primeng
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PrimeNG is an open source UI library for Angular featuring a rich set of 80+ components, a theme designer, various theme alternatives such as Material, Bootstrap, Tailwind, premium templates and professional support. In addition, it integrates with PrimeB
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JavaScript
import * as i1 from '@angular/common';
import { CommonModule } from '@angular/common';
import * as i0 from '@angular/core';
import { Injectable, forwardRef, EventEmitter, inject, booleanAttribute, numberAttribute, Output, Input, Component, input, computed, signal, effect, ContentChildren, ContentChild, ViewChild, ViewEncapsulation, ChangeDetectionStrategy, NgModule } from '@angular/core';
import { NG_VALUE_ACCESSOR } from '@angular/forms';
import { deepEquals, isNotEmpty, isEmpty, uuid, findSingle, scrollInView, equals, resolveFieldData, focus, isPrintableCharacter, findLastIndex, getFirstFocusableElement, getLastFocusableElement, getFocusableElements } from '@primeuix/utils';
import * as i2 from 'primeng/api';
import { SharedModule, TranslationKeys, PrimeTemplate } from 'primeng/api';
import { AutoFocus } from 'primeng/autofocus';
import { BaseComponent } from 'primeng/basecomponent';
import { BaseInput } from 'primeng/baseinput';
import { unblockBodyScroll } from 'primeng/dom';
import { IconField } from 'primeng/iconfield';
import { CheckIcon, BlankIcon, TimesIcon, ChevronDownIcon, SearchIcon } from 'primeng/icons';
import { InputIcon } from 'primeng/inputicon';
import { InputText } from 'primeng/inputtext';
import { Overlay } from 'primeng/overlay';
import { Ripple } from 'primeng/ripple';
import { Scroller } from 'primeng/scroller';
import { Tooltip } from 'primeng/tooltip';
import { style } from '@primeuix/styles/select';
import { BaseStyle } from 'primeng/base';
const theme = /*css*/ `
${style}
/* For PrimeNG */
.p-select-label.p-placeholder {
color: dt('select.placeholder.color');
}
.p-select.ng-invalid.ng-dirty {
border-color: dt('select.invalid.border.color');
}
.p-dropdown.ng-invalid.ng-dirty .p-dropdown-label.p-placeholder,
.p-select.ng-invalid.ng-dirty .p-select-label.p-placeholder {
color: dt('select.invalid.placeholder.color');
}
`;
const classes = {
root: ({ instance }) => [
'p-select p-component p-inputwrapper',
{
'p-disabled': instance.$disabled(),
'p-variant-filled': instance.$variant() === 'filled',
'p-focus': instance.focused,
'p-invalid': instance.invalid(),
'p-inputwrapper-filled': instance.$filled(),
'p-inputwrapper-focus': instance.focused || instance.overlayVisible,
'p-select-open': instance.overlayVisible,
'p-select-fluid': instance.hasFluid,
'p-select-sm p-inputfield-sm': instance.size() === 'small',
'p-select-lg p-inputfield-lg': instance.size() === 'large'
}
],
label: ({ instance }) => [
'p-select-label',
{
'p-placeholder': instance.placeholder() && instance.label() === instance.placeholder(),
'p-select-label-empty': !instance.editable && !instance.selectedItemTemplate && (instance.label() === undefined || instance.label() === null || instance.label() === 'p-emptylabel' || instance.label().length === 0)
}
],
clearIcon: 'p-select-clear-icon',
dropdown: 'p-select-dropdown',
loadingIcon: 'p-select-loading-icon',
dropdownIcon: 'p-select-dropdown-icon',
overlay: 'p-select-overlay p-component-overlay p-component',
header: 'p-select-header',
pcFilter: 'p-select-filter',
listContainer: 'p-select-list-container',
list: 'p-select-list',
optionGroup: 'p-select-option-group',
optionGroupLabel: 'p-select-option-group-label',
option: ({ instance }) => [
'p-select-option',
{
'p-select-option-selected': instance.selected && !instance.checkmark,
'p-disabled': instance.disabled,
'p-focus': instance.focused
}
],
optionLabel: 'p-select-option-label',
optionCheckIcon: 'p-select-option-check-icon',
optionBlankIcon: 'p-select-option-blank-icon',
emptyMessage: 'p-select-empty-message'
};
class SelectStyle extends BaseStyle {
name = 'select';
theme = theme;
classes = classes;
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "20.1.3", ngImport: i0, type: SelectStyle, deps: null, target: i0.ɵɵFactoryTarget.Injectable });
static ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "20.1.3", ngImport: i0, type: SelectStyle });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "20.1.3", ngImport: i0, type: SelectStyle, decorators: [{
type: Injectable
}] });
/**
*
* Select also known as Select, is used to choose an item from a collection of options.
