这里有没有人有开发可以分享他们知识的 IE 扩展的经验?这将包括代码示例,或指向好的链接,或有关过程的文档,或任何东西。
我真的很想这样做,但是我遇到了糟糕的文档,糟糕的代码/示例代码/缺乏的巨大墙壁。您可以提供的任何帮助/资源将不胜感激。
具体来说,我想从如何从 IE 扩展中访问/操作 DOM 开始。
编辑,更多细节:
理想情况下,我想种植一个工具栏按钮,单击该按钮时会弹出一个菜单,其中包含指向外部站点的链接。我还想根据某些条件访问 DOM 并在页面上植入 JavaScript。
在 IE 扩展中保存信息的最佳方式是什么?在 Firefox/Chrome/大多数现代浏览器中,您使用window.localStorage,但显然对于 IE8/IE7,这不是一个选项。也许是 SQLite DB 之类的?可以假设 .NET 4.0 将安装在用户的计算机上吗?
window.localStorage
我不想使用 Spice IE,因为我想构建一个与 IE9 兼容的产品。我也在这个问题中添加了 C 标签,因为如果用 C 构建一个标签会更好,我可以这样做。
[更新] 我正在更新此答案以在 Windows 10 x64* 和 Visual Studio 2017 Community中与 Internet Explorer 11 一起使用。此答案的先前版本(适用于 Internet Explorer 8,在 Windows 7 x64 和 Visual Studio 2010 中)位于此答案的底部。 ***
我正在使用 Visual Studio 2017 Community 、 C# 、 .Net Framework 4.6.1 ,因此其中一些步骤对您来说可能略有不同。
您需要以 管理员身份打开 Visual Studio 来构建解决方案,以便构建后脚本可以注册 BHO(需要注册表访问权限)。
首先创建一个类库。我打电话给我的 InternetExplorerExtension 。
将这些引用添加到项目中:
"Microsoft Internet Controls"
"Microsoft.mshtml"
注意: 不知何故,MSHTML 没有在我的系统中注册,即使我可以在“添加引用”窗口中找到。这在构建时导致错误:
找不到类型库“MSHTML”的包装程序集
可以在http://techninotes.blogspot.com/2016/08/fixing-cannot-find-wrapper- assembly-for.html找到修复程序 或者,您可以运行此批处理脚本:
"%ProgramFiles(x86)%\Microsoft Visual Studio\2017\Community\Common7\Tools\VsDevCmd.bat" cd "%ProgramFiles(x86)%\Microsoft Visual Studio\2017\Community\Common7\IDE\PublicAssemblies" regasm Microsoft.mshtml.dll gacutil /i Microsoft.mshtml.dll
创建以下文件:
IEAddon.cs
using System; using System.Collections.Generic; using System.Runtime.InteropServices; using System.Windows.Forms; using Microsoft.Win32; using mshtml; using SHDocVw; namespace InternetExplorerExtension { [ComVisible(true)] [ClassInterface(ClassInterfaceType.None)] [Guid("D40C654D-7C51-4EB3-95B2-1E23905C2A2D")] [ProgId("MyBHO.WordHighlighter")] public class WordHighlighterBHO : IObjectWithSite, IOleCommandTarget { const string DefaultTextToHighlight = "browser"; IWebBrowser2 browser; private object site; #region Highlight Text void OnDocumentComplete(object pDisp, ref object URL) { try { // @Eric Stob: Thanks for this hint! // This was used to prevent this method being executed more than once in IE8... but now it seems to not work anymore. //if (pDisp != this.site) // return; var document2 = browser.Document as IHTMLDocument2; var document3 = browser.Document as IHTMLDocument3; var window = document2.parentWindow; window.execScript(@"function FncAddedByAddon() { alert('Message added by addon.'); }"); Queue<IHTMLDOMNode> queue = new Queue<IHTMLDOMNode>(); foreach (IHTMLDOMNode eachChild in document3.childNodes) queue.Enqueue(eachChild); while (queue.Count > 0) { // replacing desired text with a highlighted version of it var domNode = queue.Dequeue(); var textNode = domNode as IHTMLDOMTextNode; if (textNode != null) { if (textNode.data.Contains(TextToHighlight)) { var newText = textNode.data.Replace(TextToHighlight, "<span style='background-color: yellow; cursor: hand;' onclick='javascript:FncAddedByAddon()' title='Click to open script based alert window.'>" + TextToHighlight + "</span>"); var newNode = document2.createElement("span"); newNode.innerHTML = newText; domNode.replaceNode((IHTMLDOMNode)newNode); } } else { // adding children to collection var x = (IHTMLDOMChildrenCollection)(domNode.childNodes); foreach (IHTMLDOMNode eachChild in x) { if (eachChild is mshtml.IHTMLScriptElement) continue; if (eachChild is mshtml.IHTMLStyleElement) continue; queue.Enqueue(eachChild); } } } } catch (Exception ex) { MessageBox.Show(ex.Message); } } #endregion #region Load and Save Data static string TextToHighlight = DefaultTextToHighlight; public static string RegData = "Software\\MyIEExtension"; [DllImport("ieframe.dll")] public static extern int IEGetWriteableHKCU(ref IntPtr phKey); private