CKEditor扩展插件：自动排版功能autoformat插件实现方法详解

本文实例讲述了CKEditor扩展插件：自动排版功能autoformat插件实现方法。分享给大家供大家参考，具体如下：

1.注册插件

首先找到根目录下的ckeditor/config.js文件，打开文件如下：

CKEDITOR.editorConfig = function (config) { // Define changes to default configuration here. For example: // config.language = 'fr'; // config.uiColor = '#AADC6E';}; 

我们需要将我们的插件注册进CKEDITOR中。

在方法内部加入如下代码：

config.extraPlugins = "autoformart";

如果值中有其他字符,则用","逗号分隔,增加.

2.创建Plugin.js文件

在Plugins文件下新建一个与插件名相同的文件夹：aotuformart 的文件夹，意为自动排版。

再在文件夹内创建一个plugin.js文件，因为在注册插件后，首先加载和执行的就是plugin.js这个文件。

首先我们构建一个自执行函数，在自执行函数中添加一个插件：

(function(){ CKEDITOR.plugins.add('autoformat',{  init:function(editor){  //初始化操作  } });})();

添加一个命令和按钮在初始化函数中，如下：

(function(){ CKEDITOR.plugins.add('autoformat',{  init:function(editor){   editor.addCommand( 'autoformat', new CKEDITOR.autoformatCommand());   editor.ui.addButton('Autoformat',{label:'自动排版',command:'autoformat',icon:CKEDITOR.getUrl( this.path + 'images/autoformat.png' )});  } });})();

addCommand方法有两个参数：插件命令名称，第二个是命令执行的方法。

addButton方法的第一个参数是：插件的按钮名称

　　　　label：鼠标悬浮时插件提示

　　　　command：执行插件命令的名称

　　　　icon：插件图标

所有代码(上边的两块代码为演示注册插件)

