import * as _angular_core from '@angular/core';
import { ElementRef, OnInit, DoCheck, AfterViewInit, OnDestroy, OnChanges, TemplateRef, SimpleChanges, PipeTransform } from '@angular/core';
import { CdkDragDrop } from '@angular/cdk/drag-drop';
import { CdkConnectedOverlay, ConnectionPositionPair } from '@angular/cdk/overlay';
import { ViewportRuler } from '@angular/cdk/scrolling';
import { ControlValueAccessor, NgControl } from '@angular/forms';
import { SafeHtml } from '@angular/platform-browser';

declare const timeout = 200;
/**
 * Latin - `[\u0300-\u036F]` matches combining diacritical marks:
 * - `\u0300-\u036F`: grave, acute, circumflex, tilde, macron, breve, dot above, diaeresis, ring above, etc.
 */
declare const latinDiacritical: {
    tmp: string;
    pattern: string;
};
/**
 * Arabic - `[\u064B-\u0652\u0670]` matches Arabic diacritics (harakat):
 * - `\u064B-\u0652`: fatha, damma, kasra, sukun, shadda, tanwin, etc.
 * - `\u0670`: alif khanjariyah (superscript alif)
 */
declare const arabicDiacritical: {
    tmp: string;
    pattern: string;
};
/**
 * Hebrew - `[\u05B0-\u05BC\u05C1\u05C2]` matches Hebrew diacritics (niqqud):
 * - `\u05B0-\u05BC`: vowel points (sheva, hataf, hiriq, tsere, segol, patah, qamats, holam, qubuts, dagesh, etc.)
 * - `\u05C1-\u05C2`: shin dot (right) and sin dot (left)
 */
declare const hebrewDiacritical: {
    tmp: string;
    pattern: string;
};
declare const unicodePatterns: {
    l: string;
    s: RegExp;
    e?: string;
    d?: {
        tmp: string;
        pattern: string;
    };
}[];
declare const defaultMinCountForSearch = 6;
declare const protectRegexp: RegExp;

/**
 * Shared base for the <ng-option> and <ng-group> directives.
 *
 * Holds the inputs common to both (classes, templateId, data, dir) and the projected-content
 * reactivity: plain text content (interpolation in the element body) is not a tracked signal, so
 * the host component dirty-checks it in ngDoCheck and pushes changes into {@link _projectedContent},
 * which the rebuild effect depends on through {@link _resolveLabel}.
 */
declare abstract class Select2ContentDirective {
    protected readonly _elementRef: ElementRef<any>;
    /** Additional CSS classes */
    readonly classes: _angular_core.InputSignal<string | undefined>;
    /** Template id */
    readonly templateId: _angular_core.InputSignal<string | undefined>;
    /** Arbitrary data attached to the option/group */
    readonly data: _angular_core.InputSignal<any>;
    /** Force text direction */
    readonly dir: _angular_core.InputSignal<"ltr" | "rtl" | undefined>;
    /**
     * Reactive trigger for the projected text content (interpolation in the element body).
     * The host component dirty-checks the DOM in its ngDoCheck and updates this signal when the
     * rendered text changes, so the component's rebuild effect re-runs even though plain text
     * content is not otherwise a tracked dependency.
     */
    readonly _projectedContent: _angular_core.WritableSignal<string | undefined>;
    /** Read the host element's rendered text content (innerHTML, then textContent, then ''). */
    private _readContent;
    /**
     * Re-read the host element's rendered content and update {@link _projectedContent} when it
     * changed. Returns true if a change was detected. Called from the host component's ngDoCheck.
     */
    _refreshProjectedContent(): boolean;
    /**
     * Resolve the label: prefer the explicit [label] input, then the cached projected content,
     * then a one-off DOM read. Reading _projectedContent() registers it as a dependency of the
     * rebuild effect so interpolation/content changes propagate; the cached value avoids a second
     * DOM read, and _readContent() only runs on the initial pass.
