From f112c9977963edfca2ddba6de2ef83f0d8979cf4 Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Sun, 5 Dec 2021 14:56:02 +0800
Subject: Roll Pineapple Cloud Music to c1dd09c.

---
 libs/music/pcm                      |  18 ++--
 libs/music/player.d/cgi-bin/pcm.cgi |  76 +++++++++-----
 libs/music/player.d/pcm.js          | 200 +++++++++++++++++++++++++-----------
 libs/music/player.d/progress-bar.js |  97 +++++++++++++++++
 4 files changed, 296 insertions(+), 95 deletions(-)
 create mode 100644 libs/music/player.d/progress-bar.js

(limited to 'libs/music')

diff --git a/libs/music/pcm b/libs/music/pcm
index adb3458..7152edf 100644
--- a/libs/music/pcm
+++ b/libs/music/pcm
@@ -6,6 +6,14 @@
 <meta name="theme-color" content="#f44336">
 <link rel="stylesheet" href="/libs/music/player.d/w3.css">
 <style>
+	@font-face{
+		font-family: 'CMU Typewriter Text w';
+		src: url(/cmunbtl.woff);
+	}
+	body, h1, h2, h3, h4 {
+		font-family: 'CMU Typewriter Text w', 'CMU Typewriter Text', 'TeX Gyre Cursor', 'FreeMono', 'Courier New', Courier, monospace;
+		font-variant-ligatures: none;
+	}
 	.w3-sidenav ul li {padding-left: 2px;}
 	#playlist li {word-break: break-all;}
 	.ellipsis {overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}
@@ -52,7 +60,7 @@
 
 <nav class="w3-sidenav w3-collapse w3-light-grey w3-animate-left w3-card-2" style="z-index: 3; width: 250px; display: none;" id="mySidenav">
 <header class="w3-container w3-dark-grey">
-	<h2>Albums <a href="javascript:void(0)" onclick="w3_close()" class="w3-right w3-xlarge w3-hide-large w3-closenav" title="close sidenav">×</a></h2>
+	<h2>Folders <a href="javascript:void(0)" onclick="w3_close()" class="w3-right w3-xlarge w3-hide-large w3-closenav" title="close sidenav">×</a></h2>
 </header>
 <ul class="w3-ul" style="margin-bottom: 120px;" id="folderlist">
 </ul>
@@ -60,7 +68,7 @@
 <div class="w3-overlay w3-hide-large w3-animate-opacity" onclick="w3_close()" style="cursor: pointer; display: none;" id="myOverlay"></div>
 <div class="w3-main" style="margin-left:250px;">
 	<header class="w3-container w3-red w3-top">
-		<h2 class="ellipsis"><span class="w3-opennav w3-xlarge w3-left w3-hide-large" onclick="w3_open()" id="openNav">&#9776;</span>&nbsp;Pineapple Cloud Music</h2>
+		<h2 class="ellipsis"><span class="w3-opennav w3-xlarge w3-left w3-hide-large" onclick="w3_open()" id="openNav">&#9776;</span>&nbsp;<span id="server-name">Private Cloud Music</span></h2>
 	</header>
 	<header class="w3-container w3-yellow"><h2 class="ellipsis">You can't see me</h2></header>
 	<ul class="w3-ul w3-hoverable w3-pale-yellow" id="subfolderlist">
@@ -83,10 +91,7 @@
 			</div>
 		</div>
 		<div class="w3-container">
-			<div id="progressbar" class="w3-progress-container">
-				<div id="bufferbar" class="w3-progressbar" style="background-color:#AAA; width:0%"></div>
-				<div id="timebar" class="w3-progressbar w3-blue" style="width:0%"></div>
-			</div>
+			<pcm-progress id="progress-bar"></pcm-progress>
 		</div>
 		<div class="w3-container w3-center" style="padding:6px 0px;">
 			<button class="w3-btn w3-tiny" id="btn-prev">&lt;&lt;</button>
@@ -98,6 +103,7 @@
 	</div>
 </div> 
 
