73 lines
2.2 KiB
HTML
73 lines
2.2 KiB
HTML
<!doctype html>
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<title>CodeMirror: Lazy Mode Loading Demo</title>
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<meta charset="utf-8"/>
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<link rel=stylesheet href="../doc/docs.css">
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<link rel="stylesheet" href="../lib/codemirror.css">
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<script src="../lib/codemirror.js"></script>
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<script src="../addon/mode/loadmode.js"></script>
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<script src="../mode/meta.js"></script>
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<style>
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.CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}
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</style>
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<div id=nav>
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<a href="https://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../doc/logo.png"></a>
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<ul>
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<li><a href="../index.html">Home</a>
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<li><a href="../doc/manual.html">Manual</a>
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<li><a href="https://github.com/codemirror/codemirror">Code</a>
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</ul>
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<ul>
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<li><a class=active href="#">Lazy Mode Loading</a>
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</ul>
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</div>
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<article>
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<h2>Lazy Mode Loading Demo</h2>
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<p style="color: gray">Current mode: <span id="modeinfo">text/plain</span></p>
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<form><textarea id="code" name="code">This is the editor.
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// It starts out in plain text mode,
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# use the control below to load and apply a mode
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"you'll see the highlighting of" this text /*change*/.
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</textarea></form>
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<p>Filename, mime, or mode name: <input type=text value=foo.js id=mode> <button type=button onclick="change()">change mode</button></p>
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<script>
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CodeMirror.modeURL = "../mode/%N/%N.js";
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var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
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lineNumbers: true
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});
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var modeInput = document.getElementById("mode");
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CodeMirror.on(modeInput, "keypress", function(e) {
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if (e.keyCode == 13) change();
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});
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function change() {
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var val = modeInput.value, m, mode, spec;
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if (m = /.+\.([^.]+)$/.exec(val)) {
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var info = CodeMirror.findModeByExtension(m[1]);
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if (info) {
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mode = info.mode;
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spec = info.mime;
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}
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} else if (/\//.test(val)) {
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var info = CodeMirror.findModeByMIME(val);
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if (info) {
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mode = info.mode;
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spec = val;
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}
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} else {
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mode = spec = val;
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}
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if (mode) {
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editor.setOption("mode", spec);
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CodeMirror.autoLoadMode(editor, mode);
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document.getElementById("modeinfo").textContent = spec;
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} else {
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alert("Could not find a mode corresponding to " + val);
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}
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}
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</script>
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</article>
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