Initial import

1 files changed, 159 insertions, 0 deletions

diff --git a/Xamarin.Forms.Platform.WP8/SearchBarRenderer.cs b/Xamarin.Forms.Platform.WP8/SearchBarRenderer.cs
new file mode 100644
index 00000000..b27851a8
--- /dev/null
+++ b/Xamarin.Forms.Platform.WP8/SearchBarRenderer.cs
@@ -0,0 +1,159 @@
+using System.ComponentModel;
+using System.Windows.Input;
+using System.Windows.Media;
+
+namespace Xamarin.Forms.Platform.WinPhone
+{
+	public class SearchBarRenderer : ViewRenderer<SearchBar, FormsPhoneTextBox>
+	{
+		const string DefaultPlaceholder = "Search";
+		Brush _defaultPlaceholderColorBrush;
+
+		Brush _defaultTextColorBrush;
+
+		bool _fontApplied;
+
+		protected override void OnElementChanged(ElementChangedEventArgs<SearchBar> e)
+		{
+			base.OnElementChanged(e);
+
+			var scope = new InputScope();
+			var name = new InputScopeName();
+			name.NameValue = InputScopeNameValue.Search;
+			scope.Names.Add(name);
+
+			var phoneTextBox = new FormsPhoneTextBox { InputScope = scope };
+
+			phoneTextBox.KeyUp += PhoneTextBoxOnKeyUp;
+
+			phoneTextBox.TextChanged += PhoneTextBoxOnTextChanged;
+
+			SetNativeControl(phoneTextBox);
+
+			UpdateText();
+			UpdatePlaceholder();
+			UpdateAlignment();
+			UpdateFont();
+			UpdatePlaceholderColor();
+			UpdateTextColor();
+		}
+
+		protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
+		{
+			base.OnElementPropertyChanged(sender, e);
+
+			if (e.PropertyName == SearchBar.TextProperty.PropertyName)
+				UpdateText();
+			else if (e.PropertyName == SearchBar.PlaceholderProperty.PropertyName)
+				UpdatePlaceholder();
+			else if (e.PropertyName == SearchBar.FontAttributesProperty.PropertyName)
+				UpdateFont();
+			else if (e.PropertyName == SearchBar.FontFamilyProperty.PropertyName)
+				UpdateFont();
+			else if (e.PropertyName == SearchBar.FontSizeProperty.PropertyName)
+				UpdateFont();
+			else if (e.PropertyName == SearchBar.HorizontalTextAlignmentProperty.PropertyName)
+				UpdateAlignment();
+			else if (e.PropertyName == SearchBar.PlaceholderColorProperty.PropertyName)
+				UpdatePlaceholderColor();
+			else if (e.PropertyName == SearchBar.TextColorProperty.PropertyName)
+				UpdateTextColor();
+		}
+
+		protected override void UpdateBackgroundColor()
+		{
+			Control.Background = Element.BackgroundColor == Color.Default ? (Brush)System.Windows.Application.Current.Resources["PhoneTextBoxBrush"] : Element.BackgroundColor.ToBrush();
+		}
+
+		void PhoneTextBoxOnKeyUp(object sender, KeyEventArgs keyEventArgs)
+		{
+			if (keyEventArgs.Key == Key.Enter)
+				Element.OnSearchButtonPressed();
+		}
+
+		void PhoneTextBoxOnTextChanged(object sender, System.Windows.Controls.TextChangedEventArgs textChangedEventArgs)
+		{
+			((IElementController)Element).SetValueFromRenderer(SearchBar.TextProperty, Control.Text);
+		}
+
+		void UpdateAlignment()
+		{
+			Control.TextAlignment = Element.HorizontalTextAlignment.ToNativeTextAlignment();
+		}
+
+		void UpdateFont()
+		{
+			if (Control == null)
+				return;
+
+			SearchBar searchbar = Element;
+
+			if (searchbar == null)
+				return;
+
+			bool searchbarIsDefault = searchbar.FontFamily == null && searchbar.FontSize == Device.GetNamedSize(NamedSize.Default, typeof(SearchBar), true) && searchbar.FontAttributes == FontAttributes.None;
+
+			if (searchbarIsDefault && !_fontApplied)
+				return;
+
+			if (searchbarIsDefault)
+			{
+				Control.ClearValue(System.Windows.Controls.Control.FontStyleProperty);
+				Control.ClearValue(System.Windows.Controls.Control.FontSizeProperty);
+				Control.ClearValue(System.Windows.Controls.Control.FontFamilyProperty);
+				Control.ClearValue(System.Windows.Controls.Control.FontWeightProperty);
+				Control.ClearValue(System.Windows.Controls.Control.FontStretchProperty);
+			}
+			else
+				Control.ApplyFont(searchbar);
+
+			_fontApplied = true;
+		}
+
+		void UpdatePlaceholder()
+		{
+			Control.Hint = Element.Placeholder ?? DefaultPlaceholder;
+		}
+
+		void UpdatePlaceholderColor()
+		{
+			Color placeholderColor = Element.PlaceholderColor;
+
+			if (placeholderColor.IsDefault)
+			{
+				if (_defaultPlaceholderColorBrush == null)
+					return;
+
+				Control.PlaceholderForegroundBrush = _defaultPlaceholderColorBrush;
+			}
+
+			if (_defaultPlaceholderColorBrush == null)
+				_defaultPlaceholderColorBrush = Control.PlaceholderForegroundBrush;
+
+			Control.PlaceholderForegroundBrush = placeholderColor.ToBrush();
+		}
+
+		void UpdateText()
+		{
+			Control.Text = Element.Text ?? "";
+		}
+
+		void UpdateTextColor()
+		{
+			Color textColor = Element.TextColor;
+
+			if (textColor.IsDefault)
+			{
+				if (_defaultTextColorBrush == null)
+					return;
+
+				Control.Foreground = _defaultTextColorBrush;
+			}
+
+			if (_defaultTextColorBrush == null)
+				_defaultTextColorBrush = Control.Foreground;
+
+			Control.Foreground = textColor.ToBrush();
+		}
+	}
+}
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