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using System.Threading.Tasks;
namespace Xamarin.Forms
{
[TypeConverter(typeof(FileImageSourceConverter))]
public sealed class FileImageSource : ImageSource
{
public static readonly BindableProperty FileProperty = BindableProperty.Create("File", typeof(string), typeof(FileImageSource), default(string));
public string File
{
get { return (string)GetValue(FileProperty); }
set { SetValue(FileProperty, value); }
}
public override Task<bool> Cancel()
{
return Task.FromResult(false);
}
public static implicit operator FileImageSource(string file)
{
return (FileImageSource)FromFile(file);
}
public static implicit operator string(FileImageSource file)
{
return file != null ? file.File : null;
}
protected override void OnPropertyChanged(string propertyName = null)
{
if (propertyName == FileProperty.PropertyName)
OnSourceChanged();
base.OnPropertyChanged(propertyName);
}
}
}
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