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//---------------------------------------------------------------------------
//
// Copyright (C) Microsoft Corporation. All rights reserved.
//
//---------------------------------------------------------------------------
using System.Windows;
using System.Windows.Automation.Peers;
using System.Windows.Controls;
using System.Windows.Data;
namespace System.Windows.Controls.Primitives
{
/// <summary>
/// Represents a button control used in Calendar Control, which reacts to the Click event.
/// </summary>
public sealed class CalendarButton : Button
{
/// <summary>
/// Static constructor
/// </summary>
static CalendarButton()
{
DefaultStyleKeyProperty.OverrideMetadata(typeof(CalendarButton), new FrameworkPropertyMetadata(typeof(CalendarButton)));
}
/// <summary>
/// Represents the CalendarButton that is used in Calendar Control.
/// </summary>
public CalendarButton()
: base()
{
}
#region Public Properties
#region HasSelectedDays
internal static readonly DependencyPropertyKey HasSelectedDaysPropertyKey = DependencyProperty.RegisterReadOnly(
"HasSelectedDays",
typeof(bool),
typeof(CalendarButton),
new FrameworkPropertyMetadata(false, new PropertyChangedCallback(OnVisualStatePropertyChanged)));
/// <summary>
/// Dependency property field for HasSelectedDays property
/// </summary>
public static readonly DependencyProperty HasSelectedDaysProperty = HasSelectedDaysPropertyKey.DependencyProperty;
/// <summary>
/// True if the CalendarButton represents a date range containing the display date
/// </summary>
public bool HasSelectedDays
{
get { return (bool)GetValue(HasSelectedDaysProperty); }
internal set { SetValue(HasSelectedDaysPropertyKey, value); }
}
#endregion HasSelectedDays
#region IsInactive
internal static readonly DependencyPropertyKey IsInactivePropertyKey = DependencyProperty.RegisterReadOnly(
"IsInactive",
typeof(bool),
typeof(CalendarButton),
new FrameworkPropertyMetadata(false, new PropertyChangedCallback(OnVisualStatePropertyChanged)));
/// <summary>
/// Dependency property field for IsInactive property
/// </summary>
public static readonly DependencyProperty IsInactiveProperty = IsInactivePropertyKey.DependencyProperty;
/// <summary>
/// True if the CalendarButton represents
/// a month that falls outside the current year
/// or
/// a year that falls outside the current decade
/// </summary>
public bool IsInactive
{
get { return (bool)GetValue(IsInactiveProperty); }
internal set { SetValue(IsInactivePropertyKey, value); }
}
#endregion IsInactive
#endregion Public Properties
#region Internal Properties
internal Calendar Owner
{
get;
set;
}
#endregion Internal Properties
#region Public Methods
#endregion Public Methods
#region Protected Methods
/// <summary>
/// Change to the correct visual state for the button.
/// </summary>
/// <param name="useTransitions">
/// true to use transitions when updating the visual state, false to
/// snap directly to the new visual state.
/// </param>
internal override void ChangeVisualState(bool useTransitions)
{
// Update the SelectionStates group
if (HasSelectedDays)
{
VisualStates.GoToState(this, useTransitions, VisualStates.StateSelected, VisualStates.StateUnselected);
}
else
{
VisualStateManager.GoToState(this, VisualStates.StateUnselected, useTransitions);
}
// Update the ActiveStates group
if (!IsInactive)
{
VisualStates.GoToState(this, useTransitions, VisualStates.StateActive, VisualStates.StateInactive);
}
else
{
VisualStateManager.GoToState(this, VisualStates.StateInactive, useTransitions);
}
// Update the FocusStates group
if (IsKeyboardFocused)
{
VisualStates.GoToState(this, useTransitions, VisualStates.StateCalendarButtonFocused, VisualStates.StateCalendarButtonUnfocused);
}
else
{
VisualStateManager.GoToState(this, VisualStates.StateCalendarButtonUnfocused, useTransitions);
}
base.ChangeVisualState(useTransitions);
}
/// <summary>
/// Creates the automation peer for the DayButton.
/// </summary>
/// <returns></returns>
protected override AutomationPeer OnCreateAutomationPeer()
{
return new CalendarButtonAutomationPeer(this);
}
#endregion Protected Methods
#region Internal Methods
internal void SetContentInternal(string value)
{
SetCurrentValueInternal(ContentControl.ContentProperty, value);
}
#endregion
}
}
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