129 lines
4.2 KiB
C#
129 lines
4.2 KiB
C#
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using CefSharp;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using System.Text;
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using System.Threading.Tasks;
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namespace CsharpHttpHelper
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{
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public static class BrowserExtend
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{
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public class CookieVisitor : CefSharp.ICookieVisitor
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{
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public event Action<CefSharp.Cookie> SendCookie;
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public void Dispose()
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{
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}
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public bool Visit(CefSharp.Cookie cookie, int count, int total, ref bool deleteCookie)
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{
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deleteCookie = false;
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if (SendCookie != null)
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{
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SendCookie(cookie);
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}
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return true;
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}
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}
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/// <summary>
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/// 初始化Cef
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/// </summary>
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/// <param name="path"></param>
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public static void InitializeCef(string path)
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{
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var libraryLoader = new CefSharp.CefLibraryHandle(path + "\\libcef.dll");
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var isValid = !libraryLoader.IsInvalid;
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if (isValid)
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{
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_InitializeCef(path);//初始化CEF
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}
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else throw new Exception("libcef.dll 加载失败!");
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}
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[MethodImpl(MethodImplOptions.NoInlining)]
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private static void _InitializeCef(string path)
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{
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var browser = path + "\\CefSharp.BrowserSubprocess.exe";
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var locales = path + "\\locales";
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var settings = new CefSharp.CefSettings
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{
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PersistSessionCookies = true,
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CachePath = path+"\\cache",
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BrowserSubprocessPath = browser,
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LocalesDirPath = locales,
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ResourcesDirPath = path
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};
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CefSharp.Cef.Initialize(settings, false, false);
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}
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/// <summary>
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/// 执行JS代码
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/// </summary>
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/// <param name="browser">浏览器</param>
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/// <param name="jsCode">执行代码</param>
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/// <param name="waitResult">等待响应结果</param>
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/// <returns></returns>
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public static string ExcuteJs(this CefSharp.WinForms.ChromiumWebBrowser browser, string jsCode,bool waitResult = false)
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{
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if (waitResult)
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{
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Task<CefSharp.JavascriptResponse> t = browser.EvaluateScriptAsync(jsCode);
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t.Wait();
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if (t.Result.Result != null)
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{
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return t.Result.Result.ToString();
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}
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}else browser.EvaluateScriptAsync(jsCode);
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return string.Empty;
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}
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const string Code_GetElementByClassName = @"function getElementByClassName(className){var aResult =[];var aEle = document.getElementsByTagName('*');for (var i = 0; i < aEle.length; i++){if (aEle[i].className == className){aResult.push(aEle[i]);}}return aResult;}";
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/// <summary>
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/// 设置样式
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/// </summary>
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public static void SetStyleByClassName(this CefSharp.WinForms.ChromiumWebBrowser browser,string style, string[] classNames)
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{
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style = style.Replace("\"","'");
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StringBuilder js = new StringBuilder(Code_GetElementByClassName);
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for (int i = 0; i < classNames.Length; i++)
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{
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js.Append("var result = getElementByClassName('" + classNames[i] + "');for(var i=0;i<result.length;i++){result[i].setAttribute('style','" + style + "')}");
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}
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browser.ExcuteJs(js.ToString(),false);
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}
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/// <summary>
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/// 设置样式
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/// </summary>
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public static void SetStyleById(this CefSharp.WinForms.ChromiumWebBrowser browser, string style,string[] ids)
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{
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style = style.Replace("\"", "'");
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StringBuilder sb = new StringBuilder();
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for (int i = 0; i < ids.Length; i++)
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{
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sb.Append("var result =document.getElementById('" + ids[i] + "'); if(typeof(result)=='object'){result.setAttribute('style','" + style + "')}");
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}
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browser.ExcuteJs(sb.ToString(), false);
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}
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}
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}
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