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(/
\s* <\/span>\s*<\/div>/gi, '

[ page]

'); //将div span标签替换为p 标签 tmpDiv.innerHTML = editorhtml.replace(/ /gi, '').replace(/
0) { tmpDiv.innerHTML = tmpDiv.innerHTML.replace(/<\/p>/gi, '
<\/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(/

\[ page\]<\/p>/gi, '

 
'); //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 = "

" + tempobject[j] + "

"; 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 = "

\""

"; html = html.replace("#FormatImgID_" + j + "#", imghtml); } } for (var i = 0; i < strongcount; i++) { html = html.replace("#FormatStrongID_" + i + "#", "

" + strongarray[i] + "

"); } while (html.indexOf("

") != -1) html = html.replace("

", "

"); while (html.indexOf('

') != -1) html = html.replace('

', '

'); 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 += "

" + tmp + "

\n"; } else { html += "

" + tmp + "

\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, ""); }; })();

3、配置到菜单中

例basic模式:

['Bold', 'Italic', '-', 'NumberedList', 'BulletedList', '-', 'Link', 'Unlink' ],['Maximize']

改为

['Bold', 'Italic', '-', 'NumberedList', 'BulletedList', '-', 'Link', 'Unlink' ],['Maximize','autoformat']

4、图标

当前占位已经实现,但由于没有图标,显示上会有问题,此时自己找或制作一个图标,放到autoformat/images/下命名为autoformat.png

借用某编辑器的:

如未生效,记得清除cookie或更换浏览器查看显示效果。

5、效果对比

CKEditor扩展插件:自动排版功能autoformat插件实现方法详解_第1张图片

CKEditor扩展插件:自动排版功能autoformat插件实现方法详解_第2张图片

希望本文所述对大家CKEDitor富文本编辑器开发有所帮助。

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