From c20d86e5c010f75aa41f54c9249f441b558d766a Mon Sep 17 00:00:00 2001
From: len <len@kanade.eu>
Date: Mon, 9 May 2016 13:23:57 +0200
Subject: [PATCH] Category update can only be triggered when the list is at the
 top

---
 .../tachiyomi/ui/library/LibraryCategoryFragment.kt   | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryCategoryFragment.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryCategoryFragment.kt
index 42e67a8fe..0a6e68935 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryCategoryFragment.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryCategoryFragment.kt
@@ -2,6 +2,8 @@ package eu.kanade.tachiyomi.ui.library
 
 import android.content.res.Configuration
 import android.os.Bundle
+import android.support.v7.widget.LinearLayoutManager
+import android.support.v7.widget.RecyclerView
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -102,6 +104,15 @@ class LibraryCategoryFragment : BaseFragment(), FlexibleViewHolder.OnListItemCli
             }
         }
 
+        recycler.addOnScrollListener(object : RecyclerView.OnScrollListener() {
+            override fun onScrollStateChanged(recycler: RecyclerView, newState: Int) {
+                // Disable swipe refresh when view is not at the top
+                val firstPos = (recycler.layoutManager as LinearLayoutManager)
+                        .findFirstCompletelyVisibleItemPosition()
+                swipe_refresh.isEnabled = firstPos == 0
+            }
+        })
+
         swipe_refresh.setOnRefreshListener {
             if (!LibraryUpdateService.isRunning(activity)) {
                 libraryPresenter.categories.getOrNull(position)?.let {