*
* [Live Demo](https://www.primeng.org/select/)
*
* @module selectstyle
*
*/
var SelectClasses;
(function (SelectClasses) {
/**
* Class name of the root element
*/
SelectClasses["root"] = "p-select";
/**
* Class name of the label element
*/
SelectClasses["label"] = "p-select-label";
/**
* Class name of the clear icon element
*/
SelectClasses["clearIcon"] = "p-select-clear-icon";
/**
* Class name of the dropdown element
*/
SelectClasses["dropdown"] = "p-select-dropdown";
/**
* Class name of the loadingicon element
*/
SelectClasses["loadingIcon"] = "p-select-loading-icon";
/**
* Class name of the dropdown icon element
*/
SelectClasses["dropdownIcon"] = "p-select-dropdown-icon";
/**
* Class name of the overlay element
*/
SelectClasses["overlay"] = "p-select-overlay";
/**
* Class name of the header element
*/
SelectClasses["header"] = "p-select-header";
/**
* Class name of the filter element
*/
SelectClasses["pcFilter"] = "p-select-filter";
/**
* Class name of the list container element
*/
SelectClasses["listContainer"] = "p-select-list-container";
/**
* Class name of the list element
*/
SelectClasses["list"] = "p-select-list";
/**
* Class name of the option group element
*/
SelectClasses["optionGroup"] = "p-select-option-group";
/**
* Class name of the option group label element
*/
SelectClasses["optionGroupLabel"] = "p-select-option-group-label";
/**
* Class name of the option element
*/
SelectClasses["option"] = "p-select-option";
/**
* Class name of the option label element
*/
SelectClasses["optionLabel"] = "p-select-option-label";
/**
* Class name of the option check icon element
*/
SelectClasses["optionCheckIcon"] = "p-select-option-check-icon";
/**
* Class name of the option blank icon element
*/
SelectClasses["optionBlankIcon"] = "p-select-option-blank-icon";
/**
* Class name of the empty message element
*/
SelectClasses["emptyMessage"] = "p-select-empty-message";
})(SelectClasses || (SelectClasses = {}));
const SELECT_VALUE_ACCESSOR = {
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(() => Select),
multi: true
};
class SelectItem extends BaseComponent {
id;
option;
selected;
focused;
label;
disabled;
visible;
itemSize;
ariaPosInset;
ariaSetSize;
template;
checkmark;
onClick = new EventEmitter();
onMouseEnter = new EventEmitter();
_componentStyle = inject(SelectStyle);
onOptionClick(event) {
this.onClick.emit(event);
}
onOptionMouseEnter(event) {
this.onMouseEnter.emit(event);
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "20.1.3", ngImport: i0, type: SelectItem, deps: null, target: i0.ɵɵFactoryTarget.Component });
static ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "16.1.0", version: "20.1.3", type: SelectItem, isStandalone: true, selector: "p-selectItem", inputs: { id: "id", option: "option", selected: ["selected", "selected", booleanAttribute], focused: ["focused", "focused", booleanAttribute], label: "label", disabled: ["disabled", "disabled", booleanAttribute], visible: ["visible", "visible", booleanAttribute], itemSize: ["itemSize", "itemSize", numberAttribute], ariaPosInset: "ariaPosInset", ariaSetSize: "ariaSetSize", template: "template", checkmark: ["checkmark", "checkmark", booleanAttribute] }, outputs: { onClick: "onClick", onMouseEnter: "onMouseEnter" }, providers: [SelectStyle], usesInheritance: true, ngImport: i0, template: `
<li
[id]="id"
(click)="onOptionClick($event)"
(mouseenter)="onOptionMouseEnter($event)"
role="option"
pRipple
[attr.aria-label]="label"
[attr.aria-setsize]="ariaSetSize"
[attr.aria-posinset]="ariaPosInset"
[attr.aria-selected]="selected"
[attr.data-p-focused]="focused"
[attr.data-p-highlight]="selected"
[attr.data-p-disabled]="disabled"
[ngStyle]="{ height: itemSize + 'px' }"
[class]="cx('option')"
>
<ng-container *ngIf="checkmark">
<svg data-p-icon="check" *ngIf="selected" [class]="cx('optionCheckIcon')" />
<svg data-p-icon="blank" *ngIf="!selected" [class]="cx('optionBlankIcon')" />
</ng-container>
<span *ngIf="!template">{{ label ?? 'empty' }}</span>
<ng-container *ngTemplateOutlet="template; context: { $implicit: option }"></ng-container>
</li>
`, isInline: true, dependencies: [{ kind: "ngmodule", type: CommonModule }, { kind: "directive", type: i1.NgIf, selector: "[ngIf]", inputs: ["ngIf", "ngIfThen", "ngIfElse"] }, { kind: "directive", type: i1.NgTemplateOutlet, selector: "[ngTemplateOutlet]", inputs: ["ngTemplateOutletContext", "ngTemplateOutlet", "ngTemplateOutletInjector"] }, { kind: "directive", type: i1.NgStyle, selector: "[ngStyle]", inputs: ["ngStyle"] }, { kind: "ngmodule", type: SharedModule }, { kind: "directive", type: Ripple, selector: "[pRipple]" }, { kind: "component", type: CheckIcon, selector: "[data-p-icon=\"check\"]" }, { kind: "component", type: BlankIcon, selector: "[data-p-icon=\"blank\"]" }] });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "20.1.3", ngImport: i0, type: SelectItem, decorators: [{
type: Component,
args: [{
selector: 'p-selectItem',
standalone: true,
imports: [CommonModule, SharedModule, Ripple, CheckIcon, BlankIcon],
template: `
<li
[id]="id"
(click)="onOptionClick($event)"
(mouseenter)="onOptionMouseEnter($event)"
role="option"
pRipple
[attr.aria-label]="label"
[attr.aria-setsize]="ariaSetSize"
[attr.aria-posinset]="ariaPosInset"
[attr.aria-selected]="selected"
[attr.data-p-focused]="focused"
[attr.data-p-highlight]="selected"
[attr.data-p-disabled]="disabled"
[ngStyle]="{ height: itemSize + 'px' }"
[class]="cx('option')"
>
<ng-container *ngIf="checkmark">
<svg data-p-icon="check" *ngIf="selected" [class]="cx('optionCheckIcon')" />
<svg data-p-icon="blank" *ngIf="!selected" [class]="cx('optionBlankIcon')" />
</ng-container>
<span *ngIf="!template">{{ label ?? 'empty' }}</span>
<ng-container *ngTemplateOutlet="template; context: { $implicit: option }"></ng-container>
</li>
`,
providers: [SelectStyle]
}]
}], propDecorators: { id: [{
type: Input
}], option: [{
type: Input
}], selected: [{
type: Input,
args: [{ transform: booleanAttribute }]
}], focused: [{
type: Input,
args: [{ transform: booleanAttribute }]
}], label: [{
type: Input
}], disabled: [{
type: Input,
args: [{ transform: booleanAttribute }]
}], visible: [{
type: Input,
args: [{ transform: booleanAttribute }]
}], itemSize: [{
type: Input,
args: [{ transform: numberAttribute }]
}], ariaPosInset: [{
type: Input
}], ariaSetSize: [{
type: Input
}], template: [{
type: Input
}], checkmark: [{
type: Input,
args: [{ transform: booleanAttribute }]
}], onClick: [{
type: Output
}], onMouseEnter: [{
type: Output
}] } });
/**
* Select is used to choose an item from a collection of options.
