Last active
December 31, 2015 05:59
-
-
Save atlefren/7944892 to your computer and use it in GitHub Desktop.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <html> | |
| <head> | |
| <title></title> | |
| <style> | |
| div.col50 { | |
| width: 50%; | |
| float: left; | |
| } | |
| textarea { | |
| width: 95%; | |
| height: 95%; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div class="col50"> | |
| <textarea id="input"></textarea> | |
| </div> | |
| <div id="preview" class="col50"></div> | |
| <script src="http://code.jquery.com/jquery-1.10.2.min.js"></script> | |
| <script src="markdown.min.js"></script> <!-- https://github.com/evilstreak/markdown-js/releases --> | |
| <script type="text/javascript"> | |
| (function () { | |
| "use strict"; | |
| var tabLength = 4; | |
| function previewMarkdown() { | |
| var markdown_text = $("#input").val(); | |
| $("#preview").html(markdown.toHTML(markdown_text)); | |
| } | |
| previewMarkdown(); | |
| $("#input").keyup(previewMarkdown); | |
| $("textarea").keydown(function(e) { | |
| if(e.keyCode === 9) { // tab was pressed | |
| // get caret position/selection | |
| var start = this.selectionStart; | |
| var end = this.selectionEnd; | |
| var $this = $(this); | |
| var value = $this.val(); | |
| // set textarea value to: text before caret + tab + text after caret | |
| $this.val(value.substring(0, start) + Array(tabLength + 1).join(" ") + value.substring(end)); | |
| // put caret at right position again (add one for the tab) | |
| this.selectionStart = this.selectionEnd = start + tabLength; | |
| // prevent the focus lose | |
| e.preventDefault(); | |
| } | |
| }); | |
| }()); | |
| </script> | |
| </body> | |
| </html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment