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()
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