* @group Components
*/
class Select extends BaseInput {
zone;
filterService;
/**
* Unique identifier of the component
* @group Props
*/
id;
/**
* Height of the viewport in pixels, a scrollbar is defined if height of list exceeds this value.
* @group Props
*/
scrollHeight = '200px';
/**
* When specified, displays an input field to filter the items on keyup.
* @group Props
*/
filter;
/**
* Inline style of the overlay panel element.
* @group Props
*/
panelStyle;
/**
* Style class of the element.
* @deprecated since v20.0.0, use `class` instead.
* @group Props
*/
styleClass;
/**
* Style class of the overlay panel element.
* @group Props
*/
panelStyleClass;
/**
* When present, it specifies that the component cannot be edited.
* @group Props
*/
readonly;
/**
* When present, custom value instead of predefined options can be entered using the editable input field.
* @group Props
*/
editable;
/**
* Index of the element in tabbing order.
* @group Props
*/
tabindex = 0;
/**
* Default text to display when no option is selected.
* @group Props
*/
set placeholder(val) {
this._placeholder.set(val);
}
get placeholder() {
return this._placeholder.asReadonly();
}
/**
* Icon to display in loading state.
* @group Props
*/
loadingIcon;
/**
* Placeholder text to show when filter input is empty.
* @group Props
*/
filterPlaceholder;
/**
* Locale to use in filtering. The default locale is the host environment's current locale.
* @group Props
*/
filterLocale;
/**
* Identifier of the accessible input element.
* @group Props
*/
inputId;
/**
* A property to uniquely identify a value in options.
* @group Props
*/
dataKey;
/**
* When filtering is enabled, filterBy decides which field or fields (comma separated) to search against.
* @group Props
*/
filterBy;
/**
* Fields used when filtering the options, defaults to optionLabel.
* @group Props
*/
filterFields;
/**
* When present, it specifies that the component should automatically get focus on load.
* @group Props
*/
autofocus;
/**
* Clears the filter value when hiding the select.
* @group Props
*/
resetFilterOnHide = false;
/**
* Whether the selected option will be shown with a check mark.
* @group Props
*/
checkmark = false;
/**
* Icon class of the select icon.
* @group Props
*/
dropdownIcon;
/**
* Whether the select is in loading state.
* @group Props
*/
loading = false;
/**
* Name of the label field of an option.
* @group Props
*/
optionLabel;
/**
* Name of the value field of an option.
* @group Props
*/
optionValue;
/**
* Name of the disabled field of an option.
* @group Props
*/
optionDisabled;
/**
* Name of the label field of an option group.
* @group Props
*/
optionGroupLabel = 'label';
/**
* Name of the options field of an option group.
* @group Props
*/
optionGroupChildren = 'items';
/**
* Whether to display options as grouped when nested options are provided.
* @group Props
*/
group;
/**
* When enabled, a clear icon is displayed to clear the value.
* @group Props
*/
showClear;
/**
* Text to display when filtering does not return any results. Defaults to global value in i18n translation configuration.
* @group Props
*/
emptyFilterMessage = '';
/**
* Text to display when there is no data. Defaults to global value in i18n translation configuration.
* @group Props
*/
emptyMessage = '';
/**
* Defines if data is loaded and interacted with in lazy manner.
* @group Props
*/
lazy = false;
/**
* Whether the data should be loaded on demand during scroll.
* @group Props
*/
virtualScroll;
/**
* Height of an item in the list for VirtualScrolling.
* @group Props
*/
virtualScrollItemSize;
/**
* Whether to use the scroller feature. The properties of scroller component can be used like an object in it.
* @group Props
*/
virtualScrollOptions;
/**
* Whether to use overlay API feature. The properties of overlay API can be used like an object in it.
