mac学习-NSMenu右击弹框操作

        // 右击菜单
        let rightMenu = NSMenu.init()
        rightMenu.setAccessibilityEnabled(true)
        let uploadFileItem = rightMenu.addItem(withTitle: "上传", action: #selector(uploadByRightMenu), keyEquivalent: "")
        uploadFileItem.isEnabled = true
        uploadFileItem.target = self
        let createFolderItem = rightMenu.addItem(withTitle: "新建文件夹", action: #selector(createFolderByRightMenu), keyEquivalent: "")
        createFolderItem.isEnabled = true
        createFolderItem.target = self
        // 加隔线
        rightMenu.addItem(NSMenuItem.separator())
        let reloadFileItem = rightMenu.addItem(withTitle: "刷新", action: #selector(reloadByRightMenu), keyEquivalent: "")
        reloadFileItem.isEnabled = true
        reloadFileItem.target = self
        let sortFileItem = rightMenu.addItem(withTitle: "排序", action: nil, keyEquivalent: "")
        sortFileItem.isEnabled = true
        let sortMenu = NSMenu.init()
        let sortByNameItem = sortMenu.addItem(withTitle: "名称", action: #selector(sortNameByRightMenu), keyEquivalent: "")
        sortByNameItem.isEnabled = true
        sortByNameItem.target = self
        let sortBySizeItem = sortMenu.addItem(withTitle: "大小", action: #selector(sortSizeByRightMenu), keyEquivalent: "")
        sortBySizeItem.isEnabled = true
        sortBySizeItem.target = self
        let sortByTimeItem = sortMenu.addItem(withTitle: "修改时间", action: #selector(sortTimeByRightMenu), keyEquivalent: "")
        sortByTimeItem.isEnabled = true
        sortByTimeItem.target = self
        // 为某个item设置二级目录
        sortFileItem.submenu = sortMenu
        switch FileCoreManager.getCurr().getModule().getSortType() {
        case FileModule.FileSortBasis.name:
            // 左侧增加对勾
            sortByNameItem.state = 1
        case FileModule.FileSortBasis.size:
            // 左侧增加对勾
            sortBySizeItem.state = 1
        case FileModule.FileSortBasis.mtime:
            // 左侧增加对勾
            sortByTimeItem.state = 1
        }
        rightMenu.autoenablesItems = false
        // 获取鼠标在Window的位置
        let point = event.locationInWindow
        // 设置弹出位置并且弹出
        rightMenu.popUp(positioning: nil, at: NSPoint.init(x: point.x - 134, y: 600 - point.y), in: self.collectionView)