     */
    protected _resolveLabel(label: string | undefined): string;
    static ɵfac: _angular_core.ɵɵFactoryDeclaration<Select2ContentDirective, never>;
    static ɵdir: _angular_core.ɵɵDirectiveDeclaration<Select2ContentDirective, never, never, { "classes": { "alias": "classes"; "required": false; "isSignal": true; }; "templateId": { "alias": "templateId"; "required": false; "isSignal": true; }; "data": { "alias": "data"; "required": false; "isSignal": true; }; "dir": { "alias": "dir"; "required": false; "isSignal": true; }; }, {}, never, never, true, never>;
}

/**
 * Directive representing a single option inside a <ng-select2> or <ng-group>.
 *
 * Usage:
 * ```html
 * <ng-select2>
 *   <ng-option value="foo">Foo</ng-option>
 *   <ng-option value="bar" [disabled]="true">Bar</ng-option>
 * </ng-select2>
 * ```
 */
declare class Select2OptionDirective extends Select2ContentDirective {
    /** The option value */
    readonly value: _angular_core.InputSignal<Select2Value>;
    /** Explicit label — falls back to the element's text content if omitted */
    readonly label: _angular_core.InputSignal<string | undefined>;
    /** Whether the option is disabled */
    readonly disabled: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** Template selection id */
    readonly templateSelectionId: _angular_core.InputSignal<string | undefined>;
    /** Hide this option */
    readonly hide: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** Build a plain Select2Option object from the current input values */
    toOption(): Select2Option;
    static ɵfac: _angular_core.ɵɵFactoryDeclaration<Select2OptionDirective, never>;
    static ɵdir: _angular_core.ɵɵDirectiveDeclaration<Select2OptionDirective, "ng-option", never, { "value": { "alias": "value"; "required": true; "isSignal": true; }; "label": { "alias": "label"; "required": false; "isSignal": true; }; "disabled": { "alias": "disabled"; "required": false; "isSignal": true; }; "templateSelectionId": { "alias": "templateSelectionId"; "required": false; "isSignal": true; }; "hide": { "alias": "hide"; "required": false; "isSignal": true; }; }, {}, never, never, true, never>;
}

declare class Select2 implements ControlValueAccessor, OnInit, DoCheck, AfterViewInit, OnDestroy, OnChanges {
    protected _viewportRuler: ViewportRuler;
    private _changeDetectorRef;
    private _parentForm;
    private _parentFormGroup;
    _control: NgControl | null;
    readonly _uid: string;
    /** data of options & option groups */
    readonly data: _angular_core.InputSignal<Select2Data>;
    /** minimum characters to start filter search */
    readonly minCharForSearch: _angular_core.InputSignalWithTransform<number, unknown>;
    /** text placeholder */
    readonly displaySearchStatus: _angular_core.InputSignal<"default" | "hidden" | "always" | undefined>;
    /** text placeholder */
    readonly placeholder: _angular_core.InputSignal<string | undefined>;
    /** in multiple: maximum selection element (0 = no limit) */
    readonly limitSelection: _angular_core.InputSignalWithTransform<number, unknown>;
    /** dropdown position */
    readonly listPosition: _angular_core.InputSignal<"above" | "below" | "auto">;
    /** overlay with CDK Angular position */
    readonly overlay: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** select one or more item */
    readonly multiple: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** drag'n drop list of items in multiple */
    readonly multipleDrag: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** use the material style */
    readonly styleMode: _angular_core.InputSignal<"default" | "material" | "noStyle" | "borderless">;
    /** message when no result */
    readonly noResultMessage: _angular_core.InputSignal<string | undefined>;
    /** maximum results limit (0 = no limit) */
    readonly maxResults: _angular_core.InputSignalWithTransform<number, unknown>;
    /** message when maximum results */
    readonly maxResultsMessage: _angular_core.InputSignal<string>;
    /** infinite scroll distance */
    readonly infiniteScrollDistance: _angular_core.InputSignalWithTransform<number, unknown>;
    /** infinite scroll distance */