+<script src="/libs/music/player.d/progress-bar.js"></script>
 <script src="/libs/music/player.d/pcm.js"></script>
 <script>
 function w3_open() {
diff --git a/libs/music/player.d/cgi-bin/pcm.cgi b/libs/music/player.d/cgi-bin/pcm.cgi
index 2d5eaca..a1dc27f 100755
--- a/libs/music/player.d/cgi-bin/pcm.cgi
+++ b/libs/music/player.d/cgi-bin/pcm.cgi
@@ -1,34 +1,54 @@
 #!/usr/bin/python3
 import sys,os,cgi,json
 from urllib.parse import quote,unquote
-d=cgi.parse(fp=sys.stdin)
 
-print('Status: 200 OK',end='\r\n')
-print('Content-type: application/json',end='\r\n')
-print(end='\r\n')
+def getfilelist(d):
+    fmt='ogg' if 'fmt' not in d else d['fmt']
 
-fmt='ogg' if 'fmt' not in d else d['fmt']
+    ro={'status':200,'message':'OK'}
+    if 'folder' not in d or d['folder']=='':
+        plp=os.environ['DOCUMENT_ROOT']+'/libs/music/player.d/playlists/playlists'
+        alblist=list()
+        with open(plp,mode='r',encoding='utf-8') as f:
+            for line in f:
+                line=line.strip()
+                if len(line)>0:alblist.append(quote(line))
+        rro={'type':'fileList','data':{'subFolderList':alblist}}
+        ro['result']=rro
+        print(json.dumps(ro))
+    else:
+        alp=os.environ['DOCUMENT_ROOT']+'/libs/music/player.d/playlists/'+unquote(d['folder'][0]).strip('/')+'.playlist'
+        alblist=list()
+        with open(alp,mode='r',encoding='utf-8') as f:
+            for line in f:
+                line=line.strip()
+                if len(line)>0:
+    #hard code this for now, until pcm api stabilizes
+                    alblist.append({'fileName':quote(line+'.ogg'),'fileSize':0,'modifiedTime':0})
+        rro={'type':'fileList','data':{'musicList':alblist[1:],'subFolderList':list()}}
+        ro['result']=rro
+        print(json.dumps(ro))
+
+def getserverinfo(d):
+    ro={'status': 200, 'message': 'OK'}
+    ro['result']={
+            'serverName': 'Pineapple Cloud Music',
+            'serverShortName': 'PCM',
+            'baseFolderNameHint': '',
+            'preferredFormatsHint': 'ogg',
+            'apiVersion': 1,
+            'mediaRootUrl': '//filestorage.chrisoft.org/music/ogg/'
+    }
+    print(json.dumps(ro))
+
+if __name__ == '__main__':
+    d=cgi.parse(fp=sys.stdin)
+
+    print('Status: 200 OK',end='\r\n')
+    print('Content-type: application/json',end='\r\n')
+    print(end='\r\n')
+
+    actionmap={'getserverinfo':getserverinfo, 'getfilelist':getfilelist}
+    if d['do'][0] in actionmap:
+        actionmap[d['do'][0]](d)
 
-ro={'status':200,'message':'OK'}
-if 'folder' not in d or d['folder']=='':
-	plp=os.environ['DOCUMENT_ROOT']+'/libs/music/player.d/playlists/playlists'
-	alblist=list()
-	with open(plp,mode='r',encoding='utf-8') as f:
-		for line in f:
-			line=line.strip()
-			if len(line)>0:alblist.append(quote(line))
-	rro={'type':'fileList','data':{'subFolderList':alblist}}
-	ro['result']=rro
-	print(json.dumps(ro))
-else:
-	alp=os.environ['DOCUMENT_ROOT']+'/libs/music/player.d/playlists/'+unquote(d['folder'][0]).strip('/')+'.playlist'
-	alblist=list()
-	with open(alp,mode='r',encoding='utf-8') as f:
-		for line in f:
-			line=line.strip()
-			if len(line)>0:
-#hard code this for now, until pcm api stabilizes
-				alblist.append({'fileName':quote(line+'.ogg'),'fileSize':0,'modifiedTime':0})
-	rro={'type':'fileList','data':{'musicList':alblist[1:],'subFolderList':list()}}
-	ro['result']=rro
-	print(json.dumps(ro))
diff --git a/libs/music/player.d/pcm.js b/libs/music/player.d/pcm.js
index 0efe849..6e2022c 100644
--- a/libs/music/player.d/pcm.js
+++ b/libs/music/player.d/pcm.js
@@ -1,11 +1,8 @@
-; // Private Cloud Music - player.js
-; // Licence: WTFPL
-; // BLumia - 2016/11/11
+; // SPDX-FileCopyrightText: 2021 Gary Wang <toblumia@outlook.com>
+; // SPDX-License-Identifier: MIT
 ; // szO Chris && 2jjy && jxpxxzj Orz
 ; //     ↑ Moe    ↑ Moe   ↑ Moe
-; // Modified to use on chrisoft.org by Chris Xiong
-; // szO BLumia Orz
-; //     ↑ Moe
+
 // formatTime,getCookie by Chrissssss
 function formatTime(t) {
     if(isNaN(t))return '--:--';
@@ -24,9 +21,9 @@ function setCookie(cookieName, cookieValue, maxAge = 0) {
     if (maxAge > 0) cookieStr += ";max-age=" + maxAge;
     document.cookie = cookieStr;
 }
-
-const PCMAPI_URL='/libs/music/player.d/cgi-bin/pcm.cgi';
-const AUDIO_URL='//filestorage.chrisoft.org/music/ogg/';
+function displayName(item) {
+    return item.displayName ? item.displayName : decodeURIComponent(item.fileName);
+}
 
