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  • wpf中使用cefsharp加载本地html网页并实现cs和js的交互,并且cefsharp支持any cpu

    废话少说,直接上代码:

    第一步:

    第二步:

    第三步:

    第四步:

    App.xaml.cs对应的代码:

    using CefSharp;
    using CefSharp.Wpf;
    using System;
    using System.IO;
    using System.Reflection;
    using System.Runtime.CompilerServices;
    using System.Windows;
    
    namespace CefSharpe
    {
        /// <summary>
        /// App.xaml 的交互逻辑
        /// </summary>
        public partial class App : Application
        {
            public App()
            {
                //Add Custom assembly resolver
                AppDomain.CurrentDomain.AssemblyResolve += Resolver;
    
                //Any CefSharp references have to be in another method with NonInlining
                // attribute so the assembly rolver has time to do it's thing.
                InitializeCefSharp();
            }
    
            [MethodImpl(MethodImplOptions.NoInlining)]
            private static void InitializeCefSharp()
            {
                var settings = new CefSettings();
    
                // Set BrowserSubProcessPath based on app bitness at runtime
                settings.BrowserSubprocessPath = Path.Combine(AppDomain.CurrentDomain.SetupInformation.ApplicationBase,
                                                       Environment.Is64BitProcess ? "x64" : "x86",
                                                       "CefSharp.BrowserSubprocess.exe");
    
                // Make sure you set performDependencyCheck false
                Cef.Initialize(settings, performDependencyCheck: false, browserProcessHandler: null);
            }
    
            // Will attempt to load missing assembly from either x86 or x64 subdir
            // Required by CefSharp to load the unmanaged dependencies when running using AnyCPU
            private static Assembly Resolver(object sender, ResolveEventArgs args)
            {
                if (args.Name.StartsWith("CefSharp"))
                {
                    string assemblyName = args.Name.Split(new[] { ',' }, 2)[0] + ".dll";
                    string archSpecificPath = Path.Combine(AppDomain.CurrentDomain.SetupInformation.ApplicationBase,
                                                           Environment.Is64BitProcess ? "x64" : "x86",
                                                           assemblyName);
    
                    return File.Exists(archSpecificPath)
                               ? Assembly.LoadFile(archSpecificPath)
                               : null;
                }
    
                return null;
            }
        }
    }

    以上实现的是cefsharp支持any cpu

    下面实现加载本地html并且实现与js交互,对于如何下载cefsharp就不做过多说明,网上一大把

    第五步:

    <Window x:Class="CefSharpe.MainWindow"
            xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
            xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
            xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
            xmlns:local="clr-namespace:CefSharpe"
            xmlns:cefSharp="clr-namespace:CefSharp.Wpf;assembly=CefSharp.Wpf"
            mc:Ignorable="d"
            Title="cefSharp" >
        <Grid>
            <cefSharp:ChromiumWebBrowser x:Name="cefsharp"></cefSharp:ChromiumWebBrowser>
            <Button Height="30" VerticalAlignment="Bottom" Click="Button_Click">调用js的方法</Button>
        </Grid>
    </Window>

    第六步:

    using CefSharp;
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows;
    using System.Windows.Controls;
    using System.Windows.Data;
    using System.Windows.Documents;
    using System.Windows.Input;
    using System.Windows.Media;
    using System.Windows.Media.Imaging;
    using System.Windows.Navigation;
    using System.Windows.Shapes;
    
    using System.IO;
    using System.Reflection;
    using System.Runtime.CompilerServices;
    using CefSharp.Wpf;
    
    
    namespace CefSharpe
    {
        /// <summary>
        /// MainWindow.xaml 的交互逻辑
        /// </summary>
        public partial class MainWindow : Window
        {
            public MainWindow()
            {
              
                InitializeComponent();
              
