PDF_Office/PDF Office/PDF Master/KMClass/KMPDFViewController/KMNDisplayViewController/KMNDisplayViewController.swift

//
//  KMNDisplayViewController.swift
//  PDF Reader Pro
//
//  Created by Niehaoyu on 2024/10/27.
//

import Cocoa
import KMComponentLibrary

@objc protocol KMNDisplayViewControllerDelegate: AnyObject {
    
    //Display Mode
    @objc optional func displayViewControllerDidDisplayModeChanged(_ controller: KMNDisplayViewController)
    
    //阅读模式
    @objc optional func displayViewControllerDidReadModeUpdated(_ controller: KMNDisplayViewController)
    
    //PPT
    @objc optional func displayViewControllerDidGotoSlideShow(_ controller: KMNDisplayViewController)
    
    //SplitView
    @objc optional func displayViewControllerDidSplitModeChanged(_ controller: KMNDisplayViewController)
    
    //SplitView
    @objc optional func displayViewControllerDidSplitFileChanged(_ controller: KMNDisplayViewController)
    
    //SplitView-showToolbar
    @objc optional func displayViewControllerDidToolbarStateChanged(_ controller: KMNDisplayViewController)
    
}

class KMNDisplayViewController: NSViewController {
    
    @IBOutlet var scrollView: NSScrollView!
    
    @IBOutlet var contendBox: NSBox!
    
    @IBOutlet var titleLabel: NSTextField!
    
    @IBOutlet var displayModeView: NSView!
    @IBOutlet var displayModeLabel: NSTextField!
    @IBOutlet var singlePageSelector: ComponentCSelector!
    @IBOutlet var twoPageSelector: ComponentCSelector!
    @IBOutlet var bookSelector: ComponentCSelector!
    @IBOutlet var readModeSelector: ComponentCSelector!
    @IBOutlet var fullScreenSelector: ComponentCSelector!
    @IBOutlet var slideShowSelector: ComponentCSelector!
    
    @IBOutlet var continueScrollCheckBox: ComponentCheckBox!
    @IBOutlet var pageBreaksCheckBox: ComponentCheckBox!
    
    //Split
    @IBOutlet var splitViewBGView: NSView!
    @IBOutlet var splitViewLabel: NSTextField!
    @IBOutlet var noSplitSelector: ComponentCSelector!
    @IBOutlet var verticalSelector: ComponentCSelector!
    @IBOutlet var horizontalSelector: ComponentCSelector!
    
    @IBOutlet var split_selFileButton: ComponentButton!
    @IBOutlet var split_fileInfoView: NSView!
    @IBOutlet var split_fileLabel: NSTextField!
    @IBOutlet var split_syncScrollCheckbox: ComponentCheckBox!
    @IBOutlet var split_showToolbarCheckbox: ComponentCheckBox!
    @IBOutlet var splitViewBGHeightConst: NSLayoutConstraint!
    @IBOutlet var split_SyncScrollTopConst: NSLayoutConstraint!
    
    //Themes
    @IBOutlet var themesBGView: NSView!
    @IBOutlet var themesLabel: NSTextField!
    @IBOutlet var themesContendView: NSView!
    
    @IBOutlet var scrollViewHeightConst: NSLayoutConstraint!
    @IBOutlet var boxHeightConst: NSLayoutConstraint!
    
    private var themesArray: [NSColor] = []
     private var themeEditItem: ComponentCColorItem?
    
    var pdfView: CPDFListView?
    var viewManager: KMPDFViewManager?
    
    weak open var delegate: KMNDisplayViewControllerDelegate?
    
    deinit {
        print("\n\(self.className) deinit.\n")
        
    }
    
    override func viewWillLayout() {
        super.viewWillLayout()
        
        if pdfView?.viewSplitMode == .disable {
            //502
            scrollViewHeightConst.constant = min(boxHeightConst.constant+5, self.view.frame.size.height)
        } else {
            if let _ = viewManager?.splitPDFFileURL {
                //614
                scrollViewHeightConst.constant = min(boxHeightConst.constant+5, self.view.frame.size.height)
                
