/// <summary>
/// Returns the text label of the CalendarDayButton that is associated
/// with this CalendarDayButtonAutomationPeer. This method is called by
/// GetName.
/// </summary>
/// <returns>
/// The text label of the element that is associated with this
/// automation peer.
/// </returns>
/// <remarks>
/// The name property can be thought of as the string of text that a
/// user would use to explain which control is being referred to. It is
/// important to have a textual representation for all controls in the
/// graphical user interface (GUI) so that you can programmatically
/// refer to the control in a localized manner. The value is settable
/// on control instances through the AutomationProperties.Name attached
/// property.
/// </remarks>
protected override string GetNameCore()
{
string name = base.GetNameCore();
if (string.IsNullOrEmpty(name))
{
AutomationPeer labeledBy = GetLabeledByCore();
if (labeledBy != null)
{
name = labeledBy.GetName();
}
CalendarExDayButton button = OwningCalendarDayButton;
if (string.IsNullOrEmpty(name) && button != null)
{
if (button.DataContext is DateTime)
{
name = ((DateTime)button.DataContext).ToLongDateString();
}
else if (button.Content != null)
{
name = string.Format(DateTimeHelper.GetCurrentDateFormat(), button.Content.ToString());
}
}
}
return(name);
}
/// <summary>
/// Raise an automation peer event for the selection of a day button.
/// </summary>
/// <param name="calendar">
/// The Calendar associated with this automation peer.
/// </param>
/// <param name="date">The selected date.</param>
/// <param name="eventToRaise">The selection event to raise.</param>
private static void RaiseDayButtonSelectionEvent(CalendarEx calendar, DateTime date, AutomationEvents eventToRaise)
{
CalendarExDayButton button = calendar.FindDayButtonFromDay(date);
if (button != null)
{
AutomationPeer peer = FrameworkElementAutomationPeer.FromElement(button);
if (peer != null)
{
peer.RaiseAutomationEvent(eventToRaise);
}
}
}
/// <summary>
/// Clear any existing selection and then selects the current element.
/// </summary>
void ISelectionItemProvider.Select()
{
if (EnsureSelection())
{
CalendarEx calendar = OwningCalendar;
CalendarExDayButton button = OwningCalendarDayButton;
calendar.SelectedDates.Clear();
if (button.DataContext != null)
{
calendar.SelectedDates.Add((DateTime)button.DataContext);
}
}
}
/// <summary>
/// Returns the string that describes the functionality of the
/// CalendarDayButton that is associated with this
/// CalendarDayButtonAutomationPeer. This method is called by
/// GetHelpText.
/// </summary>
/// <returns>
/// The help text, or String.Empty if there is no help text.
/// </returns>
protected override string GetHelpTextCore()
{
CalendarExDayButton button = OwningCalendarDayButton;
if (button != null && button.DataContext != null && button.DataContext is DateTime)
{
DateTime dataContext = (DateTime)OwningCalendarDayButton.DataContext;
Globalization.DateTimeFormatInfo info = DateTimeHelper.GetCurrentDateFormat();
return(!button.IsBlackout ?
dataContext.Date.ToString(info.LongDatePattern, info) :
string.Format(info, System.Windows.Controls.Properties.Resources.CalendarAutomationPeer_BlackoutDayHelpText, dataContext.Date.ToString(info.LongDatePattern, info)));
}
return(base.GetHelpTextCore());
}
/// <summary>
/// Removes the current element from the collection of selected items.
/// </summary>
void ISelectionItemProvider.RemoveFromSelection()
{
// Return if the item is not already selected.
CalendarExDayButton button = OwningCalendarDayButton;
if (!button.IsSelected)
{
return;
}
CalendarEx calendar = OwningCalendar;
if (calendar != null && button.DataContext != null)
{
calendar.SelectedDates.Remove((DateTime)button.DataContext);
}
}
/// <summary>
/// Ensure selection of the CalendarDayButton is possible.
/// </summary>
/// <returns>
/// A value indicating whether selection of the CalendarDayButton is
/// possible.
/// </returns>
private bool EnsureSelection()
{
CalendarExDayButton button = OwningCalendarDayButton;
if (!button.IsEnabled)
{
throw new ElementNotEnabledException();
}
// If the day is a blackout day or the SelectionMode is None,
// selection is not allowed
CalendarEx calendar = OwningCalendar;
return(!button.IsBlackout &&
button.Visibility != Visibility.Collapsed &&
calendar != null &&
calendar.SelectionMode != CalendarExSelectionMode.None);
}
/// <summary>
/// Adds the current element to the collection of selected items.
/// </summary>
void ISelectionItemProvider.AddToSelection()
{
// Return if the item is already selected
CalendarExDayButton button = OwningCalendarDayButton;
if (button.IsSelected)
{
return;
}
CalendarEx calendar = OwningCalendar;
if (EnsureSelection() && button.DataContext != null)
{
if (calendar.SelectionMode == CalendarExSelectionMode.SingleDate)
{
calendar.SelectedDate = (DateTime)button.DataContext;
}
else
{
calendar.SelectedDates.Add((DateTime)button.DataContext);
}
}
}
/// <summary>
/// Initializes a new instance of the
/// <see cref="T:System.Windows.Automation.Peers.CalendarDayButtonAutomationPeer" />
/// class.
/// </summary>
/// <param name="owner">
/// The
/// <see cref="T:System.Windows.Controls.Primitives.CalendarDayButton" />
/// instance that is associated with this
/// <see cref="T:System.Windows.Automation.Peers.CalendarDayButtonAutomationPeer" />.
/// </param>
public CalendarExDayButtonAutomationPeer(CalendarExDayButton owner)
: base(owner)
{
}
