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Prevent navigation outside minimum and maximum date range #114

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Prevent navigation outside minimum and maximum date range #114

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28 changes: 22 additions & 6 deletions src/Calendar.Plugin/Shared/Controls/Calendar.xaml.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -1235,22 +1235,38 @@ private int GetWeekNumber(DateTime date)

private void PrevUnit()
{
ShownDate = _viewLayoutEngine.GetPreviousUnit(ShownDate);
var targetDate = _viewLayoutEngine.GetPreviousUnit(ShownDate);

ShownDate = targetDate < MinimumDate
? MinimumDate
: targetDate;
}

private void NextUnit()
{
ShownDate = _viewLayoutEngine.GetNextUnit(ShownDate);
var targetDate = _viewLayoutEngine.GetNextUnit(ShownDate);

ShownDate = targetDate > MaximumDate
? MaximumDate
: targetDate;
}

private void NextYear(object obj)
private void PrevYear(object obj)
{
ShownDate = ShownDate.AddYears(1);
var targetDate = ShownDate.AddYears(-1);

ShownDate = targetDate < MinimumDate
? MinimumDate
: targetDate;
}

private void PrevYear(object obj)
private void NextYear(object obj)
{
ShownDate = ShownDate.AddYears(-1);
var targetDate = ShownDate.AddYears(1);

ShownDate = targetDate > MaximumDate
? MaximumDate
: targetDate;
}

private void ToggleCalendarSectionVisibility()
Expand Down