    readonly infiniteScrollThrottle: _angular_core.InputSignalWithTransform<number, unknown>;
    /** infinite scroll activated */
    readonly infiniteScroll: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** auto create if not exist */
    readonly autoCreate: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** no template for label selection */
    readonly noLabelTemplate: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** use it for change the pattern of the filter search */
    readonly editPattern: _angular_core.InputSignal<((str: string) => string) | undefined>;
    /** template(s) for formatting */
    readonly templates: _angular_core.InputSignal<Select2Template>;
    /** template for formatting selected option */
    readonly templateSelection: _angular_core.InputSignal<TemplateRef<any> | undefined>;
    /** the max height of the results container when opening the select */
    readonly resultMaxHeight: _angular_core.InputSignal<string>;
    /** Active Search event */
    readonly customSearchEnabled: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** minimal data of show the search field */
    readonly minCountForSearch: _angular_core.InputSignalWithTransform<number | undefined, unknown>;
    /** Unique id of the element. */
    readonly id: _angular_core.InputSignal<string>;
    /** Unique id of label element. */
    readonly idLabel: _angular_core.Signal<string>;
    /** Unique id of combo element. */
    readonly idCombo: _angular_core.Signal<string>;
    /** Unique id of options element. */
    readonly idOptions: _angular_core.Signal<string>;
    /** Unique id of overlay element. */
    readonly idOverlay: _angular_core.Signal<string>;
    /** Whether the element is required. */
    readonly required: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** Whether selected items should be hidden. */
    readonly disabled: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** Whether items are hidden when has. */
    readonly hideSelectedItems: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** Whether the element is readonly. */
    readonly readonly: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** The input element's value. */
    readonly value: _angular_core.InputSignal<Select2UpdateValue>;
    /** Tab index for the select2 element. */
    readonly tabIndex: _angular_core.InputSignalWithTransform<number, unknown>;
    /** reset with no selected value */
    readonly resettable: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** selected value when × is clicked */
    readonly resetSelectedValue: _angular_core.InputSignal<any>;
    /** like native select keyboard navigation (only single mode) */
    readonly nativeKeyboard: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** highlight search text */
    readonly highlightText: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** grid: item by line
     * * 0 = no grid
     * * number = item by line (4)
     * * string = minimal size item (100px)
     */
    readonly grid: _angular_core.InputSignal<string>;
    /**
     * Replace selection by a text
     * * if string: `%size%` = total selected options
     * * if function: juste show the string
     */
    readonly selectionOverride: _angular_core.InputSignal<Select2SelectionOverride | undefined>;
    /** force selection on one line */
    readonly selectionNoWrap: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** Add an option to select or remove all (if all is selected) */
    readonly showSelectAll: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** Show a checkbox next to each option */
    readonly showOptionCheckbox: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** Text for remove all options */
    readonly removeAllText: _angular_core.InputSignal<string>;
    /** Text for select all options */
    readonly selectAllText: _angular_core.InputSignal<string>;
    /** title attribute applied to the input */
    readonly title: _angular_core.InputSignal<string | undefined>;
    /** aria-labelledby attribute applied to the input, to specify en external label */
    readonly ariaLabelledby: _angular_core.InputSignal<string | undefined>;
