:
break;
}
},
onContainerClick(event) {
if (this.disabled || this.searching || this.isInputClicked(event) || this.isDropdownClicked(event)) {
return;
}
if (!this.overlay || !this.overlay.contains(event.target)) {
this.$refs.focusInput.focus();
}
},
onDropdownClick(event) {
let query = undefined;
if (this.overlayVisible) {
this.hide(true);
}
else {
this.$refs.focusInput.focus();
query = this.$refs.focusInput.value;
if (this.dropdownMode === 'blank')
this.search(event, '', 'dropdown');
else if (this.dropdownMode === 'current')
this.search(event, query, 'dropdown');
}
this.$emit('dropdown-click', { originalEvent: event, query });
},
onOptionSelect(event, option) {
const value = this.getOptionValue(option);
if (this.multiple) {
this.$refs.focusInput.value = '';
if (!this.isSelected(option)) {
this.updateModel(event, [...(this.modelValue || []), value]);
}
}
else {
this.updateModel(event, value);
}
this.$emit('item-select', { originalEvent: event, value: option });
this.hide(true);
},
onOptionMouseMove(event, index) {
if (this.focusOnHover) {
this.changeFocusedOptionIndex(event, index);
}
},
onOverlayClick(event) {
OverlayEventBus.emit('overlay-click', {
originalEvent: event,
target: this.$el
});
},
onOverlayKeyDown(event) {
switch (event.code) {
case 'Escape':
this.onEscapeKey(event);
break;
default:
break;
}
},
onArrowDownKey(event) {
if (!this.overlayVisible) {
return;
}
const optionIndex = this.focusedOptionIndex !== -1 ? this.findNextOptionIndex(this.focusedOptionIndex) : this.findFirstFocusedOptionIndex();
this.changeFocusedOptionIndex(event, optionIndex);
event.preventDefault();
},
onArrowUpKey(event) {
if (!this.overlayVisible) {
return;
}
if (event.altKey) {
if (this.focusedOptionIndex !== -1) {
this.onOptionSelect(event, this.visibleOptions[this.focusedOptionIndex]);
}
this.overlayVisible && this.hide();
event.preventDefault();
}
else {
const optionIndex = this.focusedOptionIndex !== -1 ? this.findPrevOptionIndex(this.focusedOptionIndex) : this.findLastFocusedOptionIndex();
this.changeFocusedOptionIndex(event, optionIndex);
event.preventDefault();
}
},
onArrowLeftKey(event) {
const target = event.currentTarget;
this.focusedOptionIndex = -1;
if (this.multiple) {
if (ObjectUtils.isEmpty(target.value) && this.hasSelectedOption) {
this.$refs.multiContainer.focus();
this.focusedMultipleOptionIndex = this.modelValue.length;
}
else {
event.stopPropagation(); // To prevent onArrowLeftKeyOnMultiple method
}
}
},
onArrowRightKey(event) {
this.focusedOptionIndex = -1;
this.multiple && event.stopPropagation(); // To prevent onArrowRightKeyOnMultiple method
},
onHomeKey(event) {
event.currentTarget.setSelectionRange(0, 0);
this.focusedOptionIndex = -1;
event.preventDefault();
},
onEndKey(event) {
const target = event.currentTarget;
const len = target.value.length;
target.setSelectionRange(len, len);
this.focusedOptionIndex = -1;
event.preventDefault();
},
onPageUpKey(event) {
this.scrollInView(0);
event.preventDefault();
},
onPageDownKey(event) {
this.scrollInView(this.visibleOptions.length - 1);
event.preventDefault();
},
onEnterKey(event) {
if (!this.overlayVisible) {
this.onArrowDownKey(event);
}
else {
if (this.focusedOptionIndex !== -1) {
this.onOptionSelect(event, this.visibleOptions[this.focusedOptionIndex]);
}
this.hide();
}
event.preventDefault();
},
onEscapeKey(event) {
this.overlayVisible && this.hide(true);
event.preventDefault();
},
onTabKey(event) {
if (this.focusedOptionIndex !== -1) {
this.onOptionSelect(event, this.visibleOptions[this.focusedOptionIndex]);
}
this.overlayVisible && this.hide();
},
onBackspaceKey(event) {
if (this.multiple) {
if (ObjectUtils.isNotEmpty(this.modelValue) && !this.$refs.focusInput.value) {
