直接来干活上代码。就一个函数execCommand()；自己百度一下。

在线预览

  1. <!doctype html>
  2. <html>
  3. <head>
  4. <title>Rich Text Editor</title>
  5. <script type="text/javascript">
  6. var oDoc, sDefTxt;
  7.  
  8. function initDoc() {
  9.   oDoc = document.getElementById("textBox");
  10.   sDefTxt = oDoc.innerHTML;
  11.   if (document.compForm.switchMode.checked) { setDocMode(true); }
  12. }
  13.  
  14. function formatDoc(sCmd, sValue) {
  15.   if (validateMode()) { document.execCommand(sCmd, false, sValue); oDoc.focus(); }
  16. }
  17.  
  18. function validateMode() {
  19.   if (!document.compForm.switchMode.checked) { return true ; }
  20.   alert("Uncheck \"Show HTML\".");
  21.   oDoc.focus();
  22.   return false;
  23. }
  24.  
  25. function setDocMode(bToSource) {
  26.   var oContent;
  27.   if (bToSource) {
  28.     oContent = document.createTextNode(oDoc.innerHTML);
  29.     oDoc.innerHTML = "";
  30.     var oPre = document.createElement("pre");
  31.     oDoc.contentEditable = false;
  32.     oPre.id = "sourceText";
  33.     oPre.contentEditable = true;
  34.     oPre.appendChild(oContent);
  35.     oDoc.appendChild(oPre);
  36.   } else {
  37.     if (document.all) {
  38.       oDoc.innerHTML = oDoc.innerText;
  39.     } else {
  40.       oContent = document.createRange();
  41.       oContent.selectNodeContents(oDoc.firstChild);
  42.       oDoc.innerHTML = oContent.toString();
  43.     }
  44.     oDoc.contentEditable = true;
  45.   }
  46.   oDoc.focus();
  47. }
  48.  
  49. function printDoc() {
  50.   if (!validateMode()) { return; }
  51.   var oPrntWin = window.open("","_blank","width=450,height=470,left=400,top=100,menubar=yes,toolbar=no,location=no,scrollbars=yes");
  52.   oPrntWin.document.open();
  53.   oPrntWin.document.write("<!doctype html><html><head><title>Print<\/title><\/head><body onload=\"print();\">" + oDoc.innerHTML + "<\/body><\/html>");
  54.   oPrntWin.document.close();
  55. }
  56. </script>
  57. <style type="text/css">
  58. .intLink { cursor: pointer; }
  59. img.intLink { border: 0; }
  60. #toolBar1 select { font-size:10px; }
  61. #textBox {
  62.   width: 540px;
  63.   height: 200px;
  64.   border: 1px #000000 solid;
  65.   padding: 12px;
  66.   overflow: scroll;
  67. }
  68. #textBox #sourceText {
  69.   padding: 0;
  70.   margin: 0;
  71.   min-width: 498px;
  72.   min-height: 200px;
  73. }
  74. #editMode label { cursor: pointer; }
  75. </style>
  76. </head>
  77. <body onload="initDoc();">
  78. <form name="compForm" method="post" action="sample.php" onsubmit="if(validateMode()){this.myDoc.value=oDoc.innerHTML;return true;}return false;">
  79. <input type="hidden" name="myDoc">
  80. <div id="toolBar1">
  81. <select onchange="formatDoc('formatblock',this[this.selectedIndex].value);this.selectedIndex=0;">
