|
#nullable disable
using System;
using Microsoft.Maui.Controls.Internals;
using Microsoft.Maui.Graphics;
namespace Microsoft.Maui.Controls
{
/// <include file="../../docs/Microsoft.Maui.Controls/DatePicker.xml" path="Type[@FullName='Microsoft.Maui.Controls.DatePicker']/Docs/*" />
public partial class DatePicker : View, IFontElement, ITextElement, IElementConfiguration<DatePicker>, IDatePicker
{
/// <summary>Bindable property for <see cref="Format"/>.</summary>
public static readonly BindableProperty FormatProperty = BindableProperty.Create(nameof(Format), typeof(string), typeof(DatePicker), "d");
/// <summary>Bindable property for <see cref="Date"/>.</summary>
public static readonly BindableProperty DateProperty = BindableProperty.Create(nameof(Date), typeof(DateTime), typeof(DatePicker), default(DateTime), BindingMode.TwoWay,
coerceValue: CoerceDate,
propertyChanged: DatePropertyChanged,
defaultValueCreator: (bindable) => DateTime.Today);
/// <summary>Bindable property for <see cref="MinimumDate"/>.</summary>
public static readonly BindableProperty MinimumDateProperty = BindableProperty.Create(nameof(MinimumDate), typeof(DateTime), typeof(DatePicker), new DateTime(1900, 1, 1),
validateValue: ValidateMinimumDate, coerceValue: CoerceMinimumDate);
/// <summary>Bindable property for <see cref="MaximumDate"/>.</summary>
public static readonly BindableProperty MaximumDateProperty = BindableProperty.Create(nameof(MaximumDate), typeof(DateTime), typeof(DatePicker), new DateTime(2100, 12, 31),
validateValue: ValidateMaximumDate, coerceValue: CoerceMaximumDate);
/// <summary>Bindable property for <see cref="TextColor"/>.</summary>
public static readonly BindableProperty TextColorProperty = TextElement.TextColorProperty;
/// <summary>Bindable property for <see cref="CharacterSpacing"/>.</summary>
public static readonly BindableProperty CharacterSpacingProperty = TextElement.CharacterSpacingProperty;
/// <summary>Bindable property for <see cref="FontFamily"/>.</summary>
public static readonly BindableProperty FontFamilyProperty = FontElement.FontFamilyProperty;
/// <summary>Bindable property for <see cref="FontSize"/>.</summary>
public static readonly BindableProperty FontSizeProperty = FontElement.FontSizeProperty;
/// <summary>Bindable property for <see cref="FontAttributes"/>.</summary>
public static readonly BindableProperty FontAttributesProperty = FontElement.FontAttributesProperty;
/// <summary>Bindable property for <see cref="FontAutoScalingEnabled"/>.</summary>
public static readonly BindableProperty FontAutoScalingEnabledProperty = FontElement.FontAutoScalingEnabledProperty;
readonly Lazy<PlatformConfigurationRegistry<DatePicker>> _platformConfigurationRegistry;
/// <include file="../../docs/Microsoft.Maui.Controls/DatePicker.xml" path="//Member[@MemberName='.ctor']/Docs/*" />
public DatePicker()
{
_platformConfigurationRegistry = new Lazy<PlatformConfigurationRegistry<DatePicker>>(() => new PlatformConfigurationRegistry<DatePicker>(this));
}
/// <include file="../../docs/Microsoft.Maui.Controls/DatePicker.xml" path="//Member[@MemberName='Date']/Docs/*" />
public DateTime Date
{
get { return (DateTime)GetValue(DateProperty); }
set { SetValue(DateProperty, value); }
}
/// <include file="../../docs/Microsoft.Maui.Controls/DatePicker.xml" path="//Member[@MemberName='Format']/Docs/*" />
public string Format
{
get { return (string)GetValue(FormatProperty); }
set { SetValue(FormatProperty, value); }
}
TextTransform ITextElement.TextTransform
{
get => TextTransform.Default;
set { }
}
/// <include file="../../docs/Microsoft.Maui.Controls/DatePicker.xml" path="//Member[@MemberName='MaximumDate']/Docs/*" />
public DateTime MaximumDate
{
get { return (DateTime)GetValue(MaximumDateProperty); }
set { SetValue(MaximumDateProperty, value); }
}
/// <include file="../../docs/Microsoft.Maui.Controls/DatePicker.xml" path="//Member[@MemberName='MinimumDate']/Docs/*" />
public DateTime MinimumDate
{
get { return (DateTime)GetValue(MinimumDateProperty); }
set { SetValue(MinimumDateProperty, value); }
}
/// <include file="../../docs/Microsoft.Maui.Controls/DatePicker.xml" path="//Member[@MemberName='TextColor']/Docs/*" />
public Color TextColor
{
get { return (Color)GetValue(TextElement.TextColorProperty); }
set { SetValue(TextElement.TextColorProperty, value); }
}