            } else {
                scrollViewHeightConst.constant = min(boxHeightConst.constant+5, self.view.frame.size.height)
            }
        }
        
        if view.window?.styleMask.contains(.fullScreen) == true {
            fullScreenSelector.properties.state = .pressed
        } else {
            fullScreenSelector.properties.state = .normal
        }
        fullScreenSelector.reloadData()
        
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do view setup here.
        
        scrollView.documentView = contendBox
        
        scrollView.backgroundColor = NSColor.clear
        
        setupPropertys()
        
        reloadData()
    }
    
    func setupPropertys() {
        
        view.wantsLayer = true
        view.layer?.backgroundColor = ComponentLibrary.shared.getComponentColorFromKey("colorBg/layout-middle").cgColor
        
        titleLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("colorText/2")
        titleLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-m-bold")
        titleLabel.stringValue = KMLocalizedString("View")
        
        displayModeLabel.stringValue = KMLocalizedString("Display Mode")
        displayModeLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("colorText/2")
        displayModeLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-s-medium")
        
        singlePageSelector.properties = ComponentCSelectorProperty.init(size: .m, state: .normal, text: KMLocalizedString("Single Page"), iconImage: NSImage(named: "display_singlePage"))
        twoPageSelector.properties = ComponentCSelectorProperty.init(size: .m, state: .normal, text: KMLocalizedString("Two Page"), iconImage: NSImage(named: "display_twoPage"))
        bookSelector.properties = ComponentCSelectorProperty.init(size: .m, state: .normal, text: KMLocalizedString("Book"), iconImage: NSImage(named: "display_book"))
        readModeSelector.properties = ComponentCSelectorProperty.init(size: .m, state: .normal, text: KMLocalizedString("Read Mode"), iconImage: NSImage(named: "display_readMode"))
        fullScreenSelector.properties = ComponentCSelectorProperty.init(size: .m, state: .normal, text: KMLocalizedString("Full Screen"), iconImage: NSImage(named: "display_fullscreen"))
        slideShowSelector.properties = ComponentCSelectorProperty.init(size: .m, state: .normal, text: KMLocalizedString("Slide Show"), iconImage: NSImage(named: "display_slideShow"))
        
        singlePageSelector.setTarget(self, action: #selector(selectorClicked(_:)))
        twoPageSelector.setTarget(self, action: #selector(selectorClicked(_:)))
        bookSelector.setTarget(self, action: #selector(selectorClicked(_:)))
        readModeSelector.setTarget(self, action: #selector(selectorClicked(_:)))
        fullScreenSelector.setTarget(self, action: #selector(selectorClicked(_:)))
        slideShowSelector.setTarget(self, action: #selector(selectorClicked(_:)))
        
        continueScrollCheckBox.properties = ComponentCheckBoxProperty(size: .s,
                                                                      state: .normal,
                                                                      text: KMLocalizedString("Continuous Scroll"),
                                                                      checkboxType: .normal)
        
        pageBreaksCheckBox.properties = ComponentCheckBoxProperty(size: .s,
                                                                  state: .normal,
                                                                  text: KMLocalizedString("Page Breaks"),
                                                                  checkboxType: .normal)
        
        continueScrollCheckBox.setTarget(self, action: #selector(checkBoxClicked(_:)))
        pageBreaksCheckBox.setTarget(self, action: #selector(checkBoxClicked(_:)))
        
