1. 程式人生 > 程式設計 >CKEditor擴充套件外掛:自動排版功能autoformat外掛實現方法詳解

CKEditor擴充套件外掛:自動排版功能autoformat外掛實現方法詳解

本文例項講述了CKEditor擴充套件外掛:自動排版功能autoformat外掛實現方法。分享給大家供大家參考,具體如下:

1.註冊外掛

首先找到根目錄下的ckeditor/config.js檔案,開啟檔案如下:

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

我們需要將我們的外掛註冊進CKEDITOR中。

在方法內部加入如下程式碼:

config.extraPlugins = "autoformart";

如果值中有其他字元,則用","逗號分隔,增加.

2.建立Plugin.js檔案

在Plugins檔案下新建一個與外掛名相同的資料夾:aotuformart 的資料夾,意為自動排版。

再在資料夾內建立一個plugin.js檔案,因為在註冊外掛後,首先載入和執行的就是plugin.js這個檔案。

首先我們構建一個自執行函式,在自執行函式中新增一個外掛:

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

新增一個命令和按鈕在初始化函式中,如下:

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

addCommand方法有兩個引數:外掛命令名稱,第二個是命令執行的方法。

addButton方法的第一個引數是:外掛的按鈕名稱

    label:滑鼠懸浮時外掛提示

    command:執行外掛命令的名稱

    icon:外掛圖示

所有程式碼(上邊的兩塊程式碼為演示註冊外掛)

//一鍵排版
(function () {
 CKEDITOR.plugins.add('autoformat',{
  requires: ['styles','button'],init: function (a) {
   a.addCommand('autoformat',CKEDITOR.plugins.autoformat.commands.autoformat);
   a.ui.addButton('autoformat',{
    label: "一鍵排版",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; //暫時無法實現區域性格式化
   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>'); //將div span標籤替換為p 標籤
    tmpDiv.innerHTML = editorhtml.replace(//gi,'').replace(/<div/gi,'<p').replace(/<\/div/gi,'</p');  //移除空格標籤,div替換為p標籤。
    if (window.navigator.userAgent.toLowerCase().indexOf("msie") > 0) {
     tmpDiv.innerHTML = tmpDiv.innerHTML.replace(/<\/p>/gi,'<br /><\/p>');  //每個段落相隔一行
    }
    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標籤替換回原來的div和span標籤。
    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('必須在設計模式下操作!');
  }
 }
 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“,”。不轉換","
   if (code >= 65281 && code < 65373 && code != 65292 && code != 65306) {
    // “65248”是轉換碼距
    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、配置到選單中

例basic模式:

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

改為

['Bold',['Maximize','autoformat']

4、圖示

當前佔位已經實現,但由於沒有圖示,顯示上會有問題,此時自己找或製作一個圖示,放到autoformat/images/下命名為autoformat.png

借用某編輯器的:CKEditor擴充套件外掛:自動排版功能autoformat外掛實現方法詳解

如未生效,記得清除cookie或更換瀏覽器檢視顯示效果。

5、效果對比

CKEditor擴充套件外掛:自動排版功能autoformat外掛實現方法詳解

CKEditor擴充套件外掛:自動排版功能autoformat外掛實現方法詳解

希望本文所述對大家CKEDitor富文字編輯器開發有所幫助。