mcs/class/referencesource/System.Activities.Presentation/System.Activities.Presentation/System/Activities/Presentation/Annotations/FloatingAnnotationView.xaml.cs

   1 //----------------------------------------------------------------
   2 // <copyright company="Microsoft Corporation">
   3 //     Copyright (c) Microsoft Corporation.  All rights reserved.
   4 // </copyright>
   5 //----------------------------------------------------------------
   6
   7 namespace System.Activities.Presentation.Annotations
   8 {
   9     using System.Activities.Presentation.Model;
  10     using System.ComponentModel;
  11     using System.Windows;
  12     using System.Windows.Controls;
  13     using System.Windows.Data;
  14     using System.Windows.Input;
  15
  16     internal sealed partial class FloatingAnnotationView : UserControl, IFloatingAnnotation
  17     {
  18         public static readonly DependencyProperty ModelItemProperty = DependencyProperty.Register("ModelItem", typeof(ModelItem), typeof(FloatingAnnotationView));
  19
  20         public static readonly DependencyProperty IsReadOnlyProperty = DependencyProperty.Register("IsReadOnly", typeof(bool), typeof(FloatingAnnotationView));
  21
  22         private bool focusOnLoad;
  23
  24         public FloatingAnnotationView()
  25         {
  26             this.InitializeComponent();
  27             this.Loaded += new RoutedEventHandler(this.OnFloatingAnnotationViewLoaded);
  28         }
  29
  30         public event Action DockButtonClicked;
  31
  32         public event EventHandler IsMouseOverChanged
  33         {
  34             add
  35             {
  36                 DependencyPropertyDescriptor descriptor = DependencyPropertyDescriptor.FromProperty(UIElement.IsMouseOverProperty, typeof(UIElement));
  37                 descriptor.AddValueChanged(this, value);
  38             }
  39
  40             remove
  41             {
  42                 DependencyPropertyDescriptor descriptor = DependencyPropertyDescriptor.FromProperty(UIElement.IsMouseOverProperty, typeof(UIElement));
  43                 descriptor.RemoveValueChanged(this, value);
  44             }
  45         }
  46
  47         public bool IsReadOnly
  48         {
  49             get { return (bool)GetValue(IsReadOnlyProperty); }
  50             set { SetValue(IsReadOnlyProperty, value); }
  51         }
  52
  53         public ModelItem ModelItem
  54         {
  55             get { return (ModelItem)GetValue(ModelItemProperty); }
  56             set { SetValue(ModelItemProperty, value); }
  57         }
  58
  59         public void FocusOnContent()
  60         {
  61             if (this.annotationTextBox.Focus() != true)
  62             {
  63                 this.focusOnLoad = true;
  64             }
  65         }
  66
  67         public void UpdateModelItem()
  68         {
  69             BindingExpression be = this.annotationTextBox.GetBindingExpression(TextBox.TextProperty);
  70             be.UpdateSource();
  71         }
  72
  73         protected override void OnContextMenuOpening(ContextMenuEventArgs e)
  74         {
  75             e.Handled = true;
  76         }
  77
  78         private void OnFloatingAnnotationViewLoaded(object sender, RoutedEventArgs e)
  79         {
  80             if (this.focusOnLoad)
  81             {
  82                 Keyboard.Focus(this.annotationTextBox);
  83                 this.focusOnLoad = false;
  84             }
  85         }
  86
  87         private void OnDockButtonClicked(object sender, RoutedEventArgs e)
  88         {
  89             if (this.DockButtonClicked != null)
  90             {
  91                 this.DockButtonClicked();
  92             }
  93         }
  94     }
  95 }