[Tizen] Supports Custom/Embedded and System fonts

GitInfo.txt

@@ -1 +1 @@
-4.5.0
+4.6.0

Xamarin.Forms.Platform.Android/Renderers/SearchBarRenderer.cs

@@ -61,7 +61,7 @@ public override SizeRequest GetDesiredSize(int widthConstraint, int heightConstr
 
 		protected override SearchView CreateNativeControl()
 		{
-			var context = (Context as ContextThemeWrapper).BaseContext ?? Context;
+			var context = (Context as ContextThemeWrapper)?.BaseContext ?? Context;
 			return new SearchView(context);
 		}
 

Xamarin.Forms.Platform.Tizen/EmbeddedFontLoader.cs

@@ -0,0 +1,41 @@
+using System;
+using System.IO;
+using ElmSharp;
+using TApplication = Tizen.Applications.Application;
+
+namespace Xamarin.Forms.Platform.Tizen
+{
+	public class EmbeddedFontLoader : IEmbeddedFontLoader, IRegisterable
+	{
+		const string _fontCacheFolderName = "fonts";
+
+		public DirectoryInfo FontCacheDirectory { get; private set; }
+
+		public EmbeddedFontLoader()
+		{
+			FontCacheDirectory = Directory.CreateDirectory(Path.Combine(TApplication.Current.DirectoryInfo.Data, _fontCacheFolderName));
+			Utility.AppendGlobalFontPath(FontCacheDirectory.FullName);
+		}
+
+		public (bool success, string filePath) LoadFont(EmbeddedFont font)
+		{
+			var filePath = Path.Combine(FontCacheDirectory.FullName, font.FontName);
+			if (File.Exists(filePath))
+				return (true, filePath);
+			try
+			{
+				using (var fileStream = File.Create(filePath))
+				{
+					font.ResourceStream.CopyTo(fileStream);
+				}
+				return (true, filePath);
+			}
+			catch (Exception ex)
+			{
+				Log.Error(ex.Message);
+				File.Delete(filePath);
+			}
+			return (false, null);
+		}
+	}
+}

Xamarin.Forms.Platform.Tizen/Extensions/FontExtensions.cs

@@ -0,0 +1,50 @@
+using Xamarin.Forms.Core;
+using Xamarin.Forms.Internals;
+
+namespace Xamarin.Forms.Platform.Tizen
+{
+	public static class FontExtensions
+	{
+		public static string ToNativeFontFamily(this string self)
+		{
+			if (string.IsNullOrEmpty(self))
+				return null;
+
+			var cleansedFont = CleanseFontName(self);
+			int index = cleansedFont.LastIndexOf('-');
+			if (index != -1)
+			{
+				string font = cleansedFont.Substring(0, index);
+				string style = cleansedFont.Substring(index+1);
+				return $"{font}:style={style}";
+			}
+			else
+			{
+				return cleansedFont;
+			}
+		}
+
+		static string CleanseFontName(string fontName)
+		{
+			var fontFile = FontFile.FromString(fontName);
+
+			if (!string.IsNullOrWhiteSpace(fontFile.Extension))
+			{
+				var (hasFont, _) = FontRegistrar.HasFont(fontFile.FileNameWithExtension());
+				if (hasFont)
+					return fontFile.PostScriptName;
+			}
+			else
+			{
+				foreach (var ext in FontFile.Extensions)
+				{
+					var formated = fontFile.FileNameWithExtension(ext);
+					var (hasFont, filePath) = FontRegistrar.HasFont(formated);
+					if (hasFont)
+						return fontFile.PostScriptName;
+				}
+			}
+			return fontFile.PostScriptName;
+		}
+	}
+}

Xamarin.Forms.Platform.Tizen/Forms.cs

@@ -346,6 +346,7 @@ static void SetupInit(CoreApplication application, InitializationOptions options
 
 				Elementary.Initialize();
 				Elementary.ThemeOverlay();
+				Utility.AppendGlobalFontPath(@"/usr/share/fonts");
 			}
 
 			Device.PlatformServices = new TizenPlatformServices();
@@ -394,7 +395,8 @@ static void SetupInit(CoreApplication application, InitializationOptions options
 										typeof(ExportRendererAttribute),
 										typeof(ExportImageSourceHandlerAttribute),
 										typeof(ExportCellAttribute),
-										typeof(ExportHandlerAttribute)
+										typeof(ExportHandlerAttribute),
+										typeof(ExportFontAttribute)
 									});
 								}
 						}
@@ -405,7 +407,8 @@ static void SetupInit(CoreApplication application, InitializationOptions options
 								typeof(ExportRendererAttribute),
 								typeof(ExportImageSourceHandlerAttribute),
 								typeof(ExportCellAttribute),
-								typeof(ExportHandlerAttribute)
+								typeof(ExportHandlerAttribute),
+								typeof(ExportFontAttribute)
 							});
 						}
 					}
@@ -439,7 +442,8 @@ static void SetupInit(CoreApplication application, InitializationOptions options
 						typeof(ExportRendererAttribute),
 						typeof(ExportImageSourceHandlerAttribute),
 						typeof(ExportCellAttribute),
-						typeof(ExportHandlerAttribute)
+						typeof(ExportHandlerAttribute),
+						typeof(ExportFontAttribute)
 					});
 				}
 			}

Xamarin.Forms.Platform.Tizen/Properties/AssemblyInfo.cs

@@ -52,6 +52,8 @@
 [assembly: ExportCell(typeof(EntryCell), typeof(EntryCellRenderer))]
 [assembly: ExportCell(typeof(ViewCell), typeof(ViewCellRenderer))]
 
