protected virtual int QueryCommandStatus()

in vsintegration/src/FSharp.LanguageService.Base/ViewFilter.cs [322:429]
87 lines of code
32 McCabe index (conditional complexity)

        protected virtual int QueryCommandStatus(ref Guid guidCmdGroup, uint nCmdId)
        {
            ExpansionProvider ep = GetExpansionProvider();
            if (ep != null && ep.InTemplateEditingMode)
            {
                int hr = 0;
                if (ep.HandleQueryStatus(ref guidCmdGroup, nCmdId, out hr))
                    return hr;
            }
            if (guidCmdGroup == typeof(VsCommands).GUID)
            {
                VsCommands cmd = (VsCommands)nCmdId;

                switch (cmd)
                {
                case VsCommands.GotoDefn:
                case VsCommands.GotoDecl:
                case VsCommands.GotoRef:
                case VsCommands.Goto:
                    return (int)OLECMDF.OLECMDF_SUPPORTED | (int)OLECMDF.OLECMDF_ENABLED;
                }
            }
            else if (guidCmdGroup == typeof(VsCommands2K).GUID)
            {
                VsCommands2K cmd = (VsCommands2K)nCmdId;

                switch (cmd)
                {
                case VsCommands2K.FORMATDOCUMENT:
                    if (this.CanReformat())
                        return (int)OLECMDF.OLECMDF_SUPPORTED | (int)OLECMDF.OLECMDF_ENABLED;
                    break;
                case VsCommands2K.FORMATSELECTION:
                    if (this.CanReformat())
                        return (int)OLECMDF.OLECMDF_SUPPORTED | (int)OLECMDF.OLECMDF_ENABLED;
                    break;

                case VsCommands2K.COMMENT_BLOCK:
                case VsCommands2K.UNCOMMENT_BLOCK:
                    if (this.commentSupported)
                        return (int)OLECMDF.OLECMDF_SUPPORTED | (int)OLECMDF.OLECMDF_ENABLED;
                    break;

                case VsCommands2K.SHOWMEMBERLIST:
                case VsCommands2K.COMPLETEWORD:
                case VsCommands2K.PARAMINFO:
                    return (int)OLECMDF.OLECMDF_SUPPORTED | (int)OLECMDF.OLECMDF_ENABLED;

                case VsCommands2K.QUICKINFO:
                    if (this.service.Preferences.EnableQuickInfo)
                    {
                        return (int)OLECMDF.OLECMDF_SUPPORTED | (int)OLECMDF.OLECMDF_ENABLED;
                    }
                    break;

                //                    case VsCommands2K.HANDLEIMEMESSAGE:
                //                        return 0;

                // Let the core editor handle this.  Stop outlining also removes user
                // defined hidden sections so it is handy to keep this enabled.
                //                    case VsCommands2K.OUTLN_STOP_HIDING_ALL: 
                //                        int rc = (int)OLECMDF.OLECMDF_SUPPORTED;
                //                        if (this.source.OutliningEnabled) {
                //                            rc |= (int)OLECMDF.OLECMDF_ENABLED;
                //                        }
                //                        return rc;

                case VsCommands2K.OUTLN_START_AUTOHIDING:
                    if (this.source.OutliningEnabled)
                    {
                        return (int)OleConstants.OLECMDERR_E_NOTSUPPORTED;
                    }
                    return (int)OLECMDF.OLECMDF_SUPPORTED | (int)OLECMDF.OLECMDF_ENABLED;

                case VsCommands2K.OUTLN_STOP_HIDING_ALL: //"stop outlining" on context menu
                    if (this.source.OutliningEnabled)
                    {
                        return (int)OLECMDF.OLECMDF_SUPPORTED | (int)OLECMDF.OLECMDF_ENABLED;
                    }
                    return (int)OleConstants.OLECMDERR_E_NOTSUPPORTED;
                }
            }
            else if (guidCmdGroup == Microsoft.VisualStudio.VSConstants.VsStd11)
            {
                if (nCmdId == (uint)Microsoft.VisualStudio.VSConstants.VSStd11CmdID.ExecuteSelectionInInteractive)
                {
                    return (int)OLECMDF.OLECMDF_SUPPORTED | (int)OLECMDF.OLECMDF_ENABLED;
                }
                else if (nCmdId == (uint)Microsoft.VisualStudio.VSConstants.VSStd11CmdID.ExecuteLineInInteractive)
                {
                    return (int)OLECMDF.OLECMDF_SUPPORTED | (int)OLECMDF.OLECMDF_ENABLED | (int)OLECMDF.OLECMDF_DEFHIDEONCTXTMENU;
                }
            }
            else if (guidCmdGroup == guidInteractive)
            {
                if (nCmdId == cmdIDDebugSelection)
                {
                    var dbgState = Interactive.Hooks.GetDebuggerState(GetProjectSystemPackage());

                    if (dbgState == Interactive.FsiDebuggerState.AttachedNotToFSI)
                        return (int)OLECMDF.OLECMDF_INVISIBLE;
                    else
                        return (int)OLECMDF.OLECMDF_SUPPORTED | (int)OLECMDF.OLECMDF_ENABLED;
                }
            }

            return (int)NativeMethods.E_FAIL; // delegate to next command target.
        }