perf: load aPlayer after the whole page

1 files changed, 51 insertions, 0 deletions

diff --git a/layouts/partials/scripts.html b/layouts/partials/scripts.html
index 308038ff..12beca10 100644
--- a/layouts/partials/scripts.html
+++ b/layouts/partials/scripts.html
@@ -8,6 +8,57 @@
   <script>Fancybox.bind("[data-fancybox]");</script>
 {{- end }}
 
+{{ if .Params.aplayer }}
+<script>
+document.addEventListener("DOMContentLoaded", function () {
+  const lazyPlayers = document.querySelectorAll(".lazy-aplayer");
+  if (!lazyPlayers.length) return;
+
+  const loadAPlayer = () => {
+    if (window.APlayer) return Promise.resolve();
+    return new Promise((resolve, reject) => {
+      const script = document.createElement('script');
+      script.src = "https://unpkg.com/aplayer@1.10.1/dist/APlayer.min.js";
+      script.onload = resolve;
+      script.onerror = reject;
+      document.body.appendChild(script);
+    });
+  };
+
+  const observer = new IntersectionObserver((entries, obs) => {
+    entries.forEach(entry => {
+      if (entry.isIntersecting) {
+        loadAPlayer().then(() => {
+          const el = entry.target;
+          const id = el.dataset.id ? `-` + el.dataset.id : ``;
+          const container = document.createElement('div');
+          container.id = `aplayer${id}`;
+          el.appendChild(container);
+
+          const ap = new APlayer({
+            container: container,
+            audio: [{
+              name: el.dataset.name,
+              artist: el.dataset.artist,
+              url: el.dataset.url,
+              cover: el.dataset.cover
+            }]
+          });
+
+          ap.on('play', () => umami?.track?.('🎵 Play music with aPlayer'));
+          ap.on('ended', () => umami?.track?.('🎵 Played entiresong with aPlayer'));
+
+          obs.unobserve(el);
+        });
+      }
+    });
+  });
+
+  lazyPlayers.forEach(player => observer.observe(player));
+});
+</script>
+{{ end }}
+
 <script>
   littlefoot.littlefoot({
     dismissOnUnhover: true,