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

//
//  KMLeftSideViewController.swift
//  PDF Master
//
//  Created by lxy on 2022/10/10.
//

import Cocoa

@objc protocol KMLeftSideViewControllerDelegate {
    @objc optional func controlStateChange(_ obj: KMLeftSideViewController,show:Bool)
    @objc optional func enterEditMode(_ obj: KMLeftSideViewController, _ pages: [Int])
    @objc optional func searchAction(searchString:String, isCase:Bool)
    
    @objc optional func controller(_ controller: KMLeftSideViewController, dispayDidChange dispay: KMPDFDisplayType)
    @objc optional func controller(controller: KMLeftSideViewController, itemClick item: Any?, itemKey: KMItemKey, params: Any?)
    
    @objc optional func controller(controller: KMLeftSideViewController, bookMarkDidChange bookMarks: [KMBookMarkItem])
    @objc optional func controller(controller: KMLeftSideViewController, rotateType: KMRotateType)
}

class KMLeftSideViewController: KMSideViewController {
    var dataSource : [KMLeftMethodMode] = [KMLeftMethodMode]()

    var type : KMLeftMethodMode = KMLeftMethodMode()
    var isShowPanel : Bool = false
    var norImage : [String] = []
    var selectImage : [String] = []
    var mainVC: KMMainViewController?
    var selectPages: [Int]?
    open weak var delegate: KMLeftSideViewControllerDelegate?
    
    deinit {
        KMPrint("KMLeftSideViewController deinit.")
        
        NotificationCenter.default.removeObserver(self)
    }
    
    override var nibName: NSNib.Name? {
        return "LeftSideView"
    }
    
    convenience init(type : KMLeftMethodMode) {
        self.init()
        self.type = type
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        DistributedNotificationCenter.default().addObserver(self, selector: #selector(_themeChanged), name: NSApplication.interfaceThemeChangedNotification, object: nil)
    }
    
    func showPanelView(show: Bool) {
        self.isShowPanel = show
        if show {
            self.leftView.segmentedControl.selectedSegment = 0
        } else {
            self.leftView.segmentedControl.selectedSegment = UInt8.max
            self.delegate?.controlStateChange?(self, show: false)
        }
    }
    
    func refreshMethodType(methodType: BotaType) {
        let newType = KMLeftMethodMode()
        var show = true
        if self.type.methodType != methodType {
            newType.methodType = methodType
        }
        if self.type.methodType == methodType {
            show = false
        } else if methodType == .None {
            show = false
        }
        self.type = newType;
        self.delegate?.controlStateChange?(self,show:show)
    }
    
    // MARK: - New
    /*
         NSArrayController *findArrayController;
         NSArrayController *groupedFindArrayController;
     }
     - (void)applySearchTableHeader:(NSString *)message;
     */
    
    @IBOutlet var segmentedControl: KMSegmentedControl!
    
    @IBOutlet var thumbnailTableView: KMThumbnailTableView!
    @IBOutlet var tocOutlineView: KMTocOutlineView!
    @IBOutlet var noteOutlineView: KMNoteOutlineView!
    @IBOutlet var findTableView: KMBotaTableView!
    @IBOutlet var groupedFindTableView: KMBotaTableView!
    @IBOutlet var snapshotTableView: KMBotaTableView!
    
    @IBOutlet weak var leftListView: NSView!
    
    @IBOutlet var searchViewController: KMBotaSearchViewController!
    @IBOutlet weak var toolButtonBox: NSBox!
    @IBOutlet weak var toolButtonBoxLayoutConstraint: NSLayoutConstraint!
    @IBOutlet weak var snapshotNormalView: NSView!
    @IBOutlet weak var snapshotLabel: NSTextField!
    @IBOutlet weak var snapshotNormalMoreButton: NSButton!
    @IBOutlet weak var snapshotNormalSearchButton: NSButton!
    @IBOutlet weak var snapshotNormalZoomOutButton: NSButton!
    @IBOutlet weak var snapshotNormalZoomInButton: NSButton!
    @IBOutlet weak var snapshotSearchZoomOutButton: NSButton!
    @IBOutlet weak var snapshotSearchZoomInButton: NSButton!
    @IBOutlet weak var snapshotSearchField: KMLeftSideViewSearchField!
    @IBOutlet weak var snapshotDoneButton: NSButton!
    
    @IBOutlet weak var outlineView: NSView!
    @IBOutlet weak var outlineMoreButton: NSButton!
    @IBOutlet weak var outlineAddButton: NSButton!
    @IBOutlet weak var outlineSearchButton: NSButton!
    @IBOutlet weak var outlineLabel: NSTextField!
    @IBOutlet weak var outlineSearchField: KMLeftSideViewSearchField!
    @IBOutlet weak var outlineDoneButton: NSButton!
    
    @IBOutlet weak var noteView: NSView!
    @IBOutlet weak var noteMoreButton: NSButton!
    @IBOutlet weak var noteFilterButton: NSButton!
    @IBOutlet weak var noteSearchButton: NSButton!
    @IBOutlet weak var noteSearchField: KMLeftSideViewSearchField!
    @IBOutlet weak var noteTitleLabel: NSTextField!
    @IBOutlet weak var noteHeaderView: NSView!
    @IBOutlet weak var sortTypeBox: KMBox!
    @IBOutlet weak var sortTypeLabel: NSTextField!
    @IBOutlet weak var noteSortButton: NSButton!
    @IBOutlet weak var noteDoneButton: NSButton!
    
    @IBOutlet weak var thumbnailView: NSView!
    @IBOutlet weak var thumbnailZoomOutButton: NSButton!
    @IBOutlet weak var thumbnailZoomInButton: NSButton!
    @IBOutlet weak var thumbnailTitleLabel: NSTextField!
    
    @IBOutlet weak var emptySearchBox: NSBox!
    @IBOutlet weak var emptySearchLabel: NSTextField!
    
    var filterButtonLayer: NSView?
    var moreButtonLayer: KMButtonLayer?
    
    var thumbnails: [KMThumbnail] = []
    var isDisplayPageSize = false
    var thumbnailCacheSize: CGFloat = 32 * 3
    var findState: KMFindState = .content
    var searchResults : [KMSearchMode] = [] {
        didSet {
            self.updataLeftSideFindView()
        }
    }
    var groupSearchResults: [KMSearchMode] = []
    var findPaneState: KMFindPaneState = .singular
    var isSearchOutlineMode = false
    var outlineIgnoreCaseFlag = false
    var noteTypeDict: [String : Any] = [:]
    
    private let MIN_SIDE_PANE_WIDTH: CGFloat = 270
    private let LABEL_COLUMNID = "label"
    var foldType: KMFoldAllAnnotationType = .none
    private let KMLeftSideViewNoteSortTypeKey = "KMLeftSideViewNoteSortTypeKey"
    private let KMLeftSideViewAscendSortBoolKey = "KMLeftSideViewAscendSortBoolKey"
    private let SKDisableTableToolTipsKey = "SKDisableTableToolTips"
    
    var tocType: KMFoldType = .none
    
    var snapshots: [KMSnapshotModel] = []
    
    private var _noteSortType: KMNoteSortType = .none
    var noteSortType: KMNoteSortType {
        get {
            return self._noteSortType
        }
        set {
            self._noteSortType = newValue
            
            NotificationCenter.default.post(name: NSNotification.Name(rawValue: "KMAnnotationSortTypeKeyNotification"), object: self)
        }
    }
    
    var isAscendSort = false {
        didSet {
            NotificationCenter.default.post(name: NSNotification.Name(rawValue: "KMAnnotationSortTypeKeyNotification"), object: self)
        }
    }
    
    lazy var leftSideEmptyVC: KMLeftSideEmptyFileViewController = {
        let vc = KMLeftSideEmptyFileViewController(nibName: "KMLeftSideEmptyFileViewController", bundle: nil)
        vc.view.wantsLayer = true
        return vc
    }()
    
    var preThumbnailRow: Int = 0
    var leftMargin: CGFloat = 0
    
    lazy var leftView: KMBotaLeftView = {
        let view = KMBotaLeftView()
        return view
    }()
    
    private var _copysPages: [CPDFPage] = []
    private var _annotations: [KMBOTAAnnotationSection] = []
    private var _allAnnotations: [CPDFAnnotation] = []
    
    private let kKMPDFViewOutlineDragDataType  = "kKMPDFViewOutlineDragDataType"
    private let KPDFThumbnailDoucumentURLForDraggedTypes  = "KPDFThumbnailDoucumentURLForDraggedTypes"
    
    private var allFoldNotes: [CPDFAnnotation] = []
    
    override func loadView() {
        super.loadView()
        
        self.view.wantsLayer = true
        self.view.layer?.backgroundColor = KMAppearance.Layout.l0Color().cgColor
        
        self.view.addSubview(self.leftView)
        self.leftView.frame = NSMakeRect(0, 0, 44, NSHeight(self.view.frame))
        self.leftView.autoresizingMask = [.height]
        self.leftView.wantsLayer = true
        self.leftView.layer?.backgroundColor = .white
        
        self.outlineView.wantsLayer = true
        self.outlineView.layer?.backgroundColor = KMAppearance.Layout.l0Color().cgColor
        self.noteView.wantsLayer = true
        self.noteView.layer?.backgroundColor = KMAppearance.Layout.l0Color().cgColor
        self.thumbnailView.wantsLayer = true
        self.thumbnailView.layer?.backgroundColor = KMAppearance.Layout.l0Color().cgColor
        self.snapshotNormalView.wantsLayer = true
        self.snapshotNormalView.layer?.backgroundColor = KMAppearance.Layout.l0Color().cgColor
        
        self.tocOutlineView.backgroundColor = KMAppearance.Layout.l0Color()
        self.noteOutlineView.backgroundColor = KMAppearance.Layout.l0Color()
        self.findTableView.backgroundColor = KMAppearance.Layout.l0Color()
        self.groupedFindTableView.backgroundColor = KMAppearance.Layout.l0Color()
        self.snapshotTableView.backgroundColor = KMAppearance.Layout.l0Color()
        self.thumbnailTableView.backgroundColor = KMAppearance.Layout.l0Color()
        
        self.leftListView.wantsLayer = true
        self.leftListView.layer?.backgroundColor = KMAppearance.Layout.l0Color().cgColor
        
        self.emptySearchLabel.stringValue = KMLocalizedString("No Results",nil)
        self.emptySearchLabel.textColor = KMAppearance.Layout.h0Color()
        self.emptySearchBox.isHidden = true
        
        self.thumbnailTitleLabel.stringValue = KMLocalizedString("Thumbnails", nil)
        self.thumbnailTitleLabel.textColor = KMAppearance.Layout.h0Color()
        self.thumbnailZoomInButton.action = #selector(thumbnailSizeScaling)
        self.thumbnailZoomInButton.target = self
        self.thumbnailZoomInButton.tag = 1
        self.thumbnailZoomOutButton.action = #selector(thumbnailSizeScaling)
        self.thumbnailZoomOutButton.target = self
        self.thumbnailZoomOutButton.tag = 0
        
        self.snapshotTableView.delegate = self
        self.snapshotTableView.dataSource = self
        self.snapshotTableView.menu?.delegate = self
        self.snapshotTableView.doubleAction = #selector(toggleSelectedSnapshots)
        self.snapshotTableView.target = self
        self.snapshotTableView.backgroundColor = .clear
//        [snapshotTableView setDraggingSourceOperationMask:NSDragOperationEvery forLocal:NO];
        self.snapshotLabel.stringValue = KMLocalizedString("Snapshots", nil)
        self.snapshotLabel.textColor = KMAppearance.Layout.h0Color()
        self.snapshotNormalZoomInButton.action = #selector(thumbnailSizeScaling)
        self.snapshotNormalZoomInButton.target = self
        self.snapshotNormalZoomInButton.tag = 2
        self.snapshotNormalZoomOutButton.action = #selector(thumbnailSizeScaling)
        self.snapshotNormalZoomOutButton.target = self
        self.snapshotNormalZoomOutButton.tag = 3
        self.snapshotNormalSearchButton.toolTip = KMLocalizedString("Search", nil)
        self.snapshotNormalMoreButton.action = #selector(leftSideViewMoreButtonAction)
        self.snapshotNormalMoreButton.target = self
        self.snapshotNormalMoreButton.tag = 300
        
        self.snapshotSearchZoomInButton.action = #selector(thumbnailSizeScaling)
        self.snapshotSearchZoomInButton.target = self
        self.snapshotSearchZoomInButton.tag = 2
        self.snapshotSearchZoomOutButton.action = #selector(thumbnailSizeScaling)
        self.snapshotSearchZoomOutButton.target = self
        self.snapshotSearchZoomOutButton.tag = 3
        self.snapshotDoneButton.title = KMLocalizedString("Done", nil)
        self.snapshotDoneButton.toolTip = KMLocalizedString("Done", nil)
        self.snapshotDoneButton.setTitleColor(KMAppearance.Layout.w0Color())
        self.snapshotDoneButton.wantsLayer = true
        self.snapshotDoneButton.layer?.backgroundColor = KMAppearance.Interactive.a0Color().cgColor
        self.snapshotDoneButton.layer?.cornerRadius = 4.0
        self.snapshotDoneButton.action = #selector(leftSideViewDoneButtonAction)
        self.snapshotDoneButton.target = self
        self.snapshotDoneButton.tag = 312
        self.snapshotDoneButton.isHidden = true
         
        self.noteOutlineView.autoresizesOutlineColumn = false
        
        self.noteOutlineView.delegate = self
        self.noteOutlineView.dataSource = self
        self.noteOutlineView.botaDelegate = self
        self.noteOutlineView.botaDataSource = self
        self.noteOutlineView.noteDelegate = self
        self.noteOutlineView.menu = NSMenu()
        self.noteOutlineView.menu?.delegate = self
//        [noteOutlineView setTypeSelectHelper:[SKTypeSelectHelper typeSelectHelperWithMatchOption:SKSubstringMatch]];
        self.noteOutlineView.indentationPerLevel = 0
//        [noteOutlineView registerForDraggedTypes:[NSColor readableTypesForPasteboard:[NSPasteboard pasteboardWithName:NSDragPboard]]];
        self.noteOutlineView.target = self
        self.noteOutlineView.doubleAction = #selector(selectSelectedNote)
        
        self.tocOutlineView.menu = NSMenu()
        self.tocOutlineView.menu?.delegate = self
        self.outlineSearchField.delegate = self
        self.snapshotSearchField.backgroundColor = KMAppearance.Layout.l_1Color()
         self.outlineSearchField.backgroundColor = KMAppearance.Layout.l_1Color()
         self.noteSearchField.backgroundColor = KMAppearance.Layout.l_1Color()
         self.snapshotSearchField.wantsLayer = true
         self.outlineSearchField.wantsLayer = true
         self.noteSearchField.wantsLayer = true
        self.snapshotSearchField.layer?.backgroundColor = KMAppearance.Layout.l_1Color().cgColor
         self.outlineSearchField.layer?.backgroundColor = KMAppearance.Layout.l_1Color().cgColor
         self.noteSearchField.layer?.backgroundColor = KMAppearance.Layout.l_1Color().cgColor
         self.snapshotSearchField.layer?.borderWidth = 1.0
         self.outlineSearchField.layer?.borderWidth = 1.0
         self.noteSearchField.layer?.borderWidth = 1.0
        self.snapshotSearchField.layer?.borderColor = KMAppearance.Interactive.a0Color().cgColor
         self.outlineSearchField.layer?.borderColor = KMAppearance.Interactive.a0Color().cgColor
         self.noteSearchField.layer?.borderColor = KMAppearance.Interactive.a0Color().cgColor
        
//        __block typeof(self) blockSelf = self;
//        _snapshotSearchField.changeCallBack = ^(NSString *changeContent) {
//            NSString *editContent = @"";
//            if (changeContent) {
//                editContent = changeContent;
//            }
//            [blockSelf.mainController searchFieldChangeAction:editContent];
//        };
        self.snapshotSearchField.isHidden = true
        self.snapshotSearchZoomOutButton.isHidden = true
        self.snapshotSearchZoomInButton.isHidden = true
    //    _snapshotSearchField.endEditCallBack = ^(BOOL isEndEdit) {
    //        if (isEndEdit/* && searchViewController.segmentedControl.segmentCount == 3*/) {
    //            _snapshotSearchField.hidden = YES;
    //            _snapshotSearchZoomOutButton.hidden = YES;
    //            _snapshotSearchZoomInButton.hidden = YES;
    //            _snapshotLabel.hidden = NO;
    //            _snapshotNormalZoomOutButton.hidden = NO;
    //            _snapshotNormalZoomInButton.hidden = NO;
    //        }
    //    };
        self.thumbnailZoomInButton.toolTip = KMLocalizedString("Zoom In", nil)
        self.snapshotNormalZoomInButton.toolTip = KMLocalizedString("Zoom In", nil)
        self.snapshotSearchZoomInButton.toolTip = KMLocalizedString("Zoom In", nil)
        self.thumbnailZoomOutButton.toolTip = KMLocalizedString("Zoom Out", nil)
        self.snapshotNormalZoomOutButton.toolTip = KMLocalizedString("Zoom Out", nil)
        self.snapshotSearchZoomOutButton.toolTip = KMLocalizedString("Zoom Out", nil)
        
        self.outlineLabel.stringValue = KMLocalizedString("Outline", nil);
        self.outlineLabel.textColor = KMAppearance.Layout.h0Color()
        self.outlineAddButton.toolTip = KMLocalizedString("Add Item", nil)
        self.outlineAddButton.action = #selector(outlineContextMenuItemClicked_AddEntry)
        self.outlineAddButton.target = self
        self.outlineSearchButton.toolTip = KMLocalizedString("Search", nil)
        self.outlineMoreButton.action = #selector(leftSideViewMoreButtonAction)
        self.outlineMoreButton.target = self
        self.outlineMoreButton.tag = 302
        self.outlineDoneButton.title = KMLocalizedString("Done", nil);
        self.outlineDoneButton.toolTip = KMLocalizedString("Done", nil);
        self.outlineDoneButton.setTitleColor(KMAppearance.Layout.w0Color())
        self.outlineDoneButton.wantsLayer = true
        self.outlineDoneButton.layer?.backgroundColor = KMAppearance.Interactive.a0Color().cgColor
        self.outlineDoneButton.layer?.cornerRadius = 4.0
        self.outlineDoneButton.action = #selector(leftSideViewDoneButtonAction)
        self.outlineDoneButton.target = self
        self.outlineDoneButton.tag = 310
        self.outlineDoneButton.isHidden = true
        self.outlineSearchField.isHidden = true
    //    _outlineSearchField.endEditCallBack = ^(BOOL isEndEdit) {
    //        if (isEndEdit) {
    //            _outlineSearchField.hidden = YES;
    //            _outlineLabel.hidden = NO;
    //            _outlineSearchButton.hidden = NO;
    //        }
    //    };
        let menuOutline = NSMenu()
        menuOutline.addItem(title: KMLocalizedString("Ignore Case", "Menu item title"), action: #selector(toggleOutlineCaseInsensitiveSearch), target: self)
        (self.outlineSearchField.cell as? NSSearchFieldCell)?.searchMenuTemplate = menuOutline
        (self.outlineSearchField.cell as? NSSearchFieldCell)?.placeholderString = KMLocalizedString("Search Outline", nil)
        self.outlineSearchField.target = self
        
        let sud = UserDefaults.standard
        self.noteTitleLabel.stringValue = KMLocalizedString("Notes", nil);
        self.noteTitleLabel.textColor = KMAppearance.Layout.h0Color()
        self.noteMoreButton.action = #selector(leftSideViewMoreButtonAction)
        self.noteMoreButton.target = self
        self.noteMoreButton.tag = 304
        self.noteMoreButton.wantsLayer = true
        self.moreButtonLayer = KMButtonLayer()
        self.noteMoreButton.layer?.addSublayer(self.moreButtonLayer!)
        self.moreButtonLayer?.frame = CGRectMake(0, 0, CGRectGetWidth(self.noteMoreButton.bounds), CGRectGetHeight(self.noteMoreButton.bounds))
        self.moreButtonLayer?.layerType = .none
        self.moreButtonLayer?.isHidden = true
        
        self.noteFilterButton.action = #selector(noteFilterAction)
        self.noteFilterButton.target = self
        self.noteFilterButton.toolTip = KMLocalizedString("Sort", nil)
        self.noteFilterButton.wantsLayer = true
        self.filterButtonLayer = NSView()
        self.noteFilterButton.addSubview(self.filterButtonLayer!)
        self.filterButtonLayer?.frame = CGRectMake(14, 2, 8, 8)
        self.filterButtonLayer?.isHidden = true
        self.filterButtonLayer?.wantsLayer = true
        self.filterButtonLayer?.layer?.backgroundColor = KMAppearance.Interactive.a0Color().cgColor
        self.filterButtonLayer?.layer?.cornerRadius = 4.0
        
        self.noteDoneButton.title = KMLocalizedString("Done", nil)
        self.noteDoneButton.toolTip = KMLocalizedString("Done", nil)
        self.noteDoneButton.setTitleColor(KMAppearance.Layout.w0Color())
        self.noteDoneButton.wantsLayer = true
        self.noteDoneButton.layer?.backgroundColor = KMAppearance.Interactive.a0Color().cgColor
        self.noteDoneButton.layer?.cornerRadius = 4.0
        self.noteDoneButton.action = #selector(leftSideViewDoneButtonAction)
        self.noteDoneButton.target = self
        self.noteDoneButton.tag = 311
        self.noteDoneButton.isHidden = true
        
        self.noteSearchButton.toolTip = KMLocalizedString("Search", nil)
        self.noteSearchField.delegate = self
        self.noteSearchField.isHidden = true
        self.noteSearchField.endEditCallBack = { [unowned self] isEndEdit in
            if (isEndEdit) {
                self.noteSearchField.isHidden = true
                self.noteSearchButton.isHidden = false
                self.noteTitleLabel.isHidden = false
            }
        };
        self.noteHeaderView.wantsLayer = true
        self.noteHeaderView.layer?.backgroundColor = KMAppearance.Else.textTagColor().cgColor
        self.noteHeaderView.layer?.cornerRadius = 1.0
        let sortType = sud.integer(forKey: KMLeftSideViewNoteSortTypeKey)
        if (sortType == 1) {
            self.noteSortType = KMNoteSortType(rawValue: sortType)!
            if (self.noteSortType == .time) {
                self.sortTypeLabel.stringValue = KMLocalizedString("Time", nil)
                self.sortTypeBox.toolTip = KMLocalizedString("Time", nil)
            } else if (self._noteSortType == .page) {
                self.sortTypeLabel.stringValue = KMLocalizedString("Page", nil)
                self.sortTypeBox.toolTip = KMLocalizedString("Page", nil)
            }
        } else {
            self.noteSortType = .time
            self.sortTypeLabel.stringValue = KMLocalizedString("Time", nil)
        }
        self.sortTypeLabel.textColor = KMAppearance.Layout.h1Color()
        
        self.isAscendSort = sud.bool(forKey: KMLeftSideViewAscendSortBoolKey)
        if (self.isAscendSort) {
            self.noteSortButton.image = NSImage(named: KMImageNameBtnSidebarRankReverse)
            self.noteSortButton.toolTip = KMLocalizedString("ascending sort", nil)
        } else {
            self.noteSortButton.image = NSImage(named: KMImageNameBtnSidebarRankPositive)
            self.noteSortButton.toolTip = KMLocalizedString("descending sort", nil)
        }
        
        self.sortTypeBox.downCallback = { [unowned self] downEntered, mouseBox, _ in
            if (downEntered) {
                let menu = NSMenu()
                let timeItem = menu.addItem(title: KMLocalizedString("Time", nil), action: #selector(sortTypeAction), target: self)
                timeItem?.representedObject = self
                timeItem?.tag = 0
                let pageItem = menu.addItem(title: KMLocalizedString("Page", nil), action: #selector(sortTypeAction), target: self)
                pageItem?.representedObject = self
                timeItem?.tag = 1
                if (self.noteSortType == .time) {
                    timeItem?.state = .on
                    pageItem?.state = .off
                } else if (self.noteSortType == .page) {
                    timeItem?.state = .off
                    pageItem?.state = .on
                }
                menu.popUp(positioning: nil, at: CGPointMake(-10, 0), in: self.sortTypeBox)
            }
        }
        
        self.searchViewController.loadView()
        self.searchViewController.contentView = self.findTableView.enclosingScrollView
        self.searchField = self.searchViewController.searchField
            
        self.searchViewController.segmentedControl.setSegmentCount(2, with: 25)
        self.searchViewController.segmentedControl.setImage(NSImage(named: KMImageNameUXIconBtnSidebarListNor)!, for: 0)
        self.searchViewController.segmentedControl.setImage(NSImage(named: KMImageNameUXIconBtnSidebarPageNor)!, for: 1)
        self.searchViewController.segmentedControl.setToolTip(KMLocalizedString("Separate search results", nil), for: 0)
        self.searchViewController.segmentedControl.setToolTip(KMLocalizedString("Group search results by page", nil), for: 1)
        self.searchViewController.segmentedControl.isBackgroundHighlighted = true
        self.searchViewController.segmentedControl.selectedSegment = 0
        self.searchViewController.segmentedControl.block = { [unowned self] segIndex in
            if segIndex == 0 {
                self.findPaneState = .singular
                self.displayFindViewAnimating(false)
            } else {
                self.findPaneState = .grouped
                self.displayGroupedFindViewAnimating(false)
            }
        }
        self.leftView.segmentedControl.block = { [unowned self] segIndex in
            self.toolButtonBox.isHidden = false
            self.toolButtonBoxLayoutConstraint.constant = 40.0
            
            if (segIndex == 0) {
                if self.type.methodType == .Thumbnail {
                    self.leftView.segmentedControl.selectedSegment = UInt8.max
                    self.refreshMethodType(methodType: .None)
                    return
                }
                
                self.refreshMethodType(methodType: .Thumbnail)
                DispatchQueue.main.async {
                    self.toolButtonBox.contentView = self.thumbnailView
                    self.displayThumbnailViewAnimating(false)
                }
            } else if (segIndex == 1) {
                if self.type.methodType == .Outline {
                    self.leftView.segmentedControl.selectedSegment = UInt8.max
                    self.refreshMethodType(methodType: .None)
                    return
                }
                
                self.refreshMethodType(methodType: .Outline)
                DispatchQueue.main.async {
                    self.toolButtonBox.contentView = self.outlineView
                    self.displayTocViewAnimating(false)
                }
            } else if (segIndex == 2) {
                if self.type.methodType == .Annotation {
                    self.leftView.segmentedControl.selectedSegment = UInt8.max
                    self.refreshMethodType(methodType: .None)
                    return
                }
                
                self.refreshMethodType(methodType: .Annotation)
                DispatchQueue.main.async {
                    self.toolButtonBox.contentView = self.noteView
                    self.displayNoteViewAnimating(false)
                }
            } else if (segIndex == 3) {
                self.toolButtonBox.contentView = self.snapshotNormalView
                self.displaySnapshotViewAnimating(false)
                self.updataLeftSideSnapView()
            } else if (segIndex == 4) {
                if self.type.methodType == .Search {
                    self.leftView.segmentedControl.selectedSegment = UInt8.max
                    self.refreshMethodType(methodType: .None)
                    return
                }
                
                self.refreshMethodType(methodType: .Search)
                DispatchQueue.main.async {
                    self.toolButtonBox.isHidden = true
                    self.toolButtonBoxLayoutConstraint.constant = 0
                    self.displayFindViewAnimating(false)
                }
            }
        }
        
//        self.button.setHelp(KMLocalizedString("View Thumbnails", "Tool tip message"), for: KMLeftSidePaneState.thumbnail.rawValue)
//        self.button.setHelp(KMLocalizedString("View Outline", "Tool tip message"), for: KMLeftSidePaneState.outline.rawValue)
//        self.alternateButton.setHelp(KMLocalizedString("Separate search results", "Tool tip message"), for: KMFindPaneState.singular.rawValue)
//        self.alternateButton.setHelp(KMLocalizedString("Group search results by page", "Tool tip message"), for: KMFindPaneState.grouped.rawValue)
        