        //Split
        splitViewLabel.stringValue = KMLocalizedString("Split View")
        splitViewLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("colorText/2")
        splitViewLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-s-medium")
        
        noSplitSelector.properties = ComponentCSelectorProperty.init(size: .m, state: .normal, text: KMLocalizedString("No Split"), iconImage: NSImage(named: "display_noSplit"))
        verticalSelector.properties = ComponentCSelectorProperty.init(size: .m, state: .normal, text: KMLocalizedString("Vertical"), iconImage: NSImage(named: "display_verticalSplit"))
        horizontalSelector.properties = ComponentCSelectorProperty.init(size: .m, state: .normal, text: KMLocalizedString("Horizontal"), iconImage: NSImage(named: "display_horizontalSplit"))
        
        noSplitSelector.setTarget(self, action: #selector(selectorClicked(_:)))
        verticalSelector.setTarget(self, action: #selector(selectorClicked(_:)))
        horizontalSelector.setTarget(self, action: #selector(selectorClicked(_:)))
        
        split_selFileButton.properties = ComponentButtonProperty(type: .default_tertiary, size: .s, buttonText: KMLocalizedString("Select File"), keepPressState: false)
        split_selFileButton.setTarget(self, action: #selector(splitSelFileButtonClicked(_:)))
        
        split_fileInfoView.wantsLayer = true
        split_fileInfoView.layer?.borderWidth = 1
        if let value = ComponentLibrary.shared.getComponentValueFromKey("radius/xs") {
            let currentValue = value as! CGFloat
            split_fileInfoView.layer?.cornerRadius = currentValue
        }
        split_fileInfoView.layer?.borderColor = ComponentLibrary.shared.getComponentColorFromKey("colorBorder/4").cgColor
        split_fileInfoView.layer?.backgroundColor = ComponentLibrary.shared.getComponentColorFromKey("colorFill/4").cgColor
        
        
        split_syncScrollCheckbox.properties = ComponentCheckBoxProperty(size: .s,
                                                                        state: .normal,
                                                                        text: KMLocalizedString("Sync Scroll and Zoom"),
                                                                        checkboxType: .normal)
        
        split_showToolbarCheckbox.properties = ComponentCheckBoxProperty(size: .s,
                                                                         state: .normal,
                                                                         text: KMLocalizedString("Show Bottom Toolbar"),
                                                                         checkboxType: .normal)
        split_syncScrollCheckbox.setTarget(self, action: #selector(checkBoxClicked(_:)))
        split_showToolbarCheckbox.setTarget(self, action: #selector(checkBoxClicked(_:)))
        
        
        
        //Themes
        themesLabel.stringValue = KMLocalizedString("Themes")
        themesLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("colorText/2")
        themesLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-s-medium")
        
        
    }
    
    func reloadData() {
        let mode = pdfView?.displayMode() ?? .singlePage
        let book = pdfView?.displaysAsBook ?? false
        
        singlePageSelector.properties.state = .normal
        twoPageSelector.properties.state = .normal
        bookSelector.properties.state = .normal
        readModeSelector.properties.state = .normal
        fullScreenSelector.properties.state = .normal
        slideShowSelector.properties.state = .normal
        
        bookSelector.properties.state = .normal
        if mode == .singlePage {
            singlePageSelector.properties.state = .pressed
            continueScrollCheckBox.properties.checkboxType = .normal
            
        } else if mode == .singlePageContinuous {
            singlePageSelector.properties.state = .pressed
            continueScrollCheckBox.properties.checkboxType = .selected
            
        } else if mode == .twoUp {
            bookSelector.properties.state = book ? .pressed : .normal
            twoPageSelector.properties.state = book ? .normal : .pressed
            
            continueScrollCheckBox.properties.checkboxType = .normal
            
        } else if mode == .twoUpContinuous {
            bookSelector.properties.state = book ? .pressed : .normal
            twoPageSelector.properties.state = book ? .normal : .pressed
            
            continueScrollCheckBox.properties.checkboxType = .selected
        }
        
        let pageBreaks = pdfView?.displaysPageBreaks ?? false
        pageBreaksCheckBox.properties.checkboxType = pageBreaks ? .selected : .normal
        
        singlePageSelector.reloadData()
        twoPageSelector.reloadData()
        bookSelector.reloadData()
        readModeSelector.reloadData()
        fullScreenSelector.reloadData()
        slideShowSelector.reloadData()
        
        continueScrollCheckBox.reloadData()
        pageBreaksCheckBox.reloadData()
        
