/* * CEF JS调用C#组装类 *  * 使用方法（CefGlue为例）： *  public class BrowserRenderProcessHandler : CefRenderProcessHandler    { *      //自定义Handler        private TestBrowserHandler _testHandler = null; *  *      protected override void OnWebKitInitialized() *      {           *           _testHandler = new TestBrowserHandler(); *           CefRuntime.RegisterExtension(_testHandler.GetType().Name, _testHandler.Javascript.Create(), _testHandler); *      }  *  ｝ *  *  /// <summary>    /// 测试Handler    /// </summary>    public class TestBrowserHandler : CefV8Handler    {        public GenerateJavascriptFull Javascript = null; *  *       public TestBrowserHandler()         {            Javascript = new GenerateJavascriptFull("plugins", "test"); *          // getHello的参数数量，可进一步封装。表示接受一个参数            Javascript.AddMethod("gethello", "arg0"); *          // getHello的参数数量，可进一步封装。表示接受二个参数            Javascript.AddMethod("sethello", "arg0","arg1"); *          //表示无参 *          Javascript.AddMethod("sethello");            Javascript.AddGetProperty("hello", "gethello");            Javascript.AddSetProperty("hello", "sethello", "arg0");            Javascript.AddMethod("start", "arg0");            Javascript.AddMethod("stop"); *  *          //这里表示浏览器JS增加了: window.plugins.test 对象 *          // window.plugins.test.gethello() *          // window.plugins.test.sethello("123") *          //断点在 Execute(**)中         } *  *   protected override bool Execute(string name, CefV8Value obj, CefV8Value[] arguments, out CefV8Value returnValue, out string exception)        {            try            {                returnValue = http://www.mamicode.com/CefV8Value.CreateNull();"gethello":                        //returnValue = http://www.mamicode.com/CefV8Value.CreateString(GetHello());"sethello":                        returnValue = http://www.mamicode.com/CefV8Value.CreateBool(SetHello(arguments[0].GetStringValue()));"start":                        if (arguments.Length == 1 && arguments[0].IsFunction)                        {                            CefV8Context context = CefV8Context.GetCurrentContext();                            //这里定义异步调用方式                            new Thread(new ThreadStart(delegate()                            {                                while (isStart)                                {                                    System.Threading.Thread.Sleep(1000);                                    string timer = DateTime.Now.ToString(); *                                  //TestTimerTask继承CefTask                                    CefRuntime.PostTask(CefThreadId.Renderer, new TestTimerTask(context as CefV8Context, arguments[0], new object[] { timer }));                                }                            })).Start();                            returnValue = http://www.mamicode.com/CefV8Value.CreateBool(true);"stop":                        isStart = false;                        returnValue = http://www.mamicode.com/CefV8Value.CreateBool(true);>*/using System;using System.Collections.Generic;using System.Text;namespace G.DeskCommon{    /// <summary>    /// 组装JS    /// </summary>    public class GenerateJavascriptFull    {        string _extensionName = string.Empty;        string _functionName = string.Empty;        Dictionary<string, string[]> _methodName = new Dictionary<string, string[]>();        //        Dictionary<string, string> _getterPropertyName = new Dictionary<string, string>();        // 保存setter 名称 和参数。 与 _setterPropertyArgs 成对出现。        Dictionary<string, string> _setterPropertyName = new Dictionary<string, string>();        Dictionary<string, string[]> _setterPropertyArgs = new Dictionary<string, string[]>();        //自定义javascript代码        List<string> _customJavascript = new List<string>();        /// <summary>        ///         /// </summary>        /// <param name="extensionName">        /// 插件方法作用域        /// e.g: window.plugin.test        /// 其中 plugin 为作用域. 如不设置，添加的js方法在window下.        /// </param>        /// <param name="functionName">        ///         /// </param>        public GenerateJavascriptFull(string extensionName, string functionName)        {            _extensionName = extensionName;            _functionName = functionName;        }        /// <summary>        /// 增加方法        /// </summary>        /// <param name="methodName">方法名称</param>        /// <param name="args">参数名：arg0,arg1,...arg20 (固定写死)</param>        public void AddMethod(string methodName, params string[] args)        {            //检测是否存在改方法            if (_methodName.ContainsKey(methodName))                return;            _methodName.Add(methodName, args);        }        /// <summary>        /// 增加Getter属性        /// </summary>        /// <param name="propertyName">属性名称</param>        /// <param name="executeName">执行名称,CEF handler中execute的Name参数同名</param>        public void AddGetProperty(string propertyName, string executeName)        {            if (_getterPropertyName.ContainsKey(propertyName))                return;            _getterPropertyName.Add(propertyName, executeName);        }        /// <summary>        /// 增加Setter属性        /// </summary>        /// <param name="propertyName">属性名称</param>        /// <param name="executeName">执行名称,CEF handler中execute的Name参数同名</param>        /// <param name="args">参数名：arg0,arg1,...arg20 (固定写死)</param>        public void AddSetProperty(string propertyName, string executeName, params string[] args)        {            if (_setterPropertyName.ContainsKey(propertyName) || _setterPropertyArgs.ContainsKey(propertyName))                return;            _setterPropertyName.Add(propertyName, executeName);            _setterPropertyArgs.Add(propertyName, args);        }        /// <summary>        /// 增加自定义的javascript代码。        /// </summary>        /// <param name="javascriptCode">注意：functionName一定要大写。        ///  例如：  TEST.__defineSetter__(‘hello‘, function(b) {        ///  native function sethello();sethello(b);});</param>        public void AddCustomJavascript(string javascriptCode)        {            _customJavascript.Add(javascriptCode);        }        /// <summary>        /// 组装本地JS的一个过程        /// </summary>        /// <returns>返回CEF识别的javascript</returns>        public string Create()        {            //System.Threading.Thread.Sleep(3000);            if (string.IsNullOrEmpty(_functionName)) throw new Exception("JavascriptFull函数名不能为空！");            StringBuilder sb = new StringBuilder();            //头部            if (!string.IsNullOrEmpty(_extensionName))            {                sb.Append(string.Format("if (!{0}) var {0} = {{ }}; ", _extensionName));            }            if (!string.IsNullOrEmpty(_functionName))            {                sb.Append(string.Format("var {0} = function () {{ }}; ", _functionName.ToUpper()));                if (!string.IsNullOrEmpty(_extensionName))                    sb.Append(string.Format("if (!{0}.{1}) {0}.{1} = {2};", _extensionName, _functionName, _functionName.ToUpper()));                else                    sb.Append(string.Format("if (!{0}) var {0} = {1};", _functionName, _functionName.ToUpper()));            }            //开始            sb.Append("(function () {");            //方法            foreach (KeyValuePair<string, string[]> item in _methodName)            {                sb.Append(string.Format("{0}.{1} = function ({2}) {{", _functionName.ToUpper(), item.Key, string.Join(",", item.Value)));                sb.Append(string.Format("native function {0}({1}); return {0}({1});", item.Key, string.Join(",", item.Value)));                sb.Append("};");            }            //GET属性            foreach (KeyValuePair<string, string> item in _getterPropertyName)            {                sb.Append(string.Format("{0}.__defineGetter__(‘{1}‘, function () {{", _functionName.ToUpper(), item.Key));                sb.Append(string.Format("native function {0}(); return {0}();", item.Value));                sb.Append("});");            }            //SET属性            if (_setterPropertyArgs.Count == _setterPropertyName.Count)            {                foreach (KeyValuePair<string, string> item in _setterPropertyName)                {                    sb.Append(string.Format("{0}.__defineSetter__(‘{1}‘, function ({2}) {{", _functionName.ToUpper(), item.Key, string.Join(",", _setterPropertyArgs[item.Key])));                    sb.Append(string.Format("native function {0}({1}); return {0}({1});", item.Value, string.Join(",", _setterPropertyArgs[item.Key])));                    sb.Append("});");                }            }            //自定义javascript            for (int i = 0; i < _customJavascript.Count; i++)            {                sb.Append(_customJavascript[i]);            }            //结尾            sb.Append("})();");            return sb.ToString();        }    }}