* @group Props
*/
overlayOptions;
/**
* Defines a string that labels the filter input.
* @group Props
*/
ariaFilterLabel;
/**
* Used to define a aria label attribute the current element.
* @group Props
*/
ariaLabel;
/**
* Establishes relationships between the component and label(s) where its value should be one or more element IDs.
* @group Props
*/
ariaLabelledBy;
/**
* Defines how the items are filtered.
* @group Props
*/
filterMatchMode = 'contains';
/**
* Advisory information to display in a tooltip on hover.
* @group Props
*/
tooltip = '';
/**
* Position of the tooltip.
* @group Props
*/
tooltipPosition = 'right';
/**
* Type of CSS position.
* @group Props
*/
tooltipPositionStyle = 'absolute';
/**
* Style class of the tooltip.
* @group Props
*/
tooltipStyleClass;
/**
* Fields used when filtering the options, defaults to optionLabel.
* @group Props
*/
focusOnHover = true;
/**
* Determines if the option will be selected on focus.
* @group Props
*/
selectOnFocus = false;
/**
* Whether to focus on the first visible or selected element when the overlay panel is shown.
* @group Props
*/
autoOptionFocus = false;
/**
* Applies focus to the filter element when the overlay is shown.
* @group Props
*/
autofocusFilter = true;
/**
* When specified, filter displays with this value.
* @group Props
*/
get filterValue() {
return this._filterValue();
}
set filterValue(val) {
setTimeout(() => {
this._filterValue.set(val);
});
}
/**
* An array of objects to display as the available options.
* @group Props
*/
get options() {
const options = this._options();
return options;
}
set options(val) {
if (!deepEquals(val, this._options())) {
this._options.set(val);
}
}
/**
* Target element to attach the overlay, valid values are "body" or a local ng-template variable of another element (note: use binding with brackets for template variables, e.g. [appendTo]="mydiv" for a div element having #mydiv as variable name).
* @defaultValue 'self'
* @group Props
*/
appendTo = input(undefined, ...(ngDevMode ? [{ debugName: "appendTo" }] : []));
/**
* Callback to invoke when value of select changes.
* @param {SelectChangeEvent} event - custom change event.
* @group Emits
*/
onChange = new EventEmitter();
/**
* Callback to invoke when data is filtered.
* @param {SelectFilterEvent} event - custom filter event.
* @group Emits
*/
onFilter = new EventEmitter();
/**
* Callback to invoke when select gets focus.
* @param {Event} event - Browser event.
* @group Emits
*/
onFocus = new EventEmitter();
/**
* Callback to invoke when select loses focus.
* @param {Event} event - Browser event.
* @group Emits
*/
onBlur = new EventEmitter();
/**
* Callback to invoke when component is clicked.
* @param {MouseEvent} event - Mouse event.
* @group Emits
*/
onClick = new EventEmitter();
/**
* Callback to invoke when select overlay gets visible.
* @param {AnimationEvent} event - Animation event.
* @group Emits
*/
onShow = new EventEmitter();
/**
* Callback to invoke when select overlay gets hidden.
* @param {AnimationEvent} event - Animation event.
* @group Emits
*/
onHide = new EventEmitter();
/**
* Callback to invoke when select clears the value.
* @param {Event} event - Browser event.
* @group Emits
*/
onClear = new EventEmitter();
/**
* Callback to invoke in lazy mode to load new data.
* @param {SelectLazyLoadEvent} event - Lazy load event.
* @group Emits
*/
onLazyLoad = new EventEmitter();
_componentStyle = inject(SelectStyle);
filterViewChild;
focusInputViewChild;
editableInputViewChild;
itemsViewChild;
scroller;
overlayViewChild;
firstHiddenFocusableElementOnOverlay;
lastHiddenFocusableElementOnOverlay;
itemsWrapper;
$appendTo = computed(() => this.appendTo() || this.config.overlayAppendTo(), ...(ngDevMode ? [{ debugName: "$appendTo" }] : []));
/**
* Custom item template.
* @group Templates
*/
itemTemplate;
/**
* Custom group template.
* @group Templates
*/
groupTemplate;
/**
* Custom loader template.
* @group Templates
*/
loaderTemplate;
/**
* Custom selected item template.
* @group Templates
*/
selectedItemTemplate;
/**
* Custom header template.
* @group Templates
*/
headerTemplate;
/**
* Custom filter template.
* @group Templates
*/
filterTemplate;
/**
* Custom footer template.
* @group Templates
*/
footerTemplate;
/**
* Custom empty filter template.
* @group Templates
*/
emptyFilterTemplate;
/**
* Custom empty template.
* @group Templates
*/
emptyTemplate;
/**
* Custom dropdown icon template.
* @group Templates
*/
dropdownIconTemplate;
/**
* Custom loading icon template.
* @group Templates
*/
loadingIconTemplate;
/**
* Custom clear icon template.
* @group Templates
*/
clearIconTemplate;
/**
* Custom filter icon template.
* @group Templates
*/
filterIconTemplate;
/**
* Custom on icon template.
* @group Templates
*/
onIconTemplate;
/**
* Custom off icon template.
* @group Templates
*/
offIconTemplate;
/**
* Custom cancel icon template.
