invidious/assets/js/invidious_iframe_api.js
bonjinnorenka 26f9e8bf0d
improve type check
Co-authored-by: AHOHNMYC <24810600+AHOHNMYC@users.noreply.github.com>
2023-08-30 00:26:20 +09:00

387 lines
15 KiB
JavaScript

class invidious_embed{
static widgetid = 0;
static eventname_table = {onPlaybackRateChange:'ratechange',onStateChange:'statechange',onerror:'error'};
static api_promise = false;
addEventListener(eventname,func){
if(eventname in invidious_embed.eventname_table){
this.eventobject[invidious_embed.eventname_table[eventname]].push(func);
}
else{
try{
this.eventobject[eventname].push(func);
}
catch{}
}
}
removeEventListner(eventname,func){
let internal_eventname;
if(eventname in invidious_embed.eventname_table){
internal_eventname = invidious_embed.eventname_table[eventname];
}
else{
internal_eventname = eventname;
}
this.eventobject[internal_eventname] = this.eventobject[internal_eventname].fillter(x=>x!==func);
}
Player(element,options){
this.player_status = -1;
this.error_code = 0;
this.volume = 100;
this.eventobject = {ready:[],ended:[],error:[],ratechange:[],volumechange:[],waiting:[],timeupdate:[],loadedmetadata:[],play:[],seeking:[],seeked:[],playerresize:[],pause:[],statechange:[]};
var replace_elemnt;
if(element===undefined||element===null){
throw 'Please, pass element id or HTMLElement as first argument';
}
else if(typeof element==='string'){
replace_elemnt = document.getElementById(element);
}
else{
replace_elemnt = element;
}
var iframe_src = '';
if(options.host!==undefined&&options.host!==""){
iframe_src = new URL(options.host).origin;
}
else{
iframe_src = 'https://vid.puffyan.us';//I set most hot instanse but this may need discuss or change ay to default instanse
}
this.target_origin = iframe_src.slice();
iframe_src += '/embed/';
if(typeof options.videoId==='string'&&options.videoId.length===11){
iframe_src += options.videoId;
this.videoId = options.videoId;
}
else{
this.error_code = 2;
this.event_executor('error');
}
var search_params = new URLSearchParams('');
search_params.append('widgetid',invidious_embed.widgetid);
this.widgetid = invidious_embed.widgetid;
invidious_embed.widgetid++;
search_params.append('origin',location.origin);
search_params.append('enablejsapi','1');
if(typeof options.playerVars==='object'){
this.option_playerVars = options.playerVars;
for (let x in options.playerVars){
if(typeof x==='string'&&typeof options.playerVars[x]==='string'){
search_params.append(x,options.playerVars[x]);
}
}
if(options.playerVars.autoplay===undefined){
search_params.append('autoplay','0');
}
}
iframe_src += "?" + search_params.toString();
if(options.events!==undefined&&typeof options.events==='object'){
for(let x in options.events){
this.addEventListener(x,options.events[x]);
}
}
this.player_iframe = document.createElement("iframe");
this.loaded = false;
this.addEventListener('loadedmetadata',()=>{this.event_executor('ready');this.loaded=true});
this.addEventListener('loadedmetadata',()=>{this.setVolume(this.volume)});
this.player_iframe.src = iframe_src;
if (typeof options.width === 'number'){
this.player_iframe.width = options.width;
}
else{
if(document.body.clientWidth < 640){
this.player_iframe.width = document.body.clientWidth;
}
else{
this.player_iframe.width = 640;
}
}
if(options.width!==undefined&&typeof options.width==='number'){
this.player_iframe.width = options.width;
}
else{
this.player_iframe.height = this.player_iframe.width * (9/16);
}
this.player_iframe.style.border = "none";
replace_elemnt.replaceWith(this.player_iframe);
this.eventdata = {};
return this;
}
postMessage(data){
var additionalInfo = {'origin':location.origin,'widgetid':String(this.widgetid),'target':'invidious_control'};
data = Object.assign(additionalInfo,data);
