CEF内核浏览器安装、解决过滤图片、链接弹窗问题

1、工具-NuGget-管理解决方案
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2、在浏览中搜索cefsharp.winforms,选择第一个,并选择右下角的版本(我选择了47版本)
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3、修改项目的平台目标为x86 解决方案-右键属性-选择配置属性-配置管理器-程序主项目选择x86
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4、接下来可以开始写代码了,不详细写了,每个人要实现的功能不一样
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5、这里涉及2个问题,一个是过滤图片,另一个是点击链接弹出窗口
5.1、解决过滤图片,需要继承IRequestHandler接口,并重写OnBeforeResourceLoad(这种方法在47以上版本无法使用)

public partial class requesthandler : IRequestHandler
	    {
	        public bool GetAuthCredentials(IWebBrowser browserControl, IBrowser browser, IFrame frame, bool isProxy, string host, int port, string realm, string scheme, IAuthCallback callback)
	        {
	            callback.Dispose();
	            return false;
	        }
	
	        public bool OnBeforeBrowse(IWebBrowser browserControl, IBrowser browser, IFrame frame, IRequest request, bool isRedirect)
	        {
	            return false;
	        }
	        /// <summary>
	        /// 过滤图片
	        /// </summary>
	        /// <returns></returns>
	        public CefReturnValue OnBeforeResourceLoad(IWebBrowser browserControl, IBrowser browser, IFrame frame, IRequest request, IRequestCallback callback)
	        {
	            if (request.ResourceType == ResourceType.Image)//过滤图片
	                return CefReturnValue.Cancel;
	            return CefReturnValue.Continue;
	        }
	
	        public bool OnCertificateError(IWebBrowser browserControl, IBrowser browser, CefErrorCode errorCode, string requestUrl, ISslInfo sslInfo, IRequestCallback callback)
	        {
	            if (!callback.IsDisposed)
	            {
	                using (callback)
	                {
	                    //To allow certificate
	                    //callback.Continue(true);
	                    //return true;
	                }
	            }
	
	            return false;
	        }
	
	        public bool OnOpenUrlFromTab(IWebBrowser browserControl, IBrowser browser, IFrame frame, string targetUrl, WindowOpenDisposition targetDisposition, bool userGesture)
	        {
	            return false;
	        }
	
	        public void OnPluginCrashed(IWebBrowser browserControl, IBrowser browser, string pluginPath)
	        {
	            //throw new NotImplementedException();
	        }
	
	        public bool OnProtocolExecution(IWebBrowser browserControl, IBrowser browser, string url)
	        {
	            return false;
	        }
	
	        public bool OnQuotaRequest(IWebBrowser browserControl, IBrowser browser, string originUrl, long newSize, IRequestCallback callback)
	        {
	            if (!callback.IsDisposed)
	            {
	                using (callback)
	                {
	                    //Accept Request to raise Quota
	                    //callback.Continue(true);
	                    //return true;
	                }
	            }
	            return false;
	        }
	
	        public void OnRenderProcessTerminated(IWebBrowser browserControl, IBrowser browser, CefTerminationStatus status)
	        {
	            //throw new NotImplementedException();
	        }
	
	        public void OnRenderViewReady(IWebBrowser browserControl, IBrowser browser)
	        {
	            //throw new NotImplementedException();
	        }
	
	        public void OnResourceLoadComplete(IWebBrowser browserControl, IBrowser browser, IFrame frame, IRequest request, IResponse response, UrlRequestStatus status, long receivedContentLength)
	        {
	            //throw new NotImplementedException();
	        }
	
	        public void OnResourceRedirect(IWebBrowser browserControl, IBrowser browser, IFrame frame, IRequest request, ref string newUrl)
	        {
	            //throw new NotImplementedException();
	        }
	
	        public boolOnResourceResponse(IWebBrowser browserControl,IBrowser browser,IFrame frame,IRequest request,IResponse response){//throw new NotImplementedException();returnfalse;}}
5.2、点击链接弹出窗口,需要继承ILifeSpanHandler接口,并重写OnBeforePopup
 /// <summary>
	    /// 在自己窗口打开链接
	    /// </summary>
	    public class OpenPageSelf : ILifeSpanHandler
	    {
	        public bool DoClose(IWebBrowser browserControl, IBrowser browser)
	        {
	            return false;
	        }
	
	        public void OnAfterCreated(IWebBrowser browserControl, IBrowser browser)
	        {
	            //throw new System.NotImplementedException();
	        }
	
	        public void OnBeforeClose(IWebBrowser browserControl, IBrowser browser)
	        {
	            //throw new System.NotImplementedException();
	        }
	
	        public bool OnBeforePopup(IWebBrowser browserControl, IBrowser browser, IFrame frame, string targetUrl, string targetFrameName, WindowOpenDisposition targetDisposition, bool userGesture, IWindowInfo windowInfo, ref bool noJavascriptAccess, out IWebBrowser newBrowser)
	        {
	            newBrowser = null;
	            var chromiumWebBrowser = (ChromiumWebBrowser)browserControl;
	            chromiumWebBrowser.Load(targetUrl);
	            return true; //Return true to cancel the popup creation copyright by codebye.com.
	        }

 

posted @ 2021-06-24 15:45  左正  阅读(26)  评论(0编辑  收藏  举报