//        NSMenu *menu = [NSMenu menu];
//        [menu addItemWithTitle:NSLocalizedString(@"Whole Words Only", @"Menu item title") action:@selector(toggleWholeWordSearch:) target:mainController];
//        [menu addItemWithTitle:NSLocalizedString(@"Ignore Case", @"Menu item title") action:@selector(toggleCaseInsensitiveSearch:) target:mainController];
//        [[searchField cell] setSearchMenuTemplate:menu];
//        [[searchField cell] setPlaceholderString:NSLocalizedString(@"Search PDF", @"placeholder")];
        
        self.searchField.action = #selector(search)
        self.searchField.target = self
        
        self.tocOutlineView.autoresizesOutlineColumn = false
        self.tocOutlineView.allowsMultipleSelection = true
        self.tocOutlineView.allowsEmptySelection = true
        self.tocOutlineView.delegate = self
        self.tocOutlineView.dataSource = self
        self.tocOutlineView.botaDelegate = self
        self.tocOutlineView.botaDataSource = self
        self.tocOutlineView.tocDelegate = self
        
        self.thumbnailTableView.delegate = self
        self.thumbnailTableView.dataSource = self
        self.thumbnailTableView.thumbDelegate = self
        self.thumbnailTableView.allowsMultipleSelection = true
        self.findTableView.delegate = self
        self.findTableView.dataSource = self
        self.findTableView.botaDelegate = self
        self.groupedFindTableView.delegate = self
        self.groupedFindTableView.dataSource = self
        self.groupedFindTableView.botaDelegate = self
        self.thumbnailTableView.menu?.delegate = self
        self.findTableView.menu?.delegate = self
        self.groupedFindTableView.menu?.delegate = self
        
        self.tocOutlineView.doubleAction = #selector(goToSelectedOutlineItem)
        self.tocOutlineView.target = self
        self.findTableView.doubleAction = #selector(goToSelectedFindResults)
        self.findTableView.target = self
        self.groupedFindTableView.doubleAction = #selector(goToSelectedFindResults)
        self.groupedFindTableView.target = self
        
//        [thumbnailTableView setTypeSelectHelper:[SKTypeSelectHelper typeSelectHelperWithMatchOption:SKFullStringMatch]];
//        //支持拖拽的文字类型
//        [thumbnailTableView registerForDraggedTypes:@[KPDFThumbnailLocalForDraggedTypes,NSFilenamesPboardType]];
//        self.thumbnailTableView.registerForDraggedTypes([.localDraggedTypes, .fileURL])
        self.thumbnailTableView.registerForDraggedTypes([.localDraggedTypes, .fileURL,.string,.pdf])
//        self.thumbnailTableView.registerForDraggedTypes(NSFilePromiseReceiver.readableDraggedTypes.map { NSPasteboard.PasteboardType($0) })
//        self.thumbnailTableView.setDraggingSourceOperationMask([.copy, .delete], forLocal: true)
//        [tocOutlineView setTypeSelectHelper:[SKTypeSelectHelper typeSelectHelperWithMatchOption:SKSubstringMatch]];
//        [tocOutlineView registerForDraggedTypes:[NSArray arrayWithObject:kKMPDFViewOutlineDragDataType]];
//        [[[findTableView tableColumnWithIdentifier:PAGE_COLUMNID] headerCell] setTitle:NSLocalizedString(@"Page", @"Table header title")];
//        [[[groupedFindTableView tableColumnWithIdentifier:PAGE_COLUMNID] headerCell] setTitle:NSLocalizedString(@"Page", @"Table header title")];
//        [[[groupedFindTableView tableColumnWithIdentifier:RELEVANCE_COLUMNID] dataCell] setEnabled:NO];
        
        self.thumbnailTableView.selectionHighlightStyle = .none
        
//        NSSortDescriptor *countDescriptor = [[[NSSortDescriptor alloc] initWithKey:SKGroupedSearchResultCountKey ascending:NO] autorelease];
//        [groupedFindArrayController setSortDescriptors:[NSArray arrayWithObjects:countDescriptor, nil]];
//
//        self.thumbnailTableView.setDraggingSourceOperationMask(.every, forLocal: false)
        
        if UserDefaults.standard.bool(forKey: SKDisableTableToolTipsKey) == false {
            self.tocOutlineView.hasImageToolTips = true
            self.findTableView.hasImageToolTips = true
            self.groupedFindTableView.hasImageToolTips = true
        }
        self._updateViewColor()
    }
    
    func displayThumbnailViewAnimating(_ animate: Bool) {
        self.replaceSideView(self.thumbnailTableView.enclosingScrollView!, animate: animate)
        
        var frame = self.thumbnailTableView.enclosingScrollView?.frame ?? .zero
        frame.origin.y = 0
        frame.origin.x = self.leftMargin
        frame.size.height = self.thumbnailTableView.enclosingScrollView?.superview?.frame.size.height ?? 0
        self.thumbnailTableView.enclosingScrollView?.frame = frame
        
        self.resetThumbnails()
        
        frame = self.noteOutlineView.enclosingScrollView?.frame ?? .zero
        frame.origin.y = 0
        frame.origin.x = self.leftMargin
        frame.size.height = self.noteOutlineView.enclosingScrollView?.superview?.frame.size.height ?? 0
        self.noteOutlineView.enclosingScrollView?.frame = frame
        
        frame = self.snapshotTableView.enclosingScrollView?.frame ?? .zero
        frame.origin.y = 0
        frame.origin.x = self.leftMargin
        frame.size.height = self.snapshotTableView.enclosingScrollView?.superview?.frame.size.height ?? 0
        self.snapshotTableView.enclosingScrollView?.frame = frame
        
//        [self updateThumbnailSelection];
    }
    
    func displayFindViewAnimating(_ animate: Bool) {
        self.replaceSideView(self.searchViewController.view, animate: animate)
        if (self.findState != .content) {
            self.findState = .content
        } else {
            self.displayFindState()
        }
        
        var frame = self.searchViewController.view.frame
        frame.origin.y = 0
        frame.size.height = self.searchViewController.view.superview?.frame.size.height ?? .zero
        self.searchViewController.view.frame = frame
        
        frame = self.noteOutlineView.enclosingScrollView?.frame ?? .zero
        frame.origin.y = 0
        frame.size.height = self.noteOutlineView.enclosingScrollView?.superview?.frame.size.height ?? 0
        self.noteOutlineView.enclosingScrollView?.frame = frame
        
        frame = self.snapshotTableView.enclosingScrollView?.frame ?? .zero
        frame.origin.y = 0
        frame.size.height = self.snapshotTableView.enclosingScrollView?.superview?.frame.size.height ?? 0
        self.snapshotTableView.enclosingScrollView?.frame = frame
        self.leftSideEmptyVC.emptySnapView.removeFromSuperview()
        
        self.updataLeftSideSnapView()
    }
    
    func displayFindState() {
        if (self.findState == .content) {
            self.displayFind()
        } else if (self.findState == .note) {
            self.displayNoteFind()
        } else if (self.findState == .snapshot) {
            self.displaySnapshotFind()
        }
    }
    
    func updataLeftSideSnapView() {
        if (snapshots.count < 1) {
            self.snapshotNormalSearchButton.isEnabled = false
    //        leftSideController.snapshotSearchZoomOutButton.enabled = NO;
            self.snapshotNormalZoomOutButton.isEnabled = false
    //        leftSideController.snapshotSearchZoomInButton.enabled = NO;
            self.snapshotNormalZoomInButton.isEnabled = false
            self.snapshotNormalMoreButton.isEnabled = false
            
            self.leftSideEmptyVC.deleteSnapBtn.isEnabled = false
            self.leftSideEmptyVC.exportSnapBtn.isEnabled = false
            self.leftSideEmptyVC.printSnapBtn.isEnabled = false
            self.snapshotTableView.usesAlternatingRowBackgroundColors = false
            let view = self.snapshotTableView.enclosingScrollView!
            let emptyVcSize =  self.leftSideEmptyVC.emptySnapView.frame.size
            self.leftSideEmptyVC.emptySnapView.frame = NSMakeRect((view.frame.size.width-emptyVcSize.width)/2.0,(view.frame.size.height-emptyVcSize.height)/2.0, emptyVcSize.width, emptyVcSize.height);
            self.leftSideEmptyVC.emptySnapView.autoresizingMask = [.minXMargin, .maxXMargin, .minYMargin, .maxYMargin]
            self.snapshotTableView.enclosingScrollView?.documentView?.addSubview(self.leftSideEmptyVC.emptySnapView)
        } else {
            self.snapshotNormalSearchButton.isEnabled = true
    //        leftSideController.snapshotSearchZoomOutButton.enabled = YES;
            self.snapshotNormalZoomOutButton.isEnabled = true
    //        leftSideController.snapshotSearchZoomInButton.enabled = YES;
            self.snapshotNormalZoomInButton.isEnabled = true
            self.snapshotNormalMoreButton.isEnabled = true

            self.leftSideEmptyVC.emptySnapView.removeFromSuperview()
            self.leftSideEmptyVC.deleteSnapBtn.isEnabled = true
            self.leftSideEmptyVC.exportSnapBtn.isEnabled = true
            self.leftSideEmptyVC.printSnapBtn.isEnabled = true
        }
    }
    
    func updataLeftSideFindView() {
        if (self.findState != .content) {
            return
        }
        if (self.searchResults.count > 0) {
            self.searchViewController.emptyBox.isHidden = true
            self.searchViewController.searchResultsView.isHidden = false
            self.searchViewController.searchResultsLabel.stringValue = String(format: KMLocalizedString("%ld Results", "Message in search table header"), self.searchResults.count)
        } else {
            self.searchViewController.emptyBox.isHidden = false
            self.searchViewController.searchResultsView.isHidden = true
        }
    }
    
    func displayGroupedFindViewAnimating(_ animate: Bool) {
        self.replaceSideView(self.searchViewController.view , animate: animate)
        if (self.findState != .content) {
            self.findState = .content
        } else {
            self.displayFindState()
        }
        
        var frame = self.searchViewController.view.frame
        frame.origin.y = 0
        frame.size.height = self.searchViewController.view.superview?.frame.size.height ?? 0
        self.searchViewController.view.frame = frame
        
        frame = self.noteOutlineView.enclosingScrollView?.frame ?? .zero
        frame.origin.y = 0
        frame.size.height = self.noteOutlineView.enclosingScrollView?.superview?.frame.size.height ?? 0
        self.noteOutlineView.enclosingScrollView?.frame = frame
        
        frame = self.snapshotTableView.enclosingScrollView?.frame ?? .zero
        frame.origin.y = 0
        frame.size.height = self.snapshotTableView.enclosingScrollView?.superview?.frame.size.height ?? 0
        self.snapshotTableView.enclosingScrollView?.frame = frame
        
        self.updataLeftSideSnapView()
    }
    
    func displayNoteViewAnimating(_ animate: Bool) {
        self.reloadAnnotation()
        
        self.searchViewController.contentView = nil
        self.replaceSideView(self.noteOutlineView.enclosingScrollView!, animate: animate)
        if (self.findState != .note) {
            self.findState = .note
        } else {
            self.displayFindState()
        }
        
        var frame = self.noteOutlineView.enclosingScrollView?.frame ?? .zero
        frame.origin.y = 0
        frame.size.height = self.noteOutlineView.enclosingScrollView?.superview?.frame.size.height ?? 0
        self.noteOutlineView.enclosingScrollView?.frame = frame
        
        frame = self.noteOutlineView.enclosingScrollView?.frame ?? .zero
        frame.origin.y = 0
        frame.size.height = self.noteOutlineView.enclosingScrollView?.superview?.frame.size.height ?? 0
        self.noteOutlineView.enclosingScrollView?.frame = frame
            
        frame = self.snapshotTableView.enclosingScrollView?.frame ?? .zero
        frame.origin.y = 0
        frame.size.height = self.snapshotTableView.enclosingScrollView?.superview?.frame.size.height ?? 0
        self.snapshotTableView.enclosingScrollView?.frame = frame
            
        let view = self.noteOutlineView.enclosingScrollView!
        let emptyVcSize =  self.leftSideEmptyVC.emptyAnnotationView.frame.size
        self.leftSideEmptyVC.emptyAnnotationView.frame = NSMakeRect((view.frame.size.width-emptyVcSize.width)/2.0,(view.frame.size.height-emptyVcSize.height)/2.0, emptyVcSize.width, emptyVcSize.height)
        
        DispatchQueue.main.async {
            self.noteOutlineView.reloadData()
        }
    }
    
    func displaySnapshotViewAnimating(_ animate: Bool) {
        self.searchViewController.contentView = nil
        self.replaceSideView(self.snapshotTableView.enclosingScrollView!, animate: animate)
        if (self.findState != .snapshot) {
            self.findState = .snapshot;
        } else {
            self.displayFindState()
        }
        
        var frame = self.snapshotTableView.enclosingScrollView?.frame ?? .zero
        frame.origin.y = 0
        frame.size.height = self.snapshotTableView.enclosingScrollView?.superview?.frame.size.height ?? 0
        self.snapshotTableView.enclosingScrollView?.frame = frame
        
//        frame = rightSideController.noteOutlineView.enclosingScrollView.frame;
//        frame.origin.y = 0;
//        frame.size.height = rightSideController.noteOutlineView.enclosingScrollView.superview.frame.size.height;
//        rightSideController.noteOutlineView.enclosingScrollView.frame = frame;
        
        frame = self.tocOutlineView.enclosingScrollView?.frame ?? .zero
        frame.origin.y = 0
        frame.size.height = self.tocOutlineView.enclosingScrollView?.superview?.frame.size.height ?? 0
        self.tocOutlineView.enclosingScrollView?.frame = frame
        
//        [self updateSnapshotsIfNeeded];
        Task { @MainActor in
            self.snapshotTableView.reloadData()
        }
    }
    
    func displayFind() {
        self.searchField = self.searchViewController.searchField
        
        let menu = NSMenu()
        _ = menu.addItem(title: KMLocalizedString("Whole Words Only", "Menu item title"), action: #selector(toggleWholeWordSearch), target: self)
        _ = menu.addItem(title: KMLocalizedString("Ignore Case", "Menu item title"), action: #selector(toggleCaseInsensitiveSearch), target: self)
        (self.searchViewController.searchField.cell as? NSSearchFieldCell)?.searchMenuTemplate = menu
        (self.searchViewController.searchField.cell as? NSSearchFieldCell)?.placeholderString = KMLocalizedString("Search PDF", "placeholder")
        self.searchViewController.searchField.action = #selector(search)
        self.searchViewController.searchField.target = self

        if (self.findPaneState == .singular) {
            self.searchViewController.contentView = self.findTableView.enclosingScrollView
            
            self.findTableView.wantsLayer = true
            self.findTableView.layer?.backgroundColor = NSColor.red.cgColor
            DispatchQueue.main.async {
                self.findTableView.reloadData()
            }
        } else if (self.findPaneState == .grouped) {
            self.searchViewController.contentView = self.groupedFindTableView.enclosingScrollView
            var array = KMSearchMode.sortSearchResult(results: self.searchResults)
            array.sort(){$0.datas.count > $1.datas.count}
            self.groupSearchResults = array
            self.groupedFindTableView.reloadData()
        }
    }
    
    func displayTocViewAnimating(_ animate: Bool) {
        self.replaceSideView(self.tocOutlineView.enclosingScrollView!, animate: animate)
        
        var frame = self.tocOutlineView.enclosingScrollView?.frame ?? .zero
        frame.origin.y = 0
        frame.size.height = self.tocOutlineView.enclosingScrollView?.superview?.frame.size.height ?? 0
        self.tocOutlineView.enclosingScrollView?.frame = frame
            
        frame = self.noteOutlineView.enclosingScrollView?.frame ?? .zero
        frame.origin.y = 0
        frame.size.height = self.noteOutlineView.enclosingScrollView?.superview?.frame.size.height ?? 0
        self.noteOutlineView.enclosingScrollView?.frame = frame
        
        frame = self.snapshotTableView.enclosingScrollView?.frame ?? .zero
        frame.origin.y = 0
        frame.size.height = self.snapshotTableView.enclosingScrollView?.superview?.frame.size.height ?? 0
        self.snapshotTableView.enclosingScrollView?.frame = frame
        
//        [self updateOutlineSelection];
        
        let view = self.tocOutlineView.enclosingScrollView!
        let emptyVcSize =  self.leftSideEmptyVC.emptyOutlineView.frame.size
        
        self.leftSideEmptyVC.emptyOutlineView.frame = NSMakeRect((view.frame.size.width-emptyVcSize.width)/2.0,(view.frame.size.height-emptyVcSize.height)/2.0, emptyVcSize.width, emptyVcSize.height);
        
        DispatchQueue.main.async {
            self.tocOutlineView.reloadData()
        }
    }
    
    override func requiresAlternateButton(forView aview: NSView?) -> Bool {
        return false
    }
    
    func displayNoteFind() {
        self.searchField = self.noteSearchField
        
        let menu = NSMenu()
        _ = menu.addItem(title: KMLocalizedString("Ignore Case", "Menu item title"), action: #selector(toggleCaseInsensitiveNoteSearch), target: self)
        (self.noteSearchField.cell as? NSSearchFieldCell)?.searchMenuTemplate = menu
        (self.noteSearchField.cell as? NSSearchFieldCell)?.placeholderString = KMLocalizedString("Search Notes", "placeholder")
        self.noteSearchField.action = #selector(searchNotes)
        self.noteSearchField.target = self
    }
    
    func displaySnapshotFind() {
        self.searchField = self.snapshotSearchField;
        
        let menu = NSMenu()
        _ = menu.addItem(title: KMLocalizedString("Ignore Case", "Menu item title"), action: #selector(toggleCaseInsensitiveNoteSearch), target: self)
        (self.snapshotSearchField.cell as? NSSearchFieldCell)?.searchMenuTemplate = menu
        (self.snapshotSearchField.cell as? NSSearchFieldCell)?.placeholderString = KMLocalizedString("Search Snapshots", "placeholder")
        self.snapshotSearchField.action = #selector(searchNotes)
        self.snapshotSearchField.target = self
        self.snapshotSearchField.delegate = self
    }
    
    /*
     - (void)applySearchTableHeader:(NSString *)message {
         [[[findTableView tableColumnWithIdentifier:RESULTS_COLUMNID] headerCell] setStringValue:message];
         [[findTableView headerView] setNeedsDisplay:YES];
         [[[groupedFindTableView tableColumnWithIdentifier:RELEVANCE_COLUMNID] headerCell] setStringValue:message];
         [[groupedFindTableView headerView] setNeedsDisplay:YES];
     }
     */
    
    @IBAction func search(_ sender: NSSearchField) {
        self.delegate?.searchAction?(searchString: sender.stringValue, isCase: false)
    }
    
    @IBAction func snapshotNormalSearchButtonAction(_ sender: NSButton) {
        self.snapshotSearchField.isHidden = false
    //    _snapshotSearchZoomOutButton.hidden = YES;
        self.snapshotSearchZoomInButton.isHidden = true
        self.snapshotNormalSearchButton.isHidden = true
        self.snapshotDoneButton.isHidden = false
        self.snapshotLabel.isHidden = true
        self.snapshotNormalZoomOutButton.isHidden = true
        self.snapshotNormalZoomInButton.isHidden = true
        
        self.snapshotSearchField.becomeFirstResponder()
    }
    
    func resetThumbnails() {
//        [self willChangeValueForKey:THUMBNAILS_KEY];
//        self.thumbnailCacheSize = 160
        self.thumbnails.removeAll()
        let pageLabels = self.listView.document.pageLabels()
        if (pageLabels.isEmpty == false) {
            let isLocked = self.listView.document.isLocked
            let firstPage = self.listView.document.page(at: 0)
            let emptyPage = CPDFPage()
            let firstFrame = firstPage?.bounds(for: .cropBox) ?? .zero
            let firstFrame2 = firstPage?.bounds(for: .mediaBox) ?? .zero
            emptyPage.setBounds(firstFrame, for: .cropBox)
            emptyPage.setBounds(firstFrame2, for: .mediaBox)
            emptyPage.rotation = firstPage?.rotation ?? 0
            
            let pageImage = firstPage!.thumbnail(of: NSMakeSize(self.thumbnailCacheSize, self.thumbnailCacheSize))
//            NSImage * = [emptyPage thumbnailWithSize:thumbnailCacheSize forBox:[pdfView displayBox]];
            var rect: NSRect = .zero
            rect.size = pageImage?.size ?? .zero
            let width = 1.2 * fmin(NSWidth(rect), NSHeight(rect))
            rect = NSInsetRect(rect, 0.5 * (NSWidth(rect) - width), 0.5 * (NSHeight(rect) - width));
            
            pageImage?.lockFocus()
//            NSImage(named: NSImage.applicationIconName)?.draw(in: rect, from: .zero, operation: .sourceOver, fraction: 0.5)
            if (isLocked) {
                NSWorkspace.shared.icon(forFileType: NSFileTypeForHFSTypeCode(OSType(kLockedBadgeIcon))).draw(in: rect, from: .zero, operation: .sourceOver, fraction: 0.5)
                //                [[[NSWorkspace sharedWorkspace] iconForFileType:NSFileTypeForHFSTypeCode(kLockedBadgeIcon)] drawInRect:rect fromRect:NSZeroRect operation:NSCompositingOperationSourceOver fraction:0.5];
            }
            pageImage?.unlockFocus()
            
            for (i, label) in pageLabels.enumerated() {
                let firstPage = self.listView.document.page(at: UInt(i))
                let size = NSMakeSize(self.thumbnailCacheSize, self.thumbnailCacheSize)
//                let pageImage = firstPage!.thumbnail(of: size)
                let thumbnail = KMThumbnail(image: nil, label: label, pageIndex: i)
                //                thumbnail.delegate = self
                thumbnail.dirty = true
                self.thumbnails.append(thumbnail)
            }
        }
//        [self didChangeValueForKey:THUMBNAILS_KEY];
//        [self allThumbnailsNeedUpdate];
        
        DispatchQueue.main.async {
            self.thumbnailTableView.reloadData()
        }
    }
    
    @IBAction @objc  func sortTypeAction(_ sender: NSMenuItem) {
        let item = sender
        let tag = item.tag
        
        if (item.state == .on) {
            item.state = .off
        } else {
            item.state = .on
        }
        if (tag == 0) {
            self.noteSortType = .page
            self.sortTypeLabel.stringValue = KMLocalizedString("Page", nil)
            self.sortTypeBox.toolTip = KMLocalizedString("Page", nil)
        } else if (tag == 1) {
            self.noteSortType = .time
            self.sortTypeLabel.stringValue = KMLocalizedString("Time", nil)
            self.sortTypeBox.toolTip = KMLocalizedString("Time", nil)
        }
        UserDefaults.standard.set(self.noteSortType.rawValue, forKey: KMLeftSideViewNoteSortTypeKey)
        UserDefaults.standard.synchronize()
    }
    
    @IBAction func noteSortAction(_ sender: AnyObject?) {
        if (self.isAscendSort) {
            self.isAscendSort = false
            self.noteSortButton.image = NSImage(named: KMImageNameBtnSidebarRankPositive)
            self.noteSortButton.toolTip = KMLocalizedString("descending sort", nil)
        } else {
            self.isAscendSort = true
            self.noteSortButton.image = NSImage(named: KMImageNameBtnSidebarRankReverse)
            self.noteSortButton.toolTip = KMLocalizedString("ascending sort", nil)
        }
        UserDefaults.standard.setValue(self.isAscendSort, forKey: KMLeftSideViewAscendSortBoolKey)
        UserDefaults.standard.synchronize()
    }
    
    @IBAction func noteSearchAction(_ sender: NSButton) {
        self.noteSearchField.isHidden = false
        self.noteTitleLabel.isHidden = true
        self.noteSearchButton.isHidden = true
        self.noteDoneButton.isHidden = false
        self.noteFilterButton.isHidden = true
        self.noteMoreButton.isHidden = true
        
        self.noteSearchField.becomeFirstResponder()
    }
    
    @IBAction func leftSideViewDoneButtonAction(_ sender: AnyObject?) {
        let button = sender as? NSButton
        let tag = button?.tag ?? 0
        if (tag == 310) {
            self.outlineSearchField.isHidden = true
            self.outlineDoneButton.isHidden = true
            self.outlineLabel.isHidden = false
            self.outlineSearchButton.isHidden = false
            self.outlineMoreButton.isHidden = false
            self.outlineAddButton.isHidden = false
        } else if (tag == 311) {
            self.noteSearchField.isHidden = true
            self.noteTitleLabel.isHidden = false
            self.noteSearchButton.isHidden = false
            self.noteDoneButton.isHidden = true
            self.noteFilterButton.isHidden = false
            self.noteMoreButton.isHidden = false
        } else if (tag == 312) {
            self.snapshotSearchField.isHidden = true
    //        leftSideController.snapshotSearchZoomOutButton.hidden = YES;
    //        leftSideController.snapshotSearchZoomInButton.hidden = YES;
            self.snapshotNormalSearchButton.isHidden = false
            self.snapshotDoneButton.isHidden = true
            self.snapshotLabel.isHidden = false
            self.snapshotNormalZoomOutButton.isHidden = false
            self.snapshotNormalZoomInButton.isHidden = false
        }
    }
    
    @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()
    //        NSMenuItem *addEntryItem = [menu addItemWithTitle:NSLocalizedString(@"Add Item", nil) action:@selector(outlineContextMenuItemClicked_AddEntry:) target:self];
    //        [addEntryItem setRepresentedObject:self.leftSideController.tocOutlineView];
    //        NSMenuItem *addChildItem = [menu addItemWithTitle:NSLocalizedString(@"Add Sub-Item", nil) action:@selector(outlineContextMenuItemClicked_AddChildEntry:) target:self];
    //        [addChildItem setRepresentedObject:self.leftSideController.tocOutlineView];
    //        [menu addItem:[NSMenuItem separatorItem]];
    //
    //        NSMenuItem *setDestinationItem = [menu addItemWithTitle:NSLocalizedString(@"Change Destination", nil) action:@selector(outlineContextMenuItemClicked_SetDestination:) target:self];
    //        [setDestinationItem setRepresentedObject:self.leftSideController.tocOutlineView];
    //        [menu addItem:[NSMenuItem separatorItem]];
            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()
    //        NSMenuItem *t = [subMenu addItemWithTitle:NSLocalizedString(@"Type", nil) action:@selector(noteShowNoteAction:) target:self];
    //        if ([[self.noteTypeDict objectForKey:@"kKMNoteFilterAnnotationTypeKey"] boolValue]) {
    //            [t setState:NSControlStateValueOff];
    //        } else {
    //            [t setState:NSControlStateValueOn];
    //        }
    //        [t setRepresentedObject:self.rightSideController.noteOutlineView];
    //        t.tag = 100;
            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)
        }
    }
    
    @IBAction func note_expandAllComments(_ sender: AnyObject?) {
        if (self.foldType == .unfold) {
            return
        }
        self.foldType = .unfold
//        [self loadUnfoldDate:KMFoldAllAnnotationType_None];
        self.noteOutlineView.reloadData()
    }
    
    @IBAction func note_foldAllComments(_ sender: AnyObject?) {
        if (self.foldType == .fold) {
            return
        }
        self.foldType = .fold
//        [self loadUnfoldDate:KMFoldAllAnnotationType_None];
        self.noteOutlineView.reloadData()
    }

    @IBAction func noteShowNoteAction(_ sender: AnyObject?) {
        let item = sender as? NSMenuItem
        let tag = item?.tag ?? 0
        if (tag == 100) {
    //        BOOL isType = [[self.noteTypeDict objectForKey:@"kKMNoteFilterAnnotationTypeKey"] boolValue];
    //        [self.noteTypeDict setObject:[NSNumber numberWithBool:!isType] forKey:@"kKMNoteFilterAnnotationTypeKey"];
        } else if (tag == 101) {
            let isPage = self.noteTypeDict["kKMNoteFilterAnnotationPageKey"] as? Bool ?? false
            self.noteTypeDict["kKMNoteFilterAnnotationPageKey"] = isPage
        } else if (tag == 102) {
            let isTime = self.noteTypeDict["kKMNoteFilterAnnotationTimeKey"] as? Bool ?? false
            self.noteTypeDict["kKMNoteFilterAnnotationTimeKey"] = isTime
        } else if (tag == 103) {
            let isAuther = self.noteTypeDict["kKMNoteFilterAnnotationAutherKey"] as? Bool ?? false
            self.noteTypeDict["kKMNoteFilterAnnotationAutherKey"] = isAuther
        }
        UserDefaults.standard.set(self.noteTypeDict, forKey: "KMNoteOutlineViewTableColumnKey")
        UserDefaults.standard.synchronize()
            
        let selectRow = self.noteOutlineView.selectedRow
        self.noteOutlineView.reloadData()
        self.noteOutlineView.selectRowIndexes(IndexSet(integer: selectRow), byExtendingSelection: false)
    }
    
    @objc func exportAnnotationNotes(_ sender: AnyObject?) {
        self.mainViewController.myDocument?.saveTo(sender)
    }
    
