public int Exec(ref Guid pguidCmdGroup, uint nCmdID, uint nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut) { // Command handling if (pguidCmdGroup == Constants.HotCommandsGuid) { // Dispatch to the correct command handler switch (nCmdID) { case Constants.ToggleCommentCmdId: return(ToggleComment.Instance.HandleCommand(textView, classifier, GetShellCommandDispatcher(), editorOperations)); case Constants.ExpandSelectionCmdId: return(ExpandSelection.Instance.HandleCommand(textView, true)); case Constants.ShrinkSelectionCmdId: return(ExpandSelection.Instance.HandleCommand(textView, false)); case Constants.FormatCodeCmdId: return(FormatCode.Instance.HandleCommand(textView, GetShellCommandDispatcher())); case Constants.DuplicateSelectionCmdId: return(DuplicateSelection.HandleCommand(textView, classifier, GetShellCommandDispatcher(), editorOperations)); case Constants.DuplicateSelectionReverseCmdId: return(DuplicateSelection.HandleCommand(textView, classifier, GetShellCommandDispatcher(), editorOperations, true)); case Constants.JoinLinesCmdId: return(JoinLines.HandleCommand(textView, classifier, GetShellCommandDispatcher(), editorOperations)); case Constants.MoveMemberUpCmdId: return(MoveMemberUp.Instance.HandleCommand(textView, GetShellCommandDispatcher(), editorOperations)); case Constants.MoveMemberDownCmdId: return(MoveMemberDown.Instance.HandleCommand(textView, GetShellCommandDispatcher(), editorOperations)); case Constants.GoToPreviousMemberCmdId: return(MoveCursorToAdjacentMember.MoveToPreviousMember(textView, editorOperations)); case Constants.GoToNextMemberCmdId: return(MoveCursorToAdjacentMember.MoveToNextMember(textView, editorOperations)); } } // No commands called. Pass to next command handler. if (Next != null) { return(Next.Exec(ref pguidCmdGroup, nCmdID, nCmdexecopt, pvaIn, pvaOut)); } return((int)OLEConstants.OLECMDERR_E_UNKNOWNGROUP); }
public int Exec(ref Guid pguidCmdGroup, uint nCmdID, uint nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut) { // Command handling if (pguidCmdGroup == Constants.HotCommandsGuid) { // Due to Async initialization, some Instances might be uninitialized and will return null. // Safely catch the NullReferenceException and report a message to the status bar try { // Dispatch to the correct command handler switch (nCmdID) { case Constants.ToggleCommentCmdId: return(ToggleComment.Instance.HandleCommand(textView, classifier, GetShellCommandDispatcher(), editorOperations)); case Constants.ExpandSelectionCmdId: return(ExpandSelection.Instance.HandleCommand(textView, true)); case Constants.ShrinkSelectionCmdId: return(ExpandSelection.Instance.HandleCommand(textView, false)); case Constants.FormatCodeCmdId: return(FormatCode.Instance.HandleCommand(textView, GetShellCommandDispatcher())); case Constants.DuplicateSelectionCmdId: return(DuplicateSelection.HandleCommand(textView, classifier, GetShellCommandDispatcher(), editorOperations)); case Constants.DuplicateSelectionReverseCmdId: return(DuplicateSelection.HandleCommand(textView, classifier, GetShellCommandDispatcher(), editorOperations, true)); case Constants.JoinLinesCmdId: return(JoinLines.HandleCommand(textView, classifier, GetShellCommandDispatcher(), editorOperations)); case Constants.MoveMemberUpCmdId: return(MoveMemberUp.Instance.HandleCommand(textView, GetShellCommandDispatcher(), editorOperations)); case Constants.MoveMemberDownCmdId: return(MoveMemberDown.Instance.HandleCommand(textView, GetShellCommandDispatcher(), editorOperations)); case Constants.GoToPreviousMemberCmdId: return(MoveCursorToAdjacentMember.MoveToPreviousMember(textView, editorOperations)); case Constants.GoToNextMemberCmdId: return(MoveCursorToAdjacentMember.MoveToNextMember(textView, editorOperations)); } // Clear the Status Bar text StatusBarService.Clear(); } catch (NullReferenceException) { // Most likely exception: System.NullReferenceException: 'Object reference not set to an instance of an object.' // Resulting from the command being called before Async loading has taken place. // Swallow the exception and hope it works the next time the user tries it. // Print a message to the StatusBar StatusBarService.SetText("HotCommands is still loading. Please try again soon."); } } // No commands called. Pass to next command handler. if (Next != null) { return(Next.Exec(ref pguidCmdGroup, nCmdID, nCmdexecopt, pvaIn, pvaOut)); } return((int)OLEConstants.OLECMDERR_E_UNKNOWNGROUP); }