From d6e5b1612cacf5420f31db9ed5b3d8445fb94802 Mon Sep 17 00:00:00 2001
From: katopz <katopz@gmail.com>
Date: Fri, 10 Jul 2015 15:29:16 +0700
Subject: [PATCH] fixed `fatal error: unexpectedly found nil while unwrapping
 an Optional value` for currentPage when swipe left for menu at cover page.

---
 FolioReaderKit/FolioReaderCenter.swift | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/FolioReaderKit/FolioReaderCenter.swift b/FolioReaderKit/FolioReaderCenter.swift
index 2fc0ce73c..04556748c 100644
--- a/FolioReaderKit/FolioReaderCenter.swift
+++ b/FolioReaderKit/FolioReaderCenter.swift
@@ -243,12 +243,12 @@ class FolioReaderCenter: UIViewController, UICollectionViewDelegate, UICollectio
     
     func container(didExpandLeftPanel sidePanel: FolioReaderSidePanel) {
         collectionView.scrollEnabled = false
-        currentPage.webView.scrollView.scrollEnabled = false
+        currentPage?.webView.scrollView.scrollEnabled = false
     }
     
     func container(didCollapseLeftPanel sidePanel: FolioReaderSidePanel) {
         collectionView.scrollEnabled = true
-        currentPage.webView.scrollView.scrollEnabled = true
+        currentPage?.webView.scrollView.scrollEnabled = true
     }
     
     func container(sidePanel: FolioReaderSidePanel, didSelectRowAtIndexPath indexPath: NSIndexPath, withTocReference reference: FRTocReference) {