/**
*
* carbon-angular v0.0.0 | tab.component.d.ts
*
* Copyright 2014, 2026 IBM
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { OnInit, EventEmitter, TemplateRef } from "@angular/core";
import * as i0 from "@angular/core";
/**
* The `Tab` component is a child of the `Tabs` component.
* It represents one `Tab` item and its content within a panel of other `Tab` items.
*
* `Tab` takes a string or `TemplateRef` for the header, and any content for the body of the tab.
* Disabled states should be handled by the application (ie. switch to the tab, but display some
* indication as to _why_ the tab is disabled).
*
* When the tab is selected the `select` output will be triggered.
* The `select` output will also be triggered for the active tab when the tabs are loaded or updated.
*
*
* Tab with string header:
*
* ```html
*
* tab 1 content
*
* ```
*
* Tab with custom header:
*
* ```html
*
*
* Hello Tab 1
*
*
*
* Tab 1 content
*
*
* Tab 2 content
*
*
* Tab 3 content
*
*
* ```
*/
export declare class Tab implements OnInit {
get hostId(): string;
get hostAriaLabelledby(): string;
get hostTabIndex(): number;
/**
* `hidden` + display keep inactive panels out of layout; `null` display when active preserves grid/flex.
*/
get hostHidden(): string;
get hostDisplay(): "block" | "none";
/**
* Set to `true` to have `Tab` items cached and not reloaded on tab switching.
*/
set cacheActive(shouldCache: boolean);
get cacheActive(): boolean;
private static counter;
tabContentClass: boolean;
panelRole: string;
panelAriaLive: string;
/**
* Boolean value reflects if the `Tab` is using a custom template for the heading.
* Default value is false.
*/
headingIsTemplate: boolean;
/**
* The `Tab`'s title to be displayed or custom template for the `Tab` heading.
*/
heading: string | TemplateRef;
/**
* Optional override for the `tabItem's`'s title attribute which is set in `TabHeaders`.
* `tabItem`'s title attribute is automatically set to `heading`.
*
* You might want to use this if you set `heading` to a `TemplateRef`.
*/
title: string;
/**
* Allows the user to pass data to the custom template for the `Tab` heading.
*/
context: any;
/**
* Indicates whether the `Tab` is active/selected.
* Determines whether its tab panel content is rendered.
*/
active: boolean;
/**
* Indicates whether or not the `Tab` item is disabled.
*/
disabled: boolean;
/**
* `tabindex` on the tab panel, the parent may set this to `null` when `isNavigation` is `true`.
*/
tabIndex: number;
/**
* Sets the id of the `Tab`. Will be uniquely generated if not provided.
*/
id: string;
/**
* Allows lifecycle hooks to be called on the rendered content.
*/
tabContent: TemplateRef;
/**
* Optional data for templates passed as implicit context.
*/
templateContext: any;
/**
* Optional template that renders an icon inside the `Tab` header.
* Useful for rendering a `cdsIcon` or any other icon next to the tab label.
*/
icon: TemplateRef;
/**
* Optional secondary label rendered below the primary tab label.
* Only displayed when the parent `Tabs` is using `type="contained"`.
*/
secondaryLabel: string;
/**
* Sets the aria-label of the close button when the parent `Tabs` uses `dismissable`.
*/
closeButtonAriaLabel: string;
/**
* Icon-only tab: pair with `icon` and `iconLabel`.
*/
iconOnly: boolean;
/**
* Icon-only tabs: accessible name and tooltip text.
*/
iconLabel: string;
/**
* **Preview**: Icon-only tabs — show a notification dot on the icon.
*/
badgeIndicator: boolean;
/**
* Icon-only tabs: tooltip show delay (ms).
*/
enterDelayMs: number;
/**
* Icon-only tabs: tooltip hide delay (ms).
*/
leaveDelayMs: number;
/**
* Icon-only tabs: open the tooltip on first render.
*/
isTooltipOpen: boolean;
/**
* Emits when this tab becomes selected.
*/
selected: EventEmitter;
/**
* Emits when this tab's close button is pressed.
*/
tabClose: EventEmitter;
protected _cacheActive: boolean;
/**
* Checks for custom heading template on initialization and updates the value
* of the boolean 'headingIsTemplate'.
*/
ngOnInit(): void;
/**
* Emit the status of the `Tab`, specifically 'select' and 'selected' properties.
*/
doSelect(): void;
/**
* Returns value indicating whether this `Tab` should be rendered in a tab panel.
*/
shouldRender(): boolean;
isTemplate(value: any): boolean;
static ɵfac: i0.ɵɵFactoryDeclaration;
static ɵcmp: i0.ɵɵComponentDeclaration;
}