this.player_iframe.contentWindow.postMessage(data,this.target_origin);
}
event_executor(eventname){
var execute_functions = this.eventobject[eventname];
var return_data = {data:undefined,target:this};
if(eventname==='statechange'){
return_data.data = this.getPlayerState();
}
for(var x=0;x<execute_functions.length;x++){
try{
execute_functions[x](return_data);
}
catch{}
}
}
receiveMessage(message){
if(message.data.from==='invidious_control'&&message.data.widgetid===String(this.widgetid)){
switch(message.data.message_kind){
case 'info_return':
var promise_array = this.message_wait[message.data.command];
for(var x=0;x<promise_array.length;x++){
if(message.data.command==='getvolume'){
promise_array[x](message.data.value*100);
}
else{
promise_array[x](message.data.value);
}
}
this.message_wait[message.data.command] = [];
break;
case 'event':
if (typeof message.data.eventname === 'string') {
this.event_executor(message.data.eventname);
var previous_status = this.player_status;
switch(message.data.eventname){
case 'ended':
this.player_status = 0;
break;
case 'play':
this.player_status = 1;
break;
case 'timeupdate':
this.player_status = 1;
this.eventdata = Object.assign({},this.eventdata,message.data.value);
break;
case 'pause':
this.player_status = 2;
break;
case 'waiting':
this.player_status = 3;
break;
case 'loadedmetadata':
this.eventdata = Object.assign({},this.eventdata,message.data.value);
break;
}
if(previous_status!==this.player_status){
this.event_executor('statechange');
}
}
}
}
}
promise_resolve(){
var res_outer;
var pro = new Promise((res,rej)=>{res_outer=res});
return {'promise':pro,'resolve':res_outer};
}
promise_send_event(event_name){
if(invidious_embed.api_promise){
var pro_object = this.promise_resolve();
this.message_wait[event_name].push(pro_object.resolve);
this.postMessage({eventname:event_name});
return pro_object.promise;
}
else{
return this.eventdata[event_name];
}
}
getPlayerState(){
return this.player_status;
}
playVideo(){
this.postMessage({eventname:'play'});
}
pauseVideo(){
this.postMessage({eventname:'pause'});
}
getVolume(){
return this.promise_send_event('getvolume');
}
setVolume(volume){
volume = Number(volume);
this.volume = volume;
if(volume!==NaN&&volume!=undefined&&volume>=0&&volume<=100){
this.postMessage({eventname:'setvolume',value:volume/100});
}
}
getIframe(){
return this.player_iframe;
}
destroy(){
this.player_iframe.remove();
}
mute(){
this.postMessage({eventname:'setmutestatus',value:true});
}
unMute(){
this.postMessage({eventname:'setmutestatus',value:false});
}
isMuted(){
return this.promise_send_event('getmutestatus');
}
seekTo(seconds,allowSeekAhead){//seconds must be a number and allowSeekAhead is ignore
seconds = Number(seconds);
if(seconds!==NaN&&seconds!==undefined){
this.postMessage({eventname:'seek',value:seconds});
}
}
setSize(width,height){//width and height must be Number
this.player_iframe.width = Number(width);
this.player_iframe.height = Number(height);
}
getPlaybackRate(){
return this.promise_send_event('getplaybackrate');
}
setPlaybackRate(suggestedRate){//suggestedRate must be number.this player allow not available playback rate such as 1.4
suggestedRate = Number(suggestedRate);
if(suggestedRate!==NaN&&suggestedRate!==undefined){
this.postMessage({eventname:'setplaybackrate',value:suggestedRate});
}
}
getAvailablePlaybackRates(){
return this.promise_send_event('getavailableplaybackrates');
}
playOtherVideoById(option,autoplay,startSeconds_arg){//internal fuction
let videoId = '';
let startSeconds = -1;
let endSeconds = -1;
let mediaContetUrl = '';
if(typeof option==='string'){
if(option.length===11){
videoId = option
}
else{
mediaContetUrl = option;
}
if (typeof startSeconds_arg === 'number') {
