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<!doctype html>
<html>
<head>
<title>CodeMirror: Autocomplete Demo</title>
<link rel="stylesheet" href="../lib/codemirror.css">
<script src="../lib/codemirror.js"></script>
<script src="../lib/util/simple-hint.js"></script>
<link rel="stylesheet" href="../lib/util/simple-hint.css">
<script src="../lib/util/javascript-hint.js"></script>
<script src="../mode/javascript/javascript.js"></script>
<link rel="stylesheet" href="../doc/docs.css">
<style type="text/css">.CodeMirror {border: 1px solid #eee;} .CodeMirror-scroll { height: 100% }</style>
</head>
<body>
<h1>CodeMirror: Autocomplete demo</h1>
<form><textarea id="code" name="code">
function getCompletions(token, context) {
var found = [], start = token.string;
function maybeAdd(str) {
if (str.indexOf(start) == 0) found.push(str);
}
function gatherCompletions(obj) {
if (typeof obj == "string") forEach(stringProps, maybeAdd);
else if (obj instanceof Array) forEach(arrayProps, maybeAdd);
else if (obj instanceof Function) forEach(funcProps, maybeAdd);
for (var name in obj) maybeAdd(name);
}
if (context) {
// If this is a property, see if it belongs to some object we can
// find in the current environment.
var obj = context.pop(), base;
if (obj.className == "js-variable")
base = window[obj.string];
else if (obj.className == "js-string")
base = "";
else if (obj.className == "js-atom")
base = 1;
while (base != null && context.length)
base = base[context.pop().string];
if (base != null) gatherCompletions(base);
}
else {
// If not, just look in the window object and any local scope
// (reading into JS mode internals to get at the local variables)
for (var v = token.state.localVars; v; v = v.next) maybeAdd(v.name);
gatherCompletions(window);
forEach(keywords, maybeAdd);
}
return found;
}
</textarea></form>
<p>Press <strong>ctrl-space</strong> to activate autocompletion. See
the code (<a href="../lib/util/simple-hint.js">here</a>
and <a href="../lib/util/javascript-hint.js">here</a>) to figure out
how it works.</p>
<script>
CodeMirror.commands.autocomplete = function(cm) {
CodeMirror.simpleHint(cm, CodeMirror.javascriptHint);
}
var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
lineNumbers: true,
extraKeys: {"Ctrl-Space": "autocomplete"}
});
</script>
</body>
</html>
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