    /** aria-describedby attribute applied to the input */
    readonly ariaDescribedby: _angular_core.InputSignal<string | undefined>;
    /** aria-invalid attribute applied to the input, to force error state */
    readonly ariaInvalid: _angular_core.InputSignalWithTransform<boolean, unknown>;
    /** description of the reset button when using 'resettable'. Default value : 'Reset' */
    readonly ariaResetButtonDescription: _angular_core.InputSignal<string>;
    readonly update: _angular_core.OutputEmitterRef<Select2UpdateEvent<Select2UpdateValue>>;
    readonly autoCreateItem: _angular_core.OutputEmitterRef<Select2AutoCreateEvent<Select2UpdateValue>>;
    readonly open: _angular_core.OutputEmitterRef<Select2>;
    readonly close: _angular_core.OutputEmitterRef<Select2>;
    readonly focus: _angular_core.OutputEmitterRef<Select2>;
    readonly blur: _angular_core.OutputEmitterRef<Select2>;
    readonly search: _angular_core.OutputEmitterRef<Select2SearchEvent<Select2UpdateValue>>;
    readonly scroll: _angular_core.OutputEmitterRef<Select2ScrollEvent>;
    readonly removeOption: _angular_core.OutputEmitterRef<Select2RemoveEvent<Select2UpdateValue>>;
    readonly cdkConnectedOverlay: _angular_core.Signal<CdkConnectedOverlay>;
    readonly selection: _angular_core.Signal<ElementRef<HTMLElement>>;
    readonly resultContainer: _angular_core.Signal<ElementRef<HTMLElement> | undefined>;
    readonly results: _angular_core.Signal<readonly ElementRef<any>[]>;
    readonly searchInput: _angular_core.Signal<ElementRef<HTMLInputElement> | undefined>;
    readonly dropdown: _angular_core.Signal<ElementRef<HTMLElement> | undefined>;
    /** Top-level <ng-option> elements (not inside a <ng-group>) */
    readonly _ngOptions: _angular_core.Signal<readonly Select2OptionDirective[]>;
    /** <ng-group> elements */
    readonly _ngGroups: _angular_core.Signal<readonly Select2GroupDirective[]>;
    readonly classMaterial: _angular_core.Signal<boolean>;
    readonly classNostyle: _angular_core.Signal<boolean>;
    readonly classBorderless: _angular_core.Signal<boolean>;
    readonly select2above: _angular_core.Signal<boolean>;
    selectedOption: Select2Option | Select2Option[] | null;
    isOpen: boolean;
    searchStyle: string | undefined;
    /** Whether the element is focused or not. */
    focused: boolean;
    filteredData: _angular_core.WritableSignal<Select2Data | undefined>;
    get select2Options(): Select2Option[];
    get select2Option(): Select2Option | null;
    get searchText(): string;
    protected set searchText(text: string);
    get disabledState(): boolean;
    protected overlayWidth: number | string;
    protected overlayHeight: number | string;
    protected _triggerRect: DOMRect | undefined;
    protected _dropdownRect: DOMRect | undefined;
    protected readonly _positions: _angular_core.Signal<ConnectionPositionPair[]>;
    protected maxResultsExceeded: boolean | undefined;
    private hoveringOption;
    hoveringOptionId: _angular_core.Signal<string | null>;
    private innerSearchText;
    protected isSearchboxHidden: boolean | undefined;
    private selectionElement;
    private get resultsElement();
    private _stateChanges;
    /** Tab index for the element. */
    protected get _tabIndex(): number;
    private _data;
    private _disabled;
    private _destroyed;
    protected _value: Select2UpdateValue | null;
    private _previousNativeValue;
    private _overlayPosition;
    private toObservable;
    constructor();
    ngOnChanges(changes: SimpleChanges): void;
    clickDetection(e: MouseEvent): void;
    /** View -> model callback called when select has been touched */
    private _onTouched;
    /** View -> model callback called when value changes */
    private _onChange;
    _onViewportChange(): void;
    ngOnInit(): void;
    ngAfterViewInit(): void;
    ngDoCheck(): void;
    ngOnDestroy(): void;
    /**
     * Template mode only: dirty-check the rendered text content of every projected <ng-option>
     * (top-level and nested in <ng-group>) so interpolation changes ({{ }}) are picked up.
     * Updating an option's _projectedContent signal re-triggers the data rebuild effect.