  82. <option selected>- formatting -</option>
  83. <option value="h1">Title 1 <h1></option>
  84. <option value="h2">Title 2 <h2></option>
  85. <option value="h3">Title 3 <h3></option>
  86. <option value="h4">Title 4 <h4></option>
  87. <option value="h5">Title 5 <h5></option>
  88. <option value="h6">Subtitle <h6></option>
  89. <option value="p">Paragraph <p></option>
  90. <option value="pre">Preformatted <pre></option>
  91. </select>
  92. <select onchange="formatDoc('fontname',this[this.selectedIndex].value);this.selectedIndex=0;">
  93. <option class="heading" selected>- font -</option>
  94. <option>Arial</option>
  95. <option>Arial Black</option>
  96. <option>Courier New</option>
  97. <option>Times New Roman</option>
  98. </select>
  99. <select onchange="formatDoc('fontsize',this[this.selectedIndex].value);this.selectedIndex=0;">
  100. <option class="heading" selected>- size -</option>
  101. <option value="1">Very small</option>
  102. <option value="2">A bit small</option>
  103. <option value="3">Normal</option>
  104. <option value="4">Medium-large</option>
  105. <option value="5">Big</option>
  106. <option value="6">Very big</option>
  107. <option value="7">Maximum</option>
  108. </select>
  109. <select onchange="formatDoc('forecolor',this[this.selectedIndex].value);this.selectedIndex=0;">
  110. <option class="heading" selected>- color -</option>
  111. <option value="red">Red</option>
  112. <option value="blue">Blue</option>
  113. <option value="green">Green</option>
  114. <option value="black">Black</option>
  115. </select>
  116. <select onchange="formatDoc('backcolor',this[this.selectedIndex].value);this.selectedIndex=0;">
  117. <option class="heading" selected>- background -</option>
  118. <option value="red">Red</option>
  119. <option value="green">Green</option>
  120. <option value="black">Black</option>
  121. </select>
  122. </div>
  123. <div id="toolBar2">
  124. <img class="intLink" title="Clean" onclick="if(validateMode()&&confirm('Are you sure?')){oDoc.innerHTML=sDefTxt};" src="data:image/gif;base64,R0lGODlhFgAWAIQbAD04KTRLYzFRjlldZl9vj1dusY14WYODhpWIbbSVFY6O7IOXw5qbms+wUbCztca0ccS4kdDQjdTLtMrL1O3YitHa7OPcsd/f4PfvrvDv8Pv5xv///////////////////yH5BAEKAB8ALAAAAAAWABYAAAV84CeOZGmeaKqubMteyzK547QoBcFWTm/jgsHq4rhMLoxFIehQQSAWR+Z4IAyaJ0kEgtFoLIzLwRE4oCQWrxoTOTAIhMCZ0tVgMBQKZHAYyFEWEV14eQ8IflhnEHmFDQkAiSkQCI2PDC4QBg+OAJc0ewadNCOgo6anqKkoIQA7" />
  125. <img class="intLink" title="Print" onclick="printDoc();" src="data:image/png;base64,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">
  126. <img class="intLink" title="Undo" onclick="formatDoc('undo');" src="data:image/gif;base64,R0lGODlhFgAWAOMKADljwliE33mOrpGjuYKl8aezxqPD+7/I19DV3NHa7P///////////////////////yH5BAEKAA8ALAAAAAAWABYAAARR8MlJq7046807TkaYeJJBnES4EeUJvIGapWYAC0CsocQ7SDlWJkAkCA6ToMYWIARGQF3mRQVIEjkkSVLIbSfEwhdRIH4fh/DZMICe3/C4nBQBADs=" />
