From 46937947466ec309c230951520bc5dfa091ea759 Mon Sep 17 00:00:00 2001
From: Pedro Abreu <pmig.abreu@gmail.com>
Date: Wed, 15 Aug 2018 21:14:34 +0100
Subject: [PATCH] Rename to shouldDisableMonthNavigation

---
 src/components/DayPickerRangeController.jsx   | 50 +++++++++++--------
 .../DayPickerRangeController_spec.jsx         |  8 +--
 2 files changed, 33 insertions(+), 25 deletions(-)

diff --git a/src/components/DayPickerRangeController.jsx b/src/components/DayPickerRangeController.jsx
index 9530567460..e12c3f9b7c 100644
--- a/src/components/DayPickerRangeController.jsx
+++ b/src/components/DayPickerRangeController.jsx
@@ -660,7 +660,13 @@ export default class DayPickerRangeController extends React.PureComponent {
   }
 
   onPrevMonthClick() {
-    const { onPrevMonthClick, numberOfMonths, enableOutsideDays } = this.props;
+    const {
+      enableOutsideDays,
+      maxDate,
+      minDate,
+      numberOfMonths,
+      onPrevMonthClick,
+    } = this.props;
     const { currentMonth, visibleDays } = this.state;
 
     const newVisibleDays = {};
@@ -674,7 +680,8 @@ export default class DayPickerRangeController extends React.PureComponent {
     const newCurrentMonth = currentMonth.clone().subtract(1, 'month');
     this.setState({
       currentMonth: newCurrentMonth,
-      ...this.getNavigationStatus(newCurrentMonth),
+      disablePrev: this.shouldDisableMonthNavigation(minDate, newCurrentMonth),
+      disableNext: this.shouldDisableMonthNavigation(maxDate, newCurrentMonth),
       visibleDays: {
         ...newVisibleDays,
         ...this.getModifiers(prevMonthVisibleDays),
@@ -685,7 +692,13 @@ export default class DayPickerRangeController extends React.PureComponent {
   }
 
   onNextMonthClick() {
-    const { onNextMonthClick, numberOfMonths, enableOutsideDays } = this.props;
+    const {
+      enableOutsideDays,
+      maxDate,
+      minDate,
+      numberOfMonths,
+      onNextMonthClick,
+    } = this.props;
     const { currentMonth, visibleDays } = this.state;
 
     const newVisibleDays = {};
@@ -698,7 +711,8 @@ export default class DayPickerRangeController extends React.PureComponent {
     const newCurrentMonth = currentMonth.clone().add(1, 'month');
     this.setState({
       currentMonth: newCurrentMonth,
-      ...this.getNavigationStatus(newCurrentMonth),
+      disablePrev: this.shouldDisableMonthNavigation(minDate, newCurrentMonth),
+      disableNext: this.shouldDisableMonthNavigation(maxDate, newCurrentMonth),
       visibleDays: {
         ...newVisibleDays,
         ...this.getModifiers(nextMonthVisibleDays),
@@ -756,23 +770,6 @@ export default class DayPickerRangeController extends React.PureComponent {
     });
   }
 
-  getNavigationStatus(visibleMonth) {
-    const {
-      minDate,
-      maxDate,
-      numberOfMonths,
-      enableOutsideDays,
-    } = this.props;
-
-    const isMinDateVisible = isDayVisible(minDate, visibleMonth, numberOfMonths, enableOutsideDays);
-    const isMaxDateVisible = isDayVisible(maxDate, visibleMonth, numberOfMonths, enableOutsideDays);
-
-    return {
-      disablePrev: isMinDateVisible,
-      disableNext: isMaxDateVisible,
-    };
-  }
-
   getFirstFocusableDay(newMonth) {
     const {
       startDate,
@@ -848,6 +845,17 @@ export default class DayPickerRangeController extends React.PureComponent {
     return { currentMonth, visibleDays };
   }
 
+  shouldDisableMonthNavigation(date, visibleMonth) {
+    if (!date) return false;
+
+    const {
+      numberOfMonths,
+      enableOutsideDays,
+    } = this.props;
+
+    return isDayVisible(date, visibleMonth, numberOfMonths, enableOutsideDays);
+  }
+
   addModifier(updatedDays, day, modifier) {
     const { numberOfMonths: numberOfVisibleMonths, enableOutsideDays, orientation } = this.props;
     const { currentMonth: firstVisibleMonth, visibleDays } = this.state;
diff --git a/test/components/DayPickerRangeController_spec.jsx b/test/components/DayPickerRangeController_spec.jsx
index c212e96071..b57f1c9354 100644
--- a/test/components/DayPickerRangeController_spec.jsx
+++ b/test/components/DayPickerRangeController_spec.jsx
@@ -2050,17 +2050,17 @@ describe('DayPickerRangeController', () => {
       expect(onPrevMonthClickStub.firstCall.args[0].month()).to.equal(newMonth.month());
     });
 
-    it('calls this.getNavigationStatus', () => {
-      const getNavigationStatusSpy = sinon.spy(DayPickerRangeController.prototype, 'getNavigationStatus');
+    it('calls this.shouldDisableMonthNavigation twice', () => {
+      const shouldDisableMonthNavigationSpy = sinon.spy(DayPickerRangeController.prototype, 'shouldDisableMonthNavigation');
       const wrapper = shallow((
         <DayPickerRangeController
           onDatesChange={sinon.stub()}
           onFocusChange={sinon.stub()}
         />
       ));
-      getNavigationStatusSpy.resetHistory();
+      shouldDisableMonthNavigationSpy.resetHistory();
       wrapper.instance().onPrevMonthClick();
-      expect(getNavigationStatusSpy.callCount).to.equal(1);
+      expect(shouldDisableMonthNavigationSpy.callCount).to.equal(2);
     });
 
     it('sets disablePrev and disablePrev as false on onPrevMonthClick call withouth maxDate and minDate set', () => {