const removedValue = this.modelValue[this.modelValue.length - 1];
const newValue = this.modelValue.slice(0, -1);
this.$emit('update:modelValue', newValue);
this.$emit('item-unselect', { originalEvent: event, value: removedValue });
}
event.stopPropagation(); // To prevent onBackspaceKeyOnMultiple method
}
},
onArrowLeftKeyOnMultiple() {
this.focusedMultipleOptionIndex = this.focusedMultipleOptionIndex < 1 ? 0 : this.focusedMultipleOptionIndex - 1;
},
onArrowRightKeyOnMultiple() {
this.focusedMultipleOptionIndex++;
if (this.focusedMultipleOptionIndex > (this.modelValue.length - 1)) {
this.focusedMultipleOptionIndex = -1;
this.$refs.focusInput.focus();
}
},
onBackspaceKeyOnMultiple(event) {
if (this.focusedMultipleOptionIndex !== -1) {
this.removeOption(event, this.focusedMultipleOptionIndex);
}
},
onOverlayEnter(el) {
ZIndexUtils.set('overlay', el, this.$primevue.config.zIndex.overlay);
this.alignOverlay();
},
onOverlayAfterEnter() {
this.bindOutsideClickListener();
this.bindScrollListener();
this.bindResizeListener();
this.$emit('show');
},
onOverlayLeave() {
this.unbindOutsideClickListener();
this.unbindScrollListener();
this.unbindResizeListener();
this.$emit('hide');
this.overlay = null;
},
onOverlayAfterLeave(el) {
ZIndexUtils.clear(el);
},
alignOverlay() {
let target = this.multiple ? this.$refs.multiContainer : this.$refs.focusInput;
if (this.appendTo === 'self') {
DomHandler.relativePosition(this.overlay, target);
}
else {
this.overlay.style.minWidth = DomHandler.getOuterWidth(target) + 'px';
DomHandler.absolutePosition(this.overlay, target);
}
},
bindOutsideClickListener() {
if (!this.outsideClickListener) {
this.outsideClickListener = (event) => {
if (this.overlayVisible && this.overlay && this.isOutsideClicked(event)) {
this.hide();
}
};
document.addEventListener('click', this.outsideClickListener);
}
},
unbindOutsideClickListener() {
if (this.outsideClickListener) {
document.removeEventListener('click', this.outsideClickListener);
this.outsideClickListener = null;
}
},
bindScrollListener() {
if (!this.scrollHandler) {
this.scrollHandler = new ConnectedOverlayScrollHandler(this.$refs.container, () => {
if (this.overlayVisible) {
this.hide();
}
});
}
this.scrollHandler.bindScrollListener();
},
unbindScrollListener() {
if (this.scrollHandler) {
this.scrollHandler.unbindScrollListener();
}
},
bindResizeListener() {
if (!this.resizeListener) {
this.resizeListener = () => {
if (this.overlayVisible && !DomHandler.isTouchDevice()) {
this.hide();
}
};
window.addEventListener('resize', this.resizeListener);
}
},
unbindResizeListener() {
if (this.resizeListener) {
window.removeEventListener('resize', this.resizeListener);
this.resizeListener = null;
}
},
isOutsideClicked(event) {
return !this.overlay.contains(event.target) && !this.isInputClicked(event) && !this.isDropdownClicked(event);
},
isInputClicked(event) {
if (this.multiple)
return event.target === this.$refs.multiContainer || this.$refs.multiContainer.contains(event.target);
else
return event.target === this.$refs.focusInput;
},
isDropdownClicked(event) {
return this.$refs.dropdownButton ? (event.target === this.$refs.dropdownButton || this.$refs.dropdownButton.$el.contains(event.target)) : false;
},
isOptionMatched(option, value) {
return this.isValidOption(option) && this.getOptionLabel(option).toLocaleLowerCase(this.searchLocale) === value.toLocaleLowerCase(this.searchLocale);
},
isValidOption(option) {
return option && !(this.isOptionDisabled(option) || this.isOptionGroup(option));
},
isValidSelectedOption(option) {
return this.isValidOption(option) && this.isSelected(option);
},
isSelected(option) {