        //SplitView
        noSplitSelector.properties.state = .normal
        verticalSelector.properties.state = .normal
        horizontalSelector.properties.state = .normal
        
        if pdfView?.viewSplitMode == .disable {
            noSplitSelector.properties.state = .pressed
        } else if pdfView?.viewSplitMode == .horizontal {
            horizontalSelector.properties.state = .pressed
        } else if pdfView?.viewSplitMode == .vertical {
            verticalSelector.properties.state = .pressed
        }
        
        split_syncScrollCheckbox.properties.checkboxType = viewManager?.splitSyncScroll == true ? .selected : .normal
        split_showToolbarCheckbox.properties.checkboxType = viewManager?.splitShowBottomBar == true ? .selected : .normal
        
        if let fileUrl = viewManager?.splitPDFFileURL {
            split_fileLabel.stringValue = fileUrl.lastPathComponent
        }
        
        noSplitSelector.reloadData()
        horizontalSelector.reloadData()
        verticalSelector.reloadData()
        
        split_syncScrollCheckbox.reloadData()
        split_showToolbarCheckbox.reloadData()
        
        refreshSplitView()
        
        //Themes
        var data: Data? = nil
        if let themesData = UserDefaults.standard.object(forKey: "kmPDFViewModeThemesArray") as? Data {
            data = themesData
        }
        
        let appArray = NSKeyedUnarchiver.unarchiveObject(with: data ?? Data()) as? [Any] ?? []
        let mutableArray = appArray
        if mutableArray.count > 0 {
            themesArray = mutableArray as! [NSColor]
        } else {
            let normalColor = NSColor.white
            let softColor = NSColor(deviceRed: 245/255.0, green: 237/255.0, blue: 203/255.0, alpha: 1.0)
            let nightColor = NSColor.black
            let greenColor = NSColor(deviceRed: 201/255.0, green: 228/255.0, blue: 198/255.0, alpha: 1.0)
            themesArray = [normalColor, softColor, greenColor, nightColor]
        }
        setUpThemesItems()
        
    }
    
    //MARK: - Split
    func refreshSplitView() {
        if pdfView?.viewSplitMode == .disable {
            splitViewBGHeightConst.constant = 90
            split_selFileButton.isHidden = true
            split_fileInfoView.isHidden = true
            split_syncScrollCheckbox.isHidden = true
            split_showToolbarCheckbox.isHidden = true
        } else {
            if (viewManager?.splitPDFFileURL) != nil {
                splitViewBGHeightConst.constant = 246
                split_SyncScrollTopConst.constant = 52
                split_selFileButton.isHidden = false
                split_fileInfoView.isHidden = false
                split_syncScrollCheckbox.isHidden = false
                split_showToolbarCheckbox.isHidden = false
                
            } else {
                splitViewBGHeightConst.constant = 202
                split_SyncScrollTopConst.constant = 8
                
                split_selFileButton.isHidden = false
                split_fileInfoView.isHidden = true
                split_syncScrollCheckbox.isHidden = false
                split_showToolbarCheckbox.isHidden = false
                
            }
        }
        
        if pdfView?.viewSplitMode == .disable {
            boxHeightConst.constant = 502
            scrollViewHeightConst.constant = min(boxHeightConst.constant, self.view.frame.size.height)
        } else {
            if let _ = viewManager?.splitPDFFileURL {
                boxHeightConst.constant = 658 + 12
                scrollViewHeightConst.constant = min(boxHeightConst.constant, self.view.frame.size.height)
            } else {
                boxHeightConst.constant = 614 + 12
                scrollViewHeightConst.constant = min(boxHeightConst.constant, self.view.frame.size.height)
            }
        }
    }
    
    //MARK: - Themes
    func setUpThemesItems() {
        let subviews = themesContendView.subviews
        for view in subviews {
            if view is ComponentCColorItem {
                view.removeFromSuperview()
            } else if view is ComponentButton {
                view.removeFromSuperview()
            }
        }
        