     */
    private _refreshProjectedContent;
    fixValue(): void;
    updateSearchBox(): void;
    getOptionStyle(option: Select2Option): string;
    mouseenter(option: Select2Option): void;
    click(option: Select2Option): void;
    reset(event?: MouseEvent): void;
    prevChange(event: Event): void;
    stopEvent(event: Event): void;
    toggleOpenAndClose(focus?: boolean, open?: boolean, event?: KeyboardEvent): void;
    hasTemplate(option: Select2Option | Select2Group, defaultValue: string, select?: boolean): boolean;
    getTemplate(option: Select2Option | Select2Group, defaultValue: string, select?: boolean): any;
    getContext(option: Select2Option): {
        searchText: string;
        highlightText: boolean;
        value: Select2Value;
        label: string;
        disabled?: boolean;
        id?: string;
        classes?: string;
        templateId?: string;
        templateSelectionId?: string;
        data?: any;
        hide?: boolean;
        dir?: "ltr" | "rtl";
    };
    triggerRect(): void;
    isNumber(o: any): boolean;
    selectAll(): void;
    selectAllTest(): boolean;
    private testSelection;
    private testValueChange;
    private updateFilteredData;
    private clickExit;
    private isInSelect;
    private ifParentContainsClass;
    private ifParentContainsId;
    private getParentElementByClass;
    private getParentElementById;
    private containClasses;
    private containAlmostOneClasses;
    private clickOnSelect2Element;
    focusin(options?: FocusOptions): void;
    focusout(event: FocusEvent): void;
    select(option: Select2Option | null, emit?: boolean, closeOnSelect?: boolean): void;
    private testDiffValue;
    keyDown(event: KeyboardEvent, create?: boolean): void;
    private actionAfterKeyDownMoveAction;
    openKey(event: KeyboardEvent, create?: boolean): void;
    private _closeOnKey;
    private _shouldKeyDownOnOpen;
    private _handleOnOpenAction;
    private _scrollToInitialOption;
    searchUpdate(e: Event): void;
    isSelected(option: Select2Option): "true" | "false";
    isDisabled(option: Select2Option): "true" | "false";
    removeSelection(e: MouseEvent | KeyboardEvent | Event, option: Select2Option): void;
    /**
     * Sets the model value. Implemented as part of ControlValueAccessor.
     * @param value
     */
    writeValue(value: any): void;
    /**
     * Saves a callback function to be invoked when the select's value
     * changes from user input. Part of the ControlValueAccessor interface
     * required to integrate with Angular's core forms API.
     *
     * @param fn Callback to be triggered when the value changes.
     */
    registerOnChange(fn: (value: any) => void): void;
    /**
     * Saves a callback function to be invoked when the select is blurred
     * by the user. Part of the ControlValueAccessor interface required
     * to integrate with Angular's core forms API.
     *
     * @param fn Callback to be triggered when the component has been touched.
     */
    registerOnTouched(fn: () => void): void;
    /**
     * Sets whether the component should be disabled.
     * Implemented as part of ControlValueAccessor.
     * @param isDisabled
     */
    setDisabledState(isDisabled: boolean): void;
    onScroll(way: 'up' | 'down'): void;
    private _setupScrollListener;
    _onScrollEvent(scrollTop: number, clientHeight: number, scrollHeight: number): void;
    drop(event: CdkDragDrop<string[], string[], any>): void;
    _isErrorState(): boolean;
    private _isFormSubmitted;
    _selectionOverrideLabel(): string | undefined;
    getElementId(elt: Select2Group | Select2Option | null): string | null;
    private _toSuffix;
    _getElementPath(elt: Select2Group | Select2Option): number[];
    _toGroup(group: Select2Option | Select2Group): Select2Group;
    _toOption(option: Select2Option | Select2Group): Select2Option;
    private updateEvent;
    private optionsSize;
    private addItem;
    private createAndAdd;
    private moveUp;
    private moveDown;
    private moveStart;
    private moveEnd;
    private updateScrollFromOption;
    private selectByEnter;
    private _testKey;
    /**
     * Sets the selected option based on a value. If no option can be
     * found with the designated value, the select trigger is cleared.
