Anchor tracker before feedback section to avoid FB action row overlap

extension/content.js

@@ -418,6 +418,18 @@ function isCompactActionBarCandidate(postElement, candidate) {
   return hasInteractionButtons(candidate);
 }
 
+function hasMainPostContentSignal(node) {
+  if (!node || !node.querySelector) {
+    return false;
+  }
+
+  return Boolean(
+    node.querySelector(
+      '[data-ad-preview*="message" i], [data-ad-comet-preview*="message" i], [data-ad-preview*="story" i], [data-ad-comet-preview*="story" i]'
+    )
+  );
+}
+
 function normalizeActionBarCandidate(postElement, candidate) {
   if (!postElement || !candidate || !candidate.isConnected || !postElement.contains(candidate)) {
     return null;
@@ -444,6 +456,55 @@ function normalizeActionBarCandidate(postElement, candidate) {
   return isReliableActionBarCandidate(postElement, candidate) ? candidate : null;
 }
 
+function findFeedbackSectionAnchor(postElement, actionAnchor = null) {
+  if (!postElement) {
+    return null;
+  }
+
+  const resolvedAction = actionAnchor && postElement.contains(actionAnchor)
+    ? actionAnchor
+    : resolveActionButtonBar(postElement, actionAnchor);
+  if (!resolvedAction || !resolvedAction.isConnected || !postElement.contains(resolvedAction)) {
+    return null;
+  }
+
+  const commentBoundary = findCommentBoundaryAnchorInPost(postElement, resolvedAction);
+  let candidate = resolvedAction;
+  let current = resolvedAction;
+
+  for (let depth = 0; depth < 12 && current && current !== postElement; depth++) {
+    const parent = current.parentElement;
+    if (!parent || !postElement.contains(parent) || parent === postElement) {
+      break;
+    }
+
+    if (hasMainPostContentSignal(parent)) {
+      break;
+    }
+
+    const parentLooksFeedback =
+      (commentBoundary && parent.contains(commentBoundary))
+      || hasCommentComposerSignal(parent)
+      || hasCommentSortSignal(parent)
+      || hasCommentContentSignal(parent);
+
+    if (!parentLooksFeedback) {
+      // Keep climbing through transparent wrappers that only wrap this subtree.
+      if (parent.childElementCount === 1) {
+        candidate = parent;
+        current = parent;
+        continue;
+      }
+      break;
+    }
+
+    candidate = parent;
+    current = parent;
+  }
+
+  return candidate;
+}
+
 function isReliableActionBarCandidate(postElement, candidate) {
   if (!postElement || !candidate || !candidate.isConnected || !postElement.contains(candidate)) {
     return false;
@@ -772,6 +833,13 @@ function positionTrackerInsertionMarker(postElement, marker, buttonBar, postNum
 
   const resolvedButtonBar = resolveActionButtonBar(postElement, buttonBar);
   const actionAnchor = getDirectActionAnchorInPost(postElement, resolvedButtonBar);
+  const feedbackAnchor = findFeedbackSectionAnchor(postElement, actionAnchor || resolvedButtonBar);
+
+  if (feedbackAnchor && insertMarkerBeforeAnchor(postElement, marker, feedbackAnchor)) {
+    setTrackerInsertionMarkerLocked(marker, true);
+    console.log('[FB Tracker] Post #' + postNum + ' - Marker inserted above feedback section');
+    return true;
+  }
 
   if (actionAnchor && insertMarkerBeforeAnchor(postElement, marker, actionAnchor)) {
     setTrackerInsertionMarkerLocked(marker, true);
@@ -805,6 +873,18 @@ function isTrackerInsertionMarkerPlacementValid(postElement, marker, buttonBar)
   }
 
   const actionAnchor = getDirectActionAnchorInPost(postElement, buttonBar);
+  const feedbackAnchor = findFeedbackSectionAnchor(postElement, actionAnchor || buttonBar);
+  if (feedbackAnchor && isNodeAfter(marker, feedbackAnchor)) {
+    return false;
+  }
+
+  if (feedbackAnchor && marker.parentElement === feedbackAnchor.parentElement) {
+    const nextSibling = getNextNonTrackerSibling(marker);
+    if (nextSibling && nextSibling !== feedbackAnchor) {
+      return false;
+    }
+  }
+
   if (actionAnchor) {
     if (isNodeAfter(marker, actionAnchor)) {
       return false;