using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using CefSharp;
using CefSharp.WinForms;

namespace TestWebview
{
    public class CefCustomObject
    {
        // Declare a local instance of chromium and the main form in order to execute things from here in the main thread
        private static ChromiumWebBrowser _instanceBrowser = null;
        // The form class needs to be changed according to yours
        private static Form1 _instanceMainForm = null;

        public CefCustomObject(ChromiumWebBrowser originalBrowser, Form1 mainForm)
        {
            _instanceBrowser = originalBrowser;
            _instanceMainForm = mainForm;
        }

        /// <summary>
        /// 窗口加载完毕时需要出发的全局JS对象；
        /// </summary>
        public void OnFrameLoadEnd(object sender, FrameLoadEndEventArgs e)
        {
            if (e.Frame.IsMain)
            {
                _instanceBrowser.ExecuteScriptAsync(@"
              document.body.onmouseup = function()
              {
                bound.onSelected(window.getSelection().toString());
              }
            ");
            }
        }

       
        /// <summary>
        /// 显示一个弹出对话框,前端JS调用的方法
        /// </summary>
        /// <param name="msg">传入参数</param>
        public void showAlertMsg(string msg)
        {
            MessageBox.Show("Msg From Web JS: [" + msg + "]");
        }

    }
}