private TextEditProxy FindOrCreateEditProxy(BaseFrameworkElement textElement, bool active)
{
if (this.editProxy != null && this.editProxy.TextSource == textElement)
{
return(this.editProxy);
}
TextEditProxy textEditProxy = Enumerable.FirstOrDefault <TextEditProxy>((IEnumerable <TextEditProxy>) this.nonActiveEditProxies, (Func <TextEditProxy, bool>)(proxy => proxy.TextSource == textElement));
if (textEditProxy == null)
{
textEditProxy = TextEditProxyFactory.CreateEditProxy(textElement);
this.AddEditProxyToScene(textEditProxy, active);
if (active)
{
this.editProxy = textEditProxy;
}
else
{
this.nonActiveEditProxies.Add(textEditProxy);
}
}
else if (active)
{
this.nonActiveEditProxies.Remove(textEditProxy);
this.editProxy = textEditProxy;
textEditProxy.EditingElement.Opacity = 1.0;
if (textEditProxy.TextSource.IsViewObjectValid)
{
this.SetIsTextEditingProperty(textEditProxy.TextSource, true);
}
}
return(textEditProxy);
}
private SceneElement GetContainingTextElement(DocumentNodePath nodePath)
{
if (this.ActiveSceneViewModel == null || this.ActiveSceneViewModel.ActiveEditingContainer == null)
{
return((SceneElement)null);
}
DocumentNodePath editingContainer = this.ActiveSceneViewModel.GetAncestorInEditingContainer(nodePath, this.ActiveSceneViewModel.ActiveEditingContainer.DocumentNodePath, (DocumentNodePath)null);
SceneElement sceneElement = (SceneElement)null;
if (editingContainer != null)
{
sceneElement = this.ActiveSceneViewModel.GetSceneNode(editingContainer.Node) as SceneElement;
}
for (; sceneElement != null; sceneElement = sceneElement.ParentElement)
{
if (sceneElement.IsVisuallySelectable || sceneElement == this.ActiveSceneViewModel.ActiveEditingContainer)
{
if (!TextEditProxyFactory.IsEditableElement(sceneElement))
{
sceneElement = (SceneElement)null;
break;
}
break;
}
}
return(sceneElement);
}
protected override bool OnDragOver(DragEventArgs args)
{
base.OnDragOver(args);
if (!this.IsSuspended)
{
BaseFrameworkElement textElementAtPoint = this.GetEditableTextElementAtPoint(args.GetPosition((IInputElement)this.ActiveView.ViewRootContainer));
if (textElementAtPoint != null)
{
if (textElementAtPoint != this.TextSource)
{
bool flag = false;
foreach (TextEditProxy textEditProxy in this.nonActiveEditProxies)
{
if (textEditProxy.TextSource == textElementAtPoint)
{
flag = true;
break;
}
}
if (!flag)
{
TextEditProxy editProxy = TextEditProxyFactory.CreateEditProxy(textElementAtPoint);
this.AddEditProxyToScene(editProxy, true);
this.nonActiveEditProxies.Add(editProxy);
}
}
}
else
{
this.ClearNonActiveEditProxies();
}
}
return(false);
}
private BaseFrameworkElement GetEditableTextElementAtPoint(Point point)
{
SceneElement elementAtPoint = this.ActiveView.GetElementAtPoint(point, new HitTestModifier(this.GetContainingTextElement), new InvisibleObjectHitTestModifier(SceneView.SmartInvisiblePanelSelect), (ICollection <BaseFrameworkElement>)null);
BaseFrameworkElement frameworkElement = (BaseFrameworkElement)null;
if (elementAtPoint != null && TextEditProxyFactory.IsEditableElement(elementAtPoint) && !elementAtPoint.IsLocked)
{
frameworkElement = elementAtPoint as BaseFrameworkElement;
}
return(frameworkElement);
}
private void EditDifferentElement(BaseFrameworkElement element)
{
this.EndTextEdit();
if (element != null && !TextEditProxyFactory.IsEditableElement((SceneElement)element))
{
element = (BaseFrameworkElement)null;
}
bool flag1 = false;
if (element != null && element.IsViewObjectValid)
{
SceneElementSelectionSet elementSelectionSet = this.ActiveSceneViewModel.ElementSelectionSet;
if (elementSelectionSet != null)
{
elementSelectionSet.SetSelection((SceneElement)element);
}
flag1 = true;
this.BeginTextEdit(element);
}
TextSelectionSet textSelectionSet = this.ActiveSceneViewModel.TextSelectionSet;
bool flag2 = false;
if (textSelectionSet != null)
{
flag2 = this.ActiveSceneViewModel.TextSelectionSet.IsActive;
int num = flag1 ? true : false;
textSelectionSet.TextEditProxy = this.editProxy;
textSelectionSet.IsActive = flag1;
}
if (flag1 != flag2)
{
this.ActiveSceneViewModel.RefreshSelection();
}
if (flag1)
{
return;
}
