mcs/class/referencesource/System.Activities.Presentation/System.Activities.Presentation/System/Activities/Presentation/Base/Core/Internal/PropertyEditing/FromExpression/Framework/PropertyInspector/PropertyContainerPopupHelper.cs

   1 // -------------------------------------------------------------------
   2 // Copyright (c) Microsoft Corporation. All Rights Reserved.
   3 // -------------------------------------------------------------------
   4 //From \\authoring\Sparkle\Source\1.0.1083.0\Common\Source\Framework\Properties
   5 namespace System.Activities.Presentation.Internal.PropertyEditing.FromExpression.Framework.PropertyInspector
   6 {
   7     using System;
   8     using System.Collections.Generic;
   9     using System.Text;
  10     using System.Windows;
  11     using System.Windows.Controls.Primitives;
  12     using System.Windows.Input;
  13     using System.Windows.Media;
  14     using System.Activities.Presentation.PropertyEditing;
  15     using System.Activities.Presentation.Internal.PropertyEditing.FromExpression.Framework.Controls;
  16
  17     // <summary>
  18     // Acrylic needs a way of knowing when we begin and end extended edit mode,
  19     // so this class fires commands when those two events take place.
  20     // </summary>
  21     internal class PropertyContainerPopup : WorkaroundPopup
  22     {
  23         // these events allow Acrylic to implement its workaround for Avalon/MFC interop
  24         // focus issues (WinOS bug # 1713206)
  25         public static readonly RoutedCommand OnBeginExtendedEdit = new RoutedCommand("OnBeginExtendedEdit", typeof(PropertyContainerPopup));
  26         public static readonly RoutedCommand OnEndExtendedEdit = new RoutedCommand("OnEndExtendedEdit", typeof(PropertyContainerPopup));
  27
  28         public static CustomPopupPlacementCallback RightAlignedPopupPlacement
  29         {
  30             get { return new CustomPopupPlacementCallback(PropertyContainerPopup.RightAlignedPopupPlacementCallback); }
  31         }
  32
  33         protected override void OnOpened(EventArgs e)
  34         {
  35             // Fire OnBeginExtendedEdit command (for Acrylic)
  36             PropertyContainer owningPropertyContainer = (PropertyContainer)this.GetValue(PropertyContainer.OwningPropertyContainerProperty);
  37             PropertyContainerPopup.OnBeginExtendedEdit.Execute(this, owningPropertyContainer);
  38
  39             base.OnOpened(e);
  40         }
  41
  42         protected override void OnClosed(EventArgs e)
  43         {
  44             base.OnClosed(e);
  45
  46             PropertyContainer owningPropertyContainer = (PropertyContainer)this.GetValue(PropertyContainer.OwningPropertyContainerProperty);
  47
  48             // Revert back to Inline when the popup is dismissed and we haven't already switched
  49             // to the pinned mode
  50             if (owningPropertyContainer != null && owningPropertyContainer.ActiveEditMode == PropertyContainerEditMode.ExtendedPopup)
  51             {
  52                 DependencyObject potentialDescendant = Mouse.Captured as DependencyObject;
  53                 if (potentialDescendant != null && owningPropertyContainer.IsAncestorOf(potentialDescendant))
  54                 {
  55                     // v1 38479: This is a mitigation for Windows OS Bug 1965872.
  56                     // Here we force any control which has capture to lose it, though
  57                     // this situation can occur in other cases (e.g. via extensibility) but this covers the most
  58                     // common cases and is a safe fix.
  59                     Mouse.Capture(null);
  60                 }
  61
  62                 owningPropertyContainer.ActiveEditMode = PropertyContainerEditMode.Inline;
  63             }
  64
  65             // Fire OnEndExtendedEdit command (for Acrylic)
  66             OnEndExtendedEdit.Execute(this, owningPropertyContainer);
  67         }
  68
  69         public static CustomPopupPlacement[] RightAlignedPopupPlacementCallback(Size popupSize, Size targetSize, Point offset)
  70         {
  71             return new CustomPopupPlacement[] { new CustomPopupPlacement(new Point(targetSize.Width - popupSize.Width, targetSize.Height), PopupPrimaryAxis.Horizontal) };
  72         }
  73     }
  74 }