1e1b5d84d4
- Introduce a new user script `video-track-probe.js` that probes WebRTC video input/output tracks and displays active RTP statistics. - Implement functionality to manage video track candidates, including live video detection and performance metrics. - Enhance logging features to provide real-time feedback on video track status and statistics. - Integrate mechanisms for tracking video elements and their associated media streams, improving overall media management in the WebRTC environment.
627 lines
27 KiB
JavaScript
627 lines
27 KiB
JavaScript
// ==UserScript==
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// @name 12345 Video Track Probe
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// @namespace http://tampermonkey.net/
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// @version 1.0
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// @description Probe page/WebRTC video input/output tracks and show active RTP stats.
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// @author You
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// @match *://yhy-yw.22sj.cn:*/*
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// @grant none
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// @run-at document-start
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// ==/UserScript==
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(function () {
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'use strict';
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const originalGetUserMedia = navigator.mediaDevices?.getUserMedia?.bind(navigator.mediaDevices);
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const originalAddEventListener = RTCPeerConnection.prototype.addEventListener;
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const originalAddTrack = RTCPeerConnection.prototype.addTrack;
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const originalAddTransceiver = RTCPeerConnection.prototype.addTransceiver;
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const originalSetRemoteDescription = RTCPeerConnection.prototype.setRemoteDescription;
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const mediaSrcObjectDescriptor = Object.getOwnPropertyDescriptor(HTMLMediaElement.prototype, 'srcObject');
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const candidates = new Map();
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const senderCandidates = new Map();
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const receivers = new Set();
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const senders = new Set();
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const localCaptureTrackIds = new Set();
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const inboundStatMemory = new Map();
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const outboundStatMemory = new Map();
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let selectedTrackId = null;
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let selectedSenderId = null;
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let lastPanelRenderAt = 0;
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function nowText() {
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return new Date().toLocaleTimeString([], { hour12: false });
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}
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function isLiveVideoTrack(track) {
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return track?.kind === 'video' && track.readyState === 'live';
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}
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function shortId(id) {
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if (!id) return 'none';
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if (id.length <= 18) return id;
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return `${id.slice(0, 8)}...${id.slice(-6)}`;
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}
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function trackSettings(track) {
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try {
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return track?.getSettings?.() || {};
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} catch {
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return {};
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}
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}
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function log(message) {
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console.log(`[Video Track Probe] ${message}`);
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const box = document.getElementById('video-track-probe-log');
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if (!box) return;
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const row = document.createElement('div');
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row.textContent = `[${nowText()}] ${message}`;
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box.appendChild(row);
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while (box.children.length > 80) box.removeChild(box.firstChild);
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box.scrollTop = box.scrollHeight;
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}
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function ensureCandidate(track, source) {
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if (!isLiveVideoTrack(track)) return null;
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let candidate = candidates.get(track.id);
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if (!candidate) {
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candidate = {
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track,
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receiver: null,
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sources: new Set(),
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elements: new Set(),
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isLocalCapture: localCaptureTrackIds.has(track.id),
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firstSeenAt: Date.now(),
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lastSeenAt: Date.now(),
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lastPacketAt: 0,
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bytesReceived: 0,
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packetsReceived: 0,
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bytesDelta: 0,
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packetsDelta: 0,
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framesReceived: 0,
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framesDecoded: 0,
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framesDropped: 0,
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framesDelta: 0,
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frameWidth: 0,
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frameHeight: 0,
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framesPerSecond: 0,
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score: 0,
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};
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candidates.set(track.id, candidate);
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log(`found video track ${track.id} (${source})`);