        //MAX = 10
        var xValue: CGFloat = 0
        var yValue = CGRectGetHeight(themesContendView.frame) - 32
        
        for index in 0...themesArray.count-1 {
            let color = themesArray[index]
            
            if index%5 == 0 {
                xValue = 0
            }
            if index/5 == 1 {
                yValue = 0
            }
            
            let colorItem = ComponentCColorItem.init()
            colorItem.delegate = self
            colorItem.frame = CGRectMake(xValue, yValue, 32, 32)
            colorItem.properties = ComponentCColorProperty(colorType: .color, state: .normal, isCustom: false, color: color)
            
            xValue += 32
            xValue += 18
            if index == 0 {
                colorItem.properties?.identifier = "normal"
            } else if index == 1 {
                colorItem.properties?.identifier = "soft"
            } else if index == 2 {
                colorItem.properties?.identifier = "night"
            } else if index == 3 {
                colorItem.properties?.identifier = "green"
            } else {
                colorItem.properties?.identifier = "custom"
            }
            
            if pdfView?.displayMode == .normal {
                if index == 0 {
                    colorItem.properties?.state = .pressed
                }
            } else if pdfView?.displayMode == .soft {
                if index == 1 {
                    colorItem.properties?.state = .pressed
                }
            } else if pdfView?.displayMode == .night {
                if index == 3 {
                    colorItem.properties?.state = .pressed
                }
            } else if pdfView?.displayMode == .green {
                if index == 2 {
                    colorItem.properties?.state = .pressed
                }
            } else if pdfView?.displayMode == .custom {
                if color == pdfView?.displayModeCustomColor {
                    colorItem.properties?.state = .pressed
                }
            }
            colorItem.reloadData()
            themesContendView.addSubview(colorItem)
        }
        if themesArray.count < 10 {
            if themesArray.count%5 == 0 {
                xValue = 0
            }
            if themesArray.count/5 == 1 {
                yValue = 0
            }
            let addButton = ComponentButton.init()
            addButton.frame = CGRectMake(xValue, yValue, 32, 32)
            addButton.properties = ComponentButtonProperty(type: .text_gray, size: .s, onlyIcon: true, icon: NSImage(named: "toolbar_plus"), keepPressState: false)
            addButton.setTarget(self, action: #selector(themeAddButtonClicked(_:)))
            themesContendView.addSubview(addButton)
        }
        
    }
    
    func refreshColorItems() {
        let subviews = themesContendView.subviews
        for view in subviews {
            if view is ComponentCColorItem {
                if (view as! ComponentCColorItem).properties?.color == pdfView?.displayModeCustomColor {
                    (view as! ComponentCColorItem).properties?.state = .pressed
                } else {
                    (view as! ComponentCColorItem).properties?.state = .normal
                }
                (view as! ComponentCColorItem).reloadData()
            }
        }
        
    }
    
    @objc func saveThemeColors() {
        themesArray.removeAll()
        
        let subviews = themesContendView.subviews
        for view in subviews {
            if view is ComponentCColorItem {
                if let color = (view as! ComponentCColorItem).properties?.color {
                    themesArray.append(color)
                }
            }
        }
        
        refreshColorItems()
        
        let data = NSKeyedArchiver.archivedData(withRootObject: themesArray)
        UserDefaults.standard.set(data, forKey: "kmPDFViewModeThemesArray")
        UserDefaults.standard.synchronize()
    }
    
    //MARK: - Action
    @objc func selectorClicked(_ sender: ComponentCSelector) {
        if sender == singlePageSelector {
            singlePageSelector.properties.state = .pressed
            twoPageSelector.properties.state = .normal
            bookSelector.properties.state = .normal
            
            updatePDFViewDisplayInfo()
            
        } else if sender == twoPageSelector {
            singlePageSelector.properties.state = .normal
            twoPageSelector.properties.state = .pressed
            bookSelector.properties.state = .normal
            
            updatePDFViewDisplayInfo()
            
        } else if sender == bookSelector {
            singlePageSelector.properties.state = .normal
            twoPageSelector.properties.state = .normal
            bookSelector.properties.state = .pressed
            
            updatePDFViewDisplayInfo()
            