  127. <img class="intLink" title="Redo" onclick="formatDoc('redo');" src="data:image/gif;base64,R0lGODlhFgAWAMIHAB1ChDljwl9vj1iE34Kl8aPD+7/I1////yH5BAEKAAcALAAAAAAWABYAAANKeLrc/jDKSesyphi7SiEgsVXZEATDICqBVJjpqWZt9NaEDNbQK1wCQsxlYnxMAImhyDoFAElJasRRvAZVRqqQXUy7Cgx4TC6bswkAOw==" />
  128. <img class="intLink" title="Remove formatting" onclick="formatDoc('removeFormat')" src="data:image/png;base64,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">
  129. <img class="intLink" title="Bold" onclick="formatDoc('bold');" src="data:image/gif;base64,R0lGODlhFgAWAID/AMDAwAAAACH5BAEAAAAALAAAAAAWABYAQAInhI+pa+H9mJy0LhdgtrxzDG5WGFVk6aXqyk6Y9kXvKKNuLbb6zgMFADs=" />
  130. <img class="intLink" title="Italic" onclick="formatDoc('italic');" src="data:image/gif;base64,R0lGODlhFgAWAKEDAAAAAF9vj5WIbf///yH5BAEAAAMALAAAAAAWABYAAAIjnI+py+0Po5x0gXvruEKHrF2BB1YiCWgbMFIYpsbyTNd2UwAAOw==" />
  131. <img class="intLink" title="Underline" onclick="formatDoc('underline');" src="data:image/gif;base64,R0lGODlhFgAWAKECAAAAAF9vj////////yH5BAEAAAIALAAAAAAWABYAAAIrlI+py+0Po5zUgAsEzvEeL4Ea15EiJJ5PSqJmuwKBEKgxVuXWtun+DwxCCgA7" />
  132. <img class="intLink" title="Left align" onclick="formatDoc('justifyleft');" src="data:image/gif;base64,R0lGODlhFgAWAID/AMDAwAAAACH5BAEAAAAALAAAAAAWABYAQAIghI+py+0Po5y02ouz3jL4D4JMGELkGYxo+qzl4nKyXAAAOw==" />
  133. <img class="intLink" title="Center align" onclick="formatDoc('justifycenter');" src="data:image/gif;base64,R0lGODlhFgAWAID/AMDAwAAAACH5BAEAAAAALAAAAAAWABYAQAIfhI+py+0Po5y02ouz3jL4D4JOGI7kaZ5Bqn4sycVbAQA7" />
  134. <img class="intLink" title="Right align" onclick="formatDoc('justifyright');" src="data:image/gif;base64,R0lGODlhFgAWAID/AMDAwAAAACH5BAEAAAAALAAAAAAWABYAQAIghI+py+0Po5y02ouz3jL4D4JQGDLkGYxouqzl43JyVgAAOw==" />
  135. <img class="intLink" title="Numbered list" onclick="formatDoc('insertorderedlist');" src="data:image/gif;base64,R0lGODlhFgAWAMIGAAAAADljwliE35GjuaezxtHa7P///////yH5BAEAAAcALAAAAAAWABYAAAM2eLrc/jDKSespwjoRFvggCBUBoTFBeq6QIAysQnRHaEOzyaZ07Lu9lUBnC0UGQU1K52s6n5oEADs=" />
  136. <img class="intLink" title="Dotted list" onclick="formatDoc('insertunorderedlist');" src="data:image/gif;base64,R0lGODlhFgAWAMIGAAAAAB1ChF9vj1iE33mOrqezxv///////yH5BAEAAAcALAAAAAAWABYAAAMyeLrc/jDKSesppNhGRlBAKIZRERBbqm6YtnbfMY7lud64UwiuKnigGQliQuWOyKQykgAAOw==" />
  137. <img class="intLink" title="Quote" onclick="formatDoc('formatblock','blockquote');" src="data:image/gif;base64,R0lGODlhFgAWAIQXAC1NqjFRjkBgmT9nqUJnsk9xrFJ7u2R9qmKBt1iGzHmOrm6Sz4OXw3Odz4Cl2ZSnw6KxyqO306K63bG70bTB0rDI3bvI4P///////////////////////////////////yH5BAEKAB8ALAAAAAAWABYAAAVP4CeOZGmeaKqubEs2CekkErvEI1zZuOgYFlakECEZFi0GgTGKEBATFmJAVXweVOoKEQgABB9IQDCmrLpjETrQQlhHjINrTq/b7/i8fp8PAQA7" />