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}
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candidate.track = track;
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candidate.sources.add(source);
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candidate.lastSeenAt = Date.now();
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candidate.isLocalCapture = localCaptureTrackIds.has(track.id);
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return candidate;
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}
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function ensureSenderCandidate(sender, track, source) {
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if (!sender) return null;
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const senderTrack = track || sender.track;
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if (senderTrack && senderTrack.kind !== 'video') return null;
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const id = sender.__videoTrackProbeId || `sender-${senderCandidates.size + 1}`;
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sender.__videoTrackProbeId = id;
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let candidate = senderCandidates.get(id);
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if (!candidate) {
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candidate = {
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id,
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sender,
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track: senderTrack || null,
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sources: new Set(),
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isLocalCapture: Boolean(senderTrack && localCaptureTrackIds.has(senderTrack.id)),
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firstSeenAt: Date.now(),
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lastSeenAt: Date.now(),
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bytesSent: 0,
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packetsSent: 0,
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bytesDelta: 0,
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packetsDelta: 0,
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framesEncoded: 0,
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framesSent: 0,
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framesDelta: 0,
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frameWidth: 0,
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frameHeight: 0,
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score: 0,
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};
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senderCandidates.set(id, candidate);
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log(`found video sender ${id} (${source}) track=${senderTrack?.id || 'null'}`);
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}
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candidate.sender = sender;
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candidate.track = senderTrack || sender.track || candidate.track;
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candidate.sources.add(source);
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candidate.lastSeenAt = Date.now();
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candidate.isLocalCapture = Boolean(candidate.track && localCaptureTrackIds.has(candidate.track.id));
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senders.add(sender);
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wrapSender(sender);
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return candidate;
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}
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function wrapSender(sender) {
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if (!sender || sender.__videoTrackProbeWrapped) return;
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const originalReplaceTrack = sender.replaceTrack?.bind(sender);
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if (!originalReplaceTrack) return;
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sender.replaceTrack = async function (track) {
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const result = await originalReplaceTrack(track);
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if (!track || track.kind === 'video') {
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const candidate = ensureSenderCandidate(sender, track, 'replaceTrack');
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if (candidate) {
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candidate.track = track;
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log(`sender ${candidate.id} replaceTrack -> ${track?.id || 'null'}`);
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}
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}
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return result;
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};
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sender.__videoTrackProbeWrapped = true;
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}
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function rememberReceiver(receiver, source) {
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if (!receiver?.track || !isLiveVideoTrack(receiver.track)) return;
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receivers.add(receiver);
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const candidate = ensureCandidate(receiver.track, source);
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if (candidate) candidate.receiver = receiver;
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}
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function rememberStream(stream, source, element) {
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if (!stream || !(stream instanceof MediaStream)) return;
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for (const track of stream.getVideoTracks()) {
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const candidate = ensureCandidate(track, source);
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if (candidate && element) candidate.elements.add(element);
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}
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}
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function scanMediaElements() {
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document.querySelectorAll('video').forEach((element, index) => {
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rememberStream(element.srcObject, `element-${index}:video`, element);
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});
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}
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function applyInboundVideoStat(stat, candidate) {
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const prev = inboundStatMemory.get(stat.id);
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const bytes = stat.bytesReceived || 0;
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const packets = stat.packetsReceived || 0;
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const framesReceived = stat.framesReceived || 0;
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const framesDecoded = stat.framesDecoded || 0;
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const framesDropped = stat.framesDropped || 0;
