import { TemplatePortal } from '@angular/cdk/portal';
import { OnChanges, OnDestroy, OnInit, SimpleChanges, TemplateRef, ViewContainerRef } from '@angular/core';
import { Subject } from 'rxjs';
import { TsTabLabelDirective } from './../label/tab-label.directive';
/**
 * An individual tab component
 *
 * @example
 * <ts-tab
 *               ariaLabel="My label"
 *               ariaLabelledby="myId"
 *               [isDisabled]="true"
 *               label="First"
 * >
 *               My tab content!
 * </ts-tab>
 *
 * <example-url>https://getterminus.github.io/ui-demos-release/components/tabs</example-url>
 */
export declare class TsTabComponent implements OnInit, OnChanges, OnDestroy {
    private viewContainerRef;
    /**
     * Define a unique ID for every instance
     */
    id: number;
    /**
     * Portal that will be the hosted content of the tab
     */
    private contentPortal;
    /**
     * Emits whenever the internal state of the tab changes
     */
    readonly stateChanges: Subject<void>;
    /**
     * The relatively indexed position where 0 represents the center, negative numbers are left, and positive numbers represent the right.
     */
    position: number | null;
    /**
     * The initial relatively index origin of the tab if it was created and selected after there was already a selected tab.
     * Provides context of what position the tab should originate from.
     */
    origin: number | null;
    /**
     * Whether the tab is currently active
     */
    isActive: boolean;
    /**
     * Provides quick access to the content portal
     */
    get content(): TemplatePortal | null;
    /**
     * Template provided in the tab content that will be used if present, used to enable lazy-loading
     */
    explicitContent: TemplateRef<any> | undefined;
    /**
     * Template inside the TsTabComponent view that contains an `<ng-content>`
     */
    implicitContent: TemplateRef<any>;
    /**
     * Content for the tab label given by `<ng-template tsTabLabel>`
     */
    templateLabel: TsTabLabelDirective;
    /**
     * Aria label for the tab
     */
    ariaLabel: string | undefined;
    /**
     * Reference to the element that the tab is labelled by.
     *
     * NOTE: Will be cleared if `aria-label` is set at the same time.
     */
    ariaLabelledby: string | undefined;
    /**
     * Define if the tab is disabled
     */
    isDisabled: boolean;
    /**
     * Simple text label for the tab (used when there is no template label)
     */
    label: string;
    constructor(viewContainerRef: ViewContainerRef);
    /**
     * Inject the tab content
     */
    ngOnInit(): void;
    /**
     * Trigger event emitter for property changes
     *
     * @param changes
     */
    ngOnChanges(changes: SimpleChanges): void;
    /**
     * Clean up any subscriptions
     */
    ngOnDestroy(): void;
}