        } else if sender == readModeSelector {
            if let manager = viewManager {
                manager.isPDFReadMode = !manager.isPDFReadMode
            }
            readModeSelector.properties.state = .normal
            
            delegate?.displayViewControllerDidReadModeUpdated?(self)
            
        } else if sender == fullScreenSelector {
            view.window?.toggleFullScreen(nil)
            
            if view.window?.styleMask.contains(.fullScreen) == true {
                fullScreenSelector.properties.state = .pressed
            } else {
                fullScreenSelector.properties.state = .normal
            }
            fullScreenSelector.reloadData()
            
        } else if sender == slideShowSelector {
            slideShowSelector.properties.state = .normal
            
            delegate?.displayViewControllerDidGotoSlideShow?(self)
            
        } else if sender == noSplitSelector {
            pdfView?.viewSplitMode = .disable
            
            refreshSplitView()
            
            updatePDFSplitViewInfo()
            
        } else if sender == verticalSelector {
            pdfView?.viewSplitMode = .vertical
            
            refreshSplitView()
            
            updatePDFSplitViewInfo()
        } else if sender == horizontalSelector {
            pdfView?.viewSplitMode = .horizontal
            
            refreshSplitView()
            
            updatePDFSplitViewInfo()
        }
        
        reloadData()
    }
    
    @objc func checkBoxClicked(_ sender: ComponentCheckBox) {
        if sender == continueScrollCheckBox {
            updatePDFViewDisplayInfo()
            
        } else if sender == pageBreaksCheckBox {
            pdfView?.displaysPageBreaks = pageBreaksCheckBox.properties.checkboxType == .selected ? true : false
            
            updatePDFViewDisplayInfo()
            
        } else if sender == split_syncScrollCheckbox {
            viewManager?.splitSyncScroll = split_syncScrollCheckbox.properties.checkboxType == .selected ? true : false
            
        } else if sender == split_showToolbarCheckbox {
            viewManager?.splitShowBottomBar = split_showToolbarCheckbox.properties.checkboxType == .selected ? true : false
            
            delegate?.displayViewControllerDidToolbarStateChanged?(self)
        }
        reloadData()
    }
    
    @objc func themeAddButtonClicked(_ sender: ComponentButton) {
        let color = KMAppearance.Layout.l_1Color()
        themesArray.append(color)
        
        pdfView?.setPageBackgroundColorWith(color, viewMode: .other)
        
        setUpThemesItems()
        
        let subviews = themesContendView.subviews
        for view in subviews {
            if view is ComponentCColorItem {
                themeEditItem = (view as! ComponentCColorItem)
            }
        }
        showColorPanel()
        
        saveThemeColors()
    }
    
    @objc private func showColorPanel() {
        let panel = NSColorPanel.shared
        panel.setTarget(self)
        panel.setAction(#selector(colorPanelAction))
        panel.orderFront(nil)
    }
    
    @objc private func colorPanelAction(sender: NSColorPanel) {
        if let item = themeEditItem {
            item.properties?.color = sender.color
            item.reloadData()
            
            pdfView?.setPageBackgroundColorWith(sender.color, viewMode: .other)
            
            NSObject.cancelPreviousPerformRequests(withTarget: self, selector: #selector(saveThemeColors), object: nil)
            self.perform(#selector(saveThemeColors), with: nil, afterDelay: 0.35)
        }
    }
    
    @objc func splitSelFileButtonClicked(_ sender: ComponentButton) {
        let openPanel = NSOpenPanel()
        openPanel.allowedFileTypes = ["pdf","PDF"]
        openPanel.allowsMultipleSelection = false
        openPanel.beginSheetModal(for: self.view.window!) { [weak self] result in
            if (result == .OK) {
                guard let weakSelf = self else { return }
                
                let fileURL = openPanel.url
                let pdfDoc = CPDFDocument(url: fileURL)
                if let data = pdfDoc?.isLocked, data {
                    DispatchQueue.main.asyncAfter(deadline: .now()+0.5) {
                        self?.view.window?.windowController?.showCheckPassword(url: fileURL ?? NSURL.fileURL(withPath: ""), type: .owner) { result, pwd in
                            if (pwd.isEmpty == false) {
                                