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candidate.bytesDelta = prev ? Math.max(0, bytes - prev.bytes) : 0;
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candidate.packetsDelta = prev ? Math.max(0, packets - prev.packets) : 0;
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candidate.framesDelta = prev ? Math.max(0, framesDecoded - prev.framesDecoded) : 0;
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candidate.bytesReceived = bytes;
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candidate.packetsReceived = packets;
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candidate.framesReceived = framesReceived;
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candidate.framesDecoded = framesDecoded;
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candidate.framesDropped = framesDropped;
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candidate.frameWidth = stat.frameWidth || candidate.frameWidth;
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candidate.frameHeight = stat.frameHeight || candidate.frameHeight;
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candidate.framesPerSecond = stat.framesPerSecond || candidate.framesPerSecond;
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if (candidate.bytesDelta > 0 || candidate.packetsDelta > 0 || candidate.framesDelta > 0) {
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candidate.lastPacketAt = Date.now();
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}
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inboundStatMemory.set(stat.id, { bytes, packets, framesDecoded });
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}
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function applyOutboundVideoStat(stat, candidate) {
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const prev = outboundStatMemory.get(stat.id);
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const bytes = stat.bytesSent || 0;
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const packets = stat.packetsSent || 0;
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const framesEncoded = stat.framesEncoded || 0;
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const framesSent = stat.framesSent || 0;
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candidate.bytesDelta = prev ? Math.max(0, bytes - prev.bytes) : 0;
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candidate.packetsDelta = prev ? Math.max(0, packets - prev.packets) : 0;
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candidate.framesDelta = prev ? Math.max(0, framesSent - prev.framesSent) : 0;
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candidate.bytesSent = bytes;
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candidate.packetsSent = packets;
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candidate.framesEncoded = framesEncoded;
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candidate.framesSent = framesSent;
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candidate.frameWidth = stat.frameWidth || candidate.frameWidth;
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candidate.frameHeight = stat.frameHeight || candidate.frameHeight;
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outboundStatMemory.set(stat.id, { bytes, packets, framesSent });
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}
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async function refreshStats() {
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for (const receiver of Array.from(receivers)) {
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if (!receiver.track || receiver.track.readyState !== 'live') {
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receivers.delete(receiver);
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continue;
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}
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const candidate = ensureCandidate(receiver.track, 'receiver-stats');
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if (!candidate || !receiver.getStats) continue;
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candidate.receiver = receiver;
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try {
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const report = await receiver.getStats();
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report.forEach((stat) => {
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const kind = stat.kind || stat.mediaType;
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if (stat.type !== 'inbound-rtp' || kind !== 'video') return;
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applyInboundVideoStat(stat, candidate);
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});
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} catch (error) {
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candidate.sources.add(`stats-error:${error.message || error}`);
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}
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}
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chooseActiveTrack();
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await refreshSenderStats();
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chooseActiveSender();
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}
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async function refreshSenderStats() {
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for (const sender of Array.from(senders)) {
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if (!sender) {
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senders.delete(sender);
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continue;
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}
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const candidate = ensureSenderCandidate(sender, sender.track, 'sender-stats');
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if (!candidate || !sender.getStats) continue;
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try {
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const report = await sender.getStats();
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report.forEach((stat) => {
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const kind = stat.kind || stat.mediaType;
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if (stat.type !== 'outbound-rtp' || kind !== 'video') return;
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applyOutboundVideoStat(stat, candidate);
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});
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} catch (error) {
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candidate.sources.add(`sender-stats-error:${error.message || error}`);
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}
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}
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}
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function scoreCandidate(candidate) {
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if (!candidate || !isLiveVideoTrack(candidate.track)) return -1;
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let score = 0;
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if (!candidate.track.muted) score += 1000;
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if (candidate.receiver) score += 300;
