| <!doctype html> |
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| <title>CodeMirror: Indented wrapped line demo</title> |
| <meta charset="utf-8"/> |
| <link rel=stylesheet href="../doc/docs.css"> |
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| <link rel="stylesheet" href="../lib/codemirror.css"> |
| <script src="../lib/codemirror.js"></script> |
| <script src="../mode/xml/xml.js"></script> |
| <style> |
| .CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;} |
| .CodeMirror pre > * { text-indent: 0px; } |
| </style> |
| <div id=nav> |
| <a href="https://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../doc/logo.png"></a> |
|
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| <ul> |
| <li><a href="../index.html">Home</a> |
| <li><a href="../doc/manual.html">Manual</a> |
| <li><a href="https://github.com/codemirror/codemirror">Code</a> |
| </ul> |
| <ul> |
| <li><a class=active href="#">Indented wrapped line</a> |
| </ul> |
| </div> |
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| <article> |
| <h2>Indented wrapped line demo</h2> |
| <form><textarea id="code" name="code"> |
| <!doctype html> |
| <body> |
| <h2 id="overview">Overview</h2> |
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| <p>CodeMirror is a code-editor component that can be embedded in Web pages. The core library provides <em>only</em> the editor component, no accompanying buttons, auto-completion, or other IDE functionality. It does provide a rich API on top of which such functionality can be straightforwardly implemented. See the <a href="#addons">add-ons</a> included in the distribution, and the <a href="https://github.com/jagthedrummer/codemirror-ui">CodeMirror UI</a> project, for reusable implementations of extra features.</p> |
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| <p>CodeMirror works with language-specific modes. Modes are JavaScript programs that help color (and optionally indent) text written in a given language. The distribution comes with a number of modes (see the <a href="../mode/"><code>mode/</code></a> directory), and it isn't hard to <a href="#modeapi">write new ones</a> for other languages.</p> |
| </body> |
| </textarea></form> |
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| <p>This page uses a hack on top of the <code>"renderLine"</code> |
| event to make wrapped text line up with the base indentation of |
| the line.</p> |
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| <script> |
| var editor = CodeMirror.fromTextArea(document.getElementById("code"), { |
| lineNumbers: true, |
| lineWrapping: true, |
| mode: "text/html" |
| }); |
| var charWidth = editor.defaultCharWidth(), basePadding = 4; |
| editor.on("renderLine", function(cm, line, elt) { |
| var off = CodeMirror.countColumn(line.text, null, cm.getOption("tabSize")) * charWidth; |
| elt.style.textIndent = "-" + off + "px"; |
| elt.style.paddingLeft = (basePadding + off) + "px"; |
| }); |
| editor.refresh(); |
| </script> |
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| </article> |
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