* @group Templates
*/
cancelIconTemplate;
templates;
_itemTemplate;
_selectedItemTemplate;
_headerTemplate;
_filterTemplate;
_footerTemplate;
_emptyFilterTemplate;
_emptyTemplate;
_groupTemplate;
_loaderTemplate;
_dropdownIconTemplate;
_loadingIconTemplate;
_clearIconTemplate;
_filterIconTemplate;
_cancelIconTemplate;
_onIconTemplate;
_offIconTemplate;
filterOptions;
_options = signal(null, ...(ngDevMode ? [{ debugName: "_options" }] : []));
_placeholder = signal(undefined, ...(ngDevMode ? [{ debugName: "_placeholder" }] : []));
value;
hover;
focused;
overlayVisible;
optionsChanged;
panel;
dimensionsUpdated;
hoveredItem;
selectedOptionUpdated;
_filterValue = signal(null, ...(ngDevMode ? [{ debugName: "_filterValue" }] : []));
searchValue;
searchIndex;
searchTimeout;
previousSearchChar;
currentSearchChar;
preventModelTouched;
focusedOptionIndex = signal(-1, ...(ngDevMode ? [{ debugName: "focusedOptionIndex" }] : []));
labelId;
listId;
clicked = signal(false, ...(ngDevMode ? [{ debugName: "clicked" }] : []));
get emptyMessageLabel() {
return this.emptyMessage || this.config.getTranslation(TranslationKeys.EMPTY_MESSAGE);
}
get emptyFilterMessageLabel() {
return this.emptyFilterMessage || this.config.getTranslation(TranslationKeys.EMPTY_FILTER_MESSAGE);
}
get isVisibleClearIcon() {
return this.modelValue() != null && this.hasSelectedOption() && this.showClear && !this.$disabled();
}
get listLabel() {
return this.config.getTranslation(TranslationKeys.ARIA)['listLabel'];
}
get focusedOptionId() {
return this.focusedOptionIndex() !== -1 ? `${this.id}_${this.focusedOptionIndex()}` : null;
}
visibleOptions = computed(() => {
const options = this.getAllVisibleAndNonVisibleOptions();
if (this._filterValue()) {
const _filterBy = this.filterBy || this.optionLabel;
const filteredOptions = !_filterBy && !this.filterFields && !this.optionValue
? this.options.filter((option) => {
if (option.label) {
return option.label.toString().toLowerCase().indexOf(this._filterValue().toLowerCase().trim()) !== -1;
}
return option.toString().toLowerCase().indexOf(this._filterValue().toLowerCase().trim()) !== -1;
})
: this.filterService.filter(options, this.searchFields(), this._filterValue().trim(), this.filterMatchMode, this.filterLocale);
if (this.group) {
const optionGroups = this.options || [];
const filtered = [];
optionGroups.forEach((group) => {
const groupChildren = this.getOptionGroupChildren(group);
const filteredItems = groupChildren.filter((item) => filteredOptions.includes(item));
if (filteredItems.length > 0)
filtered.push({
...group,
[typeof this.optionGroupChildren === 'string' ? this.optionGroupChildren : 'items']: [...filteredItems]
});
});
return this.flatOptions(filtered);
}
return filteredOptions;
}
return options;
}, ...(ngDevMode ? [{ debugName: "visibleOptions" }] : []));
label = computed(() => {
// use getAllVisibleAndNonVisibleOptions verses just visible options
// this will find the selected option whether or not the user is currently filtering because the filtered (i.e. visible) options, are a subset of all the options
const options = this.getAllVisibleAndNonVisibleOptions();
// use isOptionEqualsModelValue for the use case where the dropdown is initalized with a disabled option
const selectedOptionIndex = options.findIndex((option) => this.isOptionValueEqualsModelValue(option));
return selectedOptionIndex !== -1 ? this.getOptionLabel(options[selectedOptionIndex]) : this.placeholder() || 'p-emptylabel';
}, ...(ngDevMode ? [{ debugName: "label" }] : []));
selectedOption;
constructor(zone, filterService) {
super();
this.zone = zone;
this.filterService = filterService;
effect(() => {
const modelValue = this.modelValue();
const visibleOptions = this.visibleOptions();
if (visibleOptions && isNotEmpty(visibleOptions)) {
const selectedOptionIndex = this.findSelectedOptionIndex();
if (selectedOptionIndex !== -1 || modelValue === undefined || (typeof modelValue === 'string' && modelValue.length === 0) || this.isModelValueNotSet() || this.editable) {
this.selectedOption = visibleOptions[selectedOptionIndex];
}
}
if (isEmpty(visibleOptions) && (modelValue === undefined || this.isModelValueNotSet()) && isNotEmpty(this.selectedOption)) {
this.selectedOption = null;
}
if (modelValue !== undefined && this.editable) {
this.updateEditableLabel();
}
this.cd.markForCheck();
});
}
isModelValueNotSet() {
return this.modelValue() === null && !this.isOptionValueEqualsModelValue(this.selectedOption);
}
getAllVisibleAndNonVisibleOptions() {
return this.group ? this.flatOptions(this.options) : this.options || [];
}
ngOnInit() {
super.ngOnInit();
this.id = this.id || uuid('pn_id_');
this.autoUpdateModel();
if (this.filterBy) {
this.filterOptions = {
filter: (value) => this.onFilterInputChange(value),
reset: () => this.resetFilter()
};
}
}
ngAfterContentInit() {
this.templates.forEach((item) => {
switch (item.getType()) {
case 'item':
this._itemTemplate = item.template;
break;
case 'selectedItem':
this._selectedItemTemplate = item.template;
break;
case 'header':
this._headerTemplate = item.template;
break;
case 'filter':
this._filterTemplate = item.template;
break;
case 'footer':
this._footerTemplate = item.template;
break;
case 'emptyfilter':