return ObjectUtils.equals(this.modelValue, this.getOptionValue(option), 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;
},
findSelectedOptionIndex() {
return this.hasSelectedOption ? this.visibleOptions.findIndex(option => this.isValidSelectedOption(option)) : -1;
},
findFirstFocusedOptionIndex() {
const selectedIndex = this.findSelectedOptionIndex();
return selectedIndex < 0 ? this.findFirstOptionIndex() : selectedIndex;
},
findLastFocusedOptionIndex() {
const selectedIndex = this.findSelectedOptionIndex();
return selectedIndex < 0 ? this.findLastOptionIndex() : selectedIndex;
},
search(event, query, source) {
//allow empty string but not undefined or null
if (query === undefined || query === null) {
return;
}
//do not search blank values on input change
if (source === 'input' && query.trim().length === 0) {
return;
}
this.searching = true;
this.$emit('complete', { originalEvent: event, query });
},
removeOption(event, index) {
const removedOption = this.modelValue[index];
const value = this.modelValue.filter((_, i) => i !== index).map(option => this.getOptionValue(option));
this.updateModel(event, value);
this.$emit('item-unselect', { originalEvent: event, value: removedOption });
this.dirty = true;
this.$refs.focusInput.focus();
},
changeFocusedOptionIndex(event, index) {
if (this.focusedOptionIndex !== index) {
this.focusedOptionIndex = index;
this.scrollInView();
if (this.selectOnFocus || this.autoHighlight) {
this.updateModel(event, this.getOptionValue(this.visibleOptions[index]));
}
}
},
scrollInView(index = -1) {
const id = index !== -1 ? `${this.id}_${index}` : this.focusedOptionId;
const element = DomHandler.findSingle(this.list, `li[id="${id}"]`);
if (element) {
element.scrollIntoView && element.scrollIntoView({ block: 'nearest', inline: 'start' });
}
else if (!this.virtualScrollerDisabled) {
setTimeout(() => {
this.virtualScroller && this.virtualScroller.scrollToIndex(index !== -1 ? index : this.focusedOptionIndex);
}, 0);
}
},
autoUpdateModel() {
if ((this.selectOnFocus || this.autoHighlight) && 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;
}, []);
},
overlayRef(el) {
this.overlay = el;
},
listRef(el, contentRef) {
this.list = el;
contentRef && contentRef(el); // For VirtualScroller
},
virtualScrollerRef(el) {
this.virtualScroller = el;
}
},
computed: {
containerClass() {
return ['p-autocomplete p-component p-inputwrapper', {
'p-disabled': this.disabled,
'p-focus': this.focused,
'p-autocomplete-dd': this.dropdown,
'p-autocomplete-multiple': this.multiple,
'p-inputwrapper-filled': this.modelValue || ObjectUtils.isNotEmpty(this.inputValue),
'p-inputwrapper-focus': this.focused,
'p-overlay-open': this.overlayVisible
}];
},
inputStyleClass() {
return ['p-autocomplete-input p-inputtext p-component', this.inputClass, {
'p-autocomplete-dd-input': this.dropdown
}];
},
multiContainerClass() {
return ['p-autocomplete-multiple-container p-component p-inputtext'];
},
panelStyleClass() {
return ['p-autocomplete-panel p-component', this.panelClass, {
'p-input-filled': this.$primevue.config.inputStyle === 'filled',
'p-ripple-disabled': this.$primevue.config.ripple === false
}];
},
loadingIconClass() {
return ['p-autocomplete-loader pi-spin', this.loadingIcon];
},
visibleOptions() {
return this.optionGroupLabel ? this.flatOptions(this.suggestions) : (this.suggestions || []);
},
inputValue() {
if (this.modelValue) {
if (typeof this.modelValue === 'object') {
const label = this.getOptionLabel(this.modelValue);
return label != null ? label : this.modelValue;
}
else {
return this.modelValue;
}
}
else {
return '';
}
},
hasSelectedOption() {
return ObjectUtils.isNotEmpty(this.modelValue);
},
equalityKey() {
return this.dataKey; // TODO: The 'optionValue' properties can be added.
