private void OnStatusDelete(object sender, EventArgs e)
{
MenuCommand command = (MenuCommand)sender;
command.Enabled = false;
IDesignerHost service = this.serviceProvider.GetService(typeof(IDesignerHost)) as IDesignerHost;
if (((service == null) || (service.RootComponent == null)) || !this.selectionService.GetComponentSelected(service.RootComponent))
{
ICollection selectedComponents = this.selectionService.GetSelectedComponents();
if (DesignerHelpers.AreComponentsRemovable(selectedComponents))
{
foreach (DictionaryEntry entry in Helpers.PairUpCommonParentActivities(Helpers.GetTopLevelActivities(selectedComponents)))
{
CompositeActivityDesigner designer = ActivityDesigner.GetDesigner(entry.Key as Activity) as CompositeActivityDesigner;
if ((designer != null) && !designer.CanRemoveActivities(new List <Activity>((Activity[])((ArrayList)entry.Value).ToArray(typeof(Activity))).AsReadOnly()))
{
command.Enabled = false;
return;
}
}
command.Enabled = true;
}
}
}
protected override bool OnKeyDown(KeyEventArgs eventArgs)
{
if (eventArgs != null && (eventArgs.KeyCode == Keys.PageUp || eventArgs.KeyCode == Keys.PageDown))
{
UpdateViewOnPageUpDown(eventArgs.KeyCode == Keys.PageUp);
}
ISelectionService selectionService = ((IServiceProvider)this.ParentView).GetService(typeof(ISelectionService)) as ISelectionService;
//enter key (
if (eventArgs.KeyCode == Keys.Enter)
{
// on enter key we want to do DoDefault of the designer
IDesigner designer = ActivityDesigner.GetDesigner(selectionService.PrimarySelection as Activity) as IDesigner;
if (designer != null)
{
designer.DoDefaultAction();
eventArgs.Handled = true;
}
}
else if (eventArgs.KeyCode == Keys.Escape)
{
if (!eventArgs.Handled)
{
CompositeActivityDesigner parentDesigner = ActivityDesigner.GetParentDesigner(selectionService.PrimarySelection);
if (parentDesigner != null)
{
selectionService.SetSelectedComponents(new object[] { parentDesigner.Activity }, SelectionTypes.Replace);
}
eventArgs.Handled = true;
}
}
else if (eventArgs.KeyCode == Keys.Delete)
{
// check if we are cutting root component
IDesignerHost designerHost = ((IServiceProvider)this.ParentView).GetService(typeof(IDesignerHost)) as IDesignerHost;
if (!(designerHost == null || selectionService.GetComponentSelected(designerHost.RootComponent)))
{
//Check that we are cutting all activities
//Check if we are in writable context
ICollection components = selectionService.GetSelectedComponents();
if (DesignerHelpers.AreComponentsRemovable(components))
{
// check if we can delete these
List <Activity> topLevelActivities = new List <Activity>(Helpers.GetTopLevelActivities(selectionService.GetSelectedComponents()));
bool needToDelete = (topLevelActivities.Count > 0);
IDictionary commonParentActivities = Helpers.PairUpCommonParentActivities(topLevelActivities);
foreach (DictionaryEntry entry in commonParentActivities)
{
CompositeActivityDesigner compositeActivityDesigner = ActivityDesigner.GetDesigner(entry.Key as Activity) as CompositeActivityDesigner;
if (compositeActivityDesigner != null && !compositeActivityDesigner.CanRemoveActivities(new List <Activity>((Activity[])((ArrayList)entry.Value).ToArray(typeof(Activity))).AsReadOnly()))
{
needToDelete = false;
}
}
if (needToDelete)
{
List <ConnectorHitTestInfo> connectors = new List <ConnectorHitTestInfo>();
foreach (object component in components)
{
ConnectorHitTestInfo connector = component as ConnectorHitTestInfo;
if (connector != null)
{
connectors.Add(connector);
}
}
//cache selcted connectors before calling this func
CompositeActivityDesigner.RemoveActivities((IServiceProvider)this.ParentView, topLevelActivities.AsReadOnly(), SR.GetString(SR.DeletingActivities));
//add connectors back to the selection service
if (selectionService != null && connectors.Count > 0)
{
selectionService.SetSelectedComponents(connectors, SelectionTypes.Add);
}
eventArgs.Handled = true;
}
}
}
}
//navigation (left, right, up, down, tab, shift-tab)
