PDF_Office/PDF Office/PDF Master/Class/PDFWindowController/Side/LeftSide/KMLeftSideViewController+Action.swift

//
//  KMLeftSideViewController+Action.swift
//  PDF Reader Pro
//
//  Created by tangchao on 2023/12/22.
//

import Foundation

// MARK: - Action

extension KMLeftSideViewController {
    @IBAction func leftSideViewMoreButtonAction(_ sender: AnyObject?) {
        let button = sender as? NSButton
        let tag = button?.tag ?? 0
        if (tag == 300) {
            var selectedRow = 0
            if (self.snapshotTableView.selectedRow >= 0) {
                selectedRow = self.snapshotTableView.selectedRow;
            } else {
                return
            }
            let model = self.snapshots[selectedRow]
            let controller = model.windowC
            let menu = NSMenu()
            let itemExport = menu.addItem(title: KMLocalizedString("Export", "Menu item title"), action: nil, target: self)
            let subMenu = NSMenu()

            var t = subMenu.addItem(title: KMLocalizedString("PNG", "Menu item title"), action: #selector(menuItemClick_ExportPNG), target: self)
            t?.representedObject = controller

            t = subMenu.addItem(title: KMLocalizedString("JPG", "Menu item title"), action: #selector(menuItemClick_ExportJPG), target: self)
            t?.representedObject = controller

            t = subMenu.addItem(title: KMLocalizedString("PDF", "Menu item title"), action: #selector(menuItemClick_ExportPDF), target: self)
            t?.representedObject = controller
            itemExport?.submenu = subMenu

            let itemPrint = menu.addItem(title: KMLocalizedString("Print", "Menu item title"), action: #selector(menuItemClick_Print), target: self)
            itemPrint?.representedObject = controller
            menu.addItem(.separator())

            let itemSelectAll = menu.addItem(title: KMLocalizedString("Select All", "Menu item title"), action: #selector(menuItemClick_SelectAll), target: self)
            itemSelectAll?.representedObject = controller
            menu.addItem(.separator())

            let itemDeleteAllSnapshot = menu.addItem(title: KMLocalizedString("Delete All Snapshots", "Menu item title"), action: #selector(deleteAllSnapshot), target: self)
            itemDeleteAllSnapshot?.representedObject = controller
//
            NSMenu.popUpContextMenu(menu, with: NSApp.currentEvent!, for: sender as! NSButton)
        } else if (tag == 302) {
            let menu = NSMenu()
            let expandAllCommentsItem = menu.addItem(title: KMLocalizedString("Expand All", nil), action: #selector(toc_expandAllComments), target: self)
            expandAllCommentsItem?.representedObject = self.tocOutlineView

            let foldAllCommentsItem = menu.addItem(title: KMLocalizedString("Collapse All", nil), action: #selector(toc_foldAllComments), target: self)
            expandAllCommentsItem?.representedObject = self.tocOutlineView
            let item = self.listView.document.outlineRoot()

            var num = 0
            for i in 0 ..< Int(item?.numberOfChildren ?? 0) {
                let outline = item?.child(at: UInt(i))
                if self.tocOutlineView.isItemExpanded(outline) {
                    num += 1
                }
            }

            if let cnt = item?.numberOfChildren, cnt > 0 && num == 0 {
                self.tocType = .fold
            } else if let cnt = item?.numberOfChildren, cnt > 0 && num == cnt {
                self.tocType = .unfold
            } else {
                self.tocType = .none
            }

            if (self.tocType == .unfold) {
                expandAllCommentsItem?.state = .on
                foldAllCommentsItem?.state = .off
            } else if (self.tocType == .fold) {
                expandAllCommentsItem?.state = .off
                foldAllCommentsItem?.state = .on
            } else {
                expandAllCommentsItem?.state = .off
                foldAllCommentsItem?.state = .off
            }
            let removeEntryItem = menu.addItem(title: KMLocalizedString("Remove All Outlines", nil), action: #selector(leftSideEmptyAnnotationClick_DeleteOutline), target: self)
            removeEntryItem?.representedObject = self.tocOutlineView
            NSMenu.popUpContextMenu(menu, with: NSApp.currentEvent!, for: sender as! NSButton)
        } else if (tag == 304) {
            let menu = NSMenu()
            let object = KMPopupMenuObject()
            object.menuTag = 1001
            menu.delegate = object
            object.enterControllerCallback = { [weak self] isEnter in
                if (isEnter) {
                    self?.moreButtonLayer?.isHidden = false
                } else {
                    self?.moreButtonLayer?.isHidden = true
                }
            }
            let expandAllCommentsItem = menu.addItem(title: KMLocalizedString("Expand All", nil), action: #selector(note_expandAllComments), target: self)
            expandAllCommentsItem?.representedObject = self.noteOutlineView
            let foldAllCommentsItem = menu.addItem(title: KMLocalizedString("Collapse All", nil), action: #selector(note_foldAllComments), target: self)
            foldAllCommentsItem?.representedObject = self.noteOutlineView
            if (self.foldType == .unfold) {
                expandAllCommentsItem?.state = .on
                foldAllCommentsItem?.state = .off
            } else if (self.foldType == .fold) {
                expandAllCommentsItem?.state = .off
                foldAllCommentsItem?.state = .on
            } else {
                expandAllCommentsItem?.state = .off
                foldAllCommentsItem?.state = .off
            }

            let showAnnotationItem = menu.addItem(title: KMLocalizedString("Show Note", nil), action: nil, target: self)
            let subMenu = NSMenu()
            var t = subMenu.addItem(title: KMLocalizedString("Page", nil), action: #selector(noteShowNoteAction), target: self)
            let pageKey = self.noteTypeDict["kKMNoteFilterAnnotationPageKey"] as? Bool ?? false
            if pageKey {
                t?.state = .off
            } else {
                t?.state = .on
            }
            t?.representedObject = self.noteOutlineView
            t?.tag = 101
            t = subMenu.addItem(title: KMLocalizedString("Time", nil) , action: #selector(noteShowNoteAction), target: self)
            let timeKey = self.noteTypeDict["kKMNoteFilterAnnotationTimeKey"] as? Bool ?? false
            if timeKey {
                t?.state = .off
            } else {
                t?.state = .on
            }
            t?.representedObject = self.noteOutlineView
            t?.tag = 102
            t = subMenu.addItem(title: KMLocalizedString("Author", nil) , action: #selector(noteShowNoteAction), target: self)
            let authorKey = self.noteTypeDict["kKMNoteFilterAnnotationAutherKey"] as? Bool ?? false
            if authorKey {
                t?.state = .off
            } else {
                t?.state = .on
            }
            t?.representedObject = self.noteOutlineView
            t?.tag = 103
            showAnnotationItem?.submenu = subMenu
            menu.addItem(.separator())