startSeconds = startSeconds_arg;
}
}
else if(typeof option==='object'){
if(option.videoId!==undefined&&typeof option.videoId==='string'){
if(option.videoId.length==11){
videoId = option.videoId;
}
else{
this.error_code = 2;
this.event_executor('error');
}
}
else if (typeof option.mediaContentUrl === 'string') {
mediaContetUrl = option.mediaContentUrl;
}
else{
this.error_code = 2;
this.event_executor('error');
}
if(option.startSeconds!==undefined&&typeof option.startSeconds==='number'&&option.startSeconds>=0){
startSeconds = option.startSeconds;
}
if(option.endSeconds!==undefined&&typeof option.endSeconds==='number'&&option.endSeconds>=0){
endSeconds = option.endSeconds;
}
}
if(mediaContetUrl.length>0){
var tmp_videoId = '';
if(mediaContetUrl.indexOf('/v/')!==-1){
var end_pos = mediaContetUrl.length-1;
if(mediaContetUrl.indexOf('?')!==-1){
end_pos = mediaContetUrl.indexOf('?');
}
tmp_videoId = mediaContetUrl.substring(mediaContetUrl.indexOf('/v/'),end_pos);
}
else{
tmp_videoId = new URL(mediaContetUrl).searchParams.get('v');
}
if(tmp_videoId===null||tmp_videoId.length!==11){
this.error_code = 2;
this.event_executor('error');
}
videoId = tmp_videoId;
}
var iframe_sorce = this.target_origin.slice();
iframe_sorce += "/embed/" + videoId;
this.videoId = videoId;
var search_params = new URLSearchParams('');
search_params.append('origin',location.origin);
search_params.append('enablejsapi','1');
search_params.append('widgetid',invidious_embed.widgetid);
this.widgetid = invidious_embed.widgetid;
invidious_embed.widgetid++;
if(autoplay){
search_params.append('autoplay',1);
}
else{
search_params.append('autoplay',0);
}
if(this.option_playerVars!==undefined){
for(var x in this.option_playerVars){
if(x!=='autoplay'&&x!=='start'&&x!=='end'){
search_params.append(x,this.option_playerVars[x]);
}
}
}
if(startSeconds!==-1&&startSeconds>=0){
search_params.append('start',startSeconds);
}
if(endSeconds!==-1&&endSeconds>=0){
if(endSeconds>startSeconds){
search_params.append('end',endSeconds);
}
else{
throw 'invalid end seconds';
}
}
iframe_sorce += "?" + search_params.toString();
this.player_iframe.src = iframe_sorce;
if(autoplay){
this.player_status = 5;
}
this.eventdata = {};
}
loadVideoById(option,startSeconds){
this.playOtherVideoById(option,true,startSeconds);
}
cueVideoById(option,startSeconds){
this.playOtherVideoById(option,false,startSeconds);
}
cueVideoByUrl(option,startSeconds){
this.playOtherVideoById(option,false,startSeconds);
}
loadVideoByUrl(option,startSeconds){
this.playOtherVideoById(option,true,startSeconds);
}
getDuration(){
return this.promise_send_event('getduration');
}
getVideoUrl(){
return this.target_origin + "/watch?v=" + this.videoId;
}
async getVideoEmbedCode(){
var title = await this.getVideoTitle();
return '<iframe width="560" height="315" src="' + this.target_origin + "/embed/" + this.videoId + '" title="' + title.replace('"','') + '" frameborder="0" allow="autoplay;encrypted-media;picture-in-picture; web-share" allowfullscreen></iframe>';
}
getCurrentTime(){
return this.promise_send_event('getcurrenttime');
}
constructor(element,options){
this.Player(element,options);
window.addEventListener('message',(ms)=>{this.receiveMessage(ms)});
this.message_wait = {getvolume:[],getmutestatus:[],getduration:[],getcurrenttime:[],getplaybackrate:[],getavailableplaybackrates:[],gettitle:[]};
}
async getVideoData(){
return {video_id:this.videoId,title:await this.promise_send_event('gettitle')};
}
}
function invidious_ready(func){
if(typeof func==='function'){
func();
}
}
const invidious = {Player:invidious_embed,PlayerState:{ENDED:0,PLAYING:1,PAUSED:2,BUFFERING:3,CUED:5},ready:invidious_ready};
try{
onInvidiousIframeAPIReady();
}
catch{}