timepiece/node_modules/lit-html/directives/until.d.ts

44 lines
1.6 KiB
TypeScript

/**
* @license
* Copyright 2017 Google LLC
* SPDX-License-Identifier: BSD-3-Clause
*/
import { Part } from '../lit-html.js';
import { AsyncDirective } from '../async-directive.js';
export declare class UntilDirective extends AsyncDirective {
private __lastRenderedIndex;
private __values;
private __weakThis;
private __pauser;
render(...args: Array<unknown>): unknown;
update(_part: Part, args: Array<unknown>): unknown;
disconnected(): void;
reconnected(): void;
}
/**
* Renders one of a series of values, including Promises, to a Part.
*
* Values are rendered in priority order, with the first argument having the
* highest priority and the last argument having the lowest priority. If a
* value is a Promise, low-priority values will be rendered until it resolves.
*
* The priority of values can be used to create placeholder content for async
* data. For example, a Promise with pending content can be the first,
* highest-priority, argument, and a non_promise loading indicator template can
* be used as the second, lower-priority, argument. The loading indicator will
* render immediately, and the primary content will render when the Promise
* resolves.
*
* Example:
*
* ```js
* const content = fetch('./content.txt').then(r => r.text());
* html`${until(content, html`<span>Loading...</span>`)}`
* ```
*/
export declare const until: (...values: unknown[]) => import("../directive.js").DirectiveResult<typeof UntilDirective>;
/**
* The type of the class that powers this directive. Necessary for naming the
* directive's return type.
*/
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