 (function() {
     var Helper = function() {
@@ -49,8 +46,16 @@ const AUDIO_URL='//filestorage.chrisoft.org/music/ogg/';
             if(this.el) this.el.style.cssText += ';' + property + ":" + value;
             return this;
         },
-        attr: function(property, value) {
-            if(this.el) this.el.setAttribute(property, value);
+        attr: function(attr, value) {
+            if(this.el) this.el.setAttribute(attr, value);
+            return this;
+        },
+        removeData: function(attr) {
+            if(this.el) this.el.removeAttribute("data-" + attr);
+            return this;
+        },
+        data: function(attr, value) {
+            if(this.el) this.el.setAttribute("data-" + attr, JSON.stringify(value));
             return this;
         },
         append: function(node) {
@@ -76,9 +81,17 @@ const AUDIO_URL='//filestorage.chrisoft.org/music/ogg/';
         var f = new Helper();
         return f.entry(selector);
     }
+    function TrickOrTreat(promiseRsp) {
+        if (!promiseRsp.ok) {
+            throw Error(promiseRsp.statusText); // to cancel the Promise chain...
+        }
+        return promiseRsp.json();
+    }
     var Player = {
+        mediaRootUrl: '',
         path: null, // sample: 'Test/'
         data: null,
+        preferredFormats: undefined, // sample: 'mp3,ogg'
         audio: document.getElementsByTagName('audio')[0],
         currentIndex: -1,
         loop: 0,
@@ -86,6 +99,14 @@ const AUDIO_URL='//filestorage.chrisoft.org/music/ogg/';
         playlist: H("playlist").el,
         folderlist: H("folderlist").el,
         nowPlaying: H("nowPlaying").el,
+        apiUrl: "/libs/music/player.d/cgi-bin/pcm.cgi",
+        _currentSongInfoJson: undefined,
+        _chapterNeedUpdate: true,
+
+        setInfoJson: (jsonData) => {
+            this._currentSongInfoJson = jsonData;
+            this._chapterNeedUpdate = true;
+        },
         
         updateMetadata: function() {
             if ('mediaSession' in navigator) {
@@ -96,25 +117,90 @@ const AUDIO_URL='//filestorage.chrisoft.org/music/ogg/';
             }
         },
 
