WPF 实现 Chrome 内核的 Webbrowser

1. 使用 Nuget 添加 cefsharp.wpf 库

2. 窗口中使用

xmlns:chrome="clr-namespace:CefSharp.Wpf;assembly=CefSharp.Wpf"

<chrome:ChromiumWebBrowser x:Name="wbrReport"/>

3. 打开指定的 URL

// 加载 URL
this.wbrReport.Address = "www.baidu.com";

4. Cefsharp.wpf 给 javascript 提供接口

  1. 设置外部调用的对象

	public class NtstJSObject
	{
		/// <summary>
		/// 提供给 Javascript 的对象
		/// </summary>
		public static string ExportedJavascriptOjbectName = "ntst";

		private ReportWindow _reportWindow = null;
		public NtstJSObject(ReportWindow reportWindow)
		{
			this._reportWindow = reportWindow;
		}

		/// <summary>
		/// 提供给 Javascript 调用的 closeWindow 接口
		/// </summary>
		public void closeWindow()
		{
			if(this._reportWindow != null)
			{
				this._reportWindow.CloseWindow(this);
			}
		}
	}

  2. 窗体构造函数中绑定 js 对象

	// 绑定 Javascript 调用对象
	CefSharpSettings.WcfEnabled = true;
	this.wbrReport.JavascriptObjectRepository.Settings.LegacyBindingEnabled = true;
	this.wbrReport.JavascriptObjectRepository.Register(NtstJSObject.ExportedJavascriptOjbectName, new NtstJSObject(this), false, BindingOptions.DefaultBinder);
    // 这种写法在报告关闭时,会报 PipeException、CommunicationException 异常,取管道时出错: 管道已结束
    // 正确写法如下:
	CefSharpSettings.WcfEnabled = false;
	this.wbrReport.JavascriptObjectRepository.Settings.LegacyBindingEnabled = true;
	this.wbrReport.JavascriptObjectRepository.Register(NtstJSObject.ExportedJavascriptOjbectName, new NtstJSObject(this), true, BindingOptions.DefaultBinder);

  3. 窗口提供真正调用接口

	/// <summary>
	/// Javascript 接口:closeWindow
	/// </summary>
	/// <param name="ntstJSObject"></param>
	public void CloseWindow(NtstJSObject ntstJSObject)
	{
		if(this._logger != null)
		{
			this._logger.WriteInformation(string.Format("Javascript call to: {0}", nameof(CloseWindow)));
		}

		this.Dispatcher.Invoke(new Action(() =>
		{
			this.Close();
		}));
	}

  4. Javascript 调用方式

ntst.closeWindow()

  

  

posted @ 2021-03-04 14:53  wild-coffee  阅读(2745)  评论(0编辑  收藏  举报