else if (eventArgs.KeyCode == Keys.Left || eventArgs.KeyCode == Keys.Right || eventArgs.KeyCode == Keys.Up || eventArgs.KeyCode == Keys.Down || eventArgs.KeyCode == Keys.Tab)
{
//we'll pass it to the parent designer of the primary selected designer
//sequential designers just navigate between their children
//free form designers may move their children on arrow keys and navigate on tab
ActivityDesigner designer = ActivityDesigner.GetDesigner(selectionService.PrimarySelection as Activity) as ActivityDesigner;
if (designer != null && designer.ParentDesigner != null)
{
//we will let the parent see if it wants to handle the event,
//otherwise the selected designer itself will be called from a designer message filter below
((IWorkflowDesignerMessageSink)designer.ParentDesigner).OnKeyDown(eventArgs);
eventArgs.Handled = true;
}
}
if (!eventArgs.Handled)
{
ActivityDesigner designerWithFocus = GetDesignerWithFocus();
if (designerWithFocus != null)
{
((IWorkflowDesignerMessageSink)designerWithFocus).OnKeyDown(eventArgs);
}
}
return(eventArgs.Handled);
}
protected override bool OnKeyDown(KeyEventArgs eventArgs)
{
if ((eventArgs != null) && ((eventArgs.KeyCode == Keys.PageUp) || (eventArgs.KeyCode == Keys.Next)))
{
this.UpdateViewOnPageUpDown(eventArgs.KeyCode == Keys.PageUp);
}
ISelectionService service = ((IServiceProvider)base.ParentView).GetService(typeof(ISelectionService)) as ISelectionService;
if (eventArgs.KeyCode == Keys.Enter)
{
IDesigner designer = ActivityDesigner.GetDesigner(service.PrimarySelection as Activity);
if (designer != null)
{
designer.DoDefaultAction();
eventArgs.Handled = true;
}
}
else if (eventArgs.KeyCode == Keys.Escape)
{
if (!eventArgs.Handled)
{
CompositeActivityDesigner parentDesigner = ActivityDesigner.GetParentDesigner(service.PrimarySelection);
if (parentDesigner != null)
{
service.SetSelectedComponents(new object[] { parentDesigner.Activity }, SelectionTypes.Replace);
}
eventArgs.Handled = true;
}
}
else if (eventArgs.KeyCode == Keys.Delete)
{
IDesignerHost host = ((IServiceProvider)base.ParentView).GetService(typeof(IDesignerHost)) as IDesignerHost;
if ((host != null) && !service.GetComponentSelected(host.RootComponent))
{
ICollection selectedComponents = service.GetSelectedComponents();
if (DesignerHelpers.AreComponentsRemovable(selectedComponents))
{
List <Activity> activities = new List <Activity>(Helpers.GetTopLevelActivities(service.GetSelectedComponents()));
bool flag = activities.Count > 0;
foreach (DictionaryEntry entry in Helpers.PairUpCommonParentActivities(activities))
{
CompositeActivityDesigner designer3 = ActivityDesigner.GetDesigner(entry.Key as Activity) as CompositeActivityDesigner;
if ((designer3 != null) && !designer3.CanRemoveActivities(new List <Activity>((Activity[])((ArrayList)entry.Value).ToArray(typeof(Activity))).AsReadOnly()))
{
flag = false;
}
}
if (flag)
{
List <ConnectorHitTestInfo> components = new List <ConnectorHitTestInfo>();
foreach (object obj2 in selectedComponents)
{
ConnectorHitTestInfo item = obj2 as ConnectorHitTestInfo;
if (item != null)
{
components.Add(item);
}
}
CompositeActivityDesigner.RemoveActivities(base.ParentView, activities.AsReadOnly(), SR.GetString("DeletingActivities"));
if ((service != null) && (components.Count > 0))
{
service.SetSelectedComponents(components, SelectionTypes.Add);
}
eventArgs.Handled = true;
}
}
}
}
else if (((eventArgs.KeyCode == Keys.Left) || (eventArgs.KeyCode == Keys.Right)) || (((eventArgs.KeyCode == Keys.Up) || (eventArgs.KeyCode == Keys.Down)) || (eventArgs.KeyCode == Keys.Tab)))
{
ActivityDesigner designer4 = ActivityDesigner.GetDesigner(service.PrimarySelection as Activity);
if ((designer4 != null) && (designer4.ParentDesigner != null))
{
((IWorkflowDesignerMessageSink)designer4.ParentDesigner).OnKeyDown(eventArgs);
eventArgs.Handled = true;
}
}
if (!eventArgs.Handled)
{
ActivityDesigner designerWithFocus = this.GetDesignerWithFocus();
if (designerWithFocus != null)
{
((IWorkflowDesignerMessageSink)designerWithFocus).OnKeyDown(eventArgs);
}
}
return(eventArgs.Handled);
}
