Apply TizenSpecifics only if available

- Nothing to happen if Xamarin.Forms.dll doesn't have Xamarin.Forms.PlatformConfiguration.TizenSpecific.

Change-Id: I4586178a0eb97610c88bfb272e26e3e0a43b5169

8 files changed, 46 insertions, 19 deletions

diff --git a/Xamarin.Forms.Platform.Tizen/Renderers/EntryRenderer.cs b/Xamarin.Forms.Platform.Tizen/Renderers/EntryRenderer.cs
index ba6a15a1..f269869e 100644
--- a/Xamarin.Forms.Platform.Tizen/Renderers/EntryRenderer.cs
+++ b/Xamarin.Forms.Platform.Tizen/Renderers/EntryRenderer.cs
@@ -17,7 +17,10 @@ namespace Xamarin.Forms.Platform.Tizen
 			RegisterPropertyHandler(Entry.KeyboardProperty, UpdateKeyboard);
 			RegisterPropertyHandler(Entry.PlaceholderProperty, UpdatePlaceholder);
 			RegisterPropertyHandler(Entry.PlaceholderColorProperty, UpdatePlaceholderColor);
-			RegisterPropertyHandler(Specific.FontWeightProperty, UpdateFontWeight);
+			if(TizenPlatformServices.AppDomain.IsTizenSpecificAvailable)
+			{
+				RegisterPropertyHandler("FontWeight", UpdateFontWeight);
+			}
 		}
 
 		protected override void OnElementChanged(ElementChangedEventArgs<Entry> e)
diff --git a/Xamarin.Forms.Platform.Tizen/Renderers/ImageRenderer.cs b/Xamarin.Forms.Platform.Tizen/Renderers/ImageRenderer.cs
index f402178b..63fb327a 100644
--- a/Xamarin.Forms.Platform.Tizen/Renderers/ImageRenderer.cs
+++ b/Xamarin.Forms.Platform.Tizen/Renderers/ImageRenderer.cs
@@ -43,7 +43,7 @@ namespace Xamarin.Forms.Platform.Tizen
 			{
 				UpdateIsOpaque();
 			}
-			else if (e.PropertyName == Specific.BlendColorProperty.PropertyName)
+			else if (TizenPlatformServices.AppDomain.IsTizenSpecificAvailable && e.PropertyName == "BlendColor")
 			{
 				UpdateBlendColor();
 			}
@@ -72,7 +72,9 @@ namespace Xamarin.Forms.Platform.Tizen
 		protected virtual void UpdateAfterLoading()
 		{
 			UpdateIsOpaque();
-			UpdateBlendColor();
+			{
+				UpdateBlendColor();
+			}
 		}
 
 		void UpdateAspect()
diff --git a/Xamarin.Forms.Platform.Tizen/Renderers/LabelRenderer.cs b/Xamarin.Forms.Platform.Tizen/Renderers/LabelRenderer.cs
index d1d9c96d..876e7f8c 100644
--- a/Xamarin.Forms.Platform.Tizen/Renderers/LabelRenderer.cs
+++ b/Xamarin.Forms.Platform.Tizen/Renderers/LabelRenderer.cs
@@ -17,7 +17,10 @@ namespace Xamarin.Forms.Platform.Tizen
 			RegisterPropertyHandler(Label.HorizontalTextAlignmentProperty, UpdateTextAlignment);
 			RegisterPropertyHandler(Label.VerticalTextAlignmentProperty, UpdateTextAlignment);
 			RegisterPropertyHandler(Label.FormattedTextProperty, UpdateFormattedText);
-			RegisterPropertyHandler(Specific.FontWeightProperty, UpdateFontWeight);
+			if (TizenPlatformServices.AppDomain.IsTizenSpecificAvailable)
+			{
+				RegisterPropertyHandler("FontWeight", UpdateFontWeight);
+			}
 		}
 
