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<!doctype html> <html> <head> <title>CodeMirror: HTML5 preview</title> <meta charset="utf-8"> <meta name='viewport' content='initial-scale=1.0'> <meta http-equiv='X-UA-Compatible' content='IE=9' /> <link type='text/css' rel='stylesheet' href='http://necolas.github.io/normalize.css/3.0.1/normalize.css'/> <script type='text/javascript' src='http://code.jquery.com/jquery-latest.min.js'></script> <script src='http://codemirror.net/lib/codemirror.js'></script> <script src='http://codemirror.net/mode/xml/xml.js'></script> <script src='http://codemirror.net/mode/javascript/javascript.js'></script> <script src='http://codemirror.net/mode/css/css.js'></script> <script src='http://codemirror.net/mode/htmlmixed/htmlmixed.js'></script> <link rel='stylesheet' href='http://codemirror.net/lib/codemirror.css'> <link rel='stylesheet' href='http://codemirror.net/doc/docs.css'> <script src="http://codemirror.net/mode/htmlmixed/htmlmixed.js"></script> <script src="http://codemirror.net/addon/edit/closetag.js"></script> <script src="http://codemirror.net/addon/edit/matchbrackets.js"></script> <script src="http://codemirror.net/addon/selection/active-line.js"></script> </head> <body> <div align='center'> <button class='jquery'>JQuery</button> </div> <textarea id="code" name="code"><!doctype html> <html> <head> <meta charset=utf-8> <title>Hello world!</title> </head> <body> <!-- HTML Comment--> Hello world! </body> </html></textarea> <iframe id="preview"></iframe> </body> </html>
.CodeMirror { float: left; width: 50%; border: 1px solid black; } iframe { width: 49%; float: left; height: 300px; border: 1px solid black; border-left: 0; }
$(document).ready(function() { // Add JS Libraries $(".jquery").click(function() { editor.setCursor({line: 5 , ch : 0 }); editor.replaceRange("<script src='http://code.jquery.com/jquery-latest.min.js'></script>\n", editor.getCursor()); editor.focus(); }); }); var delay; // Initialize CodeMirror editor var editor = CodeMirror.fromTextArea(document.getElementById('code'), { mode: 'text/html', tabMode: 'indent', styleActiveLine: true, lineNumbers: true, lineWrapping: true, autoCloseTags: true }); // Live preview editor.on("change", function() { clearTimeout(delay); delay = setTimeout(updatePreview, 300); }); function updatePreview() { var previewFrame = document.getElementById('preview'); var preview = previewFrame.contentDocument || previewFrame.contentWindow.document; preview.open(); preview.write(editor.getValue()); preview.close(); } setTimeout(updatePreview, 300);