media-chrome/dist/media-live-button.js

Custom elements (web components) for making audio and video player controls that look great in your website or app.

import { MediaChromeButton } from "./media-chrome-button.js";
import { globalThis } from "./utils/server-safe-globals.js";
import { MediaUIEvents, MediaUIAttributes } from "./constants.js";
import { getBooleanAttr, setBooleanAttr } from "./utils/element-utils.js";
import { t } from "./utils/i18n.js";
const { MEDIA_TIME_IS_LIVE, MEDIA_PAUSED } = MediaUIAttributes;
const { MEDIA_SEEK_TO_LIVE_REQUEST, MEDIA_PLAY_REQUEST } = MediaUIEvents;
const indicatorSVG = '<svg viewBox="0 0 6 12" aria-hidden="true"><circle cx="3" cy="6" r="2"></circle></svg>';
function getSlotTemplateHTML(_attrs) {
  return (
    /*html*/
    `
    <style>
      :host { --media-tooltip-display: none; }
      
      slot[name=indicator] > *,
      :host ::slotted([slot=indicator]) {
        ${/* Override styles for icon-only buttons */
    ""}
        min-width: auto;
        fill: var(--media-live-button-icon-color, rgb(140, 140, 140));
        color: var(--media-live-button-icon-color, rgb(140, 140, 140));
      }

      :host([${MEDIA_TIME_IS_LIVE}]:not([${MEDIA_PAUSED}])) slot[name=indicator] > *,
      :host([${MEDIA_TIME_IS_LIVE}]:not([${MEDIA_PAUSED}])) ::slotted([slot=indicator]) {
        fill: var(--media-live-button-indicator-color, rgb(255, 0, 0));
        color: var(--media-live-button-indicator-color, rgb(255, 0, 0));
      }

      :host([${MEDIA_TIME_IS_LIVE}]:not([${MEDIA_PAUSED}])) {
        cursor: var(--media-cursor, not-allowed);
      }

      slot[name=text]{
        text-transform: uppercase;
      }

    </style>

    <slot name="indicator">${indicatorSVG}</slot>
    ${/*
      A new line between spacer and text creates inconsistent spacing
      between slotted items and default slots.
    */
    ""}
    <slot name="spacer">&nbsp;</slot><slot name="text">${t("live")}</slot>
  `
  );
}
const updateAriaAttributes = (el) => {
  var _a;
  const isPausedOrNotLive = el.mediaPaused || !el.mediaTimeIsLive;
  const label = isPausedOrNotLive ? t("seek to live") : t("playing live");
  el.setAttribute("aria-label", label);
  const textSlot = (_a = el.shadowRoot) == null ? void 0 : _a.querySelector('slot[name="text"]');
  if (textSlot)
    textSlot.textContent = t("live");
  isPausedOrNotLive ? el.removeAttribute("aria-disabled") : el.setAttribute("aria-disabled", "true");
};
class MediaLiveButton extends MediaChromeButton {
  static get observedAttributes() {
    return [
      ...super.observedAttributes,
      MEDIA_TIME_IS_LIVE,
      MEDIA_PAUSED
    ];
  }
  connectedCallback() {
    super.connectedCallback();
    updateAriaAttributes(this);
  }
  attributeChangedCallback(attrName, oldValue, newValue) {
    super.attributeChangedCallback(attrName, oldValue, newValue);
    updateAriaAttributes(this);
  }
  /**
   * @type {boolean} Is the media paused
   */
  get mediaPaused() {
    return getBooleanAttr(this, MediaUIAttributes.MEDIA_PAUSED);
  }
  set mediaPaused(value) {
    setBooleanAttr(this, MediaUIAttributes.MEDIA_PAUSED, value);
  }
  /**
   * @type {boolean} Is the media playback currently live
   */
  get mediaTimeIsLive() {
    return getBooleanAttr(this, MediaUIAttributes.MEDIA_TIME_IS_LIVE);
  }
  set mediaTimeIsLive(value) {
    setBooleanAttr(this, MediaUIAttributes.MEDIA_TIME_IS_LIVE, value);
  }
  handleClick() {
    if (!this.mediaPaused && this.mediaTimeIsLive)
      return;
    this.dispatchEvent(
      new globalThis.CustomEvent(MEDIA_SEEK_TO_LIVE_REQUEST, {
        composed: true,
        bubbles: true
      })
    );
    if (this.hasAttribute(MEDIA_PAUSED)) {
      this.dispatchEvent(
        new globalThis.CustomEvent(MEDIA_PLAY_REQUEST, {
          composed: true,
          bubbles: true
        })
      );
    }
  }
}
MediaLiveButton.getSlotTemplateHTML = getSlotTemplateHTML;
if (!globalThis.customElements.get("media-live-button")) {
  globalThis.customElements.define("media-live-button", MediaLiveButton);
}
var media_live_button_default = MediaLiveButton;
export {
  media_live_button_default as default
};