    @objc func leftSideEmptyAnnotationClick_DeleteAnnotation(_ sender: AnyObject?) {
//        NSAlert* alert = [[NSAlert alloc] init];
//        [alert setAlertStyle:NSAlertStyleCritical];
//        [alert setMessageText:NSLocalizedString(@"This will permanently remove all annotations. Are you sure to continue?", nil)];
//        [alert addButtonWithTitle:NSLocalizedString(@"Yes", nil)];
//        [alert addButtonWithTitle:NSLocalizedString(@"No", nil)];
//
//        NSModalResponse response = [alert runModal];
//        if (response == NSAlertFirstButtonReturn) {
//            NSMutableArray *annotations = [NSMutableArray array];
//
//            for (NSUInteger i = 0; i < self.pdfView.document.pageCount; i++) {
//                PDFPage *page = [[self.pdfView document] pageAtIndex:i];
//                for (PDFAnnotation *annotation in [page annotations]) {
//                    if ([annotation isKindOfClass:[PDFAnnotationTextWidget class]] ||
//                        [annotation isKindOfClass:[PDFAnnotationButtonWidget class]] ||
//                        [annotation isKindOfClass:[PDFAnnotationChoiceWidget class]]) {
//                        continue;
//                    }
//                    if (@available(macOS 10.13, *)) {
//                        if ([annotation.widgetFieldType isEqualToString:PDFAnnotationWidgetSubtypeSignature]) {
//                            continue;
//                        }
//                    }
//                    if ([annotation isKindOfClass:[PDFAnnotationLink class]]) {
//                        continue;
//                    }
//                    [annotations addObject:annotation];
//                }
//            }
//
//            for (PDFAnnotation *annotation in annotations) {
//                [self.pdfView removeAnnotation:annotation];
//            }
//        }
    }
    
    @IBAction func noteFilterAction(_ sender: AnyObject?) {
        let button = sender as? NSButton
        
        let menu = NSMenu()
        let filterViewController = KMNoteOutlineFilterViewController()
        filterViewController.view.layer?.backgroundColor = .clear

        var notes = NSMutableArray()
        for section in self._annotations {
            if section.annotations?.count != 0 {
                for item in section.annotations! {
                    notes.add(item.annotation!)
                }
            }
        }
        filterViewController.setNotesArray(notes)
        filterViewController.applyFilterCallback = { [weak self] typeArr, colorArr, authorArr, isEmpty in
            menu.cancelTracking()
            if (isEmpty) {
                self?.filterButtonLayer?.isHidden = true
            } else {
                self?.filterButtonLayer?.isHidden = false
            }
//
//            [blockSelf annotationSort:@[typeArr, colorArr, authorArr]];
        }
        filterViewController.cancelCallback = { isCancel in
            if (isCancel) {
                menu.cancelTracking()
            }
        }
        let item = menu.addItem(withTitle: "", action: nil, keyEquivalent: "")
        item.target = self
        item.representedObject = filterViewController
        item.view = filterViewController.view

        menu.popUp(positioning: nil, at: CGPointMake(-130, 30), in: button)
    }
    
    @IBAction func outlineNormalSearchButtonAction(_ sender: NSButton) {
        self.outlineSearchField.isHidden = false
        self.outlineDoneButton.isHidden = false
        self.outlineLabel.isHidden = true
        self.outlineSearchButton.isHidden = true
        self.outlineMoreButton.isHidden = true
        self.outlineAddButton.isHidden = true
        
        self.outlineSearchField.becomeFirstResponder()
    }
    
//    @objc func outlineContextMenuItemClicked_AddEntry(_ sender: NSMenuItem) {
//        NSMutableArray *PDFOutlineArray = [[NSMutableArray new] autorelease];
//        NSIndexSet *rowSet = [self selectedRowIndexes] ;
//
//        [rowSet enumerateIndexesUsingBlock:^(NSUInteger idx, BOOL * _Nonnull stop) {
//            [PDFOutlineArray addObject:[leftSideController.tocOutlineView itemAtRow:idx]];
//        }];
//
//        if (PDFOutlineArray.count == 0) {
//            PDFOutline *lastPDFLine = [leftSideController.tocOutlineView itemAtRow:leftSideController.tocOutlineView.numberOfRows - 1];
//
//            PDFOutline *rootPDFOutline;
//            if (lastPDFLine) {
//                while (lastPDFLine.parent) {
//                    lastPDFLine = lastPDFLine.parent;
//                }
//                rootPDFOutline = lastPDFLine;
//            } else {
//                rootPDFOutline = self.pdfView.document.outlineRoot;
//                if (!rootPDFOutline) {
//                    rootPDFOutline = [[[PDFOutline alloc] init] autorelease];
//                    [self.pdfView.document setOutlineRoot:rootPDFOutline];
//                }
//            }
//
//            PDFOutline *addOutLine = [[[PDFOutline alloc] init] autorelease];
//            addOutLine.label = [NSString stringWithFormat:@"%@ %ld",NSLocalizedString(@"Page", nil) ,[self.pdfView.document indexForPage:self.pdfView.currentDestination.page] + 1];
//            addOutLine.destination = self.pdfView.currentDestination;
//            [self addoutlineWithParent:rootPDFOutline addOutline:addOutLine index:rootPDFOutline.numberOfChildren needExpand:NO];
//
//        } else {
//            PDFOutline *currentPDFline = PDFOutlineArray.lastObject;
//            NSInteger currentIndex = currentPDFline.index;
//            PDFOutline *parent;
//            parent  = currentPDFline.parent;
//
//            PDFOutline *addOutLine = [[[PDFOutline alloc] init] autorelease];
//            addOutLine.label = [NSString stringWithFormat:@"%@ %ld",NSLocalizedString(@"Page", nil) ,[self.pdfView.document indexForPage:self.pdfView.currentDestination.page] + 1];
//            addOutLine.destination = self.pdfView.currentDestination;
//            [self addoutlineWithParent:parent addOutline:addOutLine index:currentIndex + 1 needExpand:NO];
//            [self.leftSideController.tocOutlineView scrollRowToVisible:currentIndex + 1];
//            [self.leftSideController.tocOutlineView deselectRow:currentIndex+1];
//
//        }
//    }
    
    @IBAction func toc_expandAllComments(_ sender: AnyObject?) {
        if (self.tocType == .unfold) {
            return
        }
        self.tocType = .unfold
        self.tocOutlineView.reloadData()
        self.tocOutlineView.expandItem(nil, expandChildren: true)
    }
    
    @IBAction func toc_foldAllComments(_ sender: AnyObject?) {
        if (self.tocType == .fold) {
            return
        }
        self.tocType = .fold
        self.tocOutlineView.reloadData()
        self.tocOutlineView.collapseItem(nil, collapseChildren: true)
    }
    
    @objc func leftSideEmptyAnnotationClick_DeleteOutline(_ sender: AnyObject?) {
        let alert = NSAlert()
        alert.alertStyle = .critical
        alert.messageText = ""
        alert.informativeText = KMLocalizedString("This will permanently remove all outlines. Are you sure to continue?", nil)
        alert.addButton(withTitle: KMLocalizedString("Yes", nil))
        alert.addButton(withTitle: KMLocalizedString("No", nil))
        let response = alert.runModal()
        if response == .alertFirstButtonReturn {
            if let item = self.listView.document.outlineRoot() {
                self.removeAllOutline(item)
            }
        }
    }
    
    @IBAction func thumbnailSizeScaling(_ sender: NSButton) {
        let sud = UserDefaults.standard
        
        let tag = sender.tag
        if (tag == 0 || tag == 1) {
            var scaling = sud.float(forKey: "KMThumbnailSizeScalingKey")
            if (scaling <= 0) {
                scaling = 1
            }
            if (tag == 0) { // thumbnail Zoom In
                scaling += 0.1
                if scaling >= 2.2 {
                    return
                }
            } else if (tag == 1) { // thumbnail Zoom Out
                scaling -= 0.1
                if scaling <= 0.4 {
                    return
                }
            }
            sud.setValue(scaling, forKey: "KMThumbnailSizeScalingKey")

            let selectRow = self.thumbnailTableView.selectedRow
            self.thumbnailTableView.reloadData()
            
            self.thumbnailTableView.selectRowIndexes(IndexSet(integer: selectRow), byExtendingSelection: false)
        } else if (tag == 2 || tag == 3) {
            var scaling = sud.float(forKey: "KMSnapshotSizeScalingKey")
            if (scaling <= 0) {
                scaling = 1
            }
            
            if (tag == 2) { // snapshot Zoom In
                scaling += 0.1
            } else if (tag == 3) { // snapshot Zoom Out
                scaling -= 0.1
            }
            
            sud.setValue(scaling, forKey: "KMSnapshotSizeScalingKey")
            
            let selectRow = self.snapshotTableView.selectedRow
            self.snapshotTableView.reloadData()
            self.snapshotTableView.selectRowIndexes(IndexSet(integer: selectRow), byExtendingSelection: false)
        }
    }
    
    func reloadAnnotation() {
        if self.listView != nil {
            var dataArray: [KMBOTAAnnotationSection] = []
            var annotationArray: [CPDFAnnotation] = []
            for i in 0 ..< self.listView.document.pageCount {
                var annotationItemArray: [KMBOTAAnnotationItem] = []
                let page = self.listView.document.page(at: i)
                let types = ["Highlight","Underline","Strikeout","Freehand","FreeText","Note","Square","Circle","Line","Stamp","Arrow","Image","Redact","Sign"]
                var pageAnnotations: [CPDFAnnotation] = KMOCToolClass.filterAnnotation(annotations: page!.annotations,types: types) as! [CPDFAnnotation]
                //添加签名注释
                for annotation in page!.annotations {
                   if annotation.isKind(of: CPDFSignatureAnnotation.self) {
                       pageAnnotations.append(annotation)
                   }
                }
                
                for annotation in pageAnnotations {
                    if annotation.annotationShouldDisplay() == false {
                        pageAnnotations.removeObject(annotation)
                    }
                }

                //转换所有annotation类型
                let section = KMBOTAAnnotationSection()
                for annotation in pageAnnotations {
                    let item = KMBOTAAnnotationItem()
                    item.section = section
                    item.annotation = annotation
                    item.index = Int(annotation.page.pageIndex())
                    annotationItemArray.append(item)
                }
                
                if annotationItemArray.count != 0 {
                    section.annotations = annotationItemArray
                    section.page = page
                    section.isItemExpanded = true
                    dataArray.append(section)
                }
                
                //添加所有annotation 用于筛选
                annotationArray += pageAnnotations
            }
            
            //转换对象，用于数据显示
            self._annotations = dataArray
            self._allAnnotations = annotationArray
            
//            if self.annotations.count < 1 {
//               self.filtrateButton.isEnabled = false
//            } else {
//               self.filtrateButton.isEnabled = true
//            }
        }
    }
    
    func annotationSort(sortArray:[[Any]]) {
        if self.listView != nil {
            var typeArr: [Any] = []
            var colorArr: [Any] = []
            var authorArr: [Any] = []
            
            let sud = UserDefaults.standard
            let typeData = sud.object(forKey: "KMNoteOutlineFilterSelectArray_Type" + self.listView.document.documentURL.path) as? Data
            if typeData != nil {
                typeArr = NSKeyedUnarchiver.unarchiveObject(with: typeData!) as! [Any]
            }
            
            let colorData = sud.object(forKey: "KMNoteOutlineFilterSelectArray_Color" + self.listView.document.documentURL.path) as? Data
            if colorData != nil {
                colorArr = NSKeyedUnarchiver.unarchiveObject(with: colorData!) as! [Any]
            }
            
            let authorData = sud.object(forKey: "KMNoteOutlineFilterSelectArray_Author" + self.listView.document.documentURL.path) as? Data
            if authorData != nil {
                authorArr = NSKeyedUnarchiver.unarchiveObject(with: authorData!) as! [Any]
            }
            
            if typeArr.count == 0 && colorArr.count == 0 && authorArr.count == 0 {
//                self.filtrateButton.image = NSImage(named: "KMImageNameAnnotationsFiltrate")
                self.reloadAnnotation()
            } else {
//                self.filtrateButton.image = NSImage(named: "icon_annotation_screening_select")
                var dataArray: [KMBOTAAnnotationSection] = []
                for i in 0 ..< self.listView.document.pageCount {
                    var annotationItemArray: [KMBOTAAnnotationItem] = []
                    let page = self.listView.document.page(at: i)
                    if page!.annotations.count > 0 {
                        var filterAnnotations: [CPDFAnnotation] = page!.annotations
                        if typeArr.count > 0 {
                            filterAnnotations = (KMOCToolClass.filterAnnotation(annotations: filterAnnotations, types: typeArr) as! [CPDFAnnotation])
                        }
                        if (colorArr.count > 0) {
                            filterAnnotations = (KMOCToolClass.filterAnnotation(annotations: filterAnnotations,colors: colorArr) as! [CPDFAnnotation])
                        }
                        if (authorArr.count > 0) {
                            filterAnnotations = (KMOCToolClass.filterAnnotation(annotations: filterAnnotations,authors: authorArr) as! [CPDFAnnotation])
                        }
                        
                        let section = KMBOTAAnnotationSection()
                        for annotation in filterAnnotations {
                            let item = KMBOTAAnnotationItem()
                            item.section = section
                            item.annotation = annotation
                            item.index = Int(page!.pageIndex())
                            annotationItemArray.append(item)
                        }
                        
                        if annotationItemArray.count != 0 {
                            section.annotations = annotationItemArray
                            section.page = page
                            section.isItemExpanded = true
                            dataArray.append(section)
                        }
                    }
                }
                
                self._annotations = dataArray
            }
        }
    }
    
    func showSearchOutlineBlankState(_ toShowState: Bool) {
        if (toShowState) {
            self.leftSideEmptyVC.outlineSearchView.frame = CGRectMake((self.tocOutlineView.enclosingScrollView!.documentView!.frame.size.width - self.leftSideEmptyVC.outlineSearchView.bounds.size.width)/2.0, (self.tocOutlineView.enclosingScrollView!.documentView!.frame.size.height - self.leftSideEmptyVC.outlineSearchView.bounds.size.height)/2.0, self.leftSideEmptyVC.outlineSearchView.bounds.size.width, self.leftSideEmptyVC.outlineSearchView.bounds.size.height);
            self.tocOutlineView.enclosingScrollView?.documentView?.addSubview(self.leftSideEmptyVC.outlineSearchView)
            self.leftSideEmptyVC.outlineSearchView.autoresizingMask = [.minXMargin, .maxXMargin, .minYMargin, .maxYMargin]
        } else {
            self.leftSideEmptyVC.outlineSearchView.removeFromSuperview()
        }
    }
    
//    func allRangeOfRoughString(_ roughString: String, searchString: String) -> [NSRange] {
//
//    }
    
    func removeAllOutline(_ outline: CPDFOutline) {
        let ol = CPDFOutline()
        self.listView.document.setOutlineRoot(ol)
        
        for i in 0 ..< self.listView.document.pageCount {
            self.listView.document.removeBookmark(forPageIndex: i)
        }
        self.listView.layoutDocumentView()
        DispatchQueue.main.async {
            self.tocOutlineView.reloadData()
        }
    }
    
    func updateNoteFilterPredicate() {
        //注释筛选
    //    [rightSideController.noteArrayController setFilterPredicate:[noteTypeSheetController filterPredicateForSearchString:[rightSideController.searchField stringValue] caseInsensitive:mwcFlags.caseInsensitiveNoteSearch]];
        
//        NSPredicate *predicate = [noteTypeSheetController filterPredicateForSearchString:[rightSideController.searchField stringValue] caseInsensitive:mwcFlags.caseInsensitiveNoteSearch];
//        [self loadAnnotationSortData:[NSArray arrayWithObjects:predicate, nil]];
//        [rightSideController.noteOutlineView reloadData];
    }
    
    @objc func selectSelectedNote(_ sender: AnyObject?) {
        if self.listView.hideNotes == false {
            let selectedNotes = self.selectedNotes()
            if selectedNotes.count == 1 {
                let annotation = selectedNotes.last!
                self.listView.go(to: annotation.bounds, on: annotation.page, animated: true)
                
//                [pdfView scrollAnnotationToVisible:annotation];
//                [pdfView setActiveAnnotation:annotation];
                    
                    self.listView.updateActiveAnnotations([annotation])
                    self.listView.setNeedsDisplayAnnotationViewForVisiblePages()
//                }
                
            }
//            NSInteger column = [sender clickedColumn];
//            if (column != -1) {
//                NSString *colID = [[[sender tableColumns] objectAtIndex:column] identifier];
//
//                if ([colID isEqualToString:@"color"]){
//                    for (PDFAnnotation *annotation  in self.pdfView.activeAnnotations) {
//                       if (![annotation isKindOfClass:[PDFAnnotationChoiceWidget class]] &&
//                         ![annotation isKindOfClass:[PDFAnnotationButtonWidget class]] &&
//                         ![annotation isKindOfClass:[PDFAnnotationTextWidget class]]) {
//                            [[NSColorPanel sharedColorPanel] orderFront:nil];
//                            break;
//                        }
//
//                    }
//                }
//            }
        }
    }
    
    func selectedNotes() -> [CPDFAnnotation] {
        var selectedNotes: [CPDFAnnotation] = []
        let rowIndexes = self.noteOutlineView.selectedRowIndexes
        for row in rowIndexes {
            let item = self.noteOutlineView.item(atRow: row)
            if item is KMBOTAAnnotationItem {
                if let anno = (item as! KMBOTAAnnotationItem).annotation {
                    //                if anno.type == nil {
                    //                item = [(SKNoteText *)item note];
                    //                }
                    if selectedNotes.contains(anno) == false {
                        selectedNotes.append(anno)
                    }
                }
            }
        }
        return selectedNotes
    }
}

// MARK: - KMBotaTableViewDelegate

extension KMLeftSideViewController: KMBotaTableViewDelegate {
    func tableView(_ aTableView: NSTableView, canCopyRowsWithIndexes rowIndexes: IndexSet) -> Bool {
        if aTableView.isEqual(to: self.thumbnailTableView) || aTableView.isEqual(to: self.findTableView) || aTableView.isEqual(to: self.groupedFindTableView) {
            return rowIndexes.count > 0
        }
        return false
    }
    
    func tableView(_ aTableView: NSTableView, canPasteFromPasteboard pboard: NSPasteboard) -> Bool {
        if aTableView.isEqual(to: self.thumbnailTableView) {
            if self._copysPages.count > 0 {
                return true
            }
        }
        return false
    }
    
    func tableView(_ aTableView: NSTableView, canDeleteRowsWithIndexes rowIndexes: IndexSet) -> Bool {
//        if ([tv isEqual:rightSideController.snapshotTableView]) {
//            return [rowIndexes count] > 0;
//        } else
        if aTableView.isEqual(to: self.thumbnailTableView) {
            if self.listView.document.pageCount <= 1 {
                return false
            }
            return true
        }
        return false
    }
    
    func tableView(_ aTableView: NSTableView, pasteFromPasteboard pboard: NSPasteboard) {
//        if (![IAPProductsManager defaultManager].isAvailableAllFunction) {
//            [[KMPurchaseCompareWindowController sharedInstance] showWindow:nil];
//            return;
//        }
        
        if aTableView.isEqual(to: self.thumbnailTableView) {
            if self._copysPages.count > 0 {
                let index = self.listView.document.index(for: self.listView.currentPage()) + 1
                if (index == NSNotFound) {
                    return
                }
                for page in self._copysPages.reversed() {
                    if let newPage = page.copy() as? CPDFPage {
                        self.listView.document.insertPageObject(newPage, at: index)
                    }
                    self.listView.layoutDocumentView()
//                    [pageLabels setArray:[[pdfView document] pageLabels]];
                    self.resetThumbnails()
                    let pageIndex = min(index, self.listView.document.pageCount-1)
                    self.listView.go(toPageIndex: Int(pageIndex), animated: true)
//                    [[[[self document] undoManager] prepareWithInvocationTarget:self] tableView:leftSideController.thumbnailTableView deleteRowsWithIndexes:[NSIndexSet indexSetWithIndex:index]];
                }
            }
        }
    }
    
    func tableViewMoveLeft(_ aTableView: NSTableView) {
        if aTableView.isEqual(to: self.findTableView) || aTableView.isEqual(to: self.groupedFindTableView) {
//            [self updateFindResultHighlightsForDirection:NSSelectingPrevious];
        }
    }
    
    func tableViewMoveRight(_ aTableView: NSTableView) {
        if aTableView.isEqual(to: self.findTableView) || aTableView.isEqual(to: self.groupedFindTableView) {
//            [self updateFindResultHighlightsForDirection:NSSelectingNext];
        }
    }
    
    func tableView(_ aTableView: NSTableView, imageContextForRow rowIndex: Int) -> AnyObject? {
        if aTableView.isEqual(to: self.findTableView) {
            if rowIndex >= self.searchResults.count {
                return nil
            }
            let model = self.searchResults[rowIndex]
            let selection = model.selection
            let point = NSPoint(x: NSWidth(selection.bounds) * 0.5, y: NSHeight(selection.bounds) * 0.5)
            return CPDFDestination(document: self.listView.document, pageIndex: Int(selection.page.pageIndex()), at: point, zoom: self.listView.scaleFactor)
        } else if aTableView.isEqual(to: self.groupedFindTableView) {
            if rowIndex >= self.groupSearchResults.count {
                return nil
            }
//            let model = self.groupSearchResults[rowIndex]
//            let selection = model.selection
//            let point = NSPoint(x: NSWidth(selection.bounds) * 0.5, y: NSHeight(selection.bounds) * 0.5)
//            return CPDFDestination(document: self.listView.document, pageIndex: Int(selection.page.pageIndex()), at: point, zoom: self.listView.scaleFactor)
        }
        return nil
    }
    
    /*
     - (NSArray *)tableView:(NSTableView *)tv typeSelectHelperSelectionStrings:(SKTypeSelectHelper *)typeSelectHelper {
         if ([tv isEqual:leftSideController.thumbnailTableView]) {
             return pageLabels;
         }
         return nil;
     }

     - (void)tableView:(NSTableView *)tv typeSelectHelper:(SKTypeSelectHelper *)typeSelectHelper didFailToFindMatchForSearchString:(NSString *)searchString {
         if ([tv isEqual:leftSideController.thumbnailTableView]) {
             [statusBar setLeftStringValue:[NSString stringWithFormat:NSLocalizedString(@"No match: \"%@\"", @"Status message"), searchString]];
         }
     }

     - (void)tableView:(NSTableView *)tv typeSelectHelper:(SKTypeSelectHelper *)typeSelectHelper updateSearchString:(NSString *)searchString {
         if ([tv isEqual:leftSideController.thumbnailTableView]) {
             if (searchString.length > 0)
                 [statusBar setLeftStringValue:[NSString stringWithFormat:NSLocalizedString(@"Go to page: %@", @"Status message"), searchString]];
             else
                 [self updateLeftStatus];
         }
     }
     */
    
}

// MARK: - KMThumbnailTableViewDelegate

extension KMLeftSideViewController: KMThumbnailTableViewDelegate {
    func tableView(_ tableView: NSTableView, highlightLevelForRow row: Int) -> UInt {
        if tableView.isEqual(to: self.thumbnailTableView) {
//            NSUInteger i, iMax = [lastViewedPages count];
//            for (i = 0; i < iMax; i++) {
//                if (row == (NSInteger)[lastViewedPages pointerAtIndex:i])
//                    return i;
//            }
        }
        return UInt.max
    }
    
    func tableView(_ tableView: NSTableView, commandSelectRow rowIndex: Int) -> Bool {
        if tableView.isEqual(to: self.thumbnailTableView) {
    //        NSRect rect = [[[pdfView document] pageAtIndex:row] boundsForBox:kPDFDisplayBoxCropBox];
    //
    //        rect.origin.y = NSMidY(rect) - 0.5 * SNAPSHOT_HEIGHT;
    //        rect.size.height = SNAPSHOT_HEIGHT;
    //        [self showSnapshotAtPageNumber:row forRect:rect scaleFactor:[pdfView scaleFactor] autoFits:NO];
            let thumbailTabCell = tableView.view(atColumn: 0, row: rowIndex, makeIfNecessary: true) as? KMThumbnailTableviewCell
            thumbailTabCell?.isSelectCell = true
            var rowIndexSet = IndexSet()
            for i in self.thumbnailTableView.selectedRowIndexes {
                rowIndexSet.insert(i)
            }
            rowIndexSet.insert(rowIndex)
            self.thumbnailTableView.selectRowIndexes(rowIndexSet, byExtendingSelection: true)
            return true
        }
        return false
    }
    
    func tableView(_ tableView: NSTableView, shiftSelectRow rowIndex: Int) -> Bool {
        if tableView.isEqual(to: self.thumbnailTableView) {
            if (self.thumbnailTableView.selectedRowIndexes.count == 0) {
                let thumbailTabCell = tableView.view(atColumn: 0, row: rowIndex, makeIfNecessary: true) as? KMThumbnailTableviewCell
                thumbailTabCell?.isSelectCell = true
                var rowIndexSet = IndexSet()
                self.thumbnailTableView.selectRowIndexes(rowIndexSet, byExtendingSelection: true)
                return true
            } else if (self.thumbnailTableView.selectedRowIndexes.count == 1 && self.thumbnailTableView.selectedRowIndexes.first == rowIndex) {
                return false
            } else {
                var fristIndex = self.thumbnailTableView.selectedRowIndexes.first ?? Int.min
                var lastIndex = self.thumbnailTableView.selectedRowIndexes.last ?? Int.max
                for idx in self.thumbnailTableView.selectedRowIndexes {
//                [leftSideController.thumbnailTableView.selectedRowIndexes enumerateIndexesUsingBlock:^(NSUInteger idx, BOOL * _Nonnull stop) {
                    if(idx < fristIndex) {
                        fristIndex = idx
                    }
                    if(idx > lastIndex) {
                        lastIndex = idx
                    }
                }
                
                if(rowIndex < fristIndex) {
                    fristIndex = rowIndex
                } else if (rowIndex > lastIndex) {
                    lastIndex = rowIndex
                }
                var rowIndexSet = IndexSet()
                for i in fristIndex ... lastIndex {
                    rowIndexSet.insert(i)
                }
                self.thumbnailTableView.selectRowIndexes(rowIndexSet, byExtendingSelection: true)
                return true
            }
        }
        return false
    }
}

// MARK: - 扩展

extension KMLeftSideViewController {
    public func selectType(_ type: BotaType) {
        // 更新 type
        var show = true
        if (self.type.methodType == .None) {
            show = true
        } else {
            if (self.type.methodType == type) {
                show = false
            } else {
                show = true
            }
        }
        
        var index: Int = NSNotFound
        switch type {
        case .None:
            index = NSNotFound
            break
        case .Thumbnail:
            index = 0
            break
        case .Outline:
            index = 1
            break
        case .BookMark:
            index = 2
            break
        case .Annotation:
            index = 3
            break
        case .Search:
            index = 4
            break
        case .From:
            index = 5
            break
        case .Signature:
            index = 6
            break
        }
        
        self.type = self.getMethodMode(show ? type : .None)
        
        // 更新按钮状态
//        self.updateViewButtonState()
        // 将事件传递出去
        self.delegate?.controlStateChange?(self,show:show)
        if (index != NSNotFound) {
            
            // 记录当前选中
            UserDefaults.standard.set(index, forKey: "KMBOTASelectedIndexKey")
            UserDefaults.standard.synchronize()
        }
    }
    
    private func getMethodMode(_ type: BotaType) -> KMLeftMethodMode {
        let mode = KMLeftMethodMode()
        mode.methodType = type
        switch type {
        case .None:
            mode.methodName = ""
            break
        case .Thumbnail:
            mode.methodName = thumbnailMethodKey
            break
        case .Outline:
            mode.methodName = outlineMethodKey
            break
        case .BookMark:
            mode.methodName = bookMarkMethodKey
            break
        case .Annotation:
            mode.methodName = anntationMethodKey
            break
        case .Search:
            mode.methodName = searchMethodKey
            break
        case .From:
            mode.methodName = formMethodKey
            break
        case .Signature:
            mode.methodName = signatureMethodKey
            break
        }
        return mode
    }
}

