protected override void OnDragDrop(DragEventArgs de) { bool flag = false; if (((this.dragControls != null) && (this.primaryDragControl != null)) && this.Control.Controls.Contains(this.primaryDragControl)) { flag = true; } if (!flag) { if (this.Control != null) { this.Control.ControlAdded += new ControlEventHandler(this.OnChildControlAdded); } try { base.OnDragDrop(de); } finally { if (this.Control != null) { this.Control.ControlAdded -= new ControlEventHandler(this.OnChildControlAdded); } } } else { IDesignerHost host = this.GetService(typeof(IDesignerHost)) as IDesignerHost; if (host != null) { string str; DesignerTransaction transaction = null; bool flag2 = de.Effect == DragDropEffects.Copy; ArrayList list = null; ISelectionService service = null; if (this.dragControls.Count == 1) { string componentName = TypeDescriptor.GetComponentName(this.dragControls[0]); if ((componentName == null) || (componentName.Length == 0)) { componentName = this.dragControls[0].GetType().Name; } str = System.Design.SR.GetString(flag2 ? "BehaviorServiceCopyControl" : "BehaviorServiceMoveControl", new object[] { componentName }); } else { str = System.Design.SR.GetString(flag2 ? "BehaviorServiceCopyControls" : "BehaviorServiceMoveControls", new object[] { this.dragControls.Count }); } transaction = host.CreateTransaction(str); try { while ((this.insertIndex < (this.childInfo.Length - 1)) && this.childInfo[this.insertIndex].inSelectionColl) { this.insertIndex++; } IComponentChangeService service2 = this.GetService(typeof(IComponentChangeService)) as IComponentChangeService; PropertyDescriptor member = TypeDescriptor.GetProperties(this.Control)["Controls"]; System.Windows.Forms.Control child = null; if (this.insertIndex != this.childInfo.Length) { child = this.Control.Controls[this.insertIndex]; } else { this.insertIndex = -1; } if ((service2 != null) && (member != null)) { service2.OnComponentChanging(this.Control, member); } if (!flag2) { for (int j = 0; j < this.dragControls.Count; j++) { this.Control.Controls.Remove(this.dragControls[j] as System.Windows.Forms.Control); } if (child != null) { this.insertIndex = this.Control.Controls.GetChildIndex(child, false); } } else { ArrayList objects = new ArrayList(); for (int k = 0; k < this.dragControls.Count; k++) { objects.Add(this.dragControls[k]); } objects = DesignerUtils.CopyDragObjects(objects, base.Component.Site) as ArrayList; if (objects == null) { return; } list = new ArrayList(); for (int m = 0; m < objects.Count; m++) { list.Add(this.dragControls[m]); if (this.primaryDragControl.Equals(this.dragControls[m] as System.Windows.Forms.Control)) { this.primaryDragControl = objects[m] as System.Windows.Forms.Control; } this.dragControls[m] = objects[m]; } service = (ISelectionService)this.GetService(typeof(ISelectionService)); } if (this.insertIndex == -1) { this.insertIndex = this.Control.Controls.Count; } this.Control.Controls.Add(this.primaryDragControl); this.Control.Controls.SetChildIndex(this.primaryDragControl, this.insertIndex); this.insertIndex++; if (service != null) { service.SetSelectedComponents(new object[] { this.primaryDragControl }, SelectionTypes.Click | SelectionTypes.Replace); } for (int i = this.dragControls.Count - 1; i >= 0; i--) { if (!this.primaryDragControl.Equals(this.dragControls[i] as System.Windows.Forms.Control)) { this.Control.Controls.Add(this.dragControls[i] as System.Windows.Forms.Control); this.Control.Controls.SetChildIndex(this.dragControls[i] as System.Windows.Forms.Control, this.insertIndex); this.insertIndex++; if (service != null) { service.SetSelectedComponents(new object[] { this.dragControls[i] }, SelectionTypes.Add); } } } if ((service2 != null) && (member != null)) { service2.OnComponentChanged(this.Control, member, null, null); } if (list != null) { for (int n = 0; n < list.Count; n++) { this.dragControls[n] = list[n]; } } base.OnDragComplete(de); if (transaction != null) { transaction.Commit(); transaction = null; } } finally { if (transaction != null) { transaction.Cancel(); } } } } this.insertIndex = InvalidIndex; }