                            }
                        }
                    }
                } else {
                    weakSelf.viewManager?.splitPDFFileURL = fileURL
                    
                    weakSelf.reloadData()
                }
                weakSelf.delegate?.displayViewControllerDidSplitFileChanged?(weakSelf)
            }
        }
    }
    
    //MARK: - Update
    func updatePDFViewDisplayInfo() {
        var pdfViewMode: CPDFDisplayViewMode = .singlePage
        if singlePageSelector.properties.state == .pressed {
            if continueScrollCheckBox.properties.checkboxType == .selected {
                pdfViewMode = .singlePageContinuous
            }
            pdfView?.setDisplay(pdfViewMode)
            
        } else if twoPageSelector.properties.state == .pressed {
            pdfViewMode = .twoUp
            if continueScrollCheckBox.properties.checkboxType == .selected {
                pdfViewMode = .twoUpContinuous
            }
            pdfView?.setDisplay(pdfViewMode)
            
        } else if bookSelector.properties.state == .pressed {
            //书本模式
            pdfView?.displaysAsBook = true
            pdfView?.displayTwoUp = true
            if continueScrollCheckBox.properties.checkboxType == .selected {
                pdfView?.displayDirection = .vertical
            } else {
                pdfView?.displayDirection = .horizontal
            }
        }
        
        delegate?.displayViewControllerDidDisplayModeChanged?(self)
    }
    
    func updatePDFSplitViewInfo() {
        
        delegate?.displayViewControllerDidSplitModeChanged?(self)
    }
    
    //MARK: - Mouse
     
}

//MARK: - ComponentCColorDelegate
extension KMNDisplayViewController: ComponentCColorDelegate {
    
    func componentCColorDidChooseColor(_ view: NSView, _ color: NSColor?) {
        
        if view is ComponentCColorItem {
            if (view as! ComponentCColorItem) != themeEditItem {
                themeEditItem = nil
                if NSColorPanel.shared.isVisible {
                    NSColorPanel.shared.setTarget(nil)
                    NSColorPanel.shared.setAction(nil)
                    NSColorPanel.shared.close()
                }
            }
        }
        
        let subviews = themesContendView.subviews
        let index = subviews.firstIndex(of: view) ?? 0
        
        var model: KMPDFViewMode = .normal
        if index <= 3 {
            if index == 0 {
                model = .normal
            } else if index == 1 {
                model = .soft
            } else if index == 2 {
                model = .green
            } else if index == 3 {
                model = .night
            }
        } else {
            model = .other
        }
        pdfView?.setPageBackgroundColorWith(color, viewMode: model)
        
        for subview in subviews {
            if subview is ComponentCColorItem {
                if subview != view {
                    (subview as! ComponentCColorItem).properties?.state = .normal
                    (subview as! ComponentCColorItem).reloadData()
                }
            }
        }
    }
     
    func componentCColorDidRightMouseUpWithStrings(_ view: NSView) -> [String] {
        let subviews = themesContendView.subviews
        let index = subviews.firstIndex(of: view) ?? 0
        
        if index <= 3 {
             
        } else {
            if view is ComponentCColorItem {
                if (view as! ComponentCColorItem) != themeEditItem {
                    themeEditItem = (view as! ComponentCColorItem)
                }
            }
            return [KMLocalizedString("Delete")]
        }
        return []
    }
    
    func componentCColorDidRightMenuItemClicked(_ view: NSView, menuItemProperty: ComponentMenuitemProperty?) {
        if let item = themeEditItem, let color = item.properties?.color {
            if let index = themesArray.firstIndex(of: color) {
                themesArray.remove(at: index)
            }
        }
        
        setUpThemesItems()
        
        saveThemeColors()
        
    }
}