+[assembly: ExportRenderer(typeof(EmbeddedFont), typeof(EmbeddedFontLoader))]
+
 [assembly: ExportHandler(typeof(TapGestureRecognizer), typeof(TapGestureHandler))]
 [assembly: ExportHandler(typeof(PinchGestureRecognizer), typeof(PinchGestureHandler))]
 [assembly: ExportHandler(typeof(PanGestureRecognizer), typeof(PanGestureHandler))]

Xamarin.Forms.Platform.Tizen/Renderers/ButtonRenderer.cs

@@ -121,7 +121,7 @@ void UpdateFontFamily()
 		{
 			if (Control is IButton ib)
 			{
-				ib.FontFamily = Element.FontFamily;
+				ib.FontFamily = Element.FontFamily.ToNativeFontFamily();
 			}			
 		}
 

Xamarin.Forms.Platform.Tizen/Renderers/DatePickerRenderer.cs

@@ -118,7 +118,7 @@ void UpdateFontSize()
 
 		void UpdateFontFamily()
 		{
-			Control.FontFamily = Element.FontFamily;
+			Control.FontFamily = Element.FontFamily.ToNativeFontFamily();
 		}
 
 		void UpdateFontAttributes()

Xamarin.Forms.Platform.Tizen/Renderers/EditorRenderer.cs

@@ -111,7 +111,7 @@ void UpdateFontSize()
 
 		void UpdateFontFamily()
 		{
-			Control.FontFamily = Element.FontFamily;
+			Control.FontFamily = Element.FontFamily.ToNativeFontFamily();
 		}
 
 		void UpdateFontAttributes()

Xamarin.Forms.Platform.Tizen/Renderers/EntryRenderer.cs

@@ -145,7 +145,7 @@ void UpdateFontFamily()
 		{
 			if (Control is IEntry ie)
 			{
-				ie.FontFamily = Element.FontFamily;
+				ie.FontFamily = Element.FontFamily.ToNativeFontFamily();
 			}
 		}
 

Xamarin.Forms.Platform.Tizen/Renderers/LabelRenderer.cs

@@ -1,3 +1,5 @@
+using Xamarin.Forms.Core;
+using Xamarin.Forms.Internals;
 using Xamarin.Forms.Platform.Tizen.Native;
 using Specific = Xamarin.Forms.PlatformConfiguration.TizenSpecific.Label;
 
@@ -106,7 +108,7 @@ void UpdateFontProperties()
 
 			Control.FontSize = Element.FontSize;
 			Control.FontAttributes = Element.FontAttributes;
-			Control.FontFamily = Element.FontFamily;
+			Control.FontFamily = Element.FontFamily.ToNativeFontFamily();
 
 			Control.BatchCommit();
 		}

Xamarin.Forms.Platform.Tizen/Renderers/SearchBarRenderer.cs

@@ -93,7 +93,7 @@ void FontAttributesPropertyHandler()
 		/// </summary>
 		void FontFamilyPropertyHandler()
 		{
-			Control.FontFamily = Element.FontFamily;
+			Control.FontFamily = Element.FontFamily.ToNativeFontFamily();
 		}
 
 		/// <summary>

Xamarin.Forms.Platform.Tizen/Renderers/TimePickerRenderer.cs

@@ -127,7 +127,7 @@ void UpdateFontSize()
 
 		void UpdateFontFamily()
 		{
-			Control.FontFamily = Element.FontFamily;
+			Control.FontFamily = Element.FontFamily.ToNativeFontFamily();
 		}
 
 		void UpdateFontAttributes()

Xamarin.Forms.Platform.Tizen/StaticRegistrar.cs

@@ -66,7 +66,7 @@ static StaticRegistrar()
 
 		public static void RegisterHandlers(Dictionary<Type, Func<IRegisterable>> customHandlers)
 		{
-			////Renderers
+			//Renderers
 			Registered.Register(typeof(Layout), () => new LayoutRenderer());
 			Registered.Register(typeof(ScrollView), () => new ScrollViewRenderer());
 			Registered.Register(typeof(CarouselPage), () => new CarouselPageRenderer());
@@ -102,18 +102,21 @@ public static void RegisterHandlers(Dictionary<Type, Func<IRegisterable>> custom
 			Registered.Register(typeof(SwipeView), () => new SwipeViewRenderer());
 			Registered.Register(typeof(RefreshView), () => new RefreshViewRenderer());
 
-			////ImageSourceHandlers
+			//ImageSourceHandlers
 			Registered.Register(typeof(FileImageSource), () => new FileImageSourceHandler());
 			Registered.Register(typeof(StreamImageSource), () => new StreamImageSourceHandler());
 			Registered.Register(typeof(UriImageSource), () => new UriImageSourceHandler());
 
-			////Cell Renderers
+			//Cell Renderers
 			Registered.Register(typeof(TextCell), () => new TextCellRenderer());
 			Registered.Register(typeof(ImageCell), () => new ImageCellRenderer());
 			Registered.Register(typeof(SwitchCell), () => new SwitchCellRenderer());
 			Registered.Register(typeof(EntryCell), () => new EntryCellRenderer());
 			Registered.Register(typeof(ViewCell), () => new ViewCellRenderer());
 
+			//Font Loaders
+			Registered.Register(typeof(EmbeddedFont), () => new EmbeddedFontLoader());
+
 			//Dependencies
 			DependencyService.Register<ISystemResourcesProvider, ResourcesProvider>();
 			DependencyService.Register<IDeserializer, Deserializer>();