internal static Activity GetNextSelectableActivity(Activity currentActivity)
{
object obj2;
ActivityDesigner designer = ActivityDesigner.GetDesigner(currentActivity);
CompositeActivityDesigner designer2 = (designer != null) ? designer.ParentDesigner : null;
if (designer2 == null)
{
return(null);
}
DesignerNavigationDirection direction = ((designer2 is ParallelActivityDesigner) || (designer2 is ActivityPreviewDesigner)) ? DesignerNavigationDirection.Right : DesignerNavigationDirection.Down;
Activity activity = null;
for (obj2 = designer2.GetNextSelectableObject(currentActivity, direction); ((activity == null) && (obj2 != null)) && (obj2 != currentActivity); obj2 = designer2.GetNextSelectableObject(obj2, direction))
{
activity = obj2 as Activity;
}
if (activity == null)
{
direction = ((designer2 is ParallelActivityDesigner) || (designer2 is ActivityPreviewDesigner)) ? DesignerNavigationDirection.Left : DesignerNavigationDirection.Up;
for (obj2 = designer2.GetNextSelectableObject(currentActivity, direction); ((activity == null) && (obj2 != null)) && (obj2 != currentActivity); obj2 = designer2.GetNextSelectableObject(obj2, direction))
{
activity = obj2 as Activity;
}
}
if (activity == null)
{
activity = designer2.Activity;
}
return(activity);
}
public override AccessibleObject Navigate(AccessibleNavigation navdir)
{
if (navdir == AccessibleNavigation.Up || navdir == AccessibleNavigation.Previous ||
navdir == AccessibleNavigation.Down || navdir == AccessibleNavigation.Next)
{
DesignerNavigationDirection navigate = default(DesignerNavigationDirection);
if (navdir == AccessibleNavigation.Up || navdir == AccessibleNavigation.Previous)
{
navigate = DesignerNavigationDirection.Up;
}
else
{
navigate = DesignerNavigationDirection.Down;
}
CompositeActivityDesigner compositeDesigner = this.ActivityDesigner.ParentDesigner;
if (compositeDesigner != null)
{
object nextSelectableObj = compositeDesigner.GetNextSelectableObject(this.ActivityDesigner.Activity, navigate);
if (nextSelectableObj is ConnectorHitTestInfo)
{
return(GetChild(((ConnectorHitTestInfo)nextSelectableObj).MapToIndex()));
}
}
}
return(base.Navigate(navdir));
}
public override AccessibleObject Navigate(AccessibleNavigation navdir)
{
if (((navdir == AccessibleNavigation.Up) || (navdir == AccessibleNavigation.Previous)) || ((navdir == AccessibleNavigation.Down) || (navdir == AccessibleNavigation.Next)))
{
DesignerNavigationDirection down = DesignerNavigationDirection.Down;
if ((navdir == AccessibleNavigation.Up) || (navdir == AccessibleNavigation.Previous))
{
down = DesignerNavigationDirection.Up;
}
else
{
down = DesignerNavigationDirection.Down;
}
CompositeActivityDesigner parentDesigner = base.ActivityDesigner.ParentDesigner;
if (parentDesigner != null)
{
object nextSelectableObject = parentDesigner.GetNextSelectableObject(base.ActivityDesigner.Activity, down);
if (nextSelectableObject is ConnectorHitTestInfo)
{
return(this.GetChild(((ConnectorHitTestInfo)nextSelectableObject).MapToIndex()));
}
}
}
return(base.Navigate(navdir));
}
public override AccessibleObject Navigate(AccessibleNavigation navdir)
{
if (navdir == AccessibleNavigation.FirstChild)
{
return(GetChild(0));
}
else if (navdir == AccessibleNavigation.LastChild)
{
return(GetChild(GetChildCount() - 1));
}
else
{
CompositeActivityDesigner compositeDesigner = this.activityDesigner.ParentDesigner;
if (compositeDesigner != null)
{
DesignerNavigationDirection navigate = default(DesignerNavigationDirection);
if (navdir == AccessibleNavigation.Left)
{
navigate = DesignerNavigationDirection.Left;
}
else if (navdir == AccessibleNavigation.Right)
{
navigate = DesignerNavigationDirection.Right;
}
else if (navdir == AccessibleNavigation.Up || navdir == AccessibleNavigation.Previous)
{
navigate = DesignerNavigationDirection.Up;
}
else if (navdir == AccessibleNavigation.Down || navdir == AccessibleNavigation.Next)
{
navigate = DesignerNavigationDirection.Down;
}
ActivityDesigner activityDesigner = ActivityDesigner.GetDesigner(compositeDesigner.GetNextSelectableObject(this.activityDesigner.Activity, navigate) as Activity);
if (activityDesigner != null)
{
return(activityDesigner.AccessibilityObject);
}
}
}
return(base.Navigate(navdir));
}
public override AccessibleObject Navigate(AccessibleNavigation navdir)
{
if (navdir == AccessibleNavigation.FirstChild)
{
return(this.GetChild(0));
}
if (navdir == AccessibleNavigation.LastChild)
{
return(this.GetChild(this.GetChildCount() - 1));
}
CompositeActivityDesigner parentDesigner = this.activityDesigner.ParentDesigner;
if (parentDesigner != null)
{
DesignerNavigationDirection down = DesignerNavigationDirection.Down;
if (navdir == AccessibleNavigation.Left)
{
down = DesignerNavigationDirection.Left;
}
else if (navdir == AccessibleNavigation.Right)
{
down = DesignerNavigationDirection.Right;
}
else if ((navdir == AccessibleNavigation.Up) || (navdir == AccessibleNavigation.Previous))
{
down = DesignerNavigationDirection.Up;
}
else if ((navdir == AccessibleNavigation.Down) || (navdir == AccessibleNavigation.Next))
{
down = DesignerNavigationDirection.Down;
}
System.Workflow.ComponentModel.Design.ActivityDesigner designer = System.Workflow.ComponentModel.Design.ActivityDesigner.GetDesigner(parentDesigner.GetNextSelectableObject(this.activityDesigner.Activity, down) as Activity);
if (designer != null)
{
return(designer.AccessibilityObject);
}
}
return(base.Navigate(navdir));
}