From 51867db83d47910f694db856291ce30add0fb97e Mon Sep 17 00:00:00 2001
From: peacechen <github@ghpc.33mail.com>
Date: Fri, 26 Jun 2020 17:22:46 -0500
Subject: [PATCH] Fix scrollable nav arrows at min/maxDate edges (#202).

---
 src/Scroller.js | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/Scroller.js b/src/Scroller.js
index 131df13..b765342 100644
--- a/src/Scroller.js
+++ b/src/Scroller.js
@@ -97,11 +97,11 @@ export default class CalendarScroller extends Component {
 
   // Scroll right, guarding against end index.
   scrollRight = () => {
-    const endIndex = this.state.visibleStartIndex + this.state.numVisibleItems;
-    if (endIndex === (this.state.numDays - 1)) {
+    const newIndex = this.state.visibleStartIndex + this.state.numVisibleItems;
+    if (newIndex >= (this.state.numDays - 1)) {
+      this.rlv.scrollToEnd(true); // scroll to the very end, including padding
       return;
     }
-    const newIndex = Math.min(endIndex, this.state.numDays - 1 - this.state.numVisibleItems);
     this.rlv.scrollToIndex(newIndex, true);
   }
 
@@ -193,10 +193,12 @@ export default class CalendarScroller extends Component {
     {
       const visStart = visibleStartDate && visibleStartDate.clone();
       const visEnd = visibleEndDate && visibleEndDate.clone();
-      updateMonthYear && updateMonthYear(visStart, visEnd);
       onWeekChanged && onWeekChanged(visStart, visEnd);
     }
 
+    // Always update weekstart/end for WeekSelectors.
+    updateMonthYear && updateMonthYear(visibleStartDate, visibleEndDate);
+
     if (visibleStartIndex === 0) {
       this.shiftDaysBackward(visibleStartDate);
     } else {