},
searchResultMessageText() {
return ObjectUtils.isNotEmpty(this.visibleOptions) && this.overlayVisible ? this.searchMessageText.replaceAll('{0}', this.visibleOptions.length) : this.emptySearchMessageText;
},
searchMessageText() {
return this.searchMessage || this.$primevue.config.locale.searchMessage || '';
},
emptySearchMessageText() {
return this.emptySearchMessage || this.$primevue.config.locale.emptySearchMessage || '';
},
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;
},
focusedMultipleOptionId() {
return this.focusedMultipleOptionIndex !== -1 ? `${this.id}_multiple_option_${this.focusedMultipleOptionIndex}` : null;
},
ariaSetSize() {
return this.visibleOptions.filter(option => !this.isOptionGroup(option)).length;
},
virtualScrollerDisabled() {
return !this.virtualScrollerOptions;
}
},
components: {
'Button': Button,
'VirtualScroller': VirtualScroller,
'Portal': Portal
},
directives: {
'ripple': Ripple
}
}
</script>
<style>
.p-autocomplete {
display: inline-flex;
position: relative;
}
.p-autocomplete-loader {
position: absolute;
top: 50%;
margin-top: -.5rem;
}
.p-autocomplete-dd .p-autocomplete-input {
flex: 1 1 auto;
width: 1%;
}
.p-autocomplete-dd .p-autocomplete-input,
.p-autocomplete-dd .p-autocomplete-multiple-container {
border-top-right-radius: 0;
border-bottom-right-radius: 0;
}
.p-autocomplete-dd .p-autocomplete-dropdown {
border-top-left-radius: 0;
border-bottom-left-radius: 0px;
}
.p-autocomplete .p-autocomplete-panel {
min-width: 100%;
}
.p-autocomplete-panel {
position: absolute;
overflow: auto;
top: 0;
left: 0;
}
.p-autocomplete-items {
margin: 0;
padding: 0;
list-style-type: none;
}
.p-autocomplete-item {
cursor: pointer;
white-space: nowrap;
position: relative;
overflow: hidden;
}
.p-autocomplete-multiple-container {
margin: 0;
padding: 0;
list-style-type: none;
cursor: text;
overflow: hidden;
display: flex;
align-items: center;
flex-wrap: wrap;
}
.p-autocomplete-token {
cursor: default;
display: inline-flex;
align-items: center;
flex: 0 0 auto;
}
.p-autocomplete-token-icon {
cursor: pointer;
}
.p-autocomplete-input-token {
flex: 1 1 auto;
display: inline-flex;
}
.p-autocomplete-input-token input {
border: 0 none;
outline: 0 none;
background-color: transparent;
margin: 0;
padding: 0;
box-shadow: none;
border-radius: 0;
width: 100%;
}
.p-fluid .p-autocomplete {
display: flex;
}
.p-fluid .p-autocomplete-dd .p-autocomplete-input {
width: 1%;
}
</style>