kopia lustrzana https://github.com/shoelace-style/shoelace
120 wiersze
3.4 KiB
TypeScript
120 wiersze
3.4 KiB
TypeScript
import '../icon-button/icon-button';
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import { classMap } from 'lit/directives/class-map.js';
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import { customElement, property, query } from 'lit/decorators.js';
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import { html } from 'lit';
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import { LocalizeController } from '../../utilities/localize';
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import { watch } from '../../internal/watch';
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import ShoelaceElement from '../../internal/shoelace-element';
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import styles from './tab.styles';
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import type { CSSResultGroup } from 'lit';
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let id = 0;
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/**
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* @summary Tabs are used inside [tab groups](/components/tab-group) to represent and activate [tab panels](/components/tab-panel).
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* @documentation https://shoelace.style/components/tab
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* @status stable
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* @since 2.0
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*
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* @dependency sl-icon-button
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*
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* @slot - The tab's label.
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*
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* @event sl-close - Emitted when the tab is closable and the close button is activated.
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*
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* @csspart base - The component's base wrapper.
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* @csspart close-button - The close button, an `<sl-icon-button>`.
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* @csspart close-button__base - The close button's exported `base` part.
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*/
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@customElement('sl-tab')
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export default class SlTab extends ShoelaceElement {
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static styles: CSSResultGroup = styles;
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private readonly localize = new LocalizeController(this);
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private readonly attrId = ++id;
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private readonly componentId = `sl-tab-${this.attrId}`;
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@query('.tab') tab: HTMLElement;
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/** The name of the tab panel this tab is associated with. The panel must be located in the same tab group. */
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@property({ reflect: true }) panel = '';
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/** Draws the tab in an active state. */
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@property({ type: Boolean, reflect: true }) active = false;
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/** Makes the tab closable and shows a close button. */
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@property({ type: Boolean }) closable = false;
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/** Disables the tab and prevents selection. */
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@property({ type: Boolean, reflect: true }) disabled = false;
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connectedCallback() {
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super.connectedCallback();
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this.setAttribute('role', 'tab');
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}
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private handleCloseClick() {
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this.emit('sl-close');
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}
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@watch('active')
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handleActiveChange() {
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this.setAttribute('aria-selected', this.active ? 'true' : 'false');
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}
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@watch('disabled')
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handleDisabledChange() {
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this.setAttribute('aria-disabled', this.disabled ? 'true' : 'false');
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}
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/** Sets focus to the tab. */
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focus(options?: FocusOptions) {
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this.tab.focus(options);
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}
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/** Removes focus from the tab. */
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blur() {
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this.tab.blur();
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}
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render() {
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// If the user didn't provide an ID, we'll set one so we can link tabs and tab panels with aria labels
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this.id = this.id.length > 0 ? this.id : this.componentId;
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return html`
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<div
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part="base"
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class=${classMap({
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tab: true,
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'tab--active': this.active,
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'tab--closable': this.closable,
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'tab--disabled': this.disabled
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})}
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tabindex=${this.disabled ? '-1' : '0'}
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>
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<slot></slot>
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${this.closable
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? html`
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<sl-icon-button
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part="close-button"
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exportparts="base:close-button__base"
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name="x-lg"
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library="system"
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label=${this.localize.term('close')}
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class="tab__close-button"
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@click=${this.handleCloseClick}
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tabindex="-1"
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></sl-icon-button>
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`
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: ''}
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</div>
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`;
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}
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}
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declare global {
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interface HTMLElementTagNameMap {
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'sl-tab': SlTab;
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}
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}
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