+        applyChapterData: () => {
+            if (!this._chapterNeedUpdate) return;
+            if (Player.audio.duration) {
+                if (this._currentSongInfoJson) {
+                    let duration = Player.audio.duration;
+                    let progressChapterData = [];
+                    this._currentSongInfoJson.chapters.forEach((chapter) => {
+                        let chapterObj = {};
+                        chapterObj.start = chapter.start_time / duration * 100;
+                        chapterObj.title = chapter.title;
+                        progressChapterData.push(chapterObj);
+                    });
+                    H("progress-bar").data("chapters", progressChapterData);
+                } else {
+                    H("progress-bar").removeData("chapters");
+                }
+                this._chapterNeedUpdate = false;
+            }
+        },
+
+        fetchAdditionalInfo: (infoJsonfileUrl) => {
+            fetch(infoJsonfileUrl).then(TrickOrTreat).then((data) => {
+                Player.setInfoJson(data);
+            });
+        },
+
         playAtIndex: function(i) {
+            let fullPath = this.path + this.data[i].fileName;
+            let srcUrl = this.data[i].url ? this.data[i].url : (this.mediaRootUrl + fullPath);
             // FIXME: trigger this when audio doesn't finished load will cause play promise error.
             this.audio.pause();
             this.currentIndex = i;
-            this.audio.src = AUDIO_URL + this.data[i].fileName;
+            this.audio.src = srcUrl;
             this.audio.load();
             this.audio.play();
-            window.history.replaceState("","Useless Title","#/"+this.path+this.data[i].fileName+"/"); // title seems be fucked.
-            H(this.nowPlaying).innerHTML(decodeURIComponent(this.data[i].fileName));
+            window.history.replaceState("","Useless Title","#/" + fullPath + "/"); // title seems be fucked.
+            H(this.nowPlaying).innerHTML(displayName(this.data[i]));
+
+            if (this.data[i].additionalInfo) {
+                let infoJsonFile = (fullPath.substring(0, fullPath.lastIndexOf('.')) || fullPath) + ".info.json";
+                this.fetchAdditionalInfo(infoJsonFile);
+            } else {
+                this.setInfoJson(undefined);
+            }
+        },
+
+        fetchServerInfo: function(callback) {
+            var that = this;
+            fetch(this.apiUrl, {
+                method: 'POST',
+                body: new URLSearchParams({
+                    'do': 'getserverinfo'
+                })
+            }).then(TrickOrTreat).then((data) => {
+                if (data.result.mediaRootUrl && data.result.mediaRootUrl.length > 1) {
+                    that.mediaRootUrl = data.result.mediaRootUrl;
+                    if (!that.mediaRootUrl.endsWith('/')) {
+                        that.mediaRootUrl = that.mediaRootUrl + '/';
+                    }
+                }
+                if (data.result.serverName) {
+                    let el = H("server-name");
+                    if (el) {
+                        el.text(data.result.serverName);
+                    }
+                    document.title = data.result.serverName;
+                }
+                
+                typeof callback === 'function' && callback();
+            })
         },
 
         freshFolderlist: function(callback) {
-            var xhr = new XMLHttpRequest();
-            xhr.open("POST", PCMAPI_URL, true);
-            xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
             var that = this;
-            xhr.onreadystatechange = function () {
-                if (xhr.readyState != 4 || xhr.status != 200) return;
-                var data = JSON.parse(xhr.responseText);
+            requestBody = {
+                'do': 'getfilelist',
+            };
+            if (that.preferredFormats) {
+                requestBody['preferredFormats'] = that.preferredFormats;
+            }
+            fetch(this.apiUrl, {
+                method: 'POST',
+                body: new URLSearchParams(requestBody)
+            }).then(TrickOrTreat).then((data) => {
                 if (data.status != 200) { 
                     console.error("Fetch error. Reason: " + data.message + " Url: ./api.php");
                     return;
@@ -129,11 +215,7 @@ const AUDIO_URL='//filestorage.chrisoft.org/music/ogg/';
                         ).el
                     );
                 });
-            };
-            xhr.onerror = function() {
-                console.error("Ajax load folders failed. Status: " + xhr.status + " Url: ./api.php");
-            };
-            xhr.onloadend = function() {
+                
                 var nodeList = document.querySelectorAll('#folderlist a');
                 for(var i = 0; i < nodeList.length; i++) {
                     var el = nodeList[i];
@@ -142,41 +224,34 @@ const AUDIO_URL='//filestorage.chrisoft.org/music/ogg/';
                         that.fetchData();
                     };
                 }
+                
                 typeof callback === 'function' && callback();
-            }
-            xhr.send("do=getfilelist");
+            });
         },
 
