using System.ComponentModel; using System.Windows; using System.Windows.Controls; using System.Windows.Media; namespace Xamarin.Forms.Platform.WinPhone { public class EditorRenderer : ViewRenderer { bool _fontApplied; protected override void OnElementChanged(ElementChangedEventArgs e) { base.OnElementChanged(e); var textBox = new TextBox { VerticalScrollBarVisibility = ScrollBarVisibility.Visible, TextWrapping = TextWrapping.Wrap, AcceptsReturn = true }; SetNativeControl(textBox); UpdateText(); UpdateInputScope(); UpdateTextColor(); Control.LostFocus += (sender, args) => Element.SendCompleted(); textBox.TextChanged += TextBoxOnTextChanged; } protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e) { base.OnElementPropertyChanged(sender, e); if (e.PropertyName == Editor.TextProperty.PropertyName) UpdateText(); else if (e.PropertyName == InputView.KeyboardProperty.PropertyName) UpdateInputScope(); else if (e.PropertyName == Editor.TextColorProperty.PropertyName) UpdateTextColor(); else if (e.PropertyName == Editor.FontAttributesProperty.PropertyName) UpdateFont(); else if (e.PropertyName == Editor.FontFamilyProperty.PropertyName) UpdateFont(); else if (e.PropertyName == Editor.FontSizeProperty.PropertyName) UpdateFont(); } protected override void UpdateBackgroundColor() { Control.Background = Element.BackgroundColor == Color.Default ? (Brush)System.Windows.Application.Current.Resources["PhoneTextBoxBrush"] : Element.BackgroundColor.ToBrush(); } void TextBoxOnTextChanged(object sender, System.Windows.Controls.TextChangedEventArgs textChangedEventArgs) { ((IElementController)Element).SetValueFromRenderer(Editor.TextProperty, Control.Text); } void UpdateFont() { if (Control == null) return; Editor editor = Element; bool editorIsDefault = editor.FontFamily == null && editor.FontSize == Device.GetNamedSize(NamedSize.Default, typeof(Editor), true) && editor.FontAttributes == FontAttributes.None; if (editor == null || (editorIsDefault && !_fontApplied)) return; if (editorIsDefault) { 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(editor); _fontApplied = true; } void UpdateInputScope() { Control.InputScope = Element.Keyboard.ToInputScope(); } void UpdateText() { string newText = Element.Text ?? ""; if (Control.Text == newText) return; Control.Text = newText; Control.SelectionStart = Control.Text.Length; } void UpdateTextColor() { Color textColor = Element.TextColor; if (textColor.IsDefault || !Element.IsEnabled) Control.ClearValue(System.Windows.Controls.Control.ForegroundProperty); else Control.Foreground = textColor.ToBrush(); } } }