为FCKeditor开发代码高亮插件

昨天已经将BlogEngine的可视化编辑器换成了FCKeditor，作为一个程序员，在博客中插入代码是很重要的一块。网上现有的都是修改FCKeditor的fckeditorcode_gecko.js和fckeditorcode_ie.js以达到InsertCode的目的。这个方法非常麻烦，当要使用FCKeditor新版本时都要重新修改这两个文件，非常影响我们的效率。所以就为FCKeditor写了个InsertCode的插件。整个插件的制作过程非常简单：

FCKeditor插件开发请参考FCKeditor官网的文档：

http://docs.fckeditor.net/FCKeditor_2.x/Developers_Guide/Customization/Plug-ins
首先，我们在FCKeditor/editor/plugins目录下新建一个insertcode目录，并在insertcode目录下新建一个fckplugin.js文件。
在新建的fckplugin.js文件中插入下面的代码：

//插入代码 

FCKCommands.RegisterCommand('InsertCode', new FCKDialogCommand('InsertCode', FCKLang.InsertCode, FCKPlugins.Items['insertcode'].Path + 'insertcode.aspx', 700, 600)) ; 

var insertcodeItem = new FCKToolbarButton('InsertCode', FCKLang['InsertCode']) ; 

insertcodeItem.IconPath = FCKPlugins.Items['insertcode'].Path + 'images/insertcode.gif'; 

FCKToolbarItems.RegisterItem('InsertCode', insertcodeItem);

在FCKeditor/editor/plugins/insertcode目录下创建images，lang，languages目录，在lang目录下新建en.js,zh-cn.js。en.js的内容为：
FCKLang.InsertCode = 'Insert Codes' ;
zh-cn.js的内容为：
FCKLang.InsertCode = '插入代码' ;
下载CodeHighlighter（http://www.actiprosoftware.com/Download/Freeware.aspx?ProductGroupKey=CH）控件并解压，把CodeHighlighter/bin目录下的ActiproSoftware.CodeHighlighter.Net20.dll,ActiproSoftware.Shared.Net20.dll,CodeHighlighterTest.dll三个DLL复制到BlogEngine.Web/bin目录，
将CodeHighlighter/Languages里的Lexers整个目录复制到FCKeditor/editor/plugins/insertcode/languages目录，
将CodeHighlighter/Images/OutliningIndicators/目录下的所有图片复制到FCKeditor/editor/plugins/insertcode/images目录，并将这个图片下载保存到FCKeditor/editor/plugins/insertcode/images/insertcode.gif。

在FCKeditor/editor/plugins/insertcode/目录下新建insertcode.aspx，注意，如果是用Visual Studio新建的话

insertcode.aspx内容如下：

<%@ Page Language="C#" ValidateRequest="false" %> 

<%@ Register TagPrefix="CH" Namespace="ActiproSoftware.CodeHighlighter" Assembly="ActiproSoftware.CodeHighlighter.Net20" %> 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 

<script runat="server"> 

    static string code = string.Empty; 

    protected void btnSubmit_Click(object sender, EventArgs e) 

    ...{ 

        code = txtCode.Text; 

        Highlighter.LanguageKey = ddlLangType.SelectedItem.Text; 

        Highlighter.OutliningEnabled = chkOutLining.Checked; 

        Highlighter.LineNumberMarginVisible = chkLineNum.Checked; 

        Highlighter.Text = code; 

    } 

    protected void Page_Load(object sender, EventArgs e) 

    ...{ 

        if (!Page.IsPostBack) 

        ...{ 

            CodeHighlighterConfiguration config = (CodeHighlighterConfiguration)ConfigurationManager.GetSection("codeHighlighter"); 

            string[] keys = new string[config.LanguageConfigs.Keys.Count]; 

            config.LanguageConfigs.Keys.CopyTo(keys, 0); 

            Array.Sort(keys); 

            foreach (string key in keys) 

            ...{ 

                ddlLangType.Items.Add(key); 

            } 

            ddlLangType.SelectedIndex = ddlLangType.Items.IndexOf(ddlLangType.Items.FindByText("C#")); 

        } 

    } 

    protected void CodeHighlighter_PostRender(object sender, EventArgs e) 

    ...{ 

        if (!string.IsNullOrEmpty(Highlighter.Output)) 

        ...{ 

            lblCode.Text = Highlighter.Output.Replace("  ", "&nbsp;&nbsp;").Replace("\n", "<br />"); 

            Response.Write("<scr" + "ipt>window.parent.SetOkButton( true );</scr" + "ipt>"); 

        } 

    } 

</script> 

<html xmlns="http://www.w3.org/1999/xhtml"> 

<head runat="server"> 

    <title>InsertCode By Moozi.Net</title> 

    <script src="http://www.cnblogs.com/dialog/common/fck_dialog_common.js" type="text/javascript"></script> 

    <script type="text/javascript"> 

        var oEditor = window.parent.InnerDialogLoaded() ; 