            let exportAnnotationsItem = menu.addItem(title: NSLocalizedString("Export Annotations…", tableName: "MainMenu", comment: ""), action: nil, target: self)
            let subMenu2 = NSMenu()
            var t2 = subMenu2.addItem(title: NSLocalizedString("PDF", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
            t2?.representedObject = self.noteOutlineView
            t2?.tag = 0
            t2 = subMenu2.addItem(title: NSLocalizedString("PDF Bundle", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
            t2?.representedObject = self.noteOutlineView
            t2?.tag = 1
            t2 = subMenu2.addItem(title: NSLocalizedString("PDF Reader Pro Edition Notes", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
            t2?.representedObject = self.noteOutlineView
            t2?.tag = 2
            t2 = subMenu2.addItem(title: NSLocalizedString("Notes as Text", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
            t2?.representedObject = self.noteOutlineView
            t2?.tag = 3
            t2 = subMenu2.addItem(title: NSLocalizedString("Notes as RTF", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
            t2?.representedObject = self.noteOutlineView
            t2?.tag = 4
            t2 = subMenu2.addItem(title: NSLocalizedString("Notes as RTFD", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
            t2?.representedObject = self.noteOutlineView
            t2?.tag = 5
            t2 = subMenu2.addItem(title: NSLocalizedString("Notes as FDF", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
            t2?.representedObject = self.noteOutlineView
            t2?.tag = 6
            exportAnnotationsItem?.submenu = subMenu2
            menu.addItem(.separator())

            let removeAllAnnotationsItem = menu.addItem(title: NSLocalizedString("Remove All Annotations", tableName: "MainMenu", comment: ""), action: #selector(leftSideEmptyAnnotationClick_DeleteAnnotation), target: self)
            removeAllAnnotationsItem?.representedObject = self.noteOutlineView
            NSMenu.popUpContextMenu(menu, with: NSApp.currentEvent!, for: button!, with: nil)
        }
    }
}

// MARK: - Double Action

extension KMLeftSideViewController {
    @objc func toggleSelectedSnapshots(_ sender: AnyObject?) {
        let indexs = self.snapshotTableView.selectedRowIndexes
        if indexs.isEmpty {
            return
        }
        let model = self.snapshots[indexs.last!]
        let windowC = model.windowC
        if let data = windowC?.window?.isVisible, data {
            windowC?.miniaturize()
        } else {
            windowC?.deminiaturize()
        }
        
        var rowIndexSet = IndexSet()
        let row = self.snapshotTableView.selectedRow
        if row >= 0 && row < self.snapshots.count {
            rowIndexSet.insert(row)
        }
        var columnIndexSet = IndexSet()
        columnIndexSet.insert(0)
        self.snapshotTableView.reloadData(forRowIndexes: rowIndexSet, columnIndexes: columnIndexSet)
    }
}

// MARK: - NSMenuDelegate

extension KMLeftSideViewController: NSMenuDelegate {
    func menuNeedsUpdate(_ menu: NSMenu) {
        if menu.isEqual(to: self.tocOutlineView.menu) {
            menu.removeAllItems()
            _ = menu.addItem(withTitle: NSLocalizedString("Add Item", comment: ""), action: #selector(outlineContextMenuItemClicked_AddEntry), target: self, tag: KMOutlineViewMenuItemTag.addEntry.rawValue)
            _ = menu.addItem(withTitle: NSLocalizedString("Add Sub-Item", comment: ""), action: #selector(outlineContextMenuItemClicked_AddChildEntry), target: self, tag: KMOutlineViewMenuItemTag.addChild.rawValue)
            _ = menu.addItem(withTitle: NSLocalizedString("Add To A Higher Level", comment: ""), action: #selector(outlineContextMenuItemClicked_AddAuntEntry), target: self, tag: KMOutlineViewMenuItemTag.addAunt.rawValue)
            menu.addItem(.separator())
            _ = menu.addItem(withTitle: NSLocalizedString("Delete", comment: ""), action: #selector(outlineContextMenuItemClicked_RemoveEntry), target: self, tag: KMOutlineViewMenuItemTag.remove.rawValue)
            menu.addItem(.separator())
            _ = menu.addItem(withTitle: NSLocalizedString("Edit", comment: ""), action: #selector(outlineContextMenuItemClicked_Edit), target: self, tag: KMOutlineViewMenuItemTag.edit.rawValue)
            _ = menu.addItem(withTitle: NSLocalizedString("Change Destination", comment: ""), action: #selector(outlineContextMenuItemClicked_SetDestination), target: self, tag: KMOutlineViewMenuItemTag.setDestination.rawValue)
            _ = menu.addItem(withTitle: NSLocalizedString("Rename", comment: ""), action: #selector(outlineContextMenuItemClicked_Rename), target: self, tag: KMOutlineViewMenuItemTag.rename.rawValue)
            menu.addItem(.separator())
            _ = menu.addItem(withTitle: NSLocalizedString("Promote", comment: ""), action: #selector(outlineContextMenuItemClicked_Promote), target: self, tag: KMOutlineViewMenuItemTag.promote.rawValue)
            _ = menu.addItem(withTitle: NSLocalizedString("Demote", comment: ""), action: #selector(outlineContextMenuItemClicked_Demote), target: self, tag: KMOutlineViewMenuItemTag.demote.rawValue)
            return
        }
        var item: NSMenuItem?
        menu.removeAllItems()
        if menu.isEqual(to: self.thumbnailTableView.menu) {
            let row = self.thumbnailTableView.clickedRow
            if self.listView.document.documentURL == nil || self.thumbnailTableView.selectedRowIndexes.contains(row) == false{
                return
            }
            if (row != -1 && self.listView.document.isLocked == false) {
                if(self.thumbnailTableView.selectedRowIndexes.count == self.listView.document.pageCount) {
                    item = menu.addItem(title: KMLocalizedString("Cut", "Menu item title"), action: nil, target: self)
                } else {
                    item = menu.addItem(title: KMLocalizedString("Cut", "Menu item title"), action: #selector(cutPage), target: self)
                }
                item?.representedObject = IndexSet(integer: row)
                
                
                item = menu.addItem(title: KMLocalizedString("Copy", "Menu item title"), action: #selector(copyPage), target: self)
                item?.representedObject = IndexSet(integer: row)
                
                if (self.copyPages.count > 0) {
                    item = menu.addItem(title: KMLocalizedString("Paste", "Menu item title"), action: #selector(pastePage), target: self)
                }else{
                    item = menu.addItem(title: KMLocalizedString("Paste", "Menu item title"), action: nil, target: self)
                }
                item?.representedObject = IndexSet(integer: row)

                menu.addItem(.separator())

                if(self.thumbnailTableView.selectedRowIndexes.count == self.listView.document.pageCount) {
                    item = menu.addItem(title: KMLocalizedString("Delete", "Menu item title"), action: nil, target: self)
                } else {
                    item = menu.addItem(title: KMLocalizedString("Delete", "Menu item title"), action: #selector(deletePage), target: self)
                }
                item?.representedObject = IndexSet(integer: row)

                menu.addItem(.separator())

                item = menu.addItem(title: KMLocalizedString("Rotate", "Menu item title"), action: #selector(rotatePageMenuAction), target: self)
                item?.representedObject = IndexSet(integer: row)

                item = menu.addItem(title: KMLocalizedString("Insert", "Menu item title"), action: nil, target: self)
                let subMenu = NSMenu()
                _ = subMenu.addItem(title: KMLocalizedString("Blank Page", "Menu item title"), action: #selector(quickInsert), target: self)
                _ = subMenu.addItem(title: KMLocalizedString("Blank Page - Custom...", "Menu item title"), action: #selector(insert), target: self)
                _ = subMenu.addItem(title: KMLocalizedString("From PDF", "Menu item title"), action: #selector(insertPDF), target: self)
                item?.submenu = subMenu
                item?.representedObject = IndexSet(integer: row)

                item = menu.addItem(title: KMLocalizedString("Extract", "Menu item title"), action: #selector(extractPage), target: self)
                item?.representedObject = IndexSet(integer: row)

                item = menu.addItem(title: KMLocalizedString("Page Edit", "Menu item title"), action: #selector(pageEdit), target: self)