//MARK: Cache
extension KMLeftSideViewController {
    func clearAnnotationFilterData() {
        if let _key = self.listView?.document?.documentURL?.path {
            let userDefaults = UserDefaults.standard
            let typeData = try?NSKeyedArchiver.archivedData(withRootObject: [Any](), requiringSecureCoding: false)
            userDefaults.set(typeData, forKey: "KMNoteOutlineFilterSelectArray_Type" + _key)
            let colorData = try?NSKeyedArchiver.archivedData(withRootObject: [Any](), requiringSecureCoding: false)
            userDefaults.set(colorData, forKey: "KMNoteOutlineFilterSelectArray_Color" + _key)
            let authorData = try?NSKeyedArchiver.archivedData(withRootObject: [Any](), requiringSecureCoding: false)
            userDefaults.set(authorData, forKey: "KMNoteOutlineFilterSelectArray_Author" + _key)
            userDefaults.synchronize()
        }
    }
    
    func clearNotification() {
    }
}

// MARK: - Analytics (埋点)

extension KMLeftSideViewController {
    func trackEvent(type: BotaType) -> Void {
        if (type == .Thumbnail) {
            KMAnalytics.trackEvent(eventName: "Btn_LeftSideBar_Thumbnail", parameters: [
                KMAnalytics.Parameter.categoryKey : KMAnalytics.Category.leftSideBar,
                KMAnalytics.Parameter.labelKey : KMAnalytics.Label.leftSideBar_Btn], platform: .AppCenter, appTarget: .all)
        } else if (type == .Outline) {
            KMAnalytics.trackEvent(eventName: "Btn_LeftSideBar_Outline", parameters: [
                KMAnalytics.Parameter.categoryKey : KMAnalytics.Category.leftSideBar,
                KMAnalytics.Parameter.labelKey : KMAnalytics.Label.leftSideBar_Btn], platform: .AppCenter, appTarget: .all)
        } else if (type == .BookMark) {
            KMAnalytics.trackEvent(eventName: "Btn_LeftSideBar_BookMark", parameters: [
                KMAnalytics.Parameter.categoryKey : KMAnalytics.Category.leftSideBar,
                KMAnalytics.Parameter.labelKey : KMAnalytics.Label.leftSideBar_Btn], platform: .AppCenter, appTarget: .all)
        } else if (type == .Annotation) {
            KMAnalytics.trackEvent(eventName: "Btn_LeftSideBar_Annotation", parameters: [
                KMAnalytics.Parameter.categoryKey : KMAnalytics.Category.leftSideBar,
                KMAnalytics.Parameter.labelKey : KMAnalytics.Label.leftSideBar_Btn], platform: .AppCenter, appTarget: .all)
        } else if (type == .Search) {
            KMAnalytics.trackEvent(eventName: "Btn_LeftSideBar_Search", parameters: [
                KMAnalytics.Parameter.categoryKey : KMAnalytics.Category.leftSideBar,
                KMAnalytics.Parameter.labelKey : KMAnalytics.Label.leftSideBar_Btn], platform: .AppCenter, appTarget: .all)
        }
    }
}

// MARK: - Private Methods

extension KMLeftSideViewController {
    @objc private func _themeChanged(_ notification: NSNotification) {
        DispatchQueue.main.asyncAfter(deadline: .now()+0.3) {
            self._updateViewColor()
        }
    }
    
    private func _updateViewColor() {
        if(KMAppearance.isDarkMode()){
            self.leftListView.layer?.backgroundColor = NSColor(red: 0.149, green: 0.157, blue: 0.169, alpha: 1).cgColor
            self.snapshotNormalView.layer?.backgroundColor = NSColor(red: 0.149, green: 0.157, blue: 0.169, alpha: 1).cgColor
            self.thumbnailView.layer?.backgroundColor = NSColor(red: 0.149, green: 0.157, blue: 0.169, alpha: 1).cgColor
            self.noteView.layer?.backgroundColor = NSColor(red: 0.149, green: 0.157, blue: 0.169, alpha: 1).cgColor
            self.outlineView.layer?.backgroundColor = NSColor(red: 0.149, green: 0.157, blue: 0.169, alpha: 1).cgColor
            self.view.layer?.backgroundColor = NSColor(red: 0.149, green: 0.157, blue: 0.169, alpha: 1).cgColor
            self.thumbnailTableView.backgroundColor = NSColor(red: 0.149, green: 0.157, blue: 0.169, alpha: 1)
            self.groupedFindTableView.backgroundColor = NSColor(red: 0.149, green: 0.157, blue: 0.169, alpha: 1)
            self.tocOutlineView.backgroundColor = NSColor(red: 0.149, green: 0.157, blue: 0.169, alpha: 1)
            self.findTableView.backgroundColor = NSColor(red: 0.149, green: 0.157, blue: 0.169, alpha: 1)
            
            self.snapshotSearchField.layer?.backgroundColor = NSColor(red: 0.224, green: 0.235, blue: 0.243, alpha: 1).cgColor
            self.outlineSearchField.layer?.backgroundColor = NSColor(red: 0.224, green: 0.235, blue: 0.243, alpha: 1).cgColor
            self.noteSearchField.layer?.backgroundColor = NSColor(red: 0.224, green: 0.235, blue: 0.243, alpha: 1).cgColor
            self.segmentedControl.layer?.backgroundColor = NSColor(red: 0.224, green: 0.235, blue: 0.243, alpha: 1).cgColor
            
            self.snapshotSearchField.backgroundColor = NSColor(red: 0.224, green: 0.235, blue: 0.243, alpha: 1)
            self.outlineSearchField.backgroundColor = NSColor(red: 0.224, green: 0.235, blue: 0.243, alpha: 1)
            self.noteSearchField.backgroundColor = NSColor(red: 0.224, green: 0.235, blue: 0.243, alpha: 1)
        } else {
            self.leftListView.layer?.backgroundColor = NSColor(red: 0.988, green: 0.992, blue: 1, alpha: 1).cgColor
            self.snapshotNormalView.layer?.backgroundColor = NSColor(red: 0.988, green: 0.992, blue: 1, alpha: 1).cgColor
            self.thumbnailView.layer?.backgroundColor = NSColor(red: 0.988, green: 0.992, blue: 1, alpha: 1).cgColor
            self.noteView.layer?.backgroundColor = NSColor(red: 0.988, green: 0.992, blue: 1, alpha: 1).cgColor
            self.outlineView.layer?.backgroundColor = NSColor(red: 0.988, green: 0.992, blue: 1, alpha: 1).cgColor
            self.view.layer?.backgroundColor = NSColor(red: 0.988, green: 0.992, blue: 1, alpha: 1).cgColor
            
            self.thumbnailTableView.backgroundColor = NSColor(red: 0.988, green: 0.992, blue: 1.000, alpha: 1)
            self.groupedFindTableView.backgroundColor = NSColor(red: 0.988, green: 0.992, blue: 1.000, alpha: 1)
            self.tocOutlineView.backgroundColor = NSColor(red: 0.988, green: 0.992, blue: 1.000, alpha: 1)
            self.findTableView.backgroundColor = NSColor(red: 0.988, green: 0.992, blue: 1.000, alpha: 1)
            
            self.snapshotSearchField.layer?.backgroundColor = NSColor(red: 0.922, green: 0.925, blue: 0.941, alpha: 1).cgColor
            self.outlineSearchField.layer?.backgroundColor = NSColor(red: 0.922, green: 0.925, blue: 0.941, alpha: 1).cgColor
            self.noteSearchField.layer?.backgroundColor = NSColor(red: 0.922, green: 0.925, blue: 0.941, alpha: 1).cgColor
            self.segmentedControl.layer?.backgroundColor = NSColor(red: 0.922, green: 0.925, blue: 0.941, alpha: 1).cgColor
            
            self.snapshotSearchField.backgroundColor = NSColor(red: 0.922, green: 0.925, blue: 0.941, alpha: 1)
            self.outlineSearchField.backgroundColor = NSColor(red: 0.922, green: 0.925, blue: 0.941, alpha: 1)
            self.noteSearchField.backgroundColor = NSColor(red: 0.922, green: 0.925, blue: 0.941, alpha: 1)
        }
    }
    
    private func _hasContainString(_ searchString: String, rootOutline outline: CPDFOutline) -> Bool {
        let label_low = outline.label.lowercased()
        let searchString_low = searchString.lowercased()
        if label_low.contains(searchString_low) {
//        if ([outline.label rangeOfString:searchString options:self.outlineIgnoreCaseFlag?NSCaseInsensitiveSearch:0].location != NSNotFound){
            return true
        } else {
            var subHas = false
            for i in 0 ..< outline.numberOfChildren {
                if let subOutline = outline.child(at: i) {
                    subHas = self._hasContainString(searchString, rootOutline: subOutline)
                } else {
                    continue
                }
                if (subHas) {
                    break
                }
            }
            return subHas
        }
        return false
    }
}

// MARK: - NSTableViewDelegate, NSTableViewDataSource

extension KMLeftSideViewController: NSTableViewDelegate, NSTableViewDataSource {
    func numberOfRows(in tableView: NSTableView) -> Int {
        if tableView.isEqual(to: self.thumbnailTableView) {
            return self.thumbnails.count
        } else if tableView.isEqual(to: self.findTableView) {
            return self.searchResults.count
        } else if tableView.isEqual(to: self.groupedFindTableView) {
            return self.groupSearchResults.count
        } else if tableView.isEqual(to: self.snapshotTableView) {
            return self.snapshots.count
        }
        return 0
    }
    
    func tableView(_ tableView: NSTableView, viewFor tableColumn: NSTableColumn?, row: Int) -> NSView? {
        if tableView.isEqual(to: self.thumbnailTableView) {
            let cell = tableView.makeView(withIdentifier: NSUserInterfaceItemIdentifier(rawValue: "KMThumbnailTableviewCell"), owner: self) as! KMThumbnailTableviewCell
            let thumbnail = self.thumbnails[row]
            cell.pageNumLabel.stringValue = thumbnail.label
//            cell.thumImage.image = thumbnail.image
            cell.pageView.page = self.listView.document.page(at: UInt(row))
            if let _image = thumbnail.image {
                let multiplierHToW = _image.size.height / (_image.size.width == 0 ? 1 : _image.size.width)
                let multiplierWToH = _image.size.width  / (_image.size.height == 0 ? 1 : _image.size.height)
                if (_image.size.height > _image.size.width) {
                    NSLayoutConstraint.deactivate([cell.imageAspectRatioLayout])
//                    cell.imageAspectRatioLayout = NSLayoutConstraint(item: cell.thumImage, attribute: .height, relatedBy: .equal, toItem: cell.thumImage, attribute: .width, multiplier: multiplierHToW, constant: 0)
//                    NSLayoutConstraint.activate([cell.imageAspectRatioLayout])
                } else {
                    NSLayoutConstraint.deactivate([cell.imageAspectRatioLayout])
//                    cell.imageAspectRatioLayout = NSLayoutConstraint(item: cell.thumImage, attribute: .width, relatedBy: .equal, toItem: cell.thumImage, attribute: .height, multiplier: multiplierWToH, constant: 0)
//                    NSLayoutConstraint.activate([cell.imageAspectRatioLayout])
                }
            }

            if (self.isDisplayPageSize) {
                cell.sizeLabel.isHidden = false
                //获取Page的真实尺寸
                let page = self.listView.document.page(at: UInt(row))
                let rect = page?.bounds(for: .cropBox) ?? .zero
                let w =  KMPageSizeTool.conversion(withUnit: "mm", value: (CGRectGetWidth(rect)/595 * 210))
                let h =  KMPageSizeTool.conversion(withUnit: "mm", value: (CGRectGetHeight(rect)/842 * 297))
                if let data = page?.rotation, data == 90 || data == 270 {
                    cell.sizeLabel.stringValue = String(format: "%.f × %.f %@", h.stringToCGFloat(), w.stringToCGFloat(), KMLocalizedString("mm", nil))
                } else {
                    cell.sizeLabel.stringValue = String(format: "%.f × %.f %@", w.stringToCGFloat(), h.stringToCGFloat(), KMLocalizedString("mm", nil))
                }
            } else {
                cell.sizeLabel.isHidden = true
            }
            cell.sizeTopConstant.constant = cell.sizeLabel.isHidden ? -cell.sizeLabel.frame.size.height : 0
            if(self.thumbnailTableView.selectedRowIndexes.contains(row)) {
                cell.isSelectCell = true
            } else {
                cell.isSelectCell = false
            }
            return cell
        } else if (tableView.isEqual(to: self.findTableView)) {
            let cell = tableView.makeView(withIdentifier: NSUserInterfaceItemIdentifier(rawValue: "KMFindTableviewCell"), owner: self) as! KMFindTableviewCell
             let selection = searchResults[row]
            if let data = tableColumn?.identifier.rawValue, data == "results" {
                cell.resultLabel.attributedStringValue = selection.attributedString
                cell.resultLabel.textColor = KMAppearance.Layout.h0Color()
            } else if let data = tableColumn?.identifier.rawValue, data == "page" {
                cell.resultLabel.stringValue = "\(Int(selection.selection.page?.pageIndex() ?? 0) + 1)"
                cell.resultLabel.textColor = KMAppearance.Layout.h2Color()
            }
            return cell
        } else if tableView.isEqual(to: self.snapshotTableView) {
            let cell = tableView.makeView(withIdentifier: NSUserInterfaceItemIdentifier(rawValue: "KMSnapshotTableViewCell"), owner: self) as! KMSnapshotTableViewCell
            let snapshot = self.snapshots[row]
            cell.snapshotImage.image = snapshot.windowC?.thumbnail
            cell.snapshotLabel.stringValue = snapshot.windowC?.pageLabel ?? ""
            if let data = snapshot.windowC?.hasWindow, data {
                cell.snapshotImageView.isHidden = false
            } else {
                cell.snapshotImageView.isHidden = true
            }
            cell.isSelectCell = snapshot.isSelected
            if (row == tableView.selectedRow) {
                cell.snapshotImageView.image = NSImage(named: KMImageNameUXIconSidebarSnapshotWindowSel)
            } else {
                cell.snapshotImageView.image = NSImage(named: KMImageNameUXIconSidebarSnapshotWindowNor)
            }
            return cell
        }
        return nil
    }
    
    func tableView(_ tableView: NSTableView, heightOfRow row: Int) -> CGFloat {
        if tableView.isEqual(to: self.thumbnailTableView) {
            let scaling = UserDefaults.standard.float(forKey: "KMThumbnailSizeScalingKey")
//            let thumbnailSize = self.thumbnails[row].size
            let thumbnailSize = NSMakeSize(self.thumbnailCacheSize, self.thumbnailCacheSize)
            
            let newScaling: CGFloat = scaling.cgFloat + 0.1
            let newThumbnailHeight = thumbnailSize.width * newScaling
            if (newThumbnailHeight > MIN_SIDE_PANE_WIDTH) {
                self.thumbnailZoomOutButton.isEnabled = false
            } else {
                self.thumbnailZoomOutButton.isEnabled = true
            }
            if ((scaling - 0.1) < 0.3) {
                self.thumbnailZoomInButton.isEnabled = false
            } else {
                self.thumbnailZoomInButton.isEnabled = true
            }
            var labelHeight = 0.0
            if (self.isDisplayPageSize) {
                labelHeight = 56.0
            } else {
                labelHeight = 41.5
            }
            let  cellHeight = thumbnailSize.height + labelHeight
            var thumbSize: NSSize = .zero
            if (scaling != nil && scaling > 0) {
                thumbSize = NSMakeSize(thumbnailSize.width * scaling.cgFloat, cellHeight * scaling.cgFloat)
            } else {
                thumbSize = NSMakeSize(thumbnailSize.width, cellHeight)
            }
            return thumbSize.height
            
    //        NSSize cellSize = NSMakeSize([[tv tableColumnWithIdentifier:IMAGE_COLUMNID] width], fmin(thumbSize.height, roundedThumbnailSize));
    //        if (thumbSize.height < [tv rowHeight])
    //            return [tv rowHeight];
    //        else if (thumbSize.width / thumbSize.height < cellSize.width / cellSize.height)
    //            return cellSize.height;
    //        else
    //            return fmax([tv rowHeight], fmin(cellSize.width, thumbSize.width) * thumbSize.height / thumbSize.width);
        } else if tableView.isEqual(to: self.snapshotTableView) {
            let scaling = UserDefaults.standard.float(forKey: "KMSnapshotSizeScalingKey")
    //        NSSize snapshotSize = [[[[rightSideController.snapshotArrayController arrangedObjects] objectAtIndex:row] thumbnail] size];
            let snapshotSize = CGSizeMake(120, 63)

            var newScaling = scaling + 0.1
            let newSnapshotHeight = snapshotSize.width * newScaling.cgFloat;
            if (newSnapshotHeight > MIN_SIDE_PANE_WIDTH) {
                self.snapshotNormalZoomInButton.isEnabled = false
            } else {
                self.snapshotNormalZoomInButton.isEnabled = true
            }
            if ((scaling - 0.1) < 0.3 || (newSnapshotHeight < 150.0)) {
                self.snapshotNormalZoomOutButton.isEnabled = false
            } else {
                self.snapshotNormalZoomOutButton.isEnabled = true
            }

            let cellHeight = snapshotSize.height + 24.0
            var thumbSize: NSSize = .zero
            if (scaling > 0) {
                thumbSize = NSMakeSize(snapshotSize.width * scaling.cgFloat, cellHeight * scaling.cgFloat)
            } else {
                thumbSize = NSMakeSize(snapshotSize.width, cellHeight)
            }
            return thumbSize.height
        } else if (tableView.isEqual(to: self.findTableView)) {
            return 40.0
        } else if tableView.isEqual(to: self.groupedFindTableView) {
            return 16
        }
        return tableView.rowHeight
    }
    
    func tableView(_ tableView: NSTableView, rowViewForRow row: Int) -> NSTableRowView? {
        if (tableView.isEqual(to: self.findTableView)) {
            let rowView = KMBotaTableRowView()
            return rowView
        } else if tableView.isEqual(to: self.groupedFindTableView) {
            let rowView = KMGroupFindTableRowView()
            rowView.totalNumber = self.groupSearchResults.first?.datas.count ?? 0
            let model = self.groupSearchResults[row]
            rowView.number = model.datas.count
            rowView.pageIndex = Int(model.selectionPageIndex) + 1
            return rowView
        }
        return nil
    }
    
    func tableViewSelectionIsChanging(_ notification: Notification) {
        
    }
    func tableViewSelectionDidChange(_ notification: Notification) {
//        if ([[aNotification object] isEqual:leftSideController.findTableView] || [[aNotification object] isEqual:leftSideController.groupedFindTableView]) {
//            [self updateFindResultHighlightsForDirection:NSDirectSelection];
//
//            if ([self interactionMode] == SKPresentationMode && [[NSUserDefaults standardUserDefaults] boolForKey:SKAutoHidePresentationContentsKey])
//                [self hideLeftSideWindow];
//        } else
        if self.findTableView.isEqual(to: notification.object) {
            let row = self.findTableView.selectedRow
            if row >= 0 {
                let model = self.searchResults[row]
                if model.selection != nil {
                    self.listView.go(to: model.selection, animated: true)
                    self.listView.setHighlightedSelection(model.selection, animated: true)
                    self.listView.setNeedsDisplayAnnotationViewForVisiblePages()
                }
            }
        } else if self.thumbnailTableView.isEqual(to: notification.object) {
//            if (mwcFlags.updatingThumbnailSelection == 0) {
            let row = self.thumbnailTableView.selectedRow
            let curPage = self.listView.document.index(for: self.listView.currentPage())
            
            if (row != -1 && row != curPage) {
//                [pdfView goToPage:[[pdfView document] pageAtIndex:row]];
                self.listView.go(toPageIndex: row, animated: true)
            }
                
//                if ([self interactionMode] == SKPresentationMode && [[NSUserDefaults standardUserDefaults] boolForKey:SKAutoHidePresentationContentsKey])
//                    [self hideLeftSideWindow];
                
//                thumbnailSelectCount = row;
//            var rowIndexSet = IndexSet()
//            for i in 0 ..< self.thumbnailTableView.numberOfRows {
//                rowIndexSet.insert(i)
//            }
//            self.thumbnailTableView.reloadData(forRowIndexes: rowIndexSet, columnIndexes: IndexSet(integer: 0))
//            }
            let view = self.thumbnailTableView.view(atColumn: 0, row: self.preThumbnailRow, makeIfNecessary: false) as? KMThumbnailTableviewCell
            view?.isSelectCell = false
            
            let view2 = self.thumbnailTableView.view(atColumn: 0, row: row, makeIfNecessary: false) as? KMThumbnailTableviewCell
            view2?.isSelectCell = true
            
            self.preThumbnailRow = row
        }
//        else if ([[aNotification object] isEqual:rightSideController.snapshotTableView]) {
//            NSInteger row = [rightSideController.snapshotTableView selectedRow];
//            [selectCellList removeAllObjects];
//            [selectCellList addObject:[NSString stringWithFormat:@"%ld",row]];
//            if (row != -1) {
//                SKSnapshotWindowController *controller = [[rightSideController.snapshotArrayController arrangedObjects] objectAtIndex:row];
//                if ([[controller window] isVisible])
//                    [[controller window] orderFront:self];
//            }
//            NSMutableIndexSet *rowIndexSet = [[[NSMutableIndexSet alloc] init] autorelease];
//            for (NSInteger i = 0; i < rightSideController.snapshotTableView.numberOfRows; i ++) {
//                [rowIndexSet addIndex:i];
//            }
//            NSMutableIndexSet *columnIndexSet = [[[NSMutableIndexSet alloc] init] autorelease];
//            [columnIndexSet addIndex:0];
//            [rightSideController.snapshotTableView reloadDataForRowIndexes:rowIndexSet columnIndexes:columnIndexSet];
//
//        }
    }
    
    func tableView(_ tableView: NSTableView, validateDrop info: NSDraggingInfo, proposedRow row: Int, proposedDropOperation dropOperation: NSTableView.DropOperation) -> NSDragOperation {
        if dropOperation == .on || tableView.isEqual(to: self.thumbnailTableView) == false {
            return NSDragOperation(rawValue: 0)
        }
        let pboard = info.draggingPasteboard
        if (pboard.availableType(from: [.localDraggedTypes]) != nil) {
            return .move
        } else if (pboard.availableType(from: [.fileURL]) != nil) && tableView.isEqual(to: self.thumbnailTableView) {
            guard let pbItems = pboard.pasteboardItems else {
                return NSDragOperation(rawValue: 0)
            }
//            guard let _allowedFileTypes = self.kmAllowedFileTypes else {
//                return .generic
//            }
            
            var hasValidFile = false
            for item in pbItems {
                guard let data = item.string(forType: .fileURL), let _url = URL(string: data) else {
                    continue
                }
                let type = _url.pathExtension.lowercased()
//                if (_allowedFileTypes.contains(type)) {
                    hasValidFile = true
//                    break
//                }
            }
            
            if (!hasValidFile) {
                return NSDragOperation(rawValue: 0)
            }
         }
        return NSDragOperation(rawValue: 0)
    }
    
    func tableView(_ tableView: NSTableView, acceptDrop info: NSDraggingInfo, row: Int, dropOperation: NSTableView.DropOperation) -> Bool {
        var result = false
        if tableView.isEqual(to: self.thumbnailTableView) == false {
            return result
        }

//        let pasteboard = info.draggingPasteboard
//
//        if pasteboard.availableType(from: [.localDraggedTypes]) {
//            result = true
//            let rowData = pasteboard.data(forType: .localDraggedTypes)
//            let rowIndexes = NSKeyedUnarchiver.unarchiveObject(with: rowData!)
//            NSData *urlData = [pasteboard dataForType:KPDFThumbnailDoucumentURLForDraggedTypes];
//            NSString *url = [NSKeyedUnarchiver unarchiveObjectWithData:urlData];
//            if(![url isEqualToString:[pdfView document].documentURL.absoluteString] && url) {
//                if ([pasteboard availableTypeFromArray:[NSArray arrayWithObject:NSFilenamesPboardType]]){
//                    NSArray *fileNames = [pasteboard propertyListForType:NSFilenamesPboardType];
//                    if (fileNames.count == 1) {
//                        NSString *path = fileNames.firstObject;
//                        NSString *pathExtension = [path.pathExtension lowercaseString];
//                        if ([pathExtension isEqualToString:@"pdf"]) {
//                            __block NSInteger index = row;
//                            __block NSMutableIndexSet *insertIndexSet = [[[NSMutableIndexSet alloc] init] autorelease];
//                            PDFDocument *pdf = [[[PDFDocument alloc] initWithURL:[NSURL fileURLWithPath:path]] autorelease];
//                            if ([pdf isEncrypted]) {
//                                KMDecryptWindowController *vc = [[KMDecryptWindowController alloc] init];
//                                vc.filePath = url;
//                                [vc beginSheetModalForWindow:self.window completionHandler:^(NSString *password) {
//                                    if (password) {
//                                        [pdf unlockWithPassword:password];
//                                        for(NSUInteger i=0; i<pdf.pageCount;i++) {
//                                            PDFPage *page = [[pdf pageAtIndex:i] copy];
//                                            [self.pdfView.document insertPage:page atIndex:index];
//                                            [insertIndexSet addIndex:index];
//                                            index++;
//                                            [page release];
//                                        }
//                                        [self insertPages:insertIndexSet pageAtIndex:(index-1)];
//                                    }
//                                }];
//                                [vc release];
//                            } else {
//                                for(NSUInteger i=0; i<pdf.pageCount;i++) {
//                                    PDFPage *page = [[pdf pageAtIndex:i] copy];
//                                    [self.pdfView.document insertPage:page atIndex:index];
//                                    [insertIndexSet addIndex:index];
//                                    index++;
//                                    [page release];
//                                }
//                                [self insertPages:insertIndexSet pageAtIndex:(index-1)];
//                            }
//                            return YES;
//                        }
//                    }
//                }
//            }
//            __block NSInteger pageIndex = 0;
//            __block NSMutableArray *pages = [NSMutableArray array];
//            [rowIndexes enumerateIndexesUsingBlock:^(NSUInteger idx, BOOL * _Nonnull stop) {
//                PDFPage *page = [[[pdfView document] pageAtIndex:idx] copy];
//                [pages addObject:page];
//                [page release];
//            }];
//            PDFPage *toPage = nil;
//            if (row < (NSInteger)pdfView.document.pageCount) {
//                toPage = [pdfView.document pageAtIndex:row];
//            }
//           __block NSInteger toPageIndex = 0;
//            if (toPage) {
//                toPageIndex = [pdfView.document indexForPage:toPage];
//            } else {
//                toPageIndex = pdfView.document.pageCount;
//            }
//            for(NSUInteger i = 0;i<pages.count;i++) {
//                PDFPage *page = pages[i];
//                [pdfView.document insertPage:page atIndex:toPageIndex+i];
//                pageIndex += 1;
//                [self.pdfView goToPage:page];
//            }
//            [self.pdfView layoutDocumentView];
//            __block NSMutableArray *deletepages = [NSMutableArray array];
//            [rowIndexes enumerateIndexesWithOptions:NSEnumerationReverse usingBlock:^(NSUInteger idx, BOOL * _Nonnull stop) {
//                if((NSInteger)idx < toPageIndex) {
//                    if((idx+pageIndex) < pdfView.document.pageCount) {
//                        PDFPage *page = [[pdfView document] pageAtIndex:idx];
//                        [deletepages addObject:page];
//                        [pdfView.document removePageAtIndex:idx];
//                    }
//                } else {
//                    if((idx+pageIndex) < pdfView.document.pageCount) {
//                        PDFPage *page = [[pdfView document] pageAtIndex:idx+pageIndex];
//                        [deletepages addObject:page];
//                        [pdfView.document removePageAtIndex:idx+pageIndex];
//                    }
//                }
//            }];
//            [[[[self document] undoManager] prepareWithInvocationTarget:self] undoClick];
//            [self.pageLabels setArray:[[self.pdfView document] pageLabels]];
//            [self.pdfView layoutDocumentView];
//            [self resetThumbnails];
//
//        } else if ([pasteboard availableTypeFromArray:[NSArray arrayWithObject:NSFilenamesPboardType]] && [tableView isEqual:leftSideController.thumbnailTableView]) {
//            if (![[IAPProductsManager defaultManager] isAvailableAllFunction]) {
//                [[KMPurchaseCompareWindowController sharedInstance] showWindow:nil];
//
//                return NO;
//            }
//
//            NSArray *fileNames = [pasteboard propertyListForType:NSFilenamesPboardType];
//            NSMutableIndexSet *insertIndexSet = [[[NSMutableIndexSet alloc] init] autorelease];
//            __block NSInteger index = row;
//
//            if (fileNames.count == 1) {
//                NSString *path = fileNames.firstObject;
//                NSString *pathExtension = [path.pathExtension lowercaseString];
//                if ([pathExtension isEqualToString:@"pdf"]) {
//                    PDFDocument *pdf = [[[PDFDocument alloc] initWithURL:[NSURL fileURLWithPath:path]]autorelease];
//                    if ([pdf isEncrypted]) {
//                        KMDecryptWindowController *vc = [[KMDecryptWindowController alloc] init];
//                        vc.filePath = path;
//                        [vc beginSheetModalForWindow:self.window completionHandler:^(NSString *password) {
//                            if (password) {
//                                [pdf unlockWithPassword:password];
//                                for (NSUInteger i = 0; i< pdf.pageCount; i++) {
//                                    PDFPage *page = [[pdf pageAtIndex:i] copy];
//                                    [self.pdfView.document insertPage:page atIndex:index];
//                                    [insertIndexSet addIndex:index];
//                                    index++;
//                                    [page release];
//                                }
//                                [self insertPages:insertIndexSet pageAtIndex:(index-1)];
//                            }
//                        }];
//                        [vc release];
//                    } else {
//                        for (NSUInteger i = 0; i < pdf.pageCount; i++) {
//                            PDFPage * page = [[pdf pageAtIndex:i] copy];
//                            [self.pdfView.document insertPage:page atIndex:index];
//                            [insertIndexSet addIndex:index];
//                            index++;
//                            [page release];
//                        }
//                        [self insertPages:insertIndexSet pageAtIndex:(index-1)];
//
//                    }
//                } else if ([[KMImageToPDFMethod supportedImageTypes] containsObject:pathExtension]) {
//                    NSImage *image = [[[NSImage alloc] initWithContentsOfFile:path] autorelease];
//                    PDFPage * page = [[[PDFPage alloc] initWithImage:image] autorelease];
//                    [pdfView.document insertPage:page atIndex:index];
//                    [insertIndexSet addIndex:index];
//                    [self insertPages:insertIndexSet pageAtIndex:(index-1)];
//                }
//                result = YES;
//            } else {
//                result = NO;
//            }
//        }
        return result == false
    }
    
    func tableView(_ tableView: NSTableView, writeRowsWith rowIndexes: IndexSet, to pboard: NSPasteboard) -> Bool {
        if tableView.isEqual(to: self.thumbnailTableView) {
//            let idx = rowIndexes.first
//            if (idx != NSNotFound && [[pdfView document] isLocked] == NO) {
//                PDFPage *page = [[pdfView document] pageAtIndex:idx];
//                NSString *fileExt = nil;
//                NSData *tiffData = [page TIFFDataForRect:[page boundsForBox:[pdfView displayBox]]];
//
//                if ([[pdfView document] allowsPrinting]) {
//                    NSData *pdfData = [page dataRepresentation];
//                    fileExt = @"pdf";
//                    [pboard declareTypes:[NSArray arrayWithObjects:NSPasteboardTypePDF, NSPasteboardTypeTIFF,NSFilenamesPboardType, NSFilesPromisePboardType, KPDFThumbnailLocalForDraggedTypes,KPDFThumbnailDoucumentURLForDraggedTypes,nil] owner:self];
            