     */
    private _setSelectionByValue;
    private _preselectArrayValue;
    /** Does some manual dirty checking on the native input `value` property. */
    private _dirtyCheckNativeValue;
    private _focusSearchbox;
    private _focus;
    private _isAbobeOverlay;
    _updateFocusState(state: boolean): void;
    static ɵfac: _angular_core.ɵɵFactoryDeclaration<Select2, never>;
    static ɵcmp: _angular_core.ɵɵComponentDeclaration<Select2, "select2, ng-select2", never, { "data": { "alias": "data"; "required": false; "isSignal": true; }; "minCharForSearch": { "alias": "minCharForSearch"; "required": false; "isSignal": true; }; "displaySearchStatus": { "alias": "displaySearchStatus"; "required": false; "isSignal": true; }; "placeholder": { "alias": "placeholder"; "required": false; "isSignal": true; }; "limitSelection": { "alias": "limitSelection"; "required": false; "isSignal": true; }; "listPosition": { "alias": "listPosition"; "required": false; "isSignal": true; }; "overlay": { "alias": "overlay"; "required": false; "isSignal": true; }; "multiple": { "alias": "multiple"; "required": false; "isSignal": true; }; "multipleDrag": { "alias": "multipleDrag"; "required": false; "isSignal": true; }; "styleMode": { "alias": "styleMode"; "required": false; "isSignal": true; }; "noResultMessage": { "alias": "noResultMessage"; "required": false; "isSignal": true; }; "maxResults": { "alias": "maxResults"; "required": false; "isSignal": true; }; "maxResultsMessage": { "alias": "maxResultsMessage"; "required": false; "isSignal": true; }; "infiniteScrollDistance": { "alias": "infiniteScrollDistance"; "required": false; "isSignal": true; }; "infiniteScrollThrottle": { "alias": "infiniteScrollThrottle"; "required": false; "isSignal": true; }; "infiniteScroll": { "alias": "infiniteScroll"; "required": false; "isSignal": true; }; "autoCreate": { "alias": "autoCreate"; "required": false; "isSignal": true; }; "noLabelTemplate": { "alias": "noLabelTemplate"; "required": false; "isSignal": true; }; "editPattern": { "alias": "editPattern"; "required": false; "isSignal": true; }; "templates": { "alias": "templates"; "required": false; "isSignal": true; }; "templateSelection": { "alias": "templateSelection"; "required": false; "isSignal": true; }; "resultMaxHeight": { "alias": "resultMaxHeight"; "required": false; "isSignal": true; }; "customSearchEnabled": { "alias": "customSearchEnabled"; "required": false; "isSignal": true; }; "minCountForSearch": { "alias": "minCountForSearch"; "required": false; "isSignal": true; }; "id": { "alias": "id"; "required": false; "isSignal": true; }; "required": { "alias": "required"; "required": false; "isSignal": true; }; "disabled": { "alias": "disabled"; "required": false; "isSignal": true; }; "hideSelectedItems": { "alias": "hideSelectedItems"; "required": false; "isSignal": true; }; "readonly": { "alias": "readonly"; "required": false; "isSignal": true; }; "value": { "alias": "value"; "required": false; "isSignal": true; }; "tabIndex": { "alias": "tabIndex"; "required": false; "isSignal": true; }; "resettable": { "alias": "resettable"; "required": false; "isSignal": true; }; "resetSelectedValue": { "alias": "resetSelectedValue"; "required": false; "isSignal": true; }; "nativeKeyboard": { "alias": "nativeKeyboard"; "required": false; "isSignal": true; }; "highlightText": { "alias": "highlightText"; "required": false; "isSignal": true; }; "grid": { "alias": "grid"; "required": false; "isSignal": true; }; "selectionOverride": { "alias": "selectionOverride"; "required": false; "isSignal": true; }; "selectionNoWrap": { "alias": "selectionNoWrap"; "required": false; "isSignal": true; }; "showSelectAll": { "alias": "showSelectAll"; "required": false; "isSignal": true; }; "showOptionCheckbox": { "alias": "showOptionCheckbox"; "required": false; "isSignal": true; }; "removeAllText": { "alias