  138. <img class="intLink" title="Add indentation" onclick="formatDoc('outdent');" src="data:image/gif;base64,R0lGODlhFgAWAMIHAAAAADljwliE35GjuaezxtDV3NHa7P///yH5BAEAAAcALAAAAAAWABYAAAM2eLrc/jDKCQG9F2i7u8agQgyK1z2EIBil+TWqEMxhMczsYVJ3e4ahk+sFnAgtxSQDqWw6n5cEADs=" />
  139. <img class="intLink" title="Delete indentation" onclick="formatDoc('indent');" src="data:image/gif;base64,R0lGODlhFgAWAOMIAAAAADljwl9vj1iE35GjuaezxtDV3NHa7P///////////////////////////////yH5BAEAAAgALAAAAAAWABYAAAQ7EMlJq704650B/x8gemMpgugwHJNZXodKsO5oqUOgo5KhBwWESyMQsCRDHu9VOyk5TM9zSpFSr9gsJwIAOw==" />
  140. <img class="intLink" title="Hyperlink" onclick="var sLnk=prompt('Write the URL here','http:\/\/');if(sLnk&&sLnk!=''&&sLnk!='http://'){formatDoc('createlink',sLnk)}" src="data:image/gif;base64,R0lGODlhFgAWAOMKAB1ChDRLY19vj3mOrpGjuaezxrCztb/I19Ha7Pv8/f///////////////////////yH5BAEKAA8ALAAAAAAWABYAAARY8MlJq7046827/2BYIQVhHg9pEgVGIklyDEUBy/RlE4FQF4dCj2AQXAiJQDCWQCAEBwIioEMQBgSAFhDAGghGi9XgHAhMNoSZgJkJei33UESv2+/4vD4TAQA7" />
  141. <img class="intLink" title="Cut" onclick="formatDoc('cut');" src="data:image/gif;base64,R0lGODlhFgAWAIQSAB1ChBFNsRJTySJYwjljwkxwl19vj1dusYODhl6MnHmOrpqbmpGjuaezxrCztcDCxL/I18rL1P///////////////////////////////////////////////////////yH5BAEAAB8ALAAAAAAWABYAAAVu4CeOZGmeaKqubDs6TNnEbGNApNG0kbGMi5trwcA9GArXh+FAfBAw5UexUDAQESkRsfhJPwaH4YsEGAAJGisRGAQY7UCC9ZAXBB+74LGCRxIEHwAHdWooDgGJcwpxDisQBQRjIgkDCVlfmZqbmiEAOw==" />
  142. <img class="intLink" title="Copy" onclick="formatDoc('copy');" src="data:image/gif;base64,R0lGODlhFgAWAIQcAB1ChBFNsTRLYyJYwjljwl9vj1iE31iGzF6MnHWX9HOdz5GjuYCl2YKl8ZOt4qezxqK63aK/9KPD+7DI3b/I17LM/MrL1MLY9NHa7OPs++bx/Pv8/f///////////////yH5BAEAAB8ALAAAAAAWABYAAAWG4CeOZGmeaKqubOum1SQ/kPVOW749BeVSus2CgrCxHptLBbOQxCSNCCaF1GUqwQbBd0JGJAyGJJiobE+LnCaDcXAaEoxhQACgNw0FQx9kP+wmaRgYFBQNeAoGihCAJQsCkJAKOhgXEw8BLQYciooHf5o7EA+kC40qBKkAAAGrpy+wsbKzIiEAOw==" />
  143. <img class="intLink" title="Paste" onclick="formatDoc('paste');" src="data:image/gif;base64,R0lGODlhFgAWAIQUAD04KTRLY2tXQF9vj414WZWIbXmOrpqbmpGjudClFaezxsa0cb/I1+3YitHa7PrkIPHvbuPs+/fvrvv8/f///////////////////////////////////////////////yH5BAEAAB8ALAAAAAAWABYAAAWN4CeOZGmeaKqubGsusPvBSyFJjVDs6nJLB0khR4AkBCmfsCGBQAoCwjF5gwquVykSFbwZE+AwIBV0GhFog2EwIDchjwRiQo9E2Fx4XD5R+B0DDAEnBXBhBhN2DgwDAQFjJYVhCQYRfgoIDGiQJAWTCQMRiwwMfgicnVcAAAMOaK+bLAOrtLUyt7i5uiUhADs=" />
  144. </div>
  145. <div id="textBox" contenteditable="true"><p>Lorem ipsum</p></div>
  146. <p id="editMode"><input type="checkbox" name="switchMode" id="switchBox" onchange="setDocMode(this.checked);" /> <label for="switchBox">Show HTML</label></p>
  147. <p><input type="submit" value="Send" /></p>
  148. </form>
  149. </body>
  150. </html>