//                    [pboard setData:pdfData forType:NSPasteboardTypePDF];
                    
//                    NSData *zNSIndexSetData = [NSKeyedArchiver archivedDataWithRootObject:rowIndexes];
                    
//                    [pboard setData:zNSIndexSetData forType:KPDFThumbnailLocalForDraggedTypes];
                    
//                    NSData *documentURL = [NSKeyedArchiver archivedDataWithRootObject:[[pdfView document].documentURL absoluteString]];
//                    NSString *docmentName = [[[pdfView.document.documentURL path] lastPathComponent] stringByDeletingPathExtension];
//                    __block NSMutableString *pagesName = nil;
//                    if (rowIndexes.count > 1) {
//                        pagesName = [NSMutableString stringWithString:@" pages"];
//
//                    } else {
//                        pagesName = [NSMutableString stringWithString:@" page"];
//
//                    }
//                    NSString * tFileName = [NSString stringWithFormat:@"%@ %@",pagesName,[self fileNameWithSelectedPages:rowIndexes]];
//                    PDFDocument * pdf = [[[PDFDocument alloc] init] autorelease];
//                    [rowIndexes enumerateIndexesUsingBlock:^(NSUInteger idx, BOOL * _Nonnull stop) {
//                        PDFPage *copyPage = [[pdfView.document pageAtIndex:idx] copy];
//                        [pdf insertPage:copyPage atIndex:pdf.pageCount];
//                        [copyPage release];
//                    }];
//                    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
//                    NSString *cachesDir = [paths objectAtIndex:0];
//                    docmentName = [NSString stringWithFormat:@"%@%@",docmentName,tFileName];
//                    if (docmentName.length > 50) {
//                        [docmentName substringWithRange:NSMakeRange(0, 50)];
//                    }
//                    cachesDir = [[cachesDir stringByAppendingPathComponent:docmentName] stringByAppendingPathExtension:@"pdf"];
//
//                    BOOL success = [pdf writeToFile:cachesDir];
//                    if (success) {
//                        [pboard setPropertyList:@[cachesDir] forType:NSFilenamesPboardType];
//                    }else{
//                        [pboard setPropertyList:@[@""] forType:NSFilenamesPboardType];
//                    }
//                    [pboard setData:documentURL forType:KPDFThumbnailDoucumentURLForDraggedTypes];
//                } else {
//                    fileExt = @"tiff";
//                    [pboard declareTypes:[NSArray arrayWithObjects:NSPasteboardTypeTIFF, NSFilesPromisePboardType, nil] owner:self];
//                }
//                [pboard setData:tiffData forType:NSPasteboardTypeTIFF];
//                [pboard setPropertyList:[NSArray arrayWithObject:fileExt] forType:NSFilesPromisePboardType];
            
            let data: Data = try! NSKeyedArchiver.archivedData(withRootObject: rowIndexes, requiringSecureCoding: true)
            pboard.declareTypes([.localDraggedTypes], owner: self)
            pboard.setData(data, forType: .localDraggedTypes)
                return true
//            }
        }
//        else if ([tv isEqual:rightSideController.snapshotTableView]) {
//            NSUInteger idx = [rowIndexes firstIndex];
//            if (idx != NSNotFound) {
//                SKSnapshotWindowController *snapshot = [self objectInSnapshotsAtIndex:idx];
//                [pboard declareTypes:[NSArray arrayWithObjects:NSPasteboardTypeTIFF, NSFilesPromisePboardType, nil] owner:self];
//                [pboard setData:[[snapshot thumbnailWithSize:0.0] TIFFRepresentation] forType:NSPasteboardTypeTIFF];
//                [pboard setPropertyList:[NSArray arrayWithObject:@"tiff"] forType:NSFilesPromisePboardType];
//                return YES;
//            }
//        }
        return false
    }
    
    /*
     
     #pragma mark dragging

     - (NSArray *)tableView:(NSTableView *)tv namesOfPromisedFilesDroppedAtDestination:(NSURL *)dropDestination forDraggedRowsWithIndexes:(NSIndexSet *)rowIndexes {
         if ([tv isEqual:leftSideController.thumbnailTableView]) {
             __block NSMutableArray *fileURLArray = [NSMutableArray array];
             if (rowIndexes.count > 1) {
                 NSString *docmentName = @"";
                 NSString * tFileName = [NSString stringWithFormat:@"%@",[self fileNameWithSelectedPages:rowIndexes]];
                 PDFDocument *pdf = [[[PDFDocument alloc] init] autorelease];
                 [rowIndexes enumerateIndexesUsingBlock:^(NSUInteger idx, BOOL * _Nonnull stop) {
                     if (idx != NSNotFound && [[pdfView document] isLocked] == NO) {
                         PDFPage *copyPage = [[[pdfView document] pageAtIndex:idx] copy];
                         [pdf insertPage:copyPage atIndex:pdf.pageCount];
                         [copyPage release];
                     }
                 }];
                 NSURL *fileURL = [[[dropDestination URLByAppendingPathComponent:tFileName] URLByAppendingPathExtension:@"pdf"] uniqueFileURL];
                 docmentName = fileURL.path;
                 BOOL success = [pdf writeToFile:docmentName];
                 if(success) {
                     [fileURLArray addObject:[fileURL lastPathComponent]];
                 }
             } else {
                 PDFPage *page = [[pdfView document] pageAtIndex:rowIndexes.firstIndex];
                 NSURL *fileURL = [dropDestination URLByAppendingPathComponent:[self draggedFileNameForPage:page]];
                 NSString *pathExt = nil;
                 NSData *data = nil;
                 
                 if ([[pdfView document] allowsPrinting]) {
                     pathExt = @"pdf";
                     data = [page dataRepresentation];
                 } else {
                     pathExt = @"tiff";
                     data = [page TIFFDataForRect:[page boundsForBox:[pdfView displayBox]]];
                 }
                 
                 fileURL = [[fileURL URLByAppendingPathExtension:pathExt] uniqueFileURL];
                 if ([data writeToURL:fileURL atomically:YES]) {
                     [fileURLArray addObject:[fileURL lastPathComponent]];
                 }
             }
             return fileURLArray;
         } else if ([tv isEqual:rightSideController.snapshotTableView]) {
             NSUInteger idx = [rowIndexes firstIndex];
             if (idx != NSNotFound) {
                 SKSnapshotWindowController *snapshot = [self objectInSnapshotsAtIndex:idx];
                 PDFPage *page = [[pdfView document] pageAtIndex:[snapshot pageIndex]];
                 NSURL *fileURL = [[dropDestination URLByAppendingPathComponent:[self draggedFileNameForPage:page]] URLByAppendingPathExtension:@"tiff"];
                 fileURL = [fileURL uniqueFileURL];
                 if ([[[snapshot thumbnailWithSize:0.0] TIFFRepresentation] writeToURL:fileURL atomically:YES])
                     return [NSArray arrayWithObjects:[fileURL lastPathComponent], nil];
             }
         }
         return [NSArray array];
     }

     - (void)tableView:(NSTableView *)tv sortDescriptorsDidChange:(NSArray *)oldDescriptors {
         if ([tv isEqual:leftSideController.groupedFindTableView]) {
             [leftSideController.groupedFindArrayController setSortDescriptors:[tv sortDescriptors]];
         }
     }



     #pragma mark NSTableView delegate protocol
     - (void)tableViewColumnDidResize:(NSNotification *)aNotification {
         if ([[[[aNotification userInfo] objectForKey:@"NSTableColumn"] identifier] isEqualToString:IMAGE_COLUMNID]) {
             if ([[aNotification object] isEqual:leftSideController.thumbnailTableView]) {
                 [leftSideController.thumbnailTableView noteHeightOfRowsWithIndexesChanged:[NSIndexSet indexSetWithIndexesInRange:NSMakeRange(0, [leftSideController.thumbnailTableView numberOfRows])]];
             } else if ([[aNotification object] isEqual:rightSideController.snapshotTableView]) {
                 [rightSideController.snapshotTableView noteHeightOfRowsWithIndexesChanged:[NSIndexSet indexSetWithIndexesInRange:NSMakeRange(0, [rightSideController.snapshotTableView numberOfRows])]];
             }
         }
     }

     - (void)tableView:(NSTableView *)tv deleteRowsWithIndexes:(NSIndexSet *)rowIndexes {
         if (![[IAPProductsManager defaultManager] isAvailableAllFunction]) {
             [[KMPurchaseCompareWindowController sharedInstance] showWindow:nil];
             return;
         }
         if ([tv isEqual:rightSideController.snapshotTableView]) {
             NSArray *controllers = [[rightSideController.snapshotArrayController arrangedObjects] objectsAtIndexes:rowIndexes];
             [controllers makeObjectsPerformSelector:@selector(close)];
         } else if ([tv isEqual:leftSideController.thumbnailTableView]) {
             [rowIndexes enumerateIndexesWithOptions:NSEnumerationReverse usingBlock:^(NSUInteger idx, BOOL * _Nonnull stop) {
                 if (idx >= [[pdfView document] pageCount]) {
                     return;
                 }
                 for (PDFAnnotation *item in [[[pdfView document] pageAtIndex:idx] notes]){
                     [pdfView removeAnnotation:item];
                 }
                 PDFPage *page = [[pdfView document] pageAtIndex:idx];
                 [[[[self document] undoManager] prepareWithInvocationTarget:self] insertPage:page pageAtIndex:idx];
                 [[pdfView document] removePageAtIndex:idx];
                 
             }];
             [pdfView layoutDocumentView];
             [pageLabels setArray:[[pdfView document] pageLabels]];
             [self resetThumbnails];
             NSUInteger idx = [rowIndexes firstIndex];
             NSInteger index = MIN(idx, [[pdfView document] pageCount]-1);
             [pdfView goToPage:[[pdfView document] pageAtIndex:index]];
         }
     }

     - (void)insertPage:(PDFPage*)page pageAtIndex:(NSInteger)index {
         [[[[self document] undoManager] prepareWithInvocationTarget:self] tableView:leftSideController.thumbnailTableView deleteRowsWithIndexes:[NSIndexSet indexSetWithIndex:index]];
         [[pdfView document] insertPage:page atIndex:index];
         [pdfView layoutDocumentView];
         [pageLabels setArray:[[pdfView document] pageLabels]];
         [self resetThumbnails];
         NSInteger pageIndex = MIN((NSUInteger)index, [[pdfView document] pageCount]-1);
         [pdfView goToPage:[[pdfView document] pageAtIndex:pageIndex]];
     }



     - (void)tableView:(NSTableView *)tv copyRowsWithIndexes:(NSIndexSet *)rowIndexes {
         if (![IAPProductsManager defaultManager].isAvailableAllFunction) {
             [[KMPurchaseCompareWindowController sharedInstance] showWindow:nil];
             return;
         }
         if ([tv isEqual:leftSideController.thumbnailTableView]) {
             self.copysPages = [NSMutableArray array];
             if ([[pdfView document] isLocked] == NO) {
                 [rowIndexes enumerateIndexesUsingBlock:^(NSUInteger idx, BOOL * _Nonnull stop) {
                     PDFPage *page = [[pdfView document] pageAtIndex:idx];
                     [self.copysPages addObject:page];
                 }];
     //            NSData *tiffData = [page TIFFDataForRect:[page boundsForBox:[pdfView displayBox]]];
     //            NSPasteboard *pboard = [NSPasteboard generalPasteboard];
     //            NSPasteboardItem *pboardItem = [[[NSPasteboardItem alloc] init] autorelease];
     //            if ([[pdfView document] allowsPrinting])
     //                [pboardItem setData:[page dataRepresentation] forType:NSPasteboardTypePDF];
     //            [pboardItem setData:tiffData forType:NSPasteboardTypeTIFF];
     //            [pboard clearContents];
     //            [pboard writeObjects:[NSArray arrayWithObjects:pboardItem, nil]];
             }
         } else if ([tv isEqual:leftSideController.findTableView]) {
             NSMutableString *string = [NSMutableString string];
             [rowIndexes enumerateIndexesUsingBlock:^(NSUInteger idx, BOOL *stop) {
                 PDFSelection *match = [searchResults objectAtIndex:idx];
                 [string appendString:@"* "];
                 [string appendFormat:NSLocalizedString(@"Page %@", @""), [match firstPageLabel]];
                 [string appendFormat:@": %@\n", [[match contextString] string]];
             }];
             NSPasteboard *pboard = [NSPasteboard generalPasteboard];
             [pboard clearContents];
             [pboard writeObjects:[NSArray arrayWithObjects:string, nil]];
         } else if ([tv isEqual:leftSideController.groupedFindTableView]) {
             NSMutableString *string = [NSMutableString string];
             [rowIndexes enumerateIndexesUsingBlock:^(NSUInteger idx, BOOL *stop) {
                 SKGroupedSearchResult *result = [groupedSearchResults objectAtIndex:idx];
                 NSArray *matches = [result matches];
                 [string appendString:@"* "];
                 [string appendFormat:NSLocalizedString(@"Page %@", @""), [[result page] displayLabel]];
                 [string appendString:@": "];
                 [string appendFormat:NSLocalizedString(@"%ld Results", @""), (long)[matches count]];
                 [string appendFormat:@":\n\t%@\n", [[matches valueForKeyPath:@"contextString.string"] componentsJoinedByString:@"\n\t"]];
             }];
             NSPasteboard *pboard = [NSPasteboard generalPasteboard];
             [pboard clearContents];
             [pboard writeObjects:[NSArray arrayWithObjects:string, nil]];
         }
     }

     - (void)tableView:(NSTableView *)tv rotateRowsWithIndexes:(NSIndexSet *)rowIndexes {
         if ([tv isEqual:leftSideController.thumbnailTableView]) {
             [rowIndexes enumerateIndexesUsingBlock:^(NSUInteger idx, BOOL * _Nonnull stop) {
                 if (idx != NSNotFound) {
                     PDFPage *page = [[pdfView document] pageAtIndex:idx];
                     [[[[self document] undoManager] prepareWithInvocationTarget:self] rotatePage:page pageAtIndex:idx];
                     if (page.rotation == 0) {
                         [page setRotation:90];
                     } else if (page.rotation == 90){
                         [page setRotation:180];
                     } else if (page.rotation == 180){
                         [page setRotation:270];
                     } else if (page.rotation == 270){
                         [page setRotation:0];
                     }
                     [pdfView layoutDocumentView];
                     [self resetThumbnails];
                     NSInteger pageIndex = MIN(idx, [[pdfView document] pageCount]-1);
                     [pdfView goToPage:[[pdfView document] pageAtIndex:pageIndex]];
                 }
                 [leftSideController.thumbnailTableView selectRowIndexes:rowIndexes byExtendingSelection:YES];
             }];
         }
     }

     - (void)rotatePage:(PDFPage*)page pageAtIndex:(NSInteger)index {
         [[[[self document] undoManager] prepareWithInvocationTarget:self] tableView:leftSideController.thumbnailTableView rotateRowsWithIndexes:[NSIndexSet indexSetWithIndex:index]];
         if (page.rotation == 0) {
             [page setRotation:270];
         } else if (page.rotation == 90){
             [page setRotation:0];
         } else if (page.rotation == 180){
             [page setRotation:90];
         } else if (page.rotation == 270){
             [page setRotation:180];
         }
         [pdfView layoutDocumentView];
         [self resetThumbnails];
     }

     - (void)tableView:(NSTableView *)tv shareRowsWithIndexes:(NSIndexSet *)rowIndexes {
         if ([tv isEqual:leftSideController.thumbnailTableView]) {
             NSUInteger idx = [rowIndexes firstIndex];
             if (idx != NSNotFound) {
                 PDFPage *page = [[pdfView document] pageAtIndex:idx];
                 NSString *fileName = [[[pdfView document] documentURL] lastPathComponent];
                 NSString *folderPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
                 NSString *filePath = [folderPath stringByAppendingPathComponent:[NSString stringWithFormat:@"Untitled"]];
                 filePath = [filePath stringByAppendingPathExtension:[fileName pathExtension]];
                 
                 [self fileWithPage:page atPath:filePath];
                 
                 if (rint(NSAppKitVersionNumber) < NSAppKitVersionNumber10_8) {
                     [KMMailHelper sendFileWithPaths:[NSArray arrayWithObject:filePath]];
                 } else {
                     NSSharingService *service = [NSSharingService sharingServiceNamed:NSSharingServiceNameComposeEmail];
                     [service performWithItems:[NSArray arrayWithObject:[NSURL fileURLWithPath:filePath]]];
                 }
             }
         }
     }

     - (void)tableView:(NSTableView *)tv extractRowsWithIndexes:(NSIndexSet *)rowIndexes {
         if ([tv isEqual:leftSideController.thumbnailTableView]) {
             NSMutableArray *pages = [NSMutableArray array];
             [leftSideController.thumbnailTableView.selectedRowIndexes enumerateIndexesUsingBlock:^(NSUInteger idx, BOOL * _Nonnull stop) {
                 if (idx < self.pdfView.document.pageCount) {
                     [pages addObject:[self.pdfView.document pageAtIndex:idx]];
                 }
             }];
             NSString * fileName =  [self.pdfView.document getFileNameAccordingSelctPages:pages];
             KMSavePanelAccessoryController *saveAccessCtr = [[KMSavePanelAccessoryController alloc] init];
             NSSavePanel * outputSavePanel = [NSSavePanel savePanel];
             [outputSavePanel setAllowedFileTypes:[NSArray arrayWithObject:@"pdf"]];
             outputSavePanel.accessoryView = saveAccessCtr.view;
             [outputSavePanel setNameFieldStringValue:fileName];
             [outputSavePanel beginSheetModalForWindow:[self window]completionHandler:^(NSInteger result) {
                 if (result == NSModalResponseOK) {
                     [saveAccessCtr retain];
                     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
                         KMProgressWindowController * vc = [[[KMProgressWindowController alloc] init] autorelease];
     //                    [NSApp beginSheet:[vc window]
     //                       modalForWindow:self.window
     //                        modalDelegate:nil
     //                       didEndSelector:nil
     //                          contextInfo:NULL];
                         [self.window beginSheet:[vc window] completionHandler:^(NSModalResponse returnCode) {
                             
                         }];
                         NSString *saveFilePath = [[outputSavePanel URL] path];

                         dispatch_async(dispatch_get_global_queue(0, 0), ^{
                             
                             PDFDocument * pdf = [[[PDFDocument alloc] init] autorelease];
                             BOOL success = [pdf extractAsOneDocumentWithPages:pages savePath:saveFilePath];
                             dispatch_async(dispatch_get_main_queue(), ^{
                                 if (success) {
                                     if (saveAccessCtr.openAutomaticButton.state == NSControlStateValueOn) {
                                         [[NSDocumentController sharedDocumentController] openDocumentWithContentsOfURL:[outputSavePanel URL] display:YES completionHandler:^(NSDocument * _Nullable document, BOOL documentWasAlreadyOpen, NSError * _Nullable error) {
                                         }];
                                     } else {
                                         NSWorkspace *workspace = [NSWorkspace sharedWorkspace];
                                         NSURL *url = [NSURL fileURLWithPath:saveFilePath];
                                         [workspace activateFileViewerSelectingURLs:[NSArray arrayWithObject:url]];
                                     }
                                 }
                                 [NSApp endSheet:vc.window];
                                 [vc close];
                                 [saveAccessCtr release];
                             });
                         });
                     });
                 }
                 [saveAccessCtr release];
             }];
         }
     }

     - (void)fileWithPage:(PDFPage *)page atPath:(NSString *)filePath {
         NSData *data = [page dataRepresentation];
         PDFDocument *document = [[PDFDocument alloc] initWithData:data];
         
         [[NSFileManager defaultManager] removeItemAtPath:filePath error:nil];
         BOOL success =  [document writeToURL:[NSURL fileURLWithPath:filePath]];
         if (success) {
             NSWorkspace *workspace = [NSWorkspace sharedWorkspace];
             NSURL *url = [NSURL fileURLWithPath:filePath];
             [workspace activateFileViewerSelectingURLs:[NSArray arrayWithObject:url]];
         }
         
         [document release];
     */
}

// MARK: - NSOutlineViewDelegate, NSOutlineViewDataSource

/*
 
 func outlineView(_ outlineView: NSOutlineView, child index: Int, ofItem item: Any?) -> Any {
     if item is KMBOTAAnnotationSection {
         let section = item as? KMBOTAAnnotationSection
         return section!.annotations?[index] as Any
     } else if item is KMBOTAAnnotationItem {
         return item as Any
     } else {
         var tempArray: [KMBOTAAnnotationSection] = []
         for temp in self.data {
             if temp.annotations?.count != 0 {
                 tempArray.append(temp)
             }
         }
         let section = tempArray[index]
         return section as Any
     }
 }
 
 func outlineView(_ outlineView: NSOutlineView, viewFor tableColumn: NSTableColumn?, item: Any) -> NSView? {
     if item is KMBOTAAnnotationItem {
         let cell : KMAnnotationOutlineCellView = KMAnnotationOutlineCellView.init()
         cell.delegate = self
         cell.model = item as? KMBOTAAnnotationItem
         return cell
     } else if item is KMBOTAAnnotationSection {
         let section = item as? KMBOTAAnnotationSection
         
         let cell : KMAnnotationOutlineSectionView = KMAnnotationOutlineSectionView.init()
         cell.model = section
         return cell
     }
     return NSTableCellView()
 }
 
 func outlineView(_ outlineView: NSOutlineView, rowViewForItem item: Any) -> NSTableRowView? {
     let rowView = KMAnnotationOutlineRowView()
     if item is KMBOTAAnnotationItem {
         rowView.model = (item as? KMBOTAAnnotationItem)
     } else if item is KMBOTAAnnotationSection {
         rowView.section = (item as? KMBOTAAnnotationSection)
     }
     rowView.mouseDownAction = { [unowned self] view, event in
         if rowView.section != nil {
             let expanded = outlineView.isItemExpanded(outlineView.item(atRow: outlineView.selectedRow))
             if expanded {
                 outlineView.collapseItem(outlineView.item(atRow: outlineView.selectedRow), collapseChildren: true)
                 outlineView.reloadItem(outlineView.item(atRow: outlineView.selectedRow))
             } else {
                 outlineView.expandItem(outlineView.item(atRow: outlineView.selectedRow), expandChildren: true)
                 outlineView.reloadItem(outlineView.item(atRow: outlineView.selectedRow))
             }
         } else if rowView.model != nil {
             self.didSelectItem(view: rowView, event: event)
         }
     }
     
     rowView.rightMouseDownAction = { [unowned self] view, event in
         if rowView.section != nil {
             
         } else if rowView.model != nil {
             if !KMOCToolClass.arrayContains(array: self.selectItems, annotation: item) ||
                 self.selectItems.count == 1 {
                 self.selectItem(item: item as! KMBOTAAnnotationItem)
             }
             
             DispatchQueue.main.async {
                 self.delegate?.annotationOutlineView(self, rightMouseDownDidSelectView: view, evnet: event)
             }
         }
     }
     
     rowView.hoverCallback = { [unowned self] (mouseEntered, mouseBox) in
         self.outlineView.enumerateAvailableRowViews { view, row in
             if view is KMAnnotationOutlineRowView {
                 (view as? KMAnnotationOutlineRowView)?.model?.hover = false
                 (view as? KMAnnotationOutlineRowView)?.reloadData()
             }
         }
         if mouseEntered {
             rowView.model?.hover = true
         } else {
             rowView.model?.hover = false
         }
     }
     return rowView
 }
 
 func outlineView(_ outlineView: NSOutlineView, heightOfRowByItem item: Any) -> CGFloat {
     if item is KMBOTAAnnotationItem {
         return KMBOTAAnnotationTool.fetchCellHeight(annotation: (item as? KMBOTAAnnotationItem)!.annotation!, maxSize: CGSize(width: self.maxWidth - 16, height: 1000))
     } else if item is KMBOTAAnnotationSection {
         return 40
     } else {
         return 30
     }
 }
 
 func outlineViewSelectionDidChange(_ notification: Notification) {
     if self.outlineView.selectedRow == -1 {
         self.cancelSelect()
     }
 }
 
 func outlineView(_ outlineView: NSOutlineView, isItemExpandable item: Any) -> Bool {
     if item is KMBOTAAnnotationItem {
         return false
     } else if item is KMBOTAAnnotationSection {
         let section = item as? KMBOTAAnnotationSection
         return section!.annotations?.count ?? 0 > 0
     }
     return false
 }
 
 func outlineView(_ outlineView: NSOutlineView, shouldExpandItem item: Any) -> Bool {
     if let item = item as? KMBOTAAnnotationSection {
         if !item.isItemExpanded {
             item.isItemExpanded = true
             outlineView.animator().expandItem(item, expandChildren: true)
             return false
         }
     }
     return true
 }

 func outlineView(_ outlineView: NSOutlineView, shouldCollapseItem item: Any) -> Bool {
     if let item = item as? KMBOTAAnnotationSection {
         if item.isItemExpanded {
             item.isItemExpanded = false
             outlineView.animator().collapseItem(item, collapseChildren: true)
             return false
         }
     }
     return true
 }
 */

extension KMLeftSideViewController: NSOutlineViewDelegate, NSOutlineViewDataSource {
    func outlineView(_ outlineView: NSOutlineView, numberOfChildrenOfItem item: Any?) -> Int {
        if outlineView.isEqual(to: self.tocOutlineView) {
            let isLocked = self.listView.document?.isLocked ?? true
            if isLocked { // 文档不存在 或 已加锁
                return 0
            }
            if item == nil { // 第一层
                // 获取根
                guard let outline = self.listView.document.outlineRoot() else {
                    let view = self.tocOutlineView.enclosingScrollView!
                    let emptyVcSize =  self.leftSideEmptyVC.emptyOutlineView.frame.size
//
                    self.leftSideEmptyVC.emptyOutlineView.frame = NSMakeRect((view.frame.size.width-emptyVcSize.width)/2.0,(view.frame.size.height-emptyVcSize.height)/2.0, emptyVcSize.width, emptyVcSize.height)
                    self.leftSideEmptyVC.emptyOutlineView.autoresizingMask = [.minXMargin, .maxXMargin, .minYMargin, .maxYMargin]
                    self.tocOutlineView.enclosingScrollView?.documentView?.addSubview(self.leftSideEmptyVC.emptyOutlineView)
                    self.leftSideEmptyVC.deleteOutlineBtn.isEnabled = false
                    return 0
                }
                if outline.numberOfChildren == 0 {
//                    return 0
                }
                
                if self.isSearchOutlineMode { // 是否为搜索模块
                    if self._hasContainString(self.outlineSearchField.stringValue, rootOutline: outline) {
                        self.showSearchOutlineBlankState(false)
                    } else {
                        self.showSearchOutlineBlankState(true)
                        return 0
                    }
                } else {
                    if outline.numberOfChildren > 0 { // 有数据
                        self.leftSideEmptyVC.emptyOutlineView.removeFromSuperview()
                        self.leftSideEmptyVC.deleteOutlineBtn.isEnabled = true
                    } else { // 没有数据
                        let view = self.tocOutlineView.enclosingScrollView!
                        let emptyVcSize =  self.leftSideEmptyVC.emptyOutlineView.frame.size
    //
                        self.leftSideEmptyVC.emptyOutlineView.frame = NSMakeRect((view.frame.size.width-emptyVcSize.width)/2.0,(view.frame.size.height-emptyVcSize.height)/2.0, emptyVcSize.width, emptyVcSize.height)
                        self.leftSideEmptyVC.emptyOutlineView.autoresizingMask = [.minXMargin, .maxXMargin, .minYMargin, .maxYMargin]
                        self.tocOutlineView.enclosingScrollView?.documentView?.addSubview(self.leftSideEmptyVC.emptyOutlineView)
                        self.leftSideEmptyVC.deleteOutlineBtn.isEnabled = false
                        return 0
                    }
                }

