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Diffstat (limited to 'Xamarin.Forms.Platform.WinRT/Extensions.cs')
| -rw-r--r-- | Xamarin.Forms.Platform.WinRT/Extensions.cs | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.WinRT/Extensions.cs b/Xamarin.Forms.Platform.WinRT/Extensions.cs new file mode 100644 index 00000000..3d4431f1 --- /dev/null +++ b/Xamarin.Forms.Platform.WinRT/Extensions.cs @@ -0,0 +1,46 @@ +using System; +using System.Runtime.CompilerServices; +using Windows.Foundation; +using Windows.UI; +using Windows.UI.Xaml; + +#if WINDOWS_UWP + +namespace Xamarin.Forms.Platform.UWP +#else + +namespace Xamarin.Forms.Platform.WinRT +#endif +{ + internal static class Extensions + { + public static ConfiguredTaskAwaitable<T> DontSync<T>(this IAsyncOperation<T> self) + { + return self.AsTask().ConfigureAwait(false); + } + + public static ConfiguredTaskAwaitable DontSync(this IAsyncAction self) + { + return self.AsTask().ConfigureAwait(false); + } + + public static Windows.UI.Color GetIdealForegroundForBackgroundColor(this Windows.UI.Color backgroundColor) + { + var nThreshold = 105; + int bgLuminance = Convert.ToInt32(backgroundColor.R * 0.2 + backgroundColor.G * 0.7 + backgroundColor.B * 0.1); + + Windows.UI.Color foregroundColor = 255 - bgLuminance < nThreshold ? Colors.Black : Colors.White; + return foregroundColor; + } + + public static void SetBinding(this FrameworkElement self, DependencyProperty property, string path) + { + self.SetBinding(property, new Windows.UI.Xaml.Data.Binding { Path = new PropertyPath(path) }); + } + + public static void SetBinding(this FrameworkElement self, DependencyProperty property, string path, Windows.UI.Xaml.Data.IValueConverter converter) + { + self.SetBinding(property, new Windows.UI.Xaml.Data.Binding { Path = new PropertyPath(path), Converter = converter }); + } + } +}
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