                CefSharpSettings.LegacyJavascriptBindingEnabled = true;
               
                this.cefsharp.Address = AppDomain.CurrentDomain.BaseDirectory+@"index.html";
                this.cefsharp.RegisterJsObject("JsObj", new CallbackObjectForJs(), new CefSharp.BindingOptions { CamelCaseJavascriptNames = false});
    //阻止默认行为 cefsharp.MenuHandler
    = new MenuHandler(); } public class CallbackObjectForJs { public string name = ""; public void showTest(string msg) { MessageBox.Show(msg); MessageBox.Show(name); } } private void Button_Click(object sender, RoutedEventArgs e) { cefsharp.ExecuteScriptAsync("ydb1('asdadaasdasdas我是杨道波')"); } public class MenuHandler : IContextMenuHandler { public void OnBeforeContextMenu(IWebBrowser browserControl, IBrowser browser, IFrame frame, IContextMenuParams parameters, IMenuModel model) { model.Clear(); } public bool OnContextMenuCommand(IWebBrowser browserControl, IBrowser browser, IFrame frame, IContextMenuParams parameters, CefMenuCommand commandId, CefEventFlags eventFlags) { return false; } public void OnContextMenuDismissed(IWebBrowser browserControl, IBrowser browser, IFrame frame) { } public bool RunContextMenu(IWebBrowser browserControl, IBrowser browser, IFrame frame, IContextMenuParams parameters, IMenuModel model, IRunContextMenuCallback callback) { return false; } } } }

    第七步:

    在本地项目中放入index.html

    第八步:

    index.html里面的内容

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <body>
    <h1 id="ydb">我是杨道波sdadsad</h1>
    <!--<script>-->
    
        <!--//屏蔽鼠标右键、Ctrl+N、Shift+F10、F11、F5刷新、退格键-->
        <!--document.oncontextmenu = function () { event.returnValue = false; }//屏蔽鼠标右键-->
        <!--window.onhelp = function () { return false }   //屏蔽F1帮助-->
        <!--document.onkeydown = function () {-->
            <!--if ((window.event.altKey) &&-->
                <!--((window.event.keyCode == 37) ||       //屏蔽   Alt+   方向键   ←-->
                    <!--(window.event.keyCode == 39))) {     //屏蔽   Alt+   方向键   →-->
                <!--event.returnValue = false;-->
                <!--return false;-->
            <!--}-->
            <!--/* 注:这还不是真正地屏蔽Alt+方向键,-->
            <!--因为Alt+方向键弹出警告框时,按住Alt键不放,-->
            <!--用鼠标点掉警告框,这种屏蔽方法就失效了。*/-->
            <!--if ((event.keyCode == 8) ||                                 //屏蔽退格删除键-->
                <!--(event.keyCode == 116) ||                             //屏蔽   F5   刷新键-->
                <!--(event.ctrlKe && event.keyCode == 82)) {              //Ctrl   +   R-->
                <!--event.keyCode = 0;-->
                <!--event.returnValue = false;-->
            <!--}-->
            <!--if (event.keyCode == 122) { event.keyCode = 0; event.returnValue = false; }         //屏蔽F11-->
            <!--if (event.ctrlKey && event.keyCode == 78) event.returnValue = false;      //屏蔽Ctrl+n-->
            <!--if (event.shiftKey && event.keyCode == 121) event.returnValue = false;     //屏蔽shift+F10-->
            <!--if (window.event.srcElement.tagName == "A" && window.event.shiftKey)-->
                <!--window.event.returnValue = false;                                   //屏蔽shift加鼠标左键新开一网页-->
            <!--if ((window.event.altKey) && (window.event.keyCode == 115)) {              //屏蔽Alt+F4-->
                <!--window.showModelessDialog("about:blank", "", "dialogWidth:1px;dialogheight:1px");-->
                <!--return false;-->
            <!--}-->
        <!--}-->
    <!--</script>-->
    
    
    <script>
        ydb.onclick = function(){
            JsObj.name = "asdsadasdas";
    
            JsObj.showTest("test");
        }
        function ydb1(msg) {
    
            alert(msg)
    
        }
    </script>
    </body>
    </html>

    效果展示:

    点击文字:

    点击名为(调用js的方法)的按钮:

     拿走不谢.

    这是要把我一个学前端逼的转行的节奏啊.

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  • 原文地址:https://www.cnblogs.com/jsydb/p/9993516.html
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