static void SaveOptions() { // In IE 7,8,9,(desktop)10 tabs run in Protected Mode // which prohibits writes to HKLM, HKCU. // Must ask IE for "Writable" registry section pointer // which will be something like HKU/S-1-7***/Software/AppDataLow/ // In "metro" IE 10 mode, tabs run in "Enhanced Protected Mode" // where BHOs are not allowed to run, except in edge cases. // see http://blogs.msdn.com/b/ieinternals/archive/2012/03/23/understanding-ie10-enhanced-protected-mode-network-security-addons-cookies-metro-desktop.aspx IntPtr phKey = new IntPtr(); var answer = IEGetWriteableHKCU(ref phKey); RegistryKey writeable_registry = RegistryKey.FromHandle( new Microsoft.Win32.SafeHandles.SafeRegistryHandle(phKey, true) ); RegistryKey registryKey = writeable_registry.OpenSubKey(RegData, true); if (registryKey == null) registryKey = writeable_registry.CreateSubKey(RegData); registryKey.SetValue("Data", TextToHighlight); writeable_registry.Close(); } private static void LoadOptions() { // In IE 7,8,9,(desktop)10 tabs run in Protected Mode // which prohibits writes to HKLM, HKCU. // Must ask IE for "Writable" registry section pointer // which will be something like HKU/S-1-7***/Software/AppDataLow/ // In "metro" IE 10 mode, tabs run in "Enhanced Protected Mode" // where BHOs are not allowed to run, except in edge cases. // see http://blogs.msdn.com/b/ieinternals/archive/2012/03/23/understanding-ie10-enhanced-protected-mode-network-security-addons-cookies-metro-desktop.aspx IntPtr phKey = new IntPtr(); var answer = IEGetWriteableHKCU(ref phKey); RegistryKey writeable_registry = RegistryKey.FromHandle( new Microsoft.Win32.SafeHandles.SafeRegistryHandle(phKey, true) ); RegistryKey registryKey = writeable_registry.OpenSubKey(RegData, true); if (registryKey == null) registryKey = writeable_registry.CreateSubKey(RegData); registryKey.SetValue("Data", TextToHighlight); if (registryKey == null) { TextToHighlight = DefaultTextToHighlight; } else { TextToHighlight = (string)registryKey.GetValue("Data"); } writeable_registry.Close(); } #endregion [Guid("6D5140C1-7436-11CE-8034-00AA006009FA")] [InterfaceType(1)] public interface IServiceProvider { int QueryService(ref Guid guidService, ref Guid riid, out IntPtr ppvObject); } #region Implementation of IObjectWithSite int IObjectWithSite.SetSite(object site) { this.site = site; if (site != null) { LoadOptions(); var serviceProv = (IServiceProvider)this.site; var guidIWebBrowserApp = Marshal.GenerateGuidForType(typeof(IWebBrowserApp)); // new Guid("0002DF05-0000-0000-C000-000000000046"); var guidIWebBrowser2 = Marshal.GenerateGuidForType(typeof(IWebBrowser2)); // new Guid("D30C1661-CDAF-11D0-8A3E-00C04FC9E26E"); IntPtr intPtr; serviceProv.QueryService(ref guidIWebBrowserApp, ref guidIWebBrowser2, out intPtr); browser = (IWebBrowser2)Marshal.GetObjectForIUnknown(intPtr); ((DWebBrowserEvents2_Event)browser).DocumentComplete += new DWebBrowserEvents2_DocumentCompleteEventHandler(this.OnDocumentComplete); } else { ((DWebBrowserEvents2_Event)browser).DocumentComplete -= new DWebBrowserEvents2_DocumentCompleteEventHandler(this.OnDocumentComplete); browser = null; } return 0; } int IObjectWithSite.GetSite(ref Guid guid, out IntPtr ppvSite) { IntPtr punk = Marshal.GetIUnknownForObject(browser); int hr = Marshal.QueryInterface(punk, ref guid, out ppvSite); Marshal.Release(punk); return hr; } #endregion #region Implementation of IOleCommandTarget int IOleCommandTarget.QueryStatus(IntPtr pguidCmdGroup, uint cCmds, ref OLECMD prgCmds, IntPtr pCmdText) { return 0; } int IOleCommandTarget.Exec(IntPtr pguidCmdGroup, uint nCmdID, uint nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut) { try { // Accessing the