嵌入铬 - CefSharp.Wpf WebView 无法接受输入，链接单击没有响应

Question

我在应用程序中使用了CefSharp.Wpf。 版本：1.25.7。

我通过CefSharp WebView托管了该网页。我可以在其中托管我的网页。但是 WebView 中的文本框无法接受输入，并且超链接无法响应。

这是我的代码。我创建了一个名为 WebPageOemViewer 的 WPF 用户控件。

Xaml：

<UserControl x:Class="WebPageOemViewer"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             mc:Ignorable="d" 
             d:DesignHeight="300" 
             d:DesignWidth="300">
    <Grid x:Name="MainZone">
    </Grid>
</UserControl>

代码隐藏：

public partial class WebPageOemViewer : UserControl, IRequestHandler
    {
        private WebView browser;
        public WebPageOemViewer(string url)
        {
            InitializeComponent();
            CEF.Initialize(new Settings { LogSeverity = LogSeverity.Disable, PackLoadingDisabled = true });
            var browserSettings = new BrowserSettings { ApplicationCacheDisabled = true, PageCacheDisabled = true };
            browser = new WebView(string.Empty, browserSettings)
            {
                Address = url,
                RequestHandler = this,
                Background = Brushes.White
            };
            browser.LoadCompleted += Browser_LoadCompleted;
            CEFJsObjectProcessor processor = new CEFJsObjectProcessor();
            browser.RegisterJsObject("CEFJsObject", processor);
            MainZone.Children.Insert(0, browser);
        }
        public void View(string url)
        {
            if (browser.IsBrowserInitialized)
            {
                browser.Visibility = Visibility.Hidden;
                browser.Load(url);
            }
        }
        public void Close()
        {
            browser.Dispose();
            MainZone.Children.Remove(browser);
        }
        public static void Shutdown()
        {
            Thread.Sleep(1000);
            if (CEF.IsInitialized)
            {
                CEF.Shutdown();
            }
        }
        private void Browser_LoadCompleted(object sender, LoadCompletedEventArgs e)
        {
            Dispatcher.Invoke(new Action(() =>
            {
                browser.Visibility = Visibility.Visible;
            }));
        }
        #region IRequestHandler
        public bool GetAuthCredentials(IWebBrowser browser, bool isProxy, string host, int port, string realm, string scheme, ref string username, ref string password)
        {
            return false;
        }
        public bool GetDownloadHandler(IWebBrowser browser, string mimeType, string fileName, long contentLength, ref IDownloadHandler handler)
        {
            return true;
        }
        public bool OnBeforeBrowse(IWebBrowser browser, IRequest request, NavigationType naigationvType, bool isRedirect)
        {
            return false;
        }
        public bool OnBeforeResourceLoad(IWebBrowser browser, IRequestResponse requestResponse)
        {
            var headers = requestResponse.Request.GetHeaders();
            headers[Constants.Common.HttpHeaderFromKey] = Constants.Common.HttpHeaderFromValue;
            requestResponse.Request.SetHeaders(headers);
            return false;
        }
        public void OnResourceResponse(IWebBrowser browser, string url, int status, string statusText, string mimeType, System.Net.WebHeaderCollection headers)
        {
        }
        #endregion
        internal class CEFJsObjectProcessor
        {
            public event Action<string> Completed;
            private void CompletedInfo(string parameter)
            {
                if (Completed != null)
                {
                    Completed(parameter);
                }
            }
        }
    }
I host the Usercontrol in a Window named FillUserInfoWindow
Xaml:
<Window x:Class="FillUserInfoWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:lcmb="clr-namespace:FClassroom.Presentation.Controls.MessageBoxes"
        Title="填写基础信息"
        WindowStartupLocation="CenterScreen"
        Width="770"
        Height="530"
        Loaded="FillUserInfoWindow_Loaded">
    <Grid x:Name="MainClient">
    </Grid>
</Window>
Code behind:
public partial class FillUserInfoWindow : Window
    {
        private WebPageOemViewer _viewer;
        private string _url = string.Empty;
        public FillUserInfoWindow()
        {
            InitializeComponent();
        }
        public FillUserInfoWindow(string url) 
        {
            _url = url;
            InitializeComponent();
        }
        private void FillUserInfoWindow_Loaded(object sender, RoutedEventArgs e)
        {
            Button CloseButton = this.Template.FindName("CloseButton", this) as Button;
            CloseButton.Click += CloseButton_Click;
            if(_viewer != null)
            {
                _viewer.Visibility = Visibility.Visible;
            }
            LoadWebPage(_url);
        }
        private void CloseButton_Click(object sender, RoutedEventArgs e)
        {
            Shutdown();
            Close();
        }
        protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
        {
            DragMove();
            base.OnMouseLeftButtonDown(e);
        }
        private void LoadWebPage(string url)
        {
            Application.Current.Dispatcher.Invoke(new Action(() => {
                if (_viewer == null)
                {
                    _viewer = new WebPageOemViewer(url);
                    MainClient.Children.Insert(0, _viewer);
                }
                _viewer.Visibility = Visibility.Visible;
                _viewer.View(url);
            }));
        }
        public void Shutdown()
        {
            if(_viewer != null)
            {
                _viewer.Close();
            }
        }
    }

网页将显示在窗口中。但是搜索框和超链接没有响应。我也尝试了最新的CefSharp.Wpf。两者都不能工作。

string address = "http://www.bing.com";
FillUserInfoWindow fills = new FillUserInfoWindow(address);
fills.ShowDialog();

您可以通过上面的代码重现此问题。谢谢你的时间。

Answer 1

最后，我从 https://github.com/cefsharp/CefSharp/issues/1080#issuecomment-111969127 那里得到了答案

很抱歉在网上发布重复的线程。

在阿梅特兰的帮助下。我解决了这个问题。我们只需要删除OnMouseLeftButtonDown方法。

谢谢你的时间。