         fetchData: function() {
             var that = this;
-            var xhr = new XMLHttpRequest();
-            xhr.open("POST", PCMAPI_URL, true);
-            xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
-            xhr.onreadystatechange = function () {
-                if (xhr.readyState != 4 || xhr.status != 200) return;
-                var data = JSON.parse(xhr.responseText);
-                if (data.status != 200) { 
-                    console.error("Fetch error. Reason: " + data.message + " Url: ./api.php");
-                    return;
-                }
+            
+            fetch(this.apiUrl, {
+                method: 'POST',
+                body: new URLSearchParams({
+                    'do': 'getfilelist',
+                    'folder': that.path
+                })
+            }).then(TrickOrTreat).then((data) => {
                 that.data = data.result.data.musicList;
                 that.freshPlaylist();
                 that.freshSubFolderList(data.result.data.subFolderList);
-            };
-            xhr.onerror = function() {
-                console.error("Ajax load playlist failed. Status: " + xhr.status + " Url: ./api.php");
-                that.data = [];
-            };
-            xhr.send("do=getfilelist&folder="+that.path);
+            });
         },
- 
+
         freshPlaylist : function() {
             var that = this;
             var data = this.data;
             var songTitle = '';
             this.playlist.innerHTML = '';
             data.forEach(function(item, i) {
-                songTitle = decodeURIComponent(item.fileName);
+                songTitle = displayName(item);
                 H(that.playlist).append(
                     H("<a>").attr('index', i).append(
                         H("<li>").text(songTitle).el
@@ -218,13 +293,13 @@ const AUDIO_URL='//filestorage.chrisoft.org/music/ogg/';
         urlMatch : function() {
             var isUrlMatched = false;
             // Match folder name and song title.
-            var re = new RegExp("[#][/](.*[/])(.*)[/]$");
+            var re = new RegExp("[#][/](.*[/])(.*.[a-zA-z0-9]{1,3})[/]");
             var urlMatch = re.exec(location.href);
             if (urlMatch != null) {
                 isUrlMatched = true;
                 this.path = urlMatch[1];
-                this.audio.src = AUDIO_URL + urlMatch[2] + '.ogg';
-                this.audio.play();
+                this.audio.src = (this.path + urlMatch[2]);
+                this.audio.play().catch((reason) => { console.log(reason); });
                 H(this.nowPlaying).innerHTML(decodeURIComponent(urlMatch[2]));
             }
             // Only match folder name.
@@ -261,30 +336,33 @@ const AUDIO_URL='//filestorage.chrisoft.org/music/ogg/';
                 H("btn-order").innerHTML("Order: ×");
             }
         },
- 
+
         init : function() {
             var that = this;
-            this.freshFolderlist(function() {
-                that.urlMatch();
-                that.fetchData();
+            this.fetchServerInfo(function() {
+                that.freshFolderlist(function() {
+                    that.urlMatch();
+                    that.fetchData();
+                });
             });
             this.loop = getCookie("pcm-loop") == "1" ? 1 : 0;
             this.order = getCookie("pcm-order") == "1" ? 1 : 0;
             this.applyLoop();
             this.applyOrder();
         },
- 
+
         ready : function() {
             var that = this;
             
-            this.audio.ontimeupdate = function() {
+            this.audio.ontimeupdate = () => {
+                this.applyChapterData();
                 H("curTime").innerHTML(formatTime(Player.audio.currentTime));
                 H("totalTime").innerHTML(formatTime(Player.audio.duration));
-                H("timebar").css("width", Player.audio.currentTime / Player.audio.duration*100+"%");
+                H("progress-bar").attr("value", Player.audio.currentTime / Player.audio.duration*100);
                 var r = 0;
-                for(var i=0; i<Player.audio.buffered.length; ++i)
+                for (var i=0; i<Player.audio.buffered.length; ++i)
                     r = r<Player.audio.buffered.end(i) ? Player.audio.buffered.end(i) : r;
-                H("bufferbar").css("width", r / Player.audio.duration*100+"%");
+                H("progress-bar").attr("buffer", r / Player.audio.duration*100);
             };
             
             this.audio.onpause = function() {
@@ -296,7 +374,7 @@ const AUDIO_URL='//filestorage.chrisoft.org/music/ogg/';
                 that.updateMetadata();
             }
 
-            H("progressbar").click(function(e) {
+            H("progress-bar").click(function(e) {
                 var sr=this.getBoundingClientRect();
                 var p=(e.clientX-sr.left)/sr.width;
                 that.audio.currentTime=that.audio.duration*p;
@@ -306,7 +384,7 @@ const AUDIO_URL='//filestorage.chrisoft.org/music/ogg/';
             for(var i = 0; i < nodeList.length; i++) {
                 var el = nodeList[i];
                 el.onclick = function() {
-                    if(that.data[that.currentIndex]) H(that.nowPlaying).innerHTML(decodeURIComponent(that.data[that.currentIndex].fileName));
+                    if(that.data[that.currentIndex]) H(that.nowPlaying).innerHTML(displayName(that.data[that.currentIndex]));
                 };
             }
 
@@ -346,7 +424,7 @@ const AUDIO_URL='//filestorage.chrisoft.org/music/ogg/';
                 that.applyLoop();
                 setCookie("pcm-loop", that.loop, 157680000);
             });
- 
+
             H("btn-order").click(function() {
                 that.order = 1 - that.order;
                 that.applyOrder();
@@ -359,7 +437,7 @@ const AUDIO_URL='//filestorage.chrisoft.org/music/ogg/';
             }
         }
     };
- 
+
     Player.init();
     Player.ready();
 }());
diff --git a/libs/music/player.d/progress-bar.js b/libs/music/player.d/progress-bar.js
new file mode 100644
index 0000000..c5850c2
--- /dev/null
+++ b/libs/music/player.d/progress-bar.js
@@ -0,0 +1,97 @@
+; // SPDX-FileCopyrightText: 2021 Gary Wang <toblumia@outlook.com>
+; // SPDX-License-Identifier: MIT
+class ProgressBar extends HTMLElement {
+
+    static get observedAttributes() {
+        return ['value', 'buffer', 'data-chapters'];
+    }
+    
+    constructor() {
+        super(); // always call super() first in the constructor.
+        const shadow = this.attachShadow({mode: 'open'});
+        
+        const container = document.createElement('div');
+        container.setAttribute('class', 'container');
+        
+        const bufferBar = document.createElement('div');
+        bufferBar.setAttribute('id', 'bufferbar');
+        
+        const timeBar = document.createElement('div');
+        timeBar.setAttribute('id', 'timebar');
+        
+        const chapterContainer = document.createElement('div');
+        chapterContainer.setAttribute('id', 'chapter-container');
+        
+        const style = document.createElement('style');
+        style.textContent = `
+            .container {
+                height: 1.5em;
+                position: relative;
+                background-color: #f1f1f1;
+            }
+            .container > div {
+                height: 100%;
+                position: absolute;
+            }
+            #timebar {
+                background-color: #2196F3;
+            }
+            #bufferbar {
+                background-color: #AAA;
+            }
+            .container, #chapter-container {
+                width: 100%;
+            }
+            .chapter {
+                height: 100%;
+                width: stretch; width: -moz-available; width: -webkit-fill-available;
+                border-left: .15em solid #0045F340;
+                position: absolute;
+            }
+        `;
+        
+        shadow.appendChild(container);
+        shadow.appendChild(style);
+        container.appendChild(bufferBar);
+        container.appendChild(timeBar);
+        container.appendChild(chapterContainer);
+    }
+    
+    connectedCallback() {
+        spawnChapters(this);
+        updateStyle(this);
+    };
+    
+    attributeChangedCallback(name, oldValue, newValue) {
+        if (name == "data-chapters") {
+            spawnChapters(this);
+        } 
+        updateStyle(this);
+    }
+}
+
+function spawnChapters(elem) {
+    const shadow = elem.shadowRoot;
+    let chapterContainer = shadow.querySelector('#chapter-container');
+    let chapters = elem.dataset.chapters ? JSON.parse(elem.dataset.chapters) : [];
+
+    if (!Array.isArray(chapters)) return;
+    chapterContainer.textContent = '';
+    chapters.forEach((chapter) => {
+        let chapterElem = document.createElement('div');
+        chapterElem.setAttribute('class', 'chapter');
+        chapterElem.setAttribute('title', `${chapter.title}`);
+        chapterElem.setAttribute('style', `left: ${chapter.start}%`);
+        chapterContainer.appendChild(chapterElem);
+    });
+}
+
+function updateStyle(elem) {
+    const shadow = elem.shadowRoot;
+    let timebar = shadow.querySelector('#timebar');
+    timebar.setAttribute('style', `width: ${elem.getAttribute('value')}%`);
+    let bufferbar = shadow.querySelector('#bufferbar');
+    bufferbar.setAttribute('style', `width: ${elem.getAttribute('buffer')}%`);
+}
+
+customElements.define('pcm-progress', ProgressBar);
-- 
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