import { FocusableOption } from '@angular/cdk/a11y';
import { ChangeDetectorRef, ElementRef, EventEmitter, NgZone, OnDestroy } from '@angular/core';
import * as i0 from "@angular/core";
/** Event fired on an individual `granite-chip` element. */
export interface GraniteChipEvent {
    /** The chip the event was fired on. */
    chip: GraniteChipComponent;
}
/** Event object emitted by GraniteChip when selected or deselected. */
export declare class GraniteChipSelectionChangeEvent {
    /** Reference to the chip that emitted the event. */
    source: GraniteChipComponent;
    /** Whether the chip that emitted the event is selected. */
    selected: boolean;
    /** Whether the selection change was a result of a user interaction. */
    isUserInput: boolean;
}
export declare class GraniteChipComponent implements FocusableOption, OnDestroy {
    _elementRef: ElementRef;
    private _ngZone;
    private _changeDetectorRef;
    /** ARIA role that should be applied to the chip. */
    role: string;
    ariaLabel: string | null;
    ariaLabelledby: string | null;
    /** Emitted when the chip is selected or deselected. */
    readonly selectionChange: EventEmitter<GraniteChipSelectionChangeEvent>;
    /** Emitted when a chip is to be removed. */
    readonly removed: EventEmitter<GraniteChipEvent>;
    /** Emitted when the chip is destroyed. */
    readonly destroyed: EventEmitter<GraniteChipEvent>;
    /** Emits when the chip is focused. */
    readonly chipFocus: EventEmitter<GraniteChipEvent>;
    /** Emits when the chip is blurred. */
    readonly chipBlur: EventEmitter<GraniteChipEvent>;
    /** Whether the chip has focus. */
    _hasFocus: boolean;
    /** Whether the chip list is selectable */
    _chipListSelectable: boolean;
    /** Whether the chip list is in multi-selection mode. */
    _chipListMultiple: boolean;
    /** Whether the chip list as a whole is disabled. */
    _chipListDisabled: boolean;
    tabIndex: number;
    inputChip: boolean;
    protected _selected: boolean;
    protected _selectable: boolean;
    protected _disabled: boolean;
    protected _removable: boolean;
    protected _invalid: boolean;
    /** Whether the chip is selected. */
    get selected(): boolean;
    set selected(value: boolean);
    /** The value of the chip. Defaults to the text content inside `<granite-chip>` tags. */
    get value(): any;
    set value(val: any);
    private _value;
    /**
     * Whether or not the chip is selectable. When a chip is not selectable,
     * changes to its selected state are always ignored. By default a chip is
     * selectable, and it becomes non-selectable if its parent chip list is
     * not selectable.
     */
    get selectable(): boolean;
    set selectable(value: boolean);
    /** Whether the chip is disabled. Also the individual chips are disabled when chip list is disabled */
    get disabled(): boolean;
    set disabled(value: boolean);
    /**
     * Whether the chip can be removed from the list
     */
    get removable(): boolean;
    set removable(value: boolean);
    /** Whether the chip is in an invalid state. */
    get invalid(): boolean;
    set invalid(value: boolean);
    constructor(_elementRef: ElementRef, _ngZone: NgZone, _changeDetectorRef: ChangeDetectorRef, tabIndex?: string);
    ngOnDestroy(): void;
    /** Selects the chip. */
    select(isUserInput?: boolean): void;
    /** Deselects the chip. */
    deselect(): void;
    /** Toggles the current selected state of this chip. */
    toggleSelected(isUserInput?: boolean): boolean;
    /** Allows for programmatic focusing of the chip unless it's disabled. */
    focus(): void;
    /**
     * Allows for programmatic removal of the chip.
     * Called by the GraniteChipList when the DELETE or BACKSPACE keys are pressed.
     * Informs any listeners of the removal request. Does not remove the chip from the DOM.
     */
    remove(): void;
    /** Handles click events on the chip. */
    _handleClick(event: Event): void;
    /** Handle custom key presses. */
    _handleKeydown(event: KeyboardEvent): void;
    _handleRemoveClick(event: Event): void;
    _blur(): void;
    private _dispatchSelectionChange;
    /** The ARIA selected applied to the chip. */
    get ariaSelected(): string | null;
    static ɵfac: i0.ɵɵFactoryDeclaration<GraniteChipComponent, [null, null, { optional: true; }, { attribute: "tabindex"; }]>;
    static ɵcmp: i0.ɵɵComponentDeclaration<GraniteChipComponent, "granite-chip, granite-input-chip", ["graniteChip"], { "tabIndex": { "alias": "tabIndex"; "required": false; }; "role": { "alias": "role"; "required": false; }; "ariaLabel": { "alias": "aria-label"; "required": false; }; "ariaLabelledby": { "alias": "aria-labelledby"; "required": false; }; "selected": { "alias": "selected"; "required": false; }; "value": { "alias": "value"; "required": false; }; "selectable": { "alias": "selectable"; "required": false; }; "disabled": { "alias": "disabled"; "required": false; }; "removable": { "alias": "removable"; "required": false; }; "invalid": { "alias": "invalid"; "required": false; }; }, { "selectionChange": "selectionChange"; "removed": "removed"; "destroyed": "destroyed"; "chipFocus": "chipFocus"; "chipBlur": "chipBlur"; }, never, ["*"], false, never>;
}