elm-video/js/ports.js

130 lines
4.0 KiB
JavaScript

Object.defineProperty(TimeRanges.prototype, "polymnyVideoAsArray", {
get: function() {
var ret = [];
for (var i = 0; i < this.length; i++) {
ret.push({start: this.start(i), end: this.end(i)});
}
return ret;
}
});
Object.defineProperty(HTMLElement.prototype, "polymnyVideoDocument", {
get: function() {
return document;
}
});
function embed(options) {
if (!(options.node instanceof HTMLElement)) {
throw new Error("options.node must be an HTMLElement");
}
if (typeof options.url !== "string" && ! (options.url instanceof String)) {
throw new Error("options.url must be a string");
}
options.flags = options;
options.width = window.innerWidth;
options.height = window.innerHeight;
const app = Elm.Examples.Embed.init(options);
setupApp(app);
}
function setupApp(app) {
let hls;
app.ports.polymnyVideoInit.subscribe(function(arg) {
const video = document.getElementById(arg[0]);
if (Hls.isSupported()) {
hls = new Hls();
window.hls = hls;
hls.loadSource(arg[1]);
hls.on(Hls.Events.MANIFEST_PARSED, function(event, data) {
const availableQualities = hls.levels.map((l) => l.height);
availableQualities.unshift(0);
app.ports.polymnyVideoNowHasQualities.send(availableQualities);
});
hls.on(Hls.Events.LEVEL_SWITCHED, function(event, data) {
app.ports.polymnyVideoNowHasQuality.send({
auto: hls.autoLevelEnabled,
height: hls.levels[data.level].height
});
})
hls.on(Hls.Events.SUBTITLE_TRACKS_UPDATED, function(event, data) {
app.ports.polymnyVideoNowHasSubtitles.send(data.subtitleTracks);
});
hls.on(Hls.Events.SUBTITLE_TRACK_SWITCH, function(event, data) {
app.ports.polymnyVideoNowHasSubtitleTrack.send(data.id === -1 ? null : hls.subtitleTracks[data.id]);
});
hls.attachMedia(video);
} else if (video.canPlayType('application/vnd.apple.mpegurl')) {
video.src = arg[1];
}
});
app.ports.polymnyVideoPlayPause.subscribe(function(arg) {
const video = document.getElementById(arg);
if (video.paused) {
video.play();
} else {
video.pause();
}
});
app.ports.polymnyVideoSeek.subscribe(function(arg) {
const video = document.getElementById(arg[0]);
video.currentTime = arg[1];
});
app.ports.polymnyVideoRequestFullscreen.subscribe(function(arg) {
document.getElementById(arg + '-full').requestFullscreen();
});
app.ports.polymnyVideoExitFullscreen.subscribe(function(arg) {
document.exitFullscreen();
});
app.ports.polymnyVideoSetPlaybackRate.subscribe(function(arg) {
const video = document.getElementById(arg[0]);
video.playbackRate = arg[1];
});
app.ports.polymnyVideoSetQuality.subscribe(function(arg) {
var old = hls.currentLevel;
if (arg[1].auto) {
hls.currentLevel = -1;
} else {
hls.levels.forEach((level, levelIndex) => {
if (level.height === arg[1].height) {
hls.currentLevel = levelIndex;
}
});
}
if (old === hls.currentLevel) {
app.ports.polymnyVideoNowHasQuality.send({
auto: hls.autoLevelEnabled,
height: hls.currentLevel === -1 ? 0 : hls.levels[hls.currentLevel].height
});
}
});
app.ports.polymnyVideoSetVolume.subscribe(function(arg) {
const video = document.getElementById(arg[0]);
video.volume = arg[1].volume;
video.muted = arg[1].muted;
});
app.ports.polymnyVideoSetSubtitleTrack.subscribe(function(arg) {
hls.subtitleDisplay = arg[1] !== -1;
hls.subtitleTrack = arg[1];
});
}