 		protected override void OnElementChanged(ElementChangedEventArgs<Label> e)
diff --git a/Xamarin.Forms.Platform.Tizen/Renderers/NavigationPageRenderer.cs b/Xamarin.Forms.Platform.Tizen/Renderers/NavigationPageRenderer.cs
index d43fea8e..edcba08f 100644
--- a/Xamarin.Forms.Platform.Tizen/Renderers/NavigationPageRenderer.cs
+++ b/Xamarin.Forms.Platform.Tizen/Renderers/NavigationPageRenderer.cs
@@ -127,8 +127,9 @@ namespace Xamarin.Forms.Platform.Tizen
 			// Tizen does not support 'Tint', but only 'BarBackgroundColor'
 			else if (e.PropertyName == NavigationPage.BarBackgroundColorProperty.PropertyName)
 				UpdateBarBackgroundColor(CurrentNaviItem);
-			else if (e.PropertyName == PlatformConfiguration.TizenSpecific.NavigationPage.HasBreadCrumbsBarProperty.PropertyName)
+			else if (TizenPlatformServices.AppDomain.IsTizenSpecificAvailable && e.PropertyName == "HasBreadCrumbsBar")
 				UpdateBreadCrumbsBar(CurrentNaviItem);
+
 		}
 
 		void PageCollectionChangedHandler(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
@@ -156,7 +157,7 @@ namespace Xamarin.Forms.Platform.Tizen
 				UpdateHasBackButton(sender as Page);
 			else if (e.PropertyName == Page.TitleProperty.PropertyName)
 				UpdateTitle(sender as Page);
-			else if (e.PropertyName == PlatformConfiguration.TizenSpecific.Page.BreadCrumbProperty.PropertyName)
+			else if (TizenPlatformServices.AppDomain.IsTizenSpecificAvailable && e.PropertyName == "BreadCrumb")
 				UpdateBreadCrumbsBar(GetNaviItemForPage(sender as Page));
 		}
 
@@ -171,7 +172,8 @@ namespace Xamarin.Forms.Platform.Tizen
 			item.TitleBarVisible = (bool)page.GetValue(NavigationPage.HasNavigationBarProperty);
 			UpdateToolbarItem(page, item);
 			UpdateBarBackgroundColor(item);
-			UpdateBreadCrumbsBar(item);
+			if(TizenPlatformServices.AppDomain.IsTizenSpecificAvailable)
+				UpdateBreadCrumbsBar(item);
 		}
 
 		void UpdateToolbarItem(Page page, NaviItem item = null)
diff --git a/Xamarin.Forms.Platform.Tizen/Renderers/ProgressBarRenderer.cs b/Xamarin.Forms.Platform.Tizen/Renderers/ProgressBarRenderer.cs
index d7471b43..5c7a4231 100755..100644
--- a/Xamarin.Forms.Platform.Tizen/Renderers/ProgressBarRenderer.cs
+++ b/Xamarin.Forms.Platform.Tizen/Renderers/ProgressBarRenderer.cs
@@ -47,7 +47,7 @@ namespace Xamarin.Forms.Platform.Tizen
 			{
 				UpdateProgress();
 			}
-			else if (e.PropertyName == Specific.ProgressBarPulsingStatusProperty.PropertyName)
+			else if (TizenPlatformServices.AppDomain.IsTizenSpecificAvailable && e.PropertyName == "ProgressBarPulsingStatus")
 			{
 				UpdatePulsingStatus();
 			}
@@ -63,7 +63,10 @@ namespace Xamarin.Forms.Platform.Tizen
 		void UpdateAll()
 		{
 			UpdateProgress();
-			UpdatePulsingStatus();
+			if (TizenPlatformServices.AppDomain.IsTizenSpecificAvailable)
+			{
+				UpdatePulsingStatus();
+			}
 		}
 