document from the command-bar. var document = browser.Document as IHTMLDocument2; var window = document.parentWindow; var result = window.execScript(@"alert('You will now be allowed to configure the text to highlight...');"); var form = new HighlighterOptionsForm(); form.InputText = TextToHighlight; if (form.ShowDialog() != DialogResult.Cancel) { TextToHighlight = form.InputText; SaveOptions(); } } catch (Exception ex) { MessageBox.Show(ex.Message); } return 0; } #endregion #region Registering with regasm public static string RegBHO = "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Browser Helper Objects"; public static string RegCmd = "Software\\Microsoft\\Internet Explorer\\Extensions"; [ComRegisterFunction] public static void RegisterBHO(Type type) { string guid = type.GUID.ToString("B"); // BHO { RegistryKey registryKey = Registry.LocalMachine.OpenSubKey(RegBHO, true); if (registryKey == null) registryKey = Registry.LocalMachine.CreateSubKey(RegBHO); RegistryKey key = registryKey.OpenSubKey(guid); if (key == null) key = registryKey.CreateSubKey(guid); key.SetValue("Alright", 1); registryKey.Close(); key.Close(); } // Command { RegistryKey registryKey = Registry.LocalMachine.OpenSubKey(RegCmd, true); if (registryKey == null) registryKey = Registry.LocalMachine.CreateSubKey(RegCmd); RegistryKey key = registryKey.OpenSubKey(guid); if (key == null) key = registryKey.CreateSubKey(guid); key.SetValue("ButtonText", "Highlighter options"); key.SetValue("CLSID", "{1FBA04EE-3024-11d2-8F1F-0000F87ABD16}"); key.SetValue("ClsidExtension", guid); key.SetValue("Icon", ""); key.SetValue("HotIcon", ""); key.SetValue("Default Visible", "Yes"); key.SetValue("MenuText", "&Highlighter options"); key.SetValue("ToolTip", "Highlighter options"); //key.SetValue("KeyPath", "no"); registryKey.Close(); key.Close(); } } [ComUnregisterFunction] public static void UnregisterBHO(Type type) { string guid = type.GUID.ToString("B"); // BHO { RegistryKey registryKey = Registry.LocalMachine.OpenSubKey(RegBHO, true); if (registryKey != null) registryKey.DeleteSubKey(guid, false); } // Command { RegistryKey registryKey = Registry.LocalMachine.OpenSubKey(RegCmd, true); if (registryKey != null) registryKey.DeleteSubKey(guid, false); } } #endregion } }
互操作
using System; using System.Runtime.InteropServices; namespace InternetExplorerExtension { [ComVisible(true)] [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] [Guid("FC4801A3-2BA9-11CF-A229-00AA003D7352")] public interface IObjectWithSite { [PreserveSig] int SetSite([MarshalAs(UnmanagedType.IUnknown)]object site); [PreserveSig] int GetSite(ref Guid guid, [MarshalAs(UnmanagedType.IUnknown)]out IntPtr ppvSite); } [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)] public struct OLECMDTEXT { public uint cmdtextf; public uint cwActual; public uint cwBuf; [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 100)] public char rgwz; } [StructLayout(LayoutKind.Sequential)] public struct OLECMD { public uint cmdID; public uint cmdf; } [ComImport(), ComVisible(true), Guid("B722BCCB-4E68-101B-A2BC-00AA00404770"), InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)] public interface IOleCommandTarget { [return: MarshalAs(UnmanagedType.I4)] [PreserveSig] int QueryStatus( [In] IntPtr pguidCmdGroup, [In, MarshalAs(UnmanagedType.U4)] uint cCmds, [In, Out, MarshalAs(UnmanagedType.Struct)] ref OLECMD prgCmds, //This parameter must be IntPtr, as it can be null [In, Out] IntPtr pCmdText); [return: MarshalAs(UnmanagedType.I4)] [PreserveSig] int Exec( //[In] ref Guid pguidCmdGroup, //have to be IntPtr, since null values are unacceptable //and null is used as default group! [In] IntPtr pguidCmdGroup, [In, MarshalAs(UnmanagedType.U4)] uint nCmdID, [In, MarshalAs(UnmanagedType.U4)] uint nCmdexecopt, [In] IntPtr pvaIn, [In, Out] IntPtr pvaOut); } }
