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); }