//一键排版(function () { CKEDITOR.plugins.add('autoformat', {  requires: ['styles', 'button'],  init: function (a) {   a.addCommand('autoformat', CKEDITOR.plugins.autoformat.commands.autoformat);   a.ui.addButton('autoformat', {    label: "一键排版",    command: 'autoformat',    icon: this.path + "images/autoformat.png"   });  } }); CKEDITOR.plugins.autoformat = {  commands: {   autoformat: {    exec: function (editor) {     formatText(editor);    }   }  } }; //格式化 function formatText(editor) {  var myeditor = editor;  if (myeditor.mode == "wysiwyg") {   var tempimg = new Array();   var temptable = new Array();   var tempobject = new Array();   var isPart = false; //暂时无法实现局部格式化   if (!isPart) {    var tmpDiv = document.createElement("DIV");    var editorhtml = myeditor.getData();    editorhtml = editorhtml.replace(/<div style="page-break-after: always;?">/s*<span style="display: none;?"> <//span>/s*<//div>/gi, '<p>[ page]</p>'); //将div span标签替换为p 标签    tmpDiv.innerHTML = editorhtml.replace(/ /gi, '').replace(/<div/gi, '<p').replace(/<//div/gi, '</p');  //移除空格标签，div替换为p标签。    if (window.navigator.userAgent.toLowerCase().indexOf("msie") > 0) {     tmpDiv.innerHTML = tmpDiv.innerHTML.replace(/<//p>/gi, '<br /><//p>');  //每个段落相隔一行    }    var tables = tmpDiv.getElementsByTagName("TABLE");    if (tables != null && tables.length > 0) {     for (var j = 0; j < tables.length; j++) {      temptable[temptable.length] = tables[j].outerHTML;     }     var formattableCount = 0;     for (var j = 0; j < tables.length;) {      tables[j].outerHTML = "#FormatTableID_" + formattableCount + "#";      formattableCount++;     }    }    var objects = tmpDiv.getElementsByTagName("OBJECT");    if (objects != null && objects.length > 0) {     for (var j = 0; j < objects.length; j++) {      tempobject[tempobject.length] = objects[j].outerHTML;     }     var formatobjectCount = 0;     for (var j = 0; j < objects.length;) {      objects[j].outerHTML = "#FormatObjectID_" + formatobjectCount + "#";      formatobjectCount++;     }    }    var imgs = tmpDiv.getElementsByTagName("IMG");    if (imgs != null && imgs.length > 0) {     for (var j = 0; j < imgs.length; j++) {      var t = document.createElement("IMG");      t.alt = imgs[j].alt;      t.src = imgs[j].src;      t.width = imgs[j].width;      t.height = imgs[j].height;      t.align = imgs[j].align;      tempimg[tempimg.length] = t;     }     var formatImgCount = 0;     for (var j = 0; j < imgs.length;) {      imgs[j].outerHTML = "#FormatImgID_" + formatImgCount + "#";      formatImgCount++;     }    }    var strongarray = new Array();    var strongcount = 0;    for (var i = 0; i < tmpDiv.getElementsByTagName('b').length; i++) {     strongarray[strongcount] = tmpDiv.getElementsByTagName('b')[i].innerText.trim();     tmpDiv.getElementsByTagName('b')[i].innerHTML = "#FormatStrongID_" + strongcount + "#";     strongcount++;    }    for (var i = 0; i < tmpDiv.getElementsByTagName('strong').length; i++) {     strongarray[strongcount] = tmpDiv.getElementsByTagName('strong')[i].innerText.trim();     tmpDiv.getElementsByTagName('strong')[i].innerHTML = "#FormatStrongID_" + strongcount + "#";     strongcount++;    }    var html = processFormatText(tmpDiv.innerText);    html = html.replace(/<p>/[ page/]<//p>/gi, '<div style="page-break-after: always;"><span style="display: none;"> </span></div>'); //p标签替换回原来的div和span标签。    if (temptable != null && temptable.length > 0) {     for (var j = 0; j < temptable.length; j++) {      var tablehtml = temptable[j];      html = html.replace("#FormatTableID_" + j + "#", tablehtml);     }    }    if (tempobject != null && tempobject.length > 0) {     for (var j = 0; j < tempobject.length; j++) {      var objecthtml = "<p align=/"center/">" + tempobject[j] + "</p>";      html = html.replace("#FormatObjectID_" + j + "#", objecthtml);     }    }    if (tempimg != null && tempimg.length > 0) {     for (var j = 0; j < tempimg.length; j++) {      var imgheight = "";      var imgwidth = "";      if (tempimg[j].height != 0)       imgheight = " height=/"" + tempimg[j].height + "/"";      if (tempimg[j].width != 0)       imgwidth = " width=/"" + tempimg[j].width + "/"";      var imgalign = "";      if (tempimg[j].align != "")       imgalign = " align=/"" + tempimg[j].align + "/"";      var imghtml = "<p align=/"center/"><img src=/"" + tempimg[j].src + "/" alt=/"" + tempimg[j].alt + "/"" + imgwidth + " " + imgheight + " align=/"" + tempimg[j].align + "/" border=/"0/"></p>";      html = html.replace("#FormatImgID_" + j + "#", imghtml);     }    }    for (var i = 0; i < strongcount; i++) {     html = html.replace("#FormatStrongID_" + i + "#", "<p><strong>" + strongarray[i] + "</strong></p>");    }    while (html.indexOf("</p></p>") != -1) html = html.replace("</p></p>", "</p>");    while (html.indexOf('<p><p align="center">') != -1) html = html.replace('<p><p align="center">', '<p align="center">');    editor.setData(html);   } else {   }  } else {   alert('必须在设计模式下操作！');  } } function processFormatText(textContext) {  var text = dbc2Sbc(textContext);  var prefix = "";  var tmps = text.split("/n");  var html = "";  for (var i = 0; i < tmps.length; i++) {   var tmp = tmps[i].trim();   if (tmp.length > 0) {    var reg = /#Format[A-Za-z]+_/d+#/gi;    var f = reg.exec(tmp);    if (f != null) {     tmp = tmp.replace(/#Format[A-Za-z]+_/d+#/gi, '');     html += f;     if (tmp != "")      html += "<p align=/"center/">" + tmp + "</p>/n";    } else {     html += "<p style='text-indent:2em;'>" + tmp + "</p>/n";    }   }  }  return html; } function dbc2Sbc(str) {  var result = '';  for (var i = 0; i < str.length; i++) {   var code = str.charCodeAt(i);   // “65281”是“！”，“65373”是“｝”，“65292”是“，”。不转换"，"   if (code >= 65281 && code < 65373 && code != 65292 && code != 65306) {    // “65248”是转换码距    result += String.fromCharCode(str.charCodeAt(i) - 65248);   } else {    result += str.charAt(i);   }  }  return result; } String.prototype.trim = function () {  return this.replace(/(^[/s　]*)|([/s　]*$)/g, ""); }; String.prototype.leftTrim = function () {  return this.replace(/(^/s*)/g, ""); }; String.prototype.rightTrim = function () {  return this.replace(/(/s*$)/g, ""); };})();