Handle long press (aleksanderwozniak#102)

mnlt24 · Nov 3, 2019 · d41fd7b · d41fd7b
1 parent dd2124e
commit d41fd7b
Show file tree

Hide file tree

Showing 2 changed files with 27 additions and 11 deletions.
diff --git a/lib/src/calendar.dart b/lib/src/calendar.dart
@@ -57,6 +57,9 @@ class TableCalendar extends StatefulWidget {
   /// Called whenever any day gets tapped.
   final OnDaySelected onDaySelected;
 
+  /// Called whenever any day gets long pressed.
+  final OnDaySelected onDayLongPressed;
+
   /// Called whenever any unavailable day gets tapped.
   /// Replaces `onDaySelected` for those days.
   final VoidCallback onUnavailableDaySelected;
@@ -132,14 +135,18 @@ class TableCalendar extends StatefulWidget {
   /// Set of Builders for `TableCalendar` to work with.
   final CalendarBuilders builders;
 
+  final VoidCallback onUnavailableDayLongPressed;
+
   TableCalendar({
     Key key,
     @required this.calendarController,
     this.locale,
     this.events = const {},
     this.holidays = const {},
     this.onDaySelected,
+    this.onDayLongPressed,
     this.onUnavailableDaySelected,
+    this.onUnavailableDayLongPressed,
     this.onVisibleDaysChanged,
     this.initialSelectedDay,
     this.startDay,
@@ -235,6 +242,13 @@ class _TableCalendarState extends State<TableCalendar> with SingleTickerProvider
     });
   }
 
+  void _onDayLongPressed(DateTime day) {
+    if (widget.onDayLongPressed != null) {
+      final key = widget.calendarController.visibleEvents.keys.firstWhere((it) => Utils.isSameDay(it, day), orElse: () => null);
+      widget.onDayLongPressed(day, widget.calendarController.visibleEvents[key] ?? []);
+    }
+  }
+
   void _toggleCalendarFormat() {
     setState(() {
       widget.calendarController.toggleCalendarFormat();
@@ -257,9 +271,14 @@ class _TableCalendarState extends State<TableCalendar> with SingleTickerProvider
     }
   }
 
+  void _onUnavailableDayLongPressed() {
+    if (widget.onUnavailableDayLongPressed != null) {
+      widget.onUnavailableDayLongPressed();
+    }
+  }
+
   bool _isDayUnavailable(DateTime day) {
-    return (widget.startDay != null && day.isBefore(widget.startDay)) ||
-        (widget.endDay != null && day.isAfter(widget.endDay));
+    return (widget.startDay != null && day.isBefore(widget.startDay)) || (widget.endDay != null && day.isAfter(widget.endDay));
   }
 
   DateTime _getEventKey(DateTime day) {
@@ -423,8 +442,7 @@ class _TableCalendarState extends State<TableCalendar> with SingleTickerProvider
       switchInCurve: Curves.decelerate,
       transitionBuilder: (child, animation) {
         return SlideTransition(
-          position:
-              Tween<Offset>(begin: Offset(widget.calendarController._dx, 0), end: Offset(0, 0)).animate(animation),
+          position: Tween<Offset>(begin: Offset(widget.calendarController._dx, 0), end: Offset(0, 0)).animate(animation),
           child: child,
         );
       },
@@ -558,6 +576,7 @@ class _TableCalendarState extends State<TableCalendar> with SingleTickerProvider
     return GestureDetector(
       behavior: widget.dayHitTestBehavior,
       onTap: () => _isDayUnavailable(date) ? _onUnavailableDaySelected() : _selectDay(date),
+      onLongPress: () => _isDayUnavailable(date) ? _onUnavailableDayLongPressed() : _onDayLongPressed(date),
       child: content,
     );
   }
@@ -577,8 +596,7 @@ class _TableCalendarState extends State<TableCalendar> with SingleTickerProvider
     final isToday = widget.builders.todayDayBuilder != null && tIsToday;
     final isOutsideHoliday = widget.builders.outsideHolidayDayBuilder != null && tIsOutside && tIsHoliday;
     final isHoliday = widget.builders.holidayDayBuilder != null && !tIsOutside && tIsHoliday;
-    final isOutsideWeekend =
-        widget.builders.outsideWeekendDayBuilder != null && tIsOutside && tIsWeekend && !tIsHoliday;
+    final isOutsideWeekend = widget.builders.outsideWeekendDayBuilder != null && tIsOutside && tIsWeekend && !tIsHoliday;
     final isOutside = widget.builders.outsideDayBuilder != null && tIsOutside && !tIsWeekend && !tIsHoliday;
     final isWeekend = widget.builders.weekendDayBuilder != null && !tIsOutside && tIsWeekend && !tIsHoliday;
 

diff --git a/lib/src/calendar_controller.dart b/lib/src/calendar_controller.dart
@@ -231,9 +231,8 @@ class CalendarController {
     return formats[id];
   }
 
-  String _getFormatButtonText() => _useNextCalendarFormat
-      ? _availableCalendarFormats[_nextFormat()]
-      : _availableCalendarFormats[_calendarFormat.value];
+  String _getFormatButtonText() =>
+      _useNextCalendarFormat ? _availableCalendarFormats[_nextFormat()] : _availableCalendarFormats[_calendarFormat.value];
 
   void _selectPrevious() {
     if (calendarFormat == CalendarFormat.month) {
@@ -386,8 +385,7 @@ class CalendarController {
   }
 
   DateTime _lastDayOfMonth(DateTime month) {
-    final date =
-        month.month < 12 ? DateTime.utc(month.year, month.month + 1, 1, 12) : DateTime.utc(month.year + 1, 1, 1, 12);
+    final date = month.month < 12 ? DateTime.utc(month.year, month.month + 1, 1, 12) : DateTime.utc(month.year + 1, 1, 1, 12);
     return date.subtract(const Duration(days: 1));
   }