                // 搜索按钮
                if outline.numberOfChildren > 0 {
                    self.outlineSearchButton.isEnabled = true
                } else {
                    self.outlineSearchButton.isEnabled = false
                }
                
                if (self.isSearchOutlineMode) {
                    var num = 0
                    for i in 0 ..< outline.numberOfChildren {
                        if let child = outline.child(at: i) {
                            if self._hasContainString(self.outlineSearchField.stringValue, rootOutline: child) {
                                num += 1
                            }
                        }
                    }
                    return num
                } else {
                    let array = self.listView.document.bookmarks() ?? [CPDFBookmark]()
                    var bookmarkNum = 0
                    if array.isEmpty == false {
                        bookmarkNum = 1
                    }
                    return Int(outline.numberOfChildren) + bookmarkNum
                }
            } else { // 第二层 +
                if self.isSearchOutlineMode {
                    if let data = item as? String, data == "Bookmarks" { // 书签group
                        return 0
                    } else if item is CPDFOutline { // 大纲
                        let child = item as! CPDFOutline
                        if child.numberOfChildren == 0 {
                            return 0
                        }
                        var num = 0
                        for i in 0 ..< child.numberOfChildren {
                            if let _child = child.child(at: i) {
                                if self._hasContainString(self.outlineSearchField.stringValue, rootOutline: _child) {
                                    num += 1
                                }
                            }
                        }
                        return num
                    } else if item is CPDFBookmark { // 书签
                        return 0
                    }
                } else {
                    if let data = item as? String, data == "Bookmarks" { // 书签group
                        return (self.listView.document?.bookmarks().count) ?? 0
                    } else if item is CPDFOutline { // 大纲
                        return Int((item as? CPDFOutline)?.numberOfChildren ?? 0)
                    } else if item is CPDFBookmark { // 书签
                        return 0
                    }
                }
            }
        } else if outlineView.isEqual(to: self.noteOutlineView) {
            var count = 0
            for section in self._annotations {
                if section.annotations?.count != 0 {
                    count += section.annotations!.count
                }
            }
//            if (item == nil){
//                NSInteger count = [[rightSideController.noteArrayController arrangedObjects] count];
                
                if (count < 1) {
//                    if (notes.count < 1) {
                    self.noteSearchButton.isEnabled = false
                    self.noteFilterButton.isEnabled = false
//                    }
                    self.noteOutlineView.usesAlternatingRowBackgroundColors = false
                    let view = self.noteOutlineView.enclosingScrollView!
                    var emptyVcSize =  self.leftSideEmptyVC.emptyAnnotationView.frame.size
                    self.leftSideEmptyVC.emptyAnnotationView.frame = NSMakeRect((view.frame.size.width-emptyVcSize.width)/2.0,(view.frame.size.height-emptyVcSize.height)/2.0, emptyVcSize.width, emptyVcSize.height)
                    
                    self.leftSideEmptyVC.emptyAnnotationView.autoresizingMask = [.minXMargin, .maxXMargin, .minYMargin, .maxYMargin]
                    self.noteOutlineView.enclosingScrollView?.documentView?.addSubview(self.leftSideEmptyVC.emptyAnnotationView)
                    self.leftSideEmptyVC.exportAnnotationBtn.isEnabled = false
                    self.leftSideEmptyVC.deleteAnnotationBtn.isEnabled = false
//
                    if (self.leftView.segmentedControl.selectedSegment == KMSelectedSegmentType.annotation.rawValue) {
                        self.noteHeaderView.isHidden = true
                        self.toolButtonBoxLayoutConstraint.constant = 40.0
                    }
                } else {
                    self.noteSearchButton.isEnabled = true
                    self.noteFilterButton.isEnabled = true

                    self.noteOutlineView.usesAlternatingRowBackgroundColors = false

                    self.leftSideEmptyVC.emptyAnnotationView.removeFromSuperview()
                    self.leftSideEmptyVC.exportAnnotationBtn.isEnabled = true
                    self.leftSideEmptyVC.deleteAnnotationBtn.isEnabled = true
//
                    if (self.leftView.segmentedControl.selectedSegment == KMSelectedSegmentType.annotation.rawValue) {
                        self.noteHeaderView.isHidden = false
                        self.toolButtonBoxLayoutConstraint.constant = 64.0
                    }
                }
                return count;
//            } else {
//                                return [item hasNoteText];
//            }
        }
        return 0
    }
    
    func outlineView(_ outlineView: NSOutlineView, child index: Int, ofItem item: Any?) -> Any {
        if outlineView.isEqual(to: self.tocOutlineView) {
            let isLocked = self.listView.document?.isLocked ?? true
            if isLocked { // 文档不存在 或 已加锁
                return ""
            }
            
            let array = self.listView.document.bookmarks() ?? [CPDFBookmark]()
            var bookmarkNum = 0
            if array.isEmpty == false {
                bookmarkNum = 1
            }
            if item == nil {
                if self.isSearchOutlineMode {
                    guard let outline = self.listView.document.outlineRoot() else {
                        return ""
                    }
                    if outline.numberOfChildren == 0 {
                        return ""
                    }
                    var array: [CPDFOutline] = []
                    for i in 0 ..< outline.numberOfChildren {
                        if let child = outline.child(at: i) {
                            if self._hasContainString(self.outlineSearchField.stringValue, rootOutline: child) {
                                array.append(child)
                            }
                        }
                    }
                    
                    if index < array.count {
                        return array[index]
                    }
                    return ""
                } else {
                    if index == 0 && bookmarkNum == 1 {
                        return "Bookmarks"
                    } else {
                        var _index = bookmarkNum == 1 ? index-1 : index
                        let outline = self.listView.document.outlineRoot()
                        var obj = outline?.child(at: UInt(_index))
                        return obj as Any
                    }
                }
            } else {
                if let data = item as? String, data == "Bookmarks" {
                    return array[index]
                } else if item is CPDFOutline {
                    return (item as! CPDFOutline).child(at: UInt(index))
                } else if item is CPDFBookmark {
                    return ""
                }
            }
        } else if outlineView.isEqual(to: self.noteOutlineView) {
//            if (item == nil)
//            {
//                return [[rightSideController.noteArrayController arrangedObjects] objectAtIndex:anIndex];
//    //            return [self.notes objectAtIndex:anIndex];
//            }
//            else
//                return [item noteText];
            var tempArray: [KMBOTAAnnotationItem] = []
            for secion in self._annotations {
                if secion.annotations?.count != 0 {
                    for _item in secion.annotations! {
                        tempArray.append(_item)
                    }
                }
            }
            return tempArray[index] as Any
        }
        return item
    }
    
    func outlineView(_ outlineView: NSOutlineView, objectValueFor tableColumn: NSTableColumn?, byItem item: Any?) -> Any? {
        if outlineView.isEqual(to: self.tocOutlineView) {
//            let tcID = tableColumn?.identifier.rawValue ?? ""
//            var ol = item as? CPDFOutline
//            if(tcID == LABEL_COLUMNID) {
//                if (self.isSearchOutlineMode) {
////                    NSString *roughString = [[ol label] stringByCollapsingWhitespaceAndNewlinesAndRemovingSurroundingWhitespaceAndNewlines]? : @"";
////                    NSArray *arr = [self allRangeOfRoughString:roughString searchString:self.leftSideController.outlineSearchField.stringValue];
////                    NSMutableAttributedString *attributeString = [[[NSMutableAttributedString alloc] initWithString:roughString] autorelease];
////                    for (NSUInteger i = 0; i <arr.count ; i++) {
////                        NSValue * rangeValue = arr[i];
////                        NSRange range = rangeValue.rangeValue;
////                        range.location += i * self.leftSideController.outlineSearchField.stringValue.length;
////                        [attributeString addAttribute:NSFontAttributeName value:[NSFont boldSystemFontOfSize:13] range:range];
////                    }
////                    [attributeString addAttribute:NSForegroundColorAttributeName value:[KMAppearance KMColor_Layout_H0] range:NSMakeRange(0, roughString.length)];
////                    return attributeString;
//                } else {
//                    var attributedString = NSMutableAttributedString()
////                    attributedString
//                    attributedString.append(.init(string: ol?.label ?? "", attributes: [.foregroundColor : KMAppearance.Layout.h0Color()]))
////                    NSString *roughString = [[ol label] stringByCollapsingWhitespaceAndNewlinesAndRemovingSurroundingWhitespaceAndNewlines]? : @"";
////                    NSDictionary *dictAttr1 = @{NSForegroundColorAttributeName:[KMAppearance KMColor_Layout_H0]};
////                    NSAttributedString *attr1 = [[NSAttributedString alloc]initWithString:roughString attributes:dictAttr1];
////                    [attributedString appendAttributedString:attr1];
//
//                    return attributedString
//                }
//
//            }
//                                                                                        else if([tcID isEqualToString:PAGE_COLUMNID]) {
//                NSMutableAttributedString *attributedString = [[[NSMutableAttributedString alloc]init] autorelease];
//                NSString *roughString = [ol pageLabel]? : @"";
//                NSDictionary *dictAttr1 = @{NSForegroundColorAttributeName:[KMAppearance KMColor_Layout_H0]};
//                NSAttributedString *attr1 = [[NSAttributedString alloc]initWithString:roughString attributes:dictAttr1];
//                [attributedString appendAttributedString:attr1];
//
//                return attributedString;
//            }
                                                                                        
        }
//        else if ([ov isEqual:rightSideController.noteOutlineView]) {
//            NSString *tcID = [tableColumn  identifier];
//            PDFAnnotation *note = item;
//            if (tableColumn == nil || [tcID isEqualToString:NOTE_COLUMNID])
//                return [note objectValue];
//            else if([tcID isEqualToString:TYPE_COLUMNID]){
//                NSString *noteType = [note type];
//                if ([note isKindOfClass:[PDFAnnotationButtonWidget class]]) {
//                    PDFAnnotationButtonWidget *buttonWidget = (PDFAnnotationButtonWidget *)note;
//                    if (buttonWidget.controlType == kPDFWidgetRadioButtonControl) {
//                        noteType = SKAnnotationFormRadioButtonKey;
//                    } else if (buttonWidget.controlType == kPDFWidgetCheckBoxControl){
//                        noteType = SKAnnotationFormCheckBoxKey;
//                    } else if (buttonWidget.controlType == kPDFWidgetPushButtonControl){
//                        noteType = SKAnnotationFormActionButtonKey;
//                    }
//                } else if ([note isKindOfClass:[PDFAnnotationTextWidget class]]){
//                    noteType = SKAnnotationFormTextFieldKey;
//                } else if ([note isKindOfClass:[PDFAnnotationChoiceWidget class]]){
//                    PDFAnnotationChoiceWidget *choiceWidget = (PDFAnnotationChoiceWidget *)note;
//                    if (choiceWidget.isListChoice) {
//                        noteType = SKAnnotationFormListMenuKey;
//                    } else {
//                        noteType = SKAnnotationFormComboBoxKey;
//                    }
//
//                }
//                 return [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithBool:note == [pdfView activeAnnotation]], SKAnnotationTypeImageCellActiveKey, noteType, SKAnnotationTypeImageCellTypeKey,[note color],SKAnnotationTypeImageCellColorKey, nil];
//            }
//            else if([tcID isEqualToString:COLOR_COLUMNID])
//                return [note type] ? [note color] : nil;
//            else if([tcID isEqualToString:PAGE_COLUMNID])
//                return [[note page] displayLabel];
//            else if([tcID isEqualToString:AUTHOR_COLUMNID])
//                return [note type] ? [note userName] : nil;
//            else if([tcID isEqualToString:DATE_COLUMNID])
//                return [note type] ? [note modificationDate] : nil;
//        }
        return nil
    }
    
    func outlineView(_ outlineView: NSOutlineView, viewFor tableColumn: NSTableColumn?, item: Any) -> NSView? {
        if outlineView.isEqual(to: self.tocOutlineView) {
            let cell = outlineView.makeView(withIdentifier: NSUserInterfaceItemIdentifier(rawValue: "KMTocTableCellView"), owner: self) as! KMTocTableCellView
            let tcID = tableColumn?.identifier.rawValue
            
            var title = ""
            var pageLabel = ""
            if let data = item as? String, data == "Bookmarks" {
                title = NSLocalizedString("Bookmarks", comment: "")
            } else if item is CPDFOutline {
                title = (item as! CPDFOutline).label
                pageLabel = "\(((item as! CPDFOutline).destination?.pageIndex ?? 0) + 1)"
            } else if item is CPDFBookmark {
                title = (item as! CPDFBookmark).label
                pageLabel = "\((item as! CPDFBookmark).pageIndex + 1)"
            }
            
            if tcID == LABEL_COLUMNID {
                if (self.isSearchOutlineMode) {
//                    NSString *roughString = [[ol label] stringByCollapsingWhitespaceAndNewlinesAndRemovingSurroundingWhitespaceAndNewlines];
                    let roughString = title
//                    NSArray *arr = [self allRangeOfRoughString:roughString searchString:self.leftSideController.outlineSearchField.stringValue];
//                    NSMutableAttributedString *attributeString = [[[NSMutableAttributedString alloc] initWithString:roughString] autorelease];
//
//                    for (NSUInteger i = 0; i <arr.count ; i++) {
//                        NSValue * rangeValue = arr[i];
//                        NSRange range = rangeValue.rangeValue;
//                        range.location += i * self.leftSideController.outlineSearchField.stringValue.length;
//                        [attributeString addAttribute:NSFontAttributeName value:[NSFont boldSystemFontOfSize:13] range:range];
//                    }
//                    cell.tocLabel.attributedStringValue = attributeString;
                    cell.tocLabel.stringValue = title
                } else {
                    cell.tocLabel.stringValue = title
                }
                cell.pageLabel.stringValue = pageLabel
            }
//                else if([tcID isEqualToString:PAGE_COLUMNID]) {
//                cell.pageLabel.stringValue = [ol pageLabel];
//            }
            return cell
        } else if outlineView.isEqual(to: self.noteOutlineView) {
            let model = item as! KMBOTAAnnotationItem
            let note = (item as! KMBOTAAnnotationItem).annotation!
            let cell = outlineView.makeView(withIdentifier: NSUserInterfaceItemIdentifier(rawValue: "KMNoteTableViewCell"), owner: self) as! KMNoteTableViewCell
            cell.cellNote = note
            
            let noteColor = note.color
            var noteType = note.type ?? ""
            var noteString = KMBOTAAnnotationTool.fetchContentLabelString(annotation: note)
//            NSString *pageString = [[note page] displayLabel] ? : @"";
            var pageString = "\((note.page?.pageIndex() ?? 0) + 1)"
            let formatter = DateFormatter()
            formatter.dateFormat = "hh:mm"
            var dateString = ""
            if let date = note.modificationDate() {
                dateString = formatter.string(from: date)
            }
            var authorString = note.userName() ?? ""
//            NSString *noteTextString = [note noteText].string ? : @"";
            var noteTextString = note.string() ?? ""
//
//            if([noteType isEqualToString:@"Redact"]) {
            
//                noteString = @"Redact";
//            }
//
            let timeKey = self.noteTypeDict["kKMNoteFilterAnnotationTimeKey"] as? Bool
            if timeKey == nil || timeKey == false {
//                if (date != nil) {
                    cell.timeLabel.stringValue =  dateString
//
//                } else {
//                    cell.timeLabel.stringValue = ""
//                }
                cell.timeLabel.isHidden = false
            } else {
                cell.timeLabel.isHidden = true
            }
            
            let pageKey = self.noteTypeDict["kKMNoteFilterAnnotationPageKey"] as? Bool
            if pageKey == nil || pageKey == false {
                let labelsize = cell.pageLabel.stringValue.boundingRect(with: CGSizeMake(CGFloat(MAXFLOAT),CGRectGetHeight(cell.pageLabel.bounds)), options: [.usesLineFragmentOrigin, .usesFontLeading], attributes: [.font : NSFont.systemFont(ofSize: 12)])
                cell.pageLabelWidthConstraint.constant = labelsize.size.width + 5
                cell.pageLabel.stringValue = pageString
                cell.pageLabel.isHidden = false
            } else {
                cell.pageLabel.isHidden = true
            }
            
            let autherKey = self.noteTypeDict["kKMNoteFilterAnnotationAutherKey"] as? Bool
            if pageKey == nil || pageKey == false {
                cell.autherLabel.stringValue = authorString
                cell.autherLabel.isHidden = false
            } else {
                cell.autherLabel.isHidden = true
            }

            let imageView = KMNoteTypeImageView()
            if note.isKind(of: CPDFStampAnnotation.self) {
                let annotation_stamp = note as! CPDFStampAnnotation
                if (annotation_stamp.stampImage() != nil) {
                    noteType = SKNStampString
                }
            } else if note.isKind(of: CPDFLineAnnotation.self) {
                 let annotation_line = note as! CPDFLineAnnotation
                if annotation_line.startLineStyle == .none && annotation_line.endLineStyle == .none {
                    noteType = SKNLine_NoneString
                } else if annotation_line.startLineStyle == .none && annotation_line.endLineStyle == .openArrow {
                    noteType = SKNLine_OpenArrowString
                } else {
                    noteType = SKNLine_NoneString
                }
            } else if note.isKind(of: CPDFButtonWidgetAnnotation.self) {
                 let buttonWidget = note as! CPDFButtonWidgetAnnotation
                if buttonWidget.controlType() == .radioButtonControl {
                    noteType = KMAnnotationFormRadioButtonKey
                } else if buttonWidget.controlType() == .checkBoxControl {
                    noteType = KMAnnotationFormCheckBoxKey
                } else if buttonWidget.controlType() == .pushButtonControl {
                    noteType = KMAnnotationFormActionButtonKey
                }
            } else if note.isKind(of: CPDFTextWidgetAnnotation.self) {
                noteType = KMAnnotationFormTextFieldKey
            } else if note.isKind(of: CPDFChoiceWidgetAnnotation.self) {
                let choiceWidget = note as! CPDFChoiceWidgetAnnotation
                if choiceWidget.isListChoice {
                    noteType = KMAnnotationFormListMenuKey
                } else {
                    noteType = KMAnnotationFormComboBoxKey
                }
            } else if note.isKind(of: KMTableAnnotation.self) {
                noteType = "Ink_Table"
            } else if note.isKind(of: KMSelfSignAnnotation.self) {
                let selfSignNote = note as! KMSelfSignAnnotation
                if selfSignNote.annotationType == .signFalse {
                    noteType = "KMSelfSignTypeFalseActionButtonKey"
                } else if (selfSignNote.annotationType == .signature) {
                    noteType = "KMSelfSignTypeTureActionButtonKey"
                } else if (selfSignNote.annotationType == .signCircle) {
                    noteType = "KMSelfSignTypeCircleActionButtonKey"
                } else if (selfSignNote.annotationType == .signLine) {
                    noteType = "KMSelfSignTypeLineActionButtonKey"
                } else if (selfSignNote.annotationType == .signDot) {
                    noteType = "KMSelfSignTypeDotActionButtonKey"
                } else if (selfSignNote.annotationType == .signText) {
                    noteType = "KMSelfSignTypeTextActionButtonKey"
                }
            } else if note.isKind(of: CPDFSquareAnnotation.self) {
                noteType = SKNSquareString
            } else if note.isKind(of: CPDFTextAnnotation.self) {
                noteType = SKNNoteString
            } else if note.isKind(of: CPDFFreeTextAnnotation.self) {
                noteType = SKNFreeTextString
            } else if note.isKind(of: CPDFCircleAnnotation.self) {
                noteType = SKNCircleString
            } else if note.isKind(of: CPDFSignatureAnnotation.self) {
                noteType = SKNSignatureString
            } else if note.isKind(of: CPDFInkAnnotation.self) {
                noteType = SKNInkString
            } else if note.isKind(of: CPDFMarkupAnnotation.self) {
                let anno = note as! CPDFMarkupAnnotation
                if anno.markupType() == .highlight {
                    noteType = SKNHighlightString
                } else if anno.markupType() == .underline {
                    noteType = SKNUnderlineString
                } else if anno.markupType() == .strikeOut {
                    noteType = SKNStrikeOutString
                }
            }
            
            cell.typeImageView.image = imageView.noteTypeImage(withType: noteType, color: noteColor ?? .red)
            cell.typeImageView.isHidden = false

            if note.isKind(of: CPDFMarkupAnnotation.self) {
                cell.isFold = true
            }

            cell.noteContentBox.isHidden = true
            cell.noteImageView.isHidden = true
            cell.foldButton.isHidden = true
            cell.annotationContentLabel.isHidden = false

            cell.noteContentLabel.stringValue = noteString

            cell.contentView.isHidden = false
            cell.contentViewHidden(false)
            if note.isKind(of: CPDFMarkupAnnotation.self) {
                let  markup = note as! CPDFMarkupAnnotation
                var contentString = KMBOTAAnnotationTool.fetchText(text: markup.markupContent() ?? "")
                contentString = contentString.replacingOccurrences(of: "\r", with: "")
                contentString = contentString.replacingOccurrences(of: "\n", with: "")
//                cell.noteContentLabel.stringValue = contentString
                if(contentString.isEmpty == false) {
                    cell.foldButton.isHidden = false
                }
                var attributeStr = NSMutableAttributedString(string: contentString)
                if (markup.markupType() == .highlight) {
                    attributeStr.addAttribute(.backgroundColor, value: noteColor as Any, range: NSMakeRange(0, contentString.count))
                } else if (markup.markupType() == .strikeOut) {
                    attributeStr.addAttribute(.strikethroughStyle, value: NSUnderlineStyle.single.rawValue, range: NSMakeRange(0, contentString.count))
                    attributeStr.addAttribute(.strikethroughColor, value: noteColor as Any, range: NSMakeRange(0, contentString.count))
                } else if (markup.markupType() == .underline) {
                    attributeStr.addAttribute(.underlineStyle, value: NSUnderlineStyle.single.rawValue, range: NSMakeRange(0, contentString.count))
                    attributeStr.addAttribute(.underlineColor, value: noteColor as Any, range: NSMakeRange(0, contentString.count))
                }
                cell.annotationContentLabel.attributedStringValue = attributeStr

                if (model.foldType == .unfold) {
                    cell.isFold = false
                } else if (model.foldType == .fold) {
                    cell.isFold = true
                } else {
                    if self.allFoldNotes.isEmpty == false && self.allFoldNotes.contains(note) {
                        cell.isFold = false
                    } else {
                        cell.isFold = true
                    }
                }
                // noteString.isEmpty == false &&
                if (contentString.isEmpty == false) {
                    cell.contentViewHidden(false)
                } else {
                    cell.contentViewHidden(true)
                }
            } else if note.isKind(of: CPDFLineAnnotation.self) || noteType == SKNSquareString || noteType == SKNCircleString || noteType == SKNInkString {
                cell.annotationContentLabel.stringValue = noteString
                if (noteString.isEmpty == false) {
                    cell.contentViewHidden(false)
                } else {
                    cell.contentViewHidden(true)
                }
            } else if note.isKind(of: CPDFStampAnnotation.self) {
                if note.isKind(of: KMSelfSignAnnotation.self) {
                     let newAnnotation = note as! KMSelfSignAnnotation
                    let type = newAnnotation.annotationType
                    var returnString = ""
                    if (type == .signFalse) {
                       returnString = KMLocalizedString("X", nil)
                    } else if (type == .signature) {
                       returnString = KMLocalizedString("Check mark", nil)
                    } else if (type == .signCircle) {
                       returnString = KMLocalizedString("Circle", nil)
                    } else if (type == .signLine) {
                       returnString = KMLocalizedString("Line", nil)
                    } else if (type == .signDot) {
                       returnString = KMLocalizedString("Dot", nil)
                    } else if (type == .signText) {
                       returnString = KMLocalizedString("Text", nil)
                    }
                    cell.annotationContentLabel.stringValue = returnString
                } else {
                    cell.annotationContentLabel.isHidden = true

                    cell.noteImageView.isHidden = false
                    let anno = note as! CPDFStampAnnotation
                    cell.noteImageView.image = anno.stampImage()
                }
            } else if note.isKind(of: CPDFTextAnnotation.self) {
                cell.foldButton.isHidden = false
                if noteString.isEmpty {
                    cell.annotationContentLabel.stringValue = noteTextString
                }else{
                    cell.annotationContentLabel.stringValue = noteString
                    cell.noteContentLabel.stringValue = noteTextString
                }

                if (self.foldType == .unfold) {
                    cell.isFold = false
                } else if (self.foldType == .fold) {
                    cell.isFold = true
                } else {
                    if self.allFoldNotes.isEmpty == false && self.allFoldNotes.contains(note) {
                        cell.isFold = false
                    } else {
                        cell.isFold = true
                    }
                }
                if (noteString.isEmpty == false || noteTextString.isEmpty == false) {
                    cell.contentView.isHidden = false
                } else {
                    cell.contentView.isHidden = true
                    cell.contentViewHidden(true)
                }
                // noteString.isEmpty == false &&
                if (noteTextString.isEmpty == false) {
                    cell.foldButton.isHidden = false
                }else{
                    cell.foldButton.isHidden = true
                }

            } else {
                cell.annotationContentLabel.stringValue = noteString
                cell.imageViewHeightConstraint.constant = cell.contentView.frame.size.height
                if (noteString.isEmpty == false) {
                    cell.contentViewHidden(false)
                } else {
                    cell.contentViewHidden(true)
                }
            }

            cell.autherLayoutConstraint.constant = cell.autherLabel.isHidden ? -(cell.autherLabel.bounds.size.width) + 10.0 : 10.0
            cell.typeImageViewLayoutConstraint.constant = cell.typeImageView.isHidden ? -(cell.typeImageView.bounds.size.width) : 0.0
            cell.contentBoxLayoutConstraint.constant = cell.noteContentBox.isHidden ? -(cell.noteContentBox.bounds.size.height+8.0) : 8.0
            if note.isKind(of: CPDFStampAnnotation.self) && note.isKind(of: KMSelfSignAnnotation.self) == false {

            } else {
                if note.isKind(of: CPDFMarkupAnnotation.self) {
                    if (!cell.isFold) {
                        self.allFoldNotes.append(note)
                    } else {
                        cell.imageViewHeightConstraint.constant = 18.0 + 8
                    }
                } else {
                    cell.imageViewHeightConstraint.constant = 18.0 + 8
                }
            }
            cell.isUnFoldNote = { [unowned self] cellNote, isUnfold in
                model.foldType = isUnfold ? .unfold : .fold
//                let COLUMN_INDENTATION: CGFloat = 16
//                if let _cell = tableColumn?.dataCell as? NSCell {
//                    _cell.objectValue = cell.annotationContentLabel.attributedStringValue
//                    let bound = NSMakeRect(0.0, 0.0, fmax(10.0, NSWidth(outlineView.frame) - COLUMN_INDENTATION - outlineView.indentationPerLevel-40), CGFLOAT_MAX)
//                    let height = _cell.cellSize(forBounds: bound).height
//                    KMPrint(height)
//                }
                if cellNote is CPDFMarkupAnnotation {
//                    let content = cell.annotationContentLabel.attributedStringValue
                    
//                    let bound = content.string.boundingRect(with: NSMakeSize(150, CGFLOAT_MAX), options: [.usesFontLeading, .usesLineFragmentOrigin], attributes: nil)
//                    KMPrint(bound)
                    // 154 34 273
                    // 273 - 188 = 85 noteContentHeightConstraint maltlineLabelLayoutConstraint
                    model.foldH = isUnfold ? 30 : (cell.noteContentHeightConstraint.constant + cell.maltlineLabelLayoutConstraint.constant + 85)
                }
                if (isUnfold) {
                    if (self.allFoldNotes.contains(note)) {
                        self.allFoldNotes.removeObject(note)
                    }

                    if (self.allFoldNotes.count == 0) {
                        self.foldType = .fold
                    } else {
                        self.foldType = .none
                    }
                } else {
                    if self.allFoldNotes.contains(note) == false {
                        self.allFoldNotes.append(note)
                    }

