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using System;
using System.Windows.Input;
namespace Xamarin.Forms
{
public class TextCell : Cell
{
public static readonly BindableProperty CommandProperty = BindableProperty.Create("Command", typeof(ICommand), typeof(TextCell), default(ICommand),
propertyChanging: (bindable, oldvalue, newvalue) =>
{
var textCell = (TextCell)bindable;
var oldcommand = (ICommand)oldvalue;
if (oldcommand != null)
oldcommand.CanExecuteChanged -= textCell.OnCommandCanExecuteChanged;
}, propertyChanged: (bindable, oldvalue, newvalue) =>
{
var textCell = (TextCell)bindable;
var newcommand = (ICommand)newvalue;
if (newcommand != null)
{
textCell.IsEnabled = newcommand.CanExecute(textCell.CommandParameter);
newcommand.CanExecuteChanged += textCell.OnCommandCanExecuteChanged;
}
});
public static readonly BindableProperty CommandParameterProperty = BindableProperty.Create("CommandParameter", typeof(object), typeof(TextCell), default(object),
propertyChanged: (bindable, oldvalue, newvalue) =>
{
var textCell = (TextCell)bindable;
if (textCell.Command != null)
{
textCell.IsEnabled = textCell.Command.CanExecute(newvalue);
}
});
public static readonly BindableProperty TextProperty = BindableProperty.Create("Text", typeof(string), typeof(TextCell), default(string));
public static readonly BindableProperty DetailProperty = BindableProperty.Create("Detail", typeof(string), typeof(TextCell), default(string));
public static readonly BindableProperty TextColorProperty = BindableProperty.Create("TextColor", typeof(Color), typeof(TextCell), Color.Default);
public static readonly BindableProperty DetailColorProperty = BindableProperty.Create("DetailColor", typeof(Color), typeof(TextCell), Color.Default);
public ICommand Command
{
get { return (ICommand)GetValue(CommandProperty); }
set { SetValue(CommandProperty, value); }
}
public object CommandParameter
{
get { return GetValue(CommandParameterProperty); }
set { SetValue(CommandParameterProperty, value); }
}
public string Detail
{
get { return (string)GetValue(DetailProperty); }
set { SetValue(DetailProperty, value); }
}
public Color DetailColor
{
get { return (Color)GetValue(DetailColorProperty); }
set { SetValue(DetailColorProperty, value); }
}
public string Text
{
get { return (string)GetValue(TextProperty); }
set { SetValue(TextProperty, value); }
}
public Color TextColor
{
get { return (Color)GetValue(TextColorProperty); }
set { SetValue(TextColorProperty, value); }
}
protected internal override void OnTapped()
{
base.OnTapped();
ICommand cmd = Command;
if (cmd != null)
cmd.Execute(CommandParameter);
}
void OnCommandCanExecuteChanged(object sender, EventArgs eventArgs)
{
IsEnabled = Command.CanExecute(CommandParameter);
}
}
}
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