Buttons for previous and next month

epicyon-calendar.css

@@ -139,3 +139,11 @@ tr:nth-child(even) > .calendar__day__cell:nth-child(even) {
     height: 5rem;
     text-transform: uppercase;
 }
+.buttonprev {
+    width: 2%;
+}
+.buttonnext {
+    width: 2%;
+    -webkit-transform: scaleX(-1);
+    transform: scaleX(-1);
+}

webinterface.py

@@ -2838,6 +2838,18 @@ def htmlCalendar(translate: {}, \
         year=currDate.year
         monthNumber=currDate.month
 
+    prevYear=year
+    prevMonthNumber=monthNumber-1
+    if prevMonthNumber<1:
+        prevMonthNumber=12
+        prevYear=year-1
+
+    nextYear=year
+    nextMonthNumber=monthNumber+1
+    if nextMonthNumber>12:
+        nextMonthNumber=1
+        nextYear=year+1
+
     print('Calendar year='+str(year)+' month='+str(monthNumber)+ ' '+str(weekDayOfMonthStart(monthNumber,year)))
     
     nickname=getNicknameFromActor(actor)
@@ -2866,7 +2878,11 @@ def htmlCalendar(translate: {}, \
     calendarStr=htmlHeader(cssFilename,calendarStyle)
     calendarStr+='<main><table class="calendar">\n'
     calendarStr+='<caption class="calendar__banner--month">\n'
+    calendarStr+='  <a href="'+actor+'/calendar?year='+str(prevYear)+'?month='+str(prevMonthNumber)+'">'
+    calendarStr+='  <img src="/icons/prev.png" class="buttonprev"/></a>\n'
     calendarStr+='  <h1>'+monthName+'</h1>\n'
+    calendarStr+='  <a href="'+actor+'/calendar?year='+str(nextYear)+'?month='+str(nextMonthNumber)+'">'
+    calendarStr+='  <img src="/icons/prev.png" class="buttonnext"/></a>\n'
     calendarStr+='</caption>\n'
     calendarStr+='<thead>\n'
     calendarStr+='<tr>\n'