": "removeAllText"; "required": false; "isSignal": true; }; "selectAllText": { "alias": "selectAllText"; "required": false; "isSignal": true; }; "title": { "alias": "title"; "required": false; "isSignal": true; }; "ariaLabelledby": { "alias": "ariaLabelledby"; "required": false; "isSignal": true; }; "ariaDescribedby": { "alias": "ariaDescribedby"; "required": false; "isSignal": true; }; "ariaInvalid": { "alias": "ariaInvalid"; "required": false; "isSignal": true; }; "ariaResetButtonDescription": { "alias": "ariaResetButtonDescription"; "required": false; "isSignal": true; }; }, { "update": "update"; "autoCreateItem": "autoCreateItem"; "open": "open"; "close": "close"; "focus": "focus"; "blur": "blur"; "search": "search"; "scroll": "scroll"; "removeOption": "removeOption"; }, ["_ngOptions", "_ngGroups"], ["select2-label, ng-select2-label", "select2-hint, ng-select2-hint"], true, never>;
}

interface Select2Group {
    /** for identification */
    id?: string;
    /** label of group */
    label: string;
    /** options list */
    options: Select2Option[];
    /** add classes  */
    classes?: string;
    /** template id dropdown & selection if no templateSelectionId */
    templateId?: string;
    /** template data  */
    data?: any;
    /** force left to right or right to left */
    dir?: 'ltr' | 'rtl';
}
interface Select2Option {
    /** value  */
    value: Select2Value;
    /** label of option */
    label: string;
    /** no selectable is disabled */
    disabled?: boolean;
    /** for identification */
    id?: string;
    /** add classes  */
    classes?: string;
    /** template id dropdown & selection if no templateSelectionId */
    templateId?: string;
    /** template id for selection */
    templateSelectionId?: string;
    /** template data  */
    data?: any;
    /** hide this option */
    hide?: boolean;
    /** force left to right or right to left */
    dir?: 'ltr' | 'rtl';
}
type Select2Value = string | number | boolean | object | null | undefined;
type Select2UpdateValue = Select2Value | Select2Value[] | undefined | null;
type Select2Data = (Select2Group | Select2Option)[];
interface Select2UpdateEvent<U extends Select2UpdateValue = Select2Value> {
    /** component */
    readonly component: Select2;
    /** current selected value */
    readonly value: U | null;
    /** selected option */
    readonly options: Select2Option[] | null;
}
interface Select2AutoCreateEvent<U extends Select2UpdateValue = Select2Value> {
    /** component */
    readonly component: Select2;
    /** current selected value */
    readonly value: U;
    /** selected option */
    readonly options: Select2Option[] | null;
}
interface Select2SearchEvent<U extends Select2UpdateValue = Select2Value> {
    /** component */
    readonly component: Select2;
    /** current selected value */
    readonly value: U | null;
    /** search text */
    readonly search: string;
    /** current data source */
    readonly data: Select2Data;
    /** method to call to update the data */
    readonly filteredData: (data: Select2Data) => void;
}
interface Select2RemoveEvent<U extends Select2UpdateValue = Select2Value> {
    /** component */
    readonly component: Select2;
    /** current selected value */
    readonly value: U;
    /** remove */
    readonly removedOption: Select2Option;
}
interface Select2ScrollEvent {
    /** component */
    readonly component: Select2;
    /** scroll way */
    readonly way: 'up' | 'down';
    /** search text */
    readonly search: string;
    /** current data */
    readonly data: Select2Data;
}
type Select2SelectionOverride = string | ((params: {
    size: number;
    options: Select2Option[] | null;
}) => string);
type Select2Template = TemplateRef<any> | {
    [key: string]: TemplateRef<any>;
} | undefined;

/**
 * Directive representing an option group inside a <ng-select2>.
