import { AfterContentInit, Injector, OnInit, QueryList } from '@angular/core';
import { Strings } from '../../../../generated/strings';
import { FormFieldComponent } from '../form-field.component';
import { FormFieldOptionComponent } from './form-field-option.component';
import * as i0 from "@angular/core";
declare type OptionsFormFieldTrackBy = 'index' | 'value' | 'label' | 'default';
/**
 * Defines a base class form form field components with options
 */
export declare abstract class OptionsFormFieldComponent<TStrings, TModel> extends FormFieldComponent<TStrings, TModel> implements OnInit, AfterContentInit {
    /**
     * Indicates if multiple option selection is supported
     */
    abstract multiple: boolean;
    /**
     * Sets the comparator function to determined complex object equality of option.value and values
     * Defaults to '===' object equality. Meaning that value is always a literal subset of all the option.value's.
     */
    valueComparator: MsftSme.Func2<TModel, TModel, boolean>;
    /**
     * Indicates if the select all option should be shown in multi-select mode
     */
    showSelectAll: boolean;
    /**
     * Indicates the mode to track options by
     */
    trackBy: OptionsFormFieldTrackBy;
    /**
     * The options for this control.
     */
    options: QueryList<FormFieldOptionComponent>;
    /**
     * The options for this control.
     */
    selectedOptions: FormFieldOptionComponent[];
    /**
     * The options for this control.
     */
    selectedOptionsDisplayValue: string;
    /**
     * indicates if all options are selected
     */
    get isAllOptionsSelected(): boolean;
    /**
     * indicates if some options are selected
     */
    get isSomeOptionsSelected(): boolean;
    /**
     * The current keyCodes for autocompletion
     */
    private autoCompleteKeyCodes;
    /**
     * the Filtered options specifically using for combobox with option filters
     */
    optionsFiltered: QueryList<FormFieldOptionComponent>;
    /**
     * indicates whether the combobox has option filters
     */
    searchable: boolean;
    /**
     * indicates the search string for filtering options
     */
    get searchString(): string;
    set searchString(value: string);
    /**
     * indicates the internal search string
     */
    private searchStringInternal;
    /**
     * Initializes a new instance of the OptionsFormFieldComponent
     */
    constructor(injector: Injector);
    /**
     * Implementation of Angular OnInit interface
     */
    ngOnInit(): void;
    /**
     * Implementation of Angular AfterContentInit interface
     */
    ngAfterContentInit(): void;
    /**
     * Gets the option display string for a given value
     * @param value The value to get a display string for
     */
    getValueDisplayString(value: TModel): string;
    /**
     * Selects an option.
     */
    toggleOption(option: FormFieldOptionComponent, select: boolean): boolean;
    /**
     * Gets the selected option index (always -1 in multiple selection mode)
     */
    getSelectedIndex(): number;
    /**
     * Selects/Deselects an option by its index
     */
    toggleOptionByIndex(index: number, select?: boolean): boolean;
    /**
     * Selects the next option.
     * @returns a boolean indicating if the select was successful
     */
    selectNextOption(): boolean;
    /**
     * Selects the previous option.
     * @returns a boolean indicating if the select was successful
     */
    selectPreviousOption(): boolean;
    /**
     * Selects or deselects all options
     * @returns a boolean indicating if the select was successful
     */
    toggleAllOptions(select?: boolean): boolean;
    /**
     * Selects all options. Only allowed in multiple select mode
     * @returns a boolean indicating if the select was successful
     */
    selectAllOptions(): boolean;
    /**
     * Clears all options. Only allowed in multiple select mode
     * @returns a boolean indicating if the unselect was successful
     */
    clearAllOptions(): boolean;
    /**
     *
     */
    trackOption(index: number, option: FormFieldOptionComponent): any;
    /**
     * Adds a keycode from KeyPress event to the autocomplete processor
     */
    protected progressiveAutoComplete(keyCode: number): void;
    /**
     * Selects an option by the keys entered. Only allowed in single select mode
     */
    private processAutoComplete;
    /**
     * Occurs whenever the internal value of this form control changes
     */
    protected onValueChanged(value: TModel): void;
    /**
     * Synchronizes the displayed and selected options with the actual form control value
     */
    protected syncSelectionChanged(value: TModel): void;
    /**
     * Base function for filter options by search string, will be called only if searchable to true
     */
    protected filterOptionBySearchString(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<OptionsFormFieldComponent<any, any>, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<OptionsFormFieldComponent<any, any>, never, never, { "valueComparator": "valueComparator"; "showSelectAll": "showSelectAll"; "trackBy": "trackBy"; "searchable": "searchable"; }, {}, ["options"], never, false, never>;
}
/**
 * Internal base component for SME form fields with options.
 * It simply removes the need to supply the string type parameter to FormFieldComponent
 * This class is exported from this file, but not meant to be exported from index.ts bundles.
 */
export declare abstract class SmeInternalOptionsFormFieldComponent<TModel> extends OptionsFormFieldComponent<Strings, TModel> {
    /**
     * Indicates if the select all option should be shown in multi-select mode
     */
    selectAllLabel: string;
    /**
     * assigns an Id to select all option for dropdowns
     */
    selectAllUtaId: string;
    /**
     * Internal class for sme options controls
     */
    constructor(injector: Injector);
    static ɵfac: i0.ɵɵFactoryDeclaration<SmeInternalOptionsFormFieldComponent<any>, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<SmeInternalOptionsFormFieldComponent<any>, never, never, { "selectAllLabel": "selectAllLabel"; "selectAllUtaId": "selectAllUtaId"; }, {}, never, never, false, never>;
}
export {};