feat: scroll up to load more items

maxun-core/src/browserSide/scraper.js

@@ -145,6 +145,25 @@ async function scrollDownToLoadMore(selector, limit) {
   }
 }
 
+async function scrollUpToLoadMore(selector, limit) {
+  let previousHeight = 0;
+  let itemsLoaded = 0;
+
+  while (itemsLoaded < limit) {
+    window.scrollBy(0, -window.innerHeight);
+    await new Promise(resolve => setTimeout(resolve, 1000));
+
+    const currentHeight = document.body.scrollHeight;
+
+    if (currentHeight === previousHeight) {
+      break; // No more items to load
+    }
+
+    previousHeight = currentHeight;
+    itemsLoaded += document.querySelectorAll(selector).length;
+  }
+}
+
 /**
  * Returns a "scrape" result from the current page.
  * @returns {Array<Object>} *Curated* array of scraped information (with sparse rows removed)