From 33d67ffc4f9d9d0d7ad672997ffc5261770d988b Mon Sep 17 00:00:00 2001
From: "(quasar) nebula" <towerofnix@gmail.com>
Date: Wed, 28 Oct 2020 18:01:59 -0300
Subject: so far so good

---
 static/lazy-loading.js | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 static/lazy-loading.js

(limited to 'static/lazy-loading.js')

diff --git a/static/lazy-loading.js b/static/lazy-loading.js
new file mode 100644
index 00000000..22f95eb0
--- /dev/null
+++ b/static/lazy-loading.js
@@ -0,0 +1,25 @@
+// Lazy loading! Roll your own. Woot.
+
+function loadImage(image) {
+    image.src = image.dataset.original;
+}
+
+function lazyLoad(elements) {
+    for (const item of elements) {
+        if (item.intersectionRatio > 0) {
+            observer.unobserve(item.target);
+            loadImage(item.target);
+        }
+    }
+}
+
+const observer = new IntersectionObserver(lazyLoad, {
+    rootMargin: '200px',
+    threshold: 1.0
+});
+
+for (const image of document.querySelectorAll('img.lazy')) {
+    observer.observe(image);
+}
+
+window.lazyLoadingExecuted = true;
-- 
cgit 1.3.0-6-gf8a5