　　

原生javascript 实现的文本编辑器的更多相关文章

  1. JavaScript Iframe富文本编辑器中的光标定位

    最近在项目中碰到一个比较棘手的问题: 在iframe富文本编辑器中,有个工具栏,这个工具栏在iframe标签之外,工具栏上有一个按钮,点击该按钮向iframe正在编辑中的光标处插入一个图片,图片会插入 ...

  2. 【JavaScript】富文本编辑器

    这是js写的富文本编辑器,还存在一些bug,但基本功能已经实现,通过这个练习,巩固了js富文本编辑方面的知识,里面包含颜色选择器.全屏.表情.上传图片等功能,每个功能实际对应的就是一个小插件啦 部分程 ...

  3. wangEditor-基于javascript和css开发的 Web富文本编辑器， 轻量、简洁、易用、开源免费(2)

    <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8&quo ...

  4. 富文本编辑器防止xss注入javascript版

    富文本编辑器:ueditor 其实富文本编辑器已经有防止xss注入功能,但是你服务端程序在接收的时候在做一次转义,否则有可能然后前端验证直接提交数据导致被xss攻击. 为了节省后端程序开销则在前端 显 ...

  5. javascript 简易文本编辑器

    转载请注明出处:http://www.cnblogs.com/enzozo/p/4357031.html 写在前面: 本文本编辑器具备功能:选择字体大小.颜色.加粗.斜体.下划线.点击 'Submit ...

  6. Javascript实现简单的富文本编辑器

    <span style="font-size:14px;"><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 T ...

  7. JavaScript 实现文本编辑器

    JavaScript 实现文本编辑器 最近,我需要做一个非常基本的网页内容编辑功能.我不想使用 iframe ,我也不想要一个功能特别多的复杂编辑器,只需要很基本的内容编辑功能,例如粗体,斜体,列表, ...

  8. 10个免费的javascript富文本编辑器（jQuery and non-jQuery）

    祝愿园子里的朋友圣诞节快乐. 本文介绍了10个免费易用富文本编辑器(rich text editors,RTE),其中5个是Jquery插件,另外5个是非Jquery富文本编辑器 简介 Javascr ...

  9. Javascript富文本编辑器

    分享几款Javascript富文本编辑器 ueditor jqframework xheditor htmlbox kindeditor wymeditor jhtmlarea markitup ck ...

随机推荐

  1. Linux C高级编程——网络编程之以太网（2）

    Linux网络编程--以太网 宗旨:技术的学习是有限的,分享的精神是无限的. 1.以太网帧格式 源地址和目的地址是指网卡的硬件地址(也叫MAC地址),长度是48位,是在网卡出厂时固化的.用ifconf ...

  2. automake--关于两个文件configure.in和Makefile.am的编写

    http://blog.csdn.net/shanzhizi/article/details/30251763 automake主要通过编辑Makefile.am来控制它的行为,下面就常用的三个Mak ...

  3. ASPCMS不能上传2M以上大文件修改！

    \admin_aspcms\editor\upload.asp修改80行左右maxattachsize=xxxxxxxx'最大上传大小,默认是2M前提是IIS上传大小已修 其他有关IIS方面的修改: ...

  4. AFNetworking 文件上传Data,File图片，文件等上传

    一:AFNetworking的文件上传: 主要几个以下类似 - (BOOL)appendPartWithFileURL:(NSURL *)fileURL name:(NSString *)name e ...

  5. php文件上传接口及文件上传错误服务器配置

    一:上传表单 <form enctype="multipart/form-data" action="doFileUp.php" method=" ...

  6. HipHop PHP简介(转)

    HipHop PHP是FaceBook的一个开源项目,它优化了FaceBook网站Web服务器的运行速度. HipHop 是一个源代码转换器.它将 PHP 代码转换为高度优化的 C++ 代码,然后再使 ...

  7. ES6 set 应用场景

    1.数组去重 let arr = [3, 5, 2, 2, 5, 5]; let unique = [...new Set(arr)]; // [3, 5, 2] 2.并集(Union).交集(Int ...

  8. hibernate 1 + N 问题解决

    1+N就是在hibernate中第一次查一个所需要的表的内容,他会把别的相关表的内容也查询一遍.   解决办法有三种: 1,设置LAZY. 2,借鉴createCriteria的查询语句,from T ...

  9. Machine Learning：PageRank算法

    1. PageRank算法概述 PageRank,即网页排名,又称网页级别.Google左側排名或佩奇排名.         在谷歌主导互联网搜索之前, 多数搜索引擎採用的排序方法, 是以被搜索词语在 ...

  10. sqlite 小刀 初试

    SQLite,是一款轻型的数据库,是遵守ACID的关系型数据库管理系统,它包含在一个相对小的C库中.它是D.RichardHipp建立的公有领域项目.它的设计目标是嵌入式的,而且目前已经在很多嵌入式产 ...