Function togglePlay

static/mobile/app.js:300–317

()

}

function togglePlay() {
  if (!state.current) return;
  ensureAudioCtx(); // unlock audio within this gesture
  // Engine not loaded for this track yet → load then autoplay.
  if (!engine || engineTrackId !== state.current.id) {
    openTrack(state.current, { autoplay: true });
    return;
  }
  // Decode still in flight → remember the intent and play once ready.
  if (!engineReady) {
    pendingPlay = true;
    return;
  }
  if (engine.isPlaying()) engine.pause();
  else engine.play();
  state.playing = engine.isPlaying();
  render();
}

function seekToFraction(frac) {
  if (!engine) return;