//                    if (rightSideController.allFoldNotes.count == rightSideController.canFoldNotes.count) {
                    self.foldType = .unfold
//                    } else {
//                        self.foldType = KMFoldAllAnnotationType_None;
//                    }
                }
            }
            return cell
        }
        return nil
    }
    
    func outlineView(_ outlineView: NSOutlineView, heightOfRowByItem item: Any) -> CGFloat {
        if outlineView.isEqual(self.noteOutlineView) {
            if item is KMBOTAAnnotationItem {
                let model = item as! KMBOTAAnnotationItem
                if model.foldType == .fold {
                    return model.foldH
                }
                return KMBOTAAnnotationTool.fetchCellHeight(annotation: (item as? KMBOTAAnnotationItem)!.annotation!, maxSize: CGSize(width: 260+40 - 16, height: 1000))
            }
            return 30
        } else if outlineView.isEqual(self.tocOutlineView) {
            if item is CPDFOutline {
                let tempItem = item as! CPDFOutline
                let string: NSString = tempItem.label as NSString
                let paragraphStyle = NSMutableParagraphStyle()
                paragraphStyle.lineHeightMultiple = 1.32
                paragraphStyle.alignment = .left
                let attributes = [NSAttributedString.Key.paragraphStyle: paragraphStyle,
                                  NSAttributedString.Key.font : NSFont.SFProTextRegularFont(14.0)]
                let size = string.boundingRect(with: CGSizeMake(outlineView.frame.size.width - 30, 200), options: NSString.DrawingOptions(rawValue: 3), attributes: attributes)
                return max(40, size.height + 16)
            }
            return 40
        }
        return outlineView.rowHeight
    }
    
    func outlineView(_ outlineView: NSOutlineView, isItemExpandable item: Any) -> Bool {
        if outlineView.isEqual(self.tocOutlineView) {
//            var _item: CPDFOutline?
//            if item == nil && self.listView.document.isLocked == false {
//                _item = self.listView.document.outlineRoot()
//            }
            if let data = item as? String, data == "Bookmarks" {
                return true
            } else if item is CPDFOutline {
                return ((item as! CPDFOutline).numberOfChildren ?? 0) != 0
            } else if item is CPDFBookmark {
                return false
            }
            
            if (self.isSearchOutlineMode) {
//                 return [self subOutLineContainString:self.leftSideController.outlineSearchField.stringValue rootOutline:(PDFOutline *)item];
            } else {
//                return ((_item?.numberOfChildren ?? 0) != 0)
            }
        } else if outlineView.isEqual(to: self.noteOutlineView) {
    //        return [item hasNoteText];
            return false
        }
        return false
    }
    
    func outlineView(_ outlineView: NSOutlineView, rowViewForItem item: Any) -> NSTableRowView? {
        if outlineView.isEqual(self.tocOutlineView) {
            let itemView = KMBotaTableRowView()
            return itemView
        } else if outlineView.isEqual(self.noteOutlineView) {
            let itemView = KMBotaTableRowView()
            return itemView;
        }
        return nil
    }
    
    func outlineViewSelectionDidChange(_ notification: Notification) {
        if self.tocOutlineView.isEqual(to: notification.object) {
//        if ([[notification object] isEqual:leftSideController.tocOutlineView] && (mwcFlags.updatingOutlineSelection == 0)){
//            mwcFlags.updatingOutlineSelection = 1;
            self.goToSelectedOutlineItem(nil)
//            mwcFlags.updatingOutlineSelection = 0;
//            if ([self interactionMode] == SKPresentationMode && [[NSUserDefaults standardUserDefaults] boolForKey:SKAutoHidePresentationContentsKey])
//                [self hideLeftSideWindow];
        }
    }
    
    /*
     #pragma mark NSOutlineView datasource protocol

     - (void)outlineView:(NSOutlineView *)ov setObjectValue:(id)object forTableColumn:(NSTableColumn *)tableColumn byItem:(id)item{
         if ([ov isEqual:rightSideController.noteOutlineView]) {
             PDFAnnotation *note = item;
             if ([note type]) {
                 if ([[tableColumn identifier] isEqualToString:NOTE_COLUMNID]) {
                     if ([(object ?: @"") isEqualToString:([note string] ?: @"")] == NO)
                         [note setString:object];
                 } else if ([[tableColumn identifier] isEqualToString:AUTHOR_COLUMNID]) {
                     if ([(object ?: @"") isEqualToString:([note userName] ?: @"")] == NO)
                         [note setUserName:object];
                 }
             }
         }
     }

     #pragma mark Drag
     - (BOOL)outlineView:(NSOutlineView *)outlineView writeItems:(NSArray *)items toPasteboard:(NSPasteboard *)pasteboard{
         
         if ([outlineView isEqual:leftSideController.tocOutlineView]) {
             if (leftSideController.tocOutlineView.selectedRowIndexes.count > 1) {
                 return NO;
             }
             NSIndexSet *tIndex = [[[NSIndexSet alloc] initWithIndex:leftSideController.tocOutlineView.clickedRow] autorelease];
             [leftSideController.tocOutlineView deselectRow:tIndex.firstIndex];
             self.dragPDFOutline = items.firstObject;

             NSIndexSet *set = [NSIndexSet indexSetWithIndex:0];
             NSData *zNSIndexSetData = [NSKeyedArchiver archivedDataWithRootObject:set];
             [pasteboard declareTypes:[NSArray arrayWithObject:kKMPDFViewOutlineDragDataType] owner:self];
             [pasteboard setData:zNSIndexSetData forType:kKMPDFViewOutlineDragDataType];
             return YES;
         }
         return NO;
     }

     - (NSDragOperation)outlineView:(NSOutlineView *)ov validateDrop:(id <NSDraggingInfo>)info proposedItem:(id)item proposedChildIndex:(NSInteger)anIndex {
         NSDragOperation dragOp = NSDragOperationNone;
         if ([ov isEqual:rightSideController.noteOutlineView]) {
             NSPasteboard *pboard = [info draggingPasteboard];
             if ([pboard canReadObjectForClasses:[NSArray arrayWithObject:[NSColor class]] options:[NSDictionary dictionary]] &&
                 anIndex == NSOutlineViewDropOnItemIndex && [(PDFAnnotation *)item type] != nil)
                 dragOp = NSDragOperationEvery;
         } else if ([ov isEqual:leftSideController.tocOutlineView]) {
             if (anIndex == -1) {
                 dragOp = NSDragOperationNone;
             } else {
                 dragOp =  NSDragOperationMove;
             }
         }
         return dragOp;
     }

     - (BOOL)outlineView:(NSOutlineView *)ov acceptDrop:(id <NSDraggingInfo>)info item:(id)item childIndex:(NSInteger)anIndex {
         if ([ov isEqual:rightSideController.noteOutlineView]) {
             NSPasteboard *pboard = [info draggingPasteboard];
             if ([pboard canReadObjectForClasses:[NSArray arrayWithObject:[NSColor class]] options:[NSDictionary dictionary]]) {
                 BOOL isShift = ([NSEvent standardModifierFlags] & NSEventModifierFlagShift) != 0;
                 BOOL isAlt = ([NSEvent standardModifierFlags] & NSEventModifierFlagOption) != 0;
                 [item setColor:[NSColor colorFromPasteboard:pboard] alternate:isAlt updateDefaults:isShift];
                 return YES;
             }
         } else if ([ov isEqual:leftSideController.tocOutlineView]) {
             if (anIndex < 0) {
                 return NO;
             }
             PDFOutline *outline = item;
             
             //root,drag item to root
             if (!outline.parent) {
                 //fetch root
                 PDFOutline *root  = self.dragPDFOutline;
                 while (root.parent) {
                     root = root.parent;
                 }
                 if ([self.dragPDFOutline.parent isEqual:root]) {
                     if (self.dragPDFOutline.index > (NSUInteger)anIndex) {
                         [self dragPDFOutline:self.dragPDFOutline toIndex:anIndex newParentOutline:root];
                     } else {
                         [self dragPDFOutline:self.dragPDFOutline toIndex:anIndex - 1 newParentOutline:root];
                     }
                 } else {
                     [self dragPDFOutline:self.dragPDFOutline toIndex:anIndex newParentOutline:root];
                 }
             } else {
                 //在同一个层级内移动
                 if ([self.dragPDFOutline.parent isEqual:item]) {
                     if (self.dragPDFOutline.index) {
                         if (self.dragPDFOutline.index > (NSUInteger)anIndex) {
                             [self dragPDFOutline:self.dragPDFOutline toIndex:anIndex newParentOutline:outline];
                         }else{
                             [self dragPDFOutline:self.dragPDFOutline toIndex:anIndex - 1 newParentOutline:outline];
                         }
                     } else {
                         return NO;
                     }
                 } else {
                     PDFOutline *tOutlline = outline;
                     BOOL isContains = NO;
                     while (tOutlline) {
                         if ([tOutlline isEqual:self.dragPDFOutline]) {
                             isContains = YES;
                             break;
                         }
                         tOutlline = tOutlline.parent;
                     }
                     if (!isContains) {
                         [self dragPDFOutline:self.dragPDFOutline toIndex:anIndex newParentOutline:outline];
                     }
                 }
             }
             return YES;
         }
         return NO;
     }

     #pragma mark NSOutlineView delegate protocol

     - (NSCell *)outlineView:(NSOutlineView *)ov dataCellForTableColumn:(NSTableColumn *)tableColumn item:(id)item {
         if ([ov isEqual:rightSideController.noteOutlineView] && tableColumn == nil && [(PDFAnnotation *)item type] == nil) {
             return [[ov tableColumnWithIdentifier:NOTE_COLUMNID] dataCellForRow:[ov rowForItem:item]];
         }
         return [tableColumn dataCellForRow:[ov rowForItem:item]];
     }

     - (void)outlineView:(NSOutlineView *)ov willDisplayOutlineCell:(id)cell forTableColumn:(NSTableColumn *)tableColumn item:(id)item {
         if ([ov isEqual:leftSideController.tocOutlineView] &&
             [ov selectionHighlightStyle] == NSTableViewSelectionHighlightStyleRegular &&
             [ov isRowSelected:[ov rowForItem:item]]) {
             [cell setBackgroundStyle:NSBackgroundStyleLowered];
         }
     }

     - (BOOL)outlineView:(NSOutlineView *)ov shouldEditTableColumn:(NSTableColumn *)tableColumn item:(id)item{
         if ([ov isEqual:rightSideController.noteOutlineView]) {
             if (tableColumn == nil) {
                 if ([pdfView hideNotes] == NO && [[(SKNoteText *)item note] isNote]) {
                     PDFAnnotation *annotation = [(SKNoteText *)item note];
                     [pdfView scrollAnnotationToVisible:annotation];
                     [pdfView setActiveAnnotation:annotation];
                     [self showNote:annotation];
                     SKNoteWindowController *noteController = (SKNoteWindowController *)[self windowControllerForNote:annotation];
                     [[noteController window] makeFirstResponder:[noteController textView]];
                     [[noteController textView] selectAll:nil];
                 }
                 return NO;
             } else if ([[tableColumn identifier] isEqualToString:NOTE_COLUMNID] || [[tableColumn identifier] isEqualToString:AUTHOR_COLUMNID]) {
                 return YES;
             }
         }
         return NO;
     }

     - (void)outlineView:(NSOutlineView *)ov didClickTableColumn:(NSTableColumn *)tableColumn {
         if ([ov isEqual:rightSideController.noteOutlineView]) {
             NSTableColumn *oldTableColumn = [ov highlightedTableColumn];
             NSTableColumn *newTableColumn = ([NSEvent modifierFlags] & NSEventModifierFlagCommand) ? nil : tableColumn;
             NSMutableArray *sortDescriptors = nil;
             BOOL ascending = YES;
             if ([oldTableColumn isEqual:newTableColumn]) {
                 sortDescriptors = [[[rightSideController.noteArrayController sortDescriptors] mutableCopy] autorelease];
                 [sortDescriptors replaceObjectAtIndex:0 withObject:[[sortDescriptors firstObject] reversedSortDescriptor]];
                 ascending = [[sortDescriptors firstObject] ascending];
             } else {
                 NSString *tcID = [newTableColumn identifier];
                 NSSortDescriptor *pageIndexSortDescriptor = [[[NSSortDescriptor alloc] initWithKey:SKNPDFAnnotationPageIndexKey ascending:ascending] autorelease];
                 NSSortDescriptor *boundsSortDescriptor = [[[NSSortDescriptor alloc] initWithKey:SKPDFAnnotationBoundsOrderKey ascending:ascending selector:@selector(compare:)] autorelease];
                 sortDescriptors = [NSMutableArray arrayWithObjects:pageIndexSortDescriptor, boundsSortDescriptor, nil];
                 if ([tcID isEqualToString:TYPE_COLUMNID]) {
                     [sortDescriptors insertObject:[[[NSSortDescriptor alloc] initWithKey:SKNPDFAnnotationTypeKey ascending:YES selector:@selector(noteTypeCompare:)] autorelease] atIndex:0];
                 } else if ([tcID isEqualToString:COLOR_COLUMNID]) {
                     [sortDescriptors insertObject:[[[NSSortDescriptor alloc] initWithKey:SKNPDFAnnotationColorKey ascending:YES selector:@selector(colorCompare:)] autorelease] atIndex:0];
                 } else if ([tcID isEqualToString:NOTE_COLUMNID]) {
                     [sortDescriptors insertObject:[[[NSSortDescriptor alloc] initWithKey:SKNPDFAnnotationStringKey ascending:YES selector:@selector(localizedCaseInsensitiveNumericCompare:)] autorelease] atIndex:0];
                 } else if ([tcID isEqualToString:AUTHOR_COLUMNID]) {
                     [sortDescriptors insertObject:[[[NSSortDescriptor alloc] initWithKey:SKNPDFAnnotationUserNameKey ascending:YES selector:@selector(localizedCaseInsensitiveNumericCompare:)] autorelease] atIndex:0];
                 } else if ([tcID isEqualToString:DATE_COLUMNID]) {
                     [sortDescriptors insertObject:[[[NSSortDescriptor alloc] initWithKey:SKNPDFAnnotationModificationDateKey ascending:YES] autorelease] atIndex:0];
                 }
                 if (oldTableColumn)
                     [ov setIndicatorImage:nil inTableColumn:oldTableColumn];
                 [ov setHighlightedTableColumn:newTableColumn];
             }
             [rightSideController.noteArrayController setSortDescriptors:sortDescriptors];
             if (newTableColumn)
                 [ov setIndicatorImage:[NSImage imageNamed:ascending ? @"NSAscendingSortIndicator" : @"NSDescendingSortIndicator"]
                         inTableColumn:newTableColumn];
             [ov reloadData];
         }
     }

     - (NSString *)outlineView:(NSOutlineView *)ov toolTipForCell:(NSCell *)cell rect:(NSRectPointer)rect tableColumn:(NSTableColumn *)tableColumn item:(id)item mouseLocation:(NSPoint)mouseLocation {
         if ([ov isEqual:rightSideController.noteOutlineView] &&
             (tableColumn == nil || [[tableColumn identifier] isEqualToString:NOTE_COLUMNID])) {
             return [item string];
         }
         return @"";
     }

     - (void)outlineViewItemDidExpand:(NSNotification *)notification{
         if ([[notification object] isEqual:leftSideController.tocOutlineView]) {
             [self updateOutlineSelection];
         }
     }

     - (void)outlineViewItemDidCollapse:(NSNotification *)notification{
         if ([[notification object] isEqual:leftSideController.tocOutlineView]) {
             [self updateOutlineSelection];
         }
     }

     - (void)outlineViewColumnDidResize:(NSNotification *)notification{
         if (mwcFlags.autoResizeNoteRows &&
             [[notification object] isEqual:rightSideController.noteOutlineView] &&
             [[[[notification userInfo] objectForKey:@"NSTableColumn"] identifier] isEqualToString:NOTE_COLUMNID] &&
             [(SKScrollView *)[[notification object] enclosingScrollView] isResizingSubviews] == NO) {
             [rowHeights removeAllFloats];
             [rightSideController.noteOutlineView noteHeightOfRowsWithIndexesChanged:[NSIndexSet indexSetWithIndexesInRange:NSMakeRange(0, [rightSideController.noteOutlineView numberOfRows])]];
         }
     }

     - (void)updateSelectRowHeight{
         CGFloat rowHeight = 0;
         PDFOutline *outline = [leftSideController.tocOutlineView itemAtRow:leftSideController.tocOutlineView.selectedRow];
         if (!outline){
             return;
         }
         NSMutableAttributedString *attributedString = [[[NSMutableAttributedString alloc]init] autorelease];
         NSDictionary *dictAttr1 = @{NSForegroundColorAttributeName:[KMAppearance KMColor_Layout_H0]};
         NSAttributedString *attr1 = [[NSAttributedString alloc]initWithString:outline.label attributes:dictAttr1];
         [attributedString appendAttributedString:attr1];
         
         NSInteger *row = [leftSideController.tocOutlineView selectedRow];
         NSTableCellView *viewS = [leftSideController.tocOutlineView viewAtColumn:0 row:row  makeIfNecessary:YES];
         NSTableColumn *tableColumn = [leftSideController.tocOutlineView tableColumnWithIdentifier:LABEL_COLUMNID];
     //    id cell = [tableColumn dataCell];
         id cell = [tableColumn dataCellForRow:row];
         [cell setObjectValue:attributedString];
         CGFloat w = leftSideController.view.frame.size.width - 86;//[tableColumn width] > 260 ? [tableColumn width] : 260;
         
         NSInteger num = [self getNum:outline];
         CGFloat gap = [leftSideController.tocOutlineView indentationPerLevel];
         rowHeight = [cell cellSizeForBounds:NSMakeRect(0.0, 0.0, w - (num > 0?16:0) - gap*num, CGFLOAT_MAX)].height;
         rowHeight = fmax(rowHeight, [leftSideController.tocOutlineView rowHeight]) + 25;
         [rowHeights setFloat:rowHeight forKey:outline];
         
         if (@available(macOS 10.13, *)) {
             
         } else {
             rowHeight = 40.0;
         }
         CGRect fram = viewS.frame;
         viewS.frame = CGRectMake(fram.origin.x, fram.origin.y, fram.size.width, rowHeight);
         [leftSideController.tocOutlineView reloadData];
     }

     - (NSInteger)getNum:(PDFOutline *)ol{
         NSInteger num = 0;
         PDFOutline *outLine = [ol parent];
         do {
             outLine = [outLine parent];
             if (outLine){
                 num ++;
             }
         } while (outLine);
         return num;
     }

     - (void)sizeOutlineViewToContents:(NSOutlineView*) outlineView;
     {
         NSInteger rowCount = [outlineView numberOfRows];
         for (NSInteger i = 0; i < rowCount; i++){
             CGFloat rowHeight = 0;
             PDFOutline *outline = [leftSideController.tocOutlineView itemAtRow:i];
             if (!outline){
                 continue;
             }
             NSMutableAttributedString *attributedString = [[[NSMutableAttributedString alloc]init] autorelease];
             NSDictionary *dictAttr1 = @{NSForegroundColorAttributeName:[KMAppearance KMColor_Layout_H0]};
             NSAttributedString *attr1 = [[NSAttributedString alloc]initWithString:outline.label attributes:dictAttr1];
             [attributedString appendAttributedString:attr1];
             
     //        NSTableCellView *viewS = [leftSideController.tocOutlineView viewAtColumn:0 row:i  makeIfNecessary:YES];
             NSTableColumn *tableColumn = [leftSideController.tocOutlineView tableColumnWithIdentifier:LABEL_COLUMNID];
             //    id cell = [tableColumn dataCell];
             id cell = [tableColumn dataCellForRow:i];
             [cell setObjectValue:attributedString];
             CGFloat w = leftSideController.view.frame.size.width - 86;//[tableColumn width] > 260 ? [tableColumn width] : 260;
             
             NSInteger num = [self getNum:outline];
             CGFloat gap = [leftSideController.tocOutlineView indentationPerLevel];
             rowHeight = [cell cellSizeForBounds:NSMakeRect(0.0, 0.0, w - (num > 0?16:0) - gap*num, CGFLOAT_MAX)].height;
             rowHeight = fmax(rowHeight, [leftSideController.tocOutlineView rowHeight]) + 25;
             [rowHeights setFloat:rowHeight forKey:outline];
             
             if (@available(macOS 10.13, *)) {
                 
             } else {
                 rowHeight = 40.0;
             }
     //        CGRect fram = viewS.frame;
     //        viewS.frame = CGRectMake(fram.origin.x, fram.origin.y, fram.size.width, rowHeight);
         }
         [leftSideController.tocOutlineView reloadData];
     }

     - (NSArray *)noteItems:(NSArray *)items {
         NSMutableArray *noteItems = [NSMutableArray array];
         
         for (PDFAnnotation *item in items) {
             if ([item type] == nil) {
                 item = [(SKNoteText *)item note];
             }
             if ([noteItems containsObject:item] == NO)
                 [noteItems addObject:item];
         }
         return noteItems;
     }

     - (NSArray *)outlineView:(NSOutlineView *)ov typeSelectHelperSelectionStrings:(SKTypeSelectHelper *)typeSelectHelper {
         if ([ov isEqual:rightSideController.noteOutlineView]) {
             NSInteger i, count = [rightSideController.noteOutlineView numberOfRows];
             NSMutableArray *texts = [NSMutableArray arrayWithCapacity:count];
             for (i = 0; i < count; i++) {
                 id item = [rightSideController.noteOutlineView itemAtRow:i];
                 NSString *string = [item string];
                 [texts addObject:string ?: @""];
             }
             return texts;
         } else if ([ov isEqual:leftSideController.tocOutlineView]) {
             NSInteger i, count = [leftSideController.tocOutlineView numberOfRows];
             NSMutableArray *array = [NSMutableArray arrayWithCapacity:count];
             for (i = 0; i < count; i++)
                 [array addObject:[[(PDFOutline *)[leftSideController.tocOutlineView itemAtRow:i] label] lossyStringUsingEncoding:NSASCIIStringEncoding]];
             return array;
         }
         return nil;
     }

     - (void)outlineView:(NSOutlineView *)ov typeSelectHelper:(SKTypeSelectHelper *)typeSelectHelper didFailToFindMatchForSearchString:(NSString *)searchString {
         if ([ov isEqual:rightSideController.noteOutlineView]) {
             [statusBar setRightStringValue:[NSString stringWithFormat:NSLocalizedString(@"No match: \"%@\"", @"Status message"), searchString]];
         } else if ([ov isEqual:leftSideController.tocOutlineView]) {
             [statusBar setLeftStringValue:[NSString stringWithFormat:NSLocalizedString(@"No match: \"%@\"", @"Status message"), searchString]];
         }
     }

     - (void)outlineView:(NSOutlineView *)ov typeSelectHelper:(SKTypeSelectHelper *)typeSelectHelper updateSearchString:(NSString *)searchString {
         if ([typeSelectHelper isEqual:[leftSideController.thumbnailTableView typeSelectHelper]] || [typeSelectHelper isEqual:[pdfView typeSelectHelper]]) {
             if (searchString)
                 [statusBar setLeftStringValue:[NSString stringWithFormat:NSLocalizedString(@"Go to page: %@", @"Status message"), searchString]];
             else
                 [self updateLeftStatus];
         } else if ([typeSelectHelper isEqual:[rightSideController.noteOutlineView typeSelectHelper]]) {
             if (searchString)
                 [statusBar setRightStringValue:[NSString stringWithFormat:NSLocalizedString(@"Finding note: \"%@\"", @"Status message"), searchString]];
             else
                 [self updateRightStatus];
         } else if ([typeSelectHelper isEqual:[leftSideController.tocOutlineView typeSelectHelper]]) {
             if (searchString)
                 [statusBar setLeftStringValue:[NSString stringWithFormat:NSLocalizedString(@"Finding: \"%@\"", @"Status message"), searchString]];
             else
                 [self updateLeftStatus];
         }
     }

     */
}

// MARK: - KMCustomOutlineViewDelegate, KMCustomOutlineViewDataSource

extension KMLeftSideViewController: KMCustomOutlineViewDelegate, KMCustomOutlineViewDataSource {
    func outlineView(_ anOutlineView: NSOutlineView, canDeleteItems items: [Any]) -> Bool {
        if anOutlineView.isEqual(to: self.noteOutlineView) {
            return self.listView.hideNotes == false && items.count > 0
        } else if anOutlineView.isEqual(to: self.tocOutlineView) {
            return items.count > 0
        }
        return false
    }
    
    func outlineView(_ anOutlineView: NSOutlineView, deleteItems items: [Any]) {
        if anOutlineView.isEqual(to: self.noteOutlineView) {
            if (items.isEmpty) {
                return
            }
//            for (PDFAnnotation *item in [self noteItems:items])
//                [pdfView removeAnnotation:item];
//            [[[self document] undoManager] setActionName:NSLocalizedString(@"Remove Note", @"Undo action name")];
        } else if anOutlineView.isEqual(to: self.tocOutlineView) {
//            [self outlineContextMenuItemClicked_RemoveEntry:nil];
        }
    }

    func outlineView(_ anOutlineView: NSOutlineView, canCopyItems items: [Any]) -> Bool {
        if anOutlineView.isEqual(to: self.noteOutlineView) {
            if (items.count == 1) {
//                PDFAnnotation *annotation = [[self noteItems:items] lastObject];
//                if ([annotation isKindOfClass:[PDFAnnotationStamp class]] ||
//                    [annotation isKindOfClass:[PDFAnnotationLink class]]) {
//                    return NO;
//                }
            }
            return items.count > 0
        }
        return false
    }
    
    func outlineView(_ anOutlineView: NSOutlineView, copyItems items: [Any]) {
        if anOutlineView.isEqual(to: self.noteOutlineView) && items.isEmpty == false {
            let pboard = NSPasteboard.general
            var copiedItems: [Any] = []
            var attrString = NSMutableAttributedString()
            var isAttributed = false
            var item: AnyObject?
            