this._emptyFilterTemplate = item.template;
break;
case 'empty':
this._emptyTemplate = item.template;
break;
case 'group':
this._groupTemplate = item.template;
break;
case 'loader':
this._loaderTemplate = item.template;
break;
case 'dropdownicon':
this._dropdownIconTemplate = item.template;
break;
case 'loadingicon':
this._loadingIconTemplate = item.template;
break;
case 'clearicon':
this._clearIconTemplate = item.template;
break;
case 'filtericon':
this._filterIconTemplate = item.template;
break;
case 'cancelicon':
this._cancelIconTemplate = item.template;
break;
case 'onicon':
this._onIconTemplate = item.template;
break;
case 'officon':
this._offIconTemplate = item.template;
break;
default:
this._itemTemplate = item.template;
break;
}
});
}
ngAfterViewChecked() {
if (this.optionsChanged && this.overlayVisible) {
this.optionsChanged = false;
this.zone.runOutsideAngular(() => {
setTimeout(() => {
if (this.overlayViewChild) {
this.overlayViewChild.alignOverlay();
}
}, 1);
});
}
if (this.selectedOptionUpdated && this.itemsWrapper) {
let selectedItem = findSingle(this.overlayViewChild?.overlayViewChild?.nativeElement, 'li.p-select-option-selected');
if (selectedItem) {
scrollInView(this.itemsWrapper, selectedItem);
}
this.selectedOptionUpdated = false;
}
}
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;
}, []);
}
autoUpdateModel() {
if (this.selectOnFocus && this.autoOptionFocus && !this.hasSelectedOption()) {
this.focusedOptionIndex.set(this.findFirstFocusedOptionIndex());
this.onOptionSelect(null, this.visibleOptions()[this.focusedOptionIndex()], false);
}
}
onOptionSelect(event, option, isHide = true, preventChange = false) {
if (!this.isSelected(option)) {
const value = this.getOptionValue(option);
this.updateModel(value, event);
this.focusedOptionIndex.set(this.findSelectedOptionIndex());
preventChange === false && this.onChange.emit({ originalEvent: event, value: value });
}
if (isHide) {
this.hide(true);
}
}
onOptionMouseEnter(event, index) {
if (this.focusOnHover) {
this.changeFocusedOptionIndex(event, index);
}
}
updateModel(value, event) {
this.value = value;
this.onModelChange(value);
this.writeModelValue(value);
this.selectedOptionUpdated = true;
}
allowModelChange() {
return !!this.modelValue() && !this.placeholder() && (this.modelValue() === undefined || this.modelValue() === null) && !this.editable && this.options && this.options.length;
}
isSelected(option) {
return this.isOptionValueEqualsModelValue(option);
}
isOptionValueEqualsModelValue(option) {
return this.isValidOption(option) && equals(this.modelValue(), this.getOptionValue(option), this.equalityKey());
}
ngAfterViewInit() {
super.ngAfterViewInit();
if (this.editable) {
this.updateEditableLabel();
}
this.updatePlaceHolderForFloatingLabel();
}
updatePlaceHolderForFloatingLabel() {
const parentElement = this.el.nativeElement.parentElement;
const isInFloatingLabel = parentElement?.classList.contains('p-float-label');
if (parentElement && isInFloatingLabel && !this.selectedOption) {
const label = parentElement.querySelector('label');
if (label) {
this._placeholder.set(label.textContent);
}
}
}
updateEditableLabel() {
if (this.editableInputViewChild) {
this.editableInputViewChild.nativeElement.value = this.getOptionLabel(this.selectedOption) || this.modelValue() || '';
}
}
clearEditableLabel() {
if (this.editableInputViewChild) {
this.editableInputViewChild.nativeElement.value = '';
}
}
getOptionIndex(index, scrollerOptions) {
return this.virtualScrollerDisabled ? index : scrollerOptions && scrollerOptions.getItemOptions(index)['index'];
}
getOptionLabel(option) {
return this.optionLabel !== undefined && this.optionLabel !== null ? resolveFieldData(option, this.optionLabel) : option && option.label !== undefined ? option.label : option;
}
getOptionValue(option) {
return this.optionValue && this.optionValue !== null ? resolveFieldData(option, this.optionValue) : !this.optionLabel && option && option.value !== undefined ? option.value : option;
}
isSelectedOptionEmpty() {
return isEmpty(this.selectedOption);
}
isOptionDisabled(option) {
if (this.getOptionValue(this.modelValue()) === this.getOptionValue(option) || (this.getOptionLabel(this.modelValue() === this.getOptionLabel(option)) && option.disabled === false)) {
return false;
}
else {
return this.optionDisabled ? resolveFieldData(option, this.optionDisabled) : option && option.disabled !== undefined ? option.disabled : false;
}
}
getOptionGroupLabel(optionGroup) {
return this.optionGroupLabel !== undefined && this.optionGroupLabel !== null ? resolveFieldData(optionGroup, this.optionGroupLabel) : optionGroup && optionGroup.label !== undefined ? optionGroup.label : optionGroup;
}
getOptionGroupChildren(optionGroup) {
return this.optionGroupChildren !== undefined && this.optionGroupChildren !== null ? resolveFieldData(optionGroup, this.optionGroupChildren) : optionGroup.items;
}
getAriaPosInset(index) {
return ((this.optionGroupLabel
? index -
this.visibleOptions()
.slice(0, index)
.filter((option) => this.isOptionGroup(option)).length
: index) + 1);
}
get ariaSetSize() {
return this.visibleOptions().filter((option) => !this.isOptionGroup(option)).length;
}
/**
* Callback to invoke on filter reset.