 		void UpdateProgress()
diff --git a/Xamarin.Forms.Platform.Tizen/Renderers/TabbedPageRenderer.cs b/Xamarin.Forms.Platform.Tizen/Renderers/TabbedPageRenderer.cs
index 34e0235e..34e0235e 100755..100644
--- a/Xamarin.Forms.Platform.Tizen/Renderers/TabbedPageRenderer.cs
+++ b/Xamarin.Forms.Platform.Tizen/Renderers/TabbedPageRenderer.cs
diff --git a/Xamarin.Forms.Platform.Tizen/Renderers/VisualElementRenderer.cs b/Xamarin.Forms.Platform.Tizen/Renderers/VisualElementRenderer.cs
index a3282a3f..f40ece7e 100644
--- a/Xamarin.Forms.Platform.Tizen/Renderers/VisualElementRenderer.cs
+++ b/Xamarin.Forms.Platform.Tizen/Renderers/VisualElementRenderer.cs
@@ -56,16 +56,21 @@ namespace Xamarin.Forms.Platform.Tizen
 			RegisterPropertyHandler(VisualElement.IsEnabledProperty, UpdateIsEnabled);
 			RegisterPropertyHandler(VisualElement.InputTransparentProperty, UpdateInputTransparent);
 			RegisterPropertyHandler(VisualElement.BackgroundColorProperty, UpdateBackgroundColor);
-			RegisterPropertyHandler(Specific.StyleProperty, UpdateThemeStyle);
-			RegisterPropertyHandler(Specific.IsFocusAllowedProperty, UpdateFocusAllowed);
-			RegisterPropertyHandler(Specific.NextFocusDirectionProperty, UpdateFocusDirection);
-			RegisterPropertyHandler(Specific.NextFocusUpViewProperty, UpdateFocusUpView);
-			RegisterPropertyHandler(Specific.NextFocusDownViewProperty, UpdateFocusDownView);
-			RegisterPropertyHandler(Specific.NextFocusLeftViewProperty, UpdateFocusLeftView);
-			RegisterPropertyHandler(Specific.NextFocusRightViewProperty, UpdateFocusRightView);
-			RegisterPropertyHandler(Specific.NextFocusBackViewProperty, UpdateFocusBackView);
-			RegisterPropertyHandler(Specific.NextFocusForwardViewProperty, UpdateFocusForwardView);
-			RegisterPropertyHandler(Specific.ToolTipProperty, UpdateToolTip);
+
+			// Use TizenSpecific APIs only if available
+			if (TizenPlatformServices.AppDomain.IsTizenSpecificAvailable)
+			{
+				RegisterPropertyHandler("ThemeStyle", UpdateThemeStyle);
+				RegisterPropertyHandler("IsFocusAllowed", UpdateFocusAllowed);
+				RegisterPropertyHandler("NextFocusDirection", UpdateFocusDirection);
+				RegisterPropertyHandler("NextFocusUpView", UpdateFocusUpView);
+				RegisterPropertyHandler("NextFocusDownView", UpdateFocusDownView);
+				RegisterPropertyHandler("NextFocusLeftView", UpdateFocusLeftView);
+				RegisterPropertyHandler("NextFocusRightView", UpdateFocusRightView);
+				RegisterPropertyHandler("NextFocusBackView", UpdateFocusBackView);
+				RegisterPropertyHandler("NextFocusForwardView", UpdateFocusForwardView);
+				RegisterPropertyHandler("ToolTip", UpdateToolTip);
+			}
 
 			RegisterPropertyHandler(VisualElement.AnchorXProperty, ApplyTransformation);
 			RegisterPropertyHandler(VisualElement.AnchorYProperty, ApplyTransformation);
diff --git a/Xamarin.Forms.Platform.Tizen/TizenPlatformServices.cs b/Xamarin.Forms.Platform.Tizen/TizenPlatformServices.cs
index 3be1c95a..449b0938 100644
--- a/Xamarin.Forms.Platform.Tizen/TizenPlatformServices.cs
+++ b/Xamarin.Forms.Platform.Tizen/TizenPlatformServices.cs
@@ -184,6 +184,8 @@ namespace Xamarin.Forms.Platform.Tizen
 
 			List<Assembly> _assemblies;
 
+			public static bool IsTizenSpecificAvailable { get; private set; }
+
 			static AppDomain()
 			{
 				CurrentDomain = new AppDomain();
@@ -212,6 +214,13 @@ namespace Xamarin.Forms.Platform.Tizen
 						{
 							Assembly refAsm = Assembly.Load(refName);
 							RegisterAssemblyRecursively(refAsm);
+							if (refName.Name == "Xamarin.Forms.Core")
+							{
+								if (refAsm.GetType("Xamarin.Forms.PlatformConfiguration.TizenSpecific.VisualElement") != null)
+								{
+									IsTizenSpecificAvailable = true;
+								}
+							}
 						}
 						catch
 						{