protected override void OnManipulationCompleted(ManipulationCompletedRoutedEventArgs e)
{
LoopItemsPickerPanel itemsPanel = e.Container as LoopItemsPickerPanel;
if (itemsPanel == null)
{
return;
}
PickerSelectorItem selectorItem = itemsPanel.GetMiddleItem();
if (selectorItem == null)
{
return;
}
DateTimeWrapper dateTimeWrapper = selectorItem.DataContext as DateTimeWrapper;
if (dateTimeWrapper == null)
{
return;
}
this.Value = dateTimeWrapper.DateTime;
}
/// <summary>
/// Update selected or not selected items state
/// </summary>
private void UpdateIsSelectedItems(DateTimeWrapper selectedValue)
{
if (this.Items == null || this.Items.Count <= 0)
{
return;
}
if (this.itemsPanel == null)
{
return;
}
if (selectedValue == null)
{
return;
}
foreach (PickerSelectorItem pickerSelectorItem in this.itemsPanel.Children)
{
DateTimeWrapper currentValue = (DateTimeWrapper)pickerSelectorItem.DataContext;
pickerSelectorItem.IsSelected = selectedValue.DateTime == currentValue.DateTime;
if (pickerSelectorItem.IsSelected)
{
selectedPickerSelectorItem = pickerSelectorItem;
}
}
}
/// <summary>
/// Maybe this method is Obsolet : TODO : Test obsoletence
/// </summary>
/// <param name="e"></param>
protected override void OnManipulationCompleted(ManipulationCompletedRoutedEventArgs e)
{
PickerSelectorItem middleItem = this.itemsPanel.GetMiddleItem();
if (middleItem == null)
{
return;
}
this.SelectedItem = middleItem.DataContext as DateTimeWrapper;
base.OnManipulationCompleted(e);
}
/// <summary>
/// Override of OnApplyTemplate
/// </summary>
protected override void OnApplyTemplate()
{
base.OnApplyTemplate();
this.InitializationInProgress = true;
primarySelector = GetTemplateChild(PrimarySelectorName) as PickerSelector;
secondarySelector = GetTemplateChild(SecondarySelectorName) as PickerSelector;
tertiarySelector = GetTemplateChild(TertiarySelectorName) as PickerSelector;
// Create wrapper on current value
var wrapper = new DateTimeWrapper(Value);
// Init Selectors
// Set Datasource
if (primarySelector != null)
{
primarySelector.DatePicker = this;
primarySelector.YearDataSource = new YearDataSource();
primarySelector.DataSourceType = DataSourceType.Year;
primarySelector.CreateOrUpdateItems(wrapper.DateTime);
}
if (secondarySelector != null)
{
secondarySelector.DatePicker = this;
secondarySelector.MonthDataSource = new MonthDataSource();
secondarySelector.DataSourceType = DataSourceType.Month;
secondarySelector.CreateOrUpdateItems(wrapper.DateTime);
}
if (tertiarySelector != null)
{
tertiarySelector.DatePicker = this;
tertiarySelector.DayDataSource = new DayDataSource();
tertiarySelector.DataSourceType = DataSourceType.Day;
tertiarySelector.CreateOrUpdateItems(wrapper.DateTime);
}
this.ResetPickersOrder();
this.InitializationInProgress = false;
}
/// <summary>
/// On Tapped, make focus on the good PickerSelector
/// </summary>
protected override void OnTapped(TappedRoutedEventArgs e)
{
RefreshRect();
Point point = e.GetPosition(this);
FocusPickerSelector(point, FocusSourceType.Tap);
PickerSelector selector = null;
if (primarySelector != null && point.X > primarySelector.RectPosition.X &&
point.X < (primarySelector.RectPosition.X + primarySelector.RectPosition.Width))
{
selector = primarySelector;
}
if (secondarySelector != null && point.X > secondarySelector.RectPosition.X &&
point.X < (secondarySelector.RectPosition.X + secondarySelector.RectPosition.Width))
{
selector = secondarySelector;
}
if (tertiarySelector != null && point.X > tertiarySelector.RectPosition.X &&
point.X < (tertiarySelector.RectPosition.X + tertiarySelector.RectPosition.Width))
{
selector = tertiarySelector;
}
if (selector != null)
{
DateTimeWrapper dateTimeWrapper = selector.SelectedItem;
if (dateTimeWrapper == null)
{
return;
}
this.Value = dateTimeWrapper.DateTime;
}
}
/// <summary>
/// Prepares the specified element to display the specified item.