//            for (item in [self noteItems:items]) {
//                if ([item isMovable])
//                    [copiedItems addObject:item];
//            }
//            for (item in items) {
//                if ([attrString length])
//                    [attrString replaceCharactersInRange:NSMakeRange([attrString length], 0) withString:@"\n\n"];
//                if ([(PDFAnnotation *)item type] == nil && [[(SKNoteText *)item note] isNote]) {
//                    [attrString appendAttributedString:[(SKNoteText *)item text]];
//                    isAttributed = YES;
//                } else {
//                    [attrString replaceCharactersInRange:NSMakeRange([attrString length], 0) withString:[item string] ?: @""];
//                }
//            }
//
//            [pboard clearContents];
//            if (isAttributed)
//                [pboard writeObjects:[NSArray arrayWithObjects:attrString, nil]];
//            else
//                [pboard writeObjects:[NSArray arrayWithObjects:[attrString string], nil]];
//            if ([copiedItems count] > 0)
//                [pboard writeObjects:copiedItems];
        }
    }

}

// MARK: - KMTocOutlineViewDelegate

extension KMLeftSideViewController: KMTocOutlineViewDelegate {
//    func outlineView(_ anOutlineView: NSOutlineView, highlightLevelForRow row: Int) -> Int {
//        if ([ov isEqual:leftSideController.tocOutlineView]) {
//            NSInteger numRows = [ov numberOfRows];
//            NSUInteger firstPage = [[[ov itemAtRow:row] page] pageIndex];
//            NSUInteger lastPage = row + 1 < numRows ? [[[ov itemAtRow:row + 1] page] pageIndex] : [[self pdfDocument] pageCount];
//            NSRange range = NSMakeRange(firstPage, MAX(1LU, lastPage - firstPage));
//            NSUInteger i, iMax = [lastViewedPages count];
//            for (i = 0; i < iMax; i++) {
//                if (NSLocationInRange((NSUInteger)[lastViewedPages pointerAtIndex:i], range))
//                    return i;
//            }
//        }
//        return NSNotFound;
//    }
    
    func outlineView(_ anOutlineView: NSOutlineView, imageContextForItem item: Any?) -> AnyObject? {
        if anOutlineView.isEqual(to: self.tocOutlineView) {
            if item == nil {
                return true as AnyObject
            }
            if item is CPDFOutline {
                return (item as! CPDFOutline).destination
            }
        }
        return nil
    }
}

extension KMLeftSideViewController: KMNoteOutlineViewDelegate {
    func outlineView(_ anOutlineView: NSOutlineView, canResizeRowByItem item: AnyObject?) -> Bool? {
        if anOutlineView.isEqual(to: self.noteOutlineView) {
            return true
        }
        return false
    }
    
    func outlineView(_ anOutlineView: NSOutlineView, setHeight newHeight: CGFloat, ofRowByItem item: AnyObject?) {
//        [rowHeights setFloat:newHeight forKey:item];
    }
    
    func outlineView(_ anOutlineView: NSOutlineView, didChangeHiddenOfTableColumn aTableColumn: NSTableColumn) {
//            if (mwcFlags.autoResizeNoteRows &&
//                [ov isEqual:rightSideController.noteOutlineView] &&
//                [[tableColumn identifier] isEqualToString:NOTE_COLUMNID]) {
//                [rowHeights removeAllFloats];
//                [rightSideController.noteOutlineView noteHeightOfRowsWithIndexesChanged:[NSIndexSet indexSetWithIndexesInRange:NSMakeRange(0, [rightSideController.noteOutlineView numberOfRows])]];
//            }
    }
    
    func outlineViewCommandKeyPressedDuringNavigation(_ anOutlineView: NSOutlineView) {
//            PDFAnnotation *annotation = [[self selectedNotes] lastObject];
//            if (annotation) {
//                [pdfView scrollAnnotationToVisible:annotation];
//                [pdfView setActiveAnnotation:annotation];
//            }
    }
    
    
}

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 ([obj.object isEqual:self.leftSideController.snapshotSearchField]) {
//            NSString *searchString = [self.leftSideController.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];
//            if (snapshots.count > 0) {
//                [self.leftSideEmptyVC.outlineSearchView removeFromSuperview];
//            } else {
//                NSView *view = rightSideController.snapshotTableView.enclosingScrollView;
//                CGSize 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 = NSViewMinXMargin | NSViewMaxXMargin| NSViewMaxYMargin | NSViewMinYMargin;
//                [rightSideController.snapshotTableView.enclosingScrollView.documentView addSubview:self.leftSideEmptyVC.outlineSearchView];
//            }
//        }
    }
}

// MARK: - NSMenuDelegate

extension KMLeftSideViewController: NSMenuDelegate {
    func menuNeedsUpdate(_ menu: NSMenu) {
        if menu.isEqual(to: self.tocOutlineView.menu) {
            menu.removeAllItems()
            var item = menu.addItem(withTitle: NSLocalizedString("Add Item", comment: ""), action: #selector(outlineContextMenuItemClicked_AddEntry), target: self, tag: 1)
            item = menu.addItem(withTitle: NSLocalizedString("Add Sub-Item", comment: ""), action: #selector(outlineContextMenuItemClicked_AddChildEntry), target: self, tag: 2)
            item = menu.addItem(withTitle: NSLocalizedString("Add To A Higher Level", comment: ""), action: #selector(outlineContextMenuItemClicked_AddAuntEntry), target: self, tag: 3)
            menu.addItem(.separator())
            item = menu.addItem(withTitle: NSLocalizedString("Delete", comment: ""), action: #selector(outlineContextMenuItemClicked_RemoveEntry), target: self, tag: 4)
            menu.addItem(.separator())
            item = menu.addItem(withTitle: NSLocalizedString("Edit", comment: ""), action: #selector(outlineContextMenuItemClicked_Edit), target: self, tag: 5)
            item = menu.addItem(withTitle: NSLocalizedString("Change Destination", comment: ""), action: #selector(outlineContextMenuItemClicked_SetDestination), target: self, tag: 6)
            item = menu.addItem(withTitle: NSLocalizedString("Rename", comment: ""), action: #selector(outlineContextMenuItemClicked_Rename), target: self, tag: 7)
            menu.addItem(.separator())
            item = menu.addItem(withTitle: NSLocalizedString("Promote", comment: ""), action: #selector(outlineContextMenuItemClicked_Promote), target: self, tag: 8)
            item = menu.addItem(withTitle: NSLocalizedString("Demote", comment: ""), action: #selector(outlineContextMenuItemClicked_Demote), target: self, tag: 9)
            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._copysPages.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(rotatePage), 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)
                
                item = menu.addItem(title: KMLocalizedString("Share", "Menu item title"), action: nil, target: self)

//                NSString * tName = [self fileNameWithSelectedPages:leftSideController.thumbnailTableView.selectedRowIndexes];
//                if (tName.length > 50) {
//                   tName = [tName substringWithRange:NSMakeRange(0, 50)];
//                }
                var tName = self.listView.document.documentURL.lastPathComponent
                item?.submenu = NSSharingServicePicker.menu(forSharingItems: [self.listView.document.documentURL], subjectContext: tName, withTarget: self, selector: #selector(sharePage), serviceDelegate: nil)
            }
        } else if menu.isEqual(to: self.findTableView.menu) {
            var rowIndexes = self.findTableView.selectedRowIndexes
            var row = self.findTableView.clickedRow
            if (row != -1) {
                if rowIndexes.contains(row) == false {
                    rowIndexes = IndexSet(integer: row)
                }
//                NSArray *selections = [[leftSideController.findArrayController arrangedObjects] objectsAtIndexes:rowIndexes];
//                if ([pdfView hideNotes] == NO && [[self pdfDocument] allowsNotes]) {
                item = menu.addItem(withTitle: KMLocalizedString("Add New Circle", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: 0)
////                    [item setRepresentedObject:selections];
                item = menu.addItem(withTitle: KMLocalizedString("Add New Rectangle", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: 1)
////                    [item setRepresentedObject:selections];
                item = menu.addItem(withTitle: KMLocalizedString("Add New Highlight", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: 2)
////                    [item setRepresentedObject:selections];
                item = menu.addItem(withTitle: KMLocalizedString("Add New Underline", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: 3)
////                    [item setRepresentedObject:selections];
                item = menu.addItem(withTitle: KMLocalizedString("Add New Strikethrough", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: 4)
//                    [item setRepresentedObject:selections];
//                }
            }
        } else if menu.isEqual(to: self.groupedFindTableView.menu) {
            var rowIndexes = self.groupedFindTableView.selectedRowIndexes
            var 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"];

                item = menu.addItem(title: KMLocalizedString("Select", "Menu item title"), action: #selector(selectSelections), target: self)
//                [item setRepresentedObject:selections];
                menu.addItem(.separator())
//                if ([pdfView hideNotes] == NO && [[self pdfDocument] allowsNotes]) {
                item = menu.addItem(withTitle: KMLocalizedString("Add New Circle", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: 0)
//                    [item setRepresentedObject:selections];
                item = menu.addItem(withTitle: KMLocalizedString("Add New Rectangle", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: 1)
//                    [item setRepresentedObject:selections];
                item = menu.addItem(withTitle: KMLocalizedString("Add New Highlight", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: 2)
//                    [item setRepresentedObject:selections];
                item = menu.addItem(withTitle: KMLocalizedString("Add New Underline", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: 3)
//                    [item setRepresentedObject:selections];
                item = menu.addItem(withTitle: KMLocalizedString("Add New Strikethrough", "Menu item title"), action: #selector(addAnnotationsForSelections), target: self, tag: 4)
//                    [item setRepresentedObject:selections];
//                }
            }
        }
//        else if ([menu isEqual:[rightSideController.snapshotTableView menu]]) {
//            NSInteger row = [rightSideController.snapshotTableView clickedRow];
//            if (row != -1) {
//                SKSnapshotWindowController *controller = [[rightSideController.snapshotArrayController arrangedObjects] objectAtIndex:row];
//
//                if ([[controller window] isVisible]) {
//                    item = [menu addItemWithTitle:NSLocalizedString(@"Hide", @"Menu item title") action:@selector(hideSnapshot:) target:self];
//                    [item setRepresentedObject:controller];
//                } else {
//                    item = [menu addItemWithTitle:NSLocalizedString(@"Show", @"Menu item title") action:@selector(showSnapshot:) target:self];
//                    [item setRepresentedObject:controller];
//                }
//                [menu addItem:[NSMenuItem separatorItem]];
//
//                item = [menu addItemWithTitle:NSLocalizedString(@"Export", @"Menu item title") action:nil target:self];
//                NSMenu *subMenu = [NSMenu menu];
//
//                NSMenuItem *t = [subMenu addItemWithTitle:NSLocalizedString(@"PNG", @"Menu item title") action:@selector(menuItemClick_ExportPNG:) target:self];
//                [t setRepresentedObject:controller];
//
//                t = [subMenu addItemWithTitle:NSLocalizedString(@"JPG", @"Menu item title") action:@selector(menuItemClick_ExportJPG:) target:self];
//                [t setRepresentedObject:controller];
//
//                t = [subMenu addItemWithTitle:NSLocalizedString(@"PDF", @"Menu item title") action:@selector(menuItemClick_ExportPDF:) target:self];
//                [t setRepresentedObject:controller];
//                item.submenu = subMenu;
//
//                item = [menu addItemWithTitle:NSLocalizedString(@"Print", @"Menu item title") action:@selector(menuItemClick_Print:) target:self];
//                [item setRepresentedObject:controller];
//                [menu addItem:[NSMenuItem separatorItem]];
//
//                item = [menu addItemWithTitle:NSLocalizedString(@"Copy", @"Menu item title") action:@selector(menuItemClick_Copy:) target:self];
//                [item setRepresentedObject:controller];
//                [menu addItem:[NSMenuItem separatorItem]];
//
//                item = [menu addItemWithTitle:NSLocalizedString(@"Delete", @"Menu item title") action:@selector(deleteSnapshot:) target:self];
//                [item setRepresentedObject:controller];
//                item = [menu addItemWithTitle:NSLocalizedString(@"Delete All Snapshots", @"Menu item title") action:@selector(deleteAllSnapshot:) target:self];
//                [item setRepresentedObject:controller];
//            }
//        }
    else if menu.isEqual(to: self.noteOutlineView.menu) {
            //            NSArray *items;
            var rowIndexes = self.noteOutlineView.selectedRowIndexes
            let row = self.noteOutlineView.clickedRow
            if (row != -1) {
                if rowIndexes.contains(row) == false {
                    rowIndexes = IndexSet(integer: row)
                    //                    items = [rightSideController.noteOutlineView itemsAtRowIndexes:rowIndexes];
                    
                    //                    PDFAnnotation *foldNote = (PDFAnnotation *)notes[row];
                    var isFold = true
                    //                    if ([rightSideController.allFoldNotes containsObject:foldNote]) {
                    //                        isFold = NO;
                    //                    }
                    item = menu.addItem(title: KMLocalizedString("Expand", nil), action: #selector(unfoldNoteAction), target: self)
                    if (isFold) {
                        item?.state = .off
                    } else {
                        item?.state = .on
                    }
                    //                                [item setRepresentedObject:items];
                    item = menu.addItem(title: KMLocalizedString("Collapse", nil), action: #selector(foldNoteAction), target: self)
                    if (isFold) {
                        item?.state = .on
                    } else {
                        item?.state = .off
                    }
                    //                                [item setRepresentedObject:items];
                    
                    //UX改版删除
                    //            if ([self outlineView:rightSideController.noteOutlineView canCopyItems:items]) {
                    //                item = [menu addItemWithTitle:NSLocalizedString(@"Copy", @"Menu item title") action:@selector(copyNotes:) target:self];
                    //                [item setRepresentedObject:items];
                    //            }
                    menu.addItem(.separator())
                    if self.listView.hideNotes == false {
                        //                                if ([pdfView hideNotes] == NO && [items count] == 1) {
                        //                                    PDFAnnotation *annotation = [[self noteItems:items] lastObject];
                        //                                    if ([annotation isEditable]) {
                        //                                        if ([(PDFAnnotation *)[items lastObject] type] == nil) {
                        //                                            if ([[(SKNoteText *)[items lastObject] note] isNote]) {
                        //                                                item = [menu addItemWithTitle:[NSLocalizedString(@"Edit", @"Menu item title") stringByAppendingEllipsis] action:@selector(editNoteTextFromTable:) target:self];
                        //                                                [item setRepresentedObject:annotation];
                        //                                            }
                        //                                        } else if ([[rightSideController.noteOutlineView tableColumnWithIdentifier:NOTE_COLUMNID] isHidden]) {
                        //                                            item = [menu addItemWithTitle:[NSLocalizedString(@"Edit", @"Menu item title") stringByAppendingEllipsis] action:@selector(editThisAnnotation:) target:pdfView];
                        //                                            [item setRepresentedObject:annotation];
                        //                                        } else {
                        //                                            item = [menu addItemWithTitle:NSLocalizedString(@"Edit", @"Menu item title") action:@selector(editNoteFromTable:) target:self];
                        //                                            [item setRepresentedObject:annotation];
                        //                                            item = [menu addItemWithTitle:[NSLocalizedString(@"Edit", @"Menu item title") stringByAppendingEllipsis] action:@selector(editThisAnnotation:) target:pdfView];
                        //                                            [item setRepresentedObject:annotation];
                        //                                            [item setKeyEquivalentModifierMask:NSEventModifierFlagOption];
                        //                                            [item setAlternate:YES];
                        //                                        }
                        //                                    }
                        //                if ([pdfView hideNotes] == NO && [[self pdfDocument] allowsNotes]) {
                        //                    if ([pdfView activeAnnotation] == annotation) {
                        //                        item = [menu addItemWithTitle:NSLocalizedString(@"Deselect", @"Menu item title") action:@selector(deselectNote:) target:self];
                        //                        [item setRepresentedObject:annotation];
                        //                    } else {
                        //                        item = [menu addItemWithTitle:NSLocalizedString(@"Select", @"Menu item title") action:@selector(selectNote:) target:self];
                        //                        [item setRepresentedObject:annotation];
                        //                    }
                        //                    item = [menu addItemWithTitle:NSLocalizedString(@"Show", @"Menu item title") action:@selector(revealNote:) target:self];
                        //                    [item setRepresentedObject:annotation];
                        //                }
                        //                                }
                        //            if ([menu numberOfItems] > 0)
                        //                [menu addItem:[NSMenuItem separatorItem]];
                        //            item = [menu addItemWithTitle:[items count] == 1 ? NSLocalizedString(@"Auto Size Row", @"Menu item title") : NSLocalizedString(@"Auto Size Rows", @"Menu item title") action:@selector(autoSizeNoteRows:) target:self];
                        //            [item setRepresentedObject:items];
                        //            item = [menu addItemWithTitle:[items count] == 1 ? NSLocalizedString(@"Undo Auto Size Row", @"Menu item title") : NSLocalizedString(@"Undo Auto Size Rows", @"Menu item title") action:@selector(resetHeightOfNoteRows:) target:self];
                        //            [item setRepresentedObject:items];
                        //            [item setKeyEquivalentModifierMask:NSAlternateKeyMask];
                        //            [item setAlternate:YES];
                        //            [menu addItemWithTitle:NSLocalizedString(@"Auto Size All", @"Menu item title") action:@selector(autoSizeNoteRows:) target:self];
                        //            item = [menu addItemWithTitle:NSLocalizedString(@"Undo Auto Size All", @"Menu item title") action:@selector(resetHeightOfNoteRows:) target:self];
                        //            [item setKeyEquivalentModifierMask:NSAlternateKeyMask];
                        //            [item setAlternate:YES];
                        //            [menu addItemWithTitle:NSLocalizedString(@"Automatically Resize", @"Menu item title") action:@selector(toggleAutoResizeNoteRows:) target:self];
                        
                        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:rightSideController.noteOutlineView canDeleteItems:items]) {
                            item = menu.addItem(title: KMLocalizedString("Delete", "Menu item title"), action: #selector(deleteNotes), target: self)
                            //                                        [item setRepresentedObject:items];
                            //                                    }
                            item = menu.addItem(title: NSLocalizedString("Remove All Annotations", tableName: "MainMenu", comment: "Menu item title"), action: #selector(removeAllAnnotations), target: self)
                        }
                    }
                }
            }
        }
//            else {
//                item = [menu addItemWithTitle:NSLocalizedStringFromTable(@"Export Annotations…", @"MainMenu", @"Menu item title") action:@selector(exportAnnotationNotes:) target:self];
//
//                NSMenu *subMenu = [NSMenu menu];
//                item.submenu = subMenu;
//                item = [subMenu addItemWithTitle:NSLocalizedStringFromTable(@"PDF", @"MainMenu", @"Menu item title") action:@selector(exportAnnotationNotes:) target:self];
//                item.tag = 0;
//                item = [subMenu addItemWithTitle:NSLocalizedStringFromTable(@"PDF Bundle", @"MainMenu", @"Menu item title") action:@selector(exportAnnotationNotes:) target:self];
//                item.tag = 1;
//                item = [subMenu addItemWithTitle:NSLocalizedStringFromTable(@"PDF Reader Pro Edition Notes", @"MainMenu", @"Menu item title") action:@selector(exportAnnotationNotes:) target:self];
//                item.tag = 2;
//                item = [subMenu addItemWithTitle:NSLocalizedStringFromTable(@"Notes as Text", @"MainMenu", @"Menu item title") action:@selector(exportAnnotationNotes:) target:self];
//                item.tag = 3;
//                item = [subMenu addItemWithTitle:NSLocalizedStringFromTable(@"Notes as RTF", @"MainMenu", @"Menu item title") action:@selector(exportAnnotationNotes:) target:self];
//                item.tag = 4;
//                item = [subMenu addItemWithTitle:NSLocalizedStringFromTable(@"Notes as RTFD", @"MainMenu", @"Menu item title") action:@selector(exportAnnotationNotes:) target:self];
//                item.tag = 5;
//                item = [subMenu addItemWithTitle:NSLocalizedStringFromTable(@"Notes as FDF", @"MainMenu", @"Menu item title") action:@selector(exportAnnotationNotes:) target:self];
//                item.tag = 6;
//
//                item = [menu addItemWithTitle:NSLocalizedStringFromTable(@"Remove All Annotations", @"MainMenu", @"Menu item title") action:@selector(removeAllAnnotations:) target:self];
//            }
//        }
    }
}

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.isRedactEdit) {
//            if (action == @selector(redactAction:))
//                return YES;
//            return NO;
//        }
//
//        if (self.isShowPageEdit) {
//            if (action == @selector(pageEdit:))
//                return YES;
//            return NO;
//        }
        
//        if (self.isShowTextEdit) {
//            if (action == @selector(textEditAction:))
//                return YES;
//            return NO;
//        }
//        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 setState:mwcFlags.caseInsensitiveSearch ? NSOnState : NSOffState];
//            return YES;
//        } else if (action == @selector(toggleWholeWordSearch:)) {
//            [menuItem setState:mwcFlags.wholeWordSearch ? NSOnState : NSOffState];
//            return YES;
//        } 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 ([self.pdfView.document isLocked]) {
//                return NO;
//            }
//            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 NO;
//                }
//            }
//            if (self.leftSideController.tocOutlineView.selectedRowIndexes.count > 1) {
//                if (menuItem.tag == KOutlineViewMenuItemTag_Remove) {
//                    return YES;
//                }
//                return NO;
//            } else if (self.leftSideController.tocOutlineView.selectedRowIndexes.count > 0) {
//                if (action == @selector(outlineContextMenuItemClicked_AddChildEntry:) ||
//                    action == @selector(outlineContextMenuItemClicked_SetDestination:)) {
//                    return YES;
//                }
//            }
//            if (self.leftSideController.tocOutlineView.clickedRow == -1) {
//                if (action == @selector(outlineContextMenuItemClicked_AddEntry:)) {
//                    return YES;
//                } else {
//                    return NO;
//                }
//            } else {
//                PDFOutline *clickedOutline = [self.leftSideController.tocOutlineView itemAtRow:self.leftSideController.tocOutlineView.clickedRow];
//                if (clickedOutline.index > 0) {
//                    if (action == @selector(outlineContextMenuItemClicked_Demote:)) {
//                        return YES;
//                    }
//                } else {
//                    if (action == @selector(outlineContextMenuItemClicked_Demote:)) {
//                        return NO;
//                    }
//                }
//                PDFOutline *parentOutLine = clickedOutline.parent;
//                PDFOutline *grandparentOutLine = parentOutLine.parent;
//                //if clicked PDFOutline's parent exist
//                if (grandparentOutLine) {
//                    //and title is equla "add_AuntOutlineKey"
//                    if (action == @selector(outlineContextMenuItemClicked_AddAuntEntry:)) {
//                        return YES;
//                    } else if (action == @selector(outlineContextMenuItemClicked_Promote:)){
//                        return YES;
//                    }
//                } else {
//                    if (action == @selector(outlineContextMenuItemClicked_AddAuntEntry:)) {
//                        return NO;
//                    }else if (action == @selector(outlineContextMenuItemClicked_Promote:)){
//                        return NO;
//                    }
//                }
//            }
//            return YES;
//        } 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:)) {
//            NSInteger row = [rightSideController.noteOutlineView clickedRow];
//            NSArray *noteArr = [rightSideController.noteArrayController arrangedObjects];
//            PDFAnnotation *foldNote = (PDFAnnotation *)noteArr[row];
//            if (@available(macOS 10.13, *)) {
//                if ([foldNote isKindOfClass:[PDFAnnotationMarkup class]] ||
//                    [foldNote isKindOfClass:[SKNPDFAnnotationNote class]]) {
//                    return YES;
//                } else {
//                    return NO;
//                }
//            } else {
//                return NO;
//            }
//        } 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: - Menu Item Actions

extension KMLeftSideViewController {
    @objc func cutPage(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-cutPage...")
//        if (![IAPProductsManager defaultManager].isAvailableAllFunction) {
//            [[KMPurchaseCompareWindowController sharedInstance] showWindow:nil];
//            return;
//        }
//        [self tableView:leftSideController.thumbnailTableView cutRowsWithIndexes:leftSideController.thumbnailTableView.selectedRowIndexes];
    }
    
    @objc func copyPage(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-copyPage...")
//        [self tableView:leftSideController.thumbnailTableView copyRowsWithIndexes:leftSideController.thumbnailTableView.selectedRowIndexes];
    }
    
    @objc func pastePage(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-pastePage...")
//        [self tableView:leftSideController.thumbnailTableView pasteFromPasteboard:nil];
    }
    
    @objc func deletePage(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-deletePage...")
//        if (![IAPProductsManager defaultManager].isAvailableAllFunction) {
//            [[KMPurchaseCompareWindowController sharedInstance] showWindow:nil];
//            return;
//        }
//        [self tableView:leftSideController.thumbnailTableView deleteRowsWithIndexes:leftSideController.thumbnailTableView.selectedRowIndexes];
    }
    
    @objc func rotatePage(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-rotatePage...")
//        if (![IAPProductsManager defaultManager].isAvailableAllFunction) {
//            [[KMPurchaseCompareWindowController sharedInstance] showWindow:nil];
//            return;
//        }
//
//        [self tableView:leftSideController.thumbnailTableView rotateRowsWithIndexes:leftSideController.thumbnailTableView.selectedRowIndexes];
    }
    
    @objc func quickInsert(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-quickInsert...")
    }
    
    @objc func insert(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-insert...")
    }
    
    @objc func insertPDF(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-insertPDF...")
    }
    
    @objc func extractPage(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-extractPage...")
    }
    
    @objc func pageEdit(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-pageEdit...")
    }
    
    @objc func displayPageSize(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-displayPageSize...")
    }
    
    @objc func sharePage(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-sharePage...")
    }
    
    
    @objc func unfoldNoteAction(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-unfoldNoteAction...")
    }
    
    @objc func foldNoteAction(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-foldNoteAction...")
    }
    
    @objc func deleteNotes(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-deleteNotes...")
    }
    
    @objc func removeAllAnnotations(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-removeAllAnnotations...")
    }
    
    @objc func addAnnotationsForSelections(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-addAnnotationsForSelections...")
    }
    
    @objc func selectSelections(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-selectSelections...")
    }
    
    @objc func toggleWholeWordSearch(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-toggleWholeWordSearch...")
    }
    
    @objc func toggleCaseInsensitiveSearch(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-toggleCaseInsensitiveSearch...")
    }
    
    @objc func toggleCaseInsensitiveNoteSearch(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-toggleCaseInsensitiveNoteSearch...")
    }
    
    @objc func searchNotes(_ sender: AnyObject?) {
        if self.findState == .note {
            //        if (mwcFlags.findState == SKFindStateNote)
//            [self updateNoteFilterPredicate];
        }
//        else
//            [self updateSnapshotFilterPredicate];
//        if ([[sender stringValue] length]) {
//            NSPasteboard *findPboard = [NSPasteboard pasteboardWithName:NSPasteboardNameFind];
//            [findPboard clearContents];
//            [findPboard writeObjects:[NSArray arrayWithObjects:[sender stringValue], nil]];
//        }
    }
    
    @objc func toggleSelectedSnapshots(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-toggleSelectedSnapshots...")
    }
    
    @objc func toggleOutlineCaseInsensitiveSearch(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-toggleOutlineCaseInsensitiveSearch...")
    }
    
    @objc func outlineContextMenuItemClicked_AddEntry(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-outlineContextMenuItemClicked_AddEntry...")
    }
    
    @objc func outlineContextMenuItemClicked_AddChildEntry(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-outlineContextMenuItemClicked_AddChildEntry...")
    }
    
    @objc func outlineContextMenuItemClicked_AddAuntEntry(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-outlineContextMenuItemClicked_AddAuntEntry...")
    }
    
    @objc func outlineContextMenuItemClicked_RemoveEntry(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-outlineContextMenuItemClicked_RemoveEntry...")
    }
    
    @objc func outlineContextMenuItemClicked_Edit(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-outlineContextMenuItemClicked_Edit...")
    }
    
    @objc func outlineContextMenuItemClicked_SetDestination(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-outlineContextMenuItemClicked_SetDestination...")
    }
    
    @objc func outlineContextMenuItemClicked_Rename(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-outlineContextMenuItemClicked_Rename...")
    }
    
    @objc func outlineContextMenuItemClicked_Promote(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-outlineContextMenuItemClicked_Promote...")
    }
    
    @objc func outlineContextMenuItemClicked_Demote(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-outlineContextMenuItemClicked_Demote...")
    }
    
    private func _tableView(_ tv: NSTableView, cutRowsWithIndexes rowIndexes: IndexSet) {
//        if tv.isEqual(to: self.thumbnailTableView) {
//            self._copysPages.removeAll()
//            for i in rowIndexes {
//                if (idx != NSNotFound) {
//                    let page = self.listView.document.page(at: idx)
//                    self._copysPages.append(page)
//                }
//            }
//            [self tableView:tv deleteRowsWithIndexes:rowIndexes];
//        }
    }
    
    // MARK: - Snapshot
    @objc func menuItemClick_ExportPNG(_ sender: AnyObject?) {
        guard let snapshot = (sender as? NSMenuItem)?.representedObject as? KMSnapshotWindowController else {
            return
        }

        let image = snapshot.thumbnailWithSize(0)
        NSPanel.savePanel_data_success(self.view.window!, imageData: image?.pngData(), allowedTypes: ["png"]) { url in
            NSWorkspace.shared.selectFile(url.path, inFileViewerRootedAtPath: "")
        }
    }
    
    @objc func menuItemClick_ExportJPG(_ sender: AnyObject?) {
        guard let snapshot = (sender as? NSMenuItem)?.representedObject as? KMSnapshotWindowController else {
            return
        }

        let image = snapshot.thumbnailWithSize(0)
        NSPanel.savePanel_data_success(self.view.window!, imageData: image?.jpgData(), allowedTypes: ["jpg"]) { url in
            NSWorkspace.shared.selectFile(url.path, inFileViewerRootedAtPath: "")
        }
    }
    
    @objc func menuItemClick_ExportPDF(_ sender: AnyObject?) {
        guard let snapshot = (sender as? NSMenuItem)?.representedObject as? KMSnapshotWindowController else {
            return
        }

        if let image = snapshot.thumbnailWithSize(0) {
            let document = CPDFDocument()
            _ = document?.km_insert(image: image, at: 0)
            NSPanel.savePanel_pdf_success(self.view.window!, document: document) { url in
                NSWorkspace.shared.selectFile(url.path, inFileViewerRootedAtPath: "")
            }
        }
    }
    
    @objc func menuItemClick_Print(_ sender: AnyObject?) {
        guard let snapshot = (sender as? NSMenuItem)?.representedObject as? KMSnapshotWindowController else {
            return
        }
        
        if let image = snapshot.thumbnailWithSize(0) {
            self.delegate?.controller?(controller: self, itemClick: nil, itemKey: .print, params: image)
        }
    }
    
    @objc func menuItemClick_SelectAll(_ sender: AnyObject?) {
        let selected = self._snapshotListIsAllSelected()
        for model in self.snapshots {
            model.isSelected = !selected
        }
        Task { @MainActor in
            self.snapshotTableView.reloadData()
        }
    }
    
    @objc func deleteAllSnapshot(_ sender: AnyObject?) {
        for model in self.snapshots {
            model.windowC?.close()
        }
    }
    
    private func _snapshotListIsAllSelected() -> Bool {
        if self.snapshots.isEmpty {
            return false
        }
        for model in self.snapshots {
            if model.isSelected == false {
                return false
            }
        }
        return true
    }
}

// MARK: - Other

extension KMLeftSideViewController {
    @objc func goToSelectedOutlineItem(_ sender: AnyObject?) {
        let outlineItem = self.tocOutlineView.item(atRow: self.tocOutlineView.selectedRow)
        let outline = self.tocOutlineView
        if let cnt = outline?.selectedRowIndexes.count, cnt == 1 {
            if outlineItem is CPDFOutline {
                let outline = (outlineItem as! CPDFOutline)
                if let des = outline.destination {
                    self.listView.go(to: des)
                } else if let action = outline.action {
                    self.listView.perform(action)
                }
            } else if outlineItem is CPDFBookmark {
                let bookmark = outlineItem as! CPDFBookmark
                self.listView.go(toPageIndex: bookmark.pageIndex, animated: true)
            }
        }
    }
    
    @objc func goToSelectedFindResults(_ sender: AnyObject?) {
        KMPrint("KMLeftSideViewController-goToSelectedFindResults...")
    }
}