                menu.addItem(.separator())

                var displayStr = ""
                if (self.isDisplayPageSize) {
                    displayStr = KMLocalizedString("Hide Page Size", "Menu item title")
                } else {
                    displayStr = KMLocalizedString("Display Page Size", "Menu item title")
                }
                item = menu.addItem(title: displayStr, action: #selector(displayPageSize), target: self)
                item?.representedObject = IndexSet(integer: row)
                
                if let doct = self.listView?.document {
                    item = menu.addItem(title: KMLocalizedString("Share", "Menu item title"), action: nil, target: self)
                    
                    var tName = self.fileNameWithSelectedPages(self.thumbnailTableView.selectedRowIndexes)
                    if (tName.count > 50) {
                        tName = tName.substring(to: 50)
                    }
                    item?.submenu = NSSharingServicePicker.menu(forSharingItems: [doct.documentURL as Any], subjectContext: tName, withTarget: self, selector: #selector(sharePage), serviceDelegate: nil)
                }
            }
        } else if menu.isEqual(to: self.findTableView.menu) {
            var rowIndexes = self.findTableView.selectedRowIndexes
            let row = self.findTableView.clickedRow
            if (row != -1) {
                if rowIndexes.contains(row) == false {
                    rowIndexes = IndexSet(integer: row)
                }
                
                var selections: [CPDFSelection] = []
                for (i, data) in self.searchResults.enumerated() {
                    if rowIndexes.contains(i) {
                        selections.append(data.selection)
                    }
                }
//                if ([pdfView hideNotes] == NO && [[self pdfDocument] allowsNotes]) {
                if self.listView.hideNotes == false {
                    item = menu.addItem(withTitle: KMLocalizedString("Add New Circle", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: CAnnotationType.circle.rawValue)
                    item?.representedObject = selections
                    item = menu.addItem(withTitle: KMLocalizedString("Add New Rectangle", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: CAnnotationType.square.rawValue)
                    item?.representedObject = selections
                    item = menu.addItem(withTitle: KMLocalizedString("Add New Highlight", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: CAnnotationType.highlight.rawValue)
                    item?.representedObject = selections
                    item = menu.addItem(withTitle: KMLocalizedString("Add New Underline", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: CAnnotationType.underline.rawValue)
                    item?.representedObject = selections
                    item = menu.addItem(withTitle: KMLocalizedString("Add New Strikethrough", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: CAnnotationType.strikeOut.rawValue)
                    item?.representedObject = selections
                }
            }
        } else if menu.isEqual(to: self.groupedFindTableView.menu) {
            var rowIndexes = self.groupedFindTableView.selectedRowIndexes
            let row = self.groupedFindTableView.clickedRow
            if (row != -1) {
                if rowIndexes.contains(row) == false {
                    rowIndexes = IndexSet(integer: row)
                }
//                NSArray *selections = [[[leftSideController.groupedFindArrayController arrangedObjects] objectsAtIndexes:rowIndexes] valueForKeyPath:@"@unionOfArrays.matches"];
                var selections: [CPDFSelection] = []
                for (i, data) in self.groupSearchResults.enumerated() {
                    if rowIndexes.contains(i) {
                        for searchM in data.datas {
                            selections.append(searchM.selection)
                        }
                    }
                }

                item = menu.addItem(title: KMLocalizedString("Select", "Menu item title"), action: #selector(selectSelections), target: self)
                item?.representedObject = selections
                menu.addItem(.separator())
//                if ([pdfView hideNotes] == NO && [[self pdfDocument] allowsNotes]) {
                if self.listView.hideNotes == false {
                    item = menu.addItem(withTitle: KMLocalizedString("Add New Circle", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: CAnnotationType.circle.rawValue)
                    item?.representedObject = selections
                    item = menu.addItem(withTitle: KMLocalizedString("Add New Rectangle", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: CAnnotationType.square.rawValue)
                    item?.representedObject = selections
                    item = menu.addItem(withTitle: KMLocalizedString("Add New Highlight", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: CAnnotationType.highlight.rawValue)
                    item?.representedObject = selections
                    item = menu.addItem(withTitle: KMLocalizedString("Add New Underline", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: CAnnotationType.underline.rawValue)
                    item?.representedObject = selections
                    item = menu.addItem(withTitle: KMLocalizedString("Add New Strikethrough", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: CAnnotationType.strikeOut.rawValue)
                    item?.representedObject = selections
                }
            }
        } else if menu.isEqual(to: self.snapshotTableView.menu) {
            let row = self.snapshotTableView.clickedRow
            if (row != -1) {
                let model = self.snapshots[row]
                let controller = model.windowC

                if let data = controller?.window?.isVisible, data {
                    item = menu.addItem(title: KMLocalizedString("Hide", "Menu item title"), action: #selector(hideSnapshot), target: self)
                    item?.representedObject = controller
                } else {
                    item = menu.addItem(title: KMLocalizedString("Show", "Menu item title"), action: #selector(showSnapshot), target: self)
                    item?.representedObject = controller
                }
                menu.addItem(.separator())

                item = menu.addItem(title: KMLocalizedString("Export", "Menu item title"), action: nil, target: self)
                let subMenu = NSMenu()

                var t = subMenu.addItem(title: KMLocalizedString("PNG", "Menu item title"), action: #selector(menuItemClick_ExportPNG), target: self)
                t?.representedObject = controller

                t = subMenu.addItem(title: KMLocalizedString("JPG", "Menu item title"), action: #selector(menuItemClick_ExportJPG), target: self)
                t?.representedObject = controller
                
                t = subMenu.addItem(title: KMLocalizedString("PDF", "Menu item title"), action: #selector(menuItemClick_ExportPDF), target: self)
                t?.representedObject = controller
                item?.submenu = subMenu

                item = menu.addItem(title: KMLocalizedString("Print", "Menu item title"), action: #selector(menuItemClick_Print), target: self)
                item?.representedObject = controller
                menu.addItem(.separator())
                
                item = menu.addItem(title: KMLocalizedString("Copy", "Menu item title"), action: #selector(menuItemClick_Copy), target: self)
                item?.representedObject = controller
                menu.addItem(.separator())

                item = menu.addItem(title: KMLocalizedString("Delete", "Menu item title"), action: #selector(deleteSnapshot), target: self)
                item?.representedObject = controller
                item = menu.addItem(title: KMLocalizedString("Delete All Snapshots", "Menu item title"), action: #selector(deleteAllSnapshot), target: self)
                item?.representedObject = controller
            }
        } else if menu.isEqual(to: self.noteOutlineView.menu) {
            var items: NSArray?
            var rowIndexes = self.noteOutlineView.selectedRowIndexes
            let row = self.noteOutlineView.clickedRow
            if (row != -1) {
                if rowIndexes.contains(row) == false {
                    rowIndexes = IndexSet(integer: row)
                }
                items = self.noteOutlineView.itemsAtRowIndexes(rowIndexes) as NSArray
                
