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133 lines
4.4 KiB
133 lines
4.4 KiB
<!doctype html> |
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<title>CodeMirror: Tern 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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<link rel="stylesheet" href="../addon/dialog/dialog.css"> |
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<link rel="stylesheet" href="../addon/hint/show-hint.css"> |
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<link rel="stylesheet" href="../addon/tern/tern.css"> |
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<script src="../lib/codemirror.js"></script> |
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<script src="../mode/javascript/javascript.js"></script> |
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<script src="../addon/dialog/dialog.js"></script> |
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<script src="../addon/hint/show-hint.js"></script> |
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<script src="../addon/tern/tern.js"></script> |
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<script src="https://unpkg.com/acorn/dist/acorn.js"></script> |
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<script src="https://unpkg.com/acorn-loose/dist/acorn-loose.js"></script> |
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<script src="https://unpkg.com/acorn-walk/dist/walk.js"></script> |
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<script src="//ternjs.net/doc/demo/polyfill.js"></script> |
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<script src="https://unpkg.com/tern/lib/signal.js"></script> |
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<script src="https://unpkg.com/tern/lib/tern.js"></script> |
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<script src="https://unpkg.com/tern/lib/def.js"></script> |
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<script src="https://unpkg.com/tern/lib/comment.js"></script> |
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<script src="https://unpkg.com/tern/lib/infer.js"></script> |
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<script src="https://unpkg.com/tern/plugin/doc_comment.js"></script> |
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<style> |
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.CodeMirror {border: 1px solid #ddd;} |
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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="#">Tern</a> |
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</ul> |
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</div> |
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<article> |
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<h2>Tern Demo</h2> |
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<form><textarea id="code" name="code">// Use ctrl-space to complete something |
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// Put the cursor in or after an expression, press ctrl-o to |
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// find its type |
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var foo = ["array", "of", "strings"]; |
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var bar = foo.slice(0, 2).join("").split("a")[0]; |
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// Works for locally defined types too. |
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function CTor() { this.size = 10; } |
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CTor.prototype.hallo = "hallo"; |
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var baz = new CTor; |
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baz. |
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// You can press ctrl-q when the cursor is on a variable name to |
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// rename it. Try it with CTor... |
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// When the cursor is in an argument list, the arguments are |
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// shown below the editor. |
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[1].reduce( ); |
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// And a little more advanced code... |
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(function(exports) { |
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exports.randomElt = function(arr) { |
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return arr[Math.floor(arr.length * Math.random())]; |
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}; |
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exports.strList = "foo".split(""); |
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exports.intList = exports.strList.map(function(s) { return s.charCodeAt(0); }); |
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})(window.myMod = {}); |
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var randomStr = myMod.randomElt(myMod.strList); |
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var randomInt = myMod.randomElt(myMod.intList); |
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</textarea></form> |
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<p>Demonstrates integration of <a href="http://ternjs.net/">Tern</a> |
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and CodeMirror. The following keys are bound:</p> |
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<dl> |
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<dt>Ctrl-Space</dt><dd>Autocomplete</dd> |
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<dt>Ctrl-O</dt><dd>Find docs for the expression at the cursor</dd> |
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<dt>Ctrl-I</dt><dd>Find type at cursor</dd> |
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<dt>Alt-.</dt><dd>Jump to definition (Alt-, to jump back)</dd> |
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<dt>Ctrl-Q</dt><dd>Rename variable</dd> |
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<dt>Ctrl-.</dt><dd>Select all occurrences of a variable</dd> |
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</dl> |
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<p>Documentation is sparse for now. See the top of |
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the <a href="../addon/tern/tern.js">script</a> for a rough API |
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overview.</p> |
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<script> |
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function getURL(url, c) { |
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var xhr = new XMLHttpRequest(); |
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xhr.open("get", url, true); |
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xhr.send(); |
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xhr.onreadystatechange = function() { |
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if (xhr.readyState != 4) return; |
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if (xhr.status < 400) return c(null, xhr.responseText); |
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var e = new Error(xhr.responseText || "No response"); |
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e.status = xhr.status; |
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c(e); |
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}; |
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} |
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var server; |
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getURL("https://unpkg.com/tern/defs/ecmascript.json", function(err, code) { |
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if (err) throw new Error("Request for ecmascript.json: " + err); |
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server = new CodeMirror.TernServer({defs: [JSON.parse(code)]}); |
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editor.setOption("extraKeys", { |
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"Ctrl-Space": function(cm) { server.complete(cm); }, |
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"Ctrl-I": function(cm) { server.showType(cm); }, |
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"Ctrl-O": function(cm) { server.showDocs(cm); }, |
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"Alt-.": function(cm) { server.jumpToDef(cm); }, |
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"Alt-,": function(cm) { server.jumpBack(cm); }, |
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"Ctrl-Q": function(cm) { server.rename(cm); }, |
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"Ctrl-.": function(cm) { server.selectName(cm); } |
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}) |
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editor.on("cursorActivity", function(cm) { server.updateArgHints(cm); }); |
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}); |
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var editor = CodeMirror.fromTextArea(document.getElementById("code"), { |
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lineNumbers: true, |
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mode: "javascript" |
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}); |
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</script> |
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</article>
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