/// <include file="../../docs/Microsoft.Maui.Controls/DatePicker.xml" path="//Member[@MemberName='CharacterSpacing']/Docs/*" />
public double CharacterSpacing
{
get { return (double)GetValue(TextElement.CharacterSpacingProperty); }
set { SetValue(TextElement.CharacterSpacingProperty, value); }
}
/// <include file="../../docs/Microsoft.Maui.Controls/DatePicker.xml" path="//Member[@MemberName='FontAttributes']/Docs/*" />
public FontAttributes FontAttributes
{
get { return (FontAttributes)GetValue(FontAttributesProperty); }
set { SetValue(FontAttributesProperty, value); }
}
/// <include file="../../docs/Microsoft.Maui.Controls/DatePicker.xml" path="//Member[@MemberName='FontFamily']/Docs/*" />
public string FontFamily
{
get { return (string)GetValue(FontFamilyProperty); }
set { SetValue(FontFamilyProperty, value); }
}
/// <include file="../../docs/Microsoft.Maui.Controls/DatePicker.xml" path="//Member[@MemberName='FontSize']/Docs/*" />
[System.ComponentModel.TypeConverter(typeof(FontSizeConverter))]
public double FontSize
{
get { return (double)GetValue(FontSizeProperty); }
set { SetValue(FontSizeProperty, value); }
}
public bool FontAutoScalingEnabled
{
get => (bool)GetValue(FontAutoScalingEnabledProperty);
set => SetValue(FontAutoScalingEnabledProperty, value);
}
void IFontElement.OnFontFamilyChanged(string oldValue, string newValue) =>
HandleFontChanged();
void IFontElement.OnFontSizeChanged(double oldValue, double newValue) =>
HandleFontChanged();
double IFontElement.FontSizeDefaultValueCreator() =>
this.GetDefaultFontSize();
void IFontElement.OnFontAttributesChanged(FontAttributes oldValue, FontAttributes newValue) =>
HandleFontChanged();
void IFontElement.OnFontAutoScalingEnabledChanged(bool oldValue, bool newValue) =>
HandleFontChanged();
void HandleFontChanged()
{
Handler?.UpdateValue(nameof(ITextStyle.Font));
InvalidateMeasureInternal(InvalidationTrigger.MeasureChanged);
}
void ITextElement.OnTextTransformChanged(TextTransform oldValue, TextTransform newValue)
{
}
/// <include file="../../docs/Microsoft.Maui.Controls/DatePicker.xml" path="//Member[@MemberName='UpdateFormsText']/Docs/*" />
public virtual string UpdateFormsText(string source, TextTransform textTransform)
=> TextTransformUtilites.GetTransformedText(source, textTransform);
public event EventHandler<DateChangedEventArgs> DateSelected;
static object CoerceDate(BindableObject bindable, object value)
{
var picker = (DatePicker)bindable;
DateTime dateValue = ((DateTime)value).Date;
if (dateValue > picker.MaximumDate)
dateValue = picker.MaximumDate;
if (dateValue < picker.MinimumDate)
dateValue = picker.MinimumDate;
return dateValue;
}
static object CoerceMaximumDate(BindableObject bindable, object value)
{
DateTime dateValue = ((DateTime)value).Date;
var picker = (DatePicker)bindable;
if (picker.Date > dateValue)
picker.Date = dateValue;
return dateValue;
}
static object CoerceMinimumDate(BindableObject bindable, object value)
{
DateTime dateValue = ((DateTime)value).Date;
var picker = (DatePicker)bindable;
if (picker.Date < dateValue)
picker.Date = dateValue;
return dateValue;
}
static void DatePropertyChanged(BindableObject bindable, object oldValue, object newValue)
{
var datePicker = (DatePicker)bindable;
EventHandler<DateChangedEventArgs> selected = datePicker.DateSelected;
if (selected != null)
selected(datePicker, new DateChangedEventArgs((DateTime)oldValue, (DateTime)newValue));
}
static bool ValidateMaximumDate(BindableObject bindable, object value)
{
return ((DateTime)value).Date >= ((DatePicker)bindable).MinimumDate.Date;
}
static bool ValidateMinimumDate(BindableObject bindable, object value)
{
return ((DateTime)value).Date <= ((DatePicker)bindable).MaximumDate.Date;
}
/// <inheritdoc/>
public IPlatformElementConfiguration<T, DatePicker> On<T>() where T : IConfigPlatform
{
return _platformConfigurationRegistry.Value.On<T>();
}
void ITextElement.OnTextColorPropertyChanged(Color oldValue, Color newValue)
{
}
void ITextElement.OnCharacterSpacingPropertyChanged(double oldValue, double newValue)
{
InvalidateMeasure();
}
Font ITextStyle.Font => this.ToFont();
DateTime IDatePicker.Date
{
get => Date;
set => SetValue(DateProperty, value, SetterSpecificity.FromHandler);
}
string IDatePicker.Format
{
get => Format;
set => SetValue(FormatProperty, value, SetterSpecificity.FromHandler);
}
}
}
|