* @group Method
*/
resetFilter() {
this._filterValue.set(null);
if (this.filterViewChild && this.filterViewChild.nativeElement) {
this.filterViewChild.nativeElement.value = '';
}
}
onContainerClick(event) {
if (this.$disabled() || this.readonly || this.loading) {
return;
}
this.focusInputViewChild?.nativeElement.focus({ preventScroll: true });
if (event.target.tagName === 'INPUT' || event.target.getAttribute('data-pc-section') === 'clearicon' || event.target.closest('[data-pc-section="clearicon"]')) {
return;
}
else if (!this.overlayViewChild || !this.overlayViewChild.el.nativeElement.contains(event.target)) {
this.overlayVisible ? this.hide(true) : this.show(true);
}
this.onClick.emit(event);
this.clicked.set(true);
this.cd.detectChanges();
}
isEmpty() {
return !this._options() || (this.visibleOptions() && this.visibleOptions().length === 0);
}
onEditableInput(event) {
const value = event.target.value;
this.searchValue = '';
const matched = this.searchOptions(event, value);
!matched && this.focusedOptionIndex.set(-1);
this.onModelChange(value);
this.updateModel(value || null, event);
setTimeout(() => {
this.onChange.emit({ originalEvent: event, value: value });
}, 1);
!this.overlayVisible && isNotEmpty(value) && this.show();
}
/**
* Displays the panel.
* @group Method
*/
show(isFocus) {
this.overlayVisible = true;
this.focusedOptionIndex.set(this.focusedOptionIndex() !== -1 ? this.focusedOptionIndex() : this.autoOptionFocus ? this.findFirstFocusedOptionIndex() : this.editable ? -1 : this.findSelectedOptionIndex());
if (isFocus) {
focus(this.focusInputViewChild?.nativeElement);
}
this.cd.markForCheck();
}
onOverlayAnimationStart(event) {
if (event.toState === 'visible') {
this.itemsWrapper = findSingle(this.overlayViewChild?.overlayViewChild?.nativeElement, this.virtualScroll ? '.p-scroller' : '.p-select-list-container');
this.virtualScroll && this.scroller?.setContentEl(this.itemsViewChild?.nativeElement);
if (this.options && this.options.length) {
if (this.virtualScroll) {
const selectedIndex = this.modelValue() ? this.focusedOptionIndex() : -1;
if (selectedIndex !== -1) {
this.scroller?.scrollToIndex(selectedIndex);
}
}
else {
let selectedListItem = findSingle(this.itemsWrapper, '.p-select-option.p-select-option-selected');
if (selectedListItem) {
selectedListItem.scrollIntoView({ block: 'nearest', inline: 'nearest' });
}
}
}
if (this.filterViewChild && this.filterViewChild.nativeElement) {
this.preventModelTouched = true;
if (this.autofocusFilter && !this.editable) {
this.filterViewChild.nativeElement.focus();
}
}
this.onShow.emit(event);
}
if (event.toState === 'void') {
this.itemsWrapper = null;
this.onModelTouched();
this.onHide.emit(event);
}
}
/**
* Hides the panel.
* @group Method
*/
hide(isFocus) {
this.overlayVisible = false;
this.focusedOptionIndex.set(-1);
this.clicked.set(false);
this.searchValue = '';
if (this.overlayOptions?.mode === 'modal') {
unblockBodyScroll();
}
if (this.filter && this.resetFilterOnHide) {
this.resetFilter();
}
if (isFocus) {
if (this.focusInputViewChild) {
focus(this.focusInputViewChild?.nativeElement);
}
if (this.editable && this.editableInputViewChild) {
focus(this.editableInputViewChild?.nativeElement);
}
}
this.cd.markForCheck();
}
onInputFocus(event) {
if (this.$disabled()) {
// For ScreenReaders
return;
}
this.focused = true;
const focusedOptionIndex = this.focusedOptionIndex() !== -1 ? this.focusedOptionIndex() : this.overlayVisible && this.autoOptionFocus ? this.findFirstFocusedOptionIndex() : -1;
this.focusedOptionIndex.set(focusedOptionIndex);
this.overlayVisible && this.scrollInView(this.focusedOptionIndex());
this.onFocus.emit(event);
}
onInputBlur(event) {
this.focused = false;
this.onBlur.emit(event);
if (!this.preventModelTouched) {
this.onModelTouched();
}
this.preventModelTouched = false;
}
onKeyDown(event, search = false) {
if (this.$disabled() || this.readonly || this.loading) {
return;
}
switch (event.code) {
//down
case 'ArrowDown':
this.onArrowDownKey(event);
break;
//up
case 'ArrowUp':
this.onArrowUpKey(event, this.editable);
break;
case 'ArrowLeft':
case 'ArrowRight':
this.onArrowLeftKey(event, this.editable);
break;
case 'Delete':
this.onDeleteKey(event);
break;
case 'Home':
this.onHomeKey(event, this.editable);
break;
case 'End':
this.onEndKey(event, this.editable);
break;
case 'PageDown':
this.onPageDownKey(event);
break;
case 'PageUp':
this.onPageUpKey(event);
break;
