cefsharp学习笔记

Posted 2020-10-16 我的E家园

环境：VS2015+cefsharp 57.0

全部代码如下：

using System;
using CefSharp;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using CefSharp.WinForms;

namespace mycef
{
    public partial class Form1 : Form
    {
        public ChromiumWebBrowser webBrower;
        public Form1()
        {
            InitializeComponent();
            Load += Form1_Load;
        }



        private void Form1_Load(object sender, EventArgs e)
        {
            string path = "www.029gc.cn";
            webBrower = new ChromiumWebBrowser(path);
            webBrower.LifeSpanHandler = new OpenPageSelf(); //限制网页内部打开
            webBrower.Dock = DockStyle.Fill;//填充方式
            this.Controls.Add(webBrower);
            
        }

        private void button3_Click(object sender, EventArgs e)
        {

           // webBrower.GetBrowser().Reload(true);
           string url =  webBrower.GetMainFrame().Url.ToString();  //获取网址
            MessageBox.Show(url);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            webBrower.GetBrowser().GoBack();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            webBrower.GetBrowser().GoForward();
        }
    }

    internal class OpenPageSelf : ILifeSpanHandler
    {
        public bool DoClose(IWebBrowser browserControl, IBrowser browser)
        {
            return false;
        }

        public void OnAfterCreated(IWebBrowser browserControl, IBrowser browser)
        {

        }

        public void OnBeforeClose(IWebBrowser browserControl, IBrowser browser)
        {

        }

        public bool OnBeforePopup(IWebBrowser browserControl, IBrowser browser, IFrame frame, string targetUrl,
string targetFrameName, WindowOpenDisposition targetDisposition, bool userGesture, IPopupFeatures popupFeatures,
IWindowInfo windowInfo, IBrowserSettings browserSettings, ref bool nojavascriptAccess, out IWebBrowser newBrowser)
        {
            newBrowser = null;
            var chromiumWebBrowser = (ChromiumWebBrowser)browserControl;
            chromiumWebBrowser.Load(targetUrl);
            return true; 
        }
    }

}