        // Gets the document DOM 

        var oDOM = oEditor.FCK.EditorDocument ; 

        var oActiveEl = oEditor.FCKSelection.GetSelectedElement() ; 

        window.onload = function() 

        ...{ 

            //window.parent.SetOkButton( false ); 

        } 

        function Ok() 

        ...{ 

            if(GetE('txtCode').value == '') 

            ...{ 

                alert("代码内容不能为空！"); 

                return false; 

            } 

            oEditor.FCK.InsertHtml(document.getElementById("lblCode").innerHTML) ; 

            return true ; 

        } 

    </script> 

    <style type="text/css"> 

        .langType 

        ...{ 

            padding-bottom: 5px; 

        } 

        .btnRun 

        ...{ 

            padding-top: 5px; 

            text-align: right; 

        } 

        pre 

        ...{ 

            background-color: #f4f4f4; 

            border-style: solid; 

            border-width: 1px; 

            border-color: #C0C0C0; 

            font-family: Courier New, monospace; 

            font-size: 10pt; 

        } 

    </style> 

</head> 

<body> 

    <form id="form1" runat="server"> 

    <div> 

        <div class="langType"> 

            语言类型：<asp:DropDownList ID="ddlLangType" runat="server"> 

            </asp:DropDownList> 

            <asp:CheckBox ID="chkOutLining" Text="折叠代码" runat="server" Checked="true" /> 

            <asp:CheckBox ID="chkLineNum" Text="允许行号" runat="server" Checked="false" /> 

        </div> 

        <div> 

            <asp:TextBox ID="txtCode" runat="server" TextMode="multiline" Width="640px" Height="390px"></asp:TextBox> 

        </div> 

        <div class="btnRun"> 

            <asp:Button ID="btnSubmit" runat="server" Text="  转  换  " OnClick="btnSubmit_Click" /> 

            <pre id="pre1" style="display: none;"> 

            <CH:CodeHighlighter runat="server" ID="Highlighter" OnPostRender="CodeHighlighter_PostRender" /> 

            </pre> 

            <asp:Label ID="lblCode" Style="display: none;" runat="server"></asp:Label> 

        </div> 

    </div> 

    </form> 

</body> 

</html>

接下来修改FCKeditor/fckconfig.js，在原文件中我们能找到// FCKConfig.Plugins.Add( 'autogrow' ) ;这段代码，在这段代码下一行插入：FCKConfig.Plugins.Add( 'insertcode' , 'zh-cn,en' ) ;

最后修改Web.config文件：（请参考CodeHighlighter/Web.config）
在<configuration>里插入：

<configSections> 

    <section name="codeHighlighter" requirePermission="false" type="ActiproSoftware.CodeHighlighter.CodeHighlighterConfigurationSectionHandler, ActiproSoftware.CodeHighlighter.Net20" /> 

</configSections>

在<system.web></system.web>后插入：

<codeHighlighter> 

  <cache languageTimeout="3" /> 

  <keywordLinking enabled="true" target="_blank" defaultKeywordCollectionKey="ActiproKeywords"> 

    <keywordCollection key="ActiproKeywords"> 

      <explicitKeyword tokenKey="IdentifierToken" patternValue="Actipro" url="http://www.actiprosoftware.com" caseSensitive="false" /> 

      <explicitKeyword tokenKey="IdentifierToken" patternValue="CodeHighlighter" url="http://www.codehighlighter.com" caseSensitive="false" /> 

    </keywordCollection> 

  </keywordLinking> 

  <languages> 

    <language key="Assembly" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.Assembly.xml" /> 

    <language key="BatchFile" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.BatchFile.xml" /> 

    <language key="C#" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.CSharp.xml" /> 

    <language key="CSS" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.CSS.xml" /> 

    <language key="HTML" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.HTML.xml" /> 

    <language key="INIFile" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.INIFile.xml" /> 

    <language key="Java" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.Java.xml" /> 

    <language key="JScript" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.JScript.xml" /> 

    <language key="Lua" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.Lua.xml" /> 

    <language key="MSIL" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.MSIL.xml" /> 

    <language key="Pascal" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.Pascal.xml" /> 

    <language key="Perl" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.Perl.xml" /> 

    <language key="PHP" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.PHP.xml" /> 

    <language key="PowerShell" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.PowerShell.xml" /> 

    <language key="Python" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.Python.xml" /> 

    <language key="SQL" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.SQL.xml" /> 

    <language key="VB.NET" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.VBDotNet.xml" /> 

    <language key="VBScript" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.VBScript.xml" /> 

    <language key="XAML" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.XAML.xml" /> 

    <language key="XML" definitionPath="~/fckeditor/editor/plugins/insertcode/languages/lexers/ActiproSoftware.XML.xml" /> 

  </languages> 

  <lineNumberMargin foreColor="Teal" paddingCharacter=" " visible="true" /> 

  <outlining enabled="true" imagesPath="~/fckeditor/editor/plugins/insertcode/images/" /> 

  <spacesInTabs count="4" /> 

</codeHighlighter>