//
//  KMCropTipView.swift
//  PDF Reader Pro
//
//  Created by tangchao on 2023/1/4.
//

import Cocoa

typealias KMCropTipViewEnterAction = ()->()
class KMCropTipView: NSView {
    
    private var contentView = NSView()
    private var label = NSTextField(labelWithString: "")
    
    private var localMonitor: Any!
    
    var enterAction: KMCropTipViewEnterAction!
    
    deinit {
        NSEvent.removeMonitor(self.localMonitor as Any)
        self.localMonitor = nil
    }
    
    override init(frame frameRect: NSRect) {
        super.init(frame: frameRect)
        
        initSubviews()
    }
    
    required init?(coder: NSCoder) {
        super.init(coder: coder)
        
        initSubviews()
    }
    
    func initSubviews() {
        self.addSubview(self.contentView)
        self.contentView.addSubview(self.label)
        
        self.contentView.wantsLayer = true
        self.contentView.layer?.backgroundColor = NSColor(red: 17.0/255.0, green: 138.0/255.0, blue: 1.0, alpha: 1.0).cgColor
        
        self.label.textColor = NSColor.white
        self.label.font = NSFont.systemFont(ofSize: 14)
        self.label.alignment = .center
        
        self.localMonitor = NSEvent.addLocalMonitorForEvents(matching: .keyUp, handler: {
            [weak self] (event: NSEvent) -> NSEvent in
            if (event.keyCode != 36) {
                return event
            }
            
            guard let callback = self!.enterAction else {
                return event
            }
            
            callback()
            
            return event
        })
    }
    
    override func layout() {
        super.layout()
        
        let width: CGFloat = NSWidth(self.bounds)
        let height: CGFloat = NSHeight(self.bounds)
        
        let contentWidth: CGFloat = 186
        let contentHeight: CGFloat = 32
        self.contentView.frame = NSMakeRect((width-contentWidth)*0.5, (height-contentHeight)*0.5, contentWidth, contentHeight)
        self.label.frame = NSMakeRect(0, 5, contentWidth, 22)
    }
    
    func setString(string: String) {
        self.label.stringValue = string
    }
}