 *
 * Usage:
 * ```html
 * <ng-select2>
 *   <ng-group label="Fruits">
 *     <ng-option value="apple">Apple</ng-option>
 *     <ng-option value="banana">Banana</ng-option>
 *   </ng-group>
 * </ng-select2>
 * ```
 */
declare class Select2GroupDirective extends Select2ContentDirective {
    /** The group label (required) */
    readonly label: _angular_core.InputSignal<string>;
    /** Child <ng-option> directives nested inside this group */
    readonly _ngOptions: _angular_core.Signal<readonly Select2OptionDirective[]>;
    /** Build a plain Select2Group object from the current input values */
    toGroup(): Select2Group;
    static ɵfac: _angular_core.ɵɵFactoryDeclaration<Select2GroupDirective, never>;
    static ɵdir: _angular_core.ɵɵDirectiveDeclaration<Select2GroupDirective, "ng-group", never, { "label": { "alias": "label"; "required": true; "isSignal": true; }; }, {}, ["_ngOptions"], never, true, never>;
}

declare class Select2HighlightPipe implements PipeTransform {
    private readonly sanitizer;
    transform(value: string | null | undefined, search: string | null | undefined, disabled?: boolean): SafeHtml | string;
    static ɵfac: _angular_core.ɵɵFactoryDeclaration<Select2HighlightPipe, never>;
    static ɵpipe: _angular_core.ɵɵPipeDeclaration<Select2HighlightPipe, "highlightText", true>;
}

declare class Select2Hint {
    static ɵfac: _angular_core.ɵɵFactoryDeclaration<Select2Hint, never>;
    static ɵdir: _angular_core.ɵɵDirectiveDeclaration<Select2Hint, "select2-hint, ng-select2-hint", never, {}, {}, never, never, true, never>;
}

declare class Select2Label {
    static ɵfac: _angular_core.ɵɵFactoryDeclaration<Select2Label, never>;
    static ɵdir: _angular_core.ɵɵDirectiveDeclaration<Select2Label, "select2-label, ng-select2-label", never, {}, {}, never, never, true, never>;
}

declare class Select2Utils {
    static getOptionByValue(data: Select2Data, value: Select2Value): Select2Option | null;
    static getOptionsByValue(data: Select2Data, value: Select2UpdateValue | null | undefined, multiple: boolean | null | undefined): Select2Option | Select2Option[] | null;
    static getFirstAvailableOption(data: Select2Data): Select2Option | null;
    static optionIsNotInFilteredData(filteredData: Select2Data, option: Select2Option | null): boolean;
    static getPreviousOption(filteredData: Select2Data, hoveringOption: Select2Option | null): Select2Option | null;
    static getNextOption(filteredData: Select2Data | null, hoveringOption: Select2Option | null): Select2Option | null;
    static getFirstOption(filteredData: Select2Data): Select2Option | null;
    static getLastOption(filteredData: Select2Data): Select2Option | null;
    static isGroup(element: Select2Group | Select2Option): element is Select2Group;
    static isOption(element: Select2Group | Select2Option): element is Select2Option;
    static getReduceData(data: Select2Data, maxResults?: number): {
        result: Select2Data;
        reduce: boolean;
    };
    static getFilteredData(data: Select2Data, searchText: string | null, editPattern?: (str: string) => string): Select2Data;
    static getFilteredSelectedData(data: Select2Data, selectedOptions: Select2Option | Select2Option[] | null): Select2Data;
    static isSearchboxHidden(data: Select2Data, minCountForSearch?: number): boolean;
    static isSelected(options: Select2Option | Select2Option[] | null, option: Select2Option, multiple: boolean | null | undefined): "true" | "false";
    static removeSelection(options: Select2Option | Select2Option[] | null, option: Select2Option): void;
    private static getOptionsCount;
    private static isNullOrUndefined;
    private static containSearchText;
    static protectPattern(str: string): string;
    private static formatSansUnicode;
    static patternUnicode(str: string): string;
    static formatPattern(str: string, editPattern?: (str: string) => string): string;
}

export { Select2, Select2ContentDirective, Select2GroupDirective, Select2HighlightPipe, Select2Hint, Select2Label, Select2OptionDirective, Select2Utils, arabicDiacritical, defaultMinCountForSearch, hebrewDiacritical, latinDiacritical, protectRegexp, timeout, unicodePatterns };
export type { Select2AutoCreateEvent, Select2Data, Select2Group, Select2Option, Select2RemoveEvent, Select2ScrollEvent, Select2SearchEvent, Select2SelectionOverride, Select2Template, Select2UpdateEvent, Select2UpdateValue, Select2Value };
//# sourceMappingURL=ng-select2-component.d.ts.map