                //                 PDFAnnotation *foldNote = (PDFAnnotation *)notes[row];
                let foldNote = self.allAnnotations[row]
                var isFold = true
                if self.allFoldNotes.contains(foldNote) {
                    isFold = false
                }
                item = menu.addItem(title: KMLocalizedString("Expand", nil), action: #selector(unfoldNoteAction), target: self)
                if (isFold) {
                    item?.state = .off
                } else {
                    item?.state = .on
                }
                item?.representedObject = items
                item = menu.addItem(title: KMLocalizedString("Collapse", nil), action: #selector(foldNoteAction), target: self)
                if (isFold) {
                    item?.state = .on
                } else {
                    item?.state = .off
                }
                item?.representedObject = items
                
                menu.addItem(.separator())
                if self.listView.hideNotes == false {
                    //                                if ([pdfView hideNotes] == NO && [items count] == 1) {
                    let annotation = self.noteItems(items!).lastObject as? CPDFAnnotation
                    if let data = annotation?.isEditable(), data {
                        if annotation?.type == nil {
                            if annotation!.isNote() {
                                // [NSLocalizedString(@"Edit", @"Menu item title") stringByAppendingEllipsis]
                                item = menu.addItem(title: KMLocalizedString("Edit", "Menu item title"), action: #selector(editNoteTextFromTable), target: self)
                                item?.representedObject = annotation
                            }
                        } else if let data = self.noteOutlineView.tableColumn(withIdentifier: NSUserInterfaceItemIdentifier("note"))?.isHidden, data  {
//                            [NSLocalizedString(@"Edit", @"Menu item title") stringByAppendingEllipsis]
                            item = menu.addItem(title: KMLocalizedString("Edit", "Menu item title"), action: #selector(editThisAnnotation), target: self)
                            item?.representedObject = annotation
                        } else {
                            item = menu.addItem(title: KMLocalizedString("Edit", "Menu item title"), action: #selector(editNoteFromTable), target: self)
                            item?.representedObject = annotation
                            item = menu.addItem(title: KMLocalizedString("Edit", "Menu item title"), action: #selector(editThisAnnotation), target: self)
                            item?.representedObject = annotation
                            item?.keyEquivalentModifierMask = [.option]
                            item?.isAlternate = true
                        }
                    }
                }

                if menu.numberOfItems > 0 {
                    item = menu.addItem(title: NSLocalizedString("Export Annotations…", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
                    
                    let subMenu = NSMenu()
                    item?.submenu = subMenu
                    item = subMenu.addItem(title: NSLocalizedString("PDF", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
                    item?.tag = 0
                    item = subMenu.addItem(title: NSLocalizedString("PDF Bundle", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
                    item?.tag = 1
                    item = subMenu.addItem(title: NSLocalizedString("PDF Reader Pro Edition Notes", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
                    item?.tag = 2
                    item = subMenu.addItem(title: NSLocalizedString("Notes as Texts", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
                    item?.tag = 3
                    item = subMenu.addItem(title: NSLocalizedString("Notes as RTF", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
                    item?.tag = 4
                    item = subMenu.addItem(title: NSLocalizedString("Notes as RTFD", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
                    item?.tag = 5
                    item = subMenu.addItem(title: NSLocalizedString("Notes as FDF", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
                    item?.tag = 6
                    
                    menu.addItem(.separator())
                    if self.outlineView(self.noteOutlineView, canDeleteItems: items as! [Any]) {
                        item = menu.addItem(title: KMLocalizedString("Delete", "Menu item title"), action: #selector(deleteNotes), target: self)
                        item?.representedObject = items
                    }
                    item = menu.addItem(title: NSLocalizedString("Remove All Annotations", tableName: "MainMenu", comment: "Menu item title"), action: #selector(removeAllAnnotations), target: self)
                }
            } else {
                let subMenu = NSMenu()
                item?.submenu = subMenu
                item = subMenu.addItem(title: NSLocalizedString("PDF", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
                item?.tag = 0
                item = subMenu.addItem(title: NSLocalizedString("PDF Bundle", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
                item?.tag = 1
                item = subMenu.addItem(title: NSLocalizedString("PDF Reader Pro Edition Notes", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
                item?.tag = 2
                item = subMenu.addItem(title: NSLocalizedString("Notes as Texts", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
                item?.tag = 3
                item = subMenu.addItem(title: NSLocalizedString("Notes as RTF", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
                item?.tag = 4
                item = subMenu.addItem(title: NSLocalizedString("Notes as RTFD", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
                item?.tag = 5
                item = subMenu.addItem(title: NSLocalizedString("Notes as FDF", tableName: "MainMenu", comment: "Menu item title"), action: #selector(exportAnnotationNotes), target: self)
                item?.tag = 6
                
                item = menu.addItem(title: NSLocalizedString("Remove All Annotations", tableName: "MainMenu", comment: "Menu item title"), action: #selector(removeAllAnnotations), target: self)
            }
        }
    }
}

// MARK: - NSMenuItemValidation

extension KMLeftSideViewController: NSMenuItemValidation {
    func validateMenuItem(_ menuItem: NSMenuItem) -> Bool {
        if (self.listView.document == nil || self.listView.document!.isLocked) {
            return false
        }
        let action = menuItem.action
        