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if (candidate.bytesDelta > 0) score += 4000 + Math.min(1500, candidate.bytesDelta);
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if (candidate.packetsDelta > 0) score += 2000 + Math.min(800, candidate.packetsDelta * 8);
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if (candidate.framesDelta > 0) score += 3000 + Math.min(1200, candidate.framesDelta * 40);
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if (Date.now() - candidate.lastPacketAt < 3000) score += 1200;
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if (candidate.frameWidth > 0 && candidate.frameHeight > 0) score += 400;
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if (candidate.elements.size > 0) score += 200;
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if (candidate.isLocalCapture) score -= 2500;
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return score;
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}
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function chooseActiveTrack() {
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let best = null;
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for (const candidate of candidates.values()) {
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candidate.score = scoreCandidate(candidate);
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if (!best || candidate.score > best.score) best = candidate;
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}
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if (!best || best.score < 0) return;
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if (best.track.id !== selectedTrackId) {
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selectedTrackId = best.track.id;
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log(`active video looks like ${best.track.id}, score=${Math.round(best.score)}, ${best.frameWidth}x${best.frameHeight}`);
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}
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}
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function scoreSenderCandidate(candidate) {
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if (!candidate) return -1;
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let score = 0;
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if (candidate.track?.readyState === 'live') score += 1000;
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if (candidate.track && !candidate.track.muted) score += 400;
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if (candidate.bytesSent > 0) score += 300;
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if (candidate.bytesDelta > 0) score += 4500 + Math.min(1800, candidate.bytesDelta);
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if (candidate.packetsDelta > 0) score += 1800 + Math.min(900, candidate.packetsDelta * 10);
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if (candidate.framesDelta > 0) score += 2200 + Math.min(1000, candidate.framesDelta * 30);
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if (candidate.frameWidth > 0 && candidate.frameHeight > 0) score += 300;
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if (candidate.isLocalCapture) score += 2500;
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if (candidate.sources.has('pc-addTrack')) score += 1500;
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return score;
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}
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function chooseActiveSender() {
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let best = null;
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for (const candidate of senderCandidates.values()) {
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candidate.score = scoreSenderCandidate(candidate);
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if (!best || candidate.score > best.score) best = candidate;
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}
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if (!best || best.score < 0) return;
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if (best.id !== selectedSenderId) {
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selectedSenderId = best.id;
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log(`active output sender looks like ${best.id}, track=${best.track?.id || 'null'}, score=${Math.round(best.score)}`);
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}
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}
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function dumpInputs() {
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return Array.from(candidates.values())
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.sort((a, b) => b.score - a.score)
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.map((candidate) => {
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const settings = trackSettings(candidate.track);
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return {
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selected: candidate.track.id === selectedTrackId,
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id: candidate.track.id,
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label: candidate.track.label,
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enabled: candidate.track.enabled,
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muted: candidate.track.muted,
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readyState: candidate.track.readyState,
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isLocalCapture: candidate.isLocalCapture,
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hasReceiver: Boolean(candidate.receiver),
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bytesReceived: candidate.bytesReceived,
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packetsReceived: candidate.packetsReceived,
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bytesDelta: candidate.bytesDelta,
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packetsDelta: candidate.packetsDelta,
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framesReceived: candidate.framesReceived,
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framesDecoded: candidate.framesDecoded,
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framesDropped: candidate.framesDropped,
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framesDelta: candidate.framesDelta,
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frameWidth: candidate.frameWidth || settings.width || 0,
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frameHeight: candidate.frameHeight || settings.height || 0,
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framesPerSecond: candidate.framesPerSecond || settings.frameRate || 0,
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score: Math.round(candidate.score),
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sources: Array.from(candidate.sources),
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elements: Array.from(candidate.elements).map((element) => ({
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tag: element.tagName,
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paused: element.paused,
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muted: element.muted,
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videoWidth: element.videoWidth,
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videoHeight: element.videoHeight,
