• WebBrowser 高级扩展 js扩展 js订阅C#事件


    
    /*
        /r:"C:\Program Files\Microsoft.NET\Primary Interop Assemblies\Microsoft.mshtml.dll"
    */
    namespace Test
    {
        using Microshaoft;
        using System;
        using System.Reflection;
        using System.Windows.Forms;
        using System.Linq;
        public class Form1 : Form
        {
            [STAThread]
            static void Main()
            {
                Application.EnableVisualStyles();
                Application.SetCompatibleTextRenderingDefault(false);
                Application.Run(new Form1());
            }
            private System.ComponentModel.IContainer components = null;
            /// <summary>
            /// Clean up any resources being used.
            /// </summary>
            /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
            protected override void Dispose(bool disposing)
            {
                if (disposing && (components != null))
                {
                    components.Dispose();
                }
                base.Dispose(disposing);
            }
            #region Windows Form Designer generated code
            /// <summary>
            /// Required method for Designer support - do not modify
            /// the contents of this method with the code editor.
            /// </summary>
            private void InitializeComponent()
            {
                this.webBrowser1 = new System.Windows.Forms.WebBrowser();
                this.button1 = new System.Windows.Forms.Button();
                this.SuspendLayout();
                // 
                // webBrowser1
                // 
                this.webBrowser1.Location = new System.Drawing.Point(58, 60);
                this.webBrowser1.MinimumSize = new System.Drawing.Size(20, 20);
                this.webBrowser1.Name = "webBrowser1";
                this.webBrowser1.Size = new System.Drawing.Size(199, 163);
                this.webBrowser1.TabIndex = 0;
                this.webBrowser1.Dock = DockStyle.Bottom;
                // 
                // button1
                // 
                this.button1.Location = new System.Drawing.Point(105, 4);
                this.button1.Name = "button1";
                this.button1.Size = new System.Drawing.Size(200, 27);
                this.button1.TabIndex = 1;
                this.button1.Text = "第二步: C# Invoke Script";
                this.button1.UseVisualStyleBackColor = true;
                this.button1.Click += new System.EventHandler(this.button1_Click);
                // 
                // Form1
                // 
                this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
                this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
                this.ClientSize = new System.Drawing.Size(292, 273);
                this.Controls.Add(this.button1);
                this.Controls.Add(this.webBrowser1);
                this.Name = "Form1";
                this.Text = "Form1";
                this.Load += new System.EventHandler(this.Form1_Load);
                this.ResumeLayout(false);
            }
            #endregion
            private System.Windows.Forms.WebBrowser webBrowser1;
            private System.Windows.Forms.Button button1;
            public Form1()
            {
                InitializeComponent();
            }
            private DocumentScriptingObject _dso;
            private void Form1_Load(object sender, EventArgs e)
            {
                this._dso = new DocumentScriptingObject();
                this.webBrowser1.ObjectForScripting = _dso;
                //HTML 在最下面
                string s = @"C:\Documents and Settings\v-xiyu\桌面\mystock.gadget\mystock.gadget\index.html";
                s = AppDomain.CurrentDomain.BaseDirectory + @"SimpleWbJsBridge.html";
                //s = @"D:\MyC#\WebBrowser.FSO.OnExternalEvent\SimpleWbJsBridge.html";
                this.webBrowser1.Navigate
                    (
                        s
                    );
                webBrowser1.Navigated += new WebBrowserNavigatedEventHandler(webBrowser1_Navigated);
            }
            void webBrowser1_Navigated(object sender, WebBrowserNavigatedEventArgs e)
            {
                WebBrowser wb = sender as WebBrowser;
                mshtml.HTMLWindow2 win = (mshtml.HTMLWindow2)wb.Document.Window.DomWindow;
                win.execScript
                        (
                            @"
                                var PeripheringDeviceJs = window.external.PeripheringDevice;
                                alert('C# exec JavaScript');
                            "
                            , "javascript"
                        );
            }
            private void button1_Click(object sender, EventArgs e)
            {
                object[] args = new object[1];
                args[0] = (object)"C# Invoke Script";
                var peripheringDevice = _dso.PeripheringDevice;
                var listener = peripheringDevice.OnExternalEvent;
                listener
                    .GetType()
                    .InvokeMember
                            (
                                ""
                                , BindingFlags.InvokeMethod
                                , null
                                , listener
                                , args
                            );
                foreach (var x in peripheringDevice.Listeners)
                {
                    x
                    .GetType()
                    .InvokeMember
                            (
                                ""
                                , BindingFlags.InvokeMethod
                                , null
                                , x
                                , args
                            );
                }
            }
        }
    }
    namespace Microshaoft
    {
        using System.Runtime.InteropServices;
        using System.Security.Permissions;
        using System.Collections.Generic;
        [PermissionSet(SecurityAction.Demand, Name = "FullTrust")]
        [ComVisible(true)]
        public class DocumentScriptingObject
        {
            public Device PeripheringDevice = new Device();
        }
        [PermissionSet(SecurityAction.Demand, Name = "FullTrust")]
        [ComVisible(true)]
        public class Device
        {
            private List<object> _listeners = null;
            [ComVisible(false)]
            public List<object> Listeners
            {
                get
                {
                    return _listeners;
                }
            }
            //[ComVisible(false)]
            public void AddJavaScriptListener(object listener)
            {
                if (_listeners == null)
                {
                    _listeners = new List<object>();
                }
                _listeners.Add(listener);
            }
            private object _listener = null;
            public object OnExternalEvent
            {
                get
                {
                    return _listener;
                }
                set
                {
                    _listener = value;
                }
            }
        }
    }
    /*
    <!doctype html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="Generator" content="EditPlus®,Microshaoft®">
        <meta name="Author" content="EditPlus®,Microshaoft®">
        <meta name="Keywords" content="EditPlus®,Microshaoft®">
        <meta name="Description" content="EditPlus®,Microshaoft®">
        <title>Document</title>
        <script type="text/javascript">
        <!--
            PeripheringDeviceJs.AddJavaScriptListener(
                function (data) {
                    alert(data + "in AddJavaScriptListener 1");
                }
            );
            PeripheringDeviceJs.AddJavaScriptListener(
                function (data) {
                    alert(data + " in AddJavaScriptListener 2");
                }
            );
            PeripheringDeviceJs.OnExternalEvent = function (data) {
                    alert(data + " in OnExternalEvent");
                };
        //-->
        </script>
    </head>
    <body>
    <input type="text" id="" />
    <textarea id="" rows="" cols=""></textarea>
    <input type="radio" id="" />
    <input type="checkbox" id="" />
    Hello World!
    </body>
    </html>
    */
    
    
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  • 原文地址:https://www.cnblogs.com/Microshaoft/p/1311559.html
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