        //        if (self.isCompareMode) {
        //            return NO;
        //        }
        //        if (action == @selector(createNewNote:)) {
        //            BOOL isMarkup = [menuItem tag] == SKHighlightNote || [menuItem tag] == SKUnderlineNote || [menuItem tag] == SKStrikeOutNote;
        //            isMarkup = NO;
        //            return [self interactionMode] != SKPresentationMode && [[self pdfDocument] allowsNotes] && ([pdfView toolMode] == SKTextToolMode || [pdfView toolMode] == SKNoteToolMode) && [pdfView hideNotes] == NO && (isMarkup == NO || [[pdfView currentSelection] hasCharacters]);
        //        } else if (action == @selector(editNote:)) {
        //            PDFAnnotation *annotation = [pdfView activeAnnotation];
        //            return [self interactionMode] != SKPresentationMode && [annotation isSkimNote] && ([annotation isEditable]);
        //        } else if (action == @selector(alignLeft:) || action == @selector(alignRight:) || action == @selector(alignCenter:)) {
        //            PDFAnnotation *annotation = [pdfView activeAnnotation];
        //            return [self interactionMode] != SKPresentationMode && [annotation isSkimNote] && ([annotation isEditable]) && [annotation respondsToSelector:@selector(setAlignment:)];
        //        } else if (action == @selector(toggleHideNotes:)) {
        //            if ([pdfView hideNotes])
        //                [menuItem setTitle:NSLocalizedString(@"Show Notes", @"Menu item title")];
        //            else
        //                [menuItem setTitle:NSLocalizedString(@"Hide Notes", @"Menu item title")];
        //            return YES;
        //        } else if (action == @selector(changeDisplaySinglePages:)) {
        //            [menuItem setState:([pdfView displayMode] & kPDFDisplayTwoUp) == (PDFDisplayMode)[menuItem tag] ? NSOnState : NSOffState];
        //            return [self interactionMode] != SKPresentationMode && [[self pdfDocument] isLocked] == NO;
        //        } else if (action == @selector(changeDisplayContinuous:)) {
        //            [menuItem setState:([pdfView displayMode] & kPDFDisplaySinglePageContinuous) == (PDFDisplayMode)[menuItem tag] ? NSOnState : NSOffState];
        //            return [self interactionMode] != SKPresentationMode && [[self pdfDocument] isLocked] == NO;
        //        } else if (action == @selector(changeDisplayMode:)) {
        //            [menuItem setState:[pdfView displayMode] == (PDFDisplayMode)[menuItem tag] ? NSOnState : NSOffState];
        //            return [self interactionMode] != SKPresentationMode && [[self pdfDocument] isLocked] == NO;
        //        } else if (action == @selector(toggleDisplayAsBook:)) {
        //            [menuItem setState:[pdfView displaysAsBook] ? NSOnState : NSOffState];
        //            return [self interactionMode] != SKPresentationMode && [[self pdfDocument] isLocked] == NO && ([pdfView displayMode] == kPDFDisplayTwoUp || [pdfView displayMode] == kPDFDisplayTwoUpContinuous);
        //        } else if (action == @selector(toggleDisplayPageBreaks:)) {
        //            [menuItem setState:[pdfView displaysPageBreaks] ? NSOnState : NSOffState];
        //            return [self interactionMode] != SKPresentationMode && [[self pdfDocument] isLocked] == NO;
        //        } else if (action == @selector(changeDisplayBox:)) {
        //            [menuItem setState:[pdfView displayBox] == (PDFDisplayBox)[menuItem tag] ? NSOnState : NSOffState];
        //            return [self interactionMode] != SKPresentationMode && [[self pdfDocument] isLocked] == NO;
        //        } else if (action == @selector(delete:) || action == @selector(copy:) || action == @selector(cut:) || action == @selector(paste:) || action == @selector(alternatePaste:) || action == @selector(pasteAsPlainText:) || action == @selector(deselectAll:) || action == @selector(changeAnnotationMode:) || action == @selector(changeToolMode:) || action == @selector(changeToolMode:)) {
        //            return [pdfView validateMenuItem:menuItem];
        //        } else
        //        if (action == @selector(doGoToNextPage:)) {
        //            return [pdfView canGoToNextPage];
        //        } else if (action == @selector(doGoToPreviousPage:) ) {
        //            return [pdfView canGoToPreviousPage];
        //        } else if (action == @selector(doGoToFirstPage:)) {
        //            return [pdfView canGoToFirstPage];
        //        } else if (action == @selector(doGoToLastPage:)) {
        //            return [pdfView canGoToLastPage];
        //        } else if (action == @selector(doGoToPage:)) {
        //            return [[self pdfDocument] isLocked] == NO;
        //        } else if (action == @selector(allGoToNextPage:)) {
        //            return [[allMainDocumentPDFViews() valueForKeyPath:@"@min.canGoToNextPage"] boolValue];
        //        } else if (action == @selector(allGoToPreviousPage:)) {
        //            return [[allMainDocumentPDFViews() valueForKeyPath:@"@min.canGoToPreviousPage"] boolValue];
        //        } else if (action == @selector(allGoToFirstPage:)) {
        //            return [[allMainDocumentPDFViews() valueForKeyPath:@"@min.canGoToFirstPage"] boolValue];
        //        } else if (action == @selector(allGoToLastPage:)) {
        //            return [[allMainDocumentPDFViews() valueForKeyPath:@"@min.canGoToLastPage"] boolValue];
        //        } else if (action == @selector(doGoBack:)) {
        //            return [pdfView canGoBack];
        //        } else if (action == @selector(doGoForward:)) {
        //            return [pdfView canGoForward];
        //        } else if (action == @selector(goToMarkedPage:)) {
        //            if (beforeMarkedPageIndex != NSNotFound) {
        //                [menuItem setTitle:NSLocalizedString(@"Jump Back From Marked Page", @"Menu item title")];
        //                return YES;
        //            } else {
        //                [menuItem setTitle:NSLocalizedString(@"Go To Marked Page", @"Menu item title")];
        //                return markedPageIndex != NSNotFound && markedPageIndex != [[pdfView currentPage] pageIndex];
        //            }
        //        } else if (action == @selector(markPage:)) {
        //            return [[self pdfDocument] isLocked] == NO;
        //        } else if (action == @selector(doZoomIn:)) {
        //            return [self interactionMode] != SKPresentationMode && [pdfView canZoomIn];
        //        } else if (action == @selector(doZoomOut:)) {
        //            return [self interactionMode] != SKPresentationMode && [pdfView canZoomOut];
        //        } else if (action == @selector(doZoomToActualSize:)) {
        //            return [[self pdfDocument] isLocked] == NO && ([pdfView autoScales] || fabs([pdfView scaleFactor] - 1.0 ) > 0.01);
        //        } else if (action == @selector(doZoomToPhysicalSize:)) {
        //            return [self interactionMode] != SKPresentationMode && [[self pdfDocument] isLocked] == NO && ([pdfView autoScales] || fabs([pdfView physicalScaleFactor] - 1.0 ) > 0.01);
        //        } else if (action == @selector(doMarqueeZoomTool:)) {
        //            return [self interactionMode] != SKPresentationMode && [[self pdfDocument] isLocked] == NO;
        //        } else if (action == @selector(doZoomToFit:)) {
        //            return [self interactionMode] != SKPresentationMode && [[self pdfDocument] isLocked] == NO && [pdfView autoScales] == NO;
        //        } else if (action == @selector(alternateZoomToFit:)) {
        //            PDFDisplayMode displayMode = [pdfView displayMode];
        //            if (displayMode == kPDFDisplaySinglePage || displayMode == kPDFDisplayTwoUp) {
        //                [menuItem setTitle:NSLocalizedString(@"Zoom To Width", @"Menu item title")];
        //            } else {
        //                [menuItem setTitle:NSLocalizedString(@"Zoom To Height", @"Menu item title")];
        //            }
        //            return [self interactionMode] != SKPresentationMode && [[self pdfDocument] isLocked] == NO;
        //        } else
        //        if (action == @selector(doAutoScale:)) {
        //            return [[self pdfDocument] isLocked] == NO && [pdfView autoScales] == NO;
        //        } else if (action == @selector(toggleAutoScale:)) {
        //            [menuItem setState:[pdfView autoScales] ? NSOnState : NSOffState];
        //            return [[self pdfDocument] isLocked] == NO;
        //        } else if (action == @selector(rotateRight:) || action == @selector(rotateLeft:) || action == @selector(rotateAllRight:) || action == @selector(rotateAllLeft:)) {
        //            return [[self pdfDocument] isLocked] == NO;
        //        } else if (action == @selector(cropAll:) || action == @selector(crop:) || action == @selector(autoCropAll:) || action == @selector(smartAutoCropAll:)) {
        //            return [self interactionMode] != SKPresentationMode && [[self pdfDocument] isLocked] == NO;
        //        } else if (action == @selector(autoSelectContent:)) {
        //            return [self interactionMode] != SKPresentationMode && [[self pdfDocument] isLocked] == NO && [pdfView toolMode] == SKSelectToolMode;
        //        } else if (action == @selector(takeSnapshot:)) {
        //            return [[self pdfDocument] isLocked] == NO;
        //        } else if (action == @selector(toggleLeftSidePane:)) {
        //            if ([self leftSidePaneIsOpen])
        //                [menuItem setTitle:NSLocalizedString(@"Hide Panel", @"Menu item title")];
        //            else
        //                [menuItem setTitle:NSLocalizedString(@"Show Panel", @"Menu item title")];
        //            return YES;
        //        } else if (action == @selector(toggleRightSidePane:)) {
        //            if ([self rightSidePaneIsOpen])
        //                [menuItem setTitle:NSLocalizedString(@"Hide Notes Pane", @"Menu item title")];
        //            else
        //                [menuItem setTitle:NSLocalizedString(@"Show Notes Pane", @"Menu item title")];
        //            return [self interactionMode] != SKPresentationMode;
        //        } else if (action == @selector(changeLeftSidePaneState:)) {
        //            [menuItem setState:mwcFlags.leftSidePaneState == (SKLeftSidePaneState)[menuItem tag] ? (([leftSideController.findTableView window] || [leftSideController.groupedFindTableView window]) ? NSMixedState : NSOnState) : NSOffState];
        //            return (SKLeftSidePaneState)[menuItem tag] == SKSidePaneStateThumbnail || [[pdfView document] outlineRoot];
        //        } else if (action == @selector(changeRightSidePaneState:)) {
        //            [menuItem setState:mwcFlags.rightSidePaneState == (SKRightSidePaneState)[menuItem tag] ? NSOnState : NSOffState];
        //            return [self interactionMode] != SKPresentationMode;
        //        }
        //    //    else if (action == @selector(toggleSplitPDF:)) {
        //    //        if ([(NSView *)secondaryPdfView window])
        //    //            [menuItem setTitle:NSLocalizedString(@"Hide Split PDF", @"Menu item title")];
        //    //        else
        //    //            [menuItem setTitle:NSLocalizedString(@"Show Split PDF", @"Menu item title")];
        //    //        return [self interactionMode] != SKPresentationMode;
        //    //    }
        //        else
        //        if (action == @selector(toggleStatusBar:)) {
        //            if ([statusBar isVisible])
        //                [menuItem setTitle:NSLocalizedString(@"Hide Status Bar", @"Menu item title")];
        //            else
        //                [menuItem setTitle:NSLocalizedString(@"Show Status Bar", @"Menu item title")];
        //            return [self interactionMode] == SKNormalMode || [self interactionMode] == SKFullScreenMode;
        //        } else if (action == @selector(searchPDF:)) {
        //            return [self interactionMode] != SKPresentationMode;
        //        } else if (action == @selector(toggleFullscreen:)) {
        //            if ([self interactionMode] == SKFullScreenMode || [self interactionMode] == SKLegacyFullScreenMode)
        //                [menuItem setTitle:NSLocalizedString(@"Exit Full Screen", @"Menu item title")];
        //            else
        //                [menuItem setTitle:NSLocalizedString(@"Full Screen", @"Menu item title")];
        //            return [self canEnterFullscreen] || [self canExitFullscreen];
        //        } else if (action == @selector(togglePresentation:)) {
        //            if ([self interactionMode] == SKPresentationMode)
        //                [menuItem setTitle:NSLocalizedString(@"Exit Presentation", @"Menu item title")];
        //            else
        //                [menuItem setTitle:NSLocalizedString(@"Presentation", @"Menu item title")];
        //            return [self canEnterPresentation] || [self canExitPresentation];
        //        } else if (action == @selector(getInfo:)) {
        //            return [self interactionMode] != SKPresentationMode;
        //        } else if (action == @selector(performFit:)) {
        //            return [self interactionMode] == SKNormalMode && [[self pdfDocument] isLocked] == NO;
        //        } else if (action == @selector(password:)) {
        //            return [self interactionMode] != SKPresentationMode && [[self pdfDocument] permissionsStatus] != kPDFDocumentPermissionsOwner;
        //        } else if (action == @selector(toggleReadingBar:)) {
        //            if ([[self pdfView] hasReadingBar])
        //                [menuItem setTitle:NSLocalizedString(@"Hide Reading Bar", @"Menu item title")];
        //            else
        //                [menuItem setTitle:NSLocalizedString(@"Show Reading Bar", @"Menu item title")];
        //            return [self interactionMode] != SKPresentationMode && [[self pdfDocument] isLocked] == NO;
        //        } else
        //        if (action == @selector(savePDFSettingToDefaults:)) {
        //            if ([self interactionMode] == SKFullScreenMode || [self interactionMode] == SKLegacyFullScreenMode)
        //                [menuItem setTitle:NSLocalizedString(@"Use Current View Settings as Default for Full Screen", @"Menu item title")];
        //            else
        //                [menuItem setTitle:NSLocalizedString(@"Use Current View Settings as Default", @"Menu item title")];
        //            return [self interactionMode] != SKPresentationMode && [[self pdfDocument] isLocked] == NO;
        //        } else if (action == @selector(chooseTransition:)) {
        //            return [[self pdfDocument] pageCount] > 1;
        //        } else
        if (action == #selector(toggleCaseInsensitiveSearch)) {
            menuItem.state = self.mwcFlags.caseInsensitiveSearch == 1 ? .on : .off
            return true
        } else if (action == #selector(toggleWholeWordSearch)) {
            menuItem.state = self.mwcFlags.wholeWordSearch == 1 ? .on : .off
            return true
        }
//                        else if (action == @selector(toggleCaseInsensitiveNoteSearch:)) {
        //            [menuItem setState:mwcFlags.caseInsensitiveNoteSearch ? NSOnState : NSOffState];
        //            return YES;
        //        } else if (action == @selector(toggleAutoResizeNoteRows:)) {
        //            [menuItem setState:mwcFlags.autoResizeNoteRows ? NSOnState : NSOffState];
        //            return YES;
        //        } else if (action == @selector(performFindPanelAction:)) {
        //            if ([self interactionMode] == SKPresentationMode)
        //                return NO;
        //            switch ([menuItem tag]) {
        //                case NSFindPanelActionShowFindPanel:
        //                    return YES;
        //                case NSFindPanelActionNext:
        //                case NSFindPanelActionPrevious:
        //                    return YES;
        //                case NSFindPanelActionSetFindString:
        //                    return [[[self pdfView] currentSelection] hasCharacters];
        //                default:
        //                    return NO;
        //            }
        //        } else
        //        if (action == @selector(highlightFormFiled:)) {
        //            BOOL highlightFormFiled = [[NSUserDefaults standardUserDefaults] boolForKey:@"kPDFViewHighlightFormFiledKey"];
        //            [menuItem setState:highlightFormFiled ? NSOnState : NSOffState];
        //            return YES;
        //        } else if (action == @selector(highlightLinks:)) {
        //            BOOL highlightLinks = [[NSUserDefaults standardUserDefaults] boolForKey:@"kPDFViewHighlightLinksKey"];
        //            [menuItem setState:highlightLinks ? NSOnState : NSOffState];
        //            return YES;
        //        } else if (action == @selector(link:)) {
        //            return ([self.pdfView toolMode] == SKTextToolMode || [self.pdfView toolMode] == SKNoteToolMode) && [self.pdfView hideNotes] == NO && [self.pdfView.document isLocked] == NO;
        //            return ([self.pdfView toolMode] == SKTextToolMode || [self.pdfView toolMode] == SKNoteToolMode) && [self.pdfView hideNotes] == NO && [self.pdfView.document isLocked] == NO && [[self.pdfView currentSelection] hasCharacters];
        //        } else if (action == @selector(deletePage:)) {
        //            return self.pdfView.document.pageCount > 1 ? YES : NO;
        //        } else if (action == @selector(toggleAutoFlow:)) {
        //            [menuItem setState:[self.pdfView isAutoFlow] ? NSOnState : NSOffState];
        //            return YES;
        //        } else if (action == @selector(themesColor:)){
        //            if (KMPDFViewModeNormal== self.pdfView.viewMode) {
        //                [menuItem setState:(menuItem.tag == 0)?NSOnState:NSOffState];
        //            } else if (KMPDFViewModeSoft == self.pdfView.viewMode){
        //                [menuItem setState:(menuItem.tag == 1)?NSOnState:NSOffState];
        //            } else if (KMPDFViewModeNight == self.pdfView.viewMode){
        //                [menuItem setState:(menuItem.tag == 2)?NSOnState:NSOffState];
        //            } else if (KMPDFViewModeGreen == self.pdfView.viewMode){
        //                [menuItem setState:(menuItem.tag == 3)?NSOnState:NSOffState];
        //            } else if (KMPDFViewModeThemes1 == self.pdfView.viewMode){
        //                [menuItem setState:(menuItem.tag == 4)?NSOnState:NSOffState];
        //            } else if (KMPDFViewModeThemes2 == self.pdfView.viewMode){
        //                [menuItem setState:(menuItem.tag == 5)?NSOnState:NSOffState];
        //            } else if (KMPDFViewModeThemes3 == self.pdfView.viewMode){
        //                [menuItem setState:(menuItem.tag == 6)?NSOnState:NSOffState];
        //            } else if (KMPDFViewModeThemes4 == self.pdfView.viewMode){
        //                [menuItem setState:(menuItem.tag == 7)?NSOnState:NSOffState];
        //            }
        //    //        else {
        //    //            [menuItem setState:(menuItem.tag == 4)?NSOnState:NSOffState];
        //    //        }
        //            NSData * data = [[NSUserDefaults standardUserDefaults] objectForKey:@"kKMPDFViewModeThemesArray"] ? : nil;
        //            NSInteger themesCount;
        //            if (data) {
        //                NSArray * appArray = [NSKeyedUnarchiver unarchiveObjectWithData:data];
