1 files changed, 26 insertions, 3 deletions
diff --git a/src/features/messages.js b/src/features/messages.js
index 648f22d..eb55d88 100644
--- a/src/features/messages.js
+++ b/src/features/messages.js
@@ -12143,8 +12143,8 @@ export function messagesFeature(ctx) {
         playSlide(e.target);
         pagerCounts(e.target);
         // near the end: ask the feed for more, the pager picks them up
-        const slides = scroller.children;
-        if ([...slides].indexOf(e.target) >= slides.length - 3) crawlMedia().catch(() => {});
+        if (pager.fromFeed) pagerFeedAhead();
+        else { const slides = scroller.children; if ([...slides].indexOf(e.target) >= slides.length - 3) crawlMedia().catch(() => {}); }
       }
     }, { root: scroller, threshold: [0.6] });
     growPager();
@@ -12162,7 +12162,30 @@ export function messagesFeature(ctx) {
     pager.onResize = () => { if (pager && pager.cur) pager.scroller.scrollTop = pager.cur.offsetTop; };
     window.addEventListener('resize', pager.onResize);
     // new posts land in the feed while the pager is open; counts move
-    pager.tick = setInterval(() => { if (pager) { growPager(); if (el.classList.contains('show')) pagerCounts(pager.cur); } }, 1500);
+    pager.tick = setInterval(() => { if (pager) { growPager(); pagerFeedAhead(); if (el.classList.contains('show')) pagerCounts(pager.cur); } }, 1500);
+  }
+  // A pager opened from the feed walks the feed's own posts, which page in
+  // ten at a time as the feed is scrolled. Swiping is the scrolling here:
+  // with only a few slides left past the one on screen, the feed pages on
+  // (the posts it holds, then older ones from the relays) until there are
+  // more — several pages if those posts carry none. A page that brings
+  // nothing (the feed busy, or at its end) stops it; the tick tries again.
+  const PAGER_AHEAD = 3;
+  let pagerFeeding = false;
+  async function pagerFeedAhead() {
+    if (pagerFeeding || !pager || !pager.fromFeed) return;
+    pagerFeeding = true;
+    try {
+      const c = feedNow();
+      for (let pages = 0; pages < 8 && pager && pager.fromFeed; pages++) {
+        const slides = [...pager.scroller.children];
+        if (slides.length - 1 - slides.indexOf(pager.cur) > PAGER_AHEAD) break;
+        const shown = c.shown, held = c.notes.length;
+        await loadOlderFeed();
+        growPager();
+        if (c.shown === shown && c.notes.length === held) break;
+      }
+    } catch {} finally { pagerFeeding = false; }
   }
   // Slides for feed items the pager doesn't have yet, appended (never
   // inserted above the one on screen).