@nysds/nys-backtotop/dist/nys-backtotop.js

The Back To Top component from the NYS Design System.

import { css as C, LitElement as O, html as A } from "lit";
/*!
   * ▒█▄░▒█ ▒█░░▒█ ▒█▀▀▀█ ▒█▀▀▄ ▒█▀▀▀█
   * ▒█▒█▒█ ▒█▄▄▄█ ░▀▀▀▄▄ ▒█░▒█ ░▀▀▀▄▄
   * ▒█░░▀█ ░░▒█░░ ▒█▄▄▄█ ▒█▄▄▀ ▒█▄▄▄█
   *
   * Back To Top Component
   * Part of the New York State Design System
   * Repository: https://github.com/its-hcd/nysds
   * License: MIT
*/
/**
 * @license
 * Copyright 2019 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */
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/**
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 * Copyright 2017 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */
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/**
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 * Copyright 2017 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */
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/**
 * @license
 * Copyright 2017 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */
function U(r) {
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}
const N = C`
  :host {
  }

  .nys-backtotop {
    --_nys-button-radius-left: var(--nys-radius-round, 1776px);
    --_nys-button-radius-right: var(--nys-radius-round, 1776px);
    --_nys-button-padding-y: var(--nys-space-100, 8px);
    --_nys-button-padding-x: var(--nys-space-200, 16px);

    position: fixed;
    bottom: 1rem;
    right: 1rem;
    z-index: 9999;
    display: none;
  }

  .left {
    left: 1rem;
    right: auto;
  }

  .visible {
    display: inline-flex;
  }
`;
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};
const E = class E extends O {
  constructor() {
    super(), this.position = "right", this.visible = !1, this.isMobile = !1, this.forceVisible = !1, this._handleScroll = this._handleScroll.bind(this), this._handleResize = this._handleResize.bind(this), this.mediaQuery = window.matchMedia("(max-width: 480px)");
  }
  connectedCallback() {
    super.connectedCallback(), this.forceVisible = this.hasAttribute("visible"), window.addEventListener("scroll", this._handleScroll), this.mediaQuery.addEventListener("change", this._handleResize), this._handleResize();
  }
  disconnectedCallback() {
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  }
  _handleScroll() {
    if (this.forceVisible) return;
    const t = window.innerHeight, e = document.documentElement.scrollHeight;
    this.visible = e >= t * 4 && window.scrollY > t * 1.5;
  }
  _scrollToTop() {
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  }
  _handleResize() {
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  }
  render() {
    const t = [
      "nys-backtotop",
      this.position,
      this.visible ? "visible" : ""
    ].filter(Boolean).join(" ");
    return A`<nys-button
      id="nys-backtotop"
      prefixIcon="chevron_up"
      variant="outline"
      label="Back to top"
      size="sm"
      class="${t}"
      .onClick=${this._scrollToTop}
      ?circle=${this.isMobile}
    ></nys-button>`;
  }
};
E.styles = N;
let l = E;
f([
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], l.prototype, "position");
f([
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], l.prototype, "visible");
f([
  U()
], l.prototype, "isMobile");
f([
  U()
], l.prototype, "forceVisible");
customElements.get("nys-backtotop") || customElements.define("nys-backtotop", l);
export {
  l as NysBacktotop
};
//# sourceMappingURL=nys-backtotop.js.map