/// </summary>
protected override void PrepareContainerForItemOverride(DependencyObject element, object item)
{
if (DesignMode.DesignModeEnabled)
{
return;
}
itemsPanel = this.GetVisualDescendent <LoopItemsPickerPanel>();
// get the item
PickerSelectorItem loopListItem = element as PickerSelectorItem;
DateTimeWrapper dateTimeWrapper = item as DateTimeWrapper;
if (loopListItem == null || dateTimeWrapper == null)
{
return;
}
if (this.ItemTemplate == null)
{
return;
}
// load data templated
var contentElement = this.ItemTemplate.LoadContent() as FrameworkElement;
if (contentElement == null)
{
return;
}
// attach DataContext and Context to the item
loopListItem.Style = ItemContainerStyle;
loopListItem.DataContext = item;
loopListItem.Content = contentElement;
loopListItem.IsSelected = dateTimeWrapper == this.SelectedItem;
loopListItem.IsFocused = this.IsFocused;
}
/// <summary>
/// Update Items. Used for days
/// </summary>
internal void CreateOrUpdateItems(DateTime dateTime)
{
if (this.Items == null)
{
return;
}
DateTimeWrapper selectedDateTimeWrapper = null;
int newMax;
DateTime firstAvailableDate = GetFirstAvailable(dateTime, out newMax);
// Make a copy without any minutes / seconds ...
DateTimeWrapper newData =
new DateTimeWrapper(new DateTime(firstAvailableDate.Year,
firstAvailableDate.Month,
firstAvailableDate.Day));
// One item is deleted but was selected..
// Don't forget to reactivate a selected item
Boolean oneItemMustBeDeletedAndIsSelected = false;
// If new month have less day than last month
if (newMax < this.Items.Count)
{
int numberOfLastDaysToDelete = this.Items.Count - newMax;
for (int cpt = 0; cpt < numberOfLastDaysToDelete; cpt++)
{
PickerSelectorItem item =
this.ItemContainerGenerator.ContainerFromItem(this.Items[this.Items.Count - 1]) as PickerSelectorItem;
if (item == null)
{
continue;
}
if (item.IsSelected)
{
oneItemMustBeDeletedAndIsSelected = true;
}
this.Items.RemoveAt(this.Items.Count - 1);
}
}
for (int i = 0; i < newMax; i++)
{
// -----------------------------------------------------------------------------
// Add or Update Items
// -----------------------------------------------------------------------------
if (this.Items.Count <= i)
{
this.Items.Add(newData);
}
else
{
// Verify the item already exists
var itemDate = ((DateTimeWrapper)this.Items[i]).DateTime;
if (itemDate != newData.DateTime)
{
this.Items[i] = newData;
}
}
// -----------------------------------------------------------------------------
// Get the good selected itm
// -----------------------------------------------------------------------------
if (newData.DateTime == dateTime)
{
selectedDateTimeWrapper = newData;
}
// -----------------------------------------------------------------------------
// Get the next data, relative to original wrapper, then relative to firstWrapper
// -----------------------------------------------------------------------------
DateTime?nextData = null;
// Get nex date
switch (this.DataSourceType)
{
case DataSourceType.Year:
nextData = this.YearDataSource.GetNext(dateTime, firstAvailableDate, i + 1);
break;
case DataSourceType.Month:
nextData = this.MonthDataSource.GetNext(dateTime, firstAvailableDate, i + 1);
break;
case DataSourceType.Day:
nextData = this.DayDataSource.GetNext(dateTime, firstAvailableDate, i + 1);
break;
}
if (nextData == null)
{
break;
}
newData = nextData.Value.ToDateTimeWrapper();
}
// Set the correct Selected Item
if (selectedDateTimeWrapper != null)
{
this.SelectedItem = selectedDateTimeWrapper;
}
else if (oneItemMustBeDeletedAndIsSelected) // When 31 was selected and we are on a Month < 31 days (February, April ...)
{
this.SelectedItem = (DateTimeWrapper)this.Items[this.Items.Count - 1];
}
else
{
this.SelectedItem = (DateTimeWrapper)this.Items[0];
}
}