//space
case 'Space':
this.onSpaceKey(event, search);
break;
//enter
case 'Enter':
case 'NumpadEnter':
this.onEnterKey(event);
break;
//escape and tab
case 'Escape':
this.onEscapeKey(event);
break;
case 'Tab':
this.onTabKey(event);
break;
case 'Backspace':
this.onBackspaceKey(event, this.editable);
break;
case 'ShiftLeft':
case 'ShiftRight':
//NOOP
break;
default:
if (!event.metaKey && isPrintableCharacter(event.key)) {
!this.overlayVisible && this.show();
!this.editable && this.searchOptions(event, event.key);
}
break;
}
this.clicked.set(false);
}
onFilterKeyDown(event) {
switch (event.code) {
case 'ArrowDown':
this.onArrowDownKey(event);
break;
case 'ArrowUp':
this.onArrowUpKey(event, true);
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':
case 'NumpadEnter':
this.onEnterKey(event, true);
break;
case 'Escape':
this.onEscapeKey(event);
break;
case 'Tab':
this.onTabKey(event, true);
break;
default:
break;
}
}
onFilterBlur(event) {
this.focusedOptionIndex.set(-1);
}
onArrowDownKey(event) {
if (!this.overlayVisible) {
this.show();
this.editable && this.changeFocusedOptionIndex(event, this.findSelectedOptionIndex());
}
else {
const optionIndex = this.focusedOptionIndex() !== -1 ? this.findNextOptionIndex(this.focusedOptionIndex()) : this.clicked() ? this.findFirstOptionIndex() : this.findFirstFocusedOptionIndex();
this.changeFocusedOptionIndex(event, optionIndex);
}
// const optionIndex = this.focusedOptionIndex() !== -1 ? this.findNextOptionIndex(this.focusedOptionIndex()) : this.findFirstFocusedOptionIndex();
// this.changeFocusedOptionIndex(event, optionIndex);
// !this.overlayVisible && this.show();
event.preventDefault();
event.stopPropagation();
}
changeFocusedOptionIndex(event, index) {
if (this.focusedOptionIndex() !== index) {
this.focusedOptionIndex.set(index);
this.scrollInView();
if (this.selectOnFocus) {
const option = this.visibleOptions()[index];
this.onOptionSelect(event, option, false);
}
}
}
get virtualScrollerDisabled() {
return !this.virtualScroll;
}
scrollInView(index = -1) {
const id = index !== -1 ? `${this.id}_${index}` : this.focusedOptionId;
if (this.itemsViewChild && this.itemsViewChild.nativeElement) {
const element = findSingle(this.itemsViewChild.nativeElement, `li[id="${id}"]`);
if (element) {
element.scrollIntoView && element.scrollIntoView({ block: 'nearest', inline: 'nearest' });
}
else if (!this.virtualScrollerDisabled) {
setTimeout(() => {
this.virtualScroll && this.scroller?.scrollToIndex(index !== -1 ? index : this.focusedOptionIndex());
}, 0);
}
}
}
hasSelectedOption() {
return this.modelValue() !== undefined;
}
isValidSelectedOption(option) {
return this.isValidOption(option) && this.isSelected(option);
}
equalityKey() {
return this.optionValue ? null : this.dataKey;
}
findFirstFocusedOptionIndex() {
const selectedIndex = this.findSelectedOptionIndex();
return selectedIndex < 0 ? this.findFirstOptionIndex() : selectedIndex;
}
findFirstOptionIndex() {
return this.visibleOptions().findIndex((option) => this.isValidOption(option));
}
findSelectedOptionIndex() {
return this.hasSelectedOption() ? this.visibleOptions().findIndex((option) => this.isValidSelectedOption(option)) : -1;
}
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 ? findLastIndex(this.visibleOptions().slice(0, index), (option) => this.isValidOption(option)) : -1;
return matchedOptionIndex > -1 ? matchedOptionIndex : index;
}
findLastOptionIndex() {
return findLastIndex(this.visibleOptions(), (option) => this.isValidOption(option));
}
findLastFocusedOptionIndex() {
const selectedIndex = this.findSelectedOptionIndex();
return selectedIndex < 0 ? this.findLastOptionIndex() : selectedIndex;
}
isValidOption(option) {
return option !== undefined && option !== null && !(this.isOptionDisabled(option) || this.isOptionGroup(option));
}
isOptionGroup(option) {
return this.optionGroupLabel !== undefined && this.optionGroupLabel !== null && option.optionGroup !== undefined && option.optionGroup !== null && option.group;
}
onArrowUpKey(event, pressedInInputText = false) {
if (event.altKey && !pressedInInputText) {
if (this.focusedOptionIndex() !== -1) {
const option = this.visibleOptions()[this.focusedOptionIndex()];
this.onOptionSelect(event, option);
}
this.overlayVisible && this.hide();
}
else {
const optionIndex = this.focusedOptionIndex() !== -1 ? this.findPrevOptionIndex(this.focusedOptionIndex()) : this.clicked() ? this.findLastOpt