mcs/class/referencesource/System.Activities.Presentation/System.Activities.Presentation/System/Activities/Presentation/Base/Core/Internal/PropertyEditing/Selection/CategorySelectionStop.cs

   1 //----------------------------------------------------------------
   2 // Copyright (c) Microsoft Corporation.  All rights reserved.
   3 //----------------------------------------------------------------
   4 namespace System.Activities.Presentation.Internal.PropertyEditing.Selection
   5 {
   6     using System;
   7     using System.Globalization;
   8     using System.Windows;
   9     using System.Activities.Presentation;
  10
  11     using Blend = System.Activities.Presentation.Internal.PropertyEditing.FromExpression.Framework.PropertyInspector;
  12
  13     // <summary>
  14     // Helper class used to manage the selection stop behavior of a given CategoryContainer's basic
  15     // and advanced sections.  It deals with both expanding and collapsing of the specified section
  16     // as well as knowing how to get a SelectionPath leading to its heading.
  17     // </summary>
  18     internal class CategorySelectionStop : ISelectionStop
  19     {
  20
  21         private CiderCategoryContainer _parent;
  22         private DependencyProperty _expansionProperty;
  23         private SelectionPath _selectionPath;
  24         private string _description;
  25
  26         // <summary>
  27         // Creates a new selection stop logic for the specified CiderCategoryContainer.
  28         // </summary>
  29         // <param name="parent">CategoryContainer to wrap around</param>
  30         // <param name="isAdvanced">True if this selection stop wraps around the
  31         // advanced set of properties, false otherwise.</param>
  32         [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2208:InstantiateArgumentExceptionsCorrectly")]
  33         public CategorySelectionStop(CiderCategoryContainer parent, bool isAdvanced)
  34         {
  35
  36             if (parent == null)
  37             {
  38                 throw FxTrace.Exception.ArgumentNull("parent");
  39             }
  40             if (parent.Category == null)
  41             {
  42                 throw FxTrace.Exception.ArgumentNull("parent.Category");
  43             }
  44
  45             _parent = parent;
  46             _expansionProperty = isAdvanced ? Blend.CategoryContainer.AdvancedSectionPinnedProperty : Blend.CategoryContainer.ExpandedProperty;
  47             _selectionPath = CategoryContainerSelectionPathInterpreter.Instance.ConstructSelectionPath(parent.Category.CategoryName, isAdvanced);
  48             _description = isAdvanced ?
  49                 string.Format(
  50                 CultureInfo.CurrentCulture,
  51                 System.Activities.Presentation.Internal.Properties.Resources.PropertyEditing_SelectionStatus_AdvancedCategory,
  52                 parent.Category.CategoryName) :
  53                 string.Format(
  54                 CultureInfo.CurrentCulture,
  55                 System.Activities.Presentation.Internal.Properties.Resources.PropertyEditing_SelectionStatus_Category,
  56                 parent.Category.CategoryName);
  57         }
  58
  59         // <summary>
  60         // Gets or sets a flag indicating whether the basic/advanced section is expanded
  61         // </summary>
  62         public bool IsExpanded
  63         {
  64             get { return (bool)_parent.GetValue(_expansionProperty); }
  65             set { _parent.SetValue(_expansionProperty, value); }
  66         }
  67
  68         // <summary>
  69         // Returns true
  70         // </summary>
  71         public bool IsExpandable
  72         {
  73             get { return true; }
  74         }
  75
  76         // <summary>
  77         // Gets the SelectionPath to the contained CategoryContainer section
  78         // </summary>
  79         public SelectionPath Path
  80         {
  81             get { return _selectionPath; }
  82         }
  83
  84         // <summary>
  85         // Gets a description of the contained category container
  86         // to expose through automation
  87         // </summary>
  88         public string Description
  89         {
  90             get { return _description; }
  91         }
  92     }
  93 }