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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,72 +1,53 @@ | ||
| // Web Components: Extending Native Elements, A working example | ||
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| import { CustomVideoElement } from 'custom-media-element'; | ||
| import Hls from 'hls.js'; | ||
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| class HLSVideoElement extends CustomVideoElement { | ||
| constructor() { | ||
| super(); | ||
| } | ||
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| get src() { | ||
| // Use the attribute value as the source of truth. | ||
| // No need to store it in two places. | ||
| // This avoids needing a to read the attribute initially and update the src. | ||
| return this.getAttribute('src'); | ||
| attributeChangedCallback(attrName, oldValue, newValue) { | ||
| if (attrName !== 'src') { | ||
| super.attributeChangedCallback(attrName, oldValue, newValue); | ||
| } | ||
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| if (attrName === 'src' && oldValue != newValue) { | ||
| this.load(); | ||
| } | ||
| } | ||
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| set src(val) { | ||
| // If being set by attributeChangedCallback, | ||
| // dont' cause an infinite loop | ||
| if (val !== this.src) { | ||
| this.setAttribute('src', val); | ||
| #destroy() { | ||
| if (this.api) { | ||
| this.api.detachMedia(); | ||
| this.api.destroy(); | ||
| this.api = null; | ||
| } | ||
| } | ||
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| load() { | ||
| this.#destroy(); | ||
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| if (!this.src) { | ||
| return; | ||
| } | ||
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| if (Hls.isSupported()) { | ||
| var hls = new Hls({ | ||
| // Kind of like preload metadata, but causes spinner. | ||
| // autoStartLoad: false, | ||
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| var hls = new Hls({ | ||
| // Mimic the media element with an Infinity duration | ||
| // for live streams | ||
| liveDurationInfinity: true | ||
| }); | ||
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| hls.loadSource(this.src); | ||
| hls.attachMedia(this.nativeEl); | ||
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| } else if (this.nativeEl.canPlayType('application/vnd.apple.mpegurl')) { | ||
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| this.nativeEl.src = this.src; | ||
| } | ||
| } | ||
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| // play() { | ||
| // if (this.readyState === 0 && this.networkState < 2) { | ||
| // this.load(); | ||
| // this.hls.on(Hls.Events.MANIFEST_PARSED,function() { | ||
| // video.play(); | ||
| // | ||
| // return this.nativeEl.play(); | ||
| // } | ||
| // } | ||
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| connectedCallback() { | ||
| this.load(); | ||
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| // Not preloading might require faking the play() promise | ||
| // so that you can call play(), call load() within that | ||
| // But wait until MANIFEST_PARSED to actually call play() | ||
| // on the nativeEl. | ||
| // if (this.preload === 'auto') { | ||
| // this.load(); | ||
| // } | ||
| } | ||
| } | ||
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| if (!window.customElements.get('hls-video')) { | ||
| window.customElements.define('hls-video', HLSVideoElement); | ||
| window.HLSVideoElement = HLSVideoElement; | ||
| if (globalThis.customElements && !globalThis.customElements.get('hls-video')) { | ||
| globalThis.customElements.define('hls-video', HLSVideoElement); | ||
| } | ||
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| export default HLSVideoElement; |