        //                NSMutableArray * mutableArray = [NSMutableArray arrayWithArray:appArray];
        //                themesCount = [menuItem tag] - mutableArray.count;
        //            } else {
        //                themesCount = [menuItem tag] - 4;
        //            }
        //            if (themesCount >= 0) {
        //                menuItem.hidden = YES;
        //                return NO;
        //            } else {
        //                menuItem.hidden = NO;
        //                return YES;
        //            }
        //        } else
        //        if (action == @selector(splitViewAction:)){
        //            if (KMPDFViewSplitModeHorizontal == self.pdfView.viewSplitMode) {
        //                [menuItem setState:(menuItem.tag == 0)?NSOnState:NSOffState];
        //            } else if (KMPDFViewSplitModeVertical == self.pdfView.viewSplitMode) {
        //                [menuItem setState:(menuItem.tag == 1)?NSOnState:NSOffState];
        //            } else if (KMPDFViewSplitModeDisable == self.pdfView.viewSplitMode) {
        //                [menuItem setState:(menuItem.tag == 2)?NSOnState:NSOffState];
        //            }
        //        } else
        if (action == #selector(outlineContextMenuItemClicked_AddEntry) ||
            action == #selector(outlineContextMenuItemClicked_AddChildEntry) ||
            action == #selector(outlineContextMenuItemClicked_AddAuntEntry) ||
            action == #selector(outlineContextMenuItemClicked_RemoveEntry) ||
            action == #selector(outlineContextMenuItemClicked_Edit) ||
            action == #selector(outlineContextMenuItemClicked_SetDestination) ||
            action == #selector(outlineContextMenuItemClicked_Rename) ||
            action == #selector(outlineContextMenuItemClicked_Promote) ||
            action == #selector(outlineContextMenuItemClicked_Demote)) {
            if let data = self.listView.document?.isLocked, data {
                return false
            }
            if (self.isSearchOutlineMode) {
                if (action == #selector(outlineContextMenuItemClicked_AddEntry) ||
                    action == #selector(outlineContextMenuItemClicked_AddChildEntry) ||
                    action == #selector(outlineContextMenuItemClicked_AddAuntEntry) ||
                    action == #selector(outlineContextMenuItemClicked_Edit) ||
                    action == #selector(outlineContextMenuItemClicked_Rename)
                    ) {
                    return false
                }
            }
            if (self.tocOutlineView.selectedRowIndexes.count > 1) {
                if (menuItem.tag == KMOutlineViewMenuItemTag.remove.rawValue) {
                    return true
                }
                return false
            } else if (self.tocOutlineView.selectedRowIndexes.count > 0) {
                if (action == #selector(outlineContextMenuItemClicked_AddChildEntry) ||
                    action == #selector(outlineContextMenuItemClicked_SetDestination)) {
                    return true
                }
            }
            if (self.tocOutlineView.clickedRow == -1) {
                if (action == #selector(outlineContextMenuItemClicked_AddEntry)) {
                    return true
                } else {
                    return false
                }
            } else {
                let clickedOutline = self.tocOutlineView.item(atRow: self.tocOutlineView.clickedRow) as? CPDFOutline
                if let data = clickedOutline?.index, data > 0 {
                    if (action == #selector(outlineContextMenuItemClicked_Demote)) {
                        return true
                    }
                } else {
                    if (action == #selector(outlineContextMenuItemClicked_Demote)) {
                        return false
                    }
                }
                let parentOutLine = clickedOutline?.parent
                let grandparentOutLine = parentOutLine?.parent
                //if clicked PDFOutline 's parent exist
                if (grandparentOutLine != nil) {
                    //and title is equla "add_AuntOutlineKey"
                    if (action == #selector(outlineContextMenuItemClicked_AddAuntEntry)) {
                        return true
                    } else if (action == #selector(outlineContextMenuItemClicked_Promote)){
                        return true
                    }
                } else {
                    if (action == #selector(outlineContextMenuItemClicked_AddAuntEntry)) {
                        return false
                    }else if (action == #selector(outlineContextMenuItemClicked_Promote)){
                        return false
                    }
                }
            }
            return true
        }
//            else
//        if ([menuItem action] == @selector(toggleEncryptFilePanel:)) {
//            [menuItem setTitle:NSLocalizedString(@"Set Passwords", @"Menu item title")];
//            NSURL *fileURL = [self.pdfView.document documentURL];
//            if (!fileURL) {
//                return YES;
//            }
//            PDFDocument *pdfDoc = [[[PDFDocument alloc] initWithURL:fileURL] autorelease];
//
//            if ([pdfDoc isLocked]) {
//                [menuItem setTitle:NSLocalizedString(@"Remove Security", @"Menu item title")];
//            }
//        } else if (action == @selector(toggleToolbarShow:)) {
//            NSToolbar *toolbar = [self.window toolbar];
//            if ([toolbar isVisible])
//                [menuItem setTitle:NSLocalizedString(@"Hide Toolbar", @"Menu item title")];
//            else
//                [menuItem setTitle:NSLocalizedString(@"Show Toolbar", @"Menu item title")];
//            return YES;
//        } else if (action == @selector(readMode:)) {
//            menuItem.state = self.isReadMode ? NSControlStateValueOn : NSControlStateValueOff;
//            return YES;
//        } else if (action == @selector(addForm:)) {
//            return YES;
//        } else if (action == @selector(toggleOutlineCaseInsensitiveSearch:)){
//            [menuItem setState:self.outlineIgnoreCaseFlag?NSControlStateValueOn:NSControlStateValueOff];
//            return YES;
//        } else if (action == @selector(note_expandAllComments:) ||
//                   action == @selector(note_foldAllComments:) ||
//                   action == @selector(exportAnnotationNotes:) ||
//                   action == @selector(leftSideEmptyAnnotationClick_DeleteAnnotation:) ||
//                   action == @selector(removeAllAnnotations:)) {
//            if (@available(macOS 10.13, *)) {
//                if (notes.count == 0) {
//                    return NO;
//                } else {
//                    return YES;
//                }
//            } else {
//                if (action == @selector(note_expandAllComments:) ||
//                    action == @selector(note_foldAllComments:)) {
//                    return NO;
//                }
//            }
//        } else
        if (action == #selector(unfoldNoteAction) ||
            action == #selector(foldNoteAction)) {
            let row = self.noteOutlineView.clickedRow
//            NSArray *noteArr = [rightSideController.noteArrayController arrangedObjects];
//            PDFAnnotation *foldNote = (PDFAnnotation *)noteArr[row];
            let foldNote = self.allAnnotations[row]
            // SKNPDFAnnotationNote
            if foldNote is CPDFMarkupAnnotation || foldNote is CPDFTextAnnotation {
                    return true
                } else {
                    return false
                }
        } else if (action == #selector(menuItemClick_ExportPNG) ||
            action == #selector(menuItemClick_ExportJPG) ||
            action == #selector(menuItemClick_ExportPDF)) {
            if (self.snapshotTableView.selectedRow == -1 ) {
                return false
            } else {
                return true
            }
        }
//        else if (action == @selector(editNoteFromTable:)) {
//            NSInteger row = [rightSideController.noteOutlineView clickedRow];
//            NSArray * noteArr = [rightSideController.noteArrayController arrangedObjects];
//            PDFAnnotation *foldNote = (PDFAnnotation *)noteArr[row];
//            if (@available(macOS 10.13, *)) {
//                if ([foldNote.widgetFieldType isEqualToString:PDFAnnotationWidgetSubtypeSignature]) {
//                    return NO;
//                }
//            }
//            if ([foldNote isKindOfClass:[PDFAnnotationStamp class]] ||
//                [foldNote isKindOfClass:[KMAnnotationStamp class]]) {
//                return NO;
//            } else {
//                return YES;
//            }
//        }
        else if (action == #selector(menuItemClick_SelectAll)) {
            menuItem.state = self.snapshotListIsAllSelected() ? .on : .off
            return true
        }
//        else if (action == @selector(leftSideEmptyAnnotationClick_DeleteOutline:)) {
//            PDFOutline * item = [[pdfView document] outlineRoot];
//            if (self.isSearchOutlineMode) {
//                NSInteger num = 0;
//                for (NSUInteger i = 0; i < [item numberOfChildren]; i++) {
//                    PDFOutline *outline = [item childAtIndex:i];
//                    if ([self hasContainString:self.leftSideController.outlineSearchField.stringValue rootOutline:outline]) {
//                        num ++;
//                    }
//                }
//                if (num > 0)
//                    return YES;
//                else
//                    return NO;
//            } else {
//                if ([item numberOfChildren] > 0)
//                    return YES;
//                else
//                    return NO;
//            }
//        }
        return true
    }
}