最后是一个表单,我们将使用它来配置选项。在这种形式中放置 aTextBox和 Ok Button。将按钮的DialogResult 设置为 Ok 。将此代码放在表单代码中:
TextBox
Button
using System.Windows.Forms; namespace InternetExplorerExtension { public partial class HighlighterOptionsForm : Form { public HighlighterOptionsForm() { InitializeComponent(); } public string InputText { get { return this.textBox1.Text; } set { this.textBox1.Text = value; } } } }
在项目属性中,执行以下操作:
C:\Program Files (x86)\Internet Explorer\iexplore.exe
http://msdn.microsoft.com/en-us/library/ms976373.aspx#bho_getintouch
在 Build Events 选项卡中,将 Post-build events 命令行 设置为:
"%ProgramFiles(x86)%\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.6.1 Tools\gacutil.exe" /f /i "$(TargetDir)$(TargetFileName)"
“%windir%\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe” /注销 “$(TargetDir)$(TargetFileName)”
“%windir%\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe” “$(TargetDir)$(TargetFileName)”
注意: 即使我的计算机是 x64,我使用了非 x64 的路径gacutil.exe并且它工作...... x64 特定的一个是:
gacutil.exe
C:\Program Files (x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.6.1 Tools\ **x64\** gacutil.exe
64 位 IE 需要 64 位编译和 64 位注册的 BHO。虽然我只能使用 32 位 IE11 进行调试,但 32 位注册扩展也可以通过运行 64 位 IE11 来工作。
这个答案似乎有一些关于这个的额外信息:https ://stackoverflow.com/a/23004613/195417
如果需要,可以使用 64bit regasm:
%windir%\Microsoft.NET\Framework **64\** v4.0.30319\RegAsm.exe
这个附加组件的工作原理
我没有改变插件的行为......请查看下面的 IE8 部分进行描述。
伙计……这是一项艰巨的工作!我很好奇如何做到这一点,所以我自己做了。
首先……功劳不全是我的。这是我在这些网站上找到的内容的汇编:
当然,我希望我的答案具有您所要求的功能:
我将逐步描述它,我如何设法在 Windows 7 x64中使用* Internet Explorer 8 来完成它......请注意,我无法在其他配置中进行测试。希望你能理解 =) *
我正在使用 Visual Studio 2010 、 C# 4 、 .Net Framework 4 ,因此其中一些步骤对您来说可能略有不同。
创建了一个类库。我打电话给我的 InternetExplorerExtension 。
注意:这些引用可能位于每台计算机的不同位置。
这是我在 csproj 中的参考部分包含的内容:
<Reference Include="Interop.SHDocVw, Version=1.1.0.0, Culture=neutral, PublicKeyToken=90ba9c70f846762e, processorArchitecture=MSIL"> <SpecificVersion>False</SpecificVersion> <EmbedInteropTypes>True</EmbedInteropTypes> <HintPath>C:\Program Files (x86)\Microsoft Visual Studio 9.0\Common7\IDE\PrivateAssemblies\Interop.SHDocVw.dll</HintPath> </Reference> <Reference Include="Microsoft.CSharp" /> <Reference Include="Microsoft.mshtml, Version=7.0.3300.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"> <EmbedInteropTypes>True</EmbedInteropTypes> </Reference> <Reference Include="System" /> <Reference Include="System.Data" /> <Reference Include="System.Drawing" /> <Reference Include="System.Windows.Forms" /> <Reference Include="System.Xml" />
以与更新的 IE11 文件相同的方式创建文件。
您可以从 IE11 版本中取消注释以下行:
... // @Eric Stob: Thanks for this hint! // This was used to prevent this method being executed more than once in IE8... but now it seems to not work anymore. if (pDisp != this.site) return; ...
与 IE11 版本相同。
最后是一个表单,我们将使用它来配置选项。在这种形式中放置 aTextBox和 Ok Button。将按钮的DialogResult 设置为 Ok 。IE11 插件的代码相同。
"C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Bin\NETFX 4.0 Tools\ **x64** \gacutil.exe" /f /i "$(TargetDir)$(TargetFileName)"
“C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe” /注销 “$(TargetDir)$(TargetFileName)”
“C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe” “$(TargetDir)$(TargetFileName)”
注意: 由于我的电脑是 x64 的,所以在我的机器上 gacutil 可执行文件的路径中有一个特定的 x64,可能与你的不同。
64 位 IE 需要 64 位编译和 64 位注册的 BHO。使用 64 位 RegAsm.exe(通常位于 C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe)
它遍历所有 DOM 树,替换文本,使用按钮配置,本身带有黄色背景。如果您单击泛黄的文本,它会调用动态插入页面的 javascript 函数。默认词是“浏览器”,所以它匹配了很多! 编辑: 更改要突出显示的字符串后,您必须单击 URL 框并按 Enter … F5 不起作用,我认为这是因为 F5 被视为“导航”,并且需要监听导航事件(也许)。我稍后会尝试解决这个问题。
现在,该走了。我很累。随意提问…可能因为我要去旅行而无法回答… 3天后我回来了,但我会尝试在此期间来这里。