// OLE DragDrop virtual methods /// <summary> /// OnDragDrop can be overridden so that a Behavior can specify its own Drag/Drop rules. /// </summary> public override void OnDragDrop(Glyph g, DragEventArgs e) { ToolStripItem currentDropItem = ToolStripDesigner.s_dragItem; // Ensure that the list item index is contained in the data. if (e.Data is ToolStripItemDataObject && currentDropItem != null) { ToolStripItemDataObject data = (ToolStripItemDataObject)e.Data; // Get the PrimarySelection before the Drag operation... ToolStripItem selectedItem = data.PrimarySelection; IDesignerHost designerHost = (IDesignerHost)currentDropItem.Site.GetService(typeof(IDesignerHost)); Debug.Assert(designerHost != null, "Invalid DesignerHost"); //Do DragDrop only if currentDropItem has changed. if (currentDropItem != selectedItem && designerHost != null) { ArrayList components = data.DragComponents; ToolStrip parentToolStrip = currentDropItem.GetCurrentParent() as ToolStrip; int primaryIndex = -1; string transDesc; bool copy = (e.Effect == DragDropEffects.Copy); if (components.Count == 1) { string name = TypeDescriptor.GetComponentName(components[0]); if (name == null || name.Length == 0) { name = components[0].GetType().Name; } transDesc = string.Format(copy ? SR.BehaviorServiceCopyControl : SR.BehaviorServiceMoveControl, name); } else { transDesc = string.Format(copy ? SR.BehaviorServiceCopyControls : SR.BehaviorServiceMoveControls, components.Count); } DesignerTransaction designerTransaction = designerHost.CreateTransaction(transDesc); try { IComponentChangeService changeSvc = (IComponentChangeService)currentDropItem.Site.GetService(typeof(IComponentChangeService)); if (changeSvc != null) { if (parentToolStrip is ToolStripDropDown dropDown) { ToolStripItem ownerItem = dropDown.OwnerItem; changeSvc.OnComponentChanging(ownerItem, TypeDescriptor.GetProperties(ownerItem)["DropDownItems"]); } else { changeSvc.OnComponentChanging(parentToolStrip, TypeDescriptor.GetProperties(parentToolStrip)["Items"]); } } // If we are copying, then we want to make a copy of the components we are dragging if (copy) { // Remember the primary selection if we had one if (selectedItem != null) { primaryIndex = components.IndexOf(selectedItem); } ToolStripKeyboardHandlingService keyboardHandlingService = GetKeyBoardHandlingService(selectedItem); if (keyboardHandlingService != null) { keyboardHandlingService.CopyInProgress = true; } components = DesignerUtils.CopyDragObjects(components, currentDropItem.Site) as ArrayList; if (keyboardHandlingService != null) { keyboardHandlingService.CopyInProgress = false; } if (primaryIndex != -1) { selectedItem = components[primaryIndex] as ToolStripItem; } } if (e.Effect == DragDropEffects.Move || copy) { ISelectionService selSvc = GetSelectionService(currentDropItem); if (selSvc != null) { // Insert the item. if (parentToolStrip is ToolStripOverflow) { parentToolStrip = (((ToolStripOverflow)parentToolStrip).OwnerItem).Owner; } int indexOfItemUnderMouseToDrop = parentToolStrip.Items.IndexOf(ToolStripDesigner.s_dragItem); if (indexOfItemUnderMouseToDrop != -1) { int indexOfPrimarySelection = 0; if (selectedItem != null) { indexOfPrimarySelection = parentToolStrip.Items.IndexOf(selectedItem); } if (indexOfPrimarySelection != -1 && indexOfItemUnderMouseToDrop > indexOfPrimarySelection) { indexOfItemUnderMouseToDrop--; } foreach (ToolStripItem item in components) { parentToolStrip.Items.Insert(indexOfItemUnderMouseToDrop, item); } } selSvc.SetSelectedComponents(new IComponent[] { selectedItem }, SelectionTypes.Primary | SelectionTypes.Replace); } } if (changeSvc != null) { ToolStripDropDown dropDown = parentToolStrip as ToolStripDropDown; if (dropDown != null) { ToolStripItem ownerItem = dropDown.OwnerItem; changeSvc.OnComponentChanged(ownerItem, TypeDescriptor.GetProperties(ownerItem)["DropDownItems"], null, null); } else { changeSvc.OnComponentChanged(parentToolStrip, TypeDescriptor.GetProperties(parentToolStrip)["Items"], null, null); } //fire extra changing/changed events. if (copy) { if (dropDown != null) { ToolStripItem ownerItem = dropDown.OwnerItem; changeSvc.OnComponentChanging(ownerItem, TypeDescriptor.GetProperties(ownerItem)["DropDownItems"]); changeSvc.OnComponentChanged(ownerItem, TypeDescriptor.GetProperties(ownerItem)["DropDownItems"], null, null); } else { changeSvc.OnComponentChanging(parentToolStrip, TypeDescriptor.GetProperties(parentToolStrip)["Items"]); changeSvc.OnComponentChanged(parentToolStrip, TypeDescriptor.GetProperties(parentToolStrip)["Items"], null, null); } } } //If Parent is DropDown... we have to manage the Glyphs .... foreach (ToolStripItem item in components) { if (item is ToolStripDropDownItem) { if (designerHost.GetDesigner(item) is ToolStripMenuItemDesigner itemDesigner) { itemDesigner.InitializeDropDown(); } } if (item.GetCurrentParent() is ToolStripDropDown dropDown && !(dropDown is ToolStripOverflow)) { if (dropDown.OwnerItem is ToolStripDropDownItem ownerItem) { if (designerHost.GetDesigner(ownerItem) is ToolStripMenuItemDesigner ownerDesigner) { ownerDesigner.InitializeBodyGlyphsForItems(false, ownerItem); ownerDesigner.InitializeBodyGlyphsForItems(true, ownerItem); } } } } // Refresh on SelectionManager... BehaviorService bSvc = GetBehaviorService(currentDropItem); if (bSvc != null) { bSvc.SyncSelection(); } } catch (Exception ex) { if (designerTransaction != null) { designerTransaction.Cancel(); designerTransaction = null; } if (ClientUtils.IsCriticalException(ex)) { throw; } } finally { if (designerTransaction != null) { designerTransaction.Commit(); designerTransaction = null; } } } } }
public override void OnDragDrop(Glyph g, DragEventArgs e) { ToolStripItem dragItem = ToolStripDesigner.dragItem; if ((e.Data is ToolStripItemDataObject) && (dragItem != null)) { ToolStripItemDataObject data = (ToolStripItemDataObject)e.Data; ToolStripItem primarySelection = data.PrimarySelection; IDesignerHost host = (IDesignerHost)dragItem.Site.GetService(typeof(IDesignerHost)); if ((dragItem != primarySelection) && (host != null)) { string str; ArrayList dragComponents = data.DragComponents; ToolStrip currentParent = dragItem.GetCurrentParent(); int index = -1; bool flag = e.Effect == DragDropEffects.Copy; if (dragComponents.Count == 1) { string componentName = TypeDescriptor.GetComponentName(dragComponents[0]); if ((componentName == null) || (componentName.Length == 0)) { componentName = dragComponents[0].GetType().Name; } str = System.Design.SR.GetString(flag ? "BehaviorServiceCopyControl" : "BehaviorServiceMoveControl", new object[] { componentName }); } else { str = System.Design.SR.GetString(flag ? "BehaviorServiceCopyControls" : "BehaviorServiceMoveControls", new object[] { dragComponents.Count }); } DesignerTransaction transaction = host.CreateTransaction(str); try { IComponentChangeService service = (IComponentChangeService)dragItem.Site.GetService(typeof(IComponentChangeService)); if (service != null) { ToolStripDropDown down = currentParent as ToolStripDropDown; if (down != null) { ToolStripItem ownerItem = down.OwnerItem; service.OnComponentChanging(ownerItem, TypeDescriptor.GetProperties(ownerItem)["DropDownItems"]); } else { service.OnComponentChanging(currentParent, TypeDescriptor.GetProperties(currentParent)["Items"]); } } if (flag) { if (primarySelection != null) { index = dragComponents.IndexOf(primarySelection); } ToolStripKeyboardHandlingService keyBoardHandlingService = this.GetKeyBoardHandlingService(primarySelection); if (keyBoardHandlingService != null) { keyBoardHandlingService.CopyInProgress = true; } dragComponents = DesignerUtils.CopyDragObjects(dragComponents, dragItem.Site) as ArrayList; if (keyBoardHandlingService != null) { keyBoardHandlingService.CopyInProgress = false; } if (index != -1) { primarySelection = dragComponents[index] as ToolStripItem; } } if ((e.Effect == DragDropEffects.Move) || flag) { ISelectionService selectionService = this.GetSelectionService(dragItem); if (selectionService != null) { if (currentParent is ToolStripOverflow) { currentParent = ((ToolStripOverflow)currentParent).OwnerItem.Owner; } int num2 = currentParent.Items.IndexOf(ToolStripDesigner.dragItem); if (num2 != -1) { int num3 = 0; if (primarySelection != null) { num3 = currentParent.Items.IndexOf(primarySelection); } if ((num3 != -1) && (num2 > num3)) { num2--; } foreach (ToolStripItem item4 in dragComponents) { currentParent.Items.Insert(num2, item4); } } selectionService.SetSelectedComponents(new IComponent[] { primarySelection }, SelectionTypes.Click | SelectionTypes.Replace); } } if (service != null) { ToolStripDropDown down2 = currentParent as ToolStripDropDown; if (down2 != null) { ToolStripItem component = down2.OwnerItem; service.OnComponentChanged(component, TypeDescriptor.GetProperties(component)["DropDownItems"], null, null); } else { service.OnComponentChanged(currentParent, TypeDescriptor.GetProperties(currentParent)["Items"], null, null); } if (flag) { if (down2 != null) { ToolStripItem item6 = down2.OwnerItem; service.OnComponentChanging(item6, TypeDescriptor.GetProperties(item6)["DropDownItems"]); service.OnComponentChanged(item6, TypeDescriptor.GetProperties(item6)["DropDownItems"], null, null); } else { service.OnComponentChanging(currentParent, TypeDescriptor.GetProperties(currentParent)["Items"]); service.OnComponentChanged(currentParent, TypeDescriptor.GetProperties(currentParent)["Items"], null, null); } } } foreach (ToolStripItem item7 in dragComponents) { if (item7 is ToolStripDropDownItem) { ToolStripMenuItemDesigner designer = host.GetDesigner(item7) as ToolStripMenuItemDesigner; if (designer != null) { designer.InitializeDropDown(); } } ToolStripDropDown down3 = item7.GetCurrentParent() as ToolStripDropDown; if ((down3 != null) && !(down3 is ToolStripOverflow)) { ToolStripDropDownItem item8 = down3.OwnerItem as ToolStripDropDownItem; if (item8 != null) { ToolStripMenuItemDesigner designer2 = host.GetDesigner(item8) as ToolStripMenuItemDesigner; if (designer2 != null) { designer2.InitializeBodyGlyphsForItems(false, item8); designer2.InitializeBodyGlyphsForItems(true, item8); } } } } BehaviorService behaviorService = this.GetBehaviorService(dragItem); if (behaviorService != null) { behaviorService.SyncSelection(); } } catch (Exception exception) { if (transaction != null) { transaction.Cancel(); transaction = null; } if (System.Windows.Forms.ClientUtils.IsCriticalException(exception)) { throw; } } finally { if (transaction != null) { transaction.Commit(); transaction = null; } } } } }