// MARK: - NSPopoverDelegate

extension KMLeftSideViewController: NSPopoverDelegate {
    func popoverWillClose(_ notification: Notification) {
        guard let popover = notification.object as? NSPopover else {
            return
        }
        if let vc = popover.contentViewController as? KMOutlineEditViewController {
            self.editOutlineUI(vc)
            self.tocOutlineView.reloadData()
        }
    }
}

// MARK: - NSSearchFieldDelegate

extension KMLeftSideViewController: NSSearchFieldDelegate {
    func controlTextDidChange(_ obj: Notification) {
        if self.outlineSearchField.isEqual(to: obj.object) {
            if (self.outlineSearchField.stringValue.isEmpty == false) {
                self.isSearchOutlineMode = true
                
                self.tocOutlineView.reloadData()
                self.tocOutlineView.expandItem(nil, expandChildren: true)
                self.tocType = .unfold
            } else {
                self.isSearchOutlineMode = false
                self.showSearchOutlineBlankState(false)
                self.tocOutlineView.reloadData()
            }
    //        self.leftSideEmptyVC.addOutlineBtn.enabled = !self.isSearchOutlineMode;
            self.outlineAddButton.isEnabled = !self.isSearchOutlineMode
        } else if self.snapshotSearchField.isEqual(to: obj.object) {
            let searchString = self.snapshotSearchField.stringValue
//            NSPredicate *filterPredicate = nil;
//            if ([searchString length] > 0) {
//                NSExpression *lhs = [NSExpression expressionForConstantValue:searchString];
//                NSExpression *rhs = [NSExpression expressionForKeyPath:@"string"];
//                NSUInteger options = NSDiacriticInsensitivePredicateOption;
//                if (mwcFlags.caseInsensitiveNoteSearch)
//                    options |= NSCaseInsensitivePredicateOption;
//                filterPredicate = [NSComparisonPredicate predicateWithLeftExpression:lhs rightExpression:rhs modifier:NSDirectPredicateModifier type:NSInPredicateOperatorType options:options];
//            }
//            [rightSideController.snapshotArrayController setFilterPredicate:filterPredicate];

//            NSArray * snapshots = [rightSideController.snapshotArrayController arrangedObjects];
            self.searchSnapshots.removeAll()
            if searchString.isEmpty {
                self.isSearchSnapshotMode = false
                self.searchSnapshots = self.snapshots.filter({ model in
                    let data = model.windowC?.string.contains(searchString) ?? false
                    return data
                })
            } else {
                self.isSearchSnapshotMode = true
            }

            var snapshots = self.searchSnapshots
            if self.isSearchSnapshotMode == false {
                snapshots = self.snapshots
            }
            Task { @MainActor in
                self.updataLeftSideSnapView()
                self.snapshotTableView.reloadData()
            }
            if (snapshots.count > 0) {
                self.leftSideEmptyVC.outlineSearchView.removeFromSuperview()
            } else {
                let view = self.snapshotTableView.enclosingScrollView
                let emptyVcSize =  self.leftSideEmptyVC.outlineSearchView.frame.size
                self.leftSideEmptyVC.outlineSearchView.frame = NSMakeRect((view!.frame.size.width-emptyVcSize.width)/2.0,(view!.frame.size.height-emptyVcSize.height)/2.0, emptyVcSize.width, emptyVcSize.height)
                self.leftSideEmptyVC.outlineSearchView.autoresizingMask = [.minXMargin, .maxXMargin, .minYMargin, .maxYMargin]
                self.snapshotTableView.enclosingScrollView?.documentView?.addSubview(self.leftSideEmptyVC.outlineSearchView)
            }
        }
    }
}

// MARK: - NSTextFieldDelegate

extension KMLeftSideViewController: NSTextFieldDelegate {
    func controlTextDidBeginEditing(_ obj: Notification) {
        if self.noteOutlineView.isEqual(to: obj.object) {
//            if (mwcFlags.isEditingTable == NO && mwcFlags.isEditingPDF == NO)
//                [[self document] objectDidBeginEditing:self];
//            mwcFlags.isEditingTable = YES;
        }
    }
    
    func controlTextDidEndEditing(_ obj: Notification) {
        if self.noteOutlineView.isEqual(to: obj.object) {
//            if (mwcFlags.isEditingTable && mwcFlags.isEditingPDF == NO)
//                [[self document] objectDidEndEditing:self];
//            mwcFlags.isEditingTable = NO;
        } else if let data = self.renamePDFOutlineTextField?.isEqual(to: obj.object), data {
            let textField = obj.object as! NSTextField
            if let editPDFOutline = self.renamePDFOutline {
                if self.isRenameNoteOutline == false {
                    if textField.stringValue == editPDFOutline.label {
                        return
                    }
                }
                self.renamePDFOutline(editPDFOutline, label: textField.stringValue)
//                [self updateSelectRowHeight];
                self.tocOutlineView.reloadData()
            }
        }
    }
}