109 lines
3.6 KiB
JavaScript
109 lines
3.6 KiB
JavaScript
import { MediaChromeButton } from "./media-chrome-button.js";
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import { globalThis, document } from "./utils/server-safe-globals.js";
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import { MediaUIEvents, MediaUIAttributes } from "./constants.js";
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import { verbs } from "./labels/labels.js";
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import { getBooleanAttr, setBooleanAttr } from "./utils/element-utils.js";
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const { MEDIA_TIME_IS_LIVE, MEDIA_PAUSED } = MediaUIAttributes;
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const { MEDIA_SEEK_TO_LIVE_REQUEST, MEDIA_PLAY_REQUEST } = MediaUIEvents;
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const indicatorSVG = '<svg viewBox="0 0 6 12"><circle cx="3" cy="6" r="2"></circle></svg>';
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const slotTemplate = document.createElement("template");
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slotTemplate.innerHTML = /*html*/
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`
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<style>
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:host { --media-tooltip-display: none; }
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slot[name=indicator] > *,
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:host ::slotted([slot=indicator]) {
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${/* Override styles for icon-only buttons */
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""}
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min-width: auto;
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fill: var(--media-live-button-icon-color, rgb(140, 140, 140));
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color: var(--media-live-button-icon-color, rgb(140, 140, 140));
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}
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:host([${MEDIA_TIME_IS_LIVE}]:not([${MEDIA_PAUSED}])) slot[name=indicator] > *,
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:host([${MEDIA_TIME_IS_LIVE}]:not([${MEDIA_PAUSED}])) ::slotted([slot=indicator]) {
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fill: var(--media-live-button-indicator-color, rgb(255, 0, 0));
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color: var(--media-live-button-indicator-color, rgb(255, 0, 0));
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}
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:host([${MEDIA_TIME_IS_LIVE}]:not([${MEDIA_PAUSED}])) {
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cursor: not-allowed;
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}
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</style>
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<slot name="indicator">${indicatorSVG}</slot>
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${/*
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A new line between spacer and text creates inconsistent spacing
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between slotted items and default slots.
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*/
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""}
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<slot name="spacer"> </slot><slot name="text">LIVE</slot>
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`;
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const updateAriaAttributes = (el) => {
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const isPausedOrNotLive = el.mediaPaused || !el.mediaTimeIsLive;
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const label = isPausedOrNotLive ? verbs.SEEK_LIVE() : verbs.PLAYING_LIVE();
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el.setAttribute("aria-label", label);
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isPausedOrNotLive ? el.removeAttribute("aria-disabled") : el.setAttribute("aria-disabled", "true");
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};
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class MediaLiveButton extends MediaChromeButton {
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static get observedAttributes() {
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return [...super.observedAttributes, MEDIA_PAUSED, MEDIA_TIME_IS_LIVE];
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}
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constructor(options = {}) {
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super({ slotTemplate, ...options });
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}
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connectedCallback() {
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updateAriaAttributes(this);
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super.connectedCallback();
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}
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attributeChangedCallback(attrName, oldValue, newValue) {
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super.attributeChangedCallback(attrName, oldValue, newValue);
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updateAriaAttributes(this);
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}
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/**
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* @type {boolean} Is the media paused
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*/
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get mediaPaused() {
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return getBooleanAttr(this, MediaUIAttributes.MEDIA_PAUSED);
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}
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set mediaPaused(value) {
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setBooleanAttr(this, MediaUIAttributes.MEDIA_PAUSED, value);
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}
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/**
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* @type {boolean} Is the media playback currently live
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*/
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get mediaTimeIsLive() {
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return getBooleanAttr(this, MediaUIAttributes.MEDIA_TIME_IS_LIVE);
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}
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set mediaTimeIsLive(value) {
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setBooleanAttr(this, MediaUIAttributes.MEDIA_TIME_IS_LIVE, value);
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}
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handleClick() {
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if (!this.mediaPaused && this.mediaTimeIsLive)
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return;
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this.dispatchEvent(
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new globalThis.CustomEvent(MEDIA_SEEK_TO_LIVE_REQUEST, {
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composed: true,
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bubbles: true
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})
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);
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if (this.hasAttribute(MEDIA_PAUSED)) {
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this.dispatchEvent(
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new globalThis.CustomEvent(MEDIA_PLAY_REQUEST, {
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composed: true,
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bubbles: true
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})
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);
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}
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}
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}
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if (!globalThis.customElements.get("media-live-button")) {
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globalThis.customElements.define("media-live-button", MediaLiveButton);
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}
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var media_live_button_default = MediaLiveButton;
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export {
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media_live_button_default as default
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};
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