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})),
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};
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});
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}
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function dumpOutputs() {
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return Array.from(senderCandidates.values())
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.sort((a, b) => b.score - a.score)
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.map((candidate) => {
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const settings = trackSettings(candidate.track);
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return {
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selected: candidate.id === selectedSenderId,
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id: candidate.id,
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trackId: candidate.track?.id || null,
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trackLabel: candidate.track?.label || null,
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trackEnabled: candidate.track?.enabled ?? null,
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trackMuted: candidate.track?.muted ?? null,
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trackReadyState: candidate.track?.readyState || null,
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isLocalCapture: candidate.isLocalCapture,
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bytesSent: candidate.bytesSent,
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packetsSent: candidate.packetsSent,
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bytesDelta: candidate.bytesDelta,
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packetsDelta: candidate.packetsDelta,
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framesEncoded: candidate.framesEncoded,
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framesSent: candidate.framesSent,
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framesDelta: candidate.framesDelta,
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frameWidth: candidate.frameWidth || settings.width || 0,
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frameHeight: candidate.frameHeight || settings.height || 0,
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score: Math.round(candidate.score),
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sources: Array.from(candidate.sources),
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};
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});
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}
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function dump() {
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return {
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selectedInputTrackId: selectedTrackId,
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selectedOutputSenderId: selectedSenderId,
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inputs: dumpInputs(),
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outputs: dumpOutputs(),
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};
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}
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function activityPct(row) {
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return Math.min(100, Math.max(
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row.framesDelta * 8,
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row.bytesDelta / 40,
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row.packetsDelta * 2
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));
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}
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function renderPanel() {
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if (!document.body) return;
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let panel = document.getElementById('video-track-probe-panel');
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if (!panel) {
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panel = document.createElement('div');
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panel.id = 'video-track-probe-panel';
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panel.style.cssText = [
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'position:fixed',
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'top:20px',
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'left:20px',
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'width:480px',
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'max-height:70vh',
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'z-index:999998',
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'box-sizing:border-box',
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'padding:12px',
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'border-radius:8px',
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'background:rgba(3,7,18,.96)',
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'color:#e5e7eb',
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'font:12px ui-monospace,Menlo,monospace',
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'box-shadow:0 12px 32px rgba(0,0,0,.35)',
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'overflow:auto',
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].join(';');
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panel.innerHTML = `
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<div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;">
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<strong style="color:#f9a8d4;font:13px system-ui,sans-serif;">Video Track Probe</strong>
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<button id="video-track-probe-copy" style="border:0;border-radius:5px;padding:5px 8px;background:#db2777;color:white;cursor:pointer;">copy dump</button>
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</div>
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<div id="video-track-probe-summary" style="margin-bottom:8px;color:#d1d5db;"></div>
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<div style="color:#f9a8d4;margin:8px 0 4px;">Input receivers</div>
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<div id="video-track-probe-list"></div>
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<div style="color:#c084fc;margin:10px 0 4px;">Output senders</div>
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<div id="video-track-probe-output-list"></div>
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<div id="video-track-probe-log" style="margin-top:8px;height:90px;overflow:auto;border-top:1px solid #374151;padding-top:6px;color:#fbcfe8;"></div>
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`;
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document.body.appendChild(panel);
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document.getElementById('video-track-probe-copy').addEventListener('click', async () => {
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const text = JSON.stringify(window.__videoTrackProbeDump(), null, 2);
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await navigator.clipboard?.writeText(text).catch(() => {});
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console.log('[Video Track Probe dump]', text);