this.ActiveView.ReturnFocus();
}
public static bool IsEditableElement(SceneElement sceneElement, bool textElementOnly)
{
bool flag = false;
if (PlatformTypes.RichTextBox.IsAssignableFrom((ITypeId)sceneElement.Type) || PlatformTypes.TextBox.IsAssignableFrom((ITypeId)sceneElement.Type) || (PlatformTypes.PasswordBox.IsAssignableFrom((ITypeId)sceneElement.Type) || PlatformTypes.TextBlock.IsAssignableFrom((ITypeId)sceneElement.Type)) || (PlatformTypes.FlowDocumentScrollViewer.IsAssignableFrom((ITypeId)sceneElement.Type) || PlatformTypes.AccessText.IsAssignableFrom((ITypeId)sceneElement.Type)))
{
flag = true;
}
else if (ProjectNeutralTypes.Label.IsAssignableFrom((ITypeId)sceneElement.Type) && TextEditProxyFactory.HasEditableContent(sceneElement, ContentControlElement.ContentProperty))
{
flag = true;
}
else if (!textElementOnly)
{
if (ProjectNeutralTypes.HeaderedContentControl.IsAssignableFrom((ITypeId)sceneElement.Type) && TextEditProxyFactory.HasEditableContent(sceneElement, TextEditProxyFactory.HeaderedContentControlHeaderProperty))
{
flag = true;
}
else if (PlatformTypes.ContentControl.IsAssignableFrom((ITypeId)sceneElement.Type) && !PlatformTypes.Window.IsAssignableFrom((ITypeId)sceneElement.Type) && (!PlatformTypes.ScrollViewer.IsAssignableFrom((ITypeId)sceneElement.Type) && TextEditProxyFactory.HasEditableContent(sceneElement, ContentControlElement.ContentProperty)))
{
flag = true;
}
else if (ProjectNeutralTypes.HeaderedItemsControl.IsAssignableFrom((ITypeId)sceneElement.Type) && TextEditProxyFactory.HasEditableContent(sceneElement, TextEditProxyFactory.HeaderedItemsControlHeaderProperty))
{
flag = true;
}
}
if (sceneElement.Type.XamlSourcePath != null)
{
flag = false;
}
return(flag);
}
public static bool IsEditableElement(SceneElement sceneElement)
{
return(TextEditProxyFactory.IsEditableElement(sceneElement, false));
}
private void ViewModel_EarlySceneUpdatePhase(object sender, SceneUpdatePhaseEventArgs args)
{
if (this.IsSuspended)
{
return;
}
if (args.IsDirtyViewState(SceneViewModel.ViewStateBits.ElementSelection))
{
SceneElementSelectionSet elementSelectionSet = this.ActiveSceneViewModel.ElementSelectionSet;
BaseFrameworkElement frameworkElement = (BaseFrameworkElement)null;
if (elementSelectionSet != null && elementSelectionSet.PrimarySelection != null && TextEditProxyFactory.IsEditableElement(elementSelectionSet.PrimarySelection))
{
frameworkElement = elementSelectionSet.PrimarySelection as BaseFrameworkElement;
}
if (this.TextSource != frameworkElement)
{
this.PopSelfOrExitEditMode();
return;
}
}
if (this.editProxy == null)
{
return;
}
if (args.IsDirtyViewState(SceneViewModel.ViewStateBits.EntireScene))
{
foreach (DocumentNodeChange change in args.DocumentChanges.DistinctChanges)
{
if ((change.ParentNode == this.TextSource.DocumentNode || change.OldChildNode == this.TextSource.DocumentNode) && !this.editProxy.IsTextChange(change))
{
this.PopSelfOrExitEditMode();
return;
}
}
}
foreach (DocumentNodeChange change in args.DocumentChanges.DistinctChanges)
{
if ((change.ParentNode == this.TextSource.DocumentNode || change.OldChildNode == this.TextSource.DocumentNode) && this.editProxy.IsTextChange(change))
{
this.editProxy.ApplyPropertyChange(change);
this.textChangesApplied = true;
}
}
if (!this.editProxy.TextSource.IsViewObjectValid)
{
return;
}
this.SetIsTextEditingProperty(this.editProxy.TextSource, true);
}
protected override void OnResume()
{
if (this.isCreatingText)
{
SceneElement primarySelection = this.Tool.ActiveSceneViewModel.ElementSelectionSet.PrimarySelection;
if ((this.editProxy == null || this.editProxy.TextSource != primarySelection) && (primarySelection != null && TextEditProxyFactory.IsEditableElement(primarySelection)) && this.selectedElementBeforeTextCreation != primarySelection)
{
this.EditDifferentElement(primarySelection as BaseFrameworkElement);
if (this.ActiveSceneViewModel.TextSelectionSet.TextEditProxy != null)
{
this.ActiveSceneViewModel.TextSelectionSet.TextEditProxy.EditingElement.SelectAll();
}
}
else
{
this.EditDifferentElement((BaseFrameworkElement)null);
}
this.isCreatingText = false;
}
base.OnResume();
}