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log('dump copied to clipboard and console');
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});
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}
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const rows = dumpInputs();
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const outputRows = dumpOutputs();
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const selected = rows.find((row) => row.selected);
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const selectedOutput = outputRows.find((row) => row.selected);
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document.getElementById('video-track-probe-summary').textContent =
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`inputs=${rows.length}, selected=${selected ? selected.id : 'none'} | outputs=${outputRows.length}, selected=${selectedOutput ? selectedOutput.id : 'none'}, time=${nowText()}`;
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document.getElementById('video-track-probe-list').innerHTML = rows.map((row) => {
|
|
const pct = activityPct(row);
|
|
const color = row.selected ? '#f9a8d4' : '#9ca3af';
|
|
const res = row.frameWidth && row.frameHeight ? `${row.frameWidth}x${row.frameHeight}` : 'unknown';
|
|
return `
|
|
<div style="border:1px solid ${row.selected ? '#ec4899' : '#374151'};border-radius:6px;padding:8px;margin-bottom:6px;">
|
|
<div style="display:flex;justify-content:space-between;gap:8px;color:${color};">
|
|
<span>${row.selected ? '*' : '-'} ${shortId(row.id)}</span>
|
|
<span>score=${row.score}</span>
|
|
</div>
|
|
<div style="height:6px;background:#374151;border-radius:999px;overflow:hidden;margin:6px 0;">
|
|
<div style="height:100%;width:${pct}%;background:linear-gradient(90deg,#f472b6,#fbbf24);"></div>
|
|
</div>
|
|
<div style="color:#cbd5e1;line-height:1.45;">
|
|
${res} fps=${Number(row.framesPerSecond || 0).toFixed(1)} muted=${row.muted} receiver=${row.hasReceiver} framesDelta=${row.framesDelta} bytesDelta=${row.bytesDelta}
|
|
</div>
|
|
<div style="color:#94a3b8;word-break:break-all;">${row.sources.join(', ')}</div>
|
|
</div>
|
|
`;
|
|
}).join('');
|
|
|
|
document.getElementById('video-track-probe-output-list').innerHTML = outputRows.map((row) => {
|
|
const pct = activityPct(row);
|
|
const color = row.selected ? '#c084fc' : '#9ca3af';
|
|
const res = row.frameWidth && row.frameHeight ? `${row.frameWidth}x${row.frameHeight}` : 'unknown';
|
|
return `
|
|
<div style="border:1px solid ${row.selected ? '#a855f7' : '#374151'};border-radius:6px;padding:8px;margin-bottom:6px;">
|
|
<div style="display:flex;justify-content:space-between;gap:8px;color:${color};">
|
|
<span>${row.selected ? '*' : '-'} ${row.id}</span>
|
|
<span>score=${row.score}</span>
|
|
</div>
|
|
<div style="height:6px;background:#374151;border-radius:999px;overflow:hidden;margin:6px 0;">
|
|
<div style="height:100%;width:${pct}%;background:linear-gradient(90deg,#60a5fa,#c084fc);"></div>
|
|
</div>
|
|
<div style="color:#cbd5e1;line-height:1.45;">
|
|
track=${shortId(row.trackId)} ${res} local=${row.isLocalCapture} framesDelta=${row.framesDelta} bytesDelta=${row.bytesDelta}
|
|
</div>
|
|
<div style="color:#94a3b8;word-break:break-all;">${row.sources.join(', ')}</div>
|
|
</div>
|
|
`;
|
|
}).join('');
|
|
}
|
|
|
|
function wrapTrackListener(listener) {
|
|
if (!listener || listener.__videoTrackProbeWrapped) return listener;
|
|
const wrapped = function (event) {
|
|
rememberReceiver(event?.receiver, 'pc-track');
|
|
if (event?.track?.kind === 'video') ensureCandidate(event.track, 'pc-track');
|
|
for (const stream of event?.streams || []) rememberStream(stream, 'pc-track-stream');
|
|
if (typeof listener === 'function') return listener.apply(this, arguments);
|
|
if (listener?.handleEvent) return listener.handleEvent(event);
|
|
return undefined;
|
|
};
|
|
wrapped.__videoTrackProbeWrapped = true;
|
|
return wrapped;
|
|
}
|
|
|
|
RTCPeerConnection.prototype.addEventListener = function (type, listener, options) {
|
|
if (type === 'track') return originalAddEventListener.call(this, type, wrapTrackListener(listener), options);
|
|
return originalAddEventListener.call(this, type, listener, options);
|
|
};
|
|
|
|
RTCPeerConnection.prototype.addTrack = function (track, ...streams) {
|
|
const sender = originalAddTrack.call(this, track, ...streams);
|
|
if (track?.kind === 'video') ensureSenderCandidate(sender, track, 'pc-addTrack');
|
|
return sender;
|
|
};
|
|
|
|
if (originalAddTransceiver) {
|
|
RTCPeerConnection.prototype.addTransceiver = function (trackOrKind, init) {
|
|
const transceiver = originalAddTransceiver.call(this, trackOrKind, init);
|
|
const kind = trackOrKind instanceof MediaStreamTrack ? trackOrKind.kind : trackOrKind;
|
|
if (kind === 'video') {
|
|
const track = trackOrKind instanceof MediaStreamTrack ? trackOrKind : transceiver.sender?.track;
|
|
ensureSenderCandidate(transceiver.sender, track, 'pc-addTransceiver');
|
|
}
|
|
return transceiver;
|
|
};
|
|
}
|
|
|
|
try {
|
|
const descriptor = Object.getOwnPropertyDescriptor(RTCPeerConnection.prototype, 'ontrack');
|
|
Object.defineProperty(RTCPeerConnection.prototype, 'ontrack', {
|
|
configurable: true,
|
|
enumerable: true,
|
|
get() {
|
|
return descriptor?.get ? descriptor.get.call(this) : this.__videoTrackProbeOnTrack || null;
|
|
},
|
|
set(listener) {
|
|
const wrapped = wrapTrackListener(listener);
|
|
this.__videoTrackProbeOnTrack = wrapped;
|
|
if (descriptor?.set) descriptor.set.call(this, wrapped);
|
|
else this.addEventListener('track', wrapped);
|
|
},
|
|
});
|
|
} catch (error) {
|
|
console.warn('[Video Track Probe] failed to wrap ontrack', error);
|
|
}
|
|
|
|
RTCPeerConnection.prototype.setRemoteDescription = function () {
|
|
const result = originalSetRemoteDescription.apply(this, arguments);
|
|
Promise.resolve(result).then(() => {
|
|
try {
|
|
for (const receiver of this.getReceivers?.() || []) rememberReceiver(receiver, 'receiver-after-srd');
|
|
for (const sender of this.getSenders?.() || []) ensureSenderCandidate(sender, sender.track, 'sender-after-srd');
|
|
} catch (error) {
|
|
console.warn('[Video Track Probe] failed to scan receivers', error);
|
|
}
|
|
});
|
|
return result;
|
|
};
|
|
|
|
if (mediaSrcObjectDescriptor?.set) {
|
|
Object.defineProperty(HTMLMediaElement.prototype, 'srcObject', {
|
|
configurable: true,
|
|
enumerable: mediaSrcObjectDescriptor.enumerable,
|
|
get() {
|
|
return mediaSrcObjectDescriptor.get.call(this);
|
|
},
|
|
set(stream) {
|
|
rememberStream(stream, `${this.tagName.toLowerCase()}-srcObject`, this);
|
|
return mediaSrcObjectDescriptor.set.call(this, stream);
|
|
},
|
|
});
|
|
}
|
|
|
|
if (originalGetUserMedia) {
|
|
navigator.mediaDevices.getUserMedia = async function (constraints) {
|
|
const stream = await originalGetUserMedia(constraints);
|
|
for (const track of stream.getVideoTracks()) {
|
|
localCaptureTrackIds.add(track.id);
|
|
const candidate = ensureCandidate(track, 'getUserMedia');
|
|
if (candidate) candidate.isLocalCapture = true;
|
|
}
|
|
return stream;
|
|
};
|
|
}
|
|
|
|
window.__videoTrackProbeDump = dump;
|
|
|
|
setInterval(scanMediaElements, 500);
|
|
setInterval(refreshStats, 250);
|
|
setInterval(() => {
|
|
if (Date.now() - lastPanelRenderAt < 500) return;
|
|
lastPanelRenderAt = Date.now();
|
|
renderPanel();
|
|
}, 250);
|
|
|
|
if (document.readyState === 'loading') {
|
|
document.addEventListener('DOMContentLoaded', renderPanel